A sludge treatment device for water supply and drainage engineering

Abstract

This utility model proposes a sludge treatment device for water supply and drainage engineering, including a treatment tank. The treatment tank contains a solid filter unit for filtering large particulate impurities from the sludge and a liquid filter unit for filtering liquid from the sludge. The solid filter unit is positioned above the liquid filter unit, and a pusher unit for pushing the sludge out of the treatment tank is located between the liquid and solid filter units. The solid and liquid filter units are arranged in layers, enabling step-by-step filtration of solid impurities and liquid in the sludge, improving treatment efficiency. Large particulate impurities are intercepted first, preventing clogging of subsequent liquid filter units and extending the device's service life. The pusher unit, located between the two filter units, automatically pushes the partially dewatered sludge out of the treatment tank, reducing manual intervention and operational intensity. The device has a compact structure, saves space, and integrates filtration and discharge functions in a single design.

Description

Technical Field

[0001] This utility model belongs to the technical field of sludge treatment, specifically a sludge treatment device for water supply and drainage engineering. Background Technology

[0002] In water supply and drainage engineering, sludge generated during wastewater treatment is an unavoidable byproduct. It has a complex composition, containing large amounts of organic matter, pathogenic microorganisms, heavy metals, and other harmful substances. Improper handling can not only cause secondary pollution but also pose a threat to the ecological environment and human health.

[0003] Chinese utility model patent CN217499023U discloses a sludge treatment device for water supply and drainage engineering, including a treatment tank and a support. The support is fixedly connected to the bottom of the treatment tank, and a waste outlet is opened at the top of one side of the treatment tank. The device is equipped with a waste outlet, baffle, fixing bolts, limiting plate, scraper, connecting shaft, first drive motor, screen, fixing frame, and limiting groove. After the sludge is introduced into the treatment tank, the first drive motor is started to drive the scraper to rotate through the connecting shaft. As the scraper rotates, it moves the sludge at the top of the screen, so that the sludge passes through the screen and falls into the bottom of the treatment tank. The limiting plate inside the treatment tank can limit the scraper through the limiting groove to ensure the stability of the scraper. After filtration, the baffle is removed from the inside of the waste outlet to remove the debris at the top of the screen. This solves the problem of not being able to quickly remove impurities from the sludge.

[0004] The aforementioned prior art can filter and remove impurities from sludge, but it cannot remove wastewater from sludge, thus reducing the water content of sludge. Consequently, the weight of sludge will not decrease, increasing the difficulty of transportation.

[0005] Therefore, how to effectively reduce the weight of sludge and thus reduce the difficulty of sludge transportation is an urgent technical problem to be solved. Utility Model Content

[0006] In view of the shortcomings in the above-mentioned background technology, this utility model proposes a sludge treatment device for water supply and drainage engineering, which solves the problem of how to effectively reduce the weight of sludge and thus reduce the difficulty of sludge transportation.

[0007] The technical solution of this application is as follows:

[0008] A sludge treatment device for water supply and drainage engineering includes a treatment tank. The treatment tank contains a solid filter unit for filtering large particulate impurities from the sludge and a liquid filter unit for filtering liquid from the sludge. The solid filter unit is positioned above the liquid filter unit. A pusher unit for ejecting sludge from the treatment tank is located between the liquid and solid filter units. The solid and liquid filter units are arranged in layers, enabling step-by-step filtration of solid impurities and liquid from the sludge, improving treatment efficiency. Large particulate impurities are intercepted first, preventing clogging of subsequent liquid filter units and extending the device's lifespan. The pusher unit, located between the two filter units, automatically ejects the partially dewatered sludge from the treatment tank, reducing manual intervention and operational intensity. The device has a compact structure, saves space, and integrates filtration and discharge functions in a single design.

[0009] Furthermore, the solid filtration unit includes an inclined filter screen, which is connected to the feed inlet and the waste outlet.

[0010] Furthermore, the liquid filtration unit includes a second filter screen, and a pressure plate that moves vertically above the second filter screen is provided by a first drive unit.

[0011] Furthermore, the drive unit includes a first hydraulic cylinder connected to the pressure plate.

[0012] Furthermore, the first filter screen includes a vibrating screen or a grid screen, and the second filter screen includes nylon filter cloth, sintered metal mesh, or wedge wire mesh.

