Precipitation device for sewage treatment

Abstract

The utility model belongs to the technical field of wastewater treatment equipment, and relates to a precipitation device for sewage treatment. In order to solve the technical problem that a top cover and a filter screen frame in a precipitation device in the prior art are not easy to disassemble and assemble, the precipitation device for sewage treatment comprises a precipitation tank main body, the top cover arranged at the top of the precipitation tank main body and the filter screen frame mounted on the inner side of the precipitation tank main body, the disassembly and assembly structures are arranged between the two ends of the top cover and the settling tank main body, so that the disassembly and assembly convenience of the top cover can be greatly improved, the top cover can be conveniently and quickly disassembled to clean the inner side of the settling tank main body and the filter screen frame, and the cleaning convenience of the settling device is improved. And meanwhile, the U-shaped seat, the side seat and the clamping structure are designed, so that the disassembly and assembly convenience of the filter screen frame is improved, and the filter screen frame can be conveniently and quickly disassembled for cleaning.

Description

Technical Field

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

[0002] The sewage treatment sedimentation device is a device used for solid-liquid separation and solid particle precipitation, and is commonly used in the sedimentation and filtration stages of the sewage treatment process. Existing sewage treatment sedimentation devices have the following problems: (1) Top cover fixing method: The top cover of a traditional sedimentation tank is usually fixed to the top surface of the tank body by multiple bolts and other structures. Although this design can ensure the sealing of the top cover, in actual use, frequent disassembly and assembly will make maintenance work cumbersome and time-consuming. The bolt connection method may increase the difficulty of disassembly and assembly due to corrosion, aging and other problems, affecting maintenance efficiency. (2) Inconvenience of top cover disassembly and assembly: When the inside of the tank body needs to be cleaned or repaired, the top cover must be removed first. Due to the large number of bolts, this process often takes a long time, reducing the convenience of subsequent cleaning and maintenance. In addition, frequent disassembly and assembly may also cause damage to the bolts and top cover, increasing maintenance costs. (3) Filter cleaning problem: In order to improve the sewage treatment effect, some sedimentation tanks are equipped with filter screens. After long-term use, these filter screens will accumulate a large amount of sediment and floating objects and need to be cleaned regularly. Since the top cover is difficult to disassemble and assemble, the work of cleaning the filter becomes complicated, which further increases the workload and time consumption of maintenance.

[0003] The Chinese utility model patent authorization announcement number is CN211097887U, with an application date of September 3, 2019. The title is: "A detachable filtering device for a domestic sewage pool." The disclosed device includes a sewage pool and a sewage pipe. The sewage pipe is pre-buried above the sewage pool. A bracket is fixedly connected to the corner of the sewage pool's inner wall corresponding to the position of the sewage pipe. A straight cylinder is provided below the sewage outlet of the sewage pipe. The bracket is movably connected to the surface of the sewage pipe near the bottom. A clamp is clamped to the surface of the straight cylinder, and the clamp is located above the bracket. This solution does not intercept sewage according to the flow direction of the water flow, which allows the filter screen to be designed with a larger area, while saving volume. It also solves the problem of the filter screen being difficult to remove to a certain extent. However, compared with existing straight-plate filters, it cannot perform multi-stage filtration and is prone to clogging.

[0004] Another example is the Chinese utility model patent authorization announcement number CN211676659U, the application date is December 11, 2019, and the name is: A wastewater treatment device with multiple filter screens; the disclosed device includes a tank body, a top cover and a first filter screen, a fixed shaft is provided on the side of the tank body, and a control rod is passed through the outside of the fixed shaft, the end of the control rod is connected to a movable buckle, and the end of the movable buckle is connected to a fixed groove, the top cover is provided on the side of the fixed groove, and the fixed groove and the top cover are welded together, a sealing block is provided on the top of the top cover, and a screw is passed through the inside of the sealing block, the first filter screen is provided at the bottom of the sealing block, and the sealing block and the first filter screen are movably connected, and a threaded groove is provided at the bottom of the top cover. This solution can filter impurities in the wastewater from large to small, but due to the multi-stage filter screen and the non-uniform structure, it is inconvenient to disassemble and assemble.

