Process for manufacturing raw anode

A manufacturing process and raw anode technology, applied in the field of raw anode manufacturing technology, to achieve the effect of ensuring product quality

Active Publication Date: 2009-07-22
GUIYANG AL-MG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process does not need to crush the raw material too finely, and will not change the physical properties of the raw material, so a

Method used

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  • Process for manufacturing raw anode

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Embodiment Construction

[0013] Embodiments of the present invention: as attached figure 1 As shown, the petroleum coke particle material, powder material, residual electrode and roasted powder are weighed by the batching scale and then added to the assembly screw. After preliminary mixing in the assembly screw, they are added to the preheating screw; crush the raw material to a certain particle size , generally the maximum batching size of the particle material in the waste raw anode block. When the maximum batching size of the raw crushing is 4mm, the crushing particle size of the raw crushing is 4-6mm; when the maximum batching particle size of the raw crushing is 12mm, the crushing particle size of the raw crushing It is 12-15mm. After being measured by the batching scale, it is directly added to the preheating screw; the petroleum coke particles, powder materials, scraps, roasted crushed and raw crushed materials added to the preheated screw are passed through the heat medium oil at 270-290 °C, a...

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Abstract

The invention discloses a technique for preparing a green anode, comprising the steps as follows: firstly, green scraps are crushed to a certain granularity which is generally more than the maximum composition granularity of the green scraps; the crushed green scraps are measured and added in a pre-heating procedure; in the pre-heating procedure, the green scraps are mixed with petroleum coke particle material, powder material, residual electrode and baked scraps which are measured; after sufficiently pre-heated and mixed to a certain temperature, the materials are discharged to a kneading procedure where asphalt is added; and the asphalt and the materials are kneaded at a certain temperature and discharged in a paste and cooled, thus obtaining the green anode product by forming treatment. The process changes the adding point of the green scraps from kneading procedure into the pre-heating procedure; furthermore, the granularity of the added green scraps is greater, thus solving the problem that the green scraps are added after being crushed to be too fine in the prior art; and the granularity composition of the crushed green scraps is not changed and the physical property thereof is the same with the original property, thus effectively ensuring the quality of the green anode product.

Description

technical field [0001] The invention relates to a manufacturing process of a raw anode. Background technique [0002] Green anode manufacturing is an important part in the production of prebaked anodes in aluminum electrolysis production systems. Generally, various materials such as petroleum coke particles, powder materials, anode residues, roasted crushed, raw crushed, and asphalt are used as raw materials, and raw anodes are produced through batching, preheating, kneading, paste cooling, and molding. In the current production process, petroleum coke particles, powder materials, residual electrodes, and roasted chips are measured and preheated, and then enter the kneading process; after asphalt is measured, it is generally mixed with dry materials in the kneading process; raw materials containing asphalt After the crushing is measured, it is generally added in the kneading process. After kneading at a certain temperature, the material is discharged into the paste cooler ...

Claims

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Application Information

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IPC IPC(8): C25C3/12C04B35/532
Inventor 龚石开肖珮环
Owner GUIYANG AL-MG DESIGN & RES INST
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