May 4 2007
Stímir has entered into a contract with Alcan Iceland to develop and install an automatic Stem Index Marking System (“SIMS”) for Rodded Anodes.
The SIMS will be installed at the rodded anode storage area and will replace the Stímir-supplied marking system currently in use in the Rodding Plant.
The process is initiated by the potrooms requesting an anode for a specific cell. By reference to an existing Oracle database, the correct anode type is identified and the rodded anode is automatically routed from the appropriate storage roller conveyor into the SIMS.
Alcan Iceland, in common with most smelters, does not have a comprehensive anode tracking system and therefore the primary system for tracking rodded anodes is by counting. This is backed-up by reference to the alphanumeric code embossed into the anode top surface, which is read at the SIMS using computer vision and confirmed by reference to the Oracle database.
Using Stímir’s powder chalk marking technology, two lines will be marked on the anode stem. The first line is a fixed index line, always marked at the same height from the top of the anode, and provides a manual stand-by option. The second line is marked at the correct position for the pot stall in which it is to be inserted, this data being available in realtime from the Oracle database. Concurrently, a bar code and six-digit numeric code identifying the potroom, cell, and stall is laser-engraved marked onto a coated area of the stem.
Immediately following line and barcode marking a check-system reads the lines and barcode to ensure correct placement and readability. The marked rodded anode is then automatically delivered to the correct potroom.
Stimir hf. is a solution provider to the primary aluminium industry. All aspects of design and fabrication are undertaken at Stimir’s own facilities, ensuring total quality control and on-time delivery.