Preconcentration Conch-Screw Press Sludge Dehydrator

The pre-concentration screw press sludge dewatering machine integrates the pre-concentration and deep dewatering functions, breaking through the limitation of sludge concentration on traditional equipment and becoming the key equipment for efficient treatment of low-concentration sludge. The equipment integrates the concentration, conditioning and dewatering processes into a continuous process through modular design, realizing the optimization of the whole process of sewage treatment, and is suitable for low-concentration sludge scenarios such as municipal sewage plants and food processing.

Its core technology lies in the joint action of the pre-concentration system and the screw press. It adds a pre-concentration system to the mixing tank, which can concentrate the sludge. The sludge enters the concentration unit in the mixing tank. Through the combined action of gravity sedimentation and micro-bubble flotation, the sludge concentration is increased from the initial 10000mg/L to the treatable range, improving the treatment efficiency and the effect of low-concentration sludge. This stage reduces the subsequent treatment load.

The dewatering core adopts a double-screw pressing structure. The concentrated sludge undergoes a step-by-step reduction in the pitch of the spiral shaft in the tapered filter chamber to form a spatial compression effect. The dislocation movement of the floating ring and the fixed ring produces shear extrusion, and the back pressure plate applies terminal high pressure. The equipment innovatively adopts a self-cleaning filter seam design, which drives the floating ring to periodically clean the filter holes through the rotation of the spiral shaft. The intelligent control system is another highlight of the equipment. The pre-concentration screw press sludge dewatering machine ensures the balance between treatment efficiency and energy consumption.

In terms of environmental benefits, the introduction of the pre-concentration system improves the treatment efficiency and the effect of low-concentration sludge. . With the popularization of smart water systems, this equipment promotes the continuous evolution of sludge treatment towards unmanned and low-carbonization.