Sewage preliminary filtering device with sludge separation tank

Abstract

The utility model relates to sewage treatment technical field discloses sewage primary filter device with sediment separation tank, including filter tank, the outer wall front side of filter tank is fixedly connected with protection shell, the inside fixedly connected with motor no.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater primary filtration device with a sediment separation tank. Background Technology

[0002] Sediment separation tanks are core components of wastewater treatment designed based on the principle of gravity settling. They are mainly used to separate denser solid particles from wastewater. With the acceleration of industrialization and urbanization, wastewater discharge continues to rise, and sediment separation tanks are no longer effective in treating wastewater. Therefore, a preliminary filtration device for wastewater is installed in the sediment separation tank to improve separation efficiency. However, traditional wastewater primary filtration devices mostly use a single filter screen and a simple sedimentation tank. When faced with complex compositions, including not only a large amount of suspended solids, but also oil, colloids, and some dissolved pollutants, they cannot be effectively separated and filtered.

[0003] Existing filter screen devices, while capable of intercepting some larger particles of impurities in wastewater, experience a sharp decrease in wastewater flow once the screen becomes clogged. Furthermore, ordinary filters struggle to effectively intercept smaller particles and colloidal substances. Over time, the separation tank accumulates debris, requiring manual cleaning. Current market solutions introduce microbubbles into the water, which adhere to impurities, causing them to rise to the surface and form scum, which is then removed by a scraper. However, this method clogs some debris, hindering effective removal and slowing wastewater flow, thus reducing efficiency. Moreover, prolonged use of the separation tank leads to the formation of adherent sediment, which is also difficult to remove effectively. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a sewage primary filtration device with a sediment separation tank, which aims to improve the problem in the prior art where garbage clogs the filtration device, resulting in slow sewage flow, and garbage inside the separation tank forms adhering sediment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wastewater primary filtration device with a sediment separation tank, comprising a filter tank, a protective shell fixedly connected to the front side of the outer wall of the filter tank, a motor I fixedly connected inside the protective shell, a rotating shaft fixedly connected to the output end of the motor I, gears fixedly connected to the outer wall of the rotating shaft, chains meshing with the outer walls of multiple gears, a grid plate fixedly connected to the outer wall of the chains, a second motor fixedly connected inside the protective shell, a spiral conveying column fixedly connected to the output end of the second motor, a transport bucket fixedly connected to the top left side of the filter tank, and a backflushing structure fixedly connected to the right side of the outer wall of the filter tank, the backflushing structure being used to clean the sediment at the bottom of the filter tank.

[0006] As a further description of the above technical solution:

[0007] The backflush structure includes a backflush box, the left side of the outer wall of the backflush box is fixedly connected to the filter tank, the right side of the outer wall of the backflush box is connected to an air inlet pipe, the right side of the inside of the backflush box is fixedly connected to an air compressor, the output end of the air compressor is fixedly connected to an air storage tank, the bottom of the air storage tank is connected to an air supply pipe, the top ends of the two air supply pipes are connected to a connecting pipe, the left side of the outer wall of the connecting pipe is connected to a nozzle, and the outer walls of the two nozzles are connected to an output pipe.

[0008] As a further description of the above technical solution:

[0009] The top and front sides of the filter tank are fixedly connected to support plates, and the front sides of the outer walls of the two protective shells are provided with heat dissipation vents.

[0010] As a further description of the above technical solution:

[0011] A filter plate is fixedly connected inside the filter tank, and a collection box is fixedly connected to the rear side of the outer wall of the filter tank.

[0012] As a further description of the above technical solution:

[0013] The collection box has a filter plate two fixedly connected inside, and a box door is slidably connected to the right side of the outer wall of the collection box.

[0014] As a further description of the above technical solution:

[0015] A handle is fixedly connected to the right side of the outer wall of the box door, and a feed inlet is opened on the top of the collection box.

[0016] As a further description of the above technical solution:

[0017] A water pump is fixedly connected to the bottom of the collection box, and a water delivery pipe is fixedly connected to the output end of the water pump.

