Green anode skeletal material monosystem manufacturing technique

A single-system, raw anode technology, applied in the new process field of single-system preparation of raw anode aggregates, can solve the problems of PLC control system with many control points, complicated environmental protection projects, complex production processes, etc. Environmental protection and pollution control, the effect of reducing pollution sources

Inactive Publication Date: 2007-09-19
NORTHEASTERN UNIV ENG & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process is complicated, there are many equipments, the maintenance of the equipment is large, the control points of the PLC control system are many, and the production cost is also high; correspondingly, the area of ​​the workshop is also large, and the environmental protection project is also relatively complicated, so the investment is also large

Method used

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  • Green anode skeletal material monosystem manufacturing technique
  • Green anode skeletal material monosystem manufacturing technique
  • Green anode skeletal material monosystem manufacturing technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Petroleum coke and residual poles are weighed with a belt electronic scale according to the weight percentage of 75:25, and then input into the impact crusher. After being crushed by the crusher, they are fed into the three-layer vibrating screen with a bucket elevator for screening. . After sieving, they are respectively put into storage bins with particle sizes of 4-8mm, 2-4mm, 2-1mm and <1mm for later use.

[0048] The material on the top vibrating screen is sent back to the crusher for crushing, and the unbalanced material under the bottom vibrating screen is sent to the mill for grinding through the chute.

[0049] During the next step of kneading process, press

[0050] Particle size (mm) Proportion (wt%)

[0051] 8-4 14

[0052] 4-2 23

[0053] 2-1 21

[0054] <1 42

[0055] Just do the ingredients.

Embodiment 2

[0057] Petroleum coke and residual poles are weighed with a belt electronic scale according to the weight percentage of 85:15, and sent to the impact crusher. After being crushed by the crusher, they are fed into the three-layer vibrating screen by the bucket elevator for screening. point. After sieving, they are respectively put into storage bins with particle sizes of 8-4mm, 4-2mm, 2-1mm and <1mm for later use.

[0058] The material on the top vibrating screen is returned to the crusher for crushing through the chute, and the unbalanced material under the bottom vibrating sieve is sent to the mill for grinding through the chute.

[0059] When carrying out the next step of kneading process, according to the following ratio:

[0060] Particle size (mm) Proportion (wt%)

[0061] 8-4 16

[0062] 4-2 25

[0063] 2-1 19

[0064] <1 32

[0065] Just do the ingredients.

Embodiment 3

[0067] Petroleum coke and residual poles are weighed with a belt electronic scale according to the weight percentage of 80:20, and sent to the impact crusher. After crushing, they are fed into a three-layer vibrating screen with a bucket elevator for screening. After being separated, they are put into storage bins with particle sizes of 8-4mm, 4-2mm, 2-1mm and <1mm respectively for later use.

[0068] Same as in Examples 1 and 2, the material on the top vibrating screen is returned to the crusher through the chute for crushing, and the unbalanced material under the sieve at the bottom of the vibrating sieve is sent to the mill for grinding through the chute.

[0069] When carrying out the next step of kneading process, according to the following ratio

[0070] Particle size (mm) Proportion (wt%)

[0071] 8-4 15

[0072] 4-2 25

[0073] 2-1 20

[0074] <1 40

[0075] Just do the ingredients.

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PUM

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Abstract

The invention provides a process for preparing raw anode aggregate single system, including the processes of: roasting coke, crushing stub, screening, dosing amd mixing, characterized in that: petroleum coke and stub are mixed, based on the proportion, then crushing, screening, and grinding downstream. The proportion is, based on weight percent, 75-85:15-25, wherein preferably 85-80:15-20. The invention also provides the grain distribution and preferable grain distribution of the material after crashing. Accordingly, a method for implementing the said process and apparatus is provided, too. Not only the invest is saved, and labour condition and environment are improved, using and popularizing the inventive process for preparing single system, but also the cost of production is reduced anf the quality of product is improved, with prominent social and economical benefit.

Description

technical field [0001] The invention relates to a production method of a carbon product and an anode of an aluminum electrolytic cell, in particular to a new process for single-system preparation of raw anode aggregate. Background technique [0002] The dry aggregate preparation process such as crushing and screening of petroleum coke and residual anode is a process to provide dry aggregate for the paste preparation and molding process of the raw anode workshop of the prebaked anode factory for aluminum electrolytic cells. [0003] At present, in the dry material preparation process of the raw anode workshop, two independent and parallel production systems are used for the crushing and screening of petroleum coke and anode residues. The production process is complicated, there are many equipments, the maintenance of the equipment is large, the control points of the PLC control system are many, and the production cost is also high; correspondingly, the area of ​​the workshop ...

Claims

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Application Information

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IPC IPC(8): C25C3/12
Inventor 马绍先
Owner NORTHEASTERN UNIV ENG & RES INST CO LTD
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