Composite multi-stage filtration sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a composite multi-stage filtration sewage treatment device, which comprises a fixed bottom plate, a grating pool, a settling tank and a filter tank, a settling area is formed in the bottom of the settling tank, and an ultraviolet germicidal lamp is arranged at the bottom of a cover plate in the front-back direction of a pipeline connector. According to the utility model, the cover plate is arranged at the top of the static box, and the threaded connection groove is locked and mounted by the connecting bolt, so that sewage is filtered by the filter plate after reaching the position of the filter box, then is filtered by the activated carbon layer and is discharged from the water outlet, and the water outlet is connected at the position of the pipeline connector; therefore, when water is drained from the water outlet, water flow can reach the position of the static box for temporary storage, the ultraviolet germicidal lamp is assembled at the position, located in the front-back direction of the pipeline connecting opening, of the bottom of the cover plate, the ultraviolet germicidal lamp can work for sterilization treatment in the static state, and the overall sterilization capacity is well improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a composite multi-stage filtration wastewater treatment device. Background Technology

[0002] Wastewater refers to the total amount of water discharged during production and daily life activities. It usually contains various harmful substances, such as organic matter, inorganic matter, and microorganisms, and has lost its original function. Wastewater mainly comes from domestic sewage, industrial wastewater, and initial rainwater and flushing water in polluted areas. Untreated wastewater discharged directly into the natural environment will cause serious pollution to water bodies, soil, and air.

[0003] Therefore, in order to prevent the harm caused by direct discharge of sewage, it is usually necessary to treat it before discharge. This requires the use of composite multi-stage filtration sewage treatment devices. During sewage treatment, filtration and sedimentation are mostly used to remove suspended solids. However, sewage may also contain harmful microorganisms such as bacteria and viruses. If not treated properly, it can still cause serious pollution to the environment. Utility Model Content

[0004] The purpose of this invention is to provide a composite multi-stage filtration wastewater treatment device to solve the problem mentioned in the background art that in wastewater treatment, most methods such as filtration and sedimentation are used to remove suspended solids, but wastewater may also contain harmful microorganisms such as bacteria and viruses, which can easily cause serious environmental pollution if not properly treated.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite multi-stage filtration wastewater treatment device, comprising a fixed base plate, a grit chamber, a sedimentation tank, and a filter tank. A sedimentation zone is formed at the bottom of the sedimentation tank, and an observation window is fixed to the front end of the sedimentation tank. A ramp plate is fixed to the bottom of the grit chamber. A working motor is installed on the top of the sedimentation tank, and a stirring shaft is connected to the output end of the working motor. An outlet is installed at the bottom of the filter tank. A stationary box is located on the top of the fixed base plate below the outlet. A cover plate is fitted over the stationary box, and side plates are fixed to both sides of the bottom of the cover plate. Threaded connection grooves are provided in both the side plates and the stationary box, and connecting bolts are connected to the threaded connection grooves. A pipe connection port for connecting to the outlet is provided on the cover plate, and an ultraviolet germicidal lamp is installed at the bottom of the cover plate in the direction before and after the pipe connection port.

[0006] As a further technical solution of this utility model, a storage battery is provided at the back of the static box, and a circuit for powering the ultraviolet germicidal lamp is arranged inside the cover.

[0007] As a further technical solution of this utility model, the ultraviolet germicidal lamps are symmetrically distributed about the central axis of the cover plate, and the side plates are symmetrically distributed about the central axis of the cover plate.

[0008] As a further technical solution of this utility model, a threaded connection is formed between the connecting bolt and the threaded connecting groove, and a drain outlet is installed at the lower position of the side of the stationary box.

[0009] As a further technical solution of this utility model, a grid filter plate is installed at the upper position in the grid pool, and the left side of the inclined plate is higher than the right side.

[0010] As a further technical solution of this utility model, a first pump body is provided on the side of the bar screen pool, one end of the first pump body is connected to a pipe, the pipe extends into the interior of the bar screen pool, the other end of the first pump body is connected to a first drain pipe, and a second booster pump is configured on the first drain pipe.

[0011] As a further technical solution of this utility model, the tail end of the first drainage pipe is connected to the interior of the sedimentation tank, the bottom of the sedimentation tank is connected to a slag discharge port, and a second pump body is provided on the side of the sedimentation tank.

[0012] As a further technical solution of this utility model, one end of the second pump body is connected to an extraction pipe, which is connected to the sedimentation tank and communicates with it. The other end of the second pump body is connected to a main flow pipe. The bottom of the main flow pipe has evenly distributed branch outlets. The main flow pipe is equipped with a first booster pump. Two sets of filter plates are arranged in the filter box. An activated carbon layer is distributed at the lower position in the filter box.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this composite multi-stage filtration sewage treatment device not only improves the sterilization ability, but also improves the sedimentation and filtration capacity of the composite multi-stage filtration sewage treatment device.

