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      Drive and speed regulation method for unloading settling horizontal screw centrifuge, typical structure of settlement centrifuge
      Source: | Author:kaidahb | Publish time: 1025 days ago | 422 Views | Share:
      The input shaft of the differential driven by a single-speed motor is fixed - separated from the drum speed and differential speed by replacing the pulley. This speed regulation method is suitable for technically stable material separation.
      The input shaft of the differential driven by a single-speed motor is fixed - separated from the drum speed and differential speed by replacing the pulley. This speed regulation method is suitable for technically stable material separation.
      Use two converters to control the drive of main and auxiliary motors. The double frequency converter is used to control the drive of the main motor and the auxiliary motor, separately adjusting the rotational speed and differential rotational speed of the drum.
      The main motor drives the drum, and the hydraulic motor is used to adjust the differential speed. Frequency converter is used to adjust the drum speed driven by the main motor, and hydraulic motor is used to adjust the differential speed.




      The relationship between the various rotational speeds of the decanter decanter centrifuge and the differential speed between the centrifuge and the unloading screw.
      Drum rotation speed: n to =n1 x I1
      N turn to drum speed r / min
      N1-speed of main motor
      I1 transmission ratio of main motor and drum pulley transmission
      Differential speed of drum and discharge screw: Delta n= (N1 x i1-n2 x I2) / I difference
      Differential speed r / min for a rotary drum and discharge screw n
      Fixed transmission ratio of I differential differential
      N2 a pair of motor speed (the speed of the secondary motor is read by the nameplate of the secondary motor, or regulated by frequency conversion method) R / min
      I2 transmission ratio between a motor and differential pulley
      When hydraulic motor or full hydraulic differential equipment is selected, the discharging screw speed is directly regulated by hydraulic motor or hydraulic differential equipment, and the differential speed between drum and discharging screw is the output speed of hydraulic motor.
      Typical layout of unloading and settling horizontal screw centrifuge





      After the countercurrent mixture enters the drum, it is clear that the liquid and the sediment move backwards when they leave, and then flow to their respective outlets. The countercurrent type is the standard type, suitable for most separation occasions.


      After entering the drum, the clear liquid and the sediment move in the same direction when they are separated. After separating, the clear liquid is discharged back through the skimming tube to prevent the material from scouring the sediment. The flow pattern layout is more suitable for the separation of low concentration and difficult separation materials.


      When two kinds of liquid and one kind of solid substance with poor density enter the drum, under the effect of centrifugal force, the solid substance settles and the two kinds of liquid substances present delamination, and then complete the liquid-liquid-solid three-phase separation, which is suitable for the situation of liquid-liquid-solid three-phase separation with poor density.

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