Efficient garnet combining and magnetic separation screening device and technology

Abstract

An efficient garnet combining and magnetic separation screening device comprises an assembly line for treating garnet containing crude sand. The assembly line is provided with a drying machine, a first screening machine, a second screening machine and a plurality of magnetic separation units. During magnetic separation screening, the garnet containing crude sand is dried, water in the crude sand is discharged, then, the dried crude sand is screened, the crude sand is screened into several parts according to the mesh number of the crude sand, then each part of crude sand is subjected to magnetic separation operation, iserite, rutile and omphacite in the crude sand are sorted out, finally, the left garnet sand is screened again, the crude sand is screened into several parts according to themesh number of the crude sand, and pure garnet sand different in mesh number is obtained. The device conducts operation of screening, magnetic separation and re-screening on the crude sand, separatedtreatment is conducted on the crude sand, the equipment treatment pressure is lowered, the treatment efficiency is improved, and the garnet higher in purity and more uniform in mesh number is obtained.

Description

technical field [0001] The invention relates to the field of mineral processing technology, in particular to a high-efficiency combined magnetic separation and screening device for garnet, and specifically relates to a process for magnetic separation and screening using the above-mentioned high-efficiency combined magnetic separation and screening device for garnet. Background technique [0002] Garnet is the general name of a group of island-shaped silicate minerals whose crystals belong to the equiaxed crystal system. It is widely distributed in nature. Various garnets have their own production conditions. General garnets can be used as abrasive materials and are transparent. The beautiful are like gems. [0003] At present, garnet has been used in many important industrial sectors, such as optical industry, electronic industry, machinery industry, instrumentation, printing industry, building materials, and mining and other departments. [0004] Especially in the sandblas...

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Problems solved by technology

[0004] Especially in the sandblasting and grinding market, at present, a large number of materials such as silica sand, slag and coal coke are used, which have insurmountable shortcomings, which are easy to cause silica dust and seriously pollute the environment; while garnet basically does not have the above shortcomings, and its supply is stable. Clean and suitable for sandblasting abrasives, it has been used instead of silica sand in some fields, and it is entirely possible to replace it in the future

[0005] However, at present, 60-80 mesh garnet is generally used as the sandblasting abrasive material, and the production will be different due to the actual cutting material and the matching of the sand pipe and the pump. Sand will affect the cutting efficiency, seriously even cause defective products or waste products, and directly reduce the service life of the cutting head accessories and affect production. This requires that the garnet as the sandblasting abrasive material should be uniform, but the existing technology The sieving methods for garnet are not very good, either the sieving procedure is too complicated, or the obtained garnet is not uniform enough, which cannot well meet the actual market demand.

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