Research on the Influence and Optimization of Rotor Structure of Vertical Shaft Impact Crusher on Sand Production Rate
In order to improve the sand production rate of the vertical shaft impact crusher while minimizing its energy consumption,a rotor structure optimization method with sand production rate and rotor power as the objectives was proposed.Firstly,a cumulative damage model of material particles under repeated impact was established,on this basis,a numerical calculation model suitable for the crushing system of vertical shaft impact crusher was constructed,and the crushing law of material particles in the crusher was analyzed.The reliability of the numerical model was verified through crushing tests.Then,orthogonal design analysis and range analysis were used to reveal the influences of rotor structural parameters on sand production rate and rotor power,and a mathematical model was established between sand production rate and rotor power with rotor structural parameters.Finally,the mathematical model was used to optimize the rotor structural parameters.The results show that when the diameter of the rotor is 836 mm,the inclination angle of the dividing cone is 38.9°,and the installation angle of the guide plate is 22.5°,the sand production rate is 47.2％,and the rotor power is 82.5 kW.The sand production rate and rotor power of the vertical shaft impact crusher have been effectively improved after optimizing the rotor structure.The research results can provide a theoretical basis for the improved design of the rotor structure of vertical shaft impact crusher.
Sand production rateRotor powerCumulative damage modelOrthogonal testMulti-objective optimizationRotor structure
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维普
