Driving and speed regulation method of decanter decanter decanter, typical structure of decanter centrifuge

- Mar 26, 2020-

The input shaft of the single-speed motor-driven differential is fixed-after replacing the belt pulley and the rotating speed and differential speed of the conditioning drum, this speed regulation method is suitable for technically stable material separation.
Use two inverters to separately control the drive of the main and auxiliary motors. The dual inverters are used to control the drive of the main and auxiliary motors, and the speed and differential speed of the conditioning drum are separated, and the speed adjustment method is convenient.
The main motor drives the drum and uses a hydraulic motor to regulate the differential. The frequency converter is used to adjust the rotating speed of the drum driven by the main motor, and the hydraulic motor is used to change the speed to adjust the differential speed.

Interrelationship between the various speeds of the decanter decanter centrifuge and the differential speed with the discharge screw
Drum speed: n turns = n1 x i1
n-to-drum speed r / min
n1—the speed of the main motor (the speed of the main motor is read from the nameplate of the main motor, or adjusted by the frequency conversion method)
i1 Transmission ratio of a main motor to a drum belt pulley
Differential speed between drum and discharge screw: △ n = (n1 x i1-n2 x i2) / i difference
△ n Differential speed r / min between drum and discharge screw
i Differential-to-differential fixed transmission ratio
n2 speed of one auxiliary motor (the speed of the auxiliary motor is read from the nameplate of the auxiliary motor, or adjusted by the frequency conversion speed regulation method) r / min
i2 Transmission ratio of a pair of motor and differential pulley
When a hydraulic motor or a full hydraulic differential device is selected, the speed of the unloading screw is directly adjusted by the hydraulic motor or the hydraulic differential device. The differential speed of the rotating drum and the unloading screw is the output speed of the hydraulic motor.

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