[0014] (1) By placing the cover plate on the top of the static box and locking it with a connecting bolt at the threaded connection groove, when the sewage reaches the filter box, it is first filtered by the filter plate, then filtered by the activated carbon layer and discharged at the outlet. The outlet is connected at the pipe connection port. Therefore, when the sewage is drained at the outlet, the water can be temporarily stored at the static box. The bottom of the cover plate is equipped with an ultraviolet germicidal lamp in the front and rear direction of the pipe connection port. Therefore, when the sewage is static, the ultraviolet germicidal lamp can be used for sterilization. This improves the overall sterilization ability during the working process.

[0015] (2) By forming a sedimentation zone at the bottom of the sedimentation tank, and fixing an observation window at the front end of the sedimentation tank in a position that matches the sedimentation zone, the sewage can be observed through the observation window when it settles in the sedimentation tank. During sedimentation, the working motor can be started to drive the stirring shaft to rotate, which can improve the settling speed and removal rate of the sediment. The settled material can be discharged at the slag discharge port, thus improving the overall sedimentation capacity during the working process.

[0016] (3) By assembling the grid filter plate at the top of the grid tank, large suspended particles such as paper and plastic are intercepted at the position of the grid filter plate. Based on the setting of the inclined plate, it is convenient to draw the subsequent water flow. After the sewage is settled in the sedimentation tank, the sewage reaches the position of the filter box. This process is evenly distributed by three diversion ports. Based on the work of the filter plate and the activated carbon layer, it improves the overall filtration capacity. Attached Figure Description

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

[0018] Figure 2 This is a front view structural diagram of the present invention;

[0019] Figure 3 This is a bottom view of the cover plate structure of this utility model;

[0020] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0021] In the diagram: 1. Fixed base plate; 2. Bar screen; 3. Inclined plate; 4. Bar screen filter plate; 5. First pump body; 6. Slag discharge port; 7. Sedimentation tank; 8. Sedimentation zone; 9. Second pump body; 10. Filter box; 11. Outlet; 12. Cover plate; 13. Static tank; 14. Activated carbon layer; 15. Filter plate; 16. Diversion port; 17. Main pipe; 18. First booster pump; 19. Working motor; 20. First diversion pipe; 21. Second booster pump; 22. Observation window; 23. Pipe connection port; 24. Ultraviolet germicidal lamp; 25. Side plate; 26. Threaded connection groove; 27. Connecting bolt. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a composite multi-stage filtration wastewater treatment device, comprising a fixed base plate 1, a grit chamber 2, a sedimentation tank 7, and a filter box 10. A sedimentation zone 8 is formed at the bottom of the sedimentation tank 7, and an observation window 22 is fixed to the front end of the sedimentation tank 7. A ramp plate 3 is fixed at the bottom of the grit chamber 2. A working motor 19 is installed on the top of the sedimentation tank 7, and a stirring shaft is connected to the output end of the working motor 19. An outlet 11 is installed at the bottom of the filter box 10. A stationary box 13 is located below the outlet 11 on the top of the fixed base plate 1. A cover plate 12 is placed on the top of the stationary box 13. Side plates 25 are fixed to both sides of the bottom of the cover plate 12. Threaded connection grooves 26 are provided in both the side plates 25 and the stationary box 13, and connecting bolts 27 are connected to the threaded connection grooves 26. A pipe connection port 23 for connecting to the outlet 11 is provided on the cover plate 12. An ultraviolet germicidal lamp 24 is located at the bottom of the cover plate 12 in the direction before and after the pipe connection port 23.

[0024] The rear of the stationary box 13 is equipped with a battery, and the cover 12 contains wiring for powering the ultraviolet germicidal lamp 24.

[0025] The ultraviolet germicidal lamps 24 are symmetrically distributed about the central axis of the cover plate 12, and the side plates 25 are symmetrically distributed about the central axis of the cover plate 12.

[0026] A threaded connection is formed between the connecting bolt 27 and the threaded connecting groove 26, and a drain outlet is installed on the lower side of the stationary box 13.

[0027] A grid filter plate 4 is installed at the upper position inside the grid pool 2, and the left side of the inclined plate 3 is higher than the right side.

[0028] A first pump body 5 is provided on the side of the bar screen 2. One end of the first pump body 5 is connected to a pipe that extends into the interior of the bar screen 2. The other end of the first pump body 5 is connected to a first drainage pipe 20, and a second booster pump 21 is configured on the first drainage pipe 20.

[0029] The tail end of the first diversion pipe 20 is connected to the interior of the sedimentation tank 7. The bottom of the sedimentation tank 7 is connected to the slag discharge port 6, and the side of the sedimentation tank 7 is provided with a second pump body 9.

[0030] One end of the second pump body 9 is connected to an extraction pipe, which is connected to the sedimentation tank 7 and interconnected. The other end of the second pump body 9 is connected to a main flow pipe 17. The bottom of the main flow pipe 17 has evenly distributed branch outlets 16. The main flow pipe 17 is equipped with a first booster pump 18. Two sets of filter plates 15 are arranged in the filter box 10. An activated carbon layer 14 is distributed in the lower part of the filter box 10.

