A mud discharge structure for sewage treatment tank

Abstract

The utility model belongs to the technical field of sludge discharge from sewage treatment tanks, and discloses a sludge discharge structure for sewage treatment tanks, including a sewage tank body, wherein the interior of the sewage tank body also includes a sludge pulling assembly; the sludge pulling assembly includes a rolling shutter plate slidably arranged inside the sewage tank body, both ends of the rolling shutter plate are fixedly provided with limit frames, a connecting rod is rotatably arranged between the two limit frames, a hydraulic telescopic shaft is rotatably arranged on the outside of the right connecting rod, a traction spring is fixedly arranged on the outside of the left connecting rod, and a counterweight block is fixedly arranged on the other end of the traction spring, and the rolling shutter plate structure in the sludge pulling assembly can be directly pulled and lifted from the interior of the sewage tank body, and then the sludge on the rolling shutter plate can be directly brought out of the sewage tank body, so that the sludge treatment outside the sewage tank body is more convenient, and there will be no residual large sludge particles located outside the filter screen, which cannot be used for sludge discharge treatment, thereby achieving a better sludge discharge effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of mud discharge from sewage treatment tanks, in particular to a mud discharge structure for sewage treatment tanks. Background Art

[0002] The sewage treatment tank is a storage device for purifying sewage so that it meets the water quality requirements for discharge into a certain water body or reuse. During the sewage discharge process, the sludge in the water can be centrally treated.

[0003] At the same time, the application number is 202320971217.1, which is a mud discharge device for sewage treatment, "including a sewage treatment tank body, wherein an inclined water baffle is provided inside the sewage treatment tank body, a water storage cavity is provided on one side of the water baffle, a water filter cavity is provided on the other side of the water baffle, a water filter plate is provided inside the water filter cavity, the water filter plate and the water baffle are arranged in an inclined and parallel manner, a mud discharge assembly is provided between the water filter plate and the water baffle, a sealing plate is movably connected to the lower part of the sewage treatment tank body, a connecting pipe is connected between the water storage cavity and the water filter cavity, an inclined water baffle and a water filter plate are provided inside the sewage treatment tank, and a mud discharge cavity is formed between the water baffle and the water filter plate";

[0004] During use, the existing sludge discharge device for sewage treatment recovers and discharges the sludge in a centralized manner through filtration. However, during the filtration process, there will always be some sludge impurities remaining in the sewage, which will not pass through the filter, and the sludge filtration and sludge discharge treatment cannot be completed. In addition, the cleaning of the remaining sludge is relatively complicated, which affects the efficiency after multiple sludge discharges.

[0005] Therefore, in view of the above problems, a mud discharge structure for a sewage treatment tank is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a sludge discharge structure for a sewage treatment box, which has the advantages of being able to quickly clean the residual sludge and avoiding the situation where part of the sludge cannot pass through the filter screen and cannot be discharged.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mud discharge structure for a sewage treatment tank, comprising a sewage tank body, wherein the interior of the sewage tank body also includes a mud pulling component;

[0008] The mud pulling assembly includes a rolling shutter plate slidably arranged inside the sewage tank body, and limit frames are fixedly arranged at both ends of the rolling shutter plate. A connecting rod is rotatably arranged between the two limit frames, a hydraulic telescopic shaft is rotatably arranged on the outside of the right connecting rod, and a traction spring is fixedly arranged on the outside of the left connecting rod, and a counterweight block is fixedly arranged on the other end of the traction spring.

[0009] Preferably, a storage groove is provided at the top of the rolling shutter plate, and the rolling shutter plate is configured as a transformable metal plate.

[0010] Preferably, a fixing plate is fixedly provided on the inner wall of the sewage tank body, a pulley is rotatably provided on the outer side of the fixing plate, and the pulley is slidably provided with the rolling shutter plate.

[0011] Preferably, the pulley is arranged on a circle of the fixed plate in a uniform shape, and a rubber ring is arranged on the outer side of the pulley.

[0012] Preferably, a cleaning scraper is slidably provided above the rolling shutter plate, a reciprocating screw rod is slidably provided inside the cleaning scraper, a servo motor is fixedly provided at the rear end of the reciprocating screw rod, and a base is fixedly provided at the bottom end of the servo motor.

