Operation control
When operating a horizontal screw centrifuge, you need to pay attention to the following key parameters to ensure that it is in the best working condition:
1. Drum speed: The drum speed is one of the key factors affecting the centrifugal effect. By adjusting the speed, the solid content of the dewatered cake and the solid content of the supernatant can be changed, thereby optimizing the separation effect.
2. Dry solid load: The size of the dry solid load will also affect the separation effect of the centrifuge. In actual operation, it is necessary to reasonably set the dry solid load according to the nature of the sludge and the processing capacity of the centrifuge.
3. Flocculant: Including the type of flocculant, preparation concentration, dosage and addition position. These factors will affect the flocculation effect of the sludge and the separation efficiency of the centrifuge. Therefore, it is necessary to select and adjust according to the actual situation.
4. Liquid ring layer thickness: The setting of the liquid ring layer thickness has an important influence on the sludge dewatering effect of the centrifuge. By adjusting the liquid ring layer thickness, the separation effect and energy consumption of the centrifuge can be optimized.
5. Speed difference curve; the adjustment of the speed difference curve can further improve the separation effect of the centrifuge. In actual operation, it is necessary to set a suitable speed difference curve according to the properties of the sludge and the performance of the centrifuge.
Maintenance management
The maintenance management of the horizontal screw centrifuge includes daily inspection, regular maintenance and troubleshooting:
1. Daily inspection:
After each use, check whether the appearance of the centrifuge is clean and whether there is any damage or looseness.
Check whether the drum, supernatant return pipe and other parts are rinsed clean to avoid sludge adhesion and vibration.
Check whether the mud inlet screw pump is blocked and clean it in time to avoid forced shutdown.
2. Regular maintenance:
Regularly lubricate the motor and transmission parts of the centrifuge to ensure that the amount of lubricant is appropriate, and regularly check whether the rotor has cracks or deformation to ensure that the centrifuge operates in a safe state.
Clean the inside of the centrifugal chamber regularly to ensure that there is no sample residue to prevent corrosion.
3. Troubleshooting:
If the centrifuge has problems such as excessive noise and unstable speed, it should be checked in time.
Excessive noise may be caused by unstable placement, improper installation of the rotor or failure of the shock absorption system, which needs to be checked and eliminated one by one.
Unstable speed may be caused by unstable power supply voltage, motor problems or wear of the drive belt, and corresponding measures need to be taken to deal with it.
4. Safety management:
When using a horizontal screw centrifuge, personal protective equipment such as protective glasses and laboratory gloves should be worn. Ensure that the sample tube is well sealed to prevent leakage during centrifugation. Place the sample strictly according to the rated capacity to avoid overload and cause failure or damage to the equipment.