Spiral sedimentation centrifuge is widely used in starch, chemical, pharmaceutical, industrial wastewater treatment and other industries, under the action of centrifugal force generated by the high-speed rotation of the main engine, the solid particles with large specific gravity are deposited on the inner wall of the bowl, and the spiral blades of the drum do the relative motion continuously scrape off the solid particles deposited on the inner wall of the bowl and push out the slag discharge port, and the separated clear liquid flows out of the bowl through the opening of the weir plate.

In the sewage plant, in the treatment of activated sludge, the whole process of desilting using a screw sedimentation centrifuge is to drive the high-speed rotation of sludge through a high-speed rotating drum, and then generate centrifugal force, so that the sedimentation of solid particles in the sludge is accelerated and concentrated on the drum wall. The resulting mud cake is then scraped to the small end of the bowl by means of a spiral, so that it can be discharged, thus completing the desliming work. The solid-liquid separation effect is related to many factors, if the separation factor is larger, and there are no other conditions, then the solid-liquid separation effect is better. However, it is not certain, because it is necessary to take into account factors such as drugs and materials, so that a comprehensive judgment can be made.

Settling centrifuge

After a long period of use, it may occur that the discharge is not dry, easy to block the material, etc., and it is also possible that the equipment is very noisy and the jitter is enhanced, which may be caused by improper use of the machine due to poor maintenance, or it may be the cause of the aging of the machine. When these situations occur, it is good to ask professional manufacturer personnel to come over for observation and guidance.

In fact, the basic function of the spiral sedimentation centrifuge is to continuously separate the materials input into the machine under normal use, which requires the machine to exclude the materials that have been separated inside, so that the machine can continue to process the new materials that enter it, and the industrial production mode requires that the process of "separation-discharge-continue separation-continue discharge" is automatic and continuous. Combined with its operating principle, it is through the internal pusher spiral to achieve the effect of continuous discharge. The function of this discharge is achieved by the relative rotational movement between the spiral and the bowl body, which we call "differential". At the same time, because the feed is continuous, the differential speed also needs to be continuous in order to maintain the function of continuous processing of materials in order for the equipment to maintain the function of continuous processing.

In other words, in order to avoid the accumulation of materials inside the equipment, which can cause malfunctions, it is necessary to keep the differential speed in pushing. The so-called "pusher method" refers to the "differential speed" generated between the spiral and the bowl body, which pushes the separated solids in the direction of the slag discharge port. For the same spiral, the differential speed can generally be designed as a positive differential and a negative differential according to the different rotation directions of the bowl, but the pushing behavior of the two is the same.

In fact, during operation, the staff can keep it in good working condition and maintain a stable working rate by constantly adjusting its operating parameters. In general, if the load on the differential drive motor or the oil pressure in the hydraulic line is stable, we can conclude that the dryness of the discharged solids is very stable.