Sludge discharge device for sewage treatment sedimentation tank

Abstract

The utility model relates to the technical field of sewage treatment equipment, and discloses a sewage treatment sedimentation tank sludge discharge device which comprises a sludge pump motor, a sludge pump shell, a sludge discharge pipe, a transmission assembly, a crushing assembly I, a crushing assembly II, a supporting seat, a driving assembly, a supporting guide assembly and an electric hoist, the slurry pump shell is fixedly installed at the bottom of the slurry pump motor, the slurry discharging pipe is fixedly installed on the slurry pump shell and communicated with the slurry pump shell, an output shaft of the slurry pump motor extends into the slurry pump shell and is fixedly provided with a plurality of paddles, and a plurality of slurry inlets are formed in the peripheral side and the bottom of the slurry pump shell. The sludge discharge device has the advantages and effects that the sludge discharge device is simple and convenient to operate, sludge can be crushed while being discharged, the blockage condition is avoided, and meanwhile, the position and the sludge discharge depth of the sludge discharge device can be conveniently adjusted according to the sludge discharge requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a sludge discharge device for a sewage treatment sedimentation tank. Background Art

[0002] In the sewage treatment process, sedimentation tank is one of the commonly used equipment. It is mainly used to precipitate and separate suspended matter and particulate matter in water by gravity. However, as the use time increases, a large amount of mud will accumulate at the bottom of the sedimentation tank. These muds need to be cleaned up in time, otherwise it will reduce the water demand of the sedimentation tank and affect the normal operation of the sedimentation tank. Therefore, how to efficiently and safely clean the mud at the bottom of the sedimentation tank has become an urgent problem to be solved.

[0003] At present, although the sludge removal devices for sewage treatment sedimentation tanks on the market have solved the problem of sludge cleaning to a certain extent, there are still some shortcomings. For example, some sludge removal devices cannot effectively crush the sludge during the cleaning process, which causes the sludge to easily block the pipes during the discharge process, affecting the cleaning efficiency. In addition, some sludge removal devices require manual movement and adjustment multiple times during operation, which increases the difficulty of operation and labor intensity.

[0004] In view of these problems, the utility model proposes an improved sludge discharge device for a sewage treatment sedimentation tank.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a sludge discharge device for a sewage treatment sedimentation tank, which has the advantages of simple and convenient operation, can discharge the sludge and crush the sludge at the same time, avoids blockage, and is convenient for adjusting the position and depth of the device according to the needs of sludge discharge.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a mud discharge device for a sewage treatment sedimentation tank, comprising a mud pump motor, a mud pump housing, a mud discharge pipe, a transmission assembly, a crushing assembly 1, a crushing assembly 2, a support seat, a drive assembly, a support guide assembly and an electric hoist;

[0008] The mud pump housing is fixedly mounted at the bottom of the mud pump motor, and the mud discharge pipe is fixedly mounted on the mud pump housing and communicated with the mud pump housing, the output shaft of the mud pump motor extends into the mud pump housing and is fixedly mounted with a plurality of blades, the outer peripheral side and the bottom of the mud pump housing are both provided with a plurality of mud inlets, the crushing assembly 1 is arranged at the bottom of the mud pump housing, the transmission assembly is arranged in the mud pump housing and is connected to the output shaft of the mud pump motor and the crushing assembly 1, and the crushing assembly 2 is arranged on the crushing assembly 1;

[0009] The support seat is arranged above the mud pump motor, the electric hoist is fixedly installed at the bottom of the support seat and connected to the mud pump motor, a mounting groove is opened on the support seat, the driving assembly and the supporting guide assembly are both arranged in the mounting groove, and the same track beam is arranged between the supporting guide assembly and the driving assembly.

[0010] The utility model is further configured as follows: the crushing assembly comprises a plurality of scraper bars, a rotating shaft and a connecting ring; a rotating shaft is rotatably mounted on the bottom inner wall of the mud pump housing; the bottom end of the rotating shaft extends to the bottom of the mud pump housing and is radially fixedly mounted with a plurality of scraper bars; the plurality of scraper bars are all in contact with the bottom of the mud pump housing; and a same connecting ring is fixedly mounted on one end of the plurality of scraper bars away from the rotating shaft.

