Method and system of carbonaceous material pulverizing

Abstract

The invention relates to a method and a system for milling carbonaceous material. The method for milling carbonaceous material comprises the following steps: a No.1 valve and a No.2 valve of a No.1 stock bin and a No.2 valve for holding stock and dust collecting powder are respectively opened; the stock and the dust collecting powder are conveyed to a miller to be milled and then sucked in a dynamic separator; the stock qualified in separation is then delivered to a bag-typed dust remover and the stock screened by the bag-typed dust remover is sampled and analyzed by a sampler; the stock withqualified purity is conveyed into a No.3 stock bin while the stock with non-qualified purity is conveyed into a No.4 stock bin. The method and the system have the advantages of simple process for milling carbonaceous material, high purity of mill products and even power texture so that carbon products can meet the indexes of the density, strength and porosity and ensure that the energy consumption and the unit consumption of carbonaceous electrodes during the production of electrolytic aluminium and the steel smelting can be reduced with the increased quality and yield of products, thus solving the problems of large occupying area, high investment, low purity of mill products and the like, in the milling process.

Description

Technical field [0001] The invention involves a grinding of a raw material, especially the method and system of a carbon raw material grinding. Background technique [0002] Burning oil coke, asphalt coke, metallurgical coke, graphite, smoke -free coal and other carbon raw materials such as crushing and grinding into various particle size became the main raw materials for carbon products.In order to make carbon products have high density, smaller pores and high mechanical strength, carbon products are ingredients at a certain proportion of raw materials of different particle size during production. Among them, abrasive materials are mainly used to fill large particle size.The gap to improve the volume density and mechanical strength of the carbon products, reduce the pores, and increase the binder of raw products when baking-asphalt's carbon rate.A large amount of carbon products play a pivotal role in the process of steelmaking and electrolytic aluminum. Its quality directly af...

AI Technical Summary

Problems solved by technology

[0003] The grinding system is the key equipment in the process of producing carbon products green body. The main problem faced by the raw material grinding system process is the small capacity of the system and the supporting particle separator of the system The classification efficiency is low, the automation level of the whole system is low, and it is easy to generate positive pressure operation, resulting in dust leakage, and the system occupies a large area, a large number of equipment, high investment and low powder purity.

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