Manufacturing method of negative pressure atomization secondary dust suppression device for coal mining machine

Abstract

The invention discloses a coal mining machine negative-pressure atomization secondary dust falling device which comprises a high-pressure water pump, a high-pressure rubber pipe, a coal mining machine and coal mining machine negative-pressure atomization secondary dust falling device bodies. The high-pressure water pump is connected with the coal mining machine negative-pressure atomization secondary dust falling device bodies installed on the machine face of the coal mining machine through the high-pressure rubber pipe installed inside a cable groove, the high-pressure rubber pipe is installed inside a cable pulling clamping plate, the high-pressure rubber pipe and a cable are jointly pulled by the coal mining machine, each coal mining machine negative-pressure atomization secondary dust falling device body comprises a box body, an air sucking opening, air guiding pipes, valve blocks and seamless steel pipe connecting pieces, a hole is formed in each inversed-trapezoid-shaped box body with the lower portion semi-open, the air sucking openings are inserted into the holes and fixedly connected with the box bodies, the air guiding pipes are located inside the box bodies, the valve blocks are installed on the old-waste sides of the inner walls of the box bodies, and the valve blocks are connected with the air suction openings.

Description

technical field [0001] The invention relates to the field of dust removal for mining equipment. Background technique [0002] In the comprehensive mechanized coal mining face, the general mechanized coal mining face and the comprehensive mechanized top coal caving coal mining face, during the coal mining process of the shearer, a large amount of dust is generated around the shearer, which is harmful to the driver of the shearer and the working face. Serious impact on the health of working personnel and the working environment. The problem of dust suppression of drum shearer in the longwall mechanized coal mining face of coal mine is one of the technical problems faced by the coal industry worldwide. [0003] In the case of not taking any dust reduction measures, each ton of coal cut by the coal shearer usually produces 2×10 5 ~5×10 5 mg of coal dust. After the currently adopted dust reduction measures such as spraying inside and outside the coal mining machine and water ...

AI Technical Summary

Problems solved by technology

[0004] At present, although most coal shearers adopt dust reduction measures such as internal and external spraying, the water used in this method is mostly natural pressure, resulting in low water pressure and poor atomization effect, which cannot effectively capture the dust generated during the drum coal cutting process. The dust concentration near the coal machine still far exceeds the national standard for dust concentration in the working environment

[0005] Coal mining workers work under such conditions, which not only reduces the production efficiency of the workers, but also increases the probability of various industrial accidents, and there is also the possibility of coal dust explosions, which threatens the safety of mine production.

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