A fully mechanized excavation face cutting dust generator and testing method

Abstract

The invention provides a fully mechanized excavation face cutting dust generator and a testing method. A sleeve is arranged on the outer surface of the simulated cutting head, one end of the sleeve is arranged on a closed cylindrical shell through a first bearing, and the other One end passes through the thin disc, the other end is connected with the thin disc through the second bearing, and the other end is fixed on the above-mentioned analog rocker arm through a reinforced steel frame; the sleeve is facing vertically downward One side of the direction is provided with several dust strip gaps, and a dust delivery mechanism is arranged on the other end. The dust falling into the sleeve is continuously conveyed to the other end of the sleeve. When the dust passes through the dust discharge strip gap during the conveying process, the dust is evenly discharged under the action of gravity, and falls quantitatively to the inner surface of the rotating screen. Under the action of air flow, the dust diffuses into the air through the screen to achieve continuous and quantitative uniform dust generation along the outer surface of the cutting head, so as to approach the effect of dust production on the job site, and provide a basic means for the research and development of comprehensive dust removal technology for fully mechanized excavation faces .

Description

technical field [0001] The invention relates to fully mechanized excavation face simulation equipment, in particular to a fully mechanized excavation face cutting dust generator and a testing method. Background technique [0002] In recent years, with the rapid development of roadway excavation technology, the level of mechanized and automated excavation has increased rapidly, and comprehensive mechanized excavation has been widely used in coal mines across the country. The ensuing natural disasters in mine production have also become more prominent, especially the high concentration of dust pollution in the fully mechanized excavation operation area has seriously threatened the occupational safety and health of miners and the safe and efficient production of mines. The problem of high-concentration dust pollution in coal mines will not only reduce the labor productivity of operators, but also face the threat of pneumoconiosis if they work in a dust-polluted environment for ...

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Problems solved by technology

[0004] ①Aerosol generators are used to directly simulate the occurrence of dust. The dust emission area and emission direction are quite different from those on site, and the amount of dust generated is far from enough. Dust is emitted, and the direction of dust emission is inconsistent with the actual situation. Both the air flow generated by the fan and the volume occupied by the personnel will cause a non-negligible disturbance to the air flow field on the working face

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