[0018] As a further description of the above technical solution:

[0019] The top of the backflush box is fixedly connected to a sealing door, and the outer wall of the transport barrel has a discharge port on the rear side.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the motor first drives the rotating shaft to rotate, thereby rotating the gear on the rotating shaft, and then the chain and the grid plate rotate. The grid bars on the grid plate intercept the garbage and make it rotate upward with the grid plate. When it reaches the transport bin, it falls into the transport bin. Then, the garbage is transported to the collection point by the spiral conveyor column.

[0022] 2. In this utility model, the air compressor is started to draw air into the backflush box through the air inlet pipe, and after compression, it enters the air storage tank. Then, when it is necessary to clean the bottom of the filter tank, the high-pressure air reaches the connecting pipe through the air delivery pipe, and then the air is sent to the nozzle through the connecting pipe, and then sprayed out through the output pipe. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the wastewater primary filtration device with a sediment separation tank proposed in this utility model.

[0024] Figure 2 This is a top perspective view of the wastewater primary filtration device with a sediment separation tank proposed in this utility model;

[0025] Figure 3 This is a structural diagram of the transport tank of the wastewater primary filtration device with a sediment separation tank proposed in this utility model;

[0026] Figure 4 This is a top view of a partial structure of the filter tank of the wastewater primary filtration device with a sediment separation tank proposed in this utility model.

[0027] Figure 5 This is a rear perspective view of the wastewater primary filtration device with a sediment separation tank proposed in this utility model.

[0028] Legend:

[0029] 1. Filter tank; 2. Backflush structure; 201. Backflush box; 202. Air compressor; 203. Air tank; 204. Air supply pipe; 205. Connecting pipe; 206. Output pipe; 207. Nozzle; 208. Air inlet pipe; 3. Protective shell; 4. Motor 1; 5. Shaft; 6. Gear; 7. Chain; 8. Grating plate; 9. Transport bucket; 10. Motor 2; 11. Screw conveyor column; 12. Support plate; 13. Heat dissipation vent; 14. Filter plate 1; 15. Collection box; 16. Filter plate 2; 17. Box door; 18. Handle; 19. Water pump; 20. Water supply pipe; 21. Discharge port; 22. Sealing door; 23. Feed inlet. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 1 - Appendix Figure 3This utility model provides an embodiment of a wastewater primary filtration device with a sediment separation tank, including a filter tank 1. A protective shell 3 is sturdily fixed to the front side of the outer wall of the filter tank 1. The main function of the protective shell 3 is to protect the internal components from external damage. Inside the protective shell 3, a motor 4 is fixedly connected. The output end of the motor 4 is reliably fixedly connected to a rotating shaft 5. A gear 6 is fixedly connected to the outer wall of the rotating shaft 5. The outer walls of multiple such gears 6 are connected to a chain 7 through meshing. A grid plate 8 is fixedly connected to the outer wall of the chain 7. The function of the grid plate 8 is to filter larger impurities in the wastewater. In addition, another motor 10 is fixedly connected inside the protective shell 3. The output end of the motor 10 is also fixedly connected to a spiral conveying column 11. The main function of the spiral conveying column 11 is to effectively transport the separated sediment. A transport bucket 9 is fixedly connected to the top left side of the filter tank 1. A backflushing structure 2 is used to clean the sediment at the bottom of the filter tank 1.

[0032] Specifically, motor 4 drives shaft 5 to rotate, which in turn drives gear 6 to rotate, causing chain 7 to move. The bar screen 8 moves accordingly, and sewage enters filter tank 1. The bar screen 8 intercepts larger solid impurities, achieving preliminary filtration and lifting the sediment upwards. Motor 2 10 is also fixed inside the protective shell 3, and its output end is connected to the spiral conveyor column 11. The transport bucket 9 is fixed on the top left side of filter tank 1. The sediment lifted by bar screen 8 falls into the transport bucket 9. Motor 2 10 drives the spiral conveyor column 11 to rotate, conveying the sediment out.

