Rotary sludge dewatering device

Abstract

The utility model discloses a rotary sludge dewatering device which comprises a device main body, a filter cartridge is arranged in the device main body, a variable-diameter variable-pitch spiral auger is rotatably arranged in the device main body, and the variable-diameter variable-pitch spiral auger is positioned in the filter cartridge and can be matched with the filter cartridge; a filtering mechanism is arranged in the device main body, the filtering mechanism comprises a filtering assembly and a vibration mechanism, the vibration mechanism comprises a guide rod and a first motor, and the filtering assembly comprises a frame and a filtering plate. According to the utility model, the frame and the filter plate are mounted, so that sewage which is preliminarily dehydrated by the filter cartridge can be finely filtered, small particles and suspended matters are further removed, the effluent quality is improved, the first motor drives the vibration mechanism to work, the frame can vibrate in a reciprocating manner, and the vibration is transmitted to the sewage through the filter plate; the filter plate is prevented from being blocked, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge dewatering devices, in particular to a rotary sludge dewatering device. Background Art

[0002] With the continuous development of society, environmental protection has become an issue that people pay more and more attention to. In the process of protecting the environment, sewage needs to be treated so that the sewage can meet the discharge requirements and reduce pollution to the surrounding environment. Sludge dewatering device is one of the indispensable equipment in the sewage treatment process. Its main function is to remove moisture from the flowing primary, concentrated or digested sludge and convert it into semi-solid or solid mud blocks for subsequent storage, transportation, treatment and disposal.

[0003] Nowadays, after the sludge dewatering device completes the dehydration work of the sludge, a small amount of sludge often remains in the separated sewage. The residual sludge will increase the difficulty and cost of subsequent sewage treatment, and may even fail to meet the water quality requirements of subsequent treatment. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary sludge dewatering device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A rotary sludge dewatering device comprises a device body, a filter cartridge is fixedly provided inside the device body, a variable diameter and variable pitch spiral auger is rotatably provided inside the device body, the variable diameter and variable pitch spiral auger is located inside the filter cartridge and can cooperate therewith, a filtering mechanism for further filtering the sewage generated after sludge dewatering is provided inside the device body, the filtering mechanism comprises a filter assembly and a vibration mechanism for driving the filter assembly to vibrate, the vibration mechanism comprises a guide rod and a first motor, the filter assembly comprises a frame and a filter plate, the frame is located below the filter cartridge, and the filter plate is embedded and installed inside the frame.

[0007] Preferably, a driving motor is provided on the main body of the device, and an output end of the driving motor is externally fixedly connected to one end of the variable diameter and variable pitch spiral auger.

[0008] Preferably, the device body is respectively provided with a feed port, a slag discharge port and a sewage discharge port, a collecting bin is provided inside the device body, and the collecting bin is located below the frame, a sewage discharge pipe is installed at the bottom of the collecting bin, and one end of the sewage discharge pipe is connected to the sewage discharge port.

[0009] Preferably, the internal limiting activities of the device body are provided with multiple sets of guide rods, and one end of the guide rod is fixedly connected to both sides of the frame, an auxiliary spring is arranged around the outside of the guide rod, and the two ends of the auxiliary spring are respectively connected to the outside of the frame and the inner wall of the device body.

[0010] Preferably, mounting parts are provided on both sides of the frame, and a connecting rod is movably provided on the upper limit of the mounting parts. Multiple groups of first motors are fixedly provided inside the device body, and a cam is fixedly provided at the output end of the first motor, and one end of the connecting rod is movably connected to the cam through a connecting part.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model is equipped with a frame and a filter plate, which can finely filter the sewage after the initial dehydration by the filter cartridge, further remove tiny particles and suspended matter, and improve the water quality of the effluent. As the first motor drives the vibration mechanism to work, the frame can vibrate back and forth. This vibration is transmitted to the sewage through the filter plate, which helps to prevent the filter plate from being blocked and improve the filtration efficiency. The further filtered sewage falls into the collection bin and is discharged outward, while the dehydrated sludge forms a filter cake on the filter plate, which can be cleaned regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the filter cartridge structure of the present utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the variable diameter and variable pitch spiral auger of the present utility model;

[0016] Figure 4 This is a schematic diagram of the framework structure of the present utility model.

[0017] In the figure: 1. Device body; 2. Drive motor; 3. Feed port; 4. Sewage outlet; 5. Collection bin; 6. Sewage pipe; 7. Slag outlet; 8. Filter cartridge; 9. Variable diameter and variable pitch spiral auger; 10. Frame; 11. Filter plate; 12. Guide rod; 13. Auxiliary spring; 14. Mounting part; 15. Connecting rod; 16. First motor; 17. Cam. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1-4 , a rotary sludge dewatering device, including, a device body 1, a filter cartridge 8 is fixedly provided inside the device body 1, a variable diameter and variable pitch spiral auger 9 is rotatably provided inside the device body 1, the variable diameter and variable pitch spiral auger 9 is located inside the filter cartridge 8 and can cooperate therewith, the interior of the device body 1 is provided with a filtering mechanism for further filtering the sewage generated after sludge dewatering, the filtering mechanism includes a filtering assembly and a vibration mechanism for driving the filtering assembly to vibrate, the vibration mechanism includes a guide rod 12 and a first motor 16, the filtering assembly includes a frame 10 and a filter plate 11, the frame 10 is located below the filter cartridge 8, the filter plate 11 is embedded and installed inside the frame 10, the device body 1 is the outer shell and supporting structure of the entire sludge dewatering device, and other working parts are accommodated and fixed inside, the filter cartridge 8 is the main component for preliminary dehydration, and the filter cartridge 8 is the main component for preliminary dehydration through its porous structure. The structure allows water to pass through while intercepting solid particles in the sludge. The variable diameter and variable pitch spiral auger 9 pushes the sludge from one end of the filter cartridge 8 to the other end through rotation. In the process, the variable diameter and variable pitch design is used to increase the squeezing effect on the sludge, promote the separation of water from the sludge and discharge through the filter cartridge 8. Through the installation of the frame 10 and the filter plate 11, the sewage after the preliminary dehydration by the filter cartridge 8 can be finely filtered, and small particles and suspended matter can be further removed to improve the effluent water quality. As the first motor 16 drives the vibration mechanism to work, the frame 10 can be vibrated reciprocatingly. This vibration is transmitted to the sewage through the filter plate 11, which helps to prevent the filter plate 11 from being blocked and improve the filtration efficiency. The further filtered sewage falls into the collection bin 5 and is discharged outward, while the dehydrated sludge forms a filter cake on the filter plate 11, which can be cleaned regularly.

[0020] See also Figure 1 and Figure 2The hopper 10 is provided with a filter 2, and the filter 2 is provided with a filter 3. The filter 3 has two ends, one of which is the filter 3 and the other is the filter 3. The filter 3 has two ends, one of which is the filter 3. The filter 3 has two ends, one of which is the filter 3. The filter 3 has two ends, one of which is the filter 3.

[0021] See also Figure 3 and Figure 4 , the internal limit movement of the device body 1 is provided with multiple groups of guide rods 12, and one end of the guide rod 12 is fixedly connected to both sides of the frame 10, an auxiliary spring 13 is arranged around the outside of the guide rod 12, and the two ends of the auxiliary spring 13 are respectively connected to the outside of the frame 10 and the inner wall of the device body 1, and mounting parts 14 are provided on both sides of the frame 10, and the upper limit movement of the mounting parts 14 is provided with a connecting rod 15. Multiple groups of first motors 16 are fixedly provided inside the device body 1, and a cam 17 is fixedly provided at the output end of the first motor 16, and one end of the connecting rod 15 is movably connected to the cam 17 through a connecting part. Multiple groups of guide rods 12 provide stability for the frame 10 The guide and support of the filter plate 11 ensure that the filter plate 11 can move along a predetermined trajectory during the vibration process to avoid deviation or shaking. When the first motor 16 is started, its output end drives the cam 17 to rotate. Since the contour shape of the cam 17 is variable, when one end of the connecting rod 15 contacts the cam 17, it will be subjected to thrust or pull in different directions, thereby driving the frame 10 to vibrate back and forth along the direction of the guide rod 12. This vibration is transmitted to the sewage through the filter plate 11, which helps to prevent the filter plate 11 from being blocked and improve the filtration efficiency. At the same time, the auxiliary spring 13 plays a role of shock absorption and reset during the vibration process, ensuring that the frame 10 can move stably and reset quickly.

[0022] Working principle: the main body 1 of the device is the shell and supporting structure of the entire sludge dewatering device, and other working parts are accommodated and fixed inside. The filter cartridge 8 is the main component for preliminary dehydration. Its porous structure allows water to pass through, while intercepting solid particles in the sludge. The variable diameter and variable pitch spiral auger 9 pushes the sludge from one end of the filter cartridge 8 to the other end through rotation. In the process, the variable diameter and variable pitch design is used to increase the squeezing effect on the sludge, promote the separation of water from the sludge and discharge it through the filter cartridge 8. Through the installation of the frame 10 and the filter plate 11, the sludge after preliminary dehydration by the filter cartridge 8 can be The water is finely filtered to further remove tiny particles and suspended solids and improve the water quality. As the first motor 16 drives the vibration mechanism to work, the frame 10 can vibrate back and forth. This vibration is transmitted to the sewage through the filter plate 11, which helps to prevent the filter plate 11 from being blocked and improve the filtration efficiency. The further filtered sewage falls into the collection bin 5 and is discharged outward, while the dehydrated sludge forms a filter cake on the filter plate 11, which can be cleaned regularly. The drive motor 2 provides power for the variable diameter and variable pitch spiral auger 9, and its output end is fixedly connected to one end of the spiral auger. By rotating The spiral auger is driven to move in the filter cartridge 8. The feed port 3 is used to allow the sludge to be treated to enter the device and start dehydration as the variable diameter and variable pitch spiral auger 9 operates. The slag discharge port 7 is set on the device body 1, located at the slag discharge end of the spiral auger, allowing the sludge after dehydration to be discharged from the device for subsequent treatment or disposal. The sewage after secondary filtration by the filter plate 11 will fall into the collection bin 5 and be discharged from the device through the sewage pipe 6 and the sewage outlet 4. Multiple sets of guide rods 12 provide stable guidance and support for the frame 10 and ensure that it can move along the predetermined track during the vibration process. When the first motor 16 is started, its output end drives the cam 17 to rotate. Since the profile shape of the cam 17 is variable, when one end of the connecting rod 15 contacts the cam 17, it will be subjected to thrust or pull in different directions, thereby driving the frame 10 to vibrate back and forth along the direction of the guide rod 12. This vibration is transmitted to the sewage through the filter plate 11, which helps to prevent the filter plate 11 from being blocked and improve the filtration efficiency. At the same time, the auxiliary spring 13 plays a role in shock absorption and reset during the vibration process, ensuring that the frame 10 can move stably and reset quickly.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A rotary sludge dewatering device, comprising a device body (1), a filter cartridge (8) fixedly disposed inside the device body (1), a variable diameter and variable pitch spiral auger (9) rotatably disposed inside the device body (1), the variable diameter and variable pitch spiral auger (9) being located inside the filter cartridge (8) and capable of cooperating therewith, characterized in that: A filtering mechanism for further filtering sewage generated after sludge dehydration is provided inside the device body (1), the filtering mechanism comprising a filtering assembly and a vibration mechanism for driving the filtering assembly to vibrate, the vibration mechanism comprising a guide rod (12) and a first motor (16), the filtering assembly comprising a frame (10) and a filter plate (11), the frame (10) being located below the filter cartridge (8), and the filter plate (11) being embedded and installed inside the frame (10).

2. A rotary sludge dewatering device according to claim 1, characterized in that: A driving motor (2) is provided on the device body (1), and the output end of the driving motor (2) is externally fixedly connected to one end of a variable diameter and variable pitch spiral auger (9).

3. The rotary sludge dewatering device according to claim 1, characterized in that: The device body (1) is respectively provided with a feed port (3), a slag discharge port (7) and a sewage discharge port (4); a collecting bin (5) is provided inside the device body (1), and the collecting bin (5) is located below the frame (10); a sewage discharge pipe (6) is installed at the bottom of the collecting bin (5), and one end of the sewage discharge pipe (6) is connected to the sewage discharge port (4).

4. The rotary sludge dewatering device according to claim 1, characterized in that: The internal limiting movement of the device body (1) is provided with a plurality of guide rods (12), and one end of the guide rod (12) is fixedly connected to both sides of the frame (10); an auxiliary spring (13) is provided around the outside of the guide rod (12), and the two ends of the auxiliary spring (13) are respectively connected to the outside of the frame (10) and the inner wall of the device body (1).

5. The rotary sludge dewatering device according to claim 4, characterized in that: Both sides of the frame (10) are provided with mounting members (14), and the mounting members (14) are movably provided with connecting rods (15) at upper limit positions. A plurality of first motors (16) are fixedly provided inside the device body (1), and a cam (17) is fixedly provided at the output end of the first motor (16), and one end of the connecting rod (15) is movably connected to the cam (17) through a connecting member.

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