Wind water mixed atomizing method for down-hole coal cutter fully-mechanized coal winning machine

Abstract

The invention belongs to a wind-water mixing spray technology which can be applied in underground comprehensive mining, comprehensive digging and in places requiring settling dust so as to improve safe production of a coal mine. The invention is characterized in that the technology is realized through the steps as follows: a wind source pipeline which is connected from a ground forcing fan to an extraction working surface with a selectable wind pressure of between 0.5 and 0.7MPa is in parallel connection with a water source pipeline which has certain pressure with a selectable hydraulic pressure of between 3 and 5MPa, and the volume ratio of the mixed wind and water is between 100-135 to 1; the wind source pipeline and the water source pipeline are both connected to nozzles of internal spraying and external spraying of a coal mining machine and a mechanical boring machine, so that wind-water mixing atomized water vapor is sprayed with a flow rate of between 15 and 20M<3>/minute; and the atomized water vapor captures coal dust, and disperses local gas generated during cutting a coal body. The invention aims to solve the problems caused by the local gas which is generated during settling dust and cutting coal and can not be dispersed in time, such as safety threat in production, water resource waste, affected coal quality, slipping belt, slipping goods, bin blockage or other problems.

Description

Technical field: [0001] The invention belongs to the wind-water mixed spraying technology, which is applied in underground fully mechanized mining, fully mechanized excavation and places where dust reduction is required, so as to improve the safety production of coal mines. Background technique: [0002] With the increasing development of coal mines and the continuous application of high-power equipment, the dust and gas generated during the mining process have also increased accordingly. Especially in some double-outlet mines, it is particularly important to reduce dust and eliminate local gas accumulation. At present, high-pressure water flow is generally used in mining mechanized equipment Spray dust reduction, that is, arrange some spray nozzles on coal shearers and roadheaders, and high-pressure water is sprayed through the nozzles to form a certain atomization effect, so as to reduce the scattering of dust. At present, the main problems of this method are that the wate...

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Problems solved by technology

[0003] Purpose of the invention: The present invention provides a method of wind-water mixed spraying for underground coal mining machines and fully mechanized excavators. resources, it is easy to affect the coal quality, or cause problems such as belt slippage, slippery cargo, and warehouse blockage

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