Floating object filtering device for sewage treatment

Abstract

The utility model relates to a floating object filtering device for sewage treatment. Comprising a primary filtering device, a lifting device and a water filtering device, the primary filtering device comprises a primary filtering lower box body and a primary filtering upper box body, oblique primary filtering screens are arranged in the two box bodies, a primary filtering hopper which is in butt joint with a floating object discharge port of the sewage pool is arranged on the side part of the primary filtering upper box body, a primary filtering conical bottom is arranged at the bottom of the primary filtering lower box body, and a secondary filtering conical bottom is arranged at the bottom of the primary filtering conical bottom; an exhaust assembly is arranged at the side part of the primary filtering upper box body, and an air supply assembly is arranged at the top; the lifting device comprises a top box body with a discharge port and a bottom box body with a drainage pipeline, a lifting pipeline is arranged between the top box body and the bottom box body, a lifting chain plate is mounted in the lifting pipeline, and an inlet of the bottom box body is in butt joint connection with an outlet of the primary filtering device; the water filtering device comprises a water filtering box body with a water filtering conical bottom at the bottom, and an exhaust assembly is arranged on the side portion of the water filtering box body. The floating object collecting and processing efficiency is improved, manual intervention is not needed, harmful gas gathering is avoided, the water content of floating objects is reduced, and the floating objects can be rapidly transferred.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment facilities, and in particular relates to a floating object filtering device for sewage treatment. Background Art

[0002] During the sewage treatment process, a common pre-process involves removing large floating debris from the sewage surface. This includes large pieces of garbage, tree branches, and animal and plant debris. After removing these debris, subsequent treatment involves filtering the water to remove suspended solids and adding chemicals for precipitation. Floating debris is typically handled by scraping the pool to a central location, where it is then salvaged using a combination of manual labor and mechanical tools.

[0003] The aforementioned methods for handling floating debris suffer from low efficiency and the need for manual intervention. Furthermore, some organic floating debris, such as plant and animal debris, large pieces of food, and grease residue, can produce harmful gases due to fermentation, potentially posing a risk of personal injury to personnel involved in handling them. Furthermore, existing salvage methods are not conducive to the rapid removal of floating debris, and the recovered debris has a high water content. Nearby stacking can also exacerbate the aforementioned harmful gas problem. Therefore, there is a need to develop a floating debris filtration device that does not require manual intervention to address these technical issues. Utility Model Content

[0004] The purpose of the utility model is to provide a floating object filtering device for sewage treatment, which improves the collection and treatment efficiency of floating objects, does not require manual intervention and avoids the accumulation of harmful gases, reduces the water content of floating objects and can be quickly transferred.

[0005] The technical solution adopted by the utility model is as follows: a floating object filtering device for sewage treatment, comprising a primary filtering device, a lifting device and a water filtering device; the primary filtering device comprises a primary filtering lower box and a primary filtering upper box, an inclined primary filtering screen is provided inside the two boxes, a primary filtering hopper is provided on the side of the primary filtering upper box and is connected to the floating object discharge outlet of the sewage pool, a primary filtering conical bottom is provided at the bottom of the primary filtering lower box, an exhaust assembly is provided on the side of the primary filtering upper box, and an air supply assembly is provided on the top; the lifting device comprises a top box with a discharge port, a bottom box with a drainage pipe, a lifting pipe is provided between the top box and the bottom box, a lifting chain plate is installed inside the lifting pipe, and the inlet of the bottom box is connected to the outlet of the primary filtering device; the water filtering device comprises a water filtering box with a water filtering conical bottom at the bottom, an exhaust assembly is provided on the side of the water filtering box, and also comprises a receiving box and a water filtering basket located at the bottom thereof, the top of the water filtering basket is detachably connected to the bottom of the receiving box, and the water filtering basket is placed inside the water filtering box.

[0006] Preferably, a detachable primary filter side box plate is installed on the side of the primary filter lower box body, and after the primary filter side box plate is removed, the middle and lower part of the primary filter screen is exposed.