[0011] By adopting the above technical solution, multiple scraper pairs can be controlled to clean the bottom of the mud pump housing when the shaft rotates, and at the same time, the mud entering the mud pump housing through the lower mud inlet can be cut off, thereby preventing large pieces of mud from directly entering the mud pump housing.

[0012] The utility model is further configured as follows: the crushing component 1 further comprises a plurality of scraper bars 2, the top side of the connecting ring is fixedly mounted with the plurality of scraper bars 2, and the plurality of scraper bars 2 are all in contact with the outer side wall of the mud pump housing.

[0013] By adopting the above technical solution, the scraper bar 2 can be controlled to clean the outer wall of the mud pump housing when the connecting ring rotates, and at the same time, large pieces of mud can be prevented from entering the mud pump housing through the mud inlet on the side of the mud pump housing.

[0014] The utility model is further configured as follows: the crushing component 2 includes multiple fixed blocks, multiple rotating pins, multiple crushing rods and multiple limiting members; multiple fixed blocks are fixedly installed on some of the multiple scraper strips 2; a mounting hole is opened on the bottom side of the fixed block; a rotating pin is movably installed in the mounting hole; a crushing rod is radially rotatably installed on the bottom end of the rotating pin; a limiting member is arranged on the fixed block; the rotating pin is detachably connected to the fixed block through the limiting member.

[0015] By adopting the above technical solution, the hard mud around the mud pump housing can be broken up when the scraper bar 2 follows the movement of the connecting ring, which can not only avoid blockage but also expand the effect of the mud pump on mud extraction and avoid the situation where the mud becomes hard due to long-term sedimentation and cannot be smoothly extracted by the mud pump.

[0016] The utility model is further configured as follows: the limiting member is a limiting bolt, a screw hole is radially opened on the rotating pin, the limiting bolt is threadedly installed on the fixing block, and the limiting bolt is threadedly installed in the screw hole.

[0017] By adopting the above technical solution, it is convenient to fix the rotating pin and also convenient to disassemble and assemble the breaking rod.

[0018] The utility model is further configured as follows: the transmission assembly includes a driving gear, multiple transmission gears and a toothed disc, the toothed disc is fixedly installed on the top of the rotating shaft, the driving gear is fixedly sleeved on the bottom end of the output shaft of the mud pump motor, and multiple transmission gears are rotatably installed in the mud pump housing, and the multiple transmission gears are all meshed with the driving gear and the toothed disc.

[0019] By adopting the above technical solution, the rotating shaft can be driven to rotate when the mud pump motor is working, and the deceleration effect can be achieved at the same time.

[0020] The utility model is further configured as follows: a cylindrical box is fixedly mounted on the bottom inner wall of the mud pump housing, a plurality of transmission gears are rotatably mounted on the top inner wall of the cylindrical box, an output shaft of the mud pump motor maintains a sealed rotational connection with the cylindrical box, and the driving gear and the gear plate are both located in the cylindrical box.

[0021] By adopting the above technical solution, shielding protection can be provided for the driving gear, the transmission gear and the gear plate, thereby avoiding mud contamination and ensuring that they can realize stable transmission.

[0022] The utility model is further configured as follows: the driving assembly includes a driving motor and a driving roller, the driving motor is fixedly installed on the front side of the support seat, the output shaft of the driving motor extends into the mounting groove and is fixedly sleeved with the driving roller, and the driving roller is in contact with the top side of the track beam.

[0023] By adopting the above technical solution, the support shaft and components such as the mud pump motor and the mud pump housing can be controlled to move along the track beam, so that the positions of components such as the mud pump motor and the mud pump housing can be adjusted, and mud discharge operations can be performed at different positions in the sewage treatment tank.

[0024] The utility model is further configured as follows: the support guide assembly comprises two support rollers, two support rollers parallel to each other are rotatably mounted in the mounting groove, and both support rollers are in contact with the bottom side of the track beam.

[0025] By adopting the above technical solution, effective support can be provided while cooperating with the driving roller to enable components such as the support seat, the mud pump motor and the mud pump housing to maintain stable movement along the direction of the track beam.

