sPeCIAL ArABAL - ALUMINIUM-Nachrichten – ALU-WEB.DE

sPeCIAL ArABAL
ALUMINIUM INdUstry It‘s IN a pure the waste GULf of time
... if you make do with anything less!
for FTC 1 as well as FTC 2 and leave site with
the both FTC’s handed over to the client, FTC
2 in full operation and FTC 1 ready for hot
fumes.
first ‘hot fumes in’
FTC 2: Dry-out of ABF 2 started in the beginning
of October 2012 and continued for about
four weeks. During this time, FTC 2 was operated
in bypass mode and only provided draft
to the ABF, but no fumes were treated. On 5
December, the first hot pollutant containing
fumes were treated by FTC 2. At this time, the
FTC was operated with only two baghouses
and one MEF because of the low amount of
fumes.
to sub-systems for which, after careful inspection,
a list of punch list items was prepared.
Once a sub-system had been completed,
the client was invited for a walk-down to
identify any additional punch list items and
to verify the punch items that had been resolved.
When all ‘A’ punch items had been resolved,
the sub-system gained the purple-tag
status (mechanical completion), after which
the commissioning could start. During commissioning,
the remaining ‘B’ and ‘C’ punch
list items were resolved and after a second
walk-down with the client, the sub-system
was grey-tagged (practical completion) and
officially handed over to the client.
Along with the handover of the FTC itself,
also an extensive handover document package
was prepared including construction
and engineering documents,
specifications, as well as
test procedures, commissioning
documents, and manuals. Once
these documents and the punch
lists had been signed-off by the client,
the FTC was officially handed
over and operated by Ma’aden
employees from that moment on.
All the very latest information in a single publication,
10 times a year, excellently researched,
direct from the source!
Test it now!
YES, I would like to receive
regular information on the
latest trends and technologies!
Please send me a sample copy at no
obligation.
I wish to subscribe to
INTERNATIONAL ALUMINIUM JOURNAL
The subscription price is EUR 297.00 a
year incl. p&p and VAT (Outside Europe:
US$ 393.00).
Fig. 5: DC lock-out Tag-out system with equipment locks (red)
and personal locks (green)
Excess air had to be withdrawn through the
ABF dilution air damper to ensure sufficient
airflow at the MEF. This situation continued
for about four weeks and the operation became
more stable when also the second and
third fires of the ABF were taken into operation.
Currently, FTC 2 is operation at full capacity
and performing excellent. The fresh alumina
rate of about 1.5 tph and carbon contents
are well below maximum acceptable level.
FTC 1: Because ABF 1 was not ready to
start producing anodes when the cold commissioning
of FTC 1 was finished, hot commissioning
of FTC 1 took place in June 2013.
Like the cold commissioning, the hot commissioning
of FTC 1 went smooth and could be
completed within one week.
Guarantee measurements
At the time this article is being issued,
the guarantee measurements
for FTC 2 just have taken place.
Guarantee measurements of FTC
1 will take place when ABF 1 is
running stable with all four fires in operation.
Currently, only two fires are in operation of
which one is for dry-out.
Conclusions
The start-up of both FTC’s on Ma’aden ABF
1 and ABF 2 was successfully completed to
the satisfaction of all parties. The FTC incorporated
new design features from Danieli
Corus that enhance the safety and operability,
maintainability and emissions performance. It
was a clean start-up with the new furnace,
thanks to the close coordination of DC, Inbesco
and Bechtel during hot and cold commissioning.
There were minimal by-pass events
which meant emissions were maintained even
during the commissioning phases.
INTERNATIONAL ALUMINIUM JOURNAL is published
monthly with double editions in January/February and
in July/August. Subscriptions are initially valid for a year.
Company
Name, first name
Street, No.
Postcode, town
Tel.
Fax
Email
Q The subscription price is to be paid by credit card:
Q VISA
Q American Express
Q Euro-/Mastercard
Number
Cardholder
Valid until
Q The price is to be debited from our
account (only possible within Germany)
Bank
Bank code
handover
Handover to the client was organised through
an extensive procedure which involved mechanical
as well as practical completion. Within
this procedure, both FTC’s were divided in-
Authors
Peter Klut is senior process engineer at Danieli
Corus B.V., Velsen-Noord, The Netherlands
Jan de Weerdt is process engineer at Danieli Corus
B.V., Velsen-Noord, The Netherlands
Account no
Q The price will be remitted on receipt
of the invoice
Date
Signature
ALUMINIUM · 9/2013
Subscription service
vertrieb@giesel.de
Fax +49 (0)511 7304-233