English - Rice Lake Weighing Systems
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A magazine and REFERENCE TOOL FOR THE WEIGHING INDUSTRY / Winter 2010 • issue 2 • vol. 7
WHAT’ What's S New NEW<br />
Ishida Uni-7 Series<br />
The Ishida Uni-7 Price-Computing<br />
Scale/Printer Series includes<br />
several models with unique<br />
features. Here are just a few.<br />
this issue<br />
rice lake<br />
magazine<br />
winter 2010 • Issue 2 • Vol. 7<br />
software for CW-90<br />
and CW-90X<br />
WeighVault allows CW-90/90X users<br />
to add, edit, and access IDs over a network<br />
connection. WeighVault surpasses<br />
the CW-90/90X’s 50 ID limitation<br />
and eliminates front-panel entry<br />
of ID parameters. It also collects<br />
data as transactions occur and<br />
provides detailed transaction and<br />
productivity reports that can be<br />
exported to Excel, Word, or PDF. If an<br />
ID is entered in WeighVault, the CW-90/90X<br />
will load and begin using it when that ID number<br />
is selected from the front panel. www.ricelake.com/weighvault ▪<br />
RL9000TWM-HT rated to 400⁰ F.<br />
<strong>Rice</strong> <strong>Lake</strong> now stocks high temperature<br />
versions of the RL9000TWM weigh<br />
module rated to 400⁰ F with 25 ft of Teflon®<br />
cable. All other specifications are identical<br />
to the standard RL9000TWM.<br />
The RL9000TWM-HT<br />
is now in stock and part<br />
numbered up to 50,000 lb<br />
capacity. Higher capacities<br />
available as special quote.<br />
www.ricelake.com/hightemp ▪<br />
<strong>Rice</strong> <strong>Lake</strong>’s Versa-portion <br />
is compact and has a large platter that is<br />
perfect for kitchens, laboratories, and work<br />
stations. With a removable stainless steel<br />
cover and IP68 rating, inevitable spills are<br />
easy to clean. The bright LED display is<br />
visible in dim light, and the keypad’s fourbutton<br />
operation is simple to use. Toggle<br />
between ounces, pounds, and grams. Tare<br />
a product or container up to one-half of<br />
total scale capacity. By adding an optional<br />
battery, the Versa-portion provides up to<br />
60 hours of continuous use.<br />
www.ricelake.com/versaportion ▪<br />
The Uni-7 Hanging model is<br />
the only hanging scale with a color<br />
touch screen. Eye-level keypad<br />
and display are up and away<br />
from moisture.<br />
The Uni-7 Elevated Keypad model<br />
offers additional ergonomic benefits<br />
to many types of work areas.<br />
Available with optional receipt<br />
printer and color customer display.<br />
The Uni-7 Self-Serve model offers<br />
modular product billboards that<br />
can be arranged to suit self-serve<br />
needs. Large, easy-to-read displays<br />
are customer-friendly.<br />
For more details go to<br />
www.ricelake.com/uni7<br />
What’s New<br />
2<br />
Sticky Situation<br />
H. B. Fuller has 90 days to be up-and-running<br />
4<br />
Animals say ahhhhhhhhhh<br />
8<br />
READ THIS<br />
before you buy a cut-rate load cell<br />
12<br />
It’s Alive<br />
How Micro-Organisms Shape<br />
the Blue Jean Industry<br />
14<br />
wrapping up 2010<br />
18<br />
COKING COAL<br />
24<br />
Bruce has a Gift<br />
26<br />
<strong>Rice</strong> <strong>Lake</strong>’s 2010 News Clips<br />
Surviving Ike 7<br />
Kanawha’s Big Iron 9<br />
Anchors Aweigh: <strong>Rice</strong> <strong>Lake</strong><br />
test weights tip the boat 11<br />
Reputation on the line 13<br />
One cause for delayed<br />
luggage eliminated 17<br />
SURVIVOR® goes on a ferry ride 23<br />
Editorial Staff:<br />
Carol Ailes, Technical Writer<br />
Melanie Al Faraj, Technical Writer<br />
Tamala Anderson, Designer<br />
Cheryl Aune, Literature Manager<br />
Bob Chatten, Translator<br />
Matt Davis, Marketing Specialist<br />
Jessica de la Cruz, Writer<br />
Melissa Hjelle, Marketing Specialist<br />
Katy Madden, Senior Editor<br />
Hannah Martell, Designer<br />
Kelly Musil, Catalog Manager<br />
Caleb Olson, Technical Writer, Reporter<br />
Pat Ranfranz, Marketing Director<br />
Adam Sharpe, Web Master<br />
Tina Slayton, Marketing Specialist<br />
Kevin Theese, Marketing Support<br />
Stacy White, Marketing Specialist<br />
Kristina Zengaffinen, Senior Designer<br />
WE LOOK FORWARD TO WEIGHING IN THE NEW YEAR.<br />
If the second decade of the 21 st century is anything like the first, we will witness many<br />
changes in the weighing industry. As always, <strong>Rice</strong> <strong>Lake</strong> is poised to meet new challenges<br />
and to lead with new products and services.<br />
We celebrate the holidays and see everything on our tables from turkey to cranberries,<br />
from wine to cheese, and from gelatin to jelly beans, and we’re grateful—especially<br />
when we think about how the entire feast is weighed or counted, measured and processed<br />
with <strong>Rice</strong> <strong>Lake</strong> equipment.<br />
In this issue, we share a wide range of information. You’ll find the latest on <strong>Rice</strong> <strong>Lake</strong><br />
equipment applications as far from Wisconsin as Brazil, along with stories that feature<br />
adhesives, coking coal, blue jeans, yachts, sea lions, and giraffes. We explore the<br />
mystery behind inexpensive load cells, and why and how to back up your data to help<br />
ensure that the new year for your business is a safe, happy, and prosperous one.<br />
From all of us at <strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong><br />
to all of you—may 2011 be your best by every measure.<br />
RICE LAKE ONLINE MAGAZINE<br />
Going green Access the <strong>Rice</strong> <strong>Lake</strong> magazine online.<br />
You will enjoy the same great stories plus links to more<br />
information. Also, with electronic access, you can easily<br />
share articles with employees and customers.<br />
To subscribe:<br />
Go to www.ricelake.com/ricelakemagazine and<br />
complete the online form.<br />
It’s that easy. If you have any questions, please email<br />
us at rlmagazine@ricelake.com.<br />
Find us on facebook:<br />
www.facebook.com/ricelakeweighingsystems<br />
<strong>Rice</strong> <strong>Lake</strong>’s Baby New Year is being weighed on the <strong>Rice</strong> <strong>Lake</strong> Digital Baby Scale (RL-DBS).<br />
The large LCD display and 44 lb capacity makes this scale perfect for infant weighing.<br />
2 RICE LAKE MAGAZINE | www.ricelake.com<br />
www.ricelake.com | RICE LAKE MAGAZINE 3
On location<br />
On location<br />
The H.B. Fuller Construction Products division, headquartered in Aurora, IL, is at the forefront of construction<br />
products innovation. Here, a very lean crew formulates, mixes and packages a long list of mastics, coatings, sealants and adhesives used<br />
in commercial and residential construction.<br />
They make ceramic tile installation products, flooring adhesives, surface preparation products, exterior insulation finish systems and<br />
epoxy flooring for commercial and professional contractor markets. They also batch pre-mixed grouts, mortars and other products<br />
targeted predominantly to the retail home improvement marketplace. Jim Holman, president of Fox Valley Scale, New Lenox, IL, puts<br />
it in a nutshell, “They make sticky stuff.” Fox Valley Scale was called to the H. B. Fuller Construction Products plant to come up with a<br />
