Reciprocating walking type mud scraper for sewage treatment
By designing a reciprocating sludge scraper for sewage tanks, using stainless steel materials and turbulent flushing components, and driven by a stepper motor, the problems of low efficiency, poor stability, and unsatisfactory flushing effect of sludge scrapers were solved, achieving efficient and stable sewage treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG ZHENKE ECOLOGICAL ENVIRONMENT CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-23
Smart Images

Figure CN224388142U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a reciprocating sludge scraper for wastewater treatment tanks. Background Technology
[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. It uses various methods, including physical, chemical, and biological methods, to remove pollutants from wastewater, thereby reducing environmental pollution, protecting water resources, and enabling the recycling of water resources.
[0003] A sludge scraper is a mechanical device used in wastewater treatment to remove sludge from the bottom of sedimentation tanks and scum from the surface of the water. It scrapes the sludge from the bottom of the tank into a sludge collection trough or a central sludge hopper by mechanical scraping, and then discharges the sludge using the siphon principle or the pressure of a sludge pump.
[0004] However, existing sludge scrapers have the following problems: low scraping efficiency, failing to quickly and effectively remove sludge from the bottom of sewage tanks; poor stability during movement, prone to swaying, affecting scraping performance; and poor rinsing effect, failing to thoroughly clean sludge, causing inconvenience for subsequent treatment. To address these problems, this utility model provides a reciprocating sludge scraper for sewage treatment tanks, aiming to improve scraping efficiency, enhance movement stability, and optimize rinsing effect. Utility Model Content
[0005] In order to solve the problems existing in the prior art, the present invention provides a reciprocating sludge scraper for sewage treatment tanks.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] A reciprocating sludge scraper for sewage treatment includes a traveling truss 1, a turbulent flushing assembly 2 installed on the top of the traveling truss 1, a hanger assembly 3 installed on the bottom of the traveling truss 1, and a power assembly 5 installed at the bottom of the left and right ends of the traveling truss 1.
[0008] This utility model also has the following additional technical features:
[0009] As a further specific optimization of the technical solution of this utility model: the walking truss 1 includes a rectangular walkway plate 101, a jet flushing assembly 2 is installed on the top of the walkway plate 101, a hanger assembly 3 is installed on the bottom of the walkway plate 101, and a mud scraping assembly 4 is installed on the hanger assembly 3; protective fences 102 are vertically welded on the front and rear sides of the walkway plate 101, and parallel power component mounting frames 103 are welded to the bottom of the left and right ends of the walkway plate 101, with a power component 5 installed at the bottom of the power component mounting frame 103.
[0010] As a further specific optimization of the technical solution of this utility model: the turbulent flushing assembly 2 is arranged in multiple parallel groups; the turbulent flushing assembly 2 includes a main flushing water inlet pipe 201, a branch pipe 202 is installed and connected to the main flushing water inlet pipe 201, a booster water pump 203 is installed at the rear of the branch pipe 202, a booster water tank 204 is connected at the rear of the booster water pump 203, an extension water pipe 205 is connected at the rear of the booster water tank 204, an expansion water pipe 206 is connected to the bottom of the extension water pipe 205, and nozzles 207 are respectively installed at the bottom of the outer end of the expansion water pipe 206.
[0011] As a further specific optimization of the technical solution of this utility model: the hanger assembly 3 includes two vertically arranged hanger pipes 301, and a reinforcing steel pipe 303 is welded and fixed between the two hanger pipes 301 in a cross shape; each hanger pipe 301 has a connecting flange 302 welded to its top and bottom respectively, wherein the connecting flange 302 at the top is connected to the connecting flange at the bottom of the corridor plate 101, and the connecting flange 302 at the bottom is connected to the connecting flange at the top of the mud scraper assembly 4.