[0026] The utility model is further configured as follows: the support and guide assembly also includes four sliders, four springs and four slide grooves, two slide grooves are provided on the inner walls on both sides of the front and rear of the installation groove, sliders are slidably installed in the slide grooves, springs are fixedly installed on the bottom sides of the sliders, the bottom ends of the springs are fixedly connected to the bottom inner walls of the slide grooves, and the support rollers are rotatably installed on the side where two sliders are close to each other on the same side.

[0027] By adopting the above technical solution, support and buffering can be provided for the support roller, so that it can be better applicable to track beams of different sizes.

[0028] The beneficial effects of the utility model are:

[0029] 1. Efficient cleaning and crushing function: By setting up crushing component 1 and crushing component 2, the bottom and outer wall of the mud pump housing can be effectively cleaned to avoid mud deposition and blockage. At the same time, crushing component 2 can crush hard mud, improve the extraction efficiency of the mud pump, and avoid the situation where mud cannot be smoothly extracted due to long-term deposition.

[0030] 2. Flexible adjustment and stable support: Through the design of the drive assembly, support guide assembly and electric hoist, the position of the mud pump motor, mud pump housing and other components can be easily adjusted, so as to realize the mud discharge operation at different positions in the sewage treatment tank. At the same time, the design of the support roller, slider and spring in the support guide assembly ensures the stability and adaptability of the device during movement.

[0031] 3. Transmission protection and deceleration effect: The cylindrical box set in the mud pump housing not only provides shielding protection for the driving gear, transmission gear and gear plate to avoid mud contamination, but also achieves the deceleration effect through the design of the gear plate, driving gear and multiple transmission gears, so that the mud pump motor can drive the shaft to rotate stably during operation without excessive wear caused by excessive speed.

[0032] 4. Modular design and easy maintainability: The entire device adopts a modular design. The components are simply connected and easy to disassemble, which is convenient for users to maintain and replace. In particular, the breaking rod in the second breaking component is detachably connected to the fixed block through the limit bolt, which is convenient for users to disassemble and assemble the breaking rod, and it is also convenient for operators to replace it with breaking rods of different sizes according to actual needs.

[0033] 5. High efficiency, energy saving and environmental protection: By optimizing the output of the mud pump motor and the design of the transmission components, the working efficiency of the device is improved and the energy consumption is reduced. At the same time, the crushing components effectively crush and clean the mud, reduce the sedimentation and blockage of the mud, improve the sewage treatment efficiency, and are beneficial to environmental protection and energy saving.

[0034] To sum up, the sludge discharge device for water treatment sedimentation tank of the utility model has the advantages of efficient cleaning and crushing function, flexible adjustment and stable support, transmission protection and deceleration effect, modular design and easy maintenance, as well as high efficiency, energy saving and environmental protection. It can be widely used in the field of sewage treatment and contribute to the purification and protection of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 This is a three-dimensional structural schematic diagram of a sludge discharge device for a sewage treatment sedimentation tank proposed by the utility model;

[0037] Figure 2 It is a schematic cross-sectional structure diagram of a mud pump housing part in a mud discharge device for a sewage treatment sedimentation tank proposed by the utility model;

[0038] Figure 3 It is a cross-sectional structural schematic diagram of a cylindrical box part in a sludge discharge device for a sewage treatment sedimentation tank proposed by the utility model;

[0039] Figure 4 It is a three-dimensional structural schematic diagram of a cylindrical box, a crushing component 1 and a crushing component 2 of a sludge discharge device for a sewage treatment sedimentation tank proposed by the utility model;

[0040] Figure 5 This is a cross-sectional structural diagram of the support seat part proposed by the utility model;

[0041] Figure 6 This is a three-dimensional structural schematic diagram of the support roller, slider and spring part proposed by the utility model.

[0042] In the figure, 1. mud pump motor; 2. mud pump housing; 21. slurry discharge pipe; 22. cylindrical box; 3. rotating shaft; 301. toothed disc; 302. driving gear; 303. transmission gear; 31. scraper bar 1; 32. connecting ring; 33. scraper bar 2; 34. fixing block; 35. breaking rod; 4. supporting seat; 41. driving motor; 42. driving roller; 43. supporting roller; 431. sliding block; 432. spring; 5. electric hoist; 6. track beam. DETAILED DESCRIPTION