solution for what could have been a sticky situation.<br />
“We needed a controller that was simple and powerful. We made the choice and it paid<br />
off huge. We realized a return within four months. I don’t think we have ever had to scrap<br />
a batch. We run about 20,000 pounds of product a day though this area of our operation.<br />
I’ve got a box here of data we collected to keep track of variances.<br />
But we don’t collect data anymore because there is so little variance. Saves some trees.”<br />
Geoffrey Russell, H.B. Fuller production manager<br />
Left to right: Geoffrey Russell, H.B. Fuller production manager, Mike Ryan, <strong>Rice</strong> <strong>Lake</strong> Great <strong>Lake</strong>s regional director,<br />
Jim Sansone, H.B. Fuller maintenance manager, Jim Holman, Fox Valley Scale president, Travis TJ Oehmen,<br />
and Joel Velazquez, Fox Valley Scale service technicians<br />
Geoffrey Russell, production manager,<br />
and Jim Sansone, maintenance manager,<br />
recall the day they were advised that a<br />
variety of new processing and packaging<br />
equipment was being moved to the Aurora<br />
facility. Jim remembers, “We had to figure<br />
out how we could combine that new<br />
production equipment with the existing<br />
manufacturing area and be up and running<br />
in ninety days.”<br />
Jim Sansone, maintenance manager,<br />
reviewed current production methods<br />
of the used equipment transferring to<br />
the Aurora factory. He realized that<br />
much of the equipment and processes<br />
were well over 20 years old and needed<br />
an upgrade in technology. Manual raw<br />
material weighing systems needed to be<br />
automated. The company had limited<br />
knowledge in using load cells and wanted<br />
to minimize capital spent on the relocation<br />
of the equipment. Jim notes, “We<br />
had to justify the money.”<br />
Jim Holman did his research and Fox<br />
Valley Scale came back with this 920i®<br />
solution. Holman remembers the planning<br />
meeting. “I came up to <strong>Rice</strong> <strong>Lake</strong><br />
and had a breakfast meeting with Don<br />
Fiedler and Marvin Stodola [<strong>Rice</strong> <strong>Lake</strong><br />
engineers] and Mike Ryan [<strong>Rice</strong> <strong>Lake</strong><br />
Great <strong>Lake</strong>s regional director]. We literally<br />
figured it out in an hour on the back<br />
of a napkin at the restaurant. Kristi Gay<br />
[<strong>Rice</strong> <strong>Lake</strong> engineer] wrote the program<br />
and created the tables to recall formulas.”<br />
The system includes eight 920i s with<br />
24-channel I/O and Ethernet® outputs.<br />
Holman believes the solution is perfect.<br />
“All the 920i s are tied to one network<br />
printer. Supervisors are using Interchange®<br />
to load formulas from the office<br />
via the printer. One really neat aspect of<br />
the system is that any one of the 920i s<br />
can be used as a backup for any of the<br />
others. The I/O is redundant throughout<br />
the system. It can be changed simply wire<br />
for wire.”<br />
Meanwhile, back at the plant in Aurora,<br />
Sansone and Russell were designing and<br />
building the steel mezzanine.<br />
Continued on page 6<br />
4 RICE LAKE MAGAZINE | www.ricelake.com<br />
www.ricelake.com | RICE LAKE MAGAZINE 5
On location<br />
“One really neat<br />
aspect of the system<br />
is that any one<br />
of the 920i ® s can<br />
be used as a backup<br />
for any of the<br />
others. The I/O<br />
is redundant<br />
throughout the<br />
system. It can be<br />
changed simply<br />
wire for wire.”<br />
Jim Holman, president,<br />
Fox Valley Scale, New Lenox, IL<br />
Surviving Ike<br />
On September 9, 2008, as Hurricane Ike neared landfall near Galveston, Texas,<br />
it became the largest Atlantic tropical cyclone in recorded history, measuring<br />
900 miles in diameter. The National Weather Service issued a strongly worded<br />
bulletin advising residents living in some parts of coastal Texas that they faced<br />
"certain death" if they did not heed orders to evacuate.<br />
Ike’s 20-foot storm surge brought certain death to many truck scales in<br />
Texas—but not the SURVIVOR® OTR that Gary Becton, lead technician<br />
with <strong>Weighing</strong> Technologies, Seabrook, Texas, is still talking about to this<br />
day. “We had the service contract on this scale, and the owner asked us to<br />
come and take a look at it after the surge water went down. The scale had<br />
been under fifteen feet of saltwater for days. We opened up the summing<br />
box and there wasn’t a drop of water! I guess that’s why <strong>Rice</strong> <strong>Lake</strong> calls<br />
them “survivors.” We put in a new <strong>Rice</strong> <strong>Lake</strong> 420i indicator and printer<br />
and the scale worked perfectly!<br />
“We had other customers in the Galveston area, and none of those truck<br />
scales survived Ike. The modules floated up and came apart. The <strong>Rice</strong> <strong>Lake</strong><br />
scale didn’t float up at all. Probably because it’s heavier steel and the way the<br />
suspension system is designed—it doesn’t allow the scale to float off like all<br />
the others did.<br />
“We’ve moved the scale to another location now. The new owner really likes<br />
the scale. He bought a <strong>Rice</strong> <strong>Lake</strong> floor scale later.” ▪<br />
H.B. Fuller Construction Products built a mezzanine to accommodate a variety of new processing<br />
and packaging equipment being moved from another facility. They were tasked to combine the new<br />
equipment into the existing manufacturing area and be up and running in 90 days.<br />
Sticky Situation continued from page 5<br />
Sansone recalls the Big Day. “The first<br />
time we fired it up, everything worked!<br />
I was pretty happy about that.”<br />
Holman adds, “And it can be expanded.<br />
We can stick another twenty-four<br />
channel card in there. That’s the beauty<br />
of the 920i.”<br />
The factory currently supports another<br />
control system that requires ongoing<br />
vendor changes, which in turn requires<br />
ongoing expense. Sansone agrees, “That<br />
is what got us thinking about another<br />
way to automate this new system. The<br />
920i system is so much easier from a<br />
programming perspective and for updating.<br />
There is a cost to changing raw<br />
materials and formulas with the older<br />
system. We do that a lot. The fact that<br />
we can do it in a text style is huge. With<br />
the 920i, we can load the new formula<br />
and go live today. It’s very flexible. No<br />
controller is unique. They are completely<br />
interchangeable, wire for wire. The<br />
programs are the same. We just load the<br />
batch routine.” ▪<br />
The actuators open and close valves for the<br />
chemical ingredients in each formula. Geoff says<br />
the 920i weighs the ingredients and sends a signal<br />
as the target approaches. It anticipates the dribble<br />
of each ingredient after closing and actually<br />
adapts and improves each time it<br />
formulates a recipe.<br />
6 RICE LAKE MAGAZINE | www.ricelake.com
On location<br />
Kanawha’s Big Iron<br />
Kanawha Scales & <strong>Systems</strong> Inc., Poca, WV, was awarded a multimillion dollar<br />
contract for a fully automated iron ore batch weigh loading facility. The contract was<br />
