A split-type filling block continuous prebaked anode carbon block

Abstract

The invention discloses a continuous prebaked anode carbon block with split filling blocks. The continuous prebaked anode carbon block comprises a carbon block body, wherein carbon bowls are formed inthe carbon block body; the carbon bowl filling blocks are movably disposed in the carbon bowls; and the upper end face of each carbon bowl filling block in each carbon bowl flushes with the upper endface of the carbon bowl. The continuous prebaked anode carbon block disclosed by the invention has the beneficial effects that through fitting with a casting-mechanical compound steel claw, a prebaked anode can be used continuously; time spent on connection of a new anode carbon block is short and labor strength is low; use is convenient; an adhesion area between the new and old carbon blocks isincreased; connection strength of the carbon blocks is enhanced; overall resistance of the anode carbon block is reduced; production cost is low; with the carbon block body and the split filling blocks disclosed by the invention, production efficiency and a product percent of pass can be increased, unit product energy consumption and a rate of spoiled products are reduced, transportation, hoistingand installation are convenient and expense cost of each link is greatly reduced; and economic benefits and practical values are very high.

Description

technical field [0001] The invention relates to a prebaked anode carbon block for an aluminum electrolytic cell, in particular to a split-type filling block continuous prebaked anode carbon block. 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. In the production process of electrolytic aluminum, the carbon anode and the...

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Problems solved by technology

[0008] 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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