Municipal sewage treatment-based sludge collecting device

By designing drying devices and classification devices in the sludge collection device after sewage treatment, the problem of hot air being difficult to fully contact sludge and garbage disposal is solved, and the effect of efficient drying and sorting storage is achieved.

CN222556786UActive Publication Date: 2025-03-04LONGGANG ZHONGHAO MUNICIPAL CONSTRUCTION CO LTD
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Patent Information

Application Number
CN202421188834.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2025-03-04
Estimated Expiration
2034-05-28

AI Technical Summary

Technical Problem

The existing sludge slag collection device after sewage treatment has difficulty in fully contacting the sludge slag in hot air, resulting in low drying efficiency and failure to realize the classification and storage of garbage, resulting in insufficient treatment.

Method used

A sludge collection device based on municipal sewage treatment is designed, using drying device and classification device. The drying device uses a hot air fan and a spiral hob to ensure that the hot air is fully in contact with the sludge and achieves full drying. The sorting device realizes the sorting and storage of mud slag and solid waste through cylinders and extrusion blocks.

Benefits of technology

Through sufficient hot air contact and stirring, the drying efficiency of the sludge is improved and the agglomeration phenomenon is avoided. At the same time, it realizes the effective classification and storage of sludge and solid waste, ensuring the thoroughness of garbage disposal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sewage treatment, in particular to a municipal sewage treatment-based sludge collecting device which comprises a base, a supporting device is arranged above the base, a drying device is arranged in a first cavity, and a classifying device is arranged between the base and a first collecting box. And a sludge collecting box and a solid garbage collecting box are arranged below the classifying device. According to the sludge drying device, the drying device is arranged, so that hot air can be in full contact with sludge, and the full drying effect is achieved; and meanwhile, a first motor is started, so that the heat collection shell rotates, the hob is driven to rotate, and the sludge in the heat collection shell can be fully stirred, can be fully in contact with hot air and can be fully dried. And by means of the arranged classifying device, the air cylinder is started, solid waste is discharged into the sludge collecting box through a third discharging opening, the solid waste which is not filtered out is discharged into the solid waste collecting box through a second discharging opening, classified storage of the waste is achieved, and it is guaranteed that the waste is thoroughly treated.
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Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sludge collection device based on municipal sewage treatment. Background Art

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for drainage into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical treatment, and catering, and is increasingly entering the daily lives of ordinary people.

[0003] For example, the authorization announcement number "CN214115337U" is named a device for collecting mud residue after sewage treatment. Although the drying device is set up, the driving motor drives the shaft to rotate, the shaft drives the tugboat to rotate, the tugboat drives the sleeve to rotate, and the sleeve rotation drives the cylinder to rotate. At the same time, the hot air blower inputs hot air to heat the mud residue in the cylinder, and the heat is evenly distributed, which accelerates the evaporation of water and increases efficiency. However, since the hot air outlet is set on the outside of the roller, the hot air only blows to the outer surface of the cylinder, and the mud residue will clump, and the mud residue cannot be fully dried; after drying, there is still solid waste in the mud residue, which is not classified and stored, resulting in incomplete garbage treatment. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a sludge collection device based on municipal sewage treatment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sludge collection device based on municipal sewage treatment is designed, comprising a base, a sludge raw material box is provided on the upper surface of the base, a sludge pump is provided on the upper surface of the base, a feed pipe is provided on the side surface of the sludge pump close to the sludge raw material box, an end of the feed pipe away from the sludge pump penetrates one side surface of the sludge raw material box, a discharge pipe is provided on the upper surface of the sludge pump, a supporting device is provided above the base, a first collecting box is provided on the upper part of the surface of the supporting device, the first collecting box is arranged below the discharge pipe, a first cavity is provided inside the first collecting box, a drying device is provided inside the first cavity, two feed ports are provided at the end of the discharge pipe away from the sludge pump, the discharge pipe is communicated with the two feed ports, one end of the two feed ports away from the discharge pipe penetrates the upper surface of the first collecting box, and the two feed ports are communicated with the first cavity, a classification device is provided between the base and the first collecting box, the classification device is fixed by the supporting device, and a sludge collection box and a solid waste collection box are provided below the classification device.

[0007] Preferably, the drying device includes a heat collecting shell, a plurality of rollers are provided in an annular shape on the surface of the heat collecting shell, and the plurality of rollers are all spiral-shaped, a first motor is provided above the first collecting box, the first motor is fixedly connected to the upper surface of the heat collecting shell, a first motor shaft is provided on the lower surface of the first motor, one end of the first motor shaft passes through the first collecting box and is fixedly connected to the upper surface of the heat collecting shell, a second cavity is provided inside the heat collecting shell, a plurality of first air holes are provided on the upper inner wall of the second cavity, a plurality of second air holes are provided on the upper inner wall of the first cavity, and the heat collecting shell is provided with a plurality of first air holes. A blocking block is provided in a ring shape on the outside of the shell, and the upper end of the blocking block is connected to the upper inner wall of the first cavity. A hot air blower is provided below the first collecting box, and a plurality of first fixing blocks are provided on the upper surface of the hot air blower, and one end of the plurality of first fixing blocks away from the hot air blower is connected to the lower surface of the first collecting box. A hot air duct is provided on the upper surface of the hot air blower, and a hot air through hole is provided on the lower inner wall of the second cavity, and the hot air duct is connected to the hot air through hole. Two through holes are provided on the lower inner wall of the first cavity, and first discharge ports are provided inside the two through holes, and first solenoid valves are provided inside the two first discharge ports.

[0008] Preferably, the supporting device includes a first vertical block and a second vertical block, the side surface of the first vertical block is provided with a first horizontal block, the side surface of the first vertical block is provided with a plurality of second horizontal blocks, the plurality of second horizontal blocks are all above the first horizontal block, a second fixed block is provided at one end of the plurality of second horizontal blocks away from the first vertical block, one side surface of the second fixed block is connected to the side surface of the first collecting box, and a third horizontal block is provided at the upper end of the second vertical block.

[0009] Preferably, a first diagonal brace is provided between the first vertical block and the first horizontal block, and a triangle is formed between the first vertical block, the first horizontal block and the first diagonal brace; a second diagonal brace is provided between the first vertical block and the second horizontal block, and a triangle is formed between the first vertical block, the second horizontal block and the second diagonal brace; a third diagonal brace is provided between the second vertical block and the third horizontal block, and a triangle is formed between the second vertical block, the third horizontal block and the third diagonal brace.

[0010] Preferably, the classification device includes a second collection box, a third cavity is provided inside the second collection box, a cylinder is provided on the surface of the supporting device, a plurality of through holes are provided around the inner wall of the third cavity close to the cylinder, a telescopic rod is provided on the surface of the cylinder close to the second collection box, the telescopic rod passes through the side surface of the second collection box, an extrusion block is provided at the end of the second collection box away from the cylinder, a plurality of through holes are provided around the surface of the extrusion block, the extrusion block is slidably connected to the inner wall of the third cavity, a filter plate is provided in the middle of the third cavity, and the A through hole is provided on the lower inner wall of the three cavities, and the through hole is above the solid waste collection box. A second discharge port is provided inside the through hole, and a second solenoid valve is provided inside the second discharge port. A through hole is provided on the lower inner wall of the third cavity, and the through hole is above the sludge collection box. A third discharge port is provided inside the through hole, and a third solenoid valve is provided inside the third discharge port. A second motor is provided above the cylinder, and one side surface of the second motor is connected to the surface of the supporting device, and one side surface of the second motor is provided with a second motor shaft, and a cover plate is provided at the end of the second motor shaft away from the second motor.

[0011] Preferably, a plurality of shock-absorbing pads are provided on the lower surface of the base, and the plurality of shock-absorbing pads are arranged around the base.

[0012] The utility model proposes a device for collecting sludge after municipal sewage treatment, and its beneficial effects are: a drying device is set up, a hot air blower blows out hot air through a hot air duct, and then passes through the hot air through-hole to enter the second cavity, and then disperses through the first air hole and the second air hole, and the hot air is blown from the inside to the outside, so that the hot air can fully contact the sludge to achieve the effect of sufficient drying; at the same time, the first motor is started to rotate the first motor shaft, and since the first motor shaft is fixedly connected to the upper surface of the heat collecting shell, the heat collecting shell is rotated, driving the roller to rotate, and the roller is spiral-shaped, which can fully stir the internal sludge without agglomeration, so that the sludge can fully contact the hot air and be fully dried. A classification device is set up, and the sludge treated by the drying device is discharged into the second collecting box. By starting the cylinder, the telescopic rod is extended, which drives the extrusion block to push the sludge forward. The sludge is filtered by the filter plate, and the filtered out is the sludge, which is discharged into the sludge collection box through the third discharge port. The unfiltered is solid waste, which is discharged into the solid waste collection box through the second discharge port, thereby realizing the classified storage of garbage and ensuring the thoroughness of garbage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front cross-sectional view of the utility model;

[0014] Figure 2 This is an enlarged view of position A of the utility model;

[0015] Figure 3This is an enlarged view of position B of the utility model;

[0016] Figure 4 This is an enlarged view of position C of the utility model;

[0017] Figure 5 It is an enlarged view of position D of the present utility model.

[0018] In the figure: base 1, mud raw material box 2, mud pump 3, feed pipe 4, discharge pipe 5, first collecting box 6, first cavity 7, feed port 8, mud collection box 9, solid waste collection box 10, heat collecting shell 11, first motor 12, first motor shaft 13, second cavity 14, first air vent 15, second air vent 16, shielding block 17, hot air blower 18, first fixing block 19, hot air pipe 20, hot air through hole 21, first discharge port 22, first solenoid valve 23, first A vertical block 24, a second vertical block 25, a first horizontal block 26, a second horizontal block 27, a second fixed block 28, a third horizontal block 29, a first diagonal brace 30, a second diagonal brace 31, a third diagonal brace 32, a second collecting box 33, a third cavity 34, a cylinder 35, a telescopic rod 36, an extrusion block 37, a filter plate 38, a second discharge port 39, a second solenoid valve 40, a third discharge port 41, a third solenoid valve 42, a second motor 43, a second motor shaft 44, a cover plate 45, a shock absorbing pad 46, and a hob 47. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-5A sludge collection device based on municipal sewage treatment includes a base 1, a sludge raw material box 2 is provided on the upper surface of the base 1, the sludge raw material is first stored in the sludge raw material box 2, a sludge pump 3 is provided on the upper surface of the base 1, and a feeding pipe 4 is provided on the side surface of the sludge pump 3 close to the sludge raw material box 2, and the end of the feeding pipe 4 away from the sludge pump 3 passes through the side surface of the sludge raw material box 2 to ensure that the sludge is extracted from the sludge raw material box 2. A discharge pipe 5 is provided on the upper surface of the mud pump 3, a support device is provided above the base 1, a first collecting box 6 is provided on the upper part of the support device surface, the first collecting box 6 is arranged below the discharge pipe 5, a first cavity 7 is provided inside the first collecting box 6, a drying device is provided inside the first cavity 7, two feed ports 8 are provided at the end of the discharge pipe 5 away from the mud pump 3, the discharge pipe 5 is connected to the two feed ports 8, one end of the two feed ports 8 away from the discharge pipe 5 passes through the upper surface of the first collecting box 6, and the two feed ports 8 are connected to the first cavity 7, ensuring that the mud pump 3 can pump the mud residue raw material from the mud residue raw material box 2 into the first collecting box 6. A classification device is provided between the base 1 and the first collecting box 6, the classification device is fixed by the support device, and a mud residue collection box 9 and a solid waste collection box 10 are provided below the classification device.

