Rapid pressure filter

Abstract

A fast filter press, which is composed of two end brackets, a middle plate, two top beams and two bottom beams connected by bolts to form a frame structure frame symmetrical to the middle plate, and the two sides of the middle plate are arranged symmetrically in sequence Filter unit and compression plate, all the filter plates in each filter unit are divided into three groups with the same number of filter plates with the connecting filter plate and the middle filter plate as the boundary, the filter plates and the filter plate and the compression plate are connected by hinges, The tensioning device and the pulling plate device composed of double-piston rod hydraulic cylinders are installed in the middle of the frame, and the piston rods at both ends of the respective hydraulic cylinders are respectively hinged with the compression plate and the connecting filter plate; the machine adopts symmetrical tension and compression The tensioning method of the plate presses the filter unit, the filter plate is divided into groups three times to unload and unload, and the two ends move and the middle is fixed. The problem of low efficiency and poor reliability caused by the inherent defects in the structural design of the machine.

Description

technical field [0001] The invention relates to a solid-liquid separation device, in particular to a fast filter press for filtering suspension. Background technique [0002] At present, the traditional filter press is a frame composed of a thrust plate, a main beam, a pressing and a pulling plate device, a pressing plate placed on the main beam of the frame, several filter plates and a filter plate laid on the surface of the filter plate. The filter unit is composed of filter cloth; the supporting system is composed of hydraulic pump station, feeding pump, peripheral connecting pipeline and electrical control system. When the filter press is working, the compression device first pushes the compression plate to compress the filter unit between the compression plate and the thrust plate, so that the filter unit forms several well-sealed filter chambers, and then the feed pump pumps the filter unit to be filtered. The suspension is pressed into the filter chamber through the ...

AI Technical Summary

Problems solved by technology

[0004] (1) The sealing of the filter unit adopts a compression method, which leads to unreasonable force on the frame, especially the main beam pole under the double action of the gravity generated by the filter unit’s own weight and the weight of the filter cake and the huge tension generated by the compressed filter unit. It is prone to instability and deformation; to meet the rigidity and strength requirements of the frame and improve the reliability of the whole machine, it is necessary to increase the overall size of the frame and the cross-sectional size of the main beam, which directly leads to an increase in the weight and manufacturing cost of the whole machine

[0005] (2) The filter plates are pulled apart one by one, which has low efficiency and slow speed, resulting in too long unloading time

[0006] (3) The feeding method adopts a single feeding port of the thrust plate, and the feeding uniformity and slow speed of each filter chamber lead to a high breakage rate of the filter plate and a long filtration time

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