[0012] As a further specific optimization of the technical solution of this utility model: the sludge scraping assembly 4 includes two parallel sludge scraping blade mounting beams 401, and a number of short crossbeams 402 are welded between the two sludge scraping blade mounting beams 401 and the short crossbeams 402; a number of sets of sludge scraping blades 403 arranged in a U-shape are welded to the bottom of the sludge scraping blade mounting beams 401; a connecting flange is installed on the top of the sludge scraping blade mounting beams 401, and is connected to the connecting flange 302 at the bottom of the hanger assembly 3.
[0013] As a further specific optimization of the technical solution of this utility model: the power component 5 includes a stepper motor mounting bracket 501, which is welded and fixed to the bottom of the left and right ends of the corridor plate 101. A stepper motor 502 is installed on the stepper motor mounting bracket 501 by bolts. The stepper motor 502 is connected to the drive wheel 503. The two ends of the drive wheel 503 are installed on the bottom of one side of the power component mounting bracket 103 by bearing seats. A driven wheel 504 is installed on the bottom of the other side of the power component mounting bracket 103 by bearing seats.
[0014] Compared with the prior art, the advantages of this utility model are:
[0015] The reciprocating sludge scraper for sewage treatment has the advantages of compact structure, simple operation, high sludge scraping efficiency, and good cleaning effect. It can effectively solve the problems existing in the prior art and improve the overall efficiency and effect of sewage treatment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the walking truss 1 structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the jet flushing assembly 2 of this utility model;
[0019] Figure 4 This is a schematic diagram of the hanger assembly 3 of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the scraper assembly 4 of this utility model;
[0021] Figure 6 This is a schematic diagram of the power component 5 of this utility model;
[0022] Figure 7 This is a schematic diagram of the sludge scraper of this utility model installed on the sewage tank 6;
[0023] Figure 8 This is a schematic diagram of the sludge scraper of this utility model installed on the sewage tank 6;
[0024] Figure 9 This is a partially enlarged structural schematic diagram of the present invention.
[0025] Figure labeling: 1. Traveling truss, 2. Turbulent flushing assembly, 3. Hanger assembly, 4. Sludge scraper assembly, 5. Power assembly, 6. Sewage tank. Detailed Implementation
[0026] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.
[0027] A reciprocating sludge scraper for wastewater treatment includes a traveling truss 1, a turbulent flushing assembly 2 mounted on the top of the traveling truss 1, a hanger assembly 3 mounted on the bottom of the traveling truss 1, a sludge scraping assembly 4 mounted on the bottom of the hanger assembly 3, and power components 5 mounted on the bottom of both ends of the traveling truss 1. The reciprocating sludge scraper effectively removes sludge from the bottom of sedimentation tanks, reducing secondary pollution of water bodies by sludge, ensuring stable effluent quality, and facilitating subsequent sludge treatment units, thereby improving the overall efficiency and effectiveness of wastewater treatment.
[0028] The walking truss 1 includes a rectangular walkway plate 101. A jet flushing assembly 2 is installed on the top of the walkway plate 101, and a hanger assembly 3 is installed on the bottom of the walkway plate 101. Protective railings 102 are vertically welded to the front and rear sides of the walkway plate 101, and parallel power component mounting frames 103 are welded to the bottom of the left and right ends of the walkway plate 101. A power component 5 is installed at the bottom of the power component mounting frame 103.
[0029] The walkway plate 101, protective fence 102, and power component mounting frame 103 of the traveling truss 1 are all made of stainless steel, which has good corrosion resistance and load-bearing capacity, can adapt to the harsh environment in the sewage treatment tank, and extend the service life of the equipment. The design of the traveling truss 1 enables the entire sludge scraper to move back and forth stably in the sewage tank, ensuring the smooth operation of the sludge scraping work.
