A sludge discharge pump backwashing device

By designing a multi-layered filtration structure and a precise sealing mechanism for the sludge discharge pump backwashing device, the problem of time-consuming and labor-intensive manual rinsing in existing technologies has been solved, achieving automated and efficient sludge cleaning and stable equipment operation.

CN224453235UActive Publication Date: 2026-07-03NINGXIA BAOFENG ENERGY GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA BAOFENG ENERGY GROUP CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing sludge discharge pump requires two people to manually flush it regularly, which is time-consuming and labor-intensive, affecting long-term use and treatment efficiency.

Method used

A sludge discharge pump backwashing device was designed, which includes a multi-layer filtration structure and a precisely controlled sealing mechanism. It replaces manual rinsing with an automated backwashing process. The device includes an activated carbon layer, a sponge filter, and a granular filter in the filter box, as well as a worm gear drive sealing disc design, to achieve efficient sludge cleaning.

Benefits of technology

It achieves efficient sludge cleaning, improves the automation level of sludge treatment and the operational reliability of equipment, prevents sludge leakage and blockage, and extends the service life of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of sludge discharge pump technology and discloses a sludge discharge pump backwashing device, comprising: a pump body, a base fixedly installed at the bottom of the pump body, a water pump fixedly installed at the top of the base, an inlet ring connected to the output end of the water pump via a water pipe, and multiple nozzles connected to the surface of the inlet ring, the nozzles being connected to the pump body. This utility model utilizes a multi-layered filtration structure within the filter box, where a granular filter effectively blocks larger particles of impurities in the water, a sponge filter intercepts fine suspended solids and colloidal substances, and an activated carbon layer adsorbs odors, pigments, and some small molecule impurities in the water. Through the synergistic effect of these three filtration layers, the backwash water source can be deeply purified, effectively preventing various impurities from entering the water pump and nozzles, thus achieving efficient backwashing, replacing manual flushing, and improving flushing efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of sludge discharge pump technology, and in particular to a sludge discharge pump backwashing device. Background Technology

[0002] Sludge discharge pumps, as key equipment for sludge treatment, play an indispensable role in many industries. Their working principle is based on specific mechanical structure and power transmission, which can effectively suck up and discharge sludge with a certain viscosity and concentration, which often contains solid particles and fibers.

[0003] Industrial production requires the long-term use of sludge discharge pumps. To avoid the long-term operation of sludge discharge pumps, two people are needed to manually flush the sludge discharge pumps regularly. This is time-consuming and labor-intensive, which is not conducive to the long-term use of sludge discharge pumps and reduces the efficiency of sludge treatment.

[0004] To address this problem, a sludge discharge pump backwashing device is proposed. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem that in order to avoid the long-term operation of the sludge discharge pump, two people are required to manually flush the sludge discharge pump regularly, which is time-consuming and labor-intensive, not conducive to the long-term use of the sludge discharge pump, and reduces the sludge treatment efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A sludge discharge pump backwashing device includes: a pump body, a base, a water pump, an inlet ring, a nozzle, and a feed inlet. The base is fixedly installed at the bottom of the pump body, and the water pump is fixedly installed at the top of the base. The inlet ring is connected to the output end of the water pump via a water pipe. The nozzle is connected to the surface of the inlet ring and is connected to the pump body. The feed inlet is located at the bottom of the pump body. The device also includes: a filter box, a filtration mechanism, and a sealing mechanism. The filter box is connected to the input end of the water pump via a water pipe. The filtration mechanism is located inside the filter box, and the sealing mechanism is located on the surface of the feed inlet.

[0009] As a further embodiment of this utility model: the filtration mechanism includes partitions, which are fixedly installed inside the filter box. The number of partitions is several and they are evenly distributed in a straight line. The material of the partitions is metal.

[0010] As a further embodiment of this utility model: the filter box includes an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are fixedly connected by bolts, and the partition plate is fixedly installed on the surface of the upper cover plate and the lower cover plate.

[0011] As a further improvement of this utility model: the inner side of the partition is provided with an activated carbon layer, a sponge filter and a particle filter from left to right.

[0012] As a further embodiment of this utility model: the sealing mechanism includes a protective cover, which is fixedly installed on the surface of the feed inlet, and a sealing cover plate is movably connected to the outside of the protective cover via a shaft pin, and the sealing cover plate is used in conjunction with the protective cover.

[0013] As a further embodiment of this utility model: a motor is fixedly installed on the surface of the inner wall of the protective cover, and a worm gear is fixedly connected to the output end of the motor. The top of the worm gear is movably connected to the top of the inner wall of the protective cover through a bearing seat.

[0014] As a further embodiment of this utility model: a worm wheel is engaged on the surface of the worm, and a rotating rod is fixedly connected inside the worm wheel.

[0015] As a further embodiment of this utility model: the rotating rod passes through the inner wall of the feed inlet and is fixedly connected to a sealing circular plate, which is used in conjunction with the feed inlet.

[0016] As a further improvement of this utility model: the worm gear rotates within a certain range, and the worm gear is used in conjunction with the rotating rod.

[0017] As a further improvement of this utility model: the protective cover provides efficient protection for the internal motor, and the sealing cover prevents sewage from entering the interior of the protective cover.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, the multi-layer filtration structure inside the filter box plays an important role. The particle filter can effectively block larger particles of impurities in the water, the sponge filter can intercept fine suspended solids and colloidal substances, and the activated carbon layer can adsorb odors, pigments and some small molecule impurities in the water. Through the synergistic effect of these three layers of filtration, the backwash water source can be deeply purified, effectively preventing various impurities from entering the water pump and nozzle, thereby achieving efficient backwashing, replacing manual rinsing and improving rinsing efficiency.

[0020] 2. In this utility model, the worm gear is strictly limited to rotating within a 90-degree range. This design, together with the transmission of the worm, the connection of the rotating rod, and the movement of the sealing disc, enables precise control of the switching process between the feeding and backwashing conditions. In the sealed state, the sealing disc fits tightly with the feed inlet, ensuring a high degree of tightness during sealing and effectively preventing sludge leakage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the pump body structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the water pump structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the activated carbon layer structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the protective cover structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the sealing circular plate of this utility model.

[0026] Legend:

[0027] 1. Pump body; 2. Base; 3. Water pump; 4. Inlet ring; 5. Nozzle; 6. Filter box; 7. Filtering mechanism; 8. Partition plate; 9. Top cover plate; 10. Bottom cover plate; 11. Activated carbon layer; 12. Sponge filter screen; 13. Granular filter screen; 14. Feed inlet; 15. Sealing mechanism; 16. Protective cover; 17. Sealing cover plate; 18. Motor; 19. Worm gear; 20. Worm wheel; 21. Rotating rod; 22. Sealing circular plate. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0031] Example 1:

[0032] Please see Figure 1 - Figure 5 This is the first embodiment of the present invention.

[0033] This embodiment provides a sludge discharge pump backwashing device, including: a pump body 1, a base 2 fixedly installed at the bottom of the pump body 1, a water pump 3 fixedly installed at the top of the base 2, an inlet ring 4 connected to the output end of the water pump 3 through a water pipe, a plurality of nozzles 5 connected to the surface of the inlet ring 4, the nozzles 5 being connected to the pump body 1, a filter box 6 connected to the input end of the water pump 3 through a water pipe, a filter mechanism 7 being provided inside the filter box 6, a feed inlet 14 being provided at the bottom of the pump body 1, and a sealing mechanism 15 being provided on the surface of the feed inlet 14;

[0034] The base 2 provides a stable support for the pump body 1 and the water pump 3, reducing vibration during equipment operation, enhancing the overall structural stability, and extending the service life of the equipment; the water pump 3, as a power source, can stably output water flow, providing sufficient power for the backwashing process and ensuring the rinsing effect.

[0035] The water inlet ring 4, in conjunction with multiple nozzles 5, can evenly disperse water flow and spray it into the pump body 1, achieving all-round, no-dead-angle flushing, effectively removing residual sludge inside the pump, avoiding blockage, and maintaining the efficient operation of the pump body 1.

[0036] The filter box 6 and the internal filter mechanism 7 can filter the water entering the water pump 3, intercept impurities, prevent the nozzle 5 and the water pump 3 from being blocked, and ensure the continuous and stable operation of the backwashing system.

[0037] The filtration mechanism 7 includes partitions 8, which are fixedly installed inside the filter box 6. There are several partitions 8, which are evenly distributed in a straight line. The partitions 8 are made of metal. The metal partitions 8 effectively prevent corrosion from mud and water, and at the same time, they efficiently position the filter material inside the filter box 6, preventing the filter material from shaking and ensuring the stability of the filter box 6, making it convenient for users to use.

[0038] Reference Figure 1-5 The filter box 6 includes an upper cover plate 9 and a lower cover plate 10, which are fixedly connected by bolts. The partition plate 8 is fixedly installed on the surface of the upper cover plate 9 and the lower cover plate 10. This detachable connection method facilitates cleaning, inspection or replacement of the inside of the filter box 6 and the partition plate 8, reducing maintenance difficulty and cost. The partition plate 8 is fixedly installed on the surface of the upper cover plate 9 and the lower cover plate 10, which not only ensures the firmness of the partition plate 8 installation and prevents it from shifting under the impact of water flow and affecting the filtration effect, but also allows the partition plate 8 to be operated simultaneously during disassembly and assembly, further improving the convenience of maintenance.

[0039] The inner side of the partition 8 is provided with an activated carbon layer 11, a sponge filter 12 and a granular filter 13 arranged from left to right. The activated carbon layer 11, sponge filter 12 and granular filter 13 arranged from left to right on the inner side of the partition 8 form a multi-layer gradient filtration structure: the activated carbon layer 11 can adsorb odors, pigments and some small molecule impurities in the water, and improve the water quality.

[0040] The sponge filter 12 can intercept fine suspended solids and colloidal substances in the water, further purifying the water flow; the particle filter 13 can effectively block larger particles of impurities, preventing them from entering the subsequent system. The three work together to improve the filtration accuracy and effect, provide a cleaner water source for backwashing, better protect the water pump 3 and nozzle 5, and ensure that the backwashing process is efficient and stable.

[0041] Example 2:

[0042] Please see Figure 1 - Figure 5 This is the second embodiment of the present utility model.

[0043] For example, the sealing mechanism 15 includes a protective cover 16, which is fixedly installed on the surface of the feed inlet 14. A sealing cover 17 is movably connected to the outside of the protective cover 16 via a shaft pin. The sealing cover 17 works in conjunction with the protective cover 16. The protective cover 16 provides efficient protection for internal components such as the motor 18. At the same time, the sealing cover 17 prevents sewage from entering the interior of the protective cover 16, which could damage the motor 18 and improve the safety of using the motor 18 and other components.

[0044] A motor 18 is fixedly installed on the inner wall surface of the protective cover 16. A worm gear 19 is fixedly connected to the output end of the motor 18. The top of the worm gear 19 is movably connected to the top of the inner wall of the protective cover 16 through a bearing seat. The motor 18 serves as a drive source, providing stable power for the rotation of the worm gear 19. The rotation of the worm gear 19 can drive related components to work together. The movable connection between the top of the worm gear 19 and the top of the inner wall of the protective cover 16 through the bearing seat not only ensures the stability of the worm gear 19 during rotation, reduces shaking and wear, and extends the service life of components, but also makes power transmission smoother, avoids power loss caused by unstable connection, and further improves the operational reliability of the entire sealing mechanism 15.

[0045] Reference Figure 1-5 The worm gear 19 has a worm wheel 20 meshing on its surface. A rotating rod 21 is fixedly connected inside the worm wheel 20. The rotating rod 21 passes through the inner wall of the feed inlet 14 and is fixedly connected to a sealing circular plate 22. The sealing circular plate 22 works in conjunction with the feed inlet 14. The meshing transmission between the worm gear 19 and the worm wheel 20 has the characteristics of precise transmission ratio and smooth operation.

[0046] When the motor 18 drives the worm gear 19 to rotate, it can efficiently transmit power to the rotating rod 21 through the worm wheel 20, driving the sealing disc 22 to rotate precisely, achieving tight sealing or smooth opening of the feed inlet 14. Compared with the traditional sealing method, this mechanical transmission structure allows the sealing disc 22 to fit more closely with the feed inlet 14, significantly improving the sealing effect and effectively preventing sludge leakage and water overflow during backwashing. At the same time, the power loss during transmission is small, the operation response is fast, and the rotation angle of the sealing disc 22 can be precisely controlled to adapt to the opening and closing requirements of the feed inlet 14 under different working conditions. It ensures both the smoothness of feeding and the tightness of backwashing, greatly improving the automation level and operational reliability of the device. The rotation range of the worm wheel 20 is limited to 90 degrees, which ensures that the rotating rod 21 connected to it drives the sealing disc 22 to perform controllable rotation. When the worm wheel 20 rotates 0 degrees, the sealing disc 22 can completely fit the feed inlet 14 to achieve tight sealing.

[0047] When rotated 90 degrees, the sealing disc 22 can be fully opened, ensuring unobstructed access to the feed inlet 14. This perfectly meets the switching requirements between feeding and backwashing conditions, preventing component wear or seal failure due to excessive rotation. Simultaneously, the tight cooperation between the worm gear 20 and the rotating rod 21 makes this 90-degree rotation transmission more direct and efficient, ensuring precise synchronization between the movement of the sealing disc 22 and the rotation of the worm gear 20. This prevents situations where insufficient rotation affects sealing or feeding, and also avoids structural damage due to excessive rotation. This further enhances the operational stability and service life of the sealing mechanism 15, making the device more efficient and safer when switching operating conditions.

[0048] Working Principle: During operation, the backwashing device of this sludge discharge pump starts with the internal motor 18, which outputs power to drive the worm gear 19, which is fixedly connected to it, to rotate steadily. Because the worm gear 19 and worm wheel 20 are precisely meshed, the rotation of the worm gear 19 drives the worm wheel 20 to rotate synchronously. The worm wheel 20 is strictly limited to a 90-degree rotation range, ensuring the controllability of the entire transmission process. During the rotation of the worm wheel 20, the rotating rod 21, which is fixedly connected to it internally, is driven synchronously. The rotating rod 21 passes through the inner wall of the feed inlet 14 and is fixedly connected to the sealing disc 22. Therefore, the rotation of the rotating rod 21 directly causes the sealing disc 22 to rotate at a corresponding angle. When the worm gear 20 rotates to 0 degrees, the sealing disc 22 will completely fit against the inner wall of the feed inlet 14, thereby achieving a tight seal on the feed inlet 14. In this state, the device can prevent sludge from re-entering, thus stably cleaning the inside of the pump body 1. At the same time, the water pump 3 will start running, and the external water source will be introduced into the filter box 6. After being filtered and purified layer by layer by the baffle 8 inside the filter box 6 (and the activated carbon layer 11, sponge filter 12 and granular filter 13 arranged from left to right on the inner side of the baffle 8), the clean water will be transported to the water inlet ring 4 through the water pipe, and then sprayed evenly and powerfully into the inside of the pump body 1 by multiple nozzles 5 connected to the surface of the water inlet ring 4, to thoroughly backwash the sludge remaining inside the pump body 1, so as to ensure the cleanliness and normal operation of the pump body 1.

[0049] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0051] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sludge discharge pump backwashing device, characterized in that: include: The pump body (1), base (2), water pump (3), inlet ring (4), nozzle (5), and feed inlet (14) are provided. The base (2) is fixedly installed at the bottom of the pump body (1), the water pump (3) is fixedly installed at the top of the base (2), the inlet ring (4) is connected to the output end of the water pump (3) through a water pipe, the nozzle (5) is connected to the surface of the inlet ring (4), the nozzle (5) is connected to the pump body (1), and the feed inlet (14) is located at the bottom of the pump body (1). The pump body also includes: The filter box (6), the filter mechanism (7), and the sealing mechanism (15) are provided. The filter box (6) is connected to the input end of the water pump (3) through a water pipe. The filter mechanism (7) is located inside the filter box (6). The sealing mechanism (15) is located on the surface of the feed inlet (14).

2. The sludge discharge pump backwashing device according to claim 1, characterized in that: The filtration mechanism (7) includes a partition (8), which is fixedly installed inside the filter box (6). There are several partitions (8) and they are evenly distributed in a straight line. The material of the partition (8) is metal.

3. The sludge discharge pump backwashing device according to claim 2, characterized in that: The filter box (6) includes an upper cover plate (9) and a lower cover plate (10), which are fixedly connected by bolts. The partition plate (8) is fixedly installed on the surface of the upper cover plate (9) and the lower cover plate (10).

4. The sludge discharge pump backwashing device according to claim 3, characterized in that: The inner side of the partition (8) is provided with an activated carbon layer (11), a sponge filter (12) and a particle filter (13) arranged from left to right.

5. The sludge discharge pump backwashing device according to claim 1, characterized in that: The sealing mechanism (15) includes a protective cover (16), which is fixedly installed on the surface of the feed inlet (14). A sealing cover (17) is movably connected to the outside of the protective cover (16) via a shaft pin. The sealing cover (17) works in conjunction with the protective cover (16).

6. The sludge discharge pump backwashing device according to claim 5, characterized in that: A motor (18) is fixedly installed on the surface of the inner wall of the protective cover (16). A worm gear (19) is fixedly connected to the output end of the motor (18). The top of the worm gear (19) is movably connected to the top of the inner wall of the protective cover (16) through a bearing seat.

7. A sludge discharge pump backwashing device according to claim 6, characterized in that: The worm (19) is meshed with a worm wheel (20), and a rotating rod (21) is fixedly connected inside the worm wheel (20).

8. The sludge discharge pump backwashing device according to claim 7, characterized in that: The rotating rod (21) passes through the inner wall of the feed inlet (14) and is fixedly connected to a sealing disc (22), which is used in conjunction with the feed inlet (14).

9. A sludge discharge pump backwashing device according to claim 8, characterized in that: The worm gear (20) rotates within a 90-degree range and is used in conjunction with the rotating rod (21).

10. A sludge discharge pump backwashing device according to claim 6, characterized in that: The protective cover (16) provides efficient protection for the internal motor (18), and the sealing cover (17) prevents sewage from entering the interior of the protective cover (16).