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CN-224207603-U - Multi-level medium filtering component and domestic sewage treatment device

CN224207603UCN 224207603 UCN224207603 UCN 224207603UCN-224207603-U

Abstract

The utility model discloses a multi-level medium filtering component and a domestic sewage treatment device, which belong to the technical field of sewage treatment, wherein the multi-level medium filtering component comprises a plurality of baffles, a plurality of fixing screws and a plurality of limit nuts, which are distributed in an up-down staggered way, the baffles are formed by supporting flat plates and supporting inclined plates and are enclosed to form a hexagonal cavity, the fixing screws penetrate through guide holes of the baffles, the distance between the baffles can be adjusted by matching with the limit nuts and are fixed, a first filtering mechanism, the multi-level medium filtering component and a second filtering mechanism are sequentially arranged in a sewage treatment box along the sewage flow direction, the first filtering mechanism realizes impurity interception through a transverse grid, a longitudinal grid and hooks, the second filtering mechanism realizes fine filtration through a drawable plugboard and a filter screen, and a chute at the bottom of the sewage treatment box is matched with a sewage discharge pipe to realize the sludge discharge.

Inventors

  • CHEN MENGZHEN
  • LIU JIWEI

Assignees

  • 山东师范大学

Dates

Publication Date
20260508
Application Date
20260121

Claims (8)

  1. 1. A multi-level media filtration assembly, comprising: A plurality of partition boards (5), wherein the partition boards (5) are distributed in a staggered way up and down; Each partition board (5) comprises a plurality of support flat boards (502) and a support inclined board (501), the support flat boards (502) are fixedly connected with the support inclined board (501), two adjacent upper and lower partition boards (5) are enclosed to form a hexagonal cavity, gaps for filling filter media and circulating sewage are reserved between the two adjacent partition boards (5), and a plurality of guide holes (503) are formed in each support flat board (502); A plurality of fixing screws (6), wherein the plurality of fixing screws (6) are arranged along the vertical direction; The fixing screw (6) penetrates through the guide holes (503) of all the partition boards (5), so that the partition boards (5) can axially slide along the fixing screw (6); And the plurality of limit nuts (23) are respectively and correspondingly arranged above and below the partition plate (5), and the limit nuts (23) are sleeved on the outer wall of the fixing screw (6) in a threaded manner and are used for axially limiting and fixing the partition plate (5).
  2. 2. A domestic sewage treatment apparatus comprising a sewage treatment tank (1), and a multi-stage media filter assembly according to claim 1; The sewage treatment tank (1) is internally provided with a first filtering mechanism, a multi-level medium filtering assembly and a second filtering mechanism in sequence along the sewage flowing direction, and the bottom end of a fixing screw (6) of the multi-level medium filtering assembly is fixedly connected with the inner wall of the bottom of the sewage treatment tank (1).
  3. 3. A domestic sewage treatment apparatus according to claim 2, wherein the first filtering means comprises a rectangular frame (3) and an interception assembly; The inner walls of two sides of the sewage treatment box (1) are provided with strip-shaped grooves (13) which are matched with the rectangular frames (3), the rectangular frames (3) are slidably clamped between the two corresponding strip-shaped grooves (13), and the rectangular frames can be pulled and detached along the length direction of the strip-shaped grooves (13); The interception component is fixedly arranged in the rectangular frame (3), the interception component comprises a transverse grating (21) and a plurality of longitudinal gratings (20), the transverse grating (21) is arranged along the horizontal direction, the longitudinal gratings (20) are respectively and fixedly arranged at the top and the bottom of the transverse grating (21), and the longitudinal gratings (20) are vertically staggered with the transverse grating (21); a plurality of hooks (22) for intercepting soft fiber impurities are fixedly arranged on the outer side of each longitudinal grating (20).
  4. 4. A domestic sewage treatment device according to claim 2, wherein the second filtering means comprises a plugboard (7) and a filter screen (10); the inner wall of the top of the sewage treatment box (1) is provided with a slot (19) matched with the plugboard (7), and the plugboard (7) is connected inside the slot (19) in a sliding way; A rectangular hole (11) communicated with the slot (19) is formed in one side wall of the sewage treatment box (1), and the rectangular hole (11) is used for drawing the plugboard (7); The filter screen (10) is fixedly arranged on one side of the plugboard (7) facing the multi-level medium filtering component; a round hole (14) communicated with the slot (19) is formed in one side wall of the sewage treatment box (1), and the round hole (14) is fixedly communicated with the drain pipe (18) to discharge sewage filtered by the filter screen (10).
  5. 5. The domestic sewage treatment device according to claim 2, wherein a chute (16) is formed in the inner wall of the bottom of the sewage treatment tank (1), and the chute (16) is inclined toward the sewage discharge side along the sewage flow direction; The top of the sewage treatment box (1) is fixedly provided with a sewage discharge pipe (15), and the bottom end of the sewage discharge pipe (15) is communicated with a chute (16) and is used for discharging precipitated sludge.
  6. 6. The domestic sewage treatment device according to claim 2, wherein the outer wall of the sewage treatment tank (1) is integrally formed with a plurality of reinforcing plates (8), and the reinforcing plates (8) are uniformly distributed along the circumferential direction of the sewage treatment tank (1).
  7. 7. The domestic sewage treatment device according to claim 2, wherein two symmetrically arranged rectangular grooves (12) are formed in the top of the sewage treatment tank (1), mounting plates (25) are clamped in the two rectangular grooves (12), a plurality of mounting holes (24) are formed in the mounting plates (25), and the mounting plates (25) are fixed in the rectangular grooves (12) through the mounting holes (24) by fasteners; And a triangular inclined plate (4) is fixedly connected between the two mounting plates (25), and the triangular inclined plate (4) is positioned on the water inlet side of the uppermost partition plate (5) in the multi-level medium filtering assembly and is used for guiding sewage.
  8. 8. The domestic sewage treatment device according to claim 4, wherein the insert plate (7) is internally provided with an operation hole (17).