[0021] The drying device includes a heat collecting shell 11, and a plurality of rollers 47 are provided in an annular shape on the surface of the heat collecting shell 11. The plurality of rollers 47 are all spiral-shaped, so that the rollers 47 can drive the mud residue when rotating. A first motor 12 is provided above the first collecting box 6, and the first motor 12 is fixedly connected to the upper surface of the heat collecting shell 11. A first motor shaft 13 is provided on the lower surface of the first motor 12, and one end of the first motor shaft 13 passes through the first collecting box 6 and is fixedly connected to the upper surface of the heat collecting shell 11, so as to ensure that after the first motor 12 is started, the heat collecting shell 11 also rotates. A second cavity 14 is provided inside the heat collecting shell 11, and a plurality of first air holes 15 are provided on the inner wall of the second cavity 14, and a plurality of second air holes 16 are provided on the inner wall of the first cavity 7. The first air holes 15 and the second air holes 16 play a role in balancing the air pressure. A shielding block 17 is provided in an annular shape on the outside of the heat collecting housing 11, and the shielding block 17 can prevent mud from entering the second cavity 14. The upper end of the shielding block 17 is connected to the upper inner wall of the first cavity 7. A hot air blower 18 is provided below the first collecting box 6. A plurality of first fixing blocks 19 are provided on the upper surface of the hot air blower 18. One end of the plurality of first fixing blocks 19 away from the hot air blower 18 is connected to the lower surface of the first collecting box 6. The hot air blower 18 is fixed to the heat collecting housing 11 through the first fixing block 19. A hot air duct 20 is provided on the upper surface of the hot air blower 18. A hot air through hole 21 is provided on the lower inner wall of the second cavity 14. The hot air duct 20 is connected with the hot air through hole 21 to ensure that hot air enters the second cavity 14 through the hot air duct 20 and the hot air through hole 21. Two through holes are provided on the lower inner wall of the first cavity 7. First discharge ports 22 are provided inside the two through holes. First solenoid valves 23 are provided inside the two first discharge ports 22 to ensure that mud is discharged through the first solenoid valve 23.

[0022] The supporting device includes a first vertical block 24 and a second vertical block 25. The side surface of the first vertical block 24 is provided with a first horizontal block 26. The side surface of the first vertical block 24 is provided with a plurality of second horizontal blocks 27. The plurality of second horizontal blocks 27 are all above the first horizontal block 26. A second fixed block 28 is provided at one end of the plurality of second horizontal blocks 27 away from the first vertical block 24. One side surface of the second fixed block 28 is connected to the side surface of the first collecting box 6. A third horizontal block 29 is provided at the upper end of the second vertical block 25.

[0023] A first diagonal brace 30 is provided between the first vertical block 24 and the first horizontal block 26, and a triangle is formed between the first vertical block 24, the first horizontal block 26 and the first diagonal brace 30, and the triangular structure is more solid and increases stability; a second diagonal brace 31 is provided between the first vertical block 24 and the second horizontal block 27, and a triangle is formed between the first vertical block 24, the second horizontal block 27 and the second diagonal brace 31, and the triangular structure is more solid and increases stability; a third diagonal brace 32 is provided between the second vertical block 25 and the third horizontal block 29, and a triangle is formed between the second vertical block 25, the third horizontal block 29 and the third diagonal brace 32, and the triangular structure is more solid and increases stability.

[0024] The classification device includes a second collection box 33, a third cavity 34 is provided inside the second collection box 33, a cylinder 35 is provided on the surface of the support device, and a plurality of through holes are provided around the inner wall of the third cavity 34 near the cylinder 35 to ensure balanced air pressure. A telescopic rod 36 is provided on the surface of the cylinder 35 near the second collection box 33, and the telescopic rod 36 penetrates the side surface of the second collection box 33. An extrusion block 37 is provided at one end of the second collection box 33 away from the cylinder 35, and a plurality of through holes are provided around the surface of the extrusion block 37 to ensure balanced air pressure. The extrusion block 37 is slidably connected to the inner wall of the third cavity 34, a filter plate 38 is provided in the middle of the third cavity 34, a through hole is provided on the lower inner wall of the third cavity 34, the through hole is above the solid waste collection box 10, a second discharge port 39 is provided inside the through hole, a second solenoid valve 40 is provided inside the second discharge port 39, a through hole is provided on the lower inner wall of the third cavity 34, the through hole is above the sludge collection box 9, a third discharge port 41 is provided inside the through hole, a third solenoid valve 42 is provided inside the third discharge port 41, a second motor 43 is provided above the cylinder 35, one side surface of the second motor 43 is connected to the surface of the supporting device, one side surface of the second motor 43 is provided with a second motor shaft 44, and a cover plate 45 is provided at the end of the second motor shaft 44 away from the second motor 43.