awarded by VALE, located in the Amazon Jungle and in the town of Carajas, Para,<br />
Brazil. The 24,000 TPH facility will be loading rail wagons with iron ore that will be<br />
exported to China.<br />
Zoo animal handlers and veterinarians cannot peer down a giraffe’s<br />
throat. Obtaining weight data and records on a routine basis with the least amount<br />
of stress to the animal is a science in itself. Gradual or sudden fluctuation in body<br />
weight in zoo and aquarium animals is an early quantifiable indication for closer<br />
examination and treatment or change in diet and exercise.<br />
<strong>Rice</strong> <strong>Lake</strong>’s RoughDeck® is the scale distributors specify because they know it<br />
will stand up to animal use and perform dependably. ▪<br />
The system consists of four weigh bins, two surge bins, with a total height of 211<br />
feet, using 2,165 tons of steel in the construction, four operator control chairs, a batch<br />
system, one train speed indication system, two in-motion rail scales, and a foreign<br />
body detection system for identification of any foreign objects in the wagons<br />
prior to loading.<br />
One of the main control components of this complex system is the <strong>Rice</strong> <strong>Lake</strong><br />
920i® indicator and sixteen 125,000 lb double-ended shear load cells. Each instrument<br />
is equipped with an Ethernet®/IP card to communicate directly with the Allen Bradley<br />
ControlLogix PLC processor and Rockwell Automation’s Factory Talk View SE software<br />
for the HMI displays. This allows all the scale information to be available to the PLC for<br />
exceptional control.<br />
<strong>Rice</strong> <strong>Lake</strong> pit scale in the giraffe enclosure at<br />
Detroit Zoo. Chardo supervises.<br />
Mike Bennett, NuWeigh Scale, Davisburg,<br />
MI, sent us the picture he shot while<br />
installing a 5 ft x 7 ft RoughDeck QC to<br />
weigh giraffes at the Detroit Zoo. The scale<br />
deck was coated with Slipknot® for safer<br />
footing. The pit was dug in a long enclosed<br />
lane that the giraffes walk through. Patricia<br />
Mills Janeway, zoo communications<br />
director, tells us, “Chardo was most<br />
recently weighed on September 28; she<br />
tipped the scale at 1,549 pounds.<br />
Shedd Aquarium senior marine<br />
mammal trainer Kelly Schaaf works<br />
with Ty, a California sea lion, to “speak”<br />
and pause on a <strong>Rice</strong> <strong>Lake</strong> scale so April<br />
Keller can record his weight during a routine<br />
health exam. Marine mammal trainers at Shedd<br />
Aquarium use positive reinforcement to encourage sea<br />
lions and many other animals to participate in their own health<br />
care assessment. ▪<br />
To access Our Day at the Zoo, go to<br />
http://www.ricelake.com/dayatzoo.<br />
The Carajas mine is the world’s largest iron ore mine and has reserves of 1.5 billion<br />
tons of iron ore. Currently Brazil is the world’s largest exporter of iron<br />
ore with an annual production of over 200MT.<br />
Over the years, Kanawha Scales & <strong>Systems</strong> Inc.<br />
has steadily evolved from a weighing equipment<br />
service company into a fully integrated company,<br />
providing engineering solutions for plant floor<br />
automation, material handling, controls systems<br />
engineering, mechanical design, hydraulic design<br />
engineering, computer and PLC programming<br />
and database management systems. From its<br />
beginning, the company has grown to over 200<br />
employees with branch offices and subsidiary<br />
companies in fourteen cities throughout the<br />
Northeast and Central United States,<br />
as well as an office in Beijing,<br />
China, and Sao Paulo, Brazil,<br />
with successful installations in<br />
Canada, Colombia, Brazil, South<br />
Africa, India, Saudi Arabia, The<br />
People’s Republic of China,<br />
and Australia. ▪<br />
Ty, a California sea lion, is weighed<br />
on a <strong>Rice</strong> <strong>Lake</strong> RoughDeck ® floor scale.<br />
“She was born July 11, 1985. Chardo is<br />
listed as a reticulated giraffe, although the<br />
studbook keeper has told us that genetic<br />
testing of the U.S. captive population<br />
shows the reticulated and Rothschild’s<br />
subspecies to be all mixed up and not<br />
really distinguishable.” ▪<br />
8 RICE LAKE MAGAZINE | www.ricelake.com
Anchors Aweigh: <strong>Rice</strong> <strong>Lake</strong><br />
test weights tip the boat<br />
“I have an odd question,” Drew Hains, working for a naval architecture<br />
and marine engineering firm, began his email. “My firm does stability<br />
testing on boats and ships, and we have rented your 1000 lb NIST Class F<br />
Cast Iron Test weights. We are currently looking to do a similar test in the<br />
U.S. Virgin Islands and are having problems finding a local vendor for test<br />
weights… I realize this is an odd request and has little to do with you<br />
selling these products, but it is hard for us to locate local suppliers.”<br />
Chris Olsen, inside sales manager, sent Drew’s request to the <strong>Rice</strong> <strong>Lake</strong><br />
international group that covers the Caribbean and Latin Americas.<br />
Chris sent Drew a reply, “You will be provided with some dealers who<br />
potentially have some of our test weights in those markets. I am<br />
curious, what do you use them to test Normally they are put on<br />
a truck scale for a yearly calibration.”<br />
Drew explained, “To answer your question, we do stability testing on<br />
ships and other small craft such as yachts. With larger ships, large blocks<br />
of concrete (which are weighed before the test) are often used; however<br />
with smaller vessels where deck space is tight, your 500, 1000 and<br />
sometimes 2500 lb test weights are ideal and are easy to handle.<br />
They have the added benefit of being certified weights, thus there is little<br />
question about accuracy. On some smaller vessels we have used the 50 lb<br />
weights and moved the weights by hand during the test. Basically the<br />
test weights are placed on board and then moved transversely from side<br />
to side to apply a known moment as the heel angle is measured. Using<br />
the principles of naval architecture, the vertical center of gravity is then<br />
calculated. Thanks for the prompt response.”<br />
Drew B. Hains. PE<br />
Murray & Associates, L.L.C.<br />
Fort Lauderdale, FL<br />
When is it too much of a good thing<br />
Versa-portion keeps costs in line with every cake<br />
this bakery bakes. The large platter and compact size<br />
make it a perfect fit in commercial kitchens, laboratories,<br />
and work stations.<br />
• IP68 rating<br />
• Removable stainless steel cover<br />
• Bright LED display<br />
• Four-button keypad<br />
• Toggle ounces/pounds/grams<br />
• Tare up to ½ total scale capacity<br />
• Optional 60-hour battery<br />
For more information, go to www.ricelake.com/versatile.<br />
800-472-6703<br />
www.ricelake.com<br />
mobile: m.ricelake.com<br />
“When measuring or<br />
applying ingredients,<br />
Versa-portion is a dependable<br />
way to control your kitchen’s<br />
cost of ingredients and<br />
product quality.”<br />
Ann Crowley,<br />
<strong>Rice</strong> <strong>Lake</strong> product manager<br />
White Chocolate Cream Cheese Icing<br />
