Dust Control Handbook for Industrial Minerals Mining and Processing

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Figure 10.17. Layout demonstrating dispersed wind barriers.REFERENCESAmponsah-Decosta F, Annegarn HJ [Jan.-March 1998]. Assessment of fugitive dustemissions from an opencast coal mine. J of the Mine Vent Soc of South Africa 51(1):5–11.Armbrust DV, Dickerson JD [1971]. Temporary wind erosion control: cost effectivenessof 34 commercial materials. J of Soil and Water Cons 26(4):154–157.Bagnold RA [1960]. The physics of blown sand and desert dunes. London: Methuen &Co. LTD.Blue Skies Campaign, Arizona [2010]. Quick reference dust control guide. ArizonaDepartment of Transportation, Air Quality Planning, Research, Final Project Reports,Dust Control Training Templates BlueSkies Summary Sheet.[http://www.azdot.gov/mpd/air_quality/pdf/Blueskies.pdf]. Date accessed: December 3,2010.Caterpillar, Inc. [2008]. 785 mining truck specifications.[http://www.cat.com/cda/layout?m=169215&x=7&f=227128]. Date accessed: October12, 2008.Haul Roads, Stockpiles, and Open Areas 267
Chekan GJ, Cecala AB, Colinet JF [2003]. An evaluation of cab filtration andpressurization systems: two case studies. Proceedings of the Environment, Safety &Health Forum and Expo, Alexandria, VA: National Stone, Sand, and Gravel Association,pp. 114-129.Chekan GJ, Colinet JF [2003]. Retrofit options for better dust control—cab filtration,pressurization systems prove effective in reducing silica dust exposures in older trucks.Aggregates Manager 8(9):9–12.Chepil WS [1956]. Influence of moisture on erodibility of soil by wind. Soil Sci Soc ofAmer Proc 20(2):299–292.Chepil WS [1957]. Erosion of soil by wind. In: 1957 Yearbook of Agriculture, pp. 308–314. U.S. Department of Agriculture.Chepil WS [1958]. Soil conditions that influence wind erosion. U.S. Department ofAgriculture Technical Bulletin 1195.Chepil WS, Woodruff NP [1955]. How to reduce dust storms. Agricultural ExperimentStation Circular 318. Kansas State College of Agriculture and Applied Science,Manhattan, Kansas.Chepil WS, Woodruff NP, Siddoway FH, Fryrear DW, Armbrust DV [1963]. Vegetativeand nonvegetative materials to control wind and water erosion. Soil Sci Soc of Amer Proc27(1):86–89.Cole CF, Zapert JG [1995]. Air quality dispersion model validation at three stonequarries. Prepared for National Stone Association, Washington, D.C.Countess Environmental [2006]. WRAP fugitive dust handbook. WGA Contract #:30204–111. Western Governors Association, Denver, Colorado.Cowherd C, Grelinger MA [1996]. High-wind failure of soil moisture as a wind erosioncontrol. Air and Waste Management Association, 89th Annual Meeting & Exhibition,Nashville, Tennessee. Paper No. 96-TP40.04. Air & Waste Management Association.Cowherd C, Grelinger MA [1997]. Dust control for prevention of vehicle accidents.Proceedings of the 1997 Air & Waste Management Association's 90th Annual Meetingand Exhibition, Toronto, Ontario, Canada.Cowherd C, Mulesky GE, Kinsey JS [1988]. Control of open fugitive dust sources.Environmental Protection Agency Contract No. 68–02–4395, Midwest Research InstituteProject No. 8985–14, Research Triangle Park, North Carolina: U.S. EPA, Office of Air &Radiation, Office of Air Quality Planning and Standards.Diouf B, Skidmore EL, Layton JB, Hagen LJ [1990]. Stabilizing fine sand by addingclay: Laboratory wind tunnel study. Soil Tech 3:21–31.268 Haul Roads, Stockpiles, and Open Areas
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Report of Investigations 9689Dust C
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FUNDAMENTALS OF DUSTCOLLECTION SYST
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Minimizing Field Fits and Welds ...
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Recommendations for Proper Wet Dril
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CONTROL TECHNOLOGIES FOR FILLING 50
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Effective Filtration ..............
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ILLUSTRATIONSFigure 1.1. Relationsh
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Figure 3.2. The air and water flow
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Figure 9.5. Problem created by heat
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UNIT OF MEASURE ABBREVIATIONSUSED I
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Robert J. Franta, Quotation Enginee
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silica. Quartz is the most common s
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DUST CONTROL HANDBOOK FOR INDUSTRIA
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CHAPTER 1: FUNDAMENTALS OFDUST COLL
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The shape of particles affects how
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EXHAUST SYSTEMS DESIGNAll exhaust s
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stripping, which allows workers to
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When using the air quantities in Ta
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X = distance in feet from the face
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Checklist for Hood EffectivenessThe
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A major disadvantage of the high-ve
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A common misconception when designi
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Avoiding Mitered Elbows Greater Tha
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Figure 1.13. Depiction of the horiz
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Figure 1.14. Typical design of grav
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Baghouse CollectorsBaghouse dust co
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Table 1.2. Emission factors for cru
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Figure 1.17. Typical design of a me
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Reverse Jet (Pulse Jet) CollectorsR
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Figure 1.20. Cartridge collector wi
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Wet scrubbers are particularly adva
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Electrostatic precipitators normall
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may be related to specific applicat
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times. When considering the depth o
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Figure 1.25. Demonstration of how a
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Figure 1.26. A typical fan performa
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Fan TypesThere are two basic types
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Figure 1.30. Typical centrifugal fa
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Figure 1.32. Typical roof ventilato
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The vast majority of dust particles
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Table 2.1. Particle/droplet size in
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Air Atomizing NozzlesAir atomizing
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Hydraulic Flat Fan NozzlesFigure 2.
