Coal cutter gas-water mixing external spray system

Abstract

The invention discloses a coal cutter gas-water mixing external spray system, which belongs to the coal mining machinery field. The coal cutter gas-water mixing external spray system comprises a water supply system for providing pressure water and a gas supply system for providing pressure gas, the water supply system comprises a pumping station, a stop valve and a liquid overflow valve communicated in order; the gas supply system comprises an inflator, a gas tank and an air pressure-regulating valve connected in order; and the ends of the water supply system and the gas supply system are connected to a spray system assembly. The water supply system of the present invention employs the cooling water of a coal cutter, the atomization effect can be greatly increased and the dedusting water consumption can be simultaneously saved. A pressure detection apparatus and a flow apparatus are respectively arranged in the gas supply system for providing the pressure gas, the accurate control for the gas-water spray can be realized, and the coal cutter gas-water mixing external spray system is suitable for different well environment.

Description

technical field [0001] The invention relates to the field of coal mining machinery, in particular to an air-water mixing external spraying system for a coal mining machine. Background technique [0002] With the continuous improvement of the comprehensive mechanization degree of coal mining face and the continuous application of high-power equipment, the dust and gas generated in the mining process have also increased sharply. At present, my country's coal mining is dominated by underground mining, and underground mining accounts for about 90% of the coal output. Due to the narrow space for underground coal mining, the working place is changeable and the ventilation effect is poor. Therefore, during underground coal mining, excavation, reloading, and transportation, a large amount of dust is generated, which seriously pollutes the underground environment. High concentration of dust can easily cause combustion and explosion, and can also cause pneumoconiosis, and high conce...

AI Technical Summary

Problems solved by technology

At present, the dust prevention level of this method is still relatively low, the air pollution is serious, the visibility of the workplace is low, and the water consumption is large, which wastes water resources, easily affects coal quality, and easily causes problems such as belt slippage.

At the same time, for high-gas mines, the coal seam contains a large amount of gas, and the local gas generated when cutting coal cannot be dispersed in time, which will easily cause gas accidents, which is not good for safety

If these problems cannot be effectively resolved, there will be unforeseen consequences

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