[0043] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0044] Reference Figure 1-6 A mud discharge device for a sewage treatment sedimentation tank comprises a mud pump motor 1, a mud pump housing 2, a slurry discharge pipe 21, a support seat 4 and an electric hoist 5. The mud pump housing 2 is fixedly mounted at the bottom of the mud pump motor 1, and the slurry discharge pipe 21 is fixedly mounted on the mud pump housing 2 and communicated with the mud pump housing 2. The output shaft of the mud pump motor 1 extends into the mud pump housing 2 and is fixedly mounted with a plurality of blades. A plurality of mud inlets are provided on the outer peripheral side and the bottom of the mud pump housing 2. A rotating shaft 3 is rotatably mounted on the bottom inner wall of the mud pump housing 2. The bottom end of the rotating shaft 3 extends to the bottom of the mud pump housing 2 and is radially fixedly mounted with a plurality of scraping strips 31. The plurality of scraping strips 31 are all in contact with the bottom of the mud pump housing 2. The ends of the plurality of scraping strips 31 away from the rotating shaft 3 are fixedly mounted with the same connecting ring 32, so that the plurality of scraping strips 31 can be controlled to clean the bottom of the mud pump housing 2 when the rotating shaft 3 rotates. The invention can also be used to cut off the mud that enters the mud pump housing 2 through the mud inlet below, thereby preventing large pieces of mud from directly entering the mud pump housing 2. A plurality of scraper strips 33 are fixedly installed on the top side of the connecting ring 32. The plurality of scraper strips 33 are in contact with the outer wall of the mud pump housing 2, and the scraper strips 33 can be controlled to clean the outer wall of the mud pump housing 2 when the connecting ring 32 rotates, thereby preventing large pieces of mud from entering the mud pump housing 2 from the mud inlet on the side of the mud pump housing 2. A toothed disc 301 is fixedly installed on the top of the rotating shaft 3, and a driving gear 302 is fixedly sleeved on the bottom end of the output shaft of the mud pump motor 1. A plurality of transmission gears 303 are rotatably installed in the mud pump housing 2, and the plurality of transmission gears 303 are meshed with the driving gear 302 and the toothed disc 301, so as to drive the rotating shaft 3 to rotate when the mud pump motor 1 is working, and at the same time achieve a deceleration effect.

[0045] A plurality of fixing blocks 34 are fixedly mounted on some of the plurality of scraper strips 33. A mounting hole is provided on the bottom side of the fixing block 34. A rotating pin is detachably fixedly mounted in the mounting hole through a limit bolt. A breaking rod 35 is radially rotatably mounted on the bottom end of the rotating pin. When the scraper strip 33 moves with the connecting ring 32, the relatively hard mud around the mud pump housing 2 can be broken, which can not only avoid blockage, but also expand the effect of the mud pump on mud extraction, and avoid the situation where the mud cannot be smoothly extracted by the mud pump due to the long-term deposition of the mud and the mud becomes relatively hard.

[0046] The support seat 4 is arranged above the mud pump motor 1, the electric hoist 5 is fixedly installed at the bottom of the support seat 4 and connected to the mud pump motor 1, a mounting groove is provided on the support seat 4, a track beam 6 is movably installed in the mounting groove, a driving motor 41 is fixedly installed on the front side of the support seat 4, the output shaft of the driving motor 41 extends into the mounting groove and is fixedly sleeved with a driving roller 42, the driving roller 42 is in contact with the top side of the track beam 6, and can control the support shaft and components such as the mud pump motor 1 and the mud pump housing 2 to move along the track beam 6, so that the positions of the mud pump motor 1 and the mud pump housing 2 and other components can be adjusted, and then mud discharge operations can be performed at different positions in the sewage treatment tank;

[0047] Two support rollers 43 parallel to each other are rotatably installed in the installation groove. Both support rollers 43 are in contact with the bottom side of the track beam 6, which can provide effective support and cooperate with the driving roller 42 to make the support seat 4, mud pump motor 1, mud pump housing 2 and other components maintain stable movement along the direction of the track beam 6. Two slide grooves are provided on the inner walls on the front and rear sides of the installation groove. A slider 431 is slidably installed in the slide groove. A spring 432 is fixedly installed on the bottom side of the slider 431. The bottom end of the spring 432 is fixedly connected to the bottom inner wall of the slide groove. The support roller 43 is rotatably installed on the side where the two sliders 431 on the same side are close to each other, which can provide support and buffering for the support roller 43, so that it can be better suitable for track beams 6 of different sizes.