layered with Cherry Pie Filling<br />
8 oz white chocolate<br />
12 oz cream cheese, room temp<br />
6 tbsp butter, room temp<br />
1 ½ tsp pure vanilla extract<br />
4 ½ c (22 oz) confectioner’s sugar<br />
7 oz flaked coconut<br />
2 cans cherry pie filling<br />
Directions:<br />
1. Place white chocolate in glass bowl.<br />
Microwave on high 1 minute. Remove<br />
and stir until smooth.<br />
2. Place cream cheese and butter in bowl.<br />
Beat until well combined. Add melted<br />
white chocolate, vanilla and 2½ cups<br />
of confectioner’s sugar. Blend on low<br />
speed until mixed. Add additional sugar<br />
until fluffy.<br />
3. Frost: Place one cake layer on a serving<br />
platter and spread with ¼ frosting, top with<br />
½ cherries (reserve ½ cup for top). Repeat<br />
second layer. Place the third cake layer on<br />
top and frost top and sides of cake. Sprinkle<br />
and gently press coconut over entire cake.<br />
Decorate top with reserved cherries.<br />
Measuring the angle of inclination
Tech talk<br />
Excerpted by Paul Menge,<br />
<strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong> load<br />
cell product manager, from an<br />
article in <strong>Weighing</strong> & Measurement<br />
magazine, April, 2010; The True<br />
Strength of Metal—Not All Cells<br />
Measure Up<br />
In today’s world of electronic<br />
scales, the digital weigh indicator is<br />
the “brain” of the system, doing calculations,<br />
conversions, telling a relay when<br />
to trip or a conveyor belt when to start<br />
or stop. It is logical then to think of the<br />
load cell as the “heart” of the system. I<br />
don’t know about everyone else, but if<br />
I were selling scales or an end user buying<br />
a scale, I would want to make sure<br />
the heart of the system was strong and<br />
reliable, capable of working hard without<br />
failing for many, many years. As the<br />
saying goes “You get what you pay for”<br />
and this holds true with load cells and<br />
scales in general.<br />
It is no secret that many manufacturers<br />
of load cells have moved most, if not all,<br />
the manufacturing of load cells that was<br />
formerly performed in the United States<br />
to facilities they have built in other parts<br />
of the world. This was primarily due to<br />
many new load cell companies offering<br />
inexpensive load cells, necessitating the<br />
need to tap the relatively cheap labor<br />
supply offered by these countries. These<br />
companies needed to remain competitive.<br />
As major manufacturers responded to<br />
this challenge, the low cost load cell<br />
manufacturers felt they had to make a<br />
load cell even less expensive in order to<br />
grow their business. How do you do this<br />
when the playing field was pretty even<br />
You make a cheaper load cell by using<br />
inferior steel, and this is becoming more<br />
common with the less reputable load<br />
cell manufacturers.<br />
The major load cell manufacturers in<br />
the world still use the highest quality<br />
steel and aluminum to make their load<br />
cells. Even with their overseas factories,<br />
many will ship the necessary material<br />
from the United States if local mills<br />
cannot be found that provide a suitable<br />
grade of steel to make high quality load<br />
cells. The best alloy used for making<br />
load cells is 4340. This is the highest<br />
quality alloy in terms of the proper<br />
hardening needed as well as providing<br />
the best performance for making a<br />
good load cell. The best stainless steel<br />
used is 17-4PH. This is a chromiumnickel<br />
grade of stainless that again can<br />
be properly hardened, providing the<br />
best performance for a stainless load<br />
cell. In regards to aluminum load cells,<br />
2024T351 is the best grade to be used<br />
to manufacture them. All three of these<br />
materials are capable of the performance<br />
necessary to make OIML C3 or NTEP<br />
1:5000/10:000 load cells.<br />
Five metals are used overseas to make<br />
alloy load cells. Why five different<br />
grades Simply put, cost. 40CrNiMoA<br />
is the most common material found<br />
abroad that is used in making alloy steel<br />
load cells that will provide OIML and<br />
NTEP performance characteristics and<br />
is the most expensive. Currently there is<br />
only one mill in Asia capable of producing<br />
this grade of steel and guaranteeing<br />
the purity and performance. 40CrNiMo<br />
is a different grade than the previously<br />
mentioned alloy, and you will notice<br />
there is no “A” at the end. It is less<br />
expensive. Without the A designation,<br />
this alloy is similar to a B or C grade,<br />
which is inferior and is a poor material<br />
to use in making a load cell. 40CrNi is<br />
still used by a few foreign manufacturers<br />
but is totally unsuited to make load cells.<br />
40Cr is the most common material used<br />
by foreign manufacturers today because<br />
it is the cheapest but it is not capable of<br />
being heat treated properly and thus the<br />
performance will be very poor along with<br />
the possibility of premature failure.<br />
Continued on page 23<br />
Reputation on the line<br />
When a customer calls <strong>Rice</strong> <strong>Lake</strong><br />
A very good customer of ScaleTech <strong>Systems</strong>, Canada, is John Brooks, plant<br />
manager with F.W. Cobs Company, in Saint Albans Bay, VT. The F.W. Cobs<br />
Company serves the organic and conventional feed industries with top<br />
quality feed ingredients. They supply grains across North America by road<br />
or rail, with their fleet of jumbo hopper rail cars.<br />
John came looking for <strong>Rice</strong> <strong>Lake</strong>. “I read about the 920i® capabilities, and<br />
they fit what I wanted to do. I went to the <strong>Rice</strong> <strong>Lake</strong> website and read some<br />
more and then I called <strong>Rice</strong> <strong>Lake</strong> for more information.”<br />
“The 920i has tremendous capabilities. It is so good, it’s unbelievable. We<br />
have bins of different grains with different fall rates. Wheat, for instance, has<br />
a density of 60 lbs per bushel depending on the moisture content. Wheat<br />
middlings have a density of 17 lbs per bushel. The 920i can look at that and<br />
adjust the closing gate. I can hardly believe how it performs. All the varying<br />
densities are stored in the 920i. It can calculate density, moisture content,<br />
draft size and adjust how long the gate needs to be open, record the cart<br />
and bin number, and control mixing. It’s fun to watch!<br />
“I had another application cleaning grains in cleaning machines. I needed<br />
to know the exact weight of grain before and after it was cleaned. I called<br />
two companies in Canada. Neither one of the people I spoke to were able<br />
to give me any information about their products.<br />
“You can’t put a price on the value of being able to speak to someone who<br />
is capable and very knowledgeable. Every time I’ve called <strong>Rice</strong> <strong>Lake</strong>, someone<br />
got back to me. Don’t lose that! It’s a biggie!” ▪<br />
12 RICE LAKE MAGAZINE | www.ricelake.com
On location<br />
On location<br />
In 1955, the world of blue jeans changed forever. When James<br />
