Optical telemetry for aluminium reduction plant bridge cranes

Details Optical telemetry for aluminium reduction plant bridge cranes Optical telemetry for aluminium reduction plant bridge cranes

G - Physics

08

C

325/1, 341/1.1

G08C 23/00 (2006.01) B66C 13/18 (2006.01) B66C 13/40 (2006.01) B66C 13/48 (2006.01) C25C 1/12 (2006.01) C25C 3/06 (2006.01) C25C 3/20 (2006.01) G05B 15/00 (2006.01) G08C 17/00 (2006.01) G08C 19/36 (2006.01)

Patent

CA 1080307

ABSTRACT OF THE DISCLOSURE It has hitherto been impractical to use a computer to optimise the control of a plurality of operating stations in a hot metal handling operation such as an aluminum reduction pot line because of the difficulty of communica- ting between the computer and the pots. A hard wire system is impractical in a large operation involving numerous pots, furnaces, or the like. The invention solves this problem by taking advantage of the fact that the pots, furnaces, or the like are serviced by a crane, usually an overhead crane on rails, which adds raw materials to the pots, furnaces, or the like and removes molten metal. The crane is provided with a data acquisition unit which can measure various process variables such as weight, temperature, etc. and an optical telemetry link which provides two-way communication between the crane and the computer.

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