[0033] Please see the appendix Figure 2 - Appendix Figure 4 The backflush structure 2 includes a backflush box 201. The left side of the outer wall of the backflush box 201 is tightly connected to the filter tank 1 by a fixed connection to ensure its stability and sealing. On the right side of the outer wall of the backflush box 201, an air inlet pipe 208 is provided for introducing external air. An air compressor 202 is fixedly connected to the right side of the inside of the backflush box 201. The main function of the air compressor 202 is to provide compressed air. The output end of the air compressor 202 is connected to an air storage tank 203 by a fixed connection. The function of the air storage tank 203 is to store compressed air. The bottom of the air storage tank 203 is provided with an air delivery pipe 204. There are two air delivery pipes 204. The top ends of the two air delivery pipes 204 are connected to each other by a connecting pipe 205. A nozzle 207 is connected to the left side of the outer wall of the connecting pipe 205. The outer wall of each nozzle 207 is connected to an output pipe 206.

[0034] Specifically, the right side of the outer wall of the backflush box 201 is connected to the air inlet pipe 208, which is used to introduce external air to provide an air source for backflush. After the air compressor 202 is started, it can compress the incoming air and then deliver the compressed air to the air storage tank 203, which is fixedly connected to the output end. The bottom of the air storage tank 203 is connected to two air supply pipes 204. The air supply pipes 204 deliver the compressed air in the air storage tank 203 to the connecting pipe 205 connected at the top. The left side of the outer wall of the connecting pipe 205 is connected to the nozzle 207. The compressed air reaches the nozzle 207 through the connecting pipe 205. The outer wall of each nozzle 207 is connected to the output pipe 206, and then the compressed air is sprayed out through the output pipe 206.

[0035] Please see the appendix Figure 1 - Appendix Figure 2 Support plates 12 are firmly fixedly connected to the top front and rear sides of the filter tank 1. These support plates 12 provide stable structural support for the filter tank 1. At the same time, heat dissipation vents 13 are carefully opened on the front side of the outer wall of the two protective shells 3. These heat dissipation vents 13 effectively dissipate the internal heat. Filter plate 14 is firmly fixedly connected inside the filter tank 1. Filter plate 14 prevents garbage from floating and keeps the garbage on filter plate 14. Collection box 15 is also firmly fixedly connected to the rear side of the outer wall of the filter tank 1. Collection box 15 is used to collect the separated material. Filter plate 26 is also fixedly connected inside collection box 15. Filter plate 26 further ensures the purity of the material. The discharge port 21 opened on the transport bucket 9 is the outlet for garbage transportation.

[0036] Specifically, when working for a long time, the heat dissipation vent 13 can be used to dissipate heat inside the protective shell 3, while the filter plate 14 prevents the garbage from sinking and keeps the garbage at a height that can be transported. After the garbage passes through the spiral conveyor column 11, it enters the collection box 15 and finally stays on the filter plate 16.

[0037] Please see the appendix Figure 4 - Appendix Figure 5 A handle 18 is securely fixed to the right side of the outer wall of the box door 17 for easy operation. The handle 18 facilitates opening and closing the box door 17. Meanwhile, a feed inlet 23 is provided at the top of the collection box 15 to ensure that the material can smoothly enter the collection box 15. A high-efficiency water pump 19 is securely fixed to the bottom of the collection box 15 to ensure that the water in the collection box 15 is returned to the filter tank 1. The output end of the water pump 19 is reliably fixed to a water pipe 20. The sealing door 22 has good sealing performance and can effectively prevent gas leakage.

[0038] Specifically, when the garbage collection bin 15 is full, the bin door 17 can be opened by pulling the handle 18 to clean the garbage inside. Then the feed inlet 23 on the collection bin 15 can effectively allow the garbage to enter. When the garbage is on the filter plate 16, the water droplets that slide off enter the bottom of the collection bin 15. Then the water pump 19 is used to pump the water from the bottom and transport it to the inside of the filter tank 1 through the water pipe 20.