[0031] Furthermore, valves are installed on each pipe, the first diversion pipe 20, the main flow pipe 17, etc., to facilitate the opening and closing of the flow.

[0032] The rear of the further stationary box 13 is equipped with a battery, and the cover 12 contains wiring for powering the ultraviolet germicidal lamp 24. The wiring interface is located on the top outer wall, and the interface is sealed and waterproofed using existing technology.

[0033] Working principle: First, wastewater enters from the top of the grit chamber 2. Large suspended particles, such as paper and plastic, are intercepted at the grit filter plate 4. The first pump 5 is started to extract the treated water from the grit chamber 2. Under the guidance of the first diversion pipe 20, the water reaches the sedimentation tank 7 for sedimentation. The sedimentation can be observed through the observation window 22. During sedimentation, the working motor 19 can be started to drive the stirring shaft to rotate. After sedimentation, the sediment can be discharged at the slag discharge port 6. Then, the second pump 9 is started to extract the remaining water. The water is diverted through the main flow pipe 17 and then evenly distributed through the three branch ports 16 to the inside of the filter box 10. The water is first filtered by the filter plate 15, then filtered by the activated carbon layer 14, and finally discharged at the outlet 11. When draining at the outlet 11, the water flows to the stilling tank 13 for temporary storage. When still, the ultraviolet germicidal lamp 24 is used for sterilization. Finally, the water is drained at the drain port on the side of the stilling tank 13.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A composite multi-stage filtration wastewater treatment device, comprising a fixed base plate (1), a bar screen (2), a sedimentation tank (7), and a filter box (10), characterized in that: A sedimentation zone (8) is formed at the bottom of the sedimentation tank (7). An observation window (22) is fixed on the front end of the sedimentation tank (7). A ramp plate (3) is fixed at the bottom of the grid tank (2). A working motor (19) is installed on the top of the sedimentation tank (7). A stirring shaft is connected to the output end of the working motor (19). An outlet (11) is installed at the bottom of the filter box (10). A stationary box (13) is set at the top of the fixed base plate (1) below the outlet (11). The top of the static box (13) is covered by a cover plate (12). Side plates (25) are fixed on both sides of the bottom of the cover plate (12). Threaded connection grooves (26) are provided in both the side plates (25) and the static box (13). A connecting bolt (27) is connected in the threaded connection groove (26). A pipe connection port (23) for connecting the water outlet (11) is provided on the cover plate (12). An ultraviolet germicidal lamp (24) is provided at the bottom of the cover plate (12) in the front and rear direction of the pipe connection port (23).

2. The wastewater treatment device with composite multi-stage filtration according to claim 1, characterized in that: The static box (13) is equipped with a battery at the back, and the cover plate (12) contains wiring for powering the ultraviolet germicidal lamp (24).

3. The wastewater treatment device with composite multi-stage filtration according to claim 1, characterized in that: The ultraviolet germicidal lamps (24) are symmetrically distributed about the central axis of the cover plate (12), and the side plates (25) are symmetrically distributed about the central axis of the cover plate (12).

4. The wastewater treatment device with composite multi-stage filtration according to claim 1, characterized in that: The connecting bolt (27) and the threaded connecting groove (26) form a threaded connection, and a drain outlet is installed on the lower side of the stationary box (13).

5. A composite multi-stage filtration wastewater treatment device according to claim 1, characterized in that: A grid filter plate (4) is installed at the upper position inside the grid pool (2), and the left side height of the ramp plate (3) is greater than the right side height.

6. The wastewater treatment device with composite multi-stage filtration according to claim 1, characterized in that: A first pump body (5) is provided on the side of the grid pool (2). One end of the first pump body (5) is connected to a pipe that extends into the interior of the grid pool (2). The other end of the first pump body (5) is connected to a first drainage pipe (20). A second booster pump (21) is provided on the first drainage pipe (20).

7. A composite multi-stage filtration wastewater treatment device according to claim 6, characterized in that: The tail end of the first drainage pipe (20) is connected to the interior of the sedimentation tank (7). The bottom of the sedimentation tank (7) is connected to the slag discharge port (6). The side of the sedimentation tank (7) is provided with a second pump body (9).

8. A composite multi-stage filtration wastewater treatment device according to claim 7, characterized in that: One end of the second pump body (9) is connected to an extraction pipe, which is connected to the sedimentation tank (7) and communicates with it. The other end of the second pump body (9) is connected to a main flow pipe (17). The bottom of the main flow pipe (17) is evenly distributed with branch outlets (16). The main flow pipe (17) is equipped with a first booster pump (18). Two sets of filter plates (15) are arranged in the filter box (10). An activated carbon layer (14) is distributed in the lower part of the filter box (10).

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