The main function of the horizontal screw centrifuge is to continuously separate the materials input into the equipment. This requires the equipment to clean out the already separated materials inside the machine, so that the equipment can handle the new materials entering the equipment. In the operation of the horizontal screw centrifuge, especially when it comes to the separation of materials, the operation of the lead screw inside the centrifuge can be regarded as the "soul" of the horizontal screw centrifuge. Without the correct operation of the lead screw, the centrifuge cannot perform its basic functions.

When it comes to the feeding system of the horizontal screw centrifuge, people naturally think of the feeding pump and the dosing pump. However, the outlet of the main equipment, the horizontal screw centrifuge, should be "open". The outlet of the centrifuge refers to the sludge cleaning mechanism below the solid sludge cleaning port, the outlet pipeline of the separated clear liquid and the corresponding gate valve in the outlet pipeline. If the outlet of the centrifuge is blocked, the discharged materials will be dispersed or clogged in the drum system of the centrifuge, generating intense conflicts with the high-speed rotating drum, causing the centrifuge to vibrate violently and make noise until the load is interrupted. At this point, severe solid residue blockage may occur inside the centrifuge.

If the outlet of the horizontal screw centrifuge is often blocked or the material dispersion increases, solid coal ash will gradually accumulate in the shell of the centrifuge and the gap between the casing and the cylinder, causing severe wear and grooving of the cylinder, leading to unsafe factors. Therefore, before starting the feed water pump, the sludge cleaning system must be started and the liquid discharge pipeline opened. Everyone has adopted logical maintenance in the control system, but in some cases, customers may have special requirements and thus neglect logical maintenance. As workers, everyone should be clear about this logical sequence and strictly follow it.

The feeding of the horizontal screw centrifuge must start from a small flow rate and gradually increase. When adding coagulant, pay close attention to the discharged clear liquid and wait for the solid coal ash to deposit in the centrifuge until it is discharged. The discharged liquid should be clear in color. If it is very turbid, it is a sign of blockage. If the clear liquid is discharged from the liquid outlet and the solid residue is discharged from the solid residue outlet (perhaps very damp), it indicates that the material in and out of the centrifuge is smooth and further parameter adjustments can be made.