Continuous pre-baked anode carbon block with split type independent carbon bowl and ultra-long filling block structure

Abstract

The invention discloses a continuous pre-baked anode carbon block with a split type independent carbon bowl and ultra-long filling block structure. The continuous pre-baked anode carbon block comprises a carbon block body, wherein carbon bowl assembly connecting pits are formed in the carbon block body, carbon bowl assemblies are arranged in the carbon bowl assembly connecting pits, carbon bowls are arranged on the carbon bowl assemblies, mechanical steel claw connecting ring grooves are formed in the positions, at the bottoms of the carbon bowls, of the charcoal bowl assemblies, and ultra-long carbon bowl filling blocks are movably arranged in the parts, on the carbon bowl assemblies, of the carbon bowls. The continuous pre-baked anode carbon block cooperates with casting-mechanical steelclaws so that the continuous use of a pre-baked anode can be realized, the time for connecting a new anode carbon block is short, the labor intensity is low, the use is convenient, the filling rate of the continuous pre-baked anode carbon block is improved, the connection strength of the carbon block is improved, the whole resistance of the anode carbon block is reduced, the service life of the single carbon block is prolonged, the production cost is low, moreover, manufacturing, roasting, transportation and use of the carbon block body, the split type independent carbon bowls, and the ultra-long filling blocks are all simple, and the characteristics of being high in manufacturing finished product rate, low in expense is low, low in cost and the like are achieved.

Description

technical field [0001] The invention relates to a prebaked anode carbon block for an aluminum electrolytic cell, in particular to a split-type independent carbon bowl and a continuous prebaked anode carbon block with a superlong filling block structure. Background technique [0002] Modern electrolytic aluminum processes use prebaked anodes to produce electrolytic aluminum. When the electrolytic cell is working, the anode assembly is composed of aluminum guide rod, explosion disc, anode steel claw, phosphorus pig iron casting layer and prebaked anode carbon block. The prebaked anode carbon block is generally a cuboid with a stable geometric shape. It uses stone tar and pitch coke as the aggregate and coal tar pitch as the binder. It has different sizes according to the size of the electrolytic cell current and the process. The current density is generally 0.68~0.9A / cm 2 Within the scope, the service life of each carbon block is generally about 30 days. [0003] In the pro...

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Problems solved by technology

[0009] In summary, the prior art has the following technical defects: 1. The existing prebaked anode production of electrolytic aluminum causes huge loss of heat energy when replacing the anode, which takes time to replace the anode and causes waste of electric energy. The conditions are extremely bad, the waste of carbon materials is large, and the environment is seriously polluted; 2. Chinese patent 201710088066.4 discloses the method and structure of the prebaked anode aluminum electrolysis online connection anode, when the old carbon block is to be connected with the new carbon block due to the The carbon bowl is hollow, and the bonding area on the old carbon block is small, which leads to the weak bonding between the old carbon block and the new carbon block. After bonding, the overall strength of the anode carbon block is poor, and the conductive contact is small. After bonding, the anode carbon block The overall resistance of the block increases, the voltage drop increases, the energy consumption of electrolysis is large, and the production cost is high; 3. The upper and lower parts of the existing anode carbon block have a prebaked anode carbon block with multiple raised parts, which is difficult to form, roast and transport , high energy consumption, low yield and high cost

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