A multi-stage biological sludge treatment device

Abstract

This utility model belongs to the technical field of sludge treatment devices, specifically a multi-stage biological sludge treatment device, including a mixing chamber, an isolation chamber, a first sedimentation chamber, a reaction tank, a second sedimentation chamber, an anaerobic tank, an aerobic tank, a disinfection tank, a clear water tank, a buffer tank, a filter press, and a screw conveyor. A stirring paddle is rotatably installed in the mixing chamber, a filter screen is fixedly installed in the isolation chamber, a biofilm is fixedly installed in the reaction tank, and a disinfection lamp is fixedly installed in the disinfection tank. A connecting pipe is fixedly connected between the buffer tank and the filter press. This utility model achieves the separation and treatment of wastewater and sludge through the coordinated action of the mixing chamber, isolation chamber, first sedimentation chamber, reaction tank, second sedimentation chamber, anaerobic tank, aerobic tank, disinfection tank, clear water tank, buffer tank, and filter press, avoiding secondary pollution problems caused by directly adding chemical agents, and improving treatment efficiency and effectiveness.

Description

Technical Field

[0001] This utility model belongs to the field of sludge treatment devices, specifically a multi-stage biological sludge treatment device. Background Technology

[0002] The sludge and wastewater treatment in the gelatin production process mainly targets the high-concentration organic wastewater and solid residue generated during collagen extraction. The core process is a combination of anaerobic reactor and aerobic activated sludge process. The organic matter is decomposed in the anaerobic section, and the remaining pollutants are degraded in the aerobic section, so that the treated products meet the discharge standards.

[0003] In existing technologies, sludge and wastewater generated during some gelatin production processes are generally treated by simple filtration through sedimentation, followed by the addition of chemicals. However, the treatment effect is limited, and the chemicals can easily cause secondary pollution. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage biological sludge treatment device that improves the efficiency and effectiveness of sludge and wastewater treatment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-stage biological sludge treatment device is provided, including a mixing chamber, an isolation chamber, a first sedimentation chamber, a reaction tank, a second sedimentation chamber, an anaerobic tank, an aerobic tank, a disinfection tank, a clear water tank, a buffer tank, a filter press, and a screw conveyor. A stirring paddle is rotatably installed in the mixing chamber, a filter grid is fixedly installed in the isolation chamber, a biofilm is fixedly installed in the reaction tank, a disinfection lamp is fixedly installed in the disinfection tank, and a connecting pipe is fixedly connected between the buffer tank and the filter press.

[0006] Optionally, a support plate is fixedly connected between the inner walls of the two sides of the mixing chamber near the opening, and a servo motor is fixedly connected to the upper end of the support plate. The output end of the servo motor is fixedly connected to the upper end of the mixing paddle.

[0007] Optionally, a pipe is fixedly connected between the mixing chamber and the isolation chamber, a pipe is fixedly connected between the first sedimentation chamber and the reaction tank, a pipe is fixedly connected between the second sedimentation chamber, the anaerobic tank, the aerobic tank, the disinfection tank and the clear water tank, and a pipe is fixedly connected between the lower ends of the mixing chamber, the first sedimentation chamber and the second sedimentation chamber and the screw conveyor.

[0008] Optionally, valves are fixedly connected to each of the pipes 1, 2, multiple pipes 3, and multiple pipes 4, and the pipes 1, 2, 3, and 4 are all made of stainless steel.

[0009] Optionally, a water pump is provided between the clear water tank and the screw conveyor. The water inlet of the water pump is fixedly connected to the bottom of the clear water tank through a pipe, and the water outlet of the water pump is fixedly connected to the front outer wall of the screw conveyor through a conduit.

[0010] Optionally, a sludge pump is provided between the isolation chamber and the first sedimentation chamber, with the inlet of the sludge pump located in the isolation chamber and the outlet of the sludge pump located in the first sedimentation chamber.

[0011] Optionally, a second sludge pump is provided between the reaction tank and the second sedimentation chamber, with the inlet of the second sludge pump located in the reaction tank and the outlet of the second sludge pump located in the second sedimentation chamber.

[0012] Optionally, a sludge pump three is provided between the first sedimentation chamber and the buffer tank. The inlet of the sludge pump three is connected to the buffer tank, and the outlet of the sludge pump three is located in the first sedimentation chamber.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model utilizes the combined action of a mixing chamber, an isolation chamber, a first sedimentation chamber, a reaction tank, a second sedimentation chamber, an anaerobic tank, an aerobic tank, a disinfection tank, a clear water tank, a buffer tank, and a filter press. Wastewater is treated by biofilm and ultraviolet sterilization in the reaction tank and disinfection tank, while sludge is sent to the filter press for treatment via a screw conveyor. Through multi-stage treatment, wastewater and sludge are separated, avoiding secondary pollution caused by the direct addition of chemical agents, and improving treatment efficiency and effectiveness.

[0015] 2. This utility model connects a water pump between the clear water tank and the screw conveyor. Subsequently, the water pump can be used to pump the clear water in the clear water tank into the screw conveyor to flush the inner wall of the device and the screw conveyor, keeping the device clean. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3This is a rear-view three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal front view structure of this utility model.

[0021] In the diagram: 1. Mixing chamber; 2. Isolation chamber; 3. First sedimentation chamber; 4. Reaction tank; 5. Second sedimentation chamber; 6. Anaerobic tank; 7. Aerobic tank; 8. Disinfection tank; 9. Clear water tank; 10. Buffer tank; 11. Agitator; 12. Filter screen; 13. Biofilm; 14. Disinfection lamp; 15. Sludge pump one; 16. Sludge pump two; 17. Connecting pipe; 18. Valve; 19. Sludge pump three; 20. Water pump; 21. Filter press; 22. Screw conveyor. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must be in a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] 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.

[0026] Reference Figure 1-4The present invention provides a multi-stage biological sludge treatment device. The multi-stage biological sludge treatment device includes a mixing chamber 1, an isolation chamber 2, a first sedimentation chamber 3, a reaction tank 4, a second sedimentation chamber 5, an anaerobic tank 6, an aerobic tank 7, a disinfection tank 8, a clear water tank 9, a buffer tank 10, a filter press 21, and a screw conveyor 22. A stirring paddle 11 is rotatably installed in the mixing chamber 1. A filter grid 12 is fixedly installed in the isolation chamber 2. A biofilm 13 is fixedly installed in the reaction tank 4. A disinfection lamp 14 is fixedly installed in the disinfection tank 8. A connecting pipe 17 is fixedly connected between the buffer tank 10 and the filter press 21.

[0027] This utility model provides a multi-stage biological sludge treatment device. Compared with the prior art, it first uses a mixing chamber 1 and an isolation chamber 2 to filter large particulate impurities in the sewage. Then, it is introduced into a first sedimentation chamber 3 for the first sedimentation treatment. Subsequently, it is introduced into a reaction tank 4 for treatment by a biofilm 13 and then introduced into a second sedimentation chamber 5 for sedimentation. The supernatant is then introduced into an anaerobic tank 6 and an aerobic tank 7 for treatment, followed by disinfection in a disinfection tank 8 and then into a clear water tank 9. During the above process, the sludge in the mixing chamber 1, the first sedimentation chamber 3, and the second sedimentation chamber 5 is sent into a filter press 21 for treatment by a screw conveyor 22. At the same time, a water pump 20 can pump the clear water in the clear water tank 9 into the screw conveyor 22 for rinsing. The sewage generated from rinsing is then introduced back into the first sedimentation chamber 3 for recycling treatment by a sludge pump 19. This improves the treatment efficiency and effect of sludge and sewage.

[0028] In another embodiment of this utility model, please refer to Figure 1 and Figure 2 A support plate is fixedly connected between the inner walls of both sides of the mixing chamber 1 near the opening. A servo motor is fixedly connected to the upper end of the support plate. The output end of the servo motor is fixedly connected to the upper end of the mixing paddle 11. The servo motor drives the mixing paddle 11 to rotate, which can drive the impurities in the sewage to undergo preliminary centrifugal separation.

[0029] In another embodiment of this utility model, please refer to Figure 2 and Figure 4 A pipe is fixedly connected between the mixing chamber 1 and the isolation chamber 2. A pipe is fixedly connected between the first sedimentation chamber 3 and the reaction tank 4. A pipe is fixedly connected between the second sedimentation chamber 5, the anaerobic tank 6, the aerobic tank 7, the disinfection tank 8, and the clear water tank 9. A pipe is fixedly connected between the lower ends of the mixing chamber 1, the first sedimentation chamber 3, and the second sedimentation chamber 5 and the screw conveyor 22. Multiple devices are connected through pipes, enabling multi-stage treatment of sewage. Valves 18 are fixedly connected to pipes 1, 2, multiple pipes 3, and multiple pipes 4. All pipes 1, 2, 3, and 4 are made of stainless steel.

[0030] In another embodiment of this utility model, please refer to Figure 2 A water pump 20 is installed between the clear water tank 9 and the screw conveyor 22. The inlet of the water pump 20 is fixedly connected to the bottom of the clear water tank 9 via a pipe, and the outlet of the water pump 20 is fixedly connected to the front outer wall of the screw conveyor 22 via a conduit. The water pump 20 pumps clear water from the clear water tank 9 into the screw conveyor 22 through the pipe, allowing for periodic flushing of the inside of the screw conveyor 22 to maintain cleanliness. A sludge pump 15 is installed between the isolation chamber 2 and the first sedimentation chamber 3. The inlet of the sludge pump 15 is... Inside the isolation chamber 2, the outlet of sludge pump 15 is located in the first sedimentation chamber 3. Sludge pump 15 pumps the sludge filtered for large particles in the isolation chamber 2 into the first sedimentation chamber 3 for sedimentation. A sludge pump 2 is located between the reaction tank 4 and the second sedimentation chamber 5. The inlet of sludge pump 2 is located in the reaction tank 4, and the outlet of sludge pump 2 is located in the second sedimentation chamber 5. Sludge pump 2 is used to pump the sludge treated by biofilm 13 in the reaction tank 4 into the second sedimentation chamber 5 for sedimentation.

[0031] In another embodiment of this utility model, please refer to Figure 3 and Figure 4 A sludge pump 319 is installed between the first sedimentation chamber 3 and the buffer tank 10. The inlet end of the sludge pump 319 is connected to the buffer tank 10, and the outlet end of the sludge pump 319 is located in the first sedimentation chamber 3.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage biological sludge treatment device, characterized in that: The system includes a mixing chamber (1), an isolation chamber (2), a first sedimentation chamber (3), a reaction tank (4), a second sedimentation chamber (5), an anaerobic tank (6), an aerobic tank (7), a disinfection tank (8), a clear water tank (9), a buffer tank (10), a filter press (21), and a screw conveyor (22). The mixing chamber (1) is equipped with a rotating stirring paddle (11), the isolation chamber (2) is equipped with a fixed filter grid (12), the reaction tank (4) is equipped with a fixed biofilm (13), the disinfection tank (8) is equipped with a fixed disinfection lamp (14), and the buffer tank (10) and the filter press (21) are fixedly connected by a connecting pipe (17).

2. A multi-stage biological sludge treatment device as claimed in claim 1, characterized in that: A support plate is fixedly connected between the inner walls of the two sides of the mixing chamber (1) near the opening. A servo motor is fixedly connected to the upper end of the support plate. The output end of the servo motor is fixedly connected to the upper end of the mixing paddle (11).

3. A multi-stage biological sludge treatment device as claimed in claim 1, characterized in that: A pipe is fixedly connected between the mixing chamber (1) and the isolation chamber (2). A pipe is fixedly connected between the first sedimentation chamber (3) and the reaction tank (4). A pipe is fixedly connected between the second sedimentation chamber (5), the anaerobic tank (6), the aerobic tank (7), the disinfection tank (8), and the clear water tank (9). A pipe is fixedly connected between the lower ends of the mixing chamber (1), the first sedimentation chamber (3), and the second sedimentation chamber (5) and the screw conveyor (22).

4. A multi-stage biological sludge treatment device as claimed in claim 3, characterized in that: Valves (18) are fixedly connected to each of the pipes 1, 2, multiple pipes 3 and multiple pipes 4, and the materials of the pipes 1, 2, 3 and 4 are all stainless steel.

5. The multi-stage biological sludge treatment device according to claim 1, wherein: A water pump (20) is provided between the clear water tank (9) and the screw conveyor (22). The water inlet of the water pump (20) is fixedly connected to the bottom of the clear water tank (9) through a pipe, and the water outlet of the water pump (20) is fixedly connected to the front outer wall of the screw conveyor (22) through a conduit.

6. A multi-stage biological sludge treatment device as claimed in claim 1, characterized in that: A sludge pump (15) is provided between the isolation chamber (2) and the first sedimentation chamber (3). The inlet of the sludge pump (15) is located in the isolation chamber (2), and the outlet of the sludge pump (15) is located in the first sedimentation chamber (3).

7. A multi-stage biological sludge treatment device as claimed in claim 1, characterized in that: A sludge pump 2 (16) is provided between the reaction tank (4) and the second sedimentation chamber (5). The inlet of the sludge pump 2 (16) is located in the reaction tank (4), and the outlet of the sludge pump 2 (16) is located in the second sedimentation chamber (5).

8. A multi-stage biological sludge treatment device as claimed in claim 1, characterized in that: A sludge pump three (19) is provided between the first sedimentation chamber (3) and the buffer tank (10). The inlet end of the sludge pump three (19) is connected to the buffer tank (10), and the outlet end of the sludge pump three (19) is located in the first sedimentation chamber (3).

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