Press filter

Abstract

The invention discloses a press filter. The press filter comprises hydraulic cylinders, filter plates and a thrust plate, wherein a main is fixed to a main hydraulic cylinder base; a guide roller on the base is arranged on guide rails of main beams; a piston rod of the main hydraulic cylinder is connected with a push plate connected with the filter plate at the right end of the plurality of variable capacity filter plates; the filter plate at the left end of the plurality of variable capacity filter plates is in contact with the thrust plate; the variable capacity filter plates are connected with one another through lower connecting boards; a quick-opening hydraulic cylinder is fixed to one end of the left end of the corresponding main beam, and piston rods of the quick-opening hydraulic cylinders are connected with the hydraulic cylinder base; an insert plate lifting hydraulic cylinder is fixed to the main hydraulic cylinder base; the upper end of an n-shaped insert plate is connected with a piston rod of the insert plate lifting hydraulic cylinder; the main beams are arranged in the opening of the n-shaped insert plate; a limiting plate is fixed to the side surface of one main beam and opposite to the insert plate. The press filter has the remarkable advantages that the compression is high, the material containing solid rate reaches 50% or above, and cleaning of filtering cloth is quick and clean.

Description

Technical field: [0001] The invention relates to a dewatering technology, in particular to a filter press for dehydrating sludge, paper pulp and other solid media. Background technique: [0002] A large amount of sludge generated by sewage treatment plants, papermaking, printing and dyeing, chemical, pharmaceutical, food and other industries needs to be treated. After research, sludge drying and incineration treatment is the best way to treat sludge, which requires that the solid content of sludge should reach more than 50% in order to reduce the energy consumed in the incineration process. However, there are two problems in the existing filter press. One is that the extrusion force is small, generally no more than 20 kg / cm 2 , the requirement of high solid content cannot be achieved; the second is that the filter cloth is not cleaned cleanly, resulting in low dehydration efficiency, which affects the output of the filter press. Invention content: [0003] The object of ...

AI Technical Summary

Problems solved by technology

However, there are two problems in the existing filter press. One is that the extrusion force is small, generally no more than 20 kg / cm 2 , the requirement of high solid content cannot be achieved; the second is that the filter cloth is not cleaned cleanly, resulting in low dehydration efficiency, which affects the output of the filter press

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