Sewage integrated treatment solid-liquid separation device

Abstract

The utility model relates to the technical field of solid-liquid separation devices, in particular to a sewage integrated treatment solid-liquid separation device which comprises a filter box, an opening is formed in the top of the filter box, a first partition plate and a second partition plate are fixedly connected in the filter box, and the interior of the filter box is divided into a stirring tank, a precipitation tank and a filter tank by the first partition plate and the second partition plate. The precipitation tank and the filtering tank are arranged on the two sides of the stirring tank respectively, a third partition plate is arranged in the filtering tank and divides the filtering tank into two independent filtering sub-tanks, a fourth partition plate is arranged in the precipitation tank and divides the precipitation tank into two independent precipitation sub-tanks, one end of the filtering tank is connected with a water inlet header pipe communicated with the two precipitation sub-tanks, and the other end of the filtering tank is connected with a water outlet header pipe communicated with the other precipitation sub-tanks. Two first valves corresponding to the two precipitation branch tanks respectively are mounted on the water inlet header pipe, a water inlet pipe communicated with the stirring tank is connected to the first partition plate of each filter tank, and a second valve is mounted on each water inlet pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of solid-liquid separation devices, specifically a solid-liquid separation device for integrated wastewater treatment. Background Technology

[0002] Domestic sewage is wastewater discharged during daily life, mainly originating from residential and public buildings such as homes, government offices, schools, hospitals, shops, public places, and industrial enterprise restrooms. The pollutants in domestic sewage are primarily organic matter (such as proteins, carbohydrates, fats, urea, and ammonia nitrogen) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infectious viruses). The organic matter in domestic sewage is extremely unstable and easily decomposes, producing a foul odor. Bacteria and pathogens use the organic matter in domestic sewage as nutrients to multiply rapidly, potentially leading to the spread of infectious diseases. Therefore, domestic sewage must be treated before discharge.

[0003] Chinese Patent Publication No. CN219792728U discloses an integrated urban domestic sewage treatment device. The top of the tank is equipped with a first chamber, a second chamber, and a third chamber. Sewage entering the first chamber undergoes sludge sedimentation. After passing through a filter plate, the sewage enters the second chamber, where chemicals are added to mix the sewage and chemicals thoroughly, forming suspended solids. These suspended solids then enter the third chamber through a connecting pipe, where they are filtered by a filter box. Finally, the sewage is discharged through a drain pipe, thus completing the solid-liquid separation and filtration of the sewage.

[0004] The device is equipped with a baffle driven by a drive motor, and a sludge discharge port blocked by the baffle is opened on the tank body. The drive motor drives the threaded column to rotate, and the threaded column can lift the baffle, so that the baffle opens the sludge discharge port to clean the sludge in the first chamber. However, the device needs to be stopped when cleaning the sludge, which makes the device unable to operate continuously. Utility Model Content

[0005] The purpose of this invention is to provide an integrated wastewater treatment solid-liquid separation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An integrated wastewater treatment solid-liquid separation device includes a filter box with an opening at the top and a first and second partition plate fixedly connected inside. The first and second partition plates divide the interior of the filter box into a stirring tank, a sedimentation tank, and a filtration tank, with the sedimentation tank and filtration tank located on opposite sides of the stirring tank. A third partition plate in the filtration tank divides it into two separate filtration sub-tanks. A fourth partition plate in the sedimentation tank divides it into two separate sedimentation sub-tanks. One end of the filter box is connected to a main inlet pipe that communicates with the two sedimentation sub-tanks. The filter box has two first valves corresponding to the two sedimentation tanks. Each filter tank has an inlet pipe connected to the stirring tank on its first partition plate. A second valve is installed on each inlet pipe. The top of the second partition plate has two mounting slots corresponding to the sedimentation tanks. A first filter screen is installed on the mounting slots. The bottom of one end of the filter box is connected to a drain pipe connected to the filter tank. The bottom of the other end is fixedly connected to a sludge rack. The bottom of one end of the filter box has two sludge holes corresponding to the sedimentation tanks. The sludge rack is equipped with two gate structures corresponding to the sludge holes.

[0008] Furthermore, the gate structure includes a first motor, a threaded rod connected to the first motor, a gate plate mounted on the threaded rod, and a threaded hole at the top of the gate plate that is threadedly connected to the threaded rod.

[0009] Furthermore, each filter compartment is equipped with a second filter screen.

[0010] Furthermore, both sides of the filter box are threaded with set screws, and the set screws correspond to the first filter screen.

[0011] Furthermore, a stirring structure is installed on the stirring tank.

[0012] Furthermore, the stirring structure includes a second motor, on which a rotating shaft is connected to the filter box, and multiple evenly distributed stirring blades are connected to the rotating shaft.

[0013] Furthermore, the bottom wall of the sedimentation tank is designed as a slope.

