Sand production device

Abstract

The invention relates to a sand production device. The sand production device comprises a gravel hopper, a conveying belt, a sand machine, a lifter, a vibration screen, a powder removing hopper, a powerless powder remover, a dust remover and a storer; the conveying belt is used for conveying mineral materials, falling from the gravel hopper, to the sand machine; the sand machine is used for crushing the mineral materials; the lifter conveys the crushed mineral materials to the vibration screen; the vibration screen is a two-grade screen: a first screen and a second screen arranged from top tobottom, wherein the first screen is connected with a feed port of the sand machine through a vibration screen conveying pipe, and the powder removing hopper is connected under the second screen; the powerless powder remover is connected to an unloading pipe at the bottom of the powder removing hopper; the storer is connected with the powerless powder remover; the dust remover is provided with an air guide main pipe; and the air guide main pipe is provided with branch pipes of a first air guide pipe and a second air guide pipe, wherein the first air guide pipe is connected with an air guide port, and the second air guide pipe is connected with the powerless powder remover. The device can improve the powder removing efficiency.

Description

technical field [0001] The invention relates to the technical field of sand making, in particular to a sand making device. Background technique [0002] Sand making device is a kind of processing and production equipment that uses larger particle size stone as raw material to produce finished aggregates of different specifications. The finished aggregate can meet the requirements of the concrete industry, and can be used to make up for the decreasing natural sand and gravel and reduce the production cost of building materials such as concrete. [0003] The production process of the existing sand making device is as follows: the raw materials are transported to the feeding device through the elevator, and after being crushed and shaped by the feeding device to the sand making device, they are classified by a screening screen, and the sand and gravel materials are screened in the screening screen. After that, the sand that meets the requirements is directly transported to the...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing sand making production line, when the dust removal device discharges the fallen sand and gravel, when the sand and gravel fall from the side wall of the dust removal device (the two side walls other than the air inlet and outlet), it is difficult to remove the sand and gravel. De-powdering the dust in the sand, resulting in high powder content in the sand and gravel, which cannot meet the production needs

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