[0030] The turbulent flushing assembly 2 is arranged in multiple parallel groups. Each turbulent flushing assembly 2 includes a main flushing water inlet pipe 201, a branch pipe 202 connected to the main flushing water inlet pipe 201, a booster water pump 203 installed downstream of the branch pipe 202, a booster water tank 204 connected downstream of the booster water pump 203, an extension water pipe 205 connected downstream of the booster water tank 204, and an expansion water pipe 206 connected to the bottom of the extension water pipe 205. Nozzles 207 are installed at the bottom of the outer end of the expansion water pipe 206. The nozzles 207 are located on the side of the scraper blade 403.
[0031] The flushing water enters the branch pipe 202 through the main flushing water inlet pipe 201, and then enters the pressurized water pump 203 through the branch pipe 202. The pressurized water pump 203 pressurizes the flushing water and sends it into the pressurized water tank 204. The flushing water in the pressurized water tank 204 enters the extension pipe 206 through the extension water pipe 205, and then is sprayed downwards through the nozzle 207.
[0032] The design of the jet flushing assembly 2 not only washes away residual sludge from the scraping process of the scraper 403, but also cleans the scraper 403 to prevent sludge from accumulating on it and affecting the scraping effect. At the same time, the jet flushing assembly 2 can break up large pieces of sludge scraped off by the scraper 403 with a jet of water, and the sludge at the bottom can be discharged by an additional sludge pump.
[0033] The hanger assembly 3 includes two vertically arranged hanger pipes 301, and a reinforcing steel pipe 303 is welded and fixed between the two hanger pipes 301 in a cross shape; each hanger pipe 301 has a connecting flange 302 welded to its top and bottom respectively, wherein the top connecting flange 302 is connected to the bottom connecting flange of the corridor plate 101, and the bottom connecting flange 302 is connected to the top connecting flange of the mud scraper assembly 4.
[0034] The hanger pipe 301, reinforcing steel pipe 303, and connecting flange 302 of the hanger assembly 3 are all made of stainless steel, which has good corrosion resistance and load-bearing capacity, enhancing the overall strength of the hanger assembly 3 and enabling it to adapt to the harsh environment in the sewage treatment tank, thus extending the service life of the equipment. The design of the hanger assembly 3 allows the entire sludge scraper to move stably back and forth within the sewage tank, ensuring the smooth operation of the sludge scraping work.
[0035] The sludge scraping assembly 4 includes two parallel sludge scraper mounting beams 401, and several short crossbeams 402 are welded between the two sludge scraper mounting beams 401; several sets of sludge scrapers 403 arranged in a U-shape are welded to the bottom of the sludge scraper mounting beams 401 and the short crossbeams 402; a connecting flange is installed on the top of the sludge scraper mounting beams 401, and is connected to the connecting flange 302 at the bottom of the hanger assembly 3.
[0036] The scraper assembly 4's scraper blade mounting beam 401 and short crossbeam 402 are both made of stainless steel, possessing excellent corrosion resistance and load-bearing capacity. This enhances the overall strength of the scraper assembly 4, enabling it to withstand the harsh environment of wastewater treatment ponds and extending the equipment's service life. The scraper blades 403 of the scraper assembly 4 are arranged in a U-shape. Firstly, compared to traditional single or parallel scraper blades 403, the scraper blades 403 are stronger. Secondly, the U-shape allows for double scraping, resulting in more effective sludge collection.
[0037] The power assembly 5 includes a stepper motor mounting bracket 501, which is welded and fixed to the bottom of the left and right ends of the corridor plate 101. A stepper motor 502 is mounted on the stepper motor mounting bracket 501 by bolts. The stepper motor 502 is connected to the drive wheel 503. The two ends of the drive wheel 503 are mounted on the bottom of one side of the power assembly mounting bracket 103 by bearing seats. A driven wheel 504 is mounted on the bottom of the other side of the power assembly mounting bracket 103 by bearing seats.
