Design and Improvement of Coal Mining Machine Spray Dust Reduction System
In order to reduce the concentration of dusty coal seam in the working face to ensure the safe operation of the working face equipment and the physical and mental health of the operators,the factors affecting the atomisation effect of the spray system are derived on the basis of the research on the mechanism of dust reduction by spraying;based on the optimisation design of the initial nozzle structure parameters by CFD software,the nozzle diameter and the diameter of the inner cavity hole and the nozzle length are optimised to achieve the matching of the nozzle diameter and the nozzle length and the optimal water supply pressure is determined to be 4 MPa.The optimal water supply pressure is 4 MPa.
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