How to select the mixer motor: 1. According to the load nature and process conditions of the mixing equipment, the type of the motor should be selected according to the requirements of starting, braking, running and speed regulation of the motor.
2. According to the requirements of load torque, speed variation range and starting frequency, and considering the temperature rise limit, overload capacity and starting torque of the motor, reasonably select the motor capacity and determine the cooling and ventilation mode. At the same time, the selected motor type and rated power should meet the requirements of increasing the starting power when stirring equipment starts up.
3. According to the environmental conditions of the place of use, such as temperature, humidity, dust, rain, gas, corrosion and inflammable and explosive gas, consider the necessary protection mode and the structure type of the motor, determine the explosion-proof level and protection level of the motor. For the dangerous environment of gas or steam, the structure type and the corresponding level and group of explosion-proof motor should be selected according to the zoning level of dangerous environment and the level and group of gas or steam in the dangerous area and the use condition of the motor; For dust hazardous environment, according to the dangerous environment and the operating conditions of the motor, choose the structure type and the corresponding explosion-proof, protection grade of the motor; For the fire danger environment, according to the fire danger environment and the operating conditions of the motor, the protection motor structure type and the corresponding protection level. In chemical corrosive environment, the motor should be selected according to the classification of the corrosive environment.
4. Determine the voltage level of the motor according to the enterprise grid voltage standard and power factor requirements.
5. The rated speed of the motor is selected according to the speed of the stirring equipment and the performance requirements of the transition process of the electric drive speed regulation system, as well as the complexity of the mechanical deceleration.