[0005] In summary, in order to improve the convenience of disassembly and assembly of the top cover, it is necessary to consider adopting a quick release mechanism to simplify the disassembly and assembly process, such as a modular design, so that the top cover can be quickly disassembled and installed, reducing maintenance time. Summary of the Invention

[0006] 1. Problems to be solved

[0007] In order to solve the technical problem that the top cover and the filter frame in the sedimentation device of the prior art are difficult to disassemble and assemble, the present application provides a sedimentation device for sewage treatment.

[0008] 2. Technical solution

[0009] In order to solve the above problems, the technical solution provided by the present invention is as follows:

[0010] A sedimentation device for sewage treatment includes a sedimentation tank body; a water inlet and a water outlet respectively arranged on both sides of the sedimentation tank body; a top cover arranged on the top of the sedimentation tank body; and a filter screen frame installed inside the sedimentation tank body.

[0011] A disassembly structure is provided between both ends of the top cover and the main body of the sedimentation tank; the disassembly structure includes a slide plate slidably arranged on the top surface of the top cover, a clamping plate fixed on the bottom surface of the slide plate and located on the side of the main body of the sedimentation tank, a side clamping block fixed on the side of the clamping plate, and a side clamping groove provided on the side of the main body of the sedimentation tank, wherein the side clamping block is inserted into the side clamping groove;

[0012] The inner walls on both sides of the sedimentation tank body are both provided with U-shaped seats corresponding to the filter screen frame, and the two ends of the filter screen frame are respectively inserted into the inner sides of the two U-shaped seats.

[0013] Preferably, the filter screen frame can be multiple, such as two, and the filter screen frames can use different mesh sizes to achieve graded filtration. (1) Filters of different pore sizes can filter particles of different sizes. The large-pore filter screen first filters out larger particles, and the small-pore filter screen then filters out smaller particles. This multi-level filtration can more effectively remove suspended matter and impurities in sewage and improve the overall filtration efficiency. (2) By filtering out large particles first with the large-pore filter screen, the clogging of the small-pore filter screen can be reduced, thereby extending the service life of the filter screen, reducing the replacement frequency and maintenance costs. (3) Since large particles are intercepted by the large-pore filter screen, the clogging of the small-pore filter screen will be improved, which reduces the number of times the filter screen needs to be cleaned, avoids premature damage to the filter screen due to frequent cleaning, and improves the operating efficiency of the equipment. (4) Multi-stage filtration can more thoroughly remove pollutants in sewage, including suspended solids, organic matter, etc., thereby improving the effluent water quality and making it meet higher discharge standards or reuse requirements. (5) Pollutants of different sizes may need to be removed at different stages of sewage treatment. Multi-stage filters with different pore sizes can be flexibly combined according to actual needs to adapt to different sewage treatment requirements. (6) The design of multi-stage filter screens makes the sedimentation device more flexible and adaptable. The configuration of the filter screen can be adjusted according to the specific composition of the sewage and the treatment objectives to achieve the best treatment effect. (7) Due to the reduction of filtration resistance, energy consumption will also be reduced accordingly. Especially when using filter membranes, reducing the contact between large particle pollutants and the filter membrane can reduce filtration resistance and energy consumption.

[0014] Furthermore, the disassembly and assembly structure also includes a top slide groove opened on the top surface of the top cover, a transverse guide column fixed in the top slide groove, a transverse slider slidably sleeved on the surface of the transverse guide column, and the top end of the transverse slider extends to the top of the top cover and is fixed to the slide plate.

[0015] The top chute, transverse guide column, and transverse slider components work together to achieve quick assembly and disassembly between the top cover and the sedimentation tank body. This design simplifies the complexity of traditional bolt connections, making top cover assembly and disassembly more convenient and faster, reducing maintenance workload and time.

