Device for automatically spraying powder fireproof materials to rear part of coal mine combined mining support

Abstract

The invention discloses a device for automatically spraying powder fireproof materials to the rear part of a coal mine combined mining support. The device comprises a feeding hopper, a spraying storage bin, a pressure adjusting chamber and a discharging turbulent flow valve, the spraying storage bin is located on the lower part of the feeding hopper, and communicates with a discharging hole of the bottom part of the feeding hopper, the communicating part is provided with a feeding adjusting valve, one side of the spraying storage bin communicates with an air outlet of the pressure adjusting chamber through a pipeline, and the other side communicates with the feeding end of the discharging turbulent flow valvethrough the pipeline; an air inlet of the pressure adjusting chamber communicates with an air outlet of an air pressing and supplying system in a coal mine combined mining working face through the pipeline; and the discharging end of the discharging turbulent flow valve communicates with a nozzle through the pipeline. According to the device, the structure design is ingenious and reasonable, manual labor can be replaced by a machine, physical labor of workers is liberated, and uniform spraying of the powder fireproof materials is obtained in a rectangular area with the width of 1 m on the rear part of the combined mining support.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of fire prevention in gobs of fully mechanized mining working faces in coal mines, and in particular relates to a device for automatically spraying powdery fireproof materials behind a fully mechanized mining support in a coal mine. shaped fireproof material. [0003] Background technique: [0004] For a long time, coal, as the "grain" of modern industry, has a series of advantages such as abundant reserves, low price and good heating performance, and has been regarded as the main basic energy source in my country. Affected by the occurrence of coal seams, the vast majority of mines in my country are accompanied by fire accidents all year round. The spontaneous combustion of coal not only delays production, but also wastes resources, causing material and financial losses in light cases, and casualties in severe cases. According to statistics, more than 80% of accidents are caused by spontaneous combu...

AI Technical Summary

Problems solved by technology

This is not only inefficient, but also the staff must carry hundreds of catties of fireproof materials to work on the coal mining face with many machines and equipment, which is a kind of heavy physical labor. Negative impact on the health of personnel

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