Mechanism Natural Sand Wind Separation Method

Abstract

The invention relates to a machine-made natural sand winnowing method. According to the method, an external air source is blown into strong wind cabin chambers from a lower-part wind inlet in the front part of the strong wind cabin chambers or a lower-part wind inlet in the front end as well as lower-part wind inlets in side parts of the strong wind cabin chambers; machine-made natural sand enters the strong wind cabin chambers from a feed opening in the upper end of a winnowing cabin, and then is billowed from the bottom up; dust in the machine-made sand is sucked out from a dust extraction port by a dust collector; machine-made sand that can not be blown by the wind is exhausted from a discharge opening at the lower part of the strong wind cabin chambers, while machine-made natural sand which is less than wind power is blown into an intermediate wind cabin chamber; or machine-made sand is blown into the intermediate wind cabin chamber, an external air source is blown into the intermediate wind cabin chamber from a lower-part wind inlet in the front part of the intermediate wind cabin chamber, machine-made natural sand entering the intermediate wind cabin chamber is billowed from the bottom up likewise; dust in the machine-made sand is sucked out by a dust collector again; machine-made sand that can not be blown by the wind is exhausted from a discharge opening at the lower part of the intermediate wind cabin chamber, while machine-made natural sand which is less than wind power is blown into a stock bin.

Description

technical field [0001] The invention relates to a wind-selection method for machine-made natural sand, which can not only realize the selection of machine-made sand with different particle sizes by using wind force, but also realize the dust-free machine-made sand, and belongs to the field of machine-made sand air-separation system manufacturing. Background technique [0002] CN101795774A, the name "sand making device, sand making method and sand making", at least includes a crusher for crushing crushed raw materials; the first sorting device, which uses wind power sorting of air supply and screening of sieves to separate The crushed material from the crusher is sorted into coarse particles, fine particles and fine powder; the negative pressure recovery mechanism, which attracts the fine powder in the first sorting device and recovers it, is characterized in that: in the first sorting A second sorting device is installed midway between the device and the negative pressure re...

AI Technical Summary

Problems solved by technology

[0004] Inadequacies in the above-mentioned background technology: it is impossible to achieve winnowing of machine-made sand, and it is also impossible to reproduce dust-free machine-made sand

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