Sludge dewatering and press-filtering device

Abstract

The invention discloses a sludge dewatering and press-filtering device, which comprises a press-filter box, a plurality of drumhead plates arranged on the press-filter box in parallel, a drive motor for pushing and pulling each drumhead plate to move, a fixedly arranged fixed rack, and a vibrator arranged on the fixed rack and used for vibrating and pulling each filter membrane. A filter membrane is arranged between each two adjacent drumhead plates; a water through hole penetrating through each drumhead plate is also formed in the lower end of each drumhead plate; the upper end of each filter membrane is connected with the vibrator; the lower end of each filter membrane is fixedly arranged on each drumhead plate on the lower part of each water through hole. Through the arrangement of the vibrator and the water through hole, when each drumhead plate squeeze sludge to separate, the vibrator pulls or vibrates each filter membrane so as to shake off a squeezed sludge cake on each filter membrane; since the water through hole is formed in the lower part, compared with a traditional water through hole formed in the middle, the sludge on the lower part of the filter membrane can be more easily shaken off, so that a better desliming technical effect is achieved; the sludge dewatering and press-filtering device is simple in structure, low in cost and applied to the field of press-filtering equipment.

Description

technical field [0001] The invention relates to the field of filter press equipment, in particular to a sludge dewatering filter press equipment. Background technique [0002] Sludge dehydration refers to 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 by 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%. [0003] At present, the more common sludge dewatering equipment mainly includes the following categories: [0004] 1. Plate and frame sludge dewatering machine: In a closed state, the sludge injected by the high-pressure pump is squeezed by the plate and frame, so that the water in the sludge is discharged through the filter clo...

AI Technical Summary

Problems solved by technology

[0005] However, since the water hole of the sludge dewatering machine on the market is set in the middle, when the two filter press plates are separated, the sludge cake on the filter membrane is not easy to fall off, especially the lower filter cloth is still bonded to the filter press plate Unable to separate, the sludge at the lower end of the filter cloth is not easy to fall off, causing blockage, which will affect the subsequent sludge dehydration and extrusion

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