[0016] Furthermore, a rectangular embedding groove is provided at the top center of the transverse guide column, and a rubber seat is installed in the embedding groove; the top surface of the rubber seat is provided with an integrated semicircular limiting protrusion; the transverse slider is located on one side of the semicircular limiting protrusion.

[0017] The embedded groove and rubber seat can effectively prevent the transverse slider from being displaced or falling off during operation, thereby enhancing the stability and safety of the structure. The use of rubber seats can reduce the hard contact between the transverse slider and the transverse guide column, thereby reducing wear and vibration, extending the service life of the equipment, and also reducing noise. The semicircular limit protrusion provides precise positioning for the transverse slider, ensuring the precise sliding of the transverse slider during operation, which is especially important for sewage treatment sedimentation devices that require fine adjustment. The rubber seat can absorb a certain amount of impact force and protect the transverse slider and transverse guide column from damage, especially in the event of unexpected impact or pressure changes that may occur during sewage treatment. The use of rubber seats can provide better sealing effects, preventing sewage or other liquids from penetrating between the sliding parts, and maintaining the cleanliness and performance of the equipment.

[0018] Furthermore, two insertion rods are symmetrically fixed to the bottom surface of the top cover, and the two insertion rods are inserted into the inner side of the sedimentation tank body and respectively fit with the inner walls on both sides of the sedimentation tank body.

[0019] By having two symmetrical rods fit against the inner wall of the sedimentation tank body, the connection stability between the top cover and the tank body is enhanced, ensuring that the top cover will not be displaced or fall off due to external forces or changes in internal pressure during the sewage treatment process.

[0020] Furthermore, a side seat is fixed to one side surface of the filter frame above the U-shaped seat; and a locking structure is also included, and the locking structure is arranged between the U-shaped seat and the side seat.

[0021] The side seats provide additional support points, enhancing the stability of the filter frame within the U-shaped seat and ensuring that the filter does not shift or deform due to water flow or vibration during use. The latching mechanism makes installation of the filter frame easier and faster. Precise latching allows for quick alignment and securement on the U-shaped seat, reducing installation time and improving efficiency and accuracy.

[0022] Furthermore, the locking structure includes a movable side panel movably mounted on the side of the U-shaped seat, and the top end of the movable side panel extends to one side of the side seat; an arc-shaped locking block is fixed to the top side of the movable side panel, and a rectangular slot for the arc-shaped locking block to be locked in is provided on the side of the side seat.

[0023] The coordination between the movable side panels and the side seats, as well as the precise engagement between the arc-shaped blocks and the rectangular slots, enhance the stability of the filter frame in the U-shaped seat, ensuring that the filter will not be displaced or deformed due to the impact or vibration of the water flow during use.

[0024] Furthermore, the locking structure also includes an inner slide groove opened inside the U-shaped seat, a spring and an inner slider installed in the inner slide groove, a side connecting rod fixed to the side of the inner slider, and one end of the side connecting rod passes through the side of the U-shaped seat and is fixed to the movable side plate.

[0025] The addition of the spring allows the inner slider to automatically adjust its position according to the actual situation of the filter frame, realizing the automatic positioning function, which can effectively ensure the transmission of the positioned product in this mechanism and improve the mechanical positioning accuracy and the stability of the mechanical structure.

[0026] Furthermore, a side hole communicating with the inner slide groove is opened on the side surface of the U-shaped seat, and the side hole corresponds to the side connecting rod.

[0027] The opening of the side hole allows the side connecting rod to directly pass through the side of the U-shaped seat and be fixed to the movable side plate. This design simplifies the installation process of the side connecting rod and improves the accuracy of positioning.