Description

Multi-level medium filtering component and domestic sewage treatment device Technical Field The utility model relates to the technical field of domestic sewage treatment, in particular to a multi-level medium filtering component and a domestic sewage treatment device. Background In the domestic sewage treatment process, filtration is a key link for removing suspended impurities and improving the quality of effluent. The filtering system of the existing domestic sewage treatment device has the defects that in the aspect of a multi-level filtering structure, the intervals of the filtering layers of the traditional multi-layer filtering device are mostly fixedly arranged, the intervals cannot be flexibly adjusted according to the water quality difference and the filtering requirement of treated sewage, so that the application range of the device is limited, meanwhile, the filtering layers are installed and detached by adopting an integrated fixing structure, and when the medium or filler in the filtering layers needs to be replaced and cleaned, the whole filtering structure needs to be disassembled, so that the operation is complicated, and the time and the labor are wasted. In the pretreatment filtering link, the primary filtering structure of the conventional filtering device is designed by adopting a single grid, so that only impurities with larger particle sizes can be intercepted, the interception effect on soft fiber impurities is poor, the impurities easily enter a subsequent filtering unit along with water flow to cause subsequent filter material blockage, the stable operation of a filtering system is influenced, the primary filtering structure is mainly fixedly installed, the subsequent cleaning and maintenance are inconvenient, the accumulation of the impurities easily causes the blockage of a water flow channel after long-term use, and the filtering flux is reduced. Disclosure of utility model The utility model aims to solve the defects that the interval of filter layers of the traditional multi-layer filter device in the prior art is mostly fixed, the interval cannot be flexibly adjusted according to the water quality difference and the filter requirement of treated sewage, and the interception effect of soft fiber impurities is poor. In order to achieve the above purpose, the present utility model adopts the following technical scheme: A multi-level media filtration assembly comprising: The plurality of partition boards are vertically staggered, each partition board comprises a plurality of support flat boards and a support inclined board, the support flat boards are fixedly connected with the support inclined boards, two adjacent partition boards are enclosed to form a hexagonal cavity, gaps for filling filter media and circulating sewage are reserved between the two adjacent partition boards, and a plurality of guide holes are formed in each support flat board; The fixing screws are arranged along the vertical direction and penetrate through the guide holes of all the partition plates, so that the partition plates can axially slide along the fixing screws; And the upper part and the lower part of each baffle are respectively and correspondingly provided with at least one limiting nut, and the limiting nuts are sleeved on the outer wall of the fixing screw rod in a threaded manner and are used for axially limiting and fixing the baffle. A domestic sewage treatment device comprises a sewage treatment box and a multi-level medium filtering component as described above; Connecting flanges are respectively and fixedly arranged on two opposite side walls of the sewage treatment box, and one ends of the two connecting flanges, which are far away from the sewage treatment box, are respectively and fixedly communicated with a water inlet pipe and a water outlet pipe; The sewage treatment box is internally provided with a first filtering mechanism, a multi-level medium filtering assembly and a second filtering mechanism in sequence along the sewage flowing direction, and the bottom end of a fixing screw of the multi-level medium filtering assembly is fixedly connected with the inner wall of the bottom of the sewage treatment box. In one possible design, the first filtering mechanism includes a rectangular frame and an interception component; The inner walls of the two sides of the sewage treatment box are provided with strip-shaped grooves matched with the rectangular frames, and the rectangular frames are slidably clamped between the two corresponding strip-shaped grooves and can be pulled and detached along the length direction of the strip-shaped grooves; The interception component is fixedly arranged in the rectangular frame and comprises a transverse grid and a plurality of longitudinal grids, the transverse grids are arranged along the horizontal direction, the longitudinal grids are respectively and fixedly arranged at the top and the bottom of the transverse grids, and the longitudinal grids are v