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CN-122010385-A - Sewage solid-water separation equipment with spiral pushing mechanism

CN122010385ACN 122010385 ACN122010385 ACN 122010385ACN-122010385-A

Abstract

The application discloses sewage solid-water separation equipment with a spiral pushing mechanism, which comprises a shell, a filter cartridge, a spiral pushing shaft and a driving mechanism, wherein the shell is provided with a feed inlet, a slag discharging port and a liquid outlet, the filter cartridge is fixed in the shell and provided with a filter hole, the spiral pushing shaft is coaxially arranged in the filter cartridge in a penetrating way and provided with spiral blades, gaps are reserved between the outer edges of the blades and the inner wall of the filter cartridge, the driving mechanism is connected with the spiral pushing shaft to drive the spiral blades to rotate, the pitch of the spiral blades is reduced along the conveying direction, the surface of the spiral blades is provided with radial convex stripes, the inner wall of the filter cartridge is provided with a longitudinal guide rib, the shell is provided with a flushing ring pipe, a conical flaring slag discharging port and a hollow spiral pushing shaft, and the shell is internally provided with a ventilation channel. The application can improve the pushing smoothness and anti-blocking performance of high-water-content or viscous sludge.

Inventors

  • LIU TIANLUN
  • LOU WEI
  • YIN HAO
  • ZHOU ZILI
  • LI DANTING

Assignees

  • 湖南省和清环境科技有限公司

Dates

Publication Date
20260512
Application Date
20260306

Claims (8)

  1. 1. A sewage solid-water separation device with a spiral pushing mechanism is characterized by comprising a shell (1), a filter cartridge (5), a spiral pushing shaft (7) and a driving mechanism (9), wherein the shell (1) is of a hollow cylindrical structure, one end of the shell is provided with a feed inlet (2), the other end of the shell is provided with a slag discharging port (3), the bottom of the shell (1) is provided with a liquid outlet (4), the filter cartridge (5) is fixedly arranged in the middle of an inner cavity of the shell (1), a plurality of filtering holes (6) are formed in the wall of the filter cartridge (5), the spiral pushing shaft (7) is coaxially arranged inside the filter cartridge (5) in a penetrating mode, a continuous spiral blade (8) is arranged on the periphery of the spiral pushing shaft (7), a tiny gap is reserved between the outer edge of the spiral blade (8) and the inner wall of the filter cartridge (5), and the driving mechanism (9) is fixedly connected to the outer portion of the shell, and the output end of the driving mechanism is in transmission connection with one end of the spiral pushing shaft (7).
  2. 2. The sewage solid-water separation device with the spiral pushing mechanism of claim 1, wherein the screw pitch of the spiral blade (8) is gradually reduced along the material conveying direction, and the screw pitch near one end of the slag discharging port (3) is smaller than that near one end of the feeding port (2).
  3. 3. The solid-water separation equipment with the spiral pushing mechanism of claim 1, wherein the surface of the spiral blade (8) is provided with a plurality of raised stripes (11), the raised stripes (11) extend along the radial direction of the spiral blade (8), and the height of the raised stripes gradually decreases from the root of the spiral blade (8) to the edge.
  4. 4. The sewage solid-water separation device with the spiral pushing mechanism of claim 1, wherein the inner wall of the filter cartridge (5) is provided with a plurality of longitudinal guide ribs (12), the guide ribs (12) are axially arranged along the filter cartridge (5), the cross section of the guide ribs is trapezoid, the narrow end of the guide ribs faces the center of the filter cartridge (5), and the wide end of the guide ribs is fixedly connected with the inner wall of the filter cartridge (5) and has a smooth surface.
  5. 5. The solid-water sewage separation device with the spiral pushing mechanism of claim 1, wherein a flushing ring pipe (13) is arranged inside the shell (1) and outside the filter cylinder (5), the flushing ring pipe (13) is arranged around the periphery of the filter cylinder (5), a plurality of spray holes (14) facing the outer wall of the filter cylinder (5) are formed in the flushing ring pipe (13), and one end of the flushing ring pipe (13) is connected with an external water source through a pipeline.
  6. 6. The sewage solid-water separation device with the spiral pushing mechanism according to claim 1, wherein a conical flaring section (15) is arranged at the slag discharging port (3), the large end of the conical flaring section (15) is connected with the shell (1), the small end is used as a final discharging port, a wear-resistant lining layer (16) is arranged on the inner wall of the conical flaring section (15), and the wear-resistant lining layer (16) is made of a high polymer composite material.
  7. 7. The solid-water separation equipment with the spiral pushing mechanism is characterized in that the spiral pushing shaft (7) is of a hollow structure, a ventilation channel (17) is arranged in the spiral pushing shaft, one end of the ventilation channel (17) is connected with an external air source through a rotary joint (18), the other end of the ventilation channel extends to a position close to the slag discharging port (3) and is provided with a plurality of air outlet holes (19), and the air outlet holes (19) penetrate through the wall surface of the spiral pushing shaft (7).
  8. 8. The solid-water sewage separation device with the spiral pushing mechanism of claim 1, wherein the liquid outlet (4) is connected with a liquid collecting cavity (24), an inclined guide plate (25) is arranged in the liquid collecting cavity (24), the high end of the inclined guide plate (25) is fixed at the bottom of the shell (1), and the low end of the inclined guide plate faces the direction of the liquid outlet (4).