[0013] Preferably, a positioning plate is rotatably provided at the other end of the reciprocating screw, and the positioning plate and the base are located in a horizontal position.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model can directly pull and lift the rolling shutter plate from the inside of the sewage tank through the rolling shutter plate structure in the mud pulling assembly, and then directly bring the sludge on the rolling shutter plate out of the sewage tank, making it more convenient to handle the sludge outside the sewage tank, and there will be no residual large sludge particles outside the filter screen, which cannot be used for mud discharge treatment, thereby achieving a better mud discharge effect.

[0016] 2. The utility model uses a reciprocating screw rod and a cleaning scraper structure to slide back and forth on the surface of the rolling shutter plate, so as to automatically scrape off the sludge on the surface of the rolling shutter plate, thereby avoiding the inefficiency and heavy pollution caused by manual scraping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the fixed plate of the utility model;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the structure at A;

[0020] Figure 4 It is a schematic diagram of the installation structure of the cleaning scraper of the utility model.

[0021] In the figure: 1. Sewage tank;

[0022] 2. Mud pulling assembly; 21. Rolling plate; 22. Fixed plate; 23. Pulley; 24. Limiting frame; 25. Connecting rod; 26. Hydraulic telescopic shaft; 27. Traction spring; 28. Counterweight;

[0023] 3. Base; 4. Servo motor; 5. Reciprocating screw; 6. Cleaning scraper; 7. Positioning plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 4 As shown, the utility model provides a mud discharge structure for a sewage treatment tank, comprising a sewage tank body 1, wherein the sewage tank body 1 further comprises a mud pulling assembly 2;

[0026] The mud pulling assembly 2 includes a rolling shutter plate 21 slidably arranged inside the sewage tank 1, and limit frames 24 are fixedly arranged at both ends of the rolling shutter plate 21. A connecting rod 25 is rotatably arranged between the two limit frames 24. A hydraulic telescopic shaft 26 is rotatably arranged on the outside of the right connecting rod 25. The hydraulic telescopic shaft 26 can pull the limit frame 24 and the rolling shutter plate 21 to move through the connecting rod 25, so as to control the rolling shutter plate 21 to move and open from the inside of the sewage tank 1. A traction spring 27 is fixedly arranged on the outside of the left connecting rod 25, and a counterweight block 28 is fixedly arranged on the other end of the traction spring 27. When the hydraulic telescopic shaft 26 stops working, the rolling shutter plate 21 can be pulled to reset by the counterweight block 28 and the traction spring 27.

[0027] Specifically, a storage groove is opened at the top of the rolling shutter plate 21, and the rolling shutter plate 21 is configured as a convertible metal plate. The rolling shutter plate 21 can store more sludge through the storage groove and bring it out of the sewage tank 1.

[0028] Furthermore, a fixing plate 22 is fixedly provided on the inner wall of the sewage tank body 1 , a pulley 23 is rotatably provided on the outer side of the fixing plate 22 , and the pulley 23 is slidably provided with the rolling shutter plate 21 , so that the rolling shutter plate 21 can move more smoothly through the pulley 23 .

[0029] Furthermore, the pulley 23 is evenly arranged in a circle on the fixed plate 22, and a rubber ring is arranged on the outer side of the pulley 23. The pulley 23 can increase the friction with the rolling shutter plate 21 through the rubber ring structure, and the movement is more stable.

[0030] It is worth mentioning that a cleaning scraper 6 is slidably arranged above the rolling shutter plate 21, a reciprocating screw rod 5 is slidably arranged inside the cleaning scraper 6, a servo motor 4 is fixedly arranged at the rear end of the reciprocating screw rod 5, a base 3 is fixedly arranged at the bottom end of the servo motor 4, and the servo motor 4 drives the cleaning scraper 6 at the end of the main shaft to move on the surface of the rolling shutter plate 21 to scrape off the sludge.

[0031] It is worth noting that a positioning plate 7 is rotatably provided at the other end of the reciprocating screw rod 5 , and the positioning plate 7 and the base 3 are located in a horizontal position, and the positioning plate 7 cooperates with the base 3 to play a balancing support.