[0007] Preferably, the exhaust component of the primary filter device includes a primary filter side cover box installed on the side of the primary filter upper box body, an exhaust duct is provided in the middle of the primary filter side cover box, and a primary filter exhaust fan is installed in the exhaust duct; the air supply component of the primary filter device includes a primary filter top cover box installed on the top of the primary filter upper box body, an induced air duct is provided in the middle of the primary filter top cover box, and a primary filter induced air fan is installed in the induced air duct.

[0008] Preferably, the exhaust assembly of the water filter device includes a water filter side cover box installed on the side of the water filter box body, an exhaust duct is installed in the middle of the water filter side cover box, and a water filter exhaust fan is installed in the exhaust duct.

[0009] Preferably, a horizontal slide is installed at the bottom of the receiving box, and a horizontal slide rail is installed at the top of the water filter basket, and the slide rail slides horizontally into the slide.

[0010] Preferably, a forklift collar is installed on the side of the receiving box, and a lifting lug is installed on the top of the receiving box.

[0011] Preferably, a lower roller is installed inside the bottom box body, an upper roller is installed inside the top box body, a lifting chain plate is installed between the lower roller and the upper roller, and a lifting motor for driving the upper roller is installed outside the top box body.

[0012] Preferably, a discharge hose is installed on the discharge port, and the lower part of the discharge hose is located inside the receiving box.

[0013] Preferably, a water collecting tank is further included, and drain ports are provided at the bottom of the primary filtration conical bottom and the water filtration conical bottom, and the water collecting tank is located below the drain port and the lower end port of the drainage pipe.

[0014] The advantages and positive effects of the utility model are:

[0015] This utility model provides a floating debris filtration device for sewage treatment. It filters the sewage to intercept floating debris within it. A lifting device is used to transfer the trapped floating debris to a water filtration device for further filtration, thereby reducing the moisture content of the floating debris. The entire device requires no human intervention and operates automatically, continuously filtering the sewage and transferring the floating debris to a filter tank for storage. This improves the efficiency of floating debris collection and treatment. Since no human intervention is required, labor costs are reduced and personal injury accidents are prevented.

[0016] The primary filtration device is equipped with an exhaust assembly and an air supply assembly, while the water filtration device is also equipped with an exhaust assembly, effectively preventing the accumulation of harmful gases caused by the fermentation of floating matter. Simultaneously, the exhaust and air supply assemblies act on the floating matter through airflow, effectively removing moisture from the floating matter, reducing its moisture content and mitigating the problem of harmful gases generated by the accumulation of floating matter. Furthermore, the floating matter is ultimately collected and stored in the water filter basket. The receiving box and water filter basket are periodically lifted out of the water filter housing and transferred to the next treatment location. Therefore, the present invention accelerates the collection and transfer of floating matter, improving treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the secondary primary filtration device.

[0019] In the picture:

[0020] 1. Sewage tank; 2. Primary filter conical bottom; 3. Primary filter lower box; 4. Primary filter side box plate; 5. Primary filter screen; 6. Primary filter exhaust fan; 7. Floating object discharge port; 8. Primary filter hopper; 9. Primary filter upper box; 10. Primary filter top cover box; 11. Primary filter induced draft fan; 12. Lifting motor; 13. Lifting chain plate; 14. Lifting pipe; 15. Primary filter side cover box; 16. Bottom box; 17. Drain pipe; 18. Top box; 19. Discharge port; 20. Feeding hose; 21. Lifting lugs; 22. Slide; 23. Receiving box; 24. Forklift ring; 25. Slide rail; 26. Water filter basket; 27. Water filter box; 28. Water filter exhaust fan; 29. ​​Water filter conical bottom; 30. Water collection tank. DETAILED DESCRIPTION

[0021] In order to further understand the content, features and effects of the present invention, the following embodiments are given to illustrate in detail.

[0022] See Figure 1 and Figure 2 The floating object filtering device for sewage treatment of the present invention includes a primary filtering device, a lifting device and a water filtering device, wherein the primary filtering device is located in the downstream of the sewage pool 1, receives floating objects and sewage discharged from the sewage pool 1 and provides filtering effect to intercept the floating objects, and the lifting device is used to lift the intercepted floating objects and transfer them to the water filtering device. The water filtering device receives and stores the floating objects, provides water filtering effect, and further reduces the water content. Finally, the floating objects are extracted by the water filtering device and transferred to the downstream for further treatment.

