Sand and powder separation system

Abstract

The invention discloses a sand and powder separation system and belongs to the technical field of sand and powder separation. The sand and powder separation system comprises a sand and powder separator, a blower and an induced draft fan, wherein the sand and powder separator is formed by splicing a rectangular box body and an arc-shaped box body; the tail end of the rectangular box body is connected to an air outlet of the blower through an inlet air guide pipe; a sand feeding opening is formed in the inlet air guide pipe; a choke plate is arranged on the side, close to the blower, of the sandfeeding opening; a coarse sand discharge opening and a medium sand discharge opening are formed in the bottom of the rectangular box body; an outlet of the arc-shaped box body is connected to an induced draft opening of the induced draft fan; and a first fine sand discharge opening is formed in the position, close to the rectangular box body, of the bottom of the arc-shaped box body. The sand andpowder separation system separates sand from powder in the sand and powder separator through the blower and the induced draft fan; and owing to a special shape structure of the sand and powder separator, the content of stone powder in the sand is less than 4%, the content of stone powder in a building material that is produced by taking the sand as a raw material is less, and the quality of the building material is more stable.

Description

technical field [0001] The invention belongs to the technical field of sand powder separation, and in particular relates to a sand powder separation system. Background technique [0002] With the rapid development of social construction, the supply of natural sand has been in short supply, and with the introduction of the policy of restricting mining of river sand, the amount of natural sand on the market has become less and less, and machine-made sand has gradually replaced natural sand. At present, there are mainly two types of machine sand making in China: dry sand making and wet sand making. The purpose of both is the same, both for higher sand quality and meeting the standards of construction sand. In the existing dry sand making process, there is generally a process of separating the sand powder mixture, which also involves the sand powder separation device. The existing sand powder separation device adopts a rotating mechanical device to separate the coarse sand and f...

AI Technical Summary

Problems solved by technology

Because the air velocity in the air duct is not fast enough and not concentrated enough, the separation of coarse sand, spun yarn and sand powder in the sand powder is not sufficient, which affects the treatment effect of sand powder separation

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