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Continuous preheating and discontinuous mixed kneading production process

A production process and kneading technology, which is applied in the field of aluminum electrolysis, can solve problems such as oil leakage, potential safety hazards, and low preheating temperature of dry materials, and achieve the effects of improving anode quality, eliminating potential safety hazards, and high reliability

Pending Publication Date: 2018-06-22
GUIYANG AL-MG DESIGN & RES INST
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  • Abstract
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  • Claims
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Problems solved by technology

However, according to the domestic production status, the preheating pot of the intermittent production line generally has the problem of oil leakage at the shaft joint at high temperature, which not only poses a safety hazard, but also leads to a low preheating temperature of the dry material, which cannot realize the high temperature kneading process and affects the raw anode quality

Method used

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  • Continuous preheating and discontinuous mixed kneading production process

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Embodiment 1

[0014] as attached figure 1 As shown, the petroleum coke, residual poles, and raw materials are crushed by the crusher to a particle size of less than 20mm, and then enter the multi-layer vibrating screen, and the materials of different particle sizes obtained through screening are respectively entered into the batching bins; The unbalanced material on a layer of sieve enters the milling system, and the powder with a particle size of less than 0.075mm with a mass percentage greater than 70% is obtained, and then the powder is sent to the powder bin through a chute or conveying equipment. The dry material in each batching bin is measured by the continuous batching scale and then enters the assembly screw. After the initial mixing of various ingredients by the assembly screw, it enters the continuous preheating screw. Enter the kneading pot for high-temperature kneading. The number of kneading pots is determined according to the production scale. After the kneading is completed,...

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Abstract

The invention discloses a continuous preheating and discontinuous mixed kneading production process. A preheating spiral is adopted for continuously preheating a dry material, then a mixed kneading pot is adopted for carrying out discontinuous mixed kneading on a paste material, the effects of high-temperature mixed kneading and high mixed kneading power are achieved, and therefore the raw anode quality and production reliability are improved. According to the process, the reliability of preheating equipment is high, the problem of shaft coupling oil leaking is avoided, and potential safety hazards generated when a preheating pot carries out high-temperature preheating are eliminated. According to the process, the temperature being 175 DEG C needed for production is met by the preheating temperature, guarantees are provided for high-temperature mixed kneading, and the anode quality is improved. The process is high in mixed kneading power, and the anode quality can be improved easily. In addition, the process can achieve continuous production of a whole line.

Description

technical field [0001] The invention relates to a continuous preheating and discontinuous kneading production process, which belongs to the technical field of aluminum electrolysis. Background technique [0002] In the prebaked anode production system, the configuration of the green anode manufacturing workshop plays a vital role in product quality. At present, the configuration of the raw anode manufacturing workshop is mainly divided into continuous line and intermittent line production. The main equipment of the continuous line is continuous preheating screw plus continuous kneader, and then equipped with continuous batching scales and paste cooling equipment; the main equipment of the intermittent line is preheating Pot and kneading pot, supporting intermittent batching scale. However, both of the above two configuration methods have certain defects. The defects of the continuous line are high investment cost and equipment maintenance cost, and low kneading power. Disc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/12
CPCC25C3/125
Inventor 孙继云杨胜张艳张晔何川
Owner GUIYANG AL-MG DESIGN & RES INST
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