When using a single motor, the effect of smashing is not so good. If the customer's requirements for the crushing effect of the material are not so strict, you can choose a single motor, which saves energy, but the output will be relatively discounted, of course, according to where selected, can not give up energy to a motor, double motor with high yield, high reduction effect of the characteristics of the roll crusher, some customers are used to block the pulverized coal, pulverized to this effect as the particle size that is no Strict requirements, then you can choose a single motor in the case of cost savings; hard material crushing due to large crushing ratio, high material hardness, high requirements on the machine, general crushing equipment is not suitable, such as river pebble sand application .
Generally, the rated power of the motor should be larger than the power of the load to leave room for the power of the motor to be 1.1-1.5 times the power of the production machinery. In order to avoid the phenomenon of “big horse trolleyâ€, this will not only increase the purchase cost, but also reduce the power factor and efficiency of the motor, resulting in unnecessary energy waste. The phenomenon of "small horse-drawn cart" is even more undesirable. This will cause the motor to be overloaded and cause serious heat generation. If it is operated for a long time, it will cause the motor insulation to age rapidly, even burn the motor and shorten the service life of the motor. When the load rate of the motor is 75-100%, the motor is the most efficient and the most economical operation.
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