[0048] Specifically, in order to provide shielding protection for the driving gear 302, the transmission gear 303 and the toothed disc 301, avoid mud contamination and ensure that they can stably realize transmission, a cylindrical box 22 is fixedly installed on the bottom inner wall of the mud pump housing 2, and multiple transmission gears 303 are rotatably installed on the top inner wall of the cylindrical box 22. The output shaft of the mud pump motor 1 maintains a sealed rotation connection with the cylindrical box 22, and the driving gear 302 and the toothed disc 301 are both located in the cylindrical box 22.

[0049] Working principle:

[0050] When it is necessary to discharge mud from the sewage treatment sedimentation tank, first, the track beam 6 is erected above the sedimentation tank and the power is turned on. The two ends of the track beam 6 can be placed on two moving carts, and then the drive motor 41 is started. The drive motor 41 drives the mud pump motor 1 and the mud pump housing 2 and other components to move to a suitable position along the track beam 6 through the driving roller 42, and then the mud pump motor 1 and the mud pump housing 2 and other components are lowered to a depth suitable for cleaning the mud through the electric hoist 5.

[0051] After reaching the mud discharge position, the mud pump motor 1 is started, and the output shaft of the mud pump motor 1 drives the multiple blades to rotate, so that the mud-water mixture around the mud pump housing 2 enters through the mud inlet and is extracted. At the same time, when the output shaft of the mud pump motor 1 rotates, it can also drive the gear 302 to rotate, and then drive the rotation of multiple transmission gears 303 and the gear plate 301. The rotation of the gear plate 301 drives the rotating shaft 3 to rotate, so that the scraper bar 1 31 and the scraper bar 2 33 are scraped along the bottom and outer wall of the mud pump housing 2 respectively, so as to effectively remove the deposited mud and prevent large pieces of mud from entering the mud pump housing 2.

[0052] In particular, when the scraper bar 33 encounters relatively hard mud during rotation, the crushing rod 35 on the fixed block 34 will crush it, thereby ensuring smooth entry and extraction of the mud.

[0053] At the same time, the support roller 43 is in close contact with the track beam 6 under the action of the spring 432, providing stable support and cushioning for the entire mud discharge device, ensuring its stability and safety during movement, and can also be well adapted to track beams 6 of different sizes.

[0054] As the mud pump motor 1 continues to work, the mud is smoothly discharged through the slurry discharge pipe 21, realizing the mud discharge operation of the sewage treatment sedimentation tank. In the process of mud discharge, by adjusting the position of the support seat 4 on the track beam 6 and adjusting the position of the track beam 6 by the mobile trolley, mud discharge operations can be performed at different positions in the sedimentation tank. Moreover, by setting a plurality of breaking rods 35, the range of action of the device on the mud during the mud discharge operation can be increased, thereby greatly improving the efficiency of mud discharge.

[0055] The above is a detailed introduction to a sewage treatment sedimentation tank sludge discharge device provided by the utility model. This article uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A sludge discharge device for a sewage treatment sedimentation tank, characterized in that: It comprises a mud pump motor (1), a mud pump housing (2), a mud discharge pipe (21), a transmission component, a crushing component 1, a crushing component 2, a support seat (4), a drive component, a support guide component and an electric hoist (5); The mud pump housing (2) is fixedly mounted on the bottom of the mud pump motor (1), and the mud discharge pipe (21) is fixedly mounted on the mud pump housing (2) and communicated with the mud pump housing (2); the output shaft of the mud pump motor (1) extends into the mud pump housing (2) and is fixedly mounted with a plurality of blades; the outer peripheral side and the bottom of the mud pump housing (2) are both provided with a plurality of mud inlets; the first crushing component is arranged at the bottom of the mud pump housing (2); the transmission component is arranged in the mud pump housing (2) and is connected to the output shaft of the mud pump motor (1) and the first crushing component; and the second crushing component is arranged on the first crushing component; The support seat (4) is arranged above the mud pump motor (1), the electric hoist (5) is fixedly installed at the bottom of the support seat (4) and connected to the mud pump motor (1), the support seat (4) is provided with a mounting groove, the drive assembly and the support guide assembly are both arranged in the mounting groove, and the same track beam (6) is arranged between the support guide assembly and the drive assembly.

