Method and device for automatically isolating dust sources and generating sprays for dust control and suppression

Abstract

The invention relates to the field of dust removal in coal mines, in particular to a method and device for automatically isolating dust sources and generating sprays for dust control and suppression.The device comprises lifting cylinders and a dust blocking curtain, wherein a nozzle mounting frame is mounted on the top of the lifting cylinders; and the nozzle mounting frame is provided with a plurality of nozzles. In the device for automatically isolating the dust sources and generating the sprays for dust control and suppression, the position of the dust blocking curtain is changeable in theup and down direction rather than fixed or unchangeable. When the device is in use, the lifting cylinders are used for lifting the dust blocking curtain, and the lifting cylinders do not rise when acoal cutting machine moves, so that the view of a driver is not blocked. During coal cutting, the dust blocking curtain rises, and the height of the dust blocking curtain plus the height of a chute isolation belt can effectively prevent dust from overflowing. In addition, the sprays from the nozzles are used for dust suppression treatment, and the dust can quickly fall into a chute.

Description

technical field [0001] The invention relates to the field of dust removal in coal mines, in particular to a dust source automatic isolation spray control dust reduction method and device. Background technique [0002] When the coal mining machine is cutting coal in the fully mechanized mining face of the coal mine, due to the strong breaking of the coal cutter drum, the coal wall will appear in pieces and a large amount of coal will fall to the bottom of the coal chute, resulting in impact dust with a height of about 1700mm, which impacts the bottom of the dust source Rapidly spread outwards. In order not to block the sight of the coal cutter driver, the height of the chute barrier to prevent the impact dust from running out is only 1000mm, which cannot stop the large amount of dust generated instantaneously, causing a large amount of dust to float to the pedestrian under the action of the roadway wind flow laneway. [0003] There are two existing methods to solve the impac...

AI Technical Summary

Problems solved by technology

[0004] The present invention hangs a dust curtain on the hydraulic support against the dust produced by the impact of the coal wall. However, the height of the hydraulic support does not affect the driver's sight and the movement of the hydraulic support is not synchronized, causing the dust curtains to stagger each other and have gaps. For the problem of entering the working face from the gap, provide a dust source automatic isolation spray control dust suppression device

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