Pre-crushing device of high-purity quartz sand

Abstract

The invention discloses a pre-crushing device of high-purity quartz sand. The pre-crushing device comprises a main body, wherein the main body is internally and fixedly connected with a feeding buffering chamber, a pre-crushing chamber and a discharging buffering chamber; the pre-crushing chamber is arranged in the feeding buffering chamber and the discharging buffering chamber; an outer side wallof the main body is fixedly connected with a first motor; an output end of the first motor is movably connected with a screw rod; a movable block is arranged on the outer surface of the screw rod; the lower surface of the movable block is fixedly connected with a vertical rod; a first movable door is fixedly connected with the lower end of the vertical rod; one side, close to the vertical rod, ofthe upper surface of the first movable door is in sliding connection with a connecting plate. The pre-crushing device disclosed by the invention is reasonable in design and simple to operate and canensure automatic assembly line production so that grains of quartz ores are more uniform; pre-treated materials can be added into a roller machine in an assembly line manner, abrasion, caused by relatively large grains, on a roller surface is alleviated and a crack phenomenon is reduced; the purity of a high-purity quartz sand product is easy to improve.

Description

technical field [0001] The invention relates to the technical field of quartz processing, in particular to a pre-crushing device for high-purity quartz sand. Background technique [0002] The traditional roller crushing method is to feed the material directly from the top of the two rollers. When it is bitten by the roller surface, the force of the rollers gradually increases. The materials discharged under the machine, except for a certain proportion of powdery materials, have a large number of cracks inside the rest of the granular materials, which is convenient for the further crushing process and can greatly reduce the energy consumption of grinding. For high-purity quartz sand As far as the industry is concerned, this traditional crushing method has obvious defects. Since the high-purity quartz sand product needs to have a certain particle size or mesh number (40-180 mesh), it does not need further fine crushing or grinding. The existence of particles makes the overall...

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Problems solved by technology

[0002] The traditional roller crushing method is to feed the material directly from the top of the two rollers. When it is bitten by the roller surface, the force of the rollers gradually increases. The materials discharged under the machine, except for a certain proportion of powdery materials, have a large number of cracks inside the rest of the granular materials, which is convenient for the further crushing process and can greatly reduce the energy consumption of grinding. For high-purity quartz sand As far as the industry is concerned, this traditional crushing method has obvious defects. Since the high-purity quartz sand product needs to have a certain particle size or mesh number (40-180 mesh), it does not need further fine crushing or grinding. The existence of particles makes the overall extrusion force larger when it enters the roll, and the small particles inside are also subjected to high pressure, so that the sand product has a large degree of micro-cracks, the particles of the opposite roll are too large, and the wear of the roll surface is relatively large. It will also cause the particle size of the quartz sand product to be too fine, and the quartz sand particles with a certain particle size after being crushed by the rollers should not have a crack structure inside or on the surface, otherwise it is easy to adsorb other elements or impurities in the later acid treatment or water washing process It is not easy to be removed inside the cracks, which greatly affects the purity of high-purity quartz sand products

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