[0038] Guide rails are installed on both sides of the top of the sewage tank 6. The driven wheel 504 and the driving wheel 503 are both located on the guide rails. The stepper motor 502 of the power assembly 5 controls the rotation of the driving wheel 503, which enables the walking truss 1 to move back and forth in the sewage tank. The stepper motor 502 has the advantages of high precision and simple control. It can rotate in both forward and reverse directions, which can ensure that the sludge scraper performs reciprocating sludge scraping operations at a predetermined speed.
[0039] In summary, the reciprocating sludge scraper for sewage treatment of this utility model has the advantages of compact structure, simple operation, high sludge scraping efficiency, and good cleaning effect. It can effectively solve the problems existing in the prior art and improve the overall efficiency and effect of sewage treatment.
[0040] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
Claims
1. A reciprocating sludge scraper for sewage treatment tanks, characterized in that: It includes a traveling truss (1), a turbulent flushing assembly (2) installed on the top of the traveling truss (1), a hanger assembly (3) installed at the bottom of the traveling truss (1), a mud scraping assembly (4) installed at the bottom of the hanger assembly (3), and a power assembly (5) installed at the bottom of the left and right ends of the traveling truss (1).
2. The reciprocating sludge scraper for sewage treatment tanks according to claim 1, characterized in that: The walking truss (1) includes a rectangular walkway plate (101), a jet flushing assembly (2) is installed on the top of the walkway plate (101), a hanger assembly (3) is installed on the bottom of the walkway plate (101), and a mud scraper assembly (4) is installed on the hanger assembly (3); protective fences (102) are vertically welded on the front and rear sides of the walkway plate (101), and parallel power component mounting frames (103) are welded to the bottom of the left and right ends of the walkway plate (101), and a power component (5) is installed at the bottom of the power component mounting frame (103).
3. The reciprocating sludge scraper for sewage treatment tanks according to claim 1, characterized in that: The turbulent flushing assembly (2) is arranged in multiple parallel groups; the turbulent flushing assembly (2) includes a main flushing water inlet pipe (201), a branch pipe (202) is installed and connected to the main flushing water inlet pipe (201), a booster water pump (203) is installed at the rear of the branch pipe (202), a booster water tank (204) is connected at the rear of the booster water pump (203), an extension water pipe (205) is connected at the rear of the booster water tank (204), an extension water pipe (206) is connected to the bottom of the extension water pipe (205), and nozzles (207) are installed at the bottom of the outer end of the extension water pipe (206).
4. The reciprocating sludge scraper for sewage treatment tanks according to claim 1, characterized in that: The hanger assembly (3) includes two vertically arranged hanger pipes (301), and a reinforcing steel pipe (303) is welded and fixed between the two hanger pipes (301) in a cross shape; each hanger pipe (301) has a connecting flange (302) welded to its top and bottom respectively, wherein the connecting flange (302) at the top is connected to the connecting flange at the bottom of the corridor plate (101), and the connecting flange (302) at the bottom is connected to the connecting flange at the top of the mud scraper assembly (4).
5. The reciprocating sludge scraper for sewage treatment tanks according to claim 1, characterized in that: The scraper assembly (4) includes two parallel scraper mounting beams (401), and several short crossbeams (402) are welded between the two scraper mounting beams (401); several sets of scraper blades (403) arranged in a U-shape are welded to the bottom of the scraper mounting beams (401) and the short crossbeams (402); a connecting flange is installed on the top of the scraper mounting beams (401), and is connected to the connecting flange (302) at the bottom of the hanger assembly (3).
6. The reciprocating sludge scraper for sewage treatment tanks according to claim 1, characterized in that: The power assembly (5) includes a stepper motor mounting bracket (501), which is welded and fixed to the bottom of the left and right ends of the corridor plate (101). A stepper motor (502) is mounted on the stepper motor mounting bracket (501) by bolts. The stepper motor (502) is connected to the drive wheel (503). The two ends of the drive wheel (503) are mounted on the bottom of one side of the power assembly mounting bracket (103) by bearing seats. A driven wheel (504) is mounted on the bottom of the other side of the power assembly mounting bracket (103) by bearing seats.