[0028] 3. Beneficial effects

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The sedimentation device for sewage treatment of the present invention is designed with a disassembly and assembly structure between the top cover and the sedimentation tank body, which can greatly improve the convenience of disassembly and assembly of the top cover. The top cover can be easily and quickly removed to clean the inner side of the sedimentation tank body and the filter frame, thereby improving the convenience of cleaning the sedimentation tank. The designed U-shaped seat, side seat and clamping structure improve the convenience of disassembly and assembly of the filter frame, and the filter frame can be easily and quickly removed for cleaning. The sedimentation tank of the present invention has the advantage of being easy to disassemble and assemble for cleaning in the later stage. Specifically: (1) A disassembly and assembly structure is provided between the top cover of the sedimentation device and the sedimentation tank body. This design makes the disassembly and assembly of the top cover simple and quick, without the need for complicated bolts or welding operations, and greatly reduces the workload and time during maintenance and cleaning. (2) The design of inserting the side clamp block into the side clamping slot realizes the stable fixation between the top cover and the sedimentation tank body, ensuring the sealing and stability of the top cover during the sewage treatment process, and preventing sewage leakage and odor emission. (3) A filter frame is installed inside the equipment, which cooperates with the U-shaped seats on both sides of the sedimentation tank body, making the installation of the filter frame more stable and convenient for replacing and cleaning the filter, thereby improving the efficiency and filtering effect of sewage treatment. (4) The water inlet and outlet are designed to be located on both sides of the sedimentation tank body. Such a layout helps to achieve uniform distribution and effective separation of sewage, improves the sedimentation effect, and reduces the accumulation of sediment. (5) The sedimentation device is compactly designed, and the various components are closely matched, which reduces the space occupied, making the equipment suitable for occasions with limited space, such as urban sewage treatment plants or industrial wastewater treatment facilities. (6) Due to the design of the disassembly and assembly structure, the maintenance and cleaning of the top cover are easier, reducing the workload and maintenance costs of maintenance personnel, and also reducing the risk of equipment failure caused by improper maintenance. (7) Through the optimized disassembly and assembly structure and the design of the filter frame, the wear and damage of the equipment are reduced, the service life of the equipment is extended, and long-term cost benefits are brought to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of the utility model;

[0032] Figure 2 It is a cross-sectional view of the utility model;

[0033] Figure 3 For this utility model Figure 2 A partial enlarged view of area A in the middle;

[0034] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle B area;

[0035] Figure 5 For this utility model Figure 3 A partial enlarged view of the middle C area;

[0036] In the figure: 1. Sedimentation tank body; 11. Water inlet; 12. Water outlet; 13. U-shaped seat; 2. Top cover; 21. Insert rod; 3. Disassembly and assembly structure; 31. Slide plate; 32. Card plate; 33. Side clamping block; 34. Side clamping groove; 35. Top slide; 36. Horizontal guide column; 361. Rubber seat; 362. Semicircular limiting protrusion; 37. Horizontal slide; 4. Filter frame; 41. Side seat; 51. Movable side plate; 52. Arc-shaped clamping block; 53. Rectangular clamping groove; 54. Inner slide; 55. Spring; 56. Inner slide; 57. Side connecting rod. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with specific embodiments.

[0038] The technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] Example

[0040] The sedimentation device for sewage treatment in this embodiment is as follows: Figure 1-5 As shown:

[0041] The device includes a sedimentation tank body 1, a water inlet 11 and a water outlet 12 respectively arranged on the two side surfaces of the sedimentation tank body 1, a top cover 2 arranged on the top of the sedimentation tank body 1, and two filter frames 4 installed on the inner side of the sedimentation tank body 1.

[0042] A disassembly and assembly structure 3 is provided between both ends of the top cover 2 and the sedimentation tank body 1. The disassembly and assembly structure 3 includes a slide 31 slidably arranged on the top surface of the top cover 2, a clamping plate 32 welded and fixed to the bottom surface of the slide 31 and located on the side of the sedimentation tank body 1, a side clamping block 33 welded and fixed to the side of the clamping plate 32, and a side clamping groove 34 provided on the side of the sedimentation tank body 1. The side clamping block 33 is inserted into the side clamping groove 34.

