Plate-and-frame filter press for sludge dewatering

Abstract

The invention relates to the technical field of plate-and-frame filter presses, in particular to a plate-and-frame filter press for sludge dewatering, which comprises a frame body; a sludge leading-out component is installed at the lower end of the interior of the frame body, a sludge block box is welded to one side of the lower end of the frame body and located below the sludge leading-out component, and a thrust plate is welded to one side of the upper end of the frame body. A feeding component is installed on the outer surface of one side of the thrust plate in a penetrating mode, a filterpressing plate is installed on the other side of the thrust plate, a push plate is installed on the outer surface of one side of the filter pressing plate, an air cylinder is installed on the outer surface of one side of the push plate, a filtrate discharging pipe is installed on the front surface of the lower end of the filter pressing plate, and a sliding groove is formed in the upper surface, and rollers are mounted on the front surface of the filter pressing plate. The plate-and-frame filter press for sludge dewatering is provided with the sludge guide-in crushing component, wherein the filter pressing plate is in sliding connection with the frame body through the rolling wheels; in addition, the plate-and-frame filter press is provided with a sludge block collecting and guide-out structure.

Description

technical field [0001] The invention relates to the technical field of plate and frame filter presses, in particular to a plate and frame filter press for sludge dewatering. Background technique [0002] A sludge treatment method that removes water from fluidized primary, concentrated or digested sludge and converts it into semi-solid or solid sludge. After dehydration, the moisture content of the sludge can be reduced to 55% to 80%, depending on the nature of the sludge and sediment and the efficiency of the dewatering equipment. The further dehydration of sludge is called sludge drying, and the moisture content of dried sludge is less than 10%. Dehydration methods mainly include natural drying method, mechanical dehydration method and granulation method. Natural drying method and mechanical dehydration method are suitable for sewage sludge, and granulation method is suitable for coagulation and sedimentation sludge. Plate and frame filter press It is the first machine us...

AI Technical Summary

Problems solved by technology

Dehydration methods mainly include natural drying method, mechanical dehydration method and granulation method. Natural drying method and mechanical dehydration method are suitable for sewage sludge, and granulation method is suitable for coagulation and sedimentation sludge. Plate and frame filter press It is the first machine used in chemical dehydration. Although the plate and frame filter press is generally operated intermittently, the investment in infrastructure equipment is relatively large, and the filtration capacity is also low, but due to its strong filtering driving force, high solid content of the filter cake, and The advantages of clear filtrate, high solid recovery rate, and less consumption of conditioning chemicals are still widely used in some small sewage plants.

[0003] Chinese patent discloses plate and frame filter press, (authorization announcement number CN210448224U), but, the plate and frame filter press of sludge dehydration on the market at present, can not carry out crushing to the larger garbage in the sewage of importing, is unfavorable for The filter press of the device leads to blockage of the water inlet, which is not conducive to the smooth operation of the device. Most of the filter press plates are placed on the upper surface of the device through the support plate, and the smoothness of sliding is poor, which is not conducive to extrusion dehydration and is not conducive to filtration. The separation of the plate takes out the mud, the cleaning efficiency is low, and most of them do not have a mud collection and export structure, which is not conducive to the fixed-point discharge of the mud, causing the mud to fall into the filtrate, and the mud is inconvenient to clean

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