Design and application of dust reduction method for new roadheaders based on volume of plastic zone
To effectively manage high concentration dust generated by roadheader cutting,based on the calculation of plastic zone vol-ume,a new method of reducing dust generation from the source by changing the angle of the pick tooth tip and the rotation speed of the cutting head was proposed,starting from the source of coal cutting with a pick.A comprehensive dust reduction scheme was designed to control dust,mainly using wet dust removal fans,supplemented by dust control air curtains and induction type full section water cur-tains.The results indicate that after reducing the angle of the pick tooth tip of the roadheader and decreasing the cutting head speed,the concentration of exhaled dust and total dust production decreased significantly.The significance test results showed that the change in dust concentration was significant;the comprehensive dust reduction measures achieved dust reduction rates of 91.3％and 95.1％for exhaled dust and total dust,respectively,achieving the goal of efficient dust prevention and control.
roadheaderdustdust reduction methodcutting parametersvolume of plastic zone
万方数据
维普