[0023] The primary filtration device consists of a lower primary filtration housing 3 and an upper primary filtration housing 9. Inside these housings are angled primary filtration screens 5. A primary filtration hopper 8 is located on the side of the upper primary filtration housing 9, docking with the floating debris outlet 7 of the sewage tank 1. A conical primary filtration bottom 2 is located at the bottom of the lower primary filtration housing 3, and a floating debris outlet is located at the end of the primary filtration screen 5. As shown in the figure, the main body of the primary filtration device is supported by multiple columns, providing a certain height.

[0024] Sewage tank 1 is equipped with a push assembly for laterally displacing floating debris on the sewage surface. Specifically, the push assembly includes a cyclically movable push plate. During this cyclical movement, the push plate moves laterally along the sewage surface, moving from the front to the rear of sewage tank 1. In this process, the push plate transfers floating debris on the sewage surface toward floating debris outlet 7 and further squeezes and discharges the floating debris from floating debris outlet 7. The floating debris, along with the sewage, enters the primary filter hopper 8 and lands on the primary filter screen 5. The sewage passes through the primary filter screen 5 and enters the primary filter conical bottom 2. The floating debris is trapped above and is then moved toward the rear outlet by squeezing and flushing of the sewage flow.

[0025] Considering the potential for clogging of the primary filter screen 5, in this embodiment, a removable primary filter side panel 4 is mounted on the side of the primary filter lower housing 3. Removal of the panel 4 exposes the lower and middle portion of the primary filter screen 5. Furthermore, the primary filter screen 5 comprises a support frame and a filter plate removably mounted at the bottom of the support frame. If the filter plate becomes clogged, the primary filter side panel 4 is removed, the filter plate is then disassembled and moved outside the housing, the filter holes cleaned, and then reinstalled.

[0026] An exhaust assembly is provided on the side of the primary filter upper box 9 and an air supply assembly is provided on the top. The exhaust assembly is used to exhaust air from the inside of the box to the outside, and the air supply assembly is used to introduce external airflow into the box. Under the action of such airflow, the water vapor in the floating objects intercepted by the primary filter screen 5 is discharged, and at the same time, it can also avoid the problem of accumulation of harmful gases generated by the accumulated floating objects.

[0027] In this embodiment, the exhaust assembly of the primary filter device includes a primary filter side cover box 15 mounted on the side of the primary filter upper housing 9. An exhaust duct is provided in the middle of the primary filter side cover box 15, and a primary filter exhaust fan 6 is installed in the exhaust duct. In this embodiment, the air supply assembly of the primary filter device includes a primary filter top cover box 10 mounted on the top of the primary filter upper housing 9. An induced draft duct is provided in the middle of the primary filter top cover box 10, and a primary filter induced draft fan 11 is installed in the induced draft duct.

[0028] The lifting device includes a top box body 18 with a discharge port 19 and a bottom box body 16 with a drainage pipe 17. A lifting pipe 14 is provided between the top box body 18 and the bottom box body 16. A lifting chain plate 13 is installed inside the lifting pipe 14. The inlet of the bottom box body 16 is docked with the outlet of the primary filtration device.

[0029] In this embodiment, a lower roller is mounted within the bottom housing 16, an upper roller is mounted within the top housing 18, a lifting chain plate 13 is mounted between the lower and upper rollers, and a lifting motor 12, which drives the upper roller, is mounted outside the top housing 18. Lifting chain plate 13 comprises a conveyor chain and a filter plate mounted thereon. During the circulation of lifting chain plate 13, floating matter that enters the bottom housing 16 is supported and transferred upward by the filter plate. After reaching a high position, the filter plate flips over, and the floating matter falls under the action of gravity into the discharge port 19 and is discharged. During this process, moisture contained in the floating matter falls and collects within the bottom housing 16, ultimately leaking downward.