Description

Sewage solid-water separation equipment with spiral pushing mechanism Technical Field The invention relates to the technical field of special equipment for environmental protection, in particular to sewage solid-water separation equipment with a spiral pushing mechanism. Background The sewage solid-water separation equipment is a key device for separating solid impurities from liquid in sewage, and is widely applied to the fields of municipal sewage treatment, industrial wastewater treatment, environmental engineering and the like. The equipment generally realizes solid-liquid separation in a physical interception, gravity sedimentation or mechanical extrusion mode and the like so as to improve the subsequent treatment efficiency and reduce the environmental pollution load. Common solid-water separation equipment comprises a grid, a sedimentation tank, a centrifuge, a belt filter press and the like, wherein part of equipment adopts a spiral pushing structure to assist in deslagging so as to improve continuous operation capability and automation level. The spiral pushing mechanism pushes the trapped solid materials to the discharge port along the axial direction through rotary motion, and the smoothness of the filtering area is maintained. However, in practical application, the conventional sewage solid-water separation equipment with the spiral pushing mechanism has a certain limitation in the matching mode between the spiral pushing structure and the filtering component, and when sludge with high water content or high viscosity is treated, the problems of increased pushing resistance, unsmooth slag discharge or partial blockage easily occur, so that the continuous and stable operation and separation efficiency of the equipment are affected. Disclosure of Invention The invention aims to provide sewage solid-water separation equipment with a spiral pushing mechanism, which solves the problems in the background technology. The invention is realized in such a way that the sewage solid-water separation equipment with the spiral pushing mechanism comprises a shell, a filter cartridge, a spiral pushing shaft and a driving mechanism, wherein: The shell is of a hollow cylindrical structure, one end of the shell is provided with a feed inlet, the other end of the shell is provided with a slag discharge outlet, the bottom of the shell is provided with a liquid outlet, the filter cartridge is fixedly arranged in the middle of an inner cavity of the shell, the wall of the filter cartridge is provided with a plurality of through filter holes for filtering out liquid in sewage and guiding the liquid outlet, the spiral pushing shaft coaxially penetrates through the filter cartridge, the periphery of the spiral pushing shaft is provided with continuous spiral blades, a tiny gap is reserved between the outer edge of the spiral blades and the inner wall of the filter cartridge, the driving mechanism is fixedly connected to the outside of the shell, and the output end of the driving mechanism is in transmission connection with one end of the spiral pushing shaft and is used for driving the spiral pushing shaft to rotate. Optionally, the pitch of helical blade reduces along the material direction of delivery gradually, and the pitch that is close to slag notch one end is less than the pitch that is close to feed inlet one end to progressively compress mud volume in the material transportation process, improve dehydration efficiency and strengthen propelling movement power. Optionally, the surface of helical blade is equipped with a plurality of protruding stripes, and protruding stripe extends along helical blade's radial, and the height of protruding stripe reduces gradually from helical blade root to the edge to exert the scraping effect to the viscous sludge that adheres to cartridge filter inner wall in rotatory in-process, prevent that the filtration pore from blockking up. Optionally, the inner wall of cartridge filter is equipped with a plurality of vertical water conservancy diversion muscle, and water conservancy diversion muscle is arranged along cartridge filter axial, and the cross-section of water conservancy diversion muscle is trapezoidal, and its narrow end is towards cartridge filter center, wide end and cartridge filter inner wall fixed connection, and the surface of water conservancy diversion muscle is smooth for guide mud along axial displacement, reduce the frictional resistance between helical blade and the cartridge filter. Optionally, the inside washing ring canal that is located the cartridge filter outside that is equipped with of casing, wash the ring canal and encircle the cartridge filter periphery and arrange, set up a plurality of orifice towards cartridge filter outer wall on the washing ring canal, wash the one end of ring canal and pass through the outside water source of pipe connection for regularly back flush the cartridge filter outer wall, clear away the outside solid impurity that adher