Mining active magnetic water dust-settling method and system

Abstract

The invention discloses a mining active magnetic water dust-settling method and system. The method comprises processes as follows: an active agent suction pipe extracts a surface active agent from an active agent adding barrel, and the surface active agent and water in static pressure water supply pipe are mixed uniformly in a mixer; formed active water flows in a Z-shaped magnetic channel of a magnetizer and is magnetized; and magnetized active magnetic water is transported to a coal cutter spray system, a combined mining supporting spray system and a transferring point spray system for spray dust settlement. The system comprises the active agent adding barrel, the static pressure water supply pipe, the mixer, the magnetizer, the coal cutter spray system, the combined mining supporting spray system, the transferring point spray system, the active agent suction pipe, a branch pipe, a valve I, a pneumatic liquid driving pump, a flowmeter I, a check valve, a valve II and a flowmeter II, wherein multiple groups of blocking plates are arranged in the mixer, and the Z-shaped magnetic channel is arranged in the magnetizer. According to the system and the method, the mounting is convenient, the structure is simple, continuous magnetization can be realized, and the dust-settling effect is good.

Description

technical field [0001] The invention relates to a mine dust suppression method and system, in particular to a mine active magnetized water dust suppression method and system, belonging to the technical field of coal mine dust prevention. Background technique [0002] Coal mine dust refers to various rock ore particles produced during the construction and production of coal mines. The harm of coal mine dust is mainly manifested in two aspects: one is the harm to the human body. The number of disabled and injured miners caused by pneumoconiosis is very alarming both at home and abroad. According to the survey statistics of coal miners' occupational diseases in the past ten years, pneumoconiosis accounts for about 75% of occupational diseases, and all countries in the world are actively carrying out the work of preventing and treating pneumoconiosis. Another hazard of coal mine dust is that it is easy to cause combustion and explosion. There are many accidents caused by coal ...

AI Technical Summary

Problems solved by technology

Another hazard of coal mine dust is that it is easy to cause combustion and explosion. There are many accidents caused by coal mine dust explosion every year. For gas mines, accidents of gas and coal dust explosion at the same time may occur, which will cause huge economic losses and casualties

In addition, coal mine dust will also cause damage to underground equipment and reduce the visibility of the workplace, which will bring hidden dangers to safe production

[0003] At present, there are many studies on coal mine dust control technology, such as spray dust removal, coal seam water injection and foam dust removal, etc. Although a certain dust reduction effect has been achieved, the results are still not ideal and there are many imperfections

For example, in the existing spray dust removal technology, the particle size of the droplets produced is generally relatively large, and the dust removal rate for dust, especially respirable dust, is extremely low; the water injection dust prevention measures for coal seams have low dust removal efficiency and large water consumption. The application in coal seams with outstanding risks has certain risks; the foam dust removal technology, the efficiency of foam dust removal is not only limited by its own properties, but also affected by the particle size and speed of dust

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