2. A sludge discharge device for a sewage treatment sedimentation tank according to claim 1, characterized in that: The crushing assembly comprises a plurality of scraper strips (31), a rotating shaft (3) and a connecting ring (32). The rotating shaft (3) is rotatably mounted on the bottom inner wall of the mud pump housing (2). The bottom end of the rotating shaft (3) extends to the bottom of the mud pump housing (2) and is radially fixedly mounted with a plurality of scraper strips (31). The plurality of scraper strips (31) are all in contact with the bottom of the mud pump housing (2). The ends of the plurality of scraper strips (31) away from the rotating shaft (3) are fixedly mounted with the same connecting ring (32).

3. A sludge discharge device for a sewage treatment sedimentation tank according to claim 2, characterized in that: The crushing component 1 also includes a plurality of scraper strips 2 (33), and the top side of the connecting ring (32) is fixedly mounted with the plurality of scraper strips 2 (33), and the plurality of scraper strips 2 (33) are all in contact with the outer side wall of the mud pump housing (2).

4. A sludge discharge device for a sewage treatment sedimentation tank according to claim 3, characterized in that: The crushing assembly 2 comprises a plurality of fixed blocks (34), a plurality of rotating pins, a plurality of crushing rods (35) and a plurality of limiting members. A plurality of fixed blocks (34) are fixedly mounted on some of the scraping strips 2 (33). A mounting hole is provided on the bottom side of the fixed block (34). A rotating pin is movably mounted in the mounting hole. A crushing rod (35) is radially rotatably mounted on the bottom end of the rotating pin. A limiting member is provided on the fixed block (34). The rotating pin is detachably connected to the fixed block (34) via the limiting member.

5. A sludge discharge device for a sewage treatment sedimentation tank according to claim 4, characterized in that: The limiting member is a limiting bolt, a screw hole is radially opened on the rotating pin, the limiting bolt is threadedly installed on the fixing block (34), and the limiting bolt is threadedly installed in the screw hole.

6. A sludge discharge device for a sewage treatment sedimentation tank according to claim 2, characterized in that: The transmission assembly comprises a driving gear (302), a plurality of transmission gears (303) and a toothed disc (301); the toothed disc (301) is fixedly mounted on the top end of the rotating shaft (3); the driving gear (302) is fixedly sleeved on the bottom end of the output shaft of the mud pump motor (1); a plurality of transmission gears (303) are rotatably mounted in the mud pump housing (2); and the plurality of transmission gears (303) are all meshed with the driving gear (302) and the toothed disc (301).

7. A sludge discharge device for a sewage treatment sedimentation tank according to claim 1, characterized in that: A cylindrical box (22) is fixedly mounted on the bottom inner wall of the mud pump housing (2), and a plurality of transmission gears (303) are rotatably mounted on the top inner wall of the cylindrical box (22). The output shaft of the mud pump motor (1) is sealed and rotatably connected to the cylindrical box (22), and the driving gear (302) and the toothed disc (301) are both located in the cylindrical box (22).

8. The sludge discharge device for a sewage treatment sedimentation tank according to claim 1, characterized in that: The driving assembly comprises a driving motor (41) and a driving roller (42); the driving motor (41) is fixedly mounted on the front side of the support seat (4); the output shaft of the driving motor (41) extends into the mounting groove and is fixedly sleeved with the driving roller (42); the driving roller (42) is in contact with the top side of the track beam (6).

9. A sludge discharge device for a sewage treatment sedimentation tank according to claim 1, characterized in that: The support guide assembly comprises two support rollers (43). Two support rollers (43) are rotatably mounted in the mounting groove and are parallel to each other. Both support rollers (43) are in contact with the bottom side of the track beam (6).

10. A sludge discharge device for a sewage treatment sedimentation tank according to claim 9, characterized in that: The support and guide assembly also includes four sliders (431), four springs (432) and four slide grooves. Two slide grooves are provided on the inner walls on both sides of the installation groove. The sliders (431) are slidably installed in the slide grooves. The bottom side of the sliders (431) is fixedly installed with springs (432). The bottom end of the spring (432) is fixedly connected to the bottom inner wall of the slide groove. The support roller (43) is rotatably installed on the side where two sliders (431) on the same side are close to each other.

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