Helix extrusion type sludge dehydrator

A sludge dewatering machine and screw extrusion technology, applied in the direction of dehydration/drying/concentrated sludge treatment, etc., can solve the problems of clogged water outlet gap, failure to discharge in time, and reduced processing capacity, so as to solve blockage and ensure smooth water outlet Effect

Active Publication Date: 2010-07-21
ZHEJIANG DEAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the sludge dewatering machine is working, if the sludge adsorbed on the dynamic and static filter cannot be cleaned in time, it will block the water outlet gap between the dynamic and static filter over time, which will seal the outlet water in the press filter of the device The central area cannot be discharged in time, and at the same time, it will also cause resistance to water intake, which directly leads to a reduction in processing capacity and cannot meet the use requirements

Method used

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  • Helix extrusion type sludge dehydrator
  • Helix extrusion type sludge dehydrator
  • Helix extrusion type sludge dehydrator

Examples

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] Such as figure 1 , figure 2 , image 3 As shown, the screw extrusion sludge dewatering machine includes an organic base 1, a water inlet part 13, a mud outlet part 14, a water outlet part, a screw shaft 2 that runs through the machine base 1 and has a helical blade 21 on the periphery, and A filter group composed of a plurality of annular static filter discs 3 and annular dynamic filter discs 4 intersecting and spaced on the periphery of the screw shaft 2;

[0018] Wherein, the machine base 1 includes a fixed frame 12 and a plurality of parallel support plates 11 fixed on the fixed frame 12. In this embodiment, three support plates 11 are provided, and the front end of the screw shaft 2 Part 22 penetrates through the through hole on the support plate 11 on the front side in the machine base 1, and a back pressure plate 5 is also fix...

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Abstract

The invention relates to a helix extrusion type sludge dehydrator. Multiple first friction convex ribs (41) are evenly spaced and distributed along the circumference on both sides of each moving filter leaf (4). The space between two adjacent first friction convex ribs (41) is larger than the width of the first friction convex rib (41). Multiple second friction convex ribs (31) are also evenly spaced and distributed along the circumference on both sides of each non-moving filter leaf (3). The space between adjacent two second friction convex ribs (31) is larger than the width of the second friction convex rib (31). Compared with the prior art, the first friction convex rib on the moving filter leaf of the invention can contact and rub with the side of adjacent non-moving filter leaf. Sludge can be scraped down by the first friction convex ribs. Furthermore, the sludge can also be scraped down by the second friction convex ribs of the non-moving filter leaf. The invention can well solve the problem of blocking between the moving filter leaf and the non-moving filter leaf. The invention effectively guarantees the space between the moving filter leaf and the non-moving filter leaf, and smooth water flowing out of the sludge dehydrator.

Description

technical field [0001] The invention relates to a device for solid-liquid separation of sewage and sludge, in particular to a screw extrusion sludge dehydrator. Background technique [0002] Existing devices for solid-liquid separation include vacuum filters, pressurized filters, centrifugal dehydrators, belt filter presses, plate-and-frame filter presses, etc. Due to the use of filter screens, sludge It is easy to stay in the mesh of the filter screen to block the filter screen, reduce the efficiency of solid-liquid separation, and the service life is short, which also brings a lot of trouble to the maintenance work of the device. Therefore, a new screw extrusion sludge dewatering machine was invented, such as the applicant's previous Chinese patent "Screw Extrusion Sludge Dewatering Machine", whose patent number is ZL200820168066.1 (the announcement number is CN201309880Y) , has just disclosed such a technical solution. [0003] The screw extrusion sludge dewatering mach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12
Inventor 俞建德
Owner ZHEJIANG DEAN TECH
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