[0030] The water filtration device includes a water filtration box 27 with a conical filter base 29 at the bottom. An exhaust assembly is installed on the side of the water filtration box 27. It also includes a receiving box 23 and a water filter basket 26 at its bottom. The top of the water filter basket 26 is detachably connected to the bottom of the receiving box 23, and the water filter basket 26 is placed inside the water filtration box 27. Floating matter discharged from the discharge port 19 of the lifting device falls into the receiving box 23 and ultimately enters the water filter basket 26 for storage. During storage, the water in the floating matter passes through the filter holes of the water filter basket 26 and falls into the conical filter base 29. As shown in the figure, the main body of the water filtration device is supported by multiple columns, providing a certain height.

[0031] The purpose of setting up the exhaust component is to discharge the water vapor and harmful gases generated in the internal accumulated floating objects. In this embodiment, the exhaust component of the water filtration device includes a water filtration side cover box installed on the side of the water filtration box body 27, an exhaust duct is installed in the middle of the water filtration side cover box, and a water filtration exhaust fan 28 is installed in the exhaust duct.

[0032] In this embodiment, a horizontal slide 22 is installed at the bottom of the receiving box 23, and a horizontal slide rail 25 is installed at the top of the water filter basket 26. The slide rail 25 slides horizontally into the slide 22. Specifically, the slide 22 can be made of C-shaped steel, and the slide rail 25 can be square steel of matching dimensions. In this way, when the receiving box 23 and the water filter basket 26 need to be combined into one, the slide rail 25 is slid into the slide 22. When the two need to be disconnected, the slide rail 25 is slid out of the slide 22.

[0033] In this embodiment, forklift collars 24 are installed on the sides of the receiving box 23, and lifting lugs 21 are installed on the top of the receiving box 23. Therefore, the receiving box 23 and the filter basket 26 can be separated from and attached to the filter box body 27 in two ways: using a forklift for lifting and transfer, in which case the left and right fork arms of the forklift are inserted into the two forklift collars 24 shown in the figure, and then the receiving box 23 and the filter basket 26 can be lifted and transferred; using a crane for lifting and transfer, in which case the crane hook is connected to the lifting lugs 21 shown in the figure, and then the receiving box 23 and the filter basket 26 can be lifted and transferred.

[0034] In this embodiment, a discharge hose 20 is mounted on the discharge port 19 of the lifting device. The lower portion of the discharge hose 20 is located within the receiving box 23. The discharge hose 20 can be a rubber hose. The discharge hose 20 is provided to guide the falling floating objects into the receiving box 23. At the same time, the discharge hose 20 does not affect the lifting and transfer operations of the receiving box 23 and the water filter basket 26.

[0035] In this embodiment, a water collection tank 30 is also included. A drain port is provided at the bottom of the primary filtration conical bottom 2 and the water filtration conical bottom 29. The water collection tank 30 is located below the drain port and the lower end of the drainage pipe 17. The filtered sewage discharged from each device enters the water collection tank 30 and is transferred to the rear treatment facilities such as the dosing sedimentation tank.

[0036] How to run:

[0037] The collected sewage enters the sewage tank 1. When the sewage in the sewage tank 1 overflows, it is discharged from the floating object discharge port 7 into the primary filter hopper 8. During this process, the push assembly configured in the sewage tank 1 pushes the floating objects on the surface of the sewage backward, and eventually the floating objects and sewage enter the primary filter hopper 8 simultaneously. The sewage in the primary filter device passes through the primary filter screen 5 and flows downward into the sump 30. The floating objects are filtered and trapped at the top. Under the action of squeezing and water scouring, they are transferred to the rear outlet and enter the bottom box 16 of the lifting device. The lifting device lifts the floating objects and transfers them to the receiving box 23. During this process, the water in the floating objects is discharged downward through the drainage pipe 17 into the sump 30.

[0038] The floating objects entering the receiving box 23 further fall into the water filter basket 26 , and the water contained therein passes through the water filter basket 26 and enters the water filter conical bottom 29 , and finally discharges into the water collection tank 30 ;

[0039] When the floating objects in the water filter basket 26 accumulate to a certain amount, the receiving box 23 and the water filter basket 26 are lifted upward as a whole, and the water filter basket 26 is completely removed from the water filter box body 27. The water filter basket 26 can then be transferred to the next process, such as the floating object yard. After the water filter basket 26 is disconnected from the receiving box 23, the floating objects inside are dumped out. After that, the receiving box 23 and the water filter basket 26 are reassembled and reinstalled into the water filter box body 27.