[0025] A plurality of shock-absorbing pads 46 are provided on the lower surface of the base 1, and the plurality of shock-absorbing pads 46 are arranged around the base 1. Since the mud collection device will vibrate during operation, the shock-absorbing pads 46 can reduce the vibration to ensure the safe operation of the machine.

[0026] Working principle: First, start the mud pump 3, pump the mud material into the first cavity 7 through the feed pipe 4 and the discharge pipe 5, start the first motor 12, rotate the first motor shaft 13, and then drive the heat collecting shell 11 to rotate, and fully stir the mud through the roller 47, so that the internal mud can be fully stirred without agglomeration, and dry the mud so that the mud can be fully exposed to the hot air and fully dried. At the same time, start the hot air blower 18, and the hot air enters the second cavity 14 through the hot air pipe 20 and the hot air through hole 21, and then is discharged through the first air hole 15 and the second air hole 16, so that the hot air can fully contact the mud to achieve the effect of full drying, and the first process is completed.

[0027] Then start the second motor 43, rotate the second motor shaft 44, and rotate the cover plate 45 to facilitate the mud to enter the third cavity 34, so as to prepare for the second treatment; then open the first solenoid valve 23, and the mud is discharged into the third cavity 34 through the first discharge port 22, and the start cylinder 35 is extended through the telescopic rod 36, thereby driving the extrusion block 37, so that the extrusion block 37 squeezes the mud, and a part of the mud passes through the filter plate 38, opens the third solenoid valve 42, and discharges the mud to the mud collection box 9 through the third discharge port 41, and the other part is discharged into the solid waste collection box 10 through the second discharge port 39 by opening the second solenoid valve 40, so as to realize the classified storage of garbage and ensure the thorough treatment of garbage.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sludge collection device after municipal sewage treatment, comprising a base (1), characterized in that: A sludge raw material box (2) is provided on the upper surface of the base (1), a sludge pump (3) is provided on the upper surface of the base (1), a feed pipe (4) is provided on the side surface of the sludge raw material box (2) of the sludge pump (3), an end of the feed pipe (4) away from the sludge pump (3) passes through the side surface of the sludge raw material box (2), a discharge pipe (5) is provided on the upper surface of the sludge pump (3), a support device is provided above the base (1), a first collecting box (6) is provided on the upper part of the surface of the support device, the first collecting box (6) is arranged below the discharge pipe (5), and a first collecting box (6) is provided inside the first collecting box (6). A cavity (7), wherein a drying device is provided inside the first cavity (7), two feed ports (8) are provided at the end of the discharge pipe (5) away from the mud pump (3), the discharge pipe (5) is connected to the two feed ports (8), one end of the two feed ports (8) away from the discharge pipe (5) passes through the upper surface of the first collecting box (6), and the two feed ports (8) are connected to the first cavity (7), a classification device is provided between the base (1) and the first collecting box (6), the classification device is fixed by a supporting device, and a sludge collection box (9) and a solid waste collection box (10) are provided below the classification device.

