Fully mechanized mining face gettering-induction convection type dust control and removal wind fog screen device and method

Abstract

The invention discloses a fully mechanized mining face gettering-induction convection type dust control and removal wind fog screen device and method, and belongs to the technical field of coal mine dust removal. The fully mechanized mining face gettering-induction convection type dust control and removal wind fog screen device comprises draw-out dust clearing fans, fan-shaped flow guide hoods, coal cutter exterior spraying devices and spraying devices between hydraulic supports; the coal cutter exterior spraying devices and the spraying devices between the hydraulic supports are mounted on the two sides, close to rocker arms of a coal cutter, of a cutter body, the two hydraulic supports in front of a moving frame, and the two hydraulic supports on the downwind side of a front roller of the coal cutter correspondingly, and conduct spraying at a certain angle to form corresponding fog screens; a large amount of dust generated by the moving frame and coal cutting is subjected to atomization dust removal; and meanwhile, the two draw-out dust clearing fans which are symmetrically mounted on the positions, close to the cutter body of the coal cutter, of the rocker arms are started, exhaust inlets of the two draw-out dust clearing fans directly face the front roller and a rear roller of the coal cutter correspondingly, and wind outlets are connected with the fan-shaped flow guide hoods. The fully mechanized mining face gettering-induction convection type dust control and removal wind fog screen device and method have important practical significance for improving the operating environment of fully mechanized mining face workers and guaranteeing safety production of coal mines.

Description

technical field [0001] The invention relates to the technical field of dust removal in coal mines, in particular to a suction-induced convection control dust removal wind and mist curtain device and method for a fully mechanized mining face. Background technique [0002] Coal has always been the largest energy support in my country. Among the proven petrochemical energy reserves in the country, oil and natural gas account for only 6%, and the remaining 94% are coal. The coal industry has made outstanding contributions to the long-term and rapid development of the national economy. With the continuous improvement of the level of comprehensive mechanization, the problem of large dust production is becoming more and more serious. According to the measurement data, without turning on the dust suppression equipment, the dust generated by the simultaneous operation of various processes in the fully mechanized mining face can exceed 4000mg / m 3 , Far exceeded the national standard, ...

AI Technical Summary

Problems solved by technology

With the continuous improvement of the level of comprehensive mechanization, the problem of large dust production is becoming more and more serious. According to the measurement data, without turning on the dust suppression equipment, the dust generated by the simultaneous operation of various processes in the fully mechanized mining face can exceed 4000mg / m 3 , far exceeded the national standard, and posed a serious threat to the safety of coal mine production and the health of workers

[0003] In view of the current problems, scholars and experts from various countries have also carried out in-depth research. Although the implementation of measures such as coal seam water injection and spray dust reduction have played a role in reducing dust to a certain extent, but now with the continuous improvement of mechanization, production The amount of dust is also increasing, so that the dust reduction effect of the existing dust control measures is not obvious, especially the dust control effect in the working area of ​​the coal mining machine workers is not good, which seriously endangers the physical and mental health of the workers in the coal mining area. Mine Safety Production

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