Dean donned his iconic denim threads in Rebel without a Cause, pop culture<br />
instantly adopted the look. No longer were they referred to as “waist overalls” most<br />
commonly worn by painters, mechanics, and old cowboys. Blue jeans became cool,<br />
every teenager wanted a pair, and the demand hasn’t let up in the over half-century<br />
since. Today, the $700 billion global blue jeans market is so prevalent in America that<br />
12 pairs are sold every second in the U.S., and the average American owns seven pairs.<br />
Few things are more identifiable with American culture as blue jeans.<br />
The blue jean has greatly evolved since its popularity skyrocketed. A solid-blue straightleg<br />
soon wasn’t stylish enough. Stone-washed, distressed, and every shade of blue now<br />
fill walls of clothing stores, but few know how these styles are achieved.<br />
How Micro-Organisms Shape<br />
the Blue Jean Industry<br />
Initially, special pumice stones were<br />
used to customize jean appearance;<br />
however, they had major<br />
drawbacks. Not only did<br />
they weaken the jeans,<br />
they also produced inconsistent<br />
results and<br />
were environmentally<br />
unsafe. Special<br />
machines had to be<br />
used to wash the jeans<br />
with the stones. In the<br />
late 1980s, the industry<br />
developed what is now<br />
used today: tiny proteins<br />
known as enzymes to “biostone”<br />
denim. These environmentally<br />
friendly chemicals are<br />
naturally created by living organisms, which is<br />
more economical. They also produce repeatable<br />
results and maintain the jeans’ structural integrity.<br />
It’s as if James Dean combined forces with<br />
Albert Einstein for the benefit of fashion!<br />
IOGEN Corporation is a leader in enzyme<br />
research and implementation. They manipulate<br />
micro-organisms to produce specific enzymes<br />
that facilitate production of a wide variety of<br />
products, including ethanol, papers and textiles,<br />
and, of course, blue jeans—so, if one drives to a<br />
clothing store using ethanol-enhanced gasoline<br />
and writes a check for blue jeans, IOGEN can be<br />
thanked for making the entire process possible.<br />
But IOGEN’s laboratories in Ottawa, Canada,<br />
had a problem. Fiber-digesting enzymes<br />
floating around in fermentation chambers are<br />
difficult to measure. Quantities are important<br />
so enzyme levels can be monitored as they are<br />
researched. At first, they used a marker to label<br />
the chambers with lines indicating fluid levels,<br />
but more precise measurements were desperately<br />
needed.<br />
Continued on page 17<br />
14 RICE LAKE MAGAZINE | www.ricelake.com<br />
www.ricelake.com | RICE LAKE MAGAZINE 15
Make sure your health scale is accurate. Our combination of advanced scale design<br />
and features with the added value of <strong>Rice</strong> <strong>Lake</strong>’s 60 years of weighing technology<br />
leadership makes the critical difference. The <strong>Rice</strong> <strong>Lake</strong> medical scale lineup includes<br />
standard mechanical and digital physician scales, wheelchair ramp scales, folding<br />
wheelchair scales, and pediatric and neonatal scales — all competitively priced.<br />
Contact <strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong> at 800-472-6703<br />
or visit www.ricelake.com/health.<br />
800-472-6703<br />
www.ricelake.com<br />
mobile: m.ricelake.com<br />
It’s Alive continued from page 15<br />
Bogie Ploch, fermentation supervisor at<br />
IOGEN, had an idea. His lab has walls<br />
full of fermentation chambers: smallscale<br />
testing vessels to research enzyme<br />
effectiveness. If the fermentation chambers<br />
could be effectively weighed, the<br />
monitoring process would be far more<br />
intuitive. Instead of exercising guesswork<br />
to estimate levels between lines, precise<br />
weight readings could be used; however,<br />
devising a system to work with existing<br />
equipment would not be easy—that’s<br />
where <strong>Rice</strong> <strong>Lake</strong> and GTR Scales came<br />
into play.<br />
Jeff Wallace, owner of GTR Scales in<br />
Arnprior, west of Ottawa, thrives on<br />
custom applications. Not one to shy away<br />
from a challenge, he used <strong>Rice</strong> <strong>Lake</strong> load<br />
cells and instrumentation to customize<br />
the container and attach a load cell directly<br />
to the vessel—an industry first. This<br />
allows data collection to be done quickly<br />
and accurately. “Since it’s a sealed unit,<br />
nothing could be inserted to measure the<br />
level,” Jeff explains. “So we modified the<br />
rig itself. We used IQ plus 355 indicators<br />
with analog output so it can report back<br />
to the PLC, and they have an automated<br />
system to collect data.”<br />
IOGEN is very pleased with the custom<br />
setup. “Since the manufacturer of the<br />
vessels doesn’t provide an option with<br />
load cells built in,” Bogie proudly explains,<br />
“this unique system gives IOGEN an<br />
advantage over our competitors. The<br />
indicators are very nice, and GTR did<br />
an excellent job. We haven’t had any<br />
problems with the indicators or load<br />
cells. Monitoring enzyme levels is much<br />
more scientific now.”<br />
Initially, only a handful of the over 20<br />
fermentation chambers were customized;<br />
however, those have been so<br />
successful that the remaining vessels<br />
will soon be fitted with load cells as<br />
well. Eventually, the entire lab will be<br />
accented by the comforting red glow of<br />
the IQ plus 355’s LED display: a perfect<br />
nightlight for the micro-organisms that<br />
make our jeans possible. ▪<br />
One cause for delayed<br />
luggage eliminated<br />
Julia Buergi, RoughDeck® product manager, sounded excited. She<br />
emailed the magazine team: “One of the VIP folks here (at the <strong>Rice</strong> <strong>Lake</strong><br />
plant in Wisconsin) reminded me that they sold a large floor scale in<br />
Canada that is being used to weigh airline cargo. They are open to a story,<br />
so please speak with them while they are here if possible.”<br />
We are always looking for a good story, and the way Ray Gauvreau, sales<br />
representative with Superior Technologies, <strong>Weighing</strong> & Controls, Inc., told<br />
it, we were on the edge of our chairs. “Our customer had a 10 x 10 ft floor<br />
scale, with ramps on all four sides, which trains of baggage carts would<br />
drive over so that each cart could be weighed then placed correctly in<br />
the plane’s baggage compartment to distribute the weight.<br />
“With ramps on all sides, the baggage cart trains could cross the scale<br />
platform from any direction. That’s what caused the scale to break down.<br />
The operators would corner or side load and feet would break off, or a<br />
load cell would be damaged. We had a service contract with them, and<br />
we would race over there from forty miles away to get the scale back<br />
in operation while the plane sat on the tarmac. We went through that<br />
breakdown and repair mode for about four years, before permission<br />
trickled down that they could buy a new scale. Now they have a 10 x 10<br />
ft, 10,000 pound capacity RoughDeck—with just two ramps! They didn’t<br />
need those four ramps.”
