Sludge dynamic filtration device

Abstract

This utility model belongs to the field of sludge filtration technology and discloses a dynamic sludge filtration device, including a housing. A filtration unit and a discharge unit are connected to the outside of the housing via a rotating motor and a discharge motor, respectively. The filtration unit and discharge unit are located inside the housing. A water pumping unit is located at the top of the housing and connected to the water pumping unit via a filtration water pumping pipe. The discharge unit is located at the bottom of the filtration unit and the water pumping unit. This utility model can increase the sludge contact area and filtration area, allowing liquid to penetrate into the filter housing more quickly. Combined with the rotating water pumping component, the liquid is promptly extracted, improving the speed and efficiency of sludge dewatering and shortening the processing cycle. The rotating motor drives a rotating rod, which in turn causes the filter housing to rotate within the sludge. Dewatering is achieved using the principle of free liquid permeation. Compared to traditional methods that rely on strong external force for dewatering, this effectively reduces the moisture content of the filter cake and significantly reduces energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of sludge filtration technology, specifically to a dynamic sludge filtration device. Background Technology

[0002] With the acceleration of industrialization and urbanization, the amount of sludge generated during wastewater treatment is increasing year by year. As a byproduct of wastewater treatment, sludge is characterized by high water content, complex composition, and potential environmental hazards. Its efficient treatment and resource utilization have become important issues in the field of environmental protection.

[0003] However, while traditional sludge dewatering technologies are widely used in wastewater treatment, they have many drawbacks. Plate and frame filter press technology relies on mechanical pressure to dewater sludge, requiring frequent replacement of filter cloths, resulting in huge energy consumption during equipment operation, and the moisture content of the filter cake is difficult to further reduce. Belt filter press technology uses two filter belts to compress sludge, which is greatly affected by the properties of the sludge, has poor treatment effect on highly viscous sludge, low treatment efficiency, and high energy consumption costs. Centrifugal separation technology uses centrifugal force to achieve solid-liquid separation, which requires high equipment performance, has high equipment maintenance costs, high energy consumption during operation, and the moisture content of the dewatered filter cake is also relatively low.

[0004] Existing sludge filtration technologies not only increase the difficulty of subsequent sludge treatment and disposal, but also lead to high treatment costs for enterprises, making it difficult to meet the current environmental protection requirements for efficient sludge dewatering. New dewatering technologies are urgently needed to overcome this predicament. Utility Model Content

[0005] The purpose of this invention is to provide a dynamic sludge filtration device to overcome the problems existing in the prior art. This invention can increase the sludge contact area and the filtration area, allowing liquid to penetrate into the filter housing more quickly. Combined with the rotating water pumping component, the liquid is extracted in time, which greatly improves the speed and efficiency of sludge dewatering and shortens the processing cycle. By rotating the motor to drive the rotating rod, the filter housing rotates in the sludge. Dewatering is carried out by the principle of free liquid permeation. Compared with the traditional method of dewatering by strong external force, it can effectively reduce the moisture content of the filter cake and significantly reduce energy consumption. At the same time, the ring buckle can facilitate the replacement and cleaning of the filter cloth.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A dynamic sludge filtration device includes a housing. A filtration unit and a discharge unit are connected to the outside of the housing via a rotary motor and a discharge motor, respectively. The filtration unit and the discharge unit are located inside the housing. A water pumping unit is installed at the top of the housing and is connected to the water pumping unit via a filtration water pumping pipe. The discharge unit is located at the bottom of the filtration unit and the water pumping unit.

[0008] The filtration unit includes several filter housings that are sequentially arranged through a filtration pumping pipe. Each filter housing has filter cloth on both sides, with the filter cloth located outside the filter housing. A rotating pumping assembly is installed on the filtration pumping pipe inside the filter housing. A support rod is installed on one side of the filter housing, and a rotating rod is installed on the other side of the filter housing. A rotating motor is connected to the rotating rod for driving the filter housing to rotate through the rotating rod, and the filter housing drives the support rod to rotate.

[0009] Furthermore, the rotating water pumping assembly includes a rotating joint installed on a filter water pumping pipe located inside the filter housing. The filter water pumping pipe is connected to a water pumping head through the rotating joint, and the water pumping head is located inside the filter housing.

[0010] Furthermore, the surface of the support rod is smooth, while the surface of the rotating rod is rough;

[0011] Furthermore, the surfaces of the support rod and the rotating rod are provided with several pairs of equidistant bosses, and the distance between each pair of equidistant bosses is adapted to the thickness of the filter housing, which is used to limit the position of the filter housing.

[0012] Furthermore, support beams are provided on both sides of the filter housing, and the two support beams are installed on the filter water pumping pipe. The support beams are fixed to the inside of the box through the filter water pumping pipe.

[0013] Furthermore, the top of the filter housing is provided with an annular buckle, and the filter cloth is set on both sides of the filter housing through the annular buckle;

[0014] Furthermore, the pumping unit includes a main pumping pipe, one end of which is equipped with a pumping pump. The main pumping pipe is connected to the filter pumping pipe through several branch pumping pipes. Each branch pumping pipe is connected to the main pumping pipe through a quick connector. Each branch pumping pipe is also equipped with a pipe valve, which is located on the top of the quick connector.

[0015] Furthermore, the discharge unit includes a spiral discharge device with one end connected to the discharge motor, and a discharge outlet is provided at the other end of the spiral discharge device.

[0016] Furthermore, a porous medium is provided at the discharge outlet;

[0017] Furthermore, a discharge valve is also provided at the discharge outlet.

[0018] The above technical solution has the following advantages or beneficial effects:

[0019] This invention provides a dynamic sludge filtration device. Multiple filter housings of the filtration unit are sequentially arranged through a filtration pumping pipe, and filter cloths are provided on both sides of the filter housings. This increases the sludge contact area, thereby increasing the filtration area and allowing liquid to penetrate into the filter housings more quickly. Combined with a rotating pumping component, the liquid is promptly extracted, significantly improving the speed and efficiency of sludge dewatering and shortening the processing cycle. A rotating motor drives a rotating rod, which in turn rotates the filter housings within the sludge, utilizing the principle of free liquid permeation for dewatering. Compared to traditional methods relying on strong external force for dewatering, this significantly reduces energy consumption. Each filter housing is relatively independent; if a filter housing or its filter cloth malfunctions, it can be individually disassembled for replacement or cleaning without requiring large-scale disassembly of the entire device, reducing downtime and maintenance costs and ensuring production continuity. Furthermore, the discharge unit is located at the bottom, enabling timely discharge of deposited solid sludge, preventing accumulation that could affect the filtration effect and further enhancing the stability and reliability of the device's operation.

[0020] Furthermore, during the operation of the device, the filter housing needs to be rotated by the rotating rod to promote the penetration of liquid in the sludge through the filter cloth into the interior of the filter housing, while the pump head needs to remain fixed to stably extract the filtered liquid. The rotating joint is connected to the filter pumping pipe, allowing the filter housing to rotate freely, while the pump head does not rotate with the filter housing. This achieves relative independence between the filtration and pumping actions, ensures the stability of the pumping process, avoids problems such as pipe entanglement and water flow turbulence caused by the rotation of the pump head, and guarantees pumping efficiency.

[0021] Furthermore, the smooth surface of the support rod reduces friction with surrounding components, thereby reducing energy consumption and wear; the rough surface of the rotating rod increases friction with transmission components, ensuring stable power transmission, making the rotation of the filter housing more reliable, and guaranteeing the filtration effect and operational stability of the device.

[0022] Furthermore, by setting the width of the equidistant bosses to match the filter housing, the position of the filter housing can be effectively restricted, preventing it from shifting or shaking during rotation or operation, ensuring stable operation of the filter housing, ensuring normal operation of the filter unit, and improving the overall filtration effect and operational reliability of the sludge dynamic filtration device.

[0023] Furthermore, the support beams are set on both sides of the filter housing and installed in the filter water pumping pipe. They are fixed to the inside of the box by the pipe, which can provide stable support for the filter housing, enhance its structural stability, avoid shaking and displacement, ensure a smooth and orderly filtration process, and improve the reliability and filtration effect of the device.

[0024] Furthermore, the ring-shaped buckle design allows the filter cloth to be easily and securely installed on both sides of the filter housing. The installation and disassembly operations are simple, facilitating the replacement and cleaning of the filter cloth. At the same time, it ensures that the filter cloth fits tightly with the filter housing, improving the filtration effect and ensuring the efficient and stable operation of the sludge dynamic filtration device.

[0025] Furthermore, during rotation, the liquid permeates into the filter housing and is then pumped out by an internal pump, achieving sludge dewatering and filtration. The free permeation of the liquid reduces the energy consumption generated by promoting sludge dewatering. Quick couplings facilitate the rapid disassembly and assembly of branch pumping pipes and the main pumping pipe, which is beneficial for maintenance. The pipe valves can independently control the water flow of each branch pumping pipe.

[0026] Furthermore, by setting up a spiral discharge device connected to a discharge motor, the sludge deposited at the bottom can be discharged efficiently and stably with the help of the motor. The discharge outlet ensures that the sludge is discharged smoothly from the device, avoiding accumulation, ensuring the continuous and stable operation of the device, and improving the efficiency and quality of sludge treatment.

[0027] Furthermore, porous media can further filter the discharged sludge, reduce residual moisture, and improve sludge treatment quality; at the same time, it can block some larger impurities, preventing blockage of subsequent pipelines.

[0028] Furthermore, the discharge valve can flexibly control the discharge process, opening or closing according to actual needs, adjusting the discharge speed and flow rate, ensuring the stability and controllability of the device operation, and improving the overall dynamic sludge filtration effect. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a dynamic sludge filtration device according to the present invention;

[0030] Figure 2 This is a cross-sectional view of a dynamic sludge filtration device according to the present invention;

[0031] Figure 3 This is a schematic diagram of the rotating pumping component structure of a sludge dynamic filtration device according to the present invention.

[0032] In the diagram: 1. Rotating motor; 2. Housing; 3. Filter cloth; 4. Chain; 5. Filter housing; 6. Support beam; 7. Discharge motor; 8. Main pumping pipe; 9. Pump; 10. Pipe valve; 11. Quick connector; 12. Branch pumping pipe; 13. Porous media; 14. Spiral discharge device; 15. Discharge valve; 16. Support rod; 17. Rotating rod; 18. Ring buckle; 19. Rotary joint; 20. Pumping head; 21. Filter pumping pipe; 22. Equidistant boss. Detailed Implementation

[0033] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] 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.

[0039] This utility model provides a dynamic sludge filtration device, including a housing 2, a rotating motor 1, a discharge motor 7, a filtration unit, a filtration pumping pipe 21, a discharge unit, and a pumping unit; the filtration unit includes a filter housing 5, a support beam 6, an annular buckle 18, a filter cloth 3, a rotating pumping assembly, a support rod 16, and a rotating rod 17; the rotating pumping assembly includes a rotating joint 19 and a pumping head 20; the pumping unit includes a main pumping pipe 8, a pumping pump 9, branch pumping pipes 12, a quick connector 11, and a pipe valve 10; the discharge unit includes a spiral discharge device 14, a discharge outlet, a porous medium 13, and a discharge valve 15;

[0040] See Figure 1 The filter unit and the discharge unit are connected to the outside of the box 2 by a rotating motor 1 and a discharge motor 7 respectively. The filter unit and the discharge unit are located inside the box 2. A water pumping unit is set on the top of the box 2. The water pumping unit is connected to the filter water pumping pipe 21. The discharge unit is located at the bottom of the filter unit and the water pumping unit.

[0041] See Figure 1 and Figure 2 Several filter housings 5 ​​are sequentially arranged through a filter pumping pipe 21. Each filter housing 5 has a filter cloth 3 on both sides. A ring-shaped buckle 18 is located at the top of each filter housing 5, and the filter cloth 3 is secured to both sides of the filter housing 5 via the ring-shaped buckle 18. The filter cloth 3 is located on the outside of the filter housing 5. A rotating pumping assembly is installed on the filter pumping pipe 21 inside the filter housing 5. The rotating pumping assembly includes a rotating joint 19 installed on the filter pumping pipe 21 inside the filter housing 5. The filter pumping pipe 21 is connected to a pumping head 20 via the rotating joint 19. The water head 20 is located inside the filter housing 5. The water head 20 does not rotate and always remains vertically downward to fully contact the liquid that has penetrated in and extract it. A support rod 16 is installed on one side of the filter housing 5, and a rotating rod 17 is installed on the other side of the filter housing 5. The rotating motor 1 is connected to the rotating rod 17 for driving the filter housing 5 to rotate through the rotating rod 17. The filter housing 5 drives the support rod 16 to rotate. Support beams 6 are also provided on both sides of the filter housing 5. The two support beams 6 are installed on the filter water pumping pipe 21 and are fixed to the inside of the box 2 through the filter water pumping pipe 21.

[0042] Preferably, the rotating motor 1 drives the rotating rod 17 to rotate via the chain 4. Chain drive is a common mechanical transmission method. The chain connects the driving sprocket (driving gear) of the rotating motor 1 and the driven sprocket (driven gear) of the rotating rod 17 to transmit motion and power. When the rotating motor 1 drives the driving sprocket to rotate as a power source, the teeth on the sprocket push the chain forward, thereby driving the driven sprocket and the rotating rod connected to it to rotate. Chain drive has the characteristics of accurate transmission ratio, high efficiency, strong load-bearing capacity and suitability for long-distance transmission, so it is widely used in various machines.

[0043] Preferably, the support rod 16 is a smooth rod, and the surface of the rotating rod 17 is relatively rough. Both the support rod 16 and the rotating rod 17 are provided with several pairs of equidistant bosses 22. The distance between each pair of equidistant bosses 22 is adapted to the thickness of the filter housing 5. The support rod 16 and the rotating rod 17 jointly restrict the position of the filter housing 5 through the equidistant bosses 22, and the filter housing 5 is in close contact with the support rod 16 and the rotating rod 17.

[0044] Preferably, the two sides of the surface of the filter housing 5 are circular, and the filter water pumping pipe 21 is arranged through the center of the filter housing 5.

[0045] Preferably, a plurality of filter holes are provided on both sides of the surface of the filter housing 5.

[0046] See Figure 1 A water pump 9 is installed at one end of the main water pumping pipe 8. The main water pumping pipe 8 is connected to the filter water pumping pipe 21 through several branch water pumping pipes 12. Each branch water pumping pipe 12 is connected to the main water pumping pipe 8 through a quick connector 11. Each branch water pumping pipe 12 is also equipped with a pipe valve 10, which is located on the top of the quick connector 11. One end of the spiral discharge device 14 is connected to the discharge motor 7 for transmission. The other end of the spiral discharge device 14 is equipped with a discharge outlet. A porous medium 13 is provided at the discharge outlet, and a discharge valve 15 is also provided at the discharge outlet.

[0047] The structure and working principle of this utility model will be further explained below:

[0048] The purpose of this utility model is to provide a dynamic sludge filtration device. The filter housing 5 uses a ring-shaped buckle 18 to secure the filter cloth 3 to the filter housing 5. The filter housing 5 is placed on a support beam 6, and multiple filter housings 5 ​​work together to filter sludge. Each filter housing 5 is relatively independent, and its respective branch water pumping pipe 12 is connected to the main water pumping pipe 8 via a quick connector 11. A pipe valve 10 controls the connection between each branch water pumping pipe 12 and the main water pumping pipe 8, and a water pump 9 extracts the liquid from each filter housing 5. The housing 2 contains two straight rods, one of which is a support rod 16 (smooth) and the other is a rotating rod 17 (rougher surface). Both the support rod 16 and the rotating rod 17 are equipped with... Equidistant bosses 22, support rods 16 and rotating rods 17 jointly restrict the position of filter housing 5 through equidistant bosses 22, and filter housing 5 is in close contact with support rods 16 and rotating rods 17; rotating motor 1 drives rotating rod 17 to rotate through chain 4, and rotating rod 17 drives filter housing 5 to rotate through surface friction; discharge motor 7 is installed at the bottom of housing 2, and discharge motor 7 drives spiral discharge device 14 to work. Porous medium 13 is installed at discharge outlet (sludge outlet) to further filter sludge. Discharge valve 15 is also installed at sludge outlet to control sludge discharge; there is a rotary joint 19 inside filter housing 5 connected to water pump head 20. When filter housing 5 rotates, water pump head 20 is always vertically downward to fully contact the liquid that has penetrated in and extract it.

[0049] In operation, this utility model discloses a dynamic sludge filtration device. Each filtration unit is immersed in sludge and placed above a support rod 16 and a rotating rod 17. The branch water pumping pipes 12 of each filter housing 5 are connected to the main water pumping pipe 8 via quick connectors 11. Simultaneously, each pipe valve 10 is opened to ensure communication between the branch water pumping pipes 12 and the main water pumping pipe 8. A rotating motor 1 drives the rotating rod 17 to rotate, and the rotating rod 17, through surface friction, drives each filter housing 5 to rotate. Liquid in the sludge permeates through the filter cloth 3 and enters the hollow cavity of the filter housing 5. A water pump 9 extracts the liquid from the hollow cavity of each filter housing 5. Sludge deposited below the filtration device is compressed to the discharge outlet by a screw discharge device 14 driven by a discharge motor 7. The compression increases the pressure at the discharge outlet, further filtering the deposited sludge through a porous medium 13. The compressed sludge is then discharged from the filtration device by opening the discharge valve 15.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A sludge dynamic filtration device, characterized in that, Includes a housing (2), and the outside of the housing (2) is connected to a filter unit and a discharge unit via a rotating motor (1) and a discharge motor (7), respectively. The filter unit and the discharge unit are located inside the housing (2). A water pumping unit is provided on the top of the housing (2). The water pumping unit is connected to the water pumping unit via a filter water pumping pipe (21). The discharge unit is located at the bottom of the filter unit and the water pumping unit. The filter unit includes several filter housings (5) arranged sequentially through the filter pumping pipe (21). Each filter housing (5) has a filter cloth (3) on both sides. The filter cloth (3) is located outside the filter housing (5). A rotating pumping assembly is installed on the filter pumping pipe (21) inside the filter housing (5). A support rod (16) is installed on one side of the filter housing (5), and a rotating rod (17) is installed on the other side of the filter housing (5). A rotating motor (1) is connected to the rotating rod (17) for driving the filter housing (5) to rotate through the rotating rod (17). The filter housing (5) drives the support rod (16) to rotate.

2. The sludge dynamic filtration device according to claim 1, characterized in that, The rotating pumping assembly includes a rotating joint (19) installed on a filter pumping pipe (21) located inside the filter housing (5). The filter pumping pipe (21) is connected to a pumping head (20) via the rotating joint (19). The pumping head (20) is located inside the filter housing (5).

3. The sludge dynamic filtration device according to claim 1, characterized in that, The surface of the support rod (16) is smooth, while the surface of the rotating rod (17) is rough.

4. The sludge dynamic filtration device according to claim 1, characterized in that, The surfaces of the support rod (16) and the rotating rod (17) are provided with a number of pairs of equidistant bosses (22), the distance between each pair of equidistant bosses (22) is adapted to the thickness of the filter housing (5), and is used to limit the position of the filter housing (5).

5. The sludge dynamic filtration device according to claim 1, wherein The filter housing (5) is provided with support beams (6) on both sides. The two support beams (6) are installed on the filter water pumping pipe (21) and the support beams (6) are fixed to the inside of the box (2) through the filter water pumping pipe (21).

6. The sludge dynamic filtration device according to claim 1, wherein The top of the filter housing (5) is provided with an annular buckle (18), and the filter cloth (3) is provided on both sides of the filter housing (5) through the annular buckle (18).

7. The sludge dynamic filtration device according to claim 1, wherein The pumping unit includes a main pumping pipe (8), one end of which is equipped with a pumping pump (9). The main pumping pipe (8) is connected to the filter pumping pipe (21) through several branch pumping pipes (12). Each branch pumping pipe (12) is connected to the main pumping pipe (8) through a quick connector (11). Each branch pumping pipe (12) is also equipped with a pipe valve (10), which is located on top of the quick connector (11).

8. The sludge dynamic filtration device according to claim 1, characterized in that, The discharge unit includes a spiral discharge device (14) that is connected to the discharge motor (7) at one end, and a discharge outlet is provided at the other end of the spiral discharge device (14).

9. A dynamic sludge filtration device according to claim 8, characterized in that, A porous medium (13) is provided at the discharge outlet.

10. A dynamic sludge filtration device according to claim 8, characterized in that, A discharge valve (15) is also provided at the discharge outlet.

Images