[0039] Working principle: First, start motor 4. The rotation of motor 4 drives the rotating shaft 5 to rotate. Then, the gear 6 on the rotating shaft 5 drives the chain 7 to move through multiple gears 6. This drives the grid plate 8 to rotate. The grid bars on the grid plate 8 intercept the suspended solids in the sewage. Then, under the action of motor 4, the solids are brought into the transport tank 9. Then, motor 10 starts the internal spiral conveying column 11. The rotation of the spiral blades transports the material axially. The waste is then transported to the collection point. This achieves the simultaneous filtration and removal of waste from the sewage, preventing waste from accumulating in the filter tank 1, which would increase water resistance and reduce filtration efficiency.

[0040] During prolonged filtration, some waste accumulates inside the filter tank 1. At this point, the air compressor 202 inside the backflush box 201 compresses the air through the air inlet pipe 208 and then enters the air storage tank 203. The high-pressure gas is then transported to the connecting pipe 205 through the air delivery pipe 204. The high-pressure gas is then delivered to the output pipe 206 through the nozzle 207 connected to the connecting pipe 205 and sprayed out. During backflush, the high-speed fluid impact removes the adhering sediment from the bottom of the filter tank 1, making the filtration more precise. This process can also be started during operation, reducing the time spent on manual cleaning and improving efficiency.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 wastewater primary filtration device with a sedimentation separation tank, comprising a filter tank (1), characterized in that: A protective shell (3) is fixedly connected to the front side of the outer wall of the filter tank (1). A motor (4) is fixedly connected inside the protective shell (3). A rotating shaft (5) is fixedly connected to the output end of the motor (4). A gear (6) is fixedly connected to the outer wall of the rotating shaft (5). A chain (7) is meshed with the outer walls of multiple gears (6). A grid plate (8) is fixedly connected to the outer wall of the chain (7). A motor (10) is fixedly connected inside the protective shell (3). A spiral conveying column (11) is fixedly connected to the output end of the motor (10). A transport bucket (9) is fixedly connected to the top left side of the filter tank (1). A backflushing structure (2) is fixedly connected to the right side of the outer wall of the filter tank (1). The backflushing structure (2) is used to clean the bottom sediment of the filter tank (1).

2. The wastewater primary filtration device with a sedimentation separation tank according to claim 1, characterized in that: The backflush structure (2) includes a backflush box (201). The left side of the outer wall of the backflush box (201) is fixedly connected to the filter tank (1). The right side of the outer wall of the backflush box (201) is connected to an air inlet pipe (208). The right side of the inside of the backflush box (201) is fixedly connected to an air compressor (202). The output end of the air compressor (202) is fixedly connected to an air storage tank (203). The bottom of the air storage tank (203) is connected to an air supply pipe (204). The top ends of the two air supply pipes (204) are connected to a connecting pipe (205). The left side of the outer wall of the connecting pipe (205) is connected to a nozzle (207). The outer walls of the two nozzles (207) are connected to an output pipe (206).

3. The wastewater primary filtration device with a sedimentation separation tank according to claim 1, characterized in that: The filter tank (1) is fixedly connected to the front and rear sides of the top, and the two protective shells (3) are provided with heat dissipation vents (13) on the front side of their outer walls.

4. The wastewater primary filtration device with a sedimentation separation tank according to claim 1, characterized in that: A filter plate (14) is fixedly connected inside the filter tank (1), and a collection box (15) is fixedly connected to the rear side of the outer wall of the filter tank (1).

5. The wastewater primary filtration device with a sedimentation separation tank according to claim 4, characterized in that: The collection box (15) is fixedly connected to the inside of the filter plate (16), and the outer wall of the collection box (15) is slidably connected to the right side of the box door (17).

6. The wastewater primary filtration device with a sedimentation separation tank according to claim 5, characterized in that: A handle (18) is fixedly connected to the right side of the outer wall of the box door (17), and a feed inlet (23) is opened on the top of the collection box (15).

7. The wastewater primary filtration device with a sedimentation separation tank according to claim 5, characterized in that: A water pump (19) is fixedly connected to the bottom of the collection box (15), and a water delivery pipe (20) is fixedly connected to the output end of the water pump (19).

8. The wastewater primary filtration device with a sedimentation separation tank according to claim 2, characterized in that: The top of the backflush box (201) is fixedly connected to a sealing door (22), and the rear side of the outer wall of the transport barrel (9) is provided with a discharge port (21).

Images