Tech talk<br />
Tech talk<br />
Why back up<br />
A backup system is like a fire extinguisher<br />
or a spare tire; you don’t ever<br />
want to have to use it, but when you<br />
need it, it’s great to know that it is there.<br />
If you’ve wondered what to back up,<br />
how, how often, and where to store your<br />
backups, this article is for you.<br />
Data loss<br />
This sounds pretty obvious, but<br />
consider this: how bad would it be if<br />
you lost your entire system in some sort<br />
of disaster (fire, flood, lightning strike)<br />
Even if the insurance company delivered<br />
all new equipment to your door the following<br />
day, it wouldn’t help unless you<br />
had a backup of the programs and data<br />
on your computer.<br />
Suddenly the value of the system is much<br />
more than the mere cost of the hardware.<br />
You may even find that the hardware<br />
without the data is almost useless in terms<br />
of getting (and keeping) your business up<br />
and running. The time to think about this<br />
and plan for it is now, when everything is<br />
running smoothly.<br />
Data retention<br />
Depending on the content of the<br />
data and its use, there may be additional<br />
legal reasons and/or requirements to<br />
maintain a historical record of various<br />
types of data and transactions. When in<br />
doubt, consult legal counsel before beginning<br />
to plan any system that will use or<br />
record personal, financial (like credit card<br />
numbers) or corporate data that might be<br />
called up in any legal proceedings.<br />
Data review (history)<br />
In addition to the more obvious reasons,<br />
sometimes the value in historical data<br />
can be realized in “mining” the data,<br />
looking for patterns or knowledge that<br />
can be used to make future decisions<br />
concerning purchasing and business<br />
trends and predictions such as when<br />
certain products are most popular.<br />
What to back up<br />
Data<br />
Data is simply any piece of information.<br />
Some pieces of information are more<br />
important than others and all of it needs<br />
to be in context. When determining<br />
what to back up, simply look at anything<br />
that might even remotely be of value<br />
in a historical or restorative perspective.<br />
When in doubt, back it up! Storage<br />
space today is relatively inexpensive,<br />
and information can always be erased<br />
or deleted later if and when the space<br />
is needed and the data is no longer<br />
relevant. There are a number of sources<br />
for determining what is needed and<br />
for how long, but consulting with legal<br />
counsel may also be a wise thing to do<br />
in many cases. What would you need to<br />
be able to continue to run your business<br />
without any lost revenue (billing), lost<br />
time (work in process), sales info (customer<br />
lists) and other things The actual<br />
programs do not need to be backed up,<br />
just the data. You should make sure<br />
you have software installation discs or<br />
some form of the actual programs (MS<br />
Office®, AutoCAD®, Salesforce®) so you<br />
can restore these programs in case of<br />
hardware replacement.<br />
Some examples include calibration<br />
certificates for scales, internal ISO<br />
documentation, data<br />
retrieved from customers<br />
and accounting information.<br />
Variables<br />
It is also important to back up data that<br />
changes. To determine what to back up,<br />
imagine the scenario of a disaster such<br />
as a fire. In other words, any data—such<br />
as inventory, costing, customer invoices<br />
and other things that are updated on<br />
a regular basis—should be backed up.<br />
This way, in the event of a failure, you<br />
can access the latest values for that data.<br />
Dates<br />
Sometimes the date and/or time of a<br />
transaction can be important. Be sure<br />
to examine and consider the content of<br />
your backup and whether the date that<br />
the change took place is important. If<br />
so, be sure the time and date information<br />
is included in what you back up.<br />
Program settings<br />
Jim Daggon<br />
<strong>Rice</strong> <strong>Lake</strong> senior engineer,<br />
emerging technologies<br />
Some programs have certain settings<br />
that may change on a regular basis. Examples<br />
of this include print formats, file<br />
locations, custom features and operations,<br />
and customer data<br />
and logos. This data should also<br />
be backed up at least once during each<br />
change, so the latest program settings<br />
are available.<br />
Time-sensitive material<br />
Finally, consider what data, if any, is<br />
time sensitive. An expiration date, a lot<br />
number, or any data that will become<br />
irrelevant after a certain time will fall<br />
into this category.<br />
Continued on page 20<br />
18 RICE LAKE MAGAZINE | www.ricelake.com<br />
www.ricelake.com | RICE LAKE MAGAZINE 19
Tech talk<br />
Tech talk<br />
Wrapping Up 2010 continued from page 19<br />
What NOT to back up<br />
Programs<br />
There are two reasons not to back up<br />
programs, other than making an archival<br />
copy (just a copy of the disk or files that<br />
were initially received when the program<br />
was purchased).<br />
Most programs today are installed on systems<br />
using an installation program. These<br />
programs build files, modify other files<br />
and actually write certain variables to the<br />
program as the installation is taking place.<br />
Since these programs are not usually simply<br />
copied to a system, to restore them from a<br />
backup can be very difficult. Use the install<br />
program and the original program files,<br />
and then install any updates. The data can<br />
then be restored from the backup, and you<br />
should be fully operational.<br />
Usually the program does not change,<br />
so making repeated backups of the same<br />
thing simply takes up space unnecessarily.<br />
Old files: dynamic vs. static<br />
Older files that are no longer changing<br />
are usually best served by archiving them<br />
rather than backing them up on a regular<br />
basis. The difference between an archive<br />
and a backup is simply how many times<br />
it is done. An archive is usually backed up<br />
only once and then one or more copies<br />
are stored in a secure but possibly more<br />
remote location than the backup.<br />
When to back up<br />
Data variance rates<br />
To answer the question, “How often should<br />
I back up” ask yourself, “How old can<br />
the data be after a failure” In other<br />
words, if you were running a stock trading<br />
exchange, you probably wouldn’t want<br />
to rely on data that is three months old.<br />
On the other hand, if you are balancing<br />
a checkbook, you probably do not need<br />
hourly backups. Consider the effort involved<br />
and how often your data changes.<br />
If you could reconstruct the last four days<br />
from papers and memory, then a weekly<br />
backup would probably work well. If<br />
there is a big increase in the data, then an<br />
interim backup might be needed.<br />
How to back up<br />
Schedule<br />
Taking into account the data variance<br />
rates above, a scheduled automatic<br />
backup is usually better than “I’ll try to<br />
remember to do it this Friday.” Setting<br />
a schedule will assure that backups are<br />
done as often as necessary.<br />
Media<br />
Decide what type of media on which<br />
you are going to back up your data.<br />
Small amounts can be backed up to a<br />
USB Flash drive. These are relatively<br />
inexpensive and can be erased and<br />
rewritten, but they only<br />
handle about 16-32<br />
GB of data.<br />
If you need more than that, you might<br />
look at writable CDs, rewritable DVDs,<br />
or even external hard drives.<br />
Personnel<br />
Decide who is going to be responsible<br />
for doing the backup and verifying the<br />
data. The last thing you want to hear in<br />
the event of data loss is, “Well, I thought<br />
someone else was doing it!”<br />
Reporting in place<br />
(including error reporting)<br />
If the backup program returns an error,<br />
or something goes wrong with the<br />
backup, the time to deal with it is now,<br />
not after the data is lost. This falls under<br />
the category of “closing the barn door<br />
after the horses have gone.<br />
Where to back up<br />
Onsite/Offsite<br />
You can simply make a backup on some<br />
appropriate media and keep copies in the<br />
company vault. (A fireproof box is a simple<br />
and economic way to do this). A better<br />
way is to make the backups and store<br />
them offsite. That way even if a problem<br />
like a fire or flood affects the workplace,<br />
the backups will not be affected.<br />
Remote backup<br />
Today, there are a number of web-based<br />
services that will allow you to back<br />
