Micronizing impact grinder and the powder processing system thereof

Abstract

The present invention discloses one impact mill for crushing ore into fine powder, and the impact mill has one casing, two coaxial nailed discs in opposite rotation directions, and two coaxial cones set separately inside the cavities inside the nailed discs and provided with spiral accelerating slots in opposite directions to form one first crushing area and one second crushing area. Through crushing in these two crushing area, the produced powder may reach the powder size of D97 not greater than 3 micron. The impact mill of the present invention has the functions of both airflow mill and mechanical impact mill. The present invention discloses one powder producing system with the impact mill comprising one crusher, one elevator, one storage hopper, one grader, one cyclonic collector, one bag type collector and one induced draft fan. The powder producing system capable of producing powder of different sizes has low power consumption and high efficiency.

Description

(1) Technical field: [0001] The invention relates to mineral powder crushing equipment, in particular to a micropowder impact mill and a powder processing system using the micropowder impact mill. (two) background technology: [0002] The equipment traditionally used for mineral powder crushing in my country is mechanical mill, which is divided into two types: rolling mill and impact mill. [0003] The representatives of rolling mills are various types of Raymond machines. Mineral powder materials are rolled into powder between the grinding roller and the grinding ring, and the processed particle size range is about 44 microns. In addition, there are micropowder mills with similar structures Machine, its processing particle size range is about 10 microns. The advantage of the Raymond machine is low energy consumption. The disadvantage is that the machine is easy to wear and tear, and it is difficult to perform ultra-fine processing on materials with a hardness of more than ...

AI Technical Summary

Problems solved by technology

The advantage of the Raymond machine is low energy consumption. The disadvantage is that the machine is easy to wear and tear, and it is difficult to perform ultra-fine processing on materials with a hardness of more than seven grades.

This double-drive nail-on-disc mill is mainly used for ultra-fine particle size processing, and the fineness of powder materials reaches 2 microns to 5 microns. The diameter of the material must be within 3mm, and the material must be crushed many times before it can be used by the double-drive nail-disc mill

[0006] Due to various reasons, the above-mentioned mechanical grinding equipment cannot meet the production requirements of high-mesh fineness and high-efficiency powder materials. Therefore, it is necessary to design and manufacture mineral powder crushing equipment with higher work efficiency to meet the needs of production.

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