Method for connecting electrolytic aluminum anode without pouring

Abstract

The invention provides a method for connecting an electrolytic aluminum anode without pouring. In the method, a steel talon is manufactured into a wedge shape with a big end down cross section; the cross section of an anode carbon block is made into a boss shape, and a dovetail through slot is formed in the middle of the upper plane of the anode carbon block along the vertical direction; after the steel talon is put in the dovetail through slot, steel plates with the same number and same thickness are filled in gaps on two sides of the steel talon correspondingly, so that the two sides of thesteel talon and the copper plates are closely jointed, and the two steel plates and the anode carbon blocks on two sides are closely jointed. The pouring connecting method of melting ferro-phosphorusis changed into a wedge plate compacting connecting method, an intermediate frequency furnace for melting ferro-phosphorus and pressure-disengaging equipment for disengaging a phosphorus iron hoop bypressure are canceled, so that the equipment investment is reduced, the labor intensity is reduced, and the working environment is improved; the profile steel talon is put in the dovetail through slot of the carbon block and compacted by a wedge-shaped stainless steel plate without pouring, so the operation is easy and convenient; and the conventional mode of combining the anode steel talon and the anode carbon block is changed, a transitional connecting mode of combining copper and carbon is adopted, so that the conductive contact area is enlarged, and the anode conductive drop can be effectively reduced.

Description

technical field [0001] The invention relates to a method for connecting an anode carbon block and a steel claw in electrolytic aluminum production. Background technique [0002] In the production of electrolytic aluminum, the anode is used as one of the raw materials for production, and the consumption per ton of aluminum is very large. In order to meet the needs of production, the general electrolytic aluminum factories at home and abroad use molten phosphorus iron juice to pour the anode carbon block and steel claw together. The connection method adopted has high energy consumption, high cost per ton of aluminum, high labor intensity and poor working conditions. During the use of the anode, the current is conducted to the anode carbon block through the poured ferrophosphorus. Since the contact between the ferrophosphorus and the anode carbon block is not good, the voltage drop of the entire conductive device is increased, and the energy consumption is increased. Simultan...

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Problems solved by technology

The connection method adopted has high energy consumption, high cost per ton of aluminum, high labor intensity and poor working conditions.

During the use of the anode, the current is conducted to the anode carbon block through the poured ferrophosphorus. Since the contact between the ferrophosphorus and the anode carbon block is not good, the voltage drop of the entire conductive device is increased, and the energy consumption is increased.

At the same time, after the anode carbon block is used, when cleaning the steel claws, it is necessary to take off the phosphorous iron rings poured on the steel claws, which is labor-intensive and time-consuming, and pollutes the environment

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