Study on the Crushing Degree and Dust Production Characteristics of Coal Body Invaded by TBM
With the continuous improvement of the mechanization level of excavating operation,the dust problem is becoming more and more serious.In order to achieve dust reduction from the perspective of the difference of dust production in coal crushing caused by different cutting conditions of the excavating machine,the dust production characteristics of the excavating machine at different cutting propulsion speed,rotation speed and cutting tooth tip Angle are studied based on the cutting dust production test system.The results show that with the increase of cutting speed,the dust production first decreases and then increases;With the increase of cutting rotation speed or cutting tooth tip Angle,the dust production gradually decreases.The research results can be of guiding significance for the adjustment of the technological parameters of excavation.
coal cutting machinecutting parameterdust production characteristic
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