up to their servers over the Internet.<br />
Some examples are Iron Mountain,<br />
Mozy, and Carbonite. Also many of<br />
the anti-virus companies are offering<br />
this service. The advantage is that the<br />
backup can be accessed anywhere at any<br />
time. These backups are also protected<br />
by redundant systems and password<br />
protection.<br />
One more thing—TEST!<br />
Cannot be stressed enough.<br />
The backup is only as good as the data<br />
on it. If, for any reason, the data is<br />
incomplete, corrupted, or missing, then<br />
it is useless. One great way to utilize an<br />
older computer is to clear all the data off<br />
it and install just the programs that you<br />
are backing up the data for. Then, take a<br />
copy of the backup and restore it to the<br />
computer. If there is a problem, you will<br />
know immediately. Since you are only<br />
using this to validate the backup, it is<br />
okay if the program runs slowly.<br />
There is great value in maintaining a<br />
backup of your data and systems. A little<br />
planning now can save a lot of time,<br />
effort, stress, and money later. ▪<br />
That’s how long it takes for the TM-T88V Point-of-Purchase Printer to print a receipt.<br />
It prints up to 7.9 inches per second. The TM-T88V delivers the same high speed for text<br />
or graphics, including two color logos. Speedy features include drop-in paper loading,<br />
auto cutter and auto status back messages. The cover is designed to ward off spills.<br />
Optional power supply case is available.<br />
Why wait for slow receipt printers when you can get<br />
fast so economically See the TM-T88V in real time<br />
at www.ricelake.com/receiptplease.<br />
800-472-6703<br />
www.ricelake.com<br />
mobile: m.ricelake.com<br />
www.ricelake.com | RICE LAKE MAGAZINE 21
Read this before you buy a cut-rate load cell<br />
continued from page 13<br />
The last alloy I will talk about is<br />
42CrMo. It is gaining popularity by<br />
some foreign manufacturers but is suitable<br />
to make high quality load cells. It<br />
is used because it is cheap, and as the<br />
performance is slightly better than 40Cr,<br />
manufacturers can say they are not using<br />
40Cr.<br />
Three types of stainless steel are used<br />
overseas to manufacture load cells. 17-<br />
4PH is the Mercedes of stainless alloys<br />
when it comes to load cell manufacturing.<br />
0Cr17N4Cu4Nb is the Asian<br />
equivalent to 17-4PH. At this time, there<br />
is only one mill in Asia that has the<br />
expertise to manufacture this stainless<br />
for load cell production. 2Cr13 is the<br />
designation of a type of alloy sometimes<br />
referred to as “stainless iron” or<br />
“imitation stainless steel.” It has slightly<br />
better corrosion resistance than 40Cr,<br />
but it certainly cannot be compared to<br />
17-4PH or 0Cr17N4Cu4Nb and is used<br />
because of cost.<br />
SURVIVOR® goes on a<br />
ferry ride<br />
Roy Hotchkiss, service manager at Badger Scale, Inc., Fond du Lac, Green Bay,<br />
Madison, Milwaukee and Wisconsin Rapids, WI, sent us these pictures. A 40 ft x 10 ft<br />
SURVIVOR truck scale is loaded on a ferry headed for Madeline Island, where it is<br />
being used for a project to lengthen the airport runway.<br />
There are currently two mills in Asia that<br />
extrude their aluminum close to a 2024<br />
grade. Their designation code is Y12, and<br />
this is an acceptable product. There are a<br />
large number of manufacturers that use<br />
recycled aluminum and, although commendable<br />
from an environmental and<br />
economic standpoint, this makes a poor<br />
load cell because of the impurities inherent<br />
in recycled aluminum.<br />
We have, on our shelf, ready to send, the largest selection<br />
of load cells in the world. NTEP, washdown, corrosive resistant,<br />
high temperature, high capacity. We stock over 50,000 load<br />
cells and can probably ship the one you need the same day<br />
you order it. Service, selection, and speed; they all work here.<br />
For more information go to www.ricelake.com/lcwm<br />
The metal used in manufacturing load<br />
cells is critical for a high quality load cell<br />
but the other processes and materials<br />
used are important as well and can also<br />
be “cheapened up” to make a load cell’s<br />
price almost irresistible. Proper heat<br />
treating, close tolerance machining and<br />
finishing, quality cable and strain gauges<br />
as well as a top notch quality control<br />
program and engineers with years of<br />
load cell design experience are all necessary<br />
in making a quality product. ▪<br />
800-472-6703<br />
www.ricelake.com<br />
mobile: m.ricelake.com
ON LOCATION<br />
ON LOCATION<br />
Kirby tells us half of CanmetENERGY’s<br />
tests are done for steelmakers and half are<br />
for Canadian coal mines that sell coking<br />
coal to steelmakers. “We test the coal<br />
they send us in the proportions they suggest.<br />
But instead of a 4 or 6 meter high<br />
furnace, we test it in a furnace a little<br />
over 1 meter high by adjusting conditions.<br />
Among other things, we are testing<br />
to find the force of the wall pressure on<br />
the coke oven, because most of the coke<br />
ovens in the world are old. If there is too<br />
operating today was built in 1902 and<br />
still has a future due to continuing facility<br />
renovation and oven rebuilds. The CAAA<br />
’90 has also resulted in the delaying of<br />
the deterioration cycle of coke ovens. The<br />
mechanisms that result in leakage are the<br />
same that cause failure of ovens, so when<br />
leakage is systematically eliminated, the<br />
result is longer battery life.<br />
Coke producers convert metallurgical or<br />
coking coal to coke by driving off small<br />
center of the oven, the entire mass has<br />
been carbonized. The incandescent coke<br />
mass is pushed from the oven and is<br />
then quenched with water or nitrogen to<br />
cool it before storage, or it is transferred<br />
directly to the blast furnace for use in<br />
iron making.<br />
Optimal operation of the blast furnace<br />
demands the highest quality of raw materials.<br />
The carbon content of coke therefore<br />
plays a crucial role in terms of its<br />
Brilliant solution:<br />
Jeff Wallace of GTR Scales Ltd.,<br />
in Arnprior, Ontario, supplied<br />
CanmetENERGY with a 920i® interfaced<br />
to a high resolution Sartorius<br />
base for their coke research lab in<br />
Ottawa. “They wanted to place a given<br />
amount of coke into a furnace and<br />
know when they had burnt off 200<br />
grams. Our sister company, DCH, did it<br />
by manufacturing an equal arm balance.<br />
One end has the sample of coke<br />
in the furnace and the other end rests<br />
on the Sartorius. As the coke reacts,<br />
the weight is transferred to the scale<br />
platform, thus showing us what is<br />
happening in the furnace.”<br />
24 RICE LAKE MAGAZINE | www.ricelake.com<br />
Global steel production is dependent on coal. Steel is an alloy based primarily<br />
on iron. As iron occurs only as iron oxides in the earth’s crust, the ores must be<br />
converted, or reduced, using carbon. The primary source of this carbon is coking coal.<br />
Nearly all of the coke produced in the world is fed into blast furnaces to make steel.<br />
World crude steel production was 1.2 billion tons in 2009. Around 761 million tons of<br />
coking coal was used in its production.<br />
Canada annually exports about 30 million tons of coking coal and uses an additional<br />
6 million tons domestically. On behalf of Canadian coal, steel, and metal producers,<br />
CanmetENERGY conducts research and development on metallurgical coal and coke<br />
technologies including energy recovery from coke production, metallurgical coke,<br />
bio-coke, and research into Canadian coal. CanmetENERGY’s coal evaluation, preparation<br />
and carbonization facilities are available to industry on a fee-for-service basis to<br />
assist with mine planning, marketing and economic investigations; to ensure low risk<br />
to expensive facilities during coking; and to evaluate the quality of coke, coal and other<br />
alternate fuels including biofuels for metallurgical purposes.<br />
Kirby Wittich, CanmetENERGY research engineer, explains, “On every continent there<br />
is metallurgical coal, junk coal and excellent coal. It depends on the particular seam. We<br />
are looking for very particular bituminous coals. A very quick bench-top<br />
test can be done. We grind the coal up and heat 1 gram of it to about 800⁰ C<br />
in a small crucible. After two minutes we take the lid off. If it is coking coal,<br />
we’ll see a little muffin. If it is not coking coal, it may look exactly as it did<br />
before—just powder.<br />
“Some coal may coke at a certain temperature, and another at a different<br />
range. When we mix those together we have a mixture that cokes at a wider<br />
