Foam dust removal device for removing fly ash in mine

Abstract

The invention relates to a foam dust removal device for removing fly ash in a mine, and belongs to the technical field of underground dust removal, the foam dust removal device for removing fly ash in the mine comprises: a foam nozzle mounted on a suspension arm of a coal mining machine; the gas-liquid stirrer is mounted in the vehicle body of the coal mining machine, is connected with the foam spray head, and is used for mixing high-pressure water and a foaming agent in proportion to form foam and conveying the foam to the foam spray head; the mixing part is mounted in the gas-liquid stirrer and is used for accelerating mixing of the high-pressure water and the foaming agent and preventing spinning; and the anti-blocking piece is mounted in the gas-liquid stirrer and is used for preventing coal ash from entering the gas-liquid stirrer to cause blocking. The foam dust removal device is simple and easy to implement and convenient to operate, and the phenomenon that the nozzle is blocked due to the fact that a large amount of foam is generated is avoided; the coal dust is covered by more comprehensive gapless foam, so that the dust removal effect on the coal ash under the mine is effectively improved, and the body health of front-line workers is facilitated.

Description

technical field [0001] The invention relates to the technical field of underground dust removal, in particular to a foam dust removal device for removing fly ash in a mine. Background technique [0002] In recent years, my country's coal mining industry has been developing continuously, and the degree of mechanization has been continuously improved. Coal mine production is a key industry of productive dust hazards. While a large number of coal mines are being produced, the coal dust generated in the fully mechanized mining face during the mining process of cutting, transporting and moving coal has a great impact on the health of front-line workers. At present, coal mining in my country is mainly based on underground mining. Due to the small space for underground coal mining, the changeable working places and the poor ventilation effect, each process of mining in the mining area (such as: underground coal mining, tunneling, transshipment, and transportation) will generate a...

AI Technical Summary

Problems solved by technology

However, the foam dust removal technology has the following three disadvantages: First, the foam dust removal produces a large amount of foam to cover the dust production point to reduce dust, which will hinder the line of sight of the front-line workers and affect production safety; second, the foamer is bulky and not easy to be flexibly installed on the shearer Nearby, it is impossible to effectively control the main dust-producing points in the underground mining process of coal mines; thirdly, due to the limitation of spraying foam from the foam nozzle, it is impossible to effectively remove the unwetted dust in the mine

Images