2. The sludge collection device after municipal sewage treatment according to claim 1 is characterized in that: The drying device comprises a heat collecting shell (11), a plurality of rollers (47) are provided in an annular shape on the surface of the heat collecting shell (11), and the plurality of rollers (47) are all spiral-shaped; a first motor (12) is provided above the first collecting box (6), and the first motor (12) is fixedly connected to the upper surface of the heat collecting shell (11); a first motor shaft (13) is provided on the lower surface of the first motor (12), and one end of the first motor shaft (13) passes through the first collecting box (6) and is fixedly connected to the upper surface of the heat collecting shell (11); a second cavity (14) is provided inside the heat collecting shell (11), and a plurality of first air holes (15) are provided on the upper inner wall of the second cavity (14); a plurality of second air holes (16) are provided on the upper inner wall of the first cavity (7); and the outer surface of the heat collecting shell (11) is provided with a plurality of first air holes (15). A shielding block (17) is provided in an annular shape, the upper end of the shielding block (17) is connected to the upper inner wall of the first cavity (7), a hot air blower (18) is provided below the first collecting box (6), a plurality of first fixing blocks (19) are provided on the upper surface of the hot air blower (18), one end of the plurality of first fixing blocks (19) away from the hot air blower (18) is connected to the lower surface of the first collecting box (6), a hot air duct (20) is provided on the upper surface of the hot air blower (18), a hot air through hole (21) is provided on the lower inner wall of the second cavity (14), the hot air duct (20) is connected to the hot air through hole (21), two through holes are provided on the lower inner wall of the first cavity (7), a first discharge port (22) is provided inside the two through holes, and a first solenoid valve (23) is provided inside the two first discharge ports (22).

3. The sludge collection device after municipal sewage treatment according to claim 1 is characterized in that: The supporting device comprises a first vertical block (24) and a second vertical block (25), the side surface of the first vertical block (24) is provided with a first horizontal block (26), the side surface of the first vertical block (24) is provided with a plurality of second horizontal blocks (27), the plurality of second horizontal blocks (27) are all above the first horizontal block (26), a second fixed block (28) is provided at one end of the plurality of second horizontal blocks (27) away from the first vertical block (24), a side surface of the second fixed block (28) is connected to the side surface of the first collecting box (6), and a third horizontal block (29) is provided at the upper end of the second vertical block (25).

4. The device for collecting sludge after municipal sewage treatment according to claim 3 is characterized in that: A first oblique brace (30) is provided between the first vertical block (24) and the first transverse block (26), and a triangle is formed between the first vertical block (24), the first transverse block (26) and the first oblique brace (30); a second oblique brace (31) is provided between the first vertical block (24) and the second transverse block (27), and a triangle is formed between the first vertical block (24), the second transverse block (27) and the second oblique brace (31); a third oblique brace (32) is provided between the second vertical block (25) and the third transverse block (29), and a triangle is formed between the second vertical block (25), the third transverse block (29) and the third oblique brace (32).

5. The sludge collection device after municipal sewage treatment according to claim 1 is characterized in that: The classification device comprises a second collection box (33), a third cavity (34) is provided inside the second collection box (33), a cylinder (35) is provided on the surface of the support device, a plurality of through holes are provided around the inner wall of the third cavity (34) on one side close to the cylinder (35), a telescopic rod (36) is provided on the surface of the cylinder (35) on one side close to the second collection box (33), the telescopic rod (36) penetrates the side surface of the second collection box (33), an extrusion block (37) is provided at one end of the second collection box (33) away from the cylinder (35), a plurality of through holes are provided around the surface of the extrusion block (37), the extrusion block (37) is slidably connected to the inner wall of the third cavity (34), a filter plate (38) is provided in the middle of the third cavity (34), and the third A through hole is provided on the lower inner wall of the third cavity (34), the through hole is located above the solid waste collection box (10), a second discharge port (39) is provided inside the through hole, and a second solenoid valve (40) is provided inside the second discharge port (39); a through hole is provided on the lower inner wall of the third cavity (34), the through hole is located above the sludge collection box (9), a third discharge port (41) is provided inside the through hole, and a third solenoid valve (42) is provided inside the third discharge port (41); a second motor (43) is provided above the cylinder (35), a side surface of the second motor (43) is connected to a surface of a supporting device, a second motor shaft (44) is provided on a side surface of the second motor (43), and a cover plate (45) is provided at one end of the second motor shaft (44) away from the second motor (43).

6. The device for collecting sludge after municipal sewage treatment according to claim 1 is characterized in that: The lower surface of the base (1) is provided with a plurality of shock-absorbing pads (46), and the plurality of shock-absorbing pads (46) are arranged around the base (1).

Citation Information

Patent Citations

  • Sludge collecting device based on sewage treatment

    CN214115337U