[0014] The beneficial effects of this utility model are:

[0015] This integrated wastewater treatment solid-liquid separation device uses two sedimentation tanks on the filter box, with an F-shaped inlet main pipe connected to the two sedimentation tanks. Two first valves are installed on the inlet main pipe. By closing the outlet end of the inlet main pipe of one of the two first valves, one sedimentation tank can be cleaned, while wastewater can continue to flow into the other sedimentation tank, so as to keep the device operating continuously and improve work efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Filter box; 2. First partition plate; 3. Second partition plate; 4. Third partition plate; 5. Fourth partition plate; 6. Drain pipe; 7. Sewage rack; 8. Sewage outlet; 9. Gate structure; 10. Main inlet pipe; 11. First valve; 12. First filter screen; 13. Inlet pipe; 14. Second valve; 15. Stirring structure; 16. Threaded rod; 17. Gate plate; 18. First motor; 19. Slope; 20. Second motor; 21. Rotating shaft; 22. Stirring blade; 23. Top screw; 24. Second filter screen. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3 This application provides an integrated wastewater treatment solid-liquid separation device, including a filter box 1. The top of the filter box 1 is provided with an opening, and a first partition plate 2 and a second partition plate 3 are fixedly connected inside. The first partition plate 2 and the second partition plate 3 divide the interior of the filter box 1 into a stirring tank, a sedimentation tank, and a filtration tank. The sedimentation tank and the filtration tank are placed on opposite sides of the stirring tank. A third partition plate 4 is provided in the filtration tank and is fixedly connected to the filter box 1 and the first partition plate 2, dividing the filtration tank into two separate filtration sub-tanks. A fourth partition plate 5 is provided in the sedimentation tank and is fixedly connected to the filter box 1 and the second partition plate 3, dividing the sedimentation tank into two separate sedimentation sub-tanks.

[0023] The upper part of one end of the filter box 1 is connected to the main water inlet pipe 10. The main water inlet pipe 10 is F-shaped. The water inlet end of the water inlet pipe 13 is connected to the external water supply equipment. The two water outlets of the main water inlet pipe 10 enter the two sedimentation tanks respectively. A first valve 11 is installed on the main water inlet pipe 10 near the two water outlets. By selectively closing one of the two first valves 11, water can be introduced into the corresponding filter tank from the water outlet of the other main water inlet pipe 10.

[0024] A drain rack 7 is fixedly connected to the bottom of one end of the filter box 1. The drain rack 7 is located below the inlet pipe 13. Two gate structures 9 are installed on the drain rack 7, which correspond to the filter compartments respectively. Two drain holes 8 are opened at the bottom of one end of the filter box 1, which correspond to the filter compartments respectively. The bottom wall of the filter compartment is set as a slope 19 facing the drain hole 8. The drain rack 7 is set in a mountain shape, so that the drain rack 7 forms two U-shaped grooves. A support plate fixedly connected to the drain rack 7 is set on the top of each U-shaped groove. The two U-shaped grooves correspond to two drain outlets respectively. The sludge in the sedimentation compartment can slide from the U-shaped groove along the slope 19.

[0025] The gate structure 9 includes a first motor 18, which is mounted on the top of the support plate. The rotating end of the first motor 18 is connected to a threaded rod 16, which passes through the support plate and is rotatable. A gate plate 17 that matches the U-shaped groove is mounted on the threaded rod 16, and a threaded hole that is threadedly connected to the threaded rod 16 is opened on the top of the gate plate 17.

[0026] Driven by one of the motors, the threaded rod 16 is moved within the threaded rod 16 of the gate 17, which can move the gate 17 up or down to open or block the drain hole 8.

[0027] The top of the second partition plate 3 has two mounting slots that correspond to the sedimentation tank, and the first filter screen 12 is installed on the mounting slot. Both sides of the filter box 1 are threaded with set screws 23, and the set screws 23 correspond to the first filter screen 12.

[0028] Rotate the set screw 23 on the filter box 1 so that the set screw 23 presses the first filter screen 12 tightly against the mounting groove of the filter box 1 from the side. After the sewage settles in the filter tank, the floating matter of the sewage in the sedimentation tank is blocked by the first filter screen 12 and remains in the sedimentation tank. The sewage enters the mixing tank through the first filter screen 12.

[0029] A stirring structure 15 is installed on the stirring tank. The stirring structure 15 includes a second motor 20. The second motor 20 is installed on one side of the filter box 1. A rotating shaft 21 is connected to the rotating end of the second motor 20 and is rotatably connected to the filter box 1. Multiple evenly distributed stirring blades 22 are connected to the rotating shaft 21.

[0030] The agent is placed into the mixing tank and stored in a storage bottle with a water inlet. The agent is gradually released when it comes into contact with water. The second motor 20 drives the stirring plate 22 to rotate, which can make the sewage and the agent fully mixed. The agent can cause impurities in the sewage to coagulate and float on the top of the sewage.

[0031] Each filter tank has a first partition plate 2 connected to a water inlet pipe 13 that communicates with the mixing tank. A second valve 14 is installed on each water inlet pipe 13. A drain pipe 6 is connected to the bottom of one end of the filter box 1. The drain pipe 6 is Y-shaped and is connected to two filter sub-tanks respectively. A support block is fixedly connected to the middle wall of the filter sub-tank, and a second filter screen 24 is installed on the support block.

