A device for resource utilization of domestic sewage

Abstract

The utility model discloses a device of resource utilization domestic sewage relates to sewage treatment technical field. Including processing box, be provided with filter tank, adjusting pool, anaerobic tank, anoxic tank, aerobic tank, sedimentation tank and disinfection tank in processing box, the bottom of processing box is fixed with first extrusion case and second extrusion case, install filter conveyor in filter tank, for conveying garbage to first extrusion case, be provided with screw conveyor in sedimentation tank, and sedimentation tank is linked together with second extrusion case. The utility model discloses a sewage is sent into filter tank and carries out filtration, and impurity is blocked on the surface of filter conveyor, and garbage is conveyed to first extrusion case through filter conveyor, and the sewage after filtering enters adjusting pool, anaerobic tank, anoxic tank, aerobic tank, sedimentation tank and disinfection tank in proper order, and the bottom of sedimentation tank is no longer shielded by the movement of baffle driven by air cylinder, so that the bottom sludge part is conveyed to second extrusion case through screw conveyor.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a device for the resource utilization of domestic wastewater. Background Technology

[0002] With the acceleration of global urbanization and the continuous growth of population, the volume of domestic sewage discharge has increased dramatically. Statistics show that the global annual volume of domestic sewage reaches tens of billions of tons. If discharged directly without effective treatment, it will cause serious pollution to aquatic ecosystems, threatening water resource security and ecological balance. Against this backdrop, the resource utilization of domestic sewage has become a key path to alleviate water shortages and reduce environmental pressure. However, existing domestic sewage treatment devices (Announcement No.: CN212610054U) have the following drawbacks in use:

[0003] During its use, after the sewage filtration process is completed, the solid waste (such as suspended solids, impurities, colloids, etc.) that is trapped only stays in the filter components and cannot be directly compressed to squeeze out the water. The uncompressed waste has a high water content and large volume, which increases the subsequent transportation costs and storage space requirements. Therefore, this patent proposes a device for resource utilization of domestic sewage to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a device for the resource utilization of domestic sewage, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for resource utilization of domestic sewage, comprising a treatment tank, which contains a filtration tank, an equalization tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, and a disinfection tank. A first squeezing box and a second squeezing box are fixed to the bottom of the treatment tank. A filter conveyor is installed in the filtration tank to transport waste to the first squeezing box. A screw conveyor is installed in the sedimentation tank, which is connected to the second squeezing box. The bottom of the first squeezing box has multiple first water flow holes, and the bottom of the second squeezing box has multiple second water flow holes. A first squeezing plate and a second squeezing plate are slidably connected in the first and second squeezing boxes, respectively. A first push rod and a second push rod are fixed to the rear side of the first and second squeezing plates, respectively, and the first push rod and the second push rod pass through the first and second squeezing boxes, respectively.

[0006] Preferably, a mounting plate is fixed to the bottom of the treatment tank, a cylinder is fixed to one side of the mounting plate, and a baffle is fixed to the output end of the cylinder for sealing the sedimentation tank.

[0007] Preferably, a first liquid storage tank is fixed to the bottom of the first extrusion box, a second liquid storage tank is fixed to the bottom of the second extrusion box, a collection box is fixed to the bottom of the processing box, a first transport pipe is fixedly connected between the first liquid storage tank and the collection box, and a second transport pipe is fixedly connected between the second liquid storage tank and the collection box.

[0008] Preferably, a water pump is installed inside the collection tank, and the outlet of the water pump is fixedly connected to a connecting pipe, which is fixedly connected to the regulating tank.

[0009] Preferably, a first stop is installed on one side of the first extrusion box, and a second stop is installed on one side of the second extrusion box.

[0010] Preferably, a baffle is fixed to the top of the first extrusion box, and two crushing rollers are rotatably connected between the inner walls of the two sides of the baffle. A first motor is fixed to one side of the baffle, and the output end of the first motor passes through the baffle and is fixed to one of the crushing rollers. The two crushing rollers pass through the other side of the baffle and are respectively fixed with gears. The two gears mesh with each other. A rotating brush is rotatably connected between the inner walls of the two sides of the baffle for cleaning the filter conveyor. A second motor is fixed to one side of the baffle, and the output end of the second motor passes through the baffle and is fixed to the rotating brush.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By sending wastewater into a filtration tank for filtration, impurities are blocked on the surface of the filtration conveyor. The filtration conveyor then transports the wastewater to the first compression tank. After filtration, the wastewater sequentially enters the equalization tank, anaerobic tank, anoxic tank, aerobic tank, sedimentation tank, and disinfection tank. A cylinder drives a baffle to move, removing the obstruction at the bottom of the sedimentation tank. The bottom sludge is then transported to the second compression tank by a screw conveyor. Subsequently, by pushing the first and second push rods, the first and second compression plates are moved to compress the impurities. The squeezed water is discharged through the first and second water outlets, respectively. The compressed impurities are reduced in volume, lowering the pressure for subsequent treatment and facilitating later transportation. This eliminates the need for further transfer to other locations for compression, reducing transportation costs and storage space requirements. Attached Figure Description

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

[0014] Figure 2 This is a schematic diagram of the crushing roller structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the extrusion plate structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the push rod structure of this utility model.

[0017] In the diagram: 1. Treatment tank; 2. Filtration tank; 3. Equalization tank; 4. Anaerobic tank; 5. Anoxic tank; 6. Aerobic tank; 7. Sedimentation tank; 8. Disinfection tank; 9. Filter conveyor; 10. Screw conveyor; 11. First extrusion box; 12. Second extrusion box; 13. Collection box; 14. First transport pipe; 15. Second transport pipe; 16. Connecting pipe; 17. Baffle; 18. Crushing roller; 19. Rotating brush; 20. First extrusion plate; 21. First water outlet; 22. First baffle; 23. First storage tank; 24. Second extrusion plate; 25. Second baffle; 26. Second storage tank; 27. Cylinder; 28. Baffle; 29. ​​First push rod; 30. Second push rod. Detailed Implementation

[0018] 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.

[0019] With the acceleration of global urbanization and the continuous growth of population, the volume of domestic sewage discharge has increased dramatically. Statistics show that the world generates tens of billions of tons of domestic sewage annually. If discharged directly without effective treatment, it will cause serious pollution to aquatic ecosystems, threatening water resource security and ecological balance. Against this backdrop, the resource utilization of domestic sewage has become a key path to alleviate water shortages and reduce environmental pressure.

[0020] like Figures 1-4As shown, this utility model provides a technical solution: a device for resource utilization of domestic sewage, including a treatment tank 1. The treatment tank 1 contains a filter tank 2, an equalization tank 3, an anaerobic tank 4, an anoxic tank 5, an aerobic tank 6, a sedimentation tank 7, and a disinfection tank 8. A first compression box 11 and a second compression box 12 are fixed to the bottom of the treatment tank 1. A filter conveyor 9 is installed in the filter tank 2 to transport waste into the first compression box 11. A screw conveyor 10 is installed in the sedimentation tank 7, which is connected to the second compression box 12. The bottom of the first compression box 11 has multiple first water flow holes 21, and the bottom of the second compression box 12 has multiple second water flow holes. A first extrusion plate 20 and a second extrusion plate 24 are slidably connected inside the first extrusion box 11 and the second extrusion box 12, respectively. A first push rod 29 and a second push rod 30 are fixed to the rear side of the first extrusion plate 20 and the second extrusion plate 24, respectively. The first push rod 29 and the second push rod 30 pass through the first extrusion box 11 and the second extrusion box 12, respectively. Later, the first push rod 29 and the second push rod 30 can be moved by the existing pushing device. Pressure sensors can be installed between the first push rod 29 and the second push rod 30 and the pushing device to monitor the extrusion force, so as to avoid excessive pressure that may damage the first extrusion plate 20 and the second extrusion plate 24, and insufficient pressure that may not squeeze out the water in the impurities. A mounting plate is fixed to the bottom of the treatment box 1. A cylinder 27 is fixed to one side of the mounting plate. A baffle 28 is fixed to the output end of the cylinder 27 for sealing the sedimentation tank 7.

[0021] It is important to note that by sending wastewater into the filtration tank 2 for filtration, impurities are blocked on the surface of the filter conveyor 9. The filter conveyor 9 then transports the wastewater to the first compression box 11. After filtration, the wastewater first enters the equalization tank 3. By mixing wastewater from different time periods, the water quality (such as pH and pollutant concentration) and water volume are balanced, preventing the efficiency of subsequent treatment units from decreasing due to water quality fluctuations (such as high-concentration pollutant shocks) or sudden increases in water volume. This creates stable conditions for subsequent treatment. Afterward, the water in the equalization tank 3 is pumped to the anaerobic tank 4. In an anaerobic environment, anaerobic microorganisms degrade organic matter, remove some COD (chemical oxygen demand), and break down large organic molecules into smaller molecules. Then, the wastewater in the anaerobic tank 4 is pumped to the anoxic tank 5 for denitrification, removing nitrogen (such as ammonia nitrogen) from the wastewater and further degrading organic matter. After treatment, the wastewater is pumped to the aerobic tank 6, where oxygen is provided through aeration. Aerobic bacteria (such as nitrifying bacteria) decompose organic matter into carbon dioxide and water, and at the same time convert ammonia nitrogen into nitrate nitrogen, preparing for subsequent denitrification. Finally, the treated wastewater is pumped to the sedimentation tank 7 for sedimentation treatment. As the wastewater slowly flows through the sedimentation tank 7, the sludge settles to the bottom under gravity, and the clear water overflows and is discharged into the disinfection tank 8 for disinfection treatment. The cylinder 27 drives the baffle 28 to move, so that the bottom of the sedimentation tank 7 is no longer blocked. In this way, the bottom sludge is transported to the second squeezing box 12 by the screw conveyor 10. Then, by pushing the first push rod 29 and the second push rod 30, the first squeezing plate 20 and the second squeezing plate 24 are moved to squeeze the impurities. The squeezed water is discharged through the first water outlet 21 and the second water outlet, respectively.

[0022] like Figure 3 As shown, a first storage tank 23 is fixed to the bottom of the first extrusion tank 11, a second storage tank 26 is fixed to the bottom of the second extrusion tank 12, and a collection tank 13 is fixed to the bottom of the processing tank 1. A first transport pipe 14 is fixedly connected between the first storage tank 23 and the collection tank 13, and a second transport pipe 15 is fixedly connected between the second storage tank 26 and the collection tank 13. A water pump is installed inside the collection tank 13, and a connecting pipe 16 is fixedly connected to the outlet of the water pump. The connecting pipe 16 is fixedly connected to the regulating tank 3. A first baffle 22 is installed on one side of the first extrusion tank 11, and a second baffle 25 is installed on one side of the second extrusion tank 12.

[0023] It should be noted that the water discharged into the first storage tank 23 enters the collection tank 13 through the first transport pipe 14, and the water discharged into the second storage tank 26 enters the collection tank 13 through the second transport pipe 15. Finally, the water is pumped to the equalization tank 3 for further treatment. When it is necessary to remove the sludge, the sludge can be removed by opening the first gate 22 and the second gate 25.

[0024] like Figure 2 As shown, a baffle 17 is fixed to the top of the first extrusion box 11. Two crushing rollers 18 are rotatably connected between the inner walls of the two sides of the baffle 17. A first motor is fixed to one side of the baffle 17. The output end of the first motor passes through the baffle 17 and is fixed to one of the crushing rollers 18. The two crushing rollers 18 pass through the other side of the baffle 17 and are respectively fixed with gears. The two gears mesh with each other. A rotating brush 19 is rotatably connected between the inner walls of the two sides of the baffle 17 for cleaning the filter conveyor 9. A second motor is fixed to one side of the baffle 17. The output end of the second motor passes through the baffle 17 and is fixed to the rotating brush 19.

[0025] It should be noted that by starting the first motor, the first motor drives one of the crushing rollers 18 to rotate, which in turn drives one of the gears to rotate. This drives the other gear, causing both crushing rollers 18 to rotate, thus crushing larger impurities. When the filter conveyor 9 transports garbage, the rotating brush 19 cleans the garbage off the surface of the filter conveyor 9. The filter conveyor 9 is existing technology and will not be elaborated on here. The control method of the electrical components in this solution is controlled by its matching peripheral controller, and the control circuit can be implemented by those skilled in the art through simple programming. It is common knowledge in the field and is only used without modification. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A device for resourceful utilization of domestic sewage, comprising a treatment tank (1), characterized in that: The treatment tank (1) is equipped with a filter tank (2), an equalization tank (3), an anaerobic tank (4), an anoxic tank (5), an aerobic tank (6), a sedimentation tank (7), and a disinfection tank (8). The bottom of the treatment tank (1) is fixed with a first compression box (11) and a second compression box (12). A filter conveyor (9) is installed in the filter tank (2) to transport the waste to the first compression box (11). A screw conveyor (10) is installed in the sedimentation tank (7). The sedimentation tank (7) is connected to the second compression box (12). The first compression box (11) is connected to the second compression box (12). 1) has multiple first water flow holes (21) at its bottom end, and multiple second water flow holes at its bottom end. The first extrusion box (11) and the second extrusion box (12) are slidably connected to each other. The first extrusion plate (20) and the second extrusion plate (24) are respectively slidably connected inside the first extrusion box (11) and the second extrusion plate (24). The first push rod (29) and the second push rod (30) are respectively fixed to the rear side of the first extrusion plate (20) and the second extrusion plate (24). The first push rod (29) and the second push rod (30) pass through the first extrusion box (11) and the second extrusion box (12) respectively.

2. The device for resource utilization of domestic sewage according to claim 1, characterized in that: The bottom of the treatment box (1) is fixed with an installation plate, and a cylinder (27) is fixed on one side of the installation plate. A baffle (28) is fixed at the output end of the cylinder (27) for sealing the sedimentation tank (7).

3. The device for resource utilization of domestic sewage according to claim 1, characterized in that: The bottom end of the first extrusion box (11) is fixed with a first liquid storage tank (23), the bottom end of the second extrusion box (12) is fixed with a second liquid storage tank (26), the bottom end of the processing box (1) is fixed with a collection box (13), the first liquid storage tank (23) and the collection box (13) are fixedly connected by a first transport pipe (14), and the second liquid storage tank (26) and the collection box (13) are fixedly connected by a second transport pipe (15).

4. The device for resource utilization of domestic sewage according to claim 3, characterized in that: A water pump is installed inside the collection box (13), and the outlet of the water pump is fixedly connected to a connecting pipe (16), which is fixedly connected to the regulating tank (3).

5. The device for resource utilization of domestic sewage according to claim 1, characterized in that: A first stop (22) is installed on one side of the first extrusion box (11), and a second stop (25) is installed on one side of the second extrusion box (12).

6. The apparatus for resource utilization of domestic sewage according to claim 1, characterized in that: A baffle (17) is fixed at the top of the first extrusion box (11). Two crushing rollers (18) are rotatably connected between the inner walls of the two sides of the baffle (17). A first motor is fixed on one side of the baffle (17). The output end of the first motor passes through the baffle (17) and is fixed to one of the crushing rollers (18). The two crushing rollers (18) pass through the other side of the baffle (17) and are respectively fixed with gears. The two gears mesh with each other. A rotating brush (19) is rotatably connected between the inner walls of the two sides of the baffle (17) for cleaning the filter conveyor (9). A second motor is fixed on one side of the baffle (17). The output end of the second motor passes through the baffle (17) and is fixed to the rotating brush (19).

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