[0032] Among them, the hydraulic telescopic shaft 26 and the servo motor 4 are existing technologies and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0033] Working principle and process:

[0034] The staff passes the rolling shutter plate 21 in the mud pulling assembly 2 through the fixed plate 22 of the sewage tank body 1. After the rolling shutter plate 21 slides through the sewage tank body 1 through the pulley 23 of the fixed plate 22, the sewage is discharged into the interior of the sewage tank body 1 through the hydraulic telescopic shaft 26 connected to the outside of the connecting rod 25 between the limit frames 24, and the traction spring 27 structure. The sludge in the sewage is precipitated and the sludge is precipitated on the rolling shutter plate 21. The hydraulic telescopic shaft 26 structure contracts, and the connecting rod 25 and the limit frame 24 structure can be pulled to move, and the rolling shutter plate 21 can be controlled to gradually move and be pulled from the inside of the sewage tank body 1. Move along the pulley 23 of the fixed plate 22, and the rolling shutter plate 21 can be controlled to be gradually pulled out of the interior of the sewage tank body 1. After pulling it out, the counterweight block 28 at the other end of the traction spring 27 can be stretched, and the rolling shutter plate 21 loaded with sludge can be pulled out of the sewage tank body 1. After that, the rolling shutter plate 21 can be directly The sludge on the roller shutter plate 21 can be cleaned. At the same time, the roller shutter plate 21 on the other side can store the sludge and wait for the sludge to settle on the roller shutter plate 21. After the sedimentation is completed, the hydraulic telescopic shaft 26 stops working and the roller shutter plate 21 can be pulled out from the interior of the sewage tank 1 by the counterweight block 28 and the traction spring 27. After the roller shutter plate 21 is opened, the servo motor 4 on the base 3 can drive the reciprocating screw rod 5 to rotate, thereby driving the cleaning scraper 6 structure on the outside to scrape the surface of the roller shutter plate 21, so that the sludge can be quickly cleaned to avoid sludge residue and inconvenience in cleaning. It can also effectively prevent large particles of sludge from being unable to pass through the filter screen, resulting in the sludge being unable to be cleaned out from the interior of the sewage tank 1. The reciprocating screw rod 5 cooperates with the positioning plate 7 to maintain the stability of the movement of the cleaning scraper 6, and the sludge inside the storage tank of the roller shutter plate 21 can be directly cleaned by a brush. The overall structure is easy to use and has a high cleaning efficiency.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge discharge structure for a sewage treatment tank, comprising a sewage tank body (1), characterized in that: The sewage tank (1) further comprises a mud pulling assembly (2) inside; The mud pulling assembly (2) comprises a rolling shutter plate (21) slidably arranged inside the sewage tank (1), and limit frames (24) are fixedly arranged at both ends of the rolling shutter plate (21), a connecting rod (25) is rotatably arranged between the two limit frames (24), a hydraulic telescopic shaft (26) is rotatably arranged outside the right connecting rod (25), and a traction spring (27) is fixedly arranged outside the left connecting rod (25), and a counterweight (28) is fixedly arranged at the other end of the traction spring (27).

2. The mud discharge structure for a sewage treatment tank according to claim 1, characterized in that: A storage groove is provided at the top of the rolling shutter plate (21), and the rolling shutter plate (21) is configured as a convertible metal plate.

3. The mud discharge structure for a sewage treatment tank according to claim 1, characterized in that: A fixing plate (22) is fixedly provided on the inner wall of the sewage tank (1), a pulley (23) is rotatably provided on the outer side of the fixing plate (22), and the pulley (23) and the rolling shutter plate (21) are slidably provided.

4. The mud discharge structure for a sewage treatment tank according to claim 3, characterized in that: The pulley (23) is arranged on the fixed plate (22) in a uniform circle, and a rubber ring is arranged on the outside of the pulley (23).

5. The mud discharge structure for a sewage treatment tank according to claim 1, characterized in that: A cleaning scraper (6) is slidably disposed above the rolling shutter plate (21), a reciprocating screw rod (5) is slidably disposed inside the cleaning scraper (6), a servo motor (4) is fixedly disposed at the rear end of the reciprocating screw rod (5), and a base (3) is fixedly disposed at the bottom end of the servo motor (4).

6. The mud discharge structure for a sewage treatment tank according to claim 5, characterized in that: A positioning plate (7) is rotatably provided at the other end of the reciprocating screw rod (5), and the positioning plate (7) and the base (3) are located in a horizontal position.

Images