[0032] By closing one of the second valves 14, sewage is introduced into its corresponding filter compartment by the other inlet pipe 13. The second filter screen 24 can filter floating objects in the sewage and clean the floating objects on the second filter screen 24 in the filter compartment corresponding to the closed second valve 14.

[0033] In summary, this integrated wastewater treatment solid-liquid separation device operates as follows: during use, wastewater is supplied to the main inlet pipe 10, and the wastewater flows along the main inlet pipe 10 into two sedimentation tanks. Due to its large weight, the silt in the wastewater settles downwards under its own gravity and accumulates on the slope 19 of the bottom wall of the sedimentation tank. The wastewater then passes through the first filter plate into the mixing tank, where the first filter plate blocks floating objects in the wastewater, keeping them in the sedimentation tank. Workers can use tools to retrieve the floating objects.

[0034] The wastewater entering the mixing tank is stirred by the agitator 22 on the rotating shaft 21 driven by the second motor 20, so that the agent and wastewater are fully mixed and coagulated into floating objects floating on the wastewater. Then, the wastewater enters the filtration tank through the inlet pipe 13 and is filtered by the second filter screen 24. The floating objects are placed in the filtration tank, and the wastewater flows into the bottom of the filtration tank through the second filter screen 24 and is discharged along the drain pipe 6.

[0035] When it is necessary to clean the sludge at the bottom of the sedimentation tank, close one of the first valves 11 to prevent the drain end of the main inlet pipe 10 on the first valve 11 from entering the corresponding sedimentation tank. Start the corresponding first motor 18 so that the first motor 18 drives the threaded rod 16 to rotate in the threaded hole of the gate plate 17, lifting the gate plate 17. The sludge is discharged along the bottom slope 19 of the sedimentation tank through the drain hole 8. Start the first motor 18 in reverse so that the threaded rod 16 drives the gate plate 17 to block the drain hole 8. During this process, sewage is continuously injected into the sedimentation tank on the other side. Open the closed first valve 11 so that the sewage re-enters the sedimentation tank after the sludge has been cleaned. Then close the first valve 11 on the uncleaned sedimentation tank. This alternating cleaning of the two sedimentation tanks can keep the device continuously operating on sewage.

[0036] When cleaning the floating matter on the second filter screen 24 in the filter tank, one of the two second valves 14 is closed to prevent sewage from entering the sedimentation tank corresponding to the closed second valve 14 through the inlet pipe 13. Then the second filter screen 24 is cleaned. The two valves are closed alternately to clean the floating matter on the second filter screen 24 in the sedimentation tank corresponding to the second valve 14, thereby achieving cleaning without stopping the machine.

[0037] 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 claims and their equivalents.

Claims

1. A solid-liquid separation device for integrated wastewater treatment, comprising a filter box, characterized in that: The filter box has an opening at the top and is internally fixedly connected to a first partition plate and a second partition plate. These partition plates divide the interior of the filter box into a stirring tank, a sedimentation tank, and a filtration tank. The sedimentation tank and filtration tank are located on opposite sides of the stirring tank. A third partition plate within the filtration tank divides it into two separate filtration sub-tanks. A fourth partition plate within the sedimentation tank divides it into two separate sedimentation sub-tanks. One end of the filter box is connected to a main water inlet pipe that communicates with the two sedimentation sub-tanks. Two connectors are installed on the main water inlet pipe, each connecting to one of the two sub-tanks. The sedimentation tank has a first valve corresponding to it. Each filter tank has a first partition plate connected to an inlet pipe that communicates with the stirring tank. A second valve is installed on each inlet pipe. The top of the second partition plate has two mounting slots that correspond to the sedimentation tanks respectively, and a first filter screen is installed on the mounting slots. The bottom of one end of the filter box is connected to a drain pipe that communicates with the filter tanks, and the bottom of the other end is fixedly connected to a drain rack. The bottom of one end of the filter box has two drain holes that correspond to the sedimentation tanks respectively, and the drain rack is equipped with two gate structures that correspond to the drain holes.

2. The integrated wastewater treatment solid-liquid separation device according to claim 1, characterized in that: The gate structure includes a first motor, a threaded rod connected to the first motor, a gate plate installed on the threaded rod, and a threaded hole at the top of the gate plate that is threadedly connected to the threaded rod.

3. The integrated wastewater treatment solid-liquid separation device according to claim 1, characterized in that: Each of the filter compartments is equipped with a second filter screen.

4. The integrated wastewater treatment solid-liquid separation device according to claim 1, characterized in that: Both sides of the filter box are threaded with set screws, and the set screws correspond to the first filter screen.

5. The integrated wastewater treatment solid-liquid separation device according to claim 1, characterized in that: The mixing tank is equipped with a mixing structure.

6. The integrated wastewater treatment solid-liquid separation device according to claim 5, characterized in that: The stirring structure includes a second motor, on which a rotating shaft is connected to the filter box, and multiple evenly distributed stirring blades are connected to the rotating shaft.

7. The integrated wastewater treatment solid-liquid separation device according to claim 1, characterized in that: The bottom wall of the sedimentation tank is sloped.

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