Novel efficient biological aerated filter

Abstract

The utility model provides a novel efficient biological aerated filter, which relates to the technical field of sewage treatment and comprises a filter body, a coarse filter plate and a fine filter plate are mounted in parallel in the middle of the filter body, a coarse filter tank is formed on one side of the coarse filter plate, an aeration tank is formed on one side of the fine filter plate, a cleaning mechanism is mounted in the coarse filter tank, and the cleaning mechanism is mounted in the aeration tank. A top frame is arranged at the top end of the cleaning mechanism, an aeration pipe is arranged in the aeration tank, a top frame is mounted at the top end of the tank body, a moving mechanism is mounted on the top frame, a fixing frame is mounted at the bottom end of the moving mechanism, and the fixing frame is connected with the cleaning mechanism. Through a multi-layer filtering and automatic sundry cleaning mechanism, sundry accumulation is effectively avoided, the sewage filtering and treatment efficiency is improved, the treatment environment is kept clean and tidy, and secondary pollution is prevented.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a novel high-efficiency aerated biological filter. Background Technology

[0002] Biologically aerated filters (BAF) are a novel biofilm wastewater treatment process developed in Europe and America in the late 1980s. They saw significant development in the early 1990s, with some reaching scales of hundreds of thousands of tons per day. They have evolved to remove nitrogen and phosphorus. Compared to conventional activated sludge processes, BAFs offer advantages such as high organic loading capacity, small footprint, no sludge bulking, high oxygen transfer efficiency, and good effluent quality. Currently, BAFs are widely used in wastewater treatment. A BAF involves attaching microorganisms to a carrier or filter media, where their metabolism decomposes organic matter in the wastewater.

[0003] Existing technology, patent number CN211871533U, discloses an aerated biological filter. By setting up interconnected air guide pipes and aeration pipes, combined with backwashing, it forms a combined air-water cleaning system that requires no manual intervention, effectively and efficiently cleaning waste and biological waste filter membranes. However, in practical use, while this existing technology can effectively and efficiently clean waste and biological waste filter membranes, it easily leaves behind non-biodegradable plastics and other debris, leading to accumulation. This not only occupies a large volume of the filter but also affects wastewater treatment efficiency, thus requiring further improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a new type of high-efficiency aerated biological filter.

[0005] This utility model is achieved through the following technical solution:

[0006] A novel high-efficiency aerated biological filter includes a tank body, in which a coarse filter plate and a fine filter plate are installed in parallel in the middle of the tank body. A coarse filter groove is formed on one side of the coarse filter plate, and an aeration groove is formed on one side of the fine filter plate. A cleaning mechanism is installed in the coarse filter groove, and a top frame is provided at the top of the cleaning mechanism. An aeration pipe is provided in the aeration groove.

[0007] As can be seen, in the above technical solution, sewage enters the coarse filter tank, is filtered, and then seeps into the aeration tank. It is aerated and oxygenated through the aeration pipes, and the organic matter in the sewage is decomposed by the internal microorganisms before being discharged. The debris filtered out in the coarse filter tank accumulates on the cleaning mechanism. After the cleaning mechanism is operated, the accumulated debris inside can be lifted and then dumped outside the tank, thereby achieving automatic cleaning, avoiding the accumulation of debris, improving the filtration effect of sewage, and thus improving the sewage treatment efficiency.

[0008] Optionally, in one possible implementation, a filter groove is formed between the coarse filter plate and the fine filter plate, and sand and gravel are placed in the filter groove. It can be seen that in the above technical solution, the sand and gravel can further enhance the filtration effect, allowing wastewater to permeate through; the coarse filter plate performs coarse filtration to ensure the permeation rate; and the fine filter plate further enhances the filtration effect.

[0009] Optionally, in one possible implementation, the cleaning mechanism includes a hydraulic pump, a hydraulic rod, a connecting frame, a lifting filter plate, and a hydraulic telescopic rod. The hydraulic pump is connected to the hydraulic rod, the connecting frame is mounted at the bottom of the hydraulic rod, the lifting filter plate is hinged to the bottom of the connecting frame, and the hydraulic telescopic rod is hinged between the lifting filter plate and the connecting frame. It can be seen that in the above technical solution, the operation of the hydraulic pump causes the hydraulic rod to extend and retract, which in turn causes the connecting frame to drag the lifting filter plate up and down. This allows debris accumulated on the lifting filter plate in the coarse filter tank to be lifted out of the coarse filter tank. Combined with the extension and retraction of the hydraulic telescopic rod, the lifting filter plate tilts, thereby automatically cleaning the debris to the outside of the tank.

[0010] Optionally, in one possible implementation, the connecting frame is provided with hinge rods at both ends, and hinge frames are symmetrically welded onto the corresponding filter plates. Each hinge rod is connected to its corresponding hinge frame. A baffle is provided at the edge of the lifting filter plate, and a waste discharge port is provided at the end furthest from the hydraulic telescopic rod. It can be seen that, in the above technical solution, by providing baffles at the edge of the lifting filter plate, accumulated debris can be prevented from sliding off the surrounding area, ensuring that the debris slides out from the waste discharge port, thereby preventing the area around the pool from becoming dirty and messy due to falling debris.

[0011] Optionally, in one possible implementation, a top frame is installed at the top of the pool body, a moving mechanism is installed on the top frame, and a fixed frame is installed at the bottom of the moving mechanism. The fixed frame is connected to the cleaning mechanism. It can be seen that in the above technical solution, the moving mechanism moves the fixed frame, thereby moving the cleaning mechanism and ensuring that the waste discharge port of the lifting filter plate is located outside the pool body, preventing debris from falling back into the pool body when it is dumped.

[0012] Optionally, in one possible implementation, the moving mechanism includes a motor, a screw, a slide rail, and a slider. The motor is mounted on a top frame, and the output end of the motor is connected to the screw. A slider that is slidably connected to the slide rail is mounted on the screw, and a fixing frame is mounted on the bottom end of the slider. It can be seen that in the above technical solution, the motor operates, causing the screw to rotate, thereby allowing the slider to move back and forth along the slide rail. This adjusts the position of the bottom lifting filter plate, ensuring that during waste discharge, the tilting of the lifting filter plate completely removes debris from the tank.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, wastewater first enters the coarse filter tank for filtration. The filtered debris accumulates on the cleaning mechanism, which can lift the debris and dump it outside the tank. This effectively prevents the debris from accumulating inside the filter tank, thus preventing the wastewater treatment efficiency from being affected by the large volume occupied by the debris. It also ensures the long-term stable operation and high-efficiency filtration performance of the filter tank.

[0015] The system uses a filter trough with sand and gravel between coarse and fine filter plates. The coarse filter plates perform initial coarse filtration to ensure water permeability, the sand and gravel further filter the water, and the fine filter plates perform fine filtration again. This multi-layer filtration structure significantly improves the filtration effect on wastewater and helps subsequent microbial decomposition of organic matter in the wastewater, thereby improving the overall wastewater treatment quality.

[0016] Meanwhile, the hydraulic pump of the cleaning mechanism drives the hydraulic rod to extend and retract, which in turn drives the connecting frame to lift the filter plate. Combined with the hydraulic extension rod, the filter plate is tilted, which can efficiently clean the debris out of the pool. The baffles on the edge of the filter plate can prevent the debris from slipping and ensure that the debris is discharged from the bottom waste outlet, avoiding the pool area from getting dirty due to debris falling.

[0017] In addition, the moