Sludge dewatering device

Abstract

The present application relates to the technical fields of sludge dewatering, and discloses a sludge dewatering device, which comprises a filter box frame, a pressing plate and a hydraulic cylinder, the filter box frame is divided into a dewatering area and a feeding area, filter plates are arranged on the inner bottom surface of the filter box frame at positions corresponding to the dewatering area and the feeding area, frame bodies are arranged in the dewatering area and the feeding area, the frame bodies are detachably connected with the filter box frame, a driving assembly is arranged at one end of the filter box frame, a plurality of frame bodies are drivingly connected with the driving assembly, a discharge port is arranged on the side of the filter box frame close to the dewatering area, and the driving assembly is used to drive the frame bodies to move to the side of the discharge port. The present application is used to solve the problems in the prior art that the sludge is easy to slide off from the discharge slot plate when being filled, and the filled sludge is difficult to be laid flat, thereby affecting the sludge dewatering efficiency.

Description

Technical Field

[0001] This invention relates to the field of sludge dewatering technology, and more particularly to a sludge dewatering device. Background Technology

[0002] Sludge dewatering removes moisture from sludge, transforming it into semi-solid or solid sludge blocks. This improves sludge stability, reduces odor and putrefaction, and facilitates subsequent utilization or disposal.

[0003] Traditional sludge dewatering devices mainly consist of a filter screen box, a pressure plate, and a hydraulic cylinder. The sludge inside the filter screen box is dewatered by the pressure plate, but the dewatered sludge is difficult to remove.

[0004] In the prior art, such as the environmental pollution sludge dewatering device disclosed in Chinese Patent [Publication No.: CN220520340U], a housing, a hydraulic cylinder, the output end of which passes through a mounting plate and is connected to a pressure plate; an electric telescopic component, the output end of which is provided with a push plate; a filter press assembly, fixedly installed in the housing, the upper surface of which is flush with the opening of the housing; the filter press assembly includes a fixed body, the upper surface of which is uniformly provided with multiple cylindrical cavities; a supporting cylinder, slidably installed in the cylindrical cavities; a filter plate, fixed to the upper end of the supporting cylinder, the filter plate being uniformly arrayed with filter pressing holes; and a return spring, sleeved on the supporting cylinder, the two ends of which are fixedly connected to the upper surface of the fixed body and the lower surface of the filter plate, respectively. By setting the return spring, the filter plate lifts the dewatered sludge, and then, with the cooperation of the push plate, the dewatered sludge is removed.

[0005] However, when sludge is loaded, it is easy for it to slip off the discharge trough plate, and the loaded sludge is difficult to spread evenly, which affects the sludge dewatering efficiency. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a sludge dewatering device that solves the problems in the prior art where sludge easily slips off the discharge trough plate during filling and the filled sludge is difficult to spread evenly, thus affecting the sludge dewatering efficiency.

[0007] The present invention solves the above-mentioned technical problems through the following technical means: A sludge dewatering device includes a filter box frame, a pressure plate, and a hydraulic cylinder. The filter box frame is divided into a dewatering zone and a feeding zone. Filter plates are installed on the inner bottom surface of the filter box frame at positions corresponding to the dewatering zone and the feeding zone. Frames are installed in both the dewatering zone and the feeding zone. The frames are detachably connected to the filter box frame. A drive assembly is installed at one end of the filter box frame. Multiple frames are driven by the drive assembly. A discharge port is provided on the side of the filter box frame near the dewatering zone. The drive assembly is used to drive the frames to move towards the discharge port.

[0008] By designing the above structure, sludge can be loaded into the frame in the feeding area during sludge filling, effectively preventing sludge from slipping off easily. Furthermore, because the feeding area and dewatering area are separated, the sludge can be spread evenly during loading, improving the dewatering effect. When unloading dewatered sludge, the drive assembly pushes the frame in the feeding area into the dewatering area, while the frame in the dewatering area is simultaneously pushed from the discharge port to the outside of the filter box frame for unloading, effectively accelerating the feeding and unloading speed and improving sludge dewatering efficiency.

[0009] Furthermore, the filter box frame is provided with a sliding groove, and the frame is slidably locked in the sliding groove. One end of the sliding groove is connected to the discharge port, and the frame can be detached from the filter box frame from the discharge port. The filter box frame is provided with a slot above the feeding area, and the slot is connected to the sliding groove, so that the frame can enter the filter box frame from the slot.

[0010] By setting the above structure, the frame and filter box frame can be detachably connected, and the stability of the frame during movement can be guaranteed. The structure is simple and the maintenance cost is low.

[0011] Furthermore, multiple sets of cleaning components are slidably arranged at the bottom of the filter box frame. The cleaning components are used to clean the filter plates. A cleaning chamber is provided between adjacent frames, and the positions of the cleaning components correspond to the positions of the cleaning chambers.

[0012] By setting up the above structure, the cleaning component can effectively reduce the accumulation of sludge in the filter holes of the filter plate after cleaning the filter plate, and further improve the dewatering efficiency.

[0013] Furthermore, the cleaning assembly includes cleaning components and connecting components. A support rod is provided at the bottom of the filter box frame. The cleaning components are slidably mounted on the support rod. Multiple cleaning components are fixedly connected to the connecting components. The connecting components are connected to the drive assembly for transmission. When the drive assembly is working, the drive frame and the cleaning assembly move synchronously.

[0014] By setting the above structure, the cleaning component can be slidably installed at the bottom of the filter box frame, and when the drive component is working, the drive frame and the cleaning component move synchronously, without the need to manually move the cleaning component or set a separate drive for the cleaning component.

[0015] Furthermore, the cleaning component has several air vents, and a cavity is formed inside the cleaning component. The air vents are connected to the cavity, and a connection hole is formed at the bottom of the cavity. A positive pressure air source is provided on one side of the filter box frame, and the connection hole is connected to the positive pressure air source.

[0016] By setting up the above structure, the sludge accumulated in the filter plate is blown out by positive pressure jet, which prevents the sludge from accumulating in the filter holes of the filter plate, and the blown-out sludge falls back into the filter box frame, which can prevent it from falling randomly.

[0017] Furthermore, the connector has a channel that communicates with the connection hole, and the connector has an air source interface that communicates with a positive pressure air source.

[0018] By setting up the above structure, there is no need to connect pipes between each connection hole and the positive pressure air source, which effectively simplifies the structure of the cleaning component.

[0019] Furthermore, the driving assembly includes a driving cylinder, and an mounting plate is provided on the side of the filter box frame near the feeding area. The driving cylinder is fixedly mounted on the mounting plate, and the output shaft of the driving cylinder is connected to a driving rod. The driving rod passes through the filter box frame and abuts against the frame body, and adjacent frames abut against each other.

[0020] By setting up the above structure, the frame and cleaning components can be moved towards the discharge port by driving the cylinder.

[0021] Furthermore, a temporary storage area is provided between the dehydration zone and the feeding zone.

[0022] By setting up the above structure, undehydrated sludge can be temporarily stored, avoiding the situation where sludge is not loaded in time, which would affect the sludge dewatering efficiency.

[0023] Furthermore, a water tank is provided at the bottom of the filter box frame, which is used to hold sewage.

[0024] By setting up the above structure, sewage can be collected for subsequent treatment.

[0025] Furthermore, a support crossbar is provided at the bottom of the filter box frame between adjacent filter plates.

[0026] By setting up the above structure, the strength of the filter frame is increased to ensure that it can withstand the pressure of the pressure plate.

[0027] The beneficial effects of this invention are: 1. This invention, by setting up a filter box frame, a frame, and a drive assembly, allows sludge to be filled into the frame in the feeding area during sludge loading, effectively preventing sludge from slipping off easily. Furthermore, because the feeding area and dewatering area are separated, the sludge can be spread evenly during loading, improving the dewatering effect. When unloading dewatered sludge, the drive assembly pushes the frame in the feeding area into the dewatering area, while the frame in the dewatering area is simultaneously pushed from the discharge port to the outside of the filter box frame for unloading, effectively accelerating the feeding and unloading speed and improving sludge dewatering efficiency.

[0028] 2. By setting up a cleaning component, the present invention can effectively reduce the accumulation of sludge in the filter holes of the filter plate after the cleaning component cleans the filter plate, thereby further improving the dewatering efficiency.

[0029] 3. By connecting the connector to the drive assembly, the drive frame and the cleaning assembly move synchronously when the drive assembly is working, eliminating the need to manually move the cleaning assembly or set up a separate driver for the cleaning assembly.

[0030] 4. This invention uses a positive pressure air source and an air outlet to blow out the sludge accumulated in the filter plate by positive pressure jetting, which prevents the sludge from accumulating in the filter holes of the filter plate. The blown-out sludge falls back into the filter box frame, which can prevent it from scattering randomly. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a sludge dewatering device according to the present invention; Figure 2 This is a cross-sectional structural schematic diagram of a sludge dewatering device according to the present invention; Figure 3 This is a schematic diagram of the disassembled structure of a sludge dewatering device according to the present invention; Figure 4 This is a cross-sectional structural diagram of the cleaning component in a sludge dewatering device of the present invention; in, 1. Filter box frame; 11. Filter plate; 12. Discharge port; 13. Slide chute; 14. Groove opening; 15. Support rod; 16. Mounting plate; 17. Water tank; 18. Support crossbar; 21. Pressure plate; 22. Hydraulic cylinder; 23. Mounting bracket; 31. Dehydration area; 32. Feeding area; 33. Temporary storage area; 4. Frame; 41. Cleaning chamber; 5. Drive assembly; 51. Drive cylinder; 52. Drive rod; 6. Cleaning assembly; 61. Cleaning component; 611. Air outlet; 612. Cavity; 613. Connection hole; 62. Connector; 621. Channel; 622. Air source interface. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-4As shown, a sludge dewatering device of the present invention includes a filter box frame 1, a pressure plate 21, and a hydraulic cylinder 22. The hydraulic cylinder 22 is mounted on top of the filter box frame 1 via a mounting bracket 23, and the pressure plate 21 is fixedly connected to the output shaft of the hydraulic cylinder 22. The filter box frame 1 is divided into a dewatering zone 31 and a feeding zone 32. Filter plates 11 are provided on the inner bottom surface of the filter box frame 1 at positions corresponding to the dewatering zone 31 and the feeding zone 32. Frames 4 are provided in both the dewatering zone 31 and the feeding zone 32. Frames 4 are detachably connected to the filter box frame 1. A drive assembly 5 is provided at one end of the filter box frame 1, and multiple frames 4 are connected to the drive assembly 5. A discharge port 12 is provided on the side of the filter box frame 1 near the dewatering zone 31, and the drive assembly 5 is used to drive the frames 4 to move toward the discharge port 12.

[0034] When the drive component 5 is working, it pushes multiple frames 4 to move synchronously toward the discharge port 12. The drive component 5 pushes the frames 4 in the feeding area 32 into the dewatering area 31. At the same time, the frames 4 in the dewatering area 31 are pushed from the discharge port 12 to the outside of the filter box frame 1 for unloading. After unloading, the frames 4 are transported back to the feeding area 32, which effectively speeds up the feeding and unloading speed and improves the sludge dewatering efficiency.

[0035] When loading sludge, simply fill the sludge into the frame 4 of the feeding area 32, which effectively prevents the sludge from sliding off randomly. Furthermore, since the feeding area 32 and the dewatering area 31 are separate, the sludge can be spread evenly during loading, improving the dewatering effect.

[0036] In this embodiment, a sliding groove 13 is provided inside the filter box frame 1, and the frame 4 is slidably engaged in the sliding groove 13. One end of the sliding groove 13 is connected to the discharge port 12, and the frame 4 can be detached from the filter box frame 1 from the discharge port 12. A slot 14 is provided above the feeding area 32 of the filter box frame 1, and the slot 14 is connected to the sliding groove 13, allowing the frame 4 to enter the filter box frame 1 from the slot 14. This achieves a detachable connection between the frame 4 and the filter box frame 1, and ensures the stability of the frame 4 during movement. The structure is simple and the maintenance cost is low. In some other embodiments, a sliding rod can also be provided on the filter box frame 1, and the frame 4 can be slidably connected to the sliding rod, but this is more troublesome when installing the filter box frame 1.

[0037] In this embodiment, multiple sets of cleaning components 6 are slidably arranged at the bottom of the filter box frame 1. The cleaning components 6 are used to clean the filter plates 11. A cleaning chamber 41 is provided between adjacent frames 4, and the positions of the cleaning components 6 correspond to the positions of the cleaning chambers 41. The cleaning chambers 41 provide cleaning space for the cleaning components 6, preventing the filter plates 11 from being blocked by sludge inside the frames 4 during cleaning. It should be noted that since there is no frame behind the frame 4 near the drive component 5, the cleaning components corresponding to that frame 4 can be directly set behind that frame 4. After the cleaning components 6 clean the filter plates 11, they can effectively reduce the accumulation of sludge in the filter holes of the filter plates 11, further improving the dewatering efficiency.

[0038] In this embodiment, the cleaning assembly 6 includes cleaning components 61 and connecting components 62. A support rod 15 is provided at the bottom of the filter box frame 1. The cleaning components 61 are slidably disposed on the support rod 15. Multiple cleaning components 61 are fixedly connected to the connecting components 62. The connecting components 62 are connected to the drive assembly 5 for transmission. When the drive assembly 5 is working, the drive frame 4 and the cleaning assembly 6 move synchronously. In some other embodiments, the movement of the cleaning components 61 can also be controlled by manual movement or by setting an independent drive.

[0039] In this embodiment, the cleaning component 61 has several air vents 611, and a cavity 612 is formed inside the cleaning component 61. The air vents 611 communicate with the cavity 612, and a connection hole 613 is formed at the bottom of the cavity 612. A positive pressure air source is provided on one side of the filter box frame 1, and the connection hole 613 communicates with the positive pressure air source. Positive pressure air jets are used to blow out the sludge accumulated in the filter plate 11, preventing sludge from accumulating in the filter holes of the filter plate 11. The blown-out sludge falls back into the filter box frame 1, preventing it from scattering randomly. In some other embodiments, water spraying from a nozzle can also be used for cleaning, but this is more wasteful of water resources.

[0040] In this embodiment, a channel 621 is provided inside the connector 62, which communicates with the connection hole 613. An air source interface 622 is provided on the connector 62, which is connected to a positive pressure air source through a flexible hose. This eliminates the need to connect pipes between each connection hole 613 and the positive pressure air source, effectively simplifying the structure of the cleaning assembly 6.

[0041] In this embodiment, the drive assembly 5 includes a drive cylinder 51. A mounting plate 16 is provided on the side of the filter box frame 1 near the feeding area 32. The drive cylinder 51 is fixedly mounted on the mounting plate 16. The output shaft of the drive cylinder 51 is connected to a drive rod 52. The drive rod 52 passes through the filter box frame 1 and abuts against the frame 4. Adjacent frames 4 abut against each other. When the drive cylinder 51 operates, it moves the frame 4 and the cleaning assembly 6 towards the discharge port 12. In some other embodiments, a motor and gears can also be used to drive the drive rod 52. This can effectively shorten the length of the drive assembly 5, but the control precision is lower; the appropriate method can be chosen based on actual needs.

[0042] In this embodiment, a temporary storage area 33 is provided between the dewatering zone 31 and the feeding zone 32 to temporarily store the sludge that has not been dewatered, so as to avoid the situation where the sludge is not loaded in time and affects the sludge dewatering efficiency.

[0043] In this embodiment, a water tank 17 is provided at the bottom of the filter box frame 1. The water tank 17 is used to hold sewage and collect the sewage for subsequent treatment.

[0044] In this embodiment, a support crossbar 18 is provided at the bottom of the filter box frame 1 between adjacent filter plates 11 to increase the strength of the filter frame and ensure that it can withstand the pressure of the pressure plate 21.

[0045] The working principle of this invention is as follows: First, sludge is filled into the frame 4 of both the feeding area 32 and the temporary storage area 33.

[0046] Subsequently, the drive cylinder 51 operates, and the drive rod 52 abuts against the frame 4 in the feeding area 32, pushing the frame 4 towards the discharge port 12. Simultaneously, due to the abutment of the frames 4 against each other, the frames 4 in the temporary storage area 33 and the dehydration area 31 move synchronously until the frames 4 in the temporary storage area 33 move to the dehydration area 31. During this process, the frames 4 in the feeding area 32 move to the temporary storage area 33, and the frames 4 in the dehydration area 31 are pushed from the discharge port 12 to the outside of the filter box frame 1 for unloading. After unloading, the frames 4 then enter the feeding area 32 of the filter box frame 1 from the slot 14.

[0047] Then, the hydraulic cylinder 22 is controlled to work, and the pressure plate 21 squeezes the sludge in the frame 4 of the dewatering zone 31 to dewater the sludge, and fills the frame 4 of the feeding zone 32 with sludge, and this cycle can be repeated.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A sludge dewatering device, comprising a filter box frame (1), a pressure plate (21), and a hydraulic cylinder (22), characterized in that, The filter box frame (1) is divided into a dehydration zone (31) and a feeding zone (32). Filter plates (11) are provided on the inner bottom surface of the filter box frame (1) at positions corresponding to the dehydration zone (31) and the feeding zone (32). Frames (4) are provided in both the dehydration zone (31) and the feeding zone (32). The frames (4) are detachably connected to the filter box frame (1). A drive assembly (5) is provided at one end of the filter box frame (1). Multiple frames (4) are connected to the drive assembly (5) in a transmission manner. A discharge port (12) is provided on the side of the filter box frame (1) near the dehydration zone (31). The drive assembly (5) is used to drive the frames (4) to move toward the discharge port (12). Multiple sets of cleaning components (6) are slidably arranged at the bottom of the filter box frame (1). The cleaning components (6) are used to clean the filter plate (11). A cleaning chamber (41) is provided between adjacent frames (4). The position of the cleaning components (6) corresponds to the position of the cleaning chamber (41). The cleaning assembly (6) includes a cleaning component (61) and a connecting component (62). A support rod (15) is provided at the bottom of the filter box frame (1). The cleaning component (61) is slidably disposed on the support rod (15). Multiple cleaning components (61) are fixedly connected to the connecting component (62). The connecting component (62) is connected to the drive assembly (5) for transmission. When the drive assembly (5) is working, the drive frame (4) and the cleaning assembly (6) move synchronously.

2. The sludge dewatering device according to claim 1, characterized in that, The filter box frame (1) has a sliding groove (13) inside, and the frame (4) is slidably locked in the sliding groove (13). One end of the sliding groove (13) is connected to the discharge port (12). The frame (4) can be separated from the filter box frame (1) from the discharge port (12). The filter box frame (1) has a slot (14) above the feeding area (32). The slot (14) is connected to the sliding groove (13). The frame (4) can enter the filter box frame (1) from the slot (14).

3. The sludge dewatering device according to claim 1, characterized in that, The cleaning component (61) has several air outlets (611), and a cavity (612) is provided inside the cleaning component (61). The air outlets (611) are connected to the cavity (612). A connection hole (613) is provided at the bottom of the cavity (612). A positive pressure air source is provided on one side of the filter box frame (1), and the connection hole (613) is connected to the positive pressure air source.

4. The sludge dewatering device according to claim 3, characterized in that, The connector (62) has a channel (621) inside, the channel (621) is connected to the connection hole (613), and the connector (62) is provided with an air source interface (622), the air source interface (622) is connected to a positive pressure air source.

5. A sludge dewatering device according to claim 3, characterized in that, The drive assembly (5) includes a drive cylinder (51). The filter box frame (1) is provided with a mounting plate (16) on the side near the feeding area (32). The drive cylinder (51) is fixedly mounted on the mounting plate (16). The output shaft of the drive cylinder (51) is connected to a drive rod (52). The drive rod (52) passes through the filter box frame (1) and abuts against the frame (4). Adjacent frames (4) abut against each other. The connector (62) is fixedly connected to the drive rod (52).

6. The sludge dewatering device according to claim 1, characterized in that, A temporary storage area (33) is provided between the dehydration zone (31) and the feeding zone (32).

7. The sludge dewatering device according to claim 1, characterized in that, The bottom of the filter box frame (1) is provided with a water tank (17), which is used to hold sewage.

8. The sludge dewatering device according to claim 1, characterized in that, The bottom of the filter box frame (1) is provided with a support crossbar (18) between adjacent filter plates (11).

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