temperature range. The price difference between coking coal and coal that<br />
would be used in a combustion furnace can be five to ten times. If a mine<br />
shows that they have coking coal, then often a huge investment is made to<br />
mine that coal.”<br />
There are two kinds of coke producers: integrated and merchant. Integrated<br />
coke producers are affiliated or owned by a steel manufacturer; merchant<br />
producers are those who produce coke to be sold on the open market.<br />
“The greatest thing about dealing with <strong>Rice</strong> <strong>Lake</strong><br />
is they really do customer service. Other scale manufacturers may<br />
have a five-year warranty as well, but if someone other than their service<br />
rep touches it, the warranty is nullified—and they want a purchase<br />
order number before they’ll show up!”<br />
much pressure on the oven wall, it will<br />
crack and leak, and they take many millions<br />
to fix.”<br />
Possibly the single biggest concern for<br />
all coke producers is their ability to meet<br />
the requirements of the Clean Air Act<br />
Amendments of 1990 (CAAA ’90). A<br />
cracked oven wall produces emissions,<br />
and emissions bring huge fines. Coke is<br />
produced in a coke battery that is composed<br />
of many coke ovens stacked in rows<br />
into which coal is loaded. The generally<br />
accepted guideline is that a battery of coke<br />
ovens has a 20- to 30-year life span. This<br />
premise does not hold up when the merchant<br />
coke producer segment is analyzed.<br />
The average age of U.S. merchant batteries<br />
is 40 years. The reason for this is partly<br />
the merchant mentality. An integrated<br />
producer views their coke plant as a disposable<br />
asset, producing raw material. In<br />
the end, for an integrated producer, coke<br />
is a “make-or-buy” decision.<br />
The merchant producer knows that his<br />
battery is his livelihood and will take extraordinary<br />
steps to maintain his facility.<br />
For example, the oldest merchant battery<br />
Jeff Wallace, GTR Scales Ltd.<br />
hydro-carbon molecular units to leave<br />
almost pure carbon. The physical properties<br />
of coking coal cause the coal to soften,<br />
liquefy, then resolidify into hard porous<br />
lumps when heated in the absence of air.<br />
Coking coal must also have low sulphur<br />
and phosphorous contents.<br />
The coking process takes place over long<br />
periods of time—between 12-36 hours<br />
in coke ovens. The heat is transferred<br />
from the heated brick walls into the coal<br />
charge. From about 375°C to 475°C, the<br />
coal decomposes to form plastic layers<br />
near each wall. At about 475°C to<br />
600°C, there is a marked evolution of tar<br />
and aromatic hydrocarbon compounds,<br />
followed by resolidification of the<br />
plastic mass into semi-coke. At 600°C to<br />
1100°C, the coke stabilization phase begins.<br />
This is characterized by contraction<br />
of coke mass, structural development<br />
of coke, and final hydrogen evolution.<br />
During the plastic stage, the plastic<br />
layers move from each wall toward the<br />
center of the oven, trapping the liberated<br />
gas and creating gas pressure build-up,<br />
which is transferred to the heating wall.<br />
Once the plastic layers have met at the<br />
effect in the furnace and on the hot metal<br />
quality. A blast furnace fed with high<br />
quality coke requires less coke input and<br />
results in higher quality hot metal and<br />
better productivity. Overall costs may<br />
be lower, as fewer impurities in the coke<br />
means smaller amounts of flux must be<br />
used. Coke producers use widely differing<br />
coals and employ many procedures<br />
to enhance the quality of the coke and to<br />
enhance the coke oven productivity and<br />
battery life.<br />
GTR Scales’ unique 920i® and Sartorius<br />
application for CanmetENERGY is<br />
helping create the cleanest, most efficient<br />
coke for the steel-making industry, ensuring<br />
blue skies in the future. ▪<br />
References:<br />
Dusel, Martin, 4, March 2008, “The Coke Crisis.”<br />
www.accci.org/Dusel.pdf<br />
Ailor, David C, 8, Oct. 2003,”Principal<br />
Environmental Issues Facing the U.S. Coke Industry”<br />
www.accci.org/Ailor.pdf<br />
www.canmetenergy.gc.ca<br />
www.worldcoal.org/coal/uses-of-coal/coal-steel<br />
www1.eere.energy.gov/industry/steel/pdfs/<br />
roadmap_chap2.pdf<br />
www.ricelake.com | RICE LAKE MAGAZINE 25
inside rlws<br />
Bruce Johnson, customer service manager, is a perfect example of<br />
how <strong>Rice</strong> <strong>Lake</strong> has grown to become an international company—while still<br />
maintaining the personal customer service ethic Donald B. Johnson insisted<br />
on from the beginning.<br />
Bruce has been with <strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong> 37 years<br />
and counting. “There were fifteen employees when I<br />
came here in October of 1973. I was interested in<br />
electronics. My hobby was collecting juke boxes<br />
from the ’50s. Electronic scales were in their infancy<br />
then, and we took on a line. We went to electronics<br />
school. Don signed us up for an apprenticeship<br />
program with the state. Since they didn’t have any<br />
idea of what training was needed for a scale technician,<br />
he had to help set up the curriculum<br />
Bruce in the 1970’s answering customer questions.<br />
“Back then everyone did a little of everything. I<br />
even worked on the first electronics catalog. It was<br />
mimeographed. I called vendors, set up deliveries, checked orders, wrote specs, and took calls from customers.<br />
I developed an order pad with little boxes to check. They called it ‘Bruce’s Form.’<br />
“Part of the benefit of working with Mark Sr. is that he imparted his customer service philosophy. You had that experience<br />
back then. We had a little room where we would test products before they went out. We were so paranoid<br />
that something would go out and fail.<br />
“I guess I built a reputation for working with customers. I take any calls where there is a question that can’t be<br />
resolved. I am here to get the ball back in play.” When someone has a problem, Bruce can usually help.<br />
“I worked out our Customer Order Action Report (COAR). We came up with this because<br />
it was something we had to do. Now it is required by ISO, but we were already doing<br />
it. It’s another one of ‘Bruce’s Forms’. It has three parts. First, what did the customer<br />
say Second, what did we do to get back on the road And third, why did this<br />
happen and what can we do so it doesn’t happen again<br />
“We pick a project where errors occur and turn it around. Every once in<br />
a while you feel good because you find a gem. We might find we have<br />
two similar parts stored in bins next to each other. One of them has<br />
to move. In another case, we wanted to improve our order-taking,<br />
especially getting the correct shipping address. We had MIS<br />
change our software so that now we enter the zip code and the<br />
system brings up the city and state. Then we take the address.<br />
And we always read the contract back.”<br />
Chris Olsen, inside sales manager, adds, “Bruce is the level head<br />
for the sales and service departments. No matter what the<br />
issue, or how emotional, he always seems to find a way to help<br />
the customer in a manner that is beneficial to all parties<br />
involved. The bottom line is he knows the customer is the<br />
priority and works toward the goal of satisfying them.<br />
“Over the years Bruce has become the jack-of-alltrades<br />
with handling sales calls, online chats,<br />
warranty claims, the COAR process, and<br />
working on the root causes of our errors<br />
so we continually improve.” ▪<br />
Truck<br />
scales<br />
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truckin’<br />
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800-472-6703<br />
www.ricelake.com<br />
mobile: m.ricelake.com<br />
26 RICE LAKE MAGAZINE | www.ricelake.com
230 W. Coleman Street<br />
<strong>Rice</strong> <strong>Lake</strong> WI 54868<br />
Change Service Requested<br />
Presort Standard<br />
U.S. Postage<br />
Paid<br />
<strong>Rice</strong> <strong>Lake</strong><br />
<strong>Weighing</strong> <strong>Systems</strong><br />
Look around you. Scales are everywhere.<br />
<strong>Rice</strong> <strong>Lake</strong> <strong>Weighing</strong> <strong>Systems</strong> is too. Always<br />
developing new ways to weigh it, label it, move it,<br />
and get it out your door, <strong>Rice</strong> <strong>Lake</strong> knows weighing, big,<br />
small, and everything in-between. Off the shelf or custom made<br />
just for you, we respond and deliver—like no one else can.<br />
800-472-6703<br />
www.ricelake.com<br />
mobile: m.ricelake.com