Sludge centrifugal dewatering machine: principle, process and advantages analysis

This paper introduces in detail the working principle, process flow and application advantages of sludge centrifugal dewatering machine in modern sewage treatment. By analyzing the technical characteristics of the centrifugal dewatering machine, its remarkable effects in improving sludge treatment efficiency and reducing operating costs are revealed. At the same time, in view of the current situation of sewage treatment in my country, suggestions for the reasonable selection and application of sludge centrifugal dewatering machine are put forward. 1. Introduction With the acceleration of urbanization and the increasing prosperity of industrial development in my country, the problem of sewage treatment has become increasingly prominent. In the sewage treatment process, sludge treatment is an important link. As an efficient and reliable sludge treatment equipment, sludge centrifugal dewatering machine plays an increasingly important role in the field of modern sewage treatment with its powerful solid-liquid separation ability and wide range of applications. 2. Working principle of sludge centrifugal dewatering machine The sludge centrifugal dewatering machine mainly uses centrifugal force to achieve solid-liquid separation in sludge. The equipment is mainly composed of a drum, a screw conveyor and a control system. The sludge enters the drum from the inlet. Under the centrifugal force generated by high-speed rotation, the solid particles in the sludge are thrown to the inner wall of the drum to form a solid ring layer; while the liquid, due to its low density, remains inside the solid ring layer to form a liquid ring layer. The sludge in the solid ring layer is slowly pushed by the screw conveyor and transported to the conical end of the drum, and is continuously discharged through the outlet around the drum; the liquid in the liquid ring layer is continuously discharged through the weir to achieve solid-liquid separation. 3. Process flow of sludge centrifugal dewatering machine The process flow of sludge centrifugal dewatering machine mainly includes sludge feeding, flocculant addition, mixed flocculation, centrifugal separation, sludge discharge and clean water discharge. After the sludge is crushed by the crusher, it is transported by the sludge feed pump. After being measured by the electromagnetic flowmeter, it is combined with the prepared liquid sent by the flocculant dosing system and mixed into the centrifugal dewatering machine; after the sludge is separated by the dewatering machine, it becomes solid/liquid two phases, and the liquid phase (clarified liquid or separated liquid) is directly discharged or returned to the sedimentation tank, and the solid phase (dewatered sludge) is discharged by the screw conveyor to the transport vehicle for external transportation. 4. Analysis of the advantages of sludge centrifugal dewatering machine (1) Large processing capacity: The sludge centrifugal dewatering machine has a high processing capacity and can achieve rapid dewatering of large-scale sludge, thereby improving the efficiency of sewage treatment. (2) High degree of automation: The sludge centrifugal dewatering machine adopts an advanced control system to realize the automatic operation of the equipment, reduce the degree of manual intervention, and reduce operating errors. (3) Low operating cost: The sludge centrifugal dewatering machine has a low operating cost, low equipment energy consumption, and simple maintenance, which reduces the operating cost of the sewage treatment plant. (4) Good dewatering effect: The sludge centrifugal dewatering machine has a good dewatering effect, which can effectively increase the solid content of the sludge, reduce the volume of the sludge, and reduce the difficulty of sludge treatment. (5) Environmentally friendly: The sludge centrifugal dewatering machine has excellent sealing performance, which reduces the odor and sewage leakage generated during the sludge treatment process and improves the working environment. 5. Conclusion As an efficient sludge treatment equipment, the sludge centrifugal dewatering machine has the advantages of large processing capacity, high degree of automation, low operating cost, good dewatering effect and environmental friendliness. It has broad application prospects in the field of modern sewage treatment. However, in actual application, it is necessary to reasonably select and configure the sludge centrifugal dewatering machine according to the actual situation of sewage treatment, so as to give full play to its technical advantages and improve the overall efficiency of sewage treatment.