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for dust knockdown or suppression,
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Nozzle MaintenanceFigure 2.14. Typi
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Accidental DamageInadvertent harm t
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NDT Educational Resource Center, Io
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78 Wet Spray SystemsDUST CONTROL HA
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contains a piston which delivers ha
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produce an increase in the penetrat
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Dry DrillingDry drilling is accompl
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Circular ShroudIn contrast to the u
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The collector airflow has a more su
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Air-Blocking ShelfThe air-blocking
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dust emissions from mast lowering,
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This simple procedure of creating a
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Figure 3.15. Air ring seal used to
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Figure 3.17. Illustrations showing
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unsubstantiated due to the inconsis
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safety considerations may preclude
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Figure 3.22. A filtration unit, loc
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Miller S, Emerick JC, Vogely WA [19
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USBM [1995]. The reduction of airbo
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110 Drilling and BlastingDUST CONTR
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Wet Control MethodsPREVENTION AND S
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Figure 4.2. Examples of compressive
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Figure 4.5. Illustration of a dry (
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Figure 4.6. Illustration of a dry (
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Wet dust control methods for crushi
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Work Practices to Minimize Dust Exp
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Some specialty grinding operations
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should be frequently inspected for
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Open screen decks slowly to allow i
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CHAPTER 5: CONVEYING AND TRANSPORTT
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Figure 5.3. Basic depiction of mate
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that the material falls before land
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Figure 5.10. Skirtboard used within
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CarrybackMaterial that sticks or cl
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CONVEYOR DESIGN AND MAINTENANCE ISS
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Figure 5.15. Conveyor transfer encl
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High-volume, high-pressure sprays s
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Figure 5.19. Depiction of a bucket
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Figure 5.21. Depiction of two types
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Figure 5.25. Venturi eductor utiliz
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CHAPTER 6: BAGGINGThis chapter disc
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caused during manufacturing, includ
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Overall PerforationsThe use of over
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Figure 6.5. Open-top bag being load
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Bagging operators should be aware t
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Figure 6.8. Exhaust hood to capture
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In the original design, a single no
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The OASIS is a relatively simple de
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Figure 6.13. Bag storage shelves sh
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Figure 6.14. Bag and belt cleaner d
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other industrial application using
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The robotic arm automatic palletize
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For many years, this plastic wrappi
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warehouse location until a later ti
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used successfully to perform this c
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CHAPTER 7: BULK LOADINGDuring the b
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Figure 7.2. Loading spout discharge
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Cascading Loading SpoutFigure 7.5 i
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a seal at the entry and exit points
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REFERENCESBiere G, Swinderman RT, M
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200 Bulk LoadingDUST CONTROL HANDBO
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many years, as well as some new and
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Figure 8.2. Air spray manifold desi
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Figure 8.3. Test subject wearing po
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Spills of product material are a co
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epetitive dust leaks should not sim
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Effective Upward Airflow PatternThe
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Figure 8.8. Open-structure design c
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Page 247 and 248: Figure 8.12. Increase in worker’s
Page 249 and 250: In other cases, an operation may wa
Page 251 and 252: Cecala AB, O'Brien AD, Pollock DE,
Page 253 and 254: 224 Controls for Secondary SourcesD
Page 255 and 256: where C o = outside respirable dust
Page 257 and 258: minimal improvement in the cab's ai
Page 259 and 260: RECOMMENDATIONS FOR FILTRATION/PRES
Page 261 and 262: Effective FiltrationFigure 9.4. Res
Page 263 and 264: average decay times were between 16
Page 265 and 266: Figure 9.6. Filtration unit showing
Page 267 and 268: This table highlights a number of c
Page 269 and 270: NIOSH [2001b]. Technology news 486:
Page 271 and 272: DUST CONTROL HANDBOOK FOR INDUSTRIA
Page 273 and 274: upon the wind velocity (or disturba
Page 275 and 276: Maximum size is the largest particl
Page 277 and 278: Figure 10.4. Use of end-dumping wit
Page 279 and 280: conditions. Performance of each of
Page 281 and 282: A water truck, used to apply water
Page 283 and 284: Surfactants work by reducing the su
Page 285 and 286: which differed for the various site
Page 287 and 288: Figure 10.9. Self-tarping dump truc
Page 289 and 290: percent [Fryrear and Skidmore 1985]
Page 291 and 292: Figure 10.12. The armoring process
Page 293 and 294: A current method of stockpile forma
Page 295: Figure 10.15. Demonstration of how
Page 299 and 300: Midwest Research Institute [1981].
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Page 304 and 305: GLOSSARYAbrader. An implement used
Page 306 and 307: Carryback. Material that sticks or
Page 308 and 309: End-dumping. A process of spreading
Page 310 and 311: Open structure building design. A p
Page 312 and 313: Table bushing. A bushing used to se
Page 314: Delivering on the Nation’s promis
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