Aluminum electrolytic end cell emergency short-circuit device

Abstract

The invention discloses an aluminum electrolytic end cell emergency short-circuit device. According to the invention, anode guide rods (1) are connected to one ends of long aluminum busbar soft bands (2). The other ends of the long aluminum busbar soft bands (2) are connected with a cuboid busbar (3). The cuboid busbar (3) is connected with a short-circuit block (4) through a short aluminum busbar soft band (5). The short-circuit block (4) is connected with a fake column busbar block (7). There are respectively 4 sets of the anode guide rods (1) and 4 sets of the long aluminum busbar soft bands (2). The 4 sets of anode guide rods (1) are respectively connected with one ends of the long aluminum busbar soft bands (2). The anode guide rods (1) are welded with a plurality of long aluminum busbar soft bands (2) on a vertical direction. The short-circuit block (4) and the fake column busbar block (7) are connected through a press-fit bolt. With the device provided by the invention, accidents of cell-peripheral and cell-bottom busbar thrust caused by end cell leakage at various electrolysis areas can be well solved. The cell is short-circuited fast, such that the system powering can be recovered, and other electrolytic cell normal production operation can be recovered.

Description

technical field [0001] The invention relates to a short-circuit device for an aluminum electrolytic cell, in particular to a short-circuit and power-off device for rapidly short-circuiting the cell when the cathode bus bar of the aluminum electrolytic cell is damaged, and belongs to the technical field of short-circuit and power-off for the aluminum electrolytic cell. Background technique [0002] The electrolytic cell is the main equipment of the aluminum plant. An electrolytic series generally has more than 200 electrolytic cells connected in series. When one of the electrolyzers cannot maintain normal production, it needs to be short-circuited in order to withdraw from production for overhaul, which is called shutdown. The overhauled electrolyzer is put into energized operation, which is called slotting. When the electrolytic cell is stopped and opened, it involves the operation of converting a large current of hundreds of kiloamperes from one part of the busbar to anot...

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Problems solved by technology

In the event of an unplanned shutdown, the series must be powered off to repair the damaged bus bar of the slot, because usually the bus bar is the "only way" for the current, and the repair is usually carried out by welding the aluminum bus bar to allow the current to pass through the short circuit → this The line of tank cathode bus bar→downstream tank column bus bar→downstream tank anode line was restored, but due to the occurrence of site leaking tank accidents, the working environment was harsh and dangerous, the labor intensity was huge, and it was quite difficult to repair. If the power outage lasts too long, it will affect the production of other tanks Running, even causing other slots to "dead slot" in severe cases

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