Claims

1. A floating object filtering device for sewage treatment, characterized by: The invention comprises a primary filter device, a lifting device and a water filter device; the primary filter device comprises a primary filter lower box (3) and a primary filter upper box (9); an inclined primary filter screen (5) is provided inside the two boxes; a primary filter hopper (8) is provided on the side of the primary filter upper box (9) and is connected to the floating object discharge port (7) of the sewage pool (1); a primary filter conical bottom (2) is provided at the bottom of the primary filter lower box (3); an exhaust assembly is provided on the side of the primary filter upper box (9), and an air supply assembly is provided on the top; the lifting device comprises a top box (18) with a discharge port (19), a bottom box (16) with a drainage pipe (17), A lifting pipe (14) is provided between the top box (18) and the bottom box (16), a lifting chain plate (13) is installed inside the lifting pipe (14), and the inlet of the bottom box (16) is docked with the outlet of the primary filtering device; the water filtering device comprises a water filtering box (27) with a water filtering conical bottom (29) at the bottom, an exhaust assembly is provided on the side of the water filtering box (27), and also comprises a receiving box (23) and a water filtering basket (26) located at the bottom thereof, the top of the water filtering basket (26) is detachably connected to the bottom of the receiving box (23), and the water filtering basket (26) is placed inside the water filtering box (27).

2. The floating object filtering device for sewage treatment according to claim 1, characterized in that: A detachable primary filter side box plate (4) is installed on the side of the primary filter lower box body (3); after the primary filter side box plate (4) is disassembled, the middle and lower part of the primary filter screen (5) is exposed.

3. The floating object filtering device for sewage treatment according to claim 2, characterized in that: The exhaust assembly of the primary filter device comprises a primary filter side cover box (15) installed on the side of the primary filter upper box (9), an exhaust duct is provided in the middle of the primary filter side cover box (15), and a primary filter exhaust fan (6) is installed in the exhaust duct; the air supply assembly of the primary filter device comprises a primary filter top cover box (10) installed on the top of the primary filter upper box (9), an induced air duct is provided in the middle of the primary filter top cover box (10), and a primary filter induced air fan (11) is installed in the induced air duct.

4. The floating object filtering device for sewage treatment according to claim 3, characterized in that: The exhaust assembly of the water filter device comprises a water filter side cover box installed on the side of the water filter box body (27), an exhaust duct is installed in the middle of the water filter side cover box, and a water filter exhaust fan (28) is installed in the exhaust duct.

5. The floating object filtering device for sewage treatment according to claim 4, characterized in that: A horizontal slideway (22) is installed at the bottom of the receiving box (23), and a horizontal slide rail (25) is installed on the top of the water filter basket (26). The slide rail (25) slides horizontally into the slideway (22).

6. The floating object filtering device for sewage treatment according to claim 5, characterized in that: A forklift collar (24) is installed on the side of the receiving box (23), and a lifting lug (21) is installed on the top of the receiving box (23).

7. The floating object filtering device for sewage treatment according to claim 6, characterized in that: A lower rotating roller is installed inside the bottom box (16), an upper rotating roller is installed inside the top box (18), a lifting chain plate (13) is installed between the lower rotating roller and the upper rotating roller, and a lifting motor (12) for driving the upper rotating roller is installed outside the top box (18).

8. The floating object filtering device for sewage treatment according to claim 7, characterized in that: A feeding hose (20) is installed on the discharge port (19), and the lower part of the feeding hose (20) is located inside the receiving box (23).

9. The floating object filtering device for sewage treatment according to claim 8, characterized in that: It also includes a water collecting trough (30), and a water drain port is provided at the bottom of the primary filter conical bottom (2) and the water filter conical bottom (29), and the water collecting trough (30) is located below the water drain port and the lower end of the drainage pipe (17).

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