[0043] U-shaped seats 13 corresponding to the filter screen frame 4 are welded and fixed to the inner walls of both sides of the sedimentation tank body 1, and the two ends of the filter screen frame 4 are respectively inserted into the inner sides of the two U-shaped seats 13. When the sedimentation tank is actually in use, the sewage enters the inner side of the sedimentation tank body 1 through the water inlet 11 for sedimentation, and is preliminarily filtered by the filter screen frame 4 before being discharged through the water outlet 12.

[0044] The disassembly and assembly structure 3 further includes a top slot 35 formed on the top surface of the top cover 2, a transverse guide post 36 fixed within the top slot 35, and a transverse slider 37 slidably sleeved on the surface of the transverse guide post 36. The top end of the transverse slider 37 extends to the top of the top cover 2 and is fixed to the slide 31, allowing the slide 31 to slide smoothly laterally on the top of the top cover 2. A rectangular groove is formed at the top center of the transverse guide post 36, and a rubber seat 361 is installed within the groove. The top surface of the rubber seat 361 is provided with an integrated semicircular limiting protrusion 362. Both are made of rubber and will elastically deform when squeezed. At the same time, an elliptical cavity is formed within the rubber seat 361, allowing the semicircular limiting protrusion 362 to have sufficient deformation space when squeezed. The transverse slider 37 is located on one side of the semicircular limiting protrusion 362, so that the transverse slider 37 can be blocked and limited by the semicircular limiting protrusion 362 during daily use, preventing the slide 31 from moving sideways on its own. When the operator needs to remove the top cover 2 laterally, When cleaning the inner side of the sedimentation tank body 1 and the filter frame 4, it is only necessary to push the slide plate 31 sideways with force, so that the horizontal slide block 37 moves sideways and squeezes the semicircular limiting protrusion 362, so that the semicircular limiting protrusion 362 is squeezed and elastically deformed, and finally the horizontal slide block 37 can pass over the semicircular limiting protrusion 362, and the slide plate 31 and the card plate 32 can be smoothly moved sideways, and the side clamping block 33 moves out of the side clamping groove 34, thereby quickly releasing the limit on the top cover 2, and the top cover 2 can be moved up and removed at this time, improving the convenience of disassembly and assembly of the top cover 2, so that it is convenient for the operator to quickly remove the top cover 2 to clean the inner side of the sedimentation tank body 1 and the filter frame 4. Compared with the traditional sedimentation tank top cover disassembly and assembly method using multiple bolts, the disassembly and assembly structure 3 adopted by this sedimentation tank is more flexible and convenient.

[0045] Among them, two insertion rods 21 are symmetrically welded and fixed on the bottom surface of the top cover 2, and the two insertion rods 21 are inserted into the inner side of the sedimentation tank body 1 and respectively fit with the inner walls on both sides of the sedimentation tank body 1, so that the top cover 2 can be positioned after being covered on the top of the sedimentation tank body 1 to avoid lateral movement.

[0046] A side seat 41 is welded and fixed to one side surface of the filter frame 4 relative to the top of the U-shaped seat 13, and also includes a locking structure, which is arranged between the U-shaped seat 13 and the side seat 41. The locking structure includes a movable side plate 51 movably mounted on the side of the U-shaped seat 13, and the top of the movable side plate 51 extends to one side of the side seat 41. An arc-shaped clamping block 52 is welded and fixed to the top side of the movable side plate 51, and a rectangular clamping groove 53 is provided on the side of the side seat 41 for the arc-shaped clamping block 52 to be clamped. During actual use, the arc-shaped clamping block 52 will be clamped into the rectangular clamping groove 53, stably locking and limiting the filter frame 4 and the side seat 41, ensuring the installation stability of the filter frame 4. The locking structure also includes an inner slide groove 54 provided inside the U-shaped seat 13, a spring 55 and an inner slider 56 installed in the inner slide groove 54, and a side connecting rod 57 fixed to the side of the inner slider 56. The filter frame 4 can be directly lifted and pulled out from between the two U-shaped seats 13 until the filter frame 4 is pulled out from the top of the top cover 2, and the filter frame 4 can be quickly removed and cleaned, thereby improving the convenience of disassembly and cleaning of the filter frame 4.

[0047] A side hole communicating with the inner slide groove 54 is formed on the side surface of the U-shaped seat 13 , and the side hole corresponds to the side connecting rod 57 , allowing the side connecting rod 57 to pass through smoothly.

Claims

1. A sedimentation device for sewage treatment, characterized in that: The invention comprises a sedimentation tank body (1); a water inlet (11) and a water outlet (12) respectively arranged on both sides of the sedimentation tank body (1); a top cover (2) arranged on the top of the sedimentation tank body (1); and a filter screen frame (4) installed inside the sedimentation tank body (1); A disassembly structure (3) is provided between both ends of the top cover (2) and the sedimentation tank body (1); the disassembly structure (3) comprises a slide plate (31) slidably arranged on the top surface of the top cover (2), a clamping plate (32) fixed to the bottom surface of the slide plate (31) and located on the side of the sedimentation tank body (1), a side clamping block (33) fixed to the side of the clamping plate (32), and a side clamping groove (34) provided on the side of the sedimentation tank body (1), wherein the side clamping block (33) is inserted into the side clamping groove (34); U-shaped seats (13) corresponding to the filter screen frame (4) are provided on both inner walls of the sedimentation tank body (1), and the two ends of the filter screen frame (4) are respectively inserted into the inner sides of the two U-shaped seats (13).

2. The sedimentation device for sewage treatment according to claim 1, characterized in that: The disassembly and assembly structure (3) further includes a top sliding groove (35) provided on the top surface of the top cover (2), a transverse guide column (36) fixed in the top sliding groove (35), and a transverse slider (37) slidably sleeved on the surface of the transverse guide column (36), wherein the top end of the transverse slider (37) extends to the top of the top cover (2) and is fixed to the slide plate (31).

3. The sedimentation device for sewage treatment according to claim 2, characterized in that: A rectangular embedding groove is provided at the top center of the transverse guide column (36), and a rubber seat (361) is installed in the embedding groove; an integrated semicircular limiting protrusion (362) is provided on the top surface of the rubber seat (361); and the transverse sliding block (37) is located on one side of the semicircular limiting protrusion (362).

4. The sedimentation device for sewage treatment according to claim 1, characterized in that: Two insertion rods (21) are symmetrically fixed to the bottom surface of the top cover (2), and the two insertion rods (21) are both inserted into the inner side of the sedimentation tank body (1) and respectively fit with the inner walls on both sides of the sedimentation tank body (1).

5. The sedimentation device for sewage treatment according to claim 1, characterized in that: A side seat (41) is fixed to one side surface of the filter frame (4) above the U-shaped seat (13); and a latching structure is also included, the latching structure being arranged between the U-shaped seat (13) and the side seat (41).

6. The sedimentation device for sewage treatment according to claim 5, characterized in that: The latching structure comprises a movable side plate (51) movably mounted on the side of the U-shaped seat (13), and the top end of the movable side plate (51) extends to one side of the side seat (41); an arc-shaped latch block (52) is fixed to the top side of the movable side plate (51), and a rectangular latching groove (53) for the arc-shaped latch block (52) to be latched is provided on the side of the side seat (41).

7. The sedimentation device for sewage treatment according to claim 6, characterized in that: The locking structure also includes an inner slide groove (54) provided inside the U-shaped seat (13), a spring (55) and an inner slide block (56) installed in the inner slide groove (54), and a side connecting rod (57) fixed to the side of the inner slide block (56), one end of the side connecting rod (57) passes through the side of the U-shaped seat (13) and is fixed to the movable side plate (51).

8. The sedimentation device for sewage treatment according to claim 7, characterized in that: A side hole communicating with the inner slide groove (54) is provided on the side surface of the U-shaped seat (13), and the side hole corresponds to the side connecting rod (57).

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