[0013] Furthermore, the feeding unit includes a pusher plate connected to the second drive unit. The pusher plate is positioned above the second filter screen plate and moves in a horizontal direction. The second filter screen plate is connected to the sludge discharge port.

[0014] Furthermore, the inner end of the filter screen plate two is vertically provided with a vertical plate, and the drive unit two includes a motor connected to the vertical plate. The output shaft of the motor is connected to the drive gear, the drive gear meshes with a driven gear, the driven gear is fixed with an internal threaded sleeve, and the internal threaded sleeve is threadedly engaged with a screw connected to the push plate.

[0015] Furthermore, a baffle that is opened and closed by the drive unit 2 is provided on the outer side of the sludge discharge port, and the baffle is hinged to the outer wall of the treatment box by a hinge.

[0016] Furthermore, the second drive unit includes a second hydraulic cylinder, one end of which is connected to the outer wall of the processing box, and the other end of which is connected to a baffle.

[0017] Furthermore, the bottom of the processing tank is provided with an inclined angle for liquid to be discharged from the drain pipe.

[0018] The specific beneficial effects of this utility model include:

[0019] 1. The solid filtration unit and the liquid filtration unit are arranged in layers, which realizes the step-by-step filtration of solid impurities and liquids in sludge, improving the treatment efficiency; large particles of impurities are intercepted first to avoid clogging the subsequent liquid filtration unit and extend the service life of the device; the pushing unit is located between the two-stage filtration units and can automatically push the initially dewatered sludge out of the treatment box, reducing manual intervention and reducing the intensity of operation.

[0020] 2. Compact structure, space-saving, integrated design combines filtration and discharge functions, reduces reliance on external equipment, and is suitable for water supply and drainage engineering scenarios with limited space.

[0021] 3. Impurities in the sludge are removed through the solid filtration unit, and the water content of the sludge is reduced through the liquid filtration unit, thereby reducing the weight of the sludge and facilitating subsequent transportation. Attached Figure Description

[0022] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the present utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the present utility model. Figure 2 ;

[0025] Figure 3 This is a cross-sectional view of the present invention.

[0026] Explanation of icon numbers:

[0027] 1. Processing box; 2. Filter box;

[0028] 3. Filter screen plate 1; 4. Vertical plate; 5. Inclined plate;

[0029] 6. Filter screen plate two; 7. First hydraulic cylinder;

[0030] 8. Pressure plate; 9. Push plate;

[0031] 10. Internal threaded sleeve; 11. Screw;

[0032] 12. Driven gear; 13. Motor; 14. Driving gear;

[0033] 15. Hinge; 16. Baffle;

[0034] 17. Fixing plate one; 18. Fixing plate two; 19. Second hydraulic cylinder;

[0035] 20. Waste discharge outlet; 21. Sludge discharge outlet;

[0036] 22. Feed inlet; 23. Drain pipe. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] A sludge treatment device for water supply and drainage engineering, such as Figures 1-3 As shown, the system includes a processing tank 1, which contains a solid filter unit for filtering large particulate impurities from the sludge and a liquid filter unit for filtering liquid from the sludge. The solid filter unit is positioned above the liquid filter unit, and a pusher unit for pushing the sludge out of the processing tank 1 is located between the liquid filter unit and the solid filter unit. The solid and liquid filter units are arranged in layers, enabling step-by-step filtration of solid impurities and liquid from the sludge, improving processing efficiency. Large particulate impurities are intercepted first, preventing clogging of subsequent liquid filter units and extending the lifespan of the device. The pusher unit, located between the two filter units, automatically pushes the partially dewatered sludge out of the processing tank, reducing manual intervention and operational intensity. The system is compact, space-saving, and its integrated design combines filtration and discharge functions, reducing reliance on external equipment and making it suitable for site-constrained water supply and drainage engineering scenarios. The solid filter unit removes impurities from the sludge, while the liquid filter unit reduces the sludge's water content, thereby reducing its weight and facilitating subsequent transportation.

[0039] Based on the above embodiments, as a preferred embodiment, the solid filtration unit includes an inclined filter screen 3, which is connected to the feed inlet 22 and the waste outlet 20 respectively.

[0040] Specifically, a small box 2 is provided on the top of the treatment box 1, and a filter screen 3 is inclinedly inserted into the small box 2. The top of the small box 2 is provided with an inlet 22 for pouring sludge. After the filter screen 3 filters the impurities in the sludge, the sludge falls downwards, and the impurities filtered by the filter screen 3 are discharged from the discharge port 20 provided on the side of the small box 2.

[0041] Specifically, filter screen 3 is a large-aperture filter screen that can filter large impurities in sludge without affecting the passage of sludge through the filter screen 3. The filter screen 3 can be connected to a vibrating motor to facilitate the rolling of impurities remaining on the filter screen 3 at an inclined angle and their discharge from the discharge port 20. The filter screen 3 also includes a vibrating screen or a grid screen. An inclined plate 5 is provided below the filter screen 3, and the sludge filtered from the filter screen 3 is then collected by the inclined plate 5 into the liquid filtration unit.

[0042] Based on the above embodiments, as a preferred embodiment, the liquid filtration unit includes a second filter screen plate 6, and a pressure plate 8 that moves vertically above the second filter screen plate 6 via a drive unit 1. During the compression of the sludge by the pressure plate 8, water in the sludge passes through the second filter screen plate 6, liquid flows down from the second filter screen plate 6, and the sludge remains on the second filter screen plate 6. The second filter screen plate 6 can be made of nylon filter cloth, sintered metal mesh, or wedge wire mesh.

[0043] Specifically, the mesh count of the second filter plate 6 is less than that of the first filter plate 3.

[0044] Based on the above embodiments, as a preferred embodiment, the drive unit 1 includes a first hydraulic cylinder 7 connected to the pressure plate 8.

[0045] Based on the above embodiments, as a preferred embodiment, the pushing unit includes a push plate 9 connected to the second driving unit. The push plate 9 is disposed above the second filter screen plate 6 and moves in the horizontal direction. The push plate 9 is perpendicular to the second filter screen plate 6, and the second filter screen plate 6 is connected to the mud discharge port 21.

[0046] Based on the above embodiments, as a preferred embodiment, a vertical plate 4 is vertically arranged at the inner end of the filter screen plate 6. The drive unit 2 includes a motor 13 connected to the vertical plate 4. The output shaft of the motor 13 is connected to a drive gear 14. The drive gear 14 meshes with a driven gear 12. The driven gear 12 is fixed to an internal threaded sleeve 10. The internal threaded sleeve 10 is threadedly engaged with a screw 11 connected to the push plate 9. The output shaft of the motor 13 drives the drive gear 14 to rotate, which in turn drives the driven gear 12 and the internal threaded sleeve 10 to rotate. The internal threaded sleeve 10 is threadedly engaged with the screw 11, causing the push plate 9 to move back and forth.

[0047] Specifically, the driven gear 12 is fixed in axial position and can be connected to the vertical plate 4 by bearings.

[0048] Preferably, two limiting rods are fixedly installed on the push plate 9. Both limiting rods pass through the vertical plate 4 and are slidably connected to the vertical plate 4. By setting the limiting rods, the push plate 9 can be restricted, so that the push plate 9 can move smoothly.

[0049] Based on the above embodiments, as a preferred embodiment, a baffle 16, which is opened and closed by a second drive unit, is provided on the outer side of the sludge discharge port 21. The baffle 16 is hinged to the outer wall of the treatment tank 1 via a hinge 15. The second drive unit includes a second hydraulic cylinder 19, one end of which is connected to the outer wall of the treatment tank 1, and the other end of which is connected to the baffle 16. When the second hydraulic cylinder 19 extends, it can push the baffle 16 to rotate around the hinge point to open, and the push plate 9 pushes the sludge out of the sludge discharge port 21.

[0050] Specifically, both hinged members 15 are hinged to one side of the treatment box 1, and a baffle 16 is fixedly installed on the two hinged members 15. Two fixing plates 17 are fixedly installed on both sides of the treatment box 1, and two fixing plates 18 are fixedly installed on both sides of the baffle 16. Two second hydraulic cylinders 19 are hinged to the two fixing plates 17, and the output shafts of the two second hydraulic cylinders 19 are hinged to the two fixing plates 18. When the baffle 16 is closed, it can prevent sludge leakage during the sludge squeezing and filtration process; when the baffle 16 is open, it facilitates the discharge of sludge from the treatment box 1. The baffle 16 is compatible with the sludge discharge port 21.

[0051] Based on the above embodiments, as a preferred embodiment, the bottom of the treatment tank 1 is provided with an inclined angle for liquid to be discharged from the drain pipe 23. The filtered liquid flows to the bottom of the treatment tank 1 and is easily discharged from the treatment tank 1 along the inclined angle.

[0052] The working principle of this utility model is as follows:

[0053] First step: When in use, the sludge is fed into the filter box 2 through the feed port 22. The filter screen 3 filters the impurities in the sludge and then falls onto the inclined plate 5. The impurities are discharged from the discharge port 20. At this time, the push plate 9 is attached to the vertical plate 4, the feeding is stopped, and the sludge is allowed to fall onto the filter screen 6. The first hydraulic cylinder 7 is started. The first hydraulic cylinder 7 drives the pressure plate 8 to move down and squeeze the sludge. The sewage in the sludge is filtered out through the filter screen 6.

[0054] Second step: Start the second hydraulic cylinder 19. The second hydraulic cylinder 19 pushes the baffle 16 to open the baffle 16. Start the motor 13. The motor 13 drives the drive gear 14 to rotate. The drive gear 14 drives the driven gear 12 to rotate. The driven gear 12 drives the internal threaded sleeve 10 to rotate. The internal threaded sleeve 10 drives the screw 11 to move. The screw 11 drives the push plate 9 to move, pushing the filtered sludge out of the treatment box 1 through the sludge discharge port 21. After the sludge is discharged from the treatment box 1, the next feeding can be carried out. At this time, the push plate 9 is reset, away from the sludge discharge port 21, and attached to the vertical plate 4.

[0055] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0056] The above content shows and describes the basic principles, main features, and beneficial effects of this utility model. The above description is merely a preferred embodiment of this utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0057] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0058] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A sludge treatment device for water supply and drainage engineering, characterized in that: The system includes a processing box (1), which is equipped with a solid filter unit for filtering large particulate impurities in sludge and a liquid filter unit for filtering liquid in sludge. The solid filter unit is located above the liquid filter unit, and a pusher unit for pushing sludge out of the processing box (1) is also provided between the liquid filter unit and the solid filter unit.

2. The sludge treatment device for water supply and drainage engineering according to claim 1, characterized in that: The solid filtration unit includes an inclined filter screen (3), which is connected to the feed inlet (22) and the waste outlet (20).

3. The sludge treatment device for water supply and drainage engineering according to claim 2, characterized in that: The liquid filtration unit includes a filter screen plate two (6), and a pressure plate (8) that moves vertically via a drive unit one is provided above the filter screen plate two (6).

4. The sludge treatment device for water supply and drainage engineering according to claim 3, characterized in that: The drive unit includes a first hydraulic cylinder (7) connected to the pressure plate (8).

5. The sludge treatment device for water supply and drainage engineering according to claim 4, characterized in that: The first filter screen (3) includes a vibrating screen or a grid screen, and the second filter screen (6) includes nylon filter cloth, sintered metal mesh or wedge wire mesh.

6. The sludge treatment device for water supply and drainage engineering according to claim 5, characterized in that: The feeding unit includes a pusher plate (9) connected to the second drive unit. The pusher plate (9) is positioned above the second filter screen plate (6) and moves in the horizontal direction. The second filter screen plate (6) is connected to the mud discharge port (21).

7. The sludge treatment device for water supply and drainage engineering according to claim 6, characterized in that: The inner end of the filter screen plate 2 (6) is vertically provided with a vertical plate (4). The drive unit 2 includes a motor (13) connected to the vertical plate (4). The output shaft of the motor (13) is connected to the drive gear (14). The drive gear (14) meshes with the driven gear (12). The driven gear (12) is fixed with the internal thread sleeve (10). The internal thread sleeve (10) is threadedly engaged with the screw (11) connected to the push plate (9).

8. The sludge treatment device for water supply and drainage engineering according to claim 7, characterized in that: The outer side of the sludge discharge port (21) is provided with a baffle (16) that is opened and closed by the drive unit 2. The baffle (16) is hinged to the outer wall of the treatment box (1) by a hinge (15).

9. The sludge treatment device for water supply and drainage engineering according to claim 8, characterized in that: The second drive unit includes a second hydraulic cylinder (19), one end of which is connected to the outer wall of the processing box (1), and the other end of which is connected to the baffle (16).

10. The sludge treatment device for water supply and drainage engineering according to any one of claims 1-9, characterized in that: The bottom of the treatment tank (1) is provided with an inclined angle for liquid to be discharged from the drain pipe (23).

Images