Method for preparing dry sand through ball mill

Abstract

The invention belongs to the technical field of sand making through ball mills, and particularly relates to a method for making dry sand through a ball mill. The method comprises the following steps that limestone is put into a stone bin, the limestone in the stone bin is fed into the ball mill to be ground, and ground materials enter a powder concentrator through a first elevator to be sorted; the sorted fine powder is a heavy calcium powder product, then the heavy calcium powder product enters a calcium powder warehouse through a third elevator to be stored, the sorted coarse powder enters a vibrating screen through a second elevator to be screened again, and coarse particles slide into a hammer crusher to be crushed and then enter the vibrating screen to be screened again; the ball mill and the powder concentrator form an open-circuit grinding system, the ball mill is used for crushing and grinding, then the powder concentrator is used for sorting, coarse particles are dry sand, fine powder is a heavy calcium powder product, only steel balls are adopted as a grinding body, the grinding body plays a role in crushing, stones are not ground into powder, the sand yield is increased, and the production cost is reduced. Coarse materials and fine powder separated by the powder concentrator are respectively products, and raw materials are not wasted.

Description

technical field [0001] The invention belongs to the technical field of ball mill machine-made sand, and in particular relates to a method for ball mill machine-made dry sand. Background technique [0002] The ball mill is the key equipment for crushing the material after it is crushed. This type of mill is filled with a certain number of steel balls in its cylinder as the grinding medium. It is widely used in cement, silicate products, and new building materials. , refractory materials, chemical fertilizers, black and non-ferrous metal beneficiation and glass ceramics and other production industries, dry or wet grinding of various ores and other grindable materials, ball mills are suitable for grinding various ores and other materials, and are widely used Used in ore dressing, building materials and chemical industries, it can be divided into two types of grinding methods: dry type and wet type. According to different ore discharge methods, it can be divided into two types: ...

AI Technical Summary

Problems solved by technology

[0003]The traditional grinding process is to form a closed-circuit grinding system with a ball mill and a powder classifier. The products produced by grinding are powdery, and the size of the powdery material particles is generally 0.08mm or below, it is not suitable for machine-made sand, while river sand needs to be dried, and the cost is relatively high

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