Carbon raw material crushing screening method and system

Abstract

The invention discloses a method and a system for crushing and sieving carbon raw materials, and in particular relates to a method and a system for crushing and sieving raw materials suitable for producing aluminum anodes, aluminum cathodes and aluminum electrodes. The method for crushing and sieving the carbon raw materials comprises: sending the raw materials to a belt conveyer; analyzing the raw materials by an online sampling analyzer which is arranged at the tail end of the belt conveyer; controlling a triple valve to discharge the raw materials according to the size fraction of the raw materials; and sending the raw materials to a bucket elevator which sends the raw materials to a sieving device for sieving. The method and the system have the advantages that the technological process of sieving first and crushing later or crushing first and sieving later can be selected according to the particle size distribution result of the materials by the novel technology for crushing and sieving the carbon raw materials; and oversize is returned back to a crusher for continuous crushing, and undersieves with different size fractions enter different proportioning bins respectively, so that overloading of the sieving device and a crushing device and overcrushing of the raw materials are avoided.

Description

technical field [0001] The invention relates to a method and system for crushing and screening carbonaceous raw materials, in particular to a method and system for crushing and screening materials suitable for producing aluminum anodes, cathodes and electrodes. Background technique [0002] The raw materials used in the production of aluminum anodes, cathodes and electrodes, including the production return materials, must be crushed and screened into materials of various particle sizes according to the formula requirements. 1. Screening is an essential process for the production of carbon products. The particle size distribution of raw materials produced by crushing and screening affects the amount of binder and the quality indicators of density, porosity, and mechanical strength of carbon products. The technological process adopted by the existing crushing and screening system is that all raw materials directly enter the crusher, and after crushing, they directly enter the ...

AI Technical Summary

Problems solved by technology

This leads to excessive crushing of raw materials, resulting in too much fine material in raw materials, unreasonable particle size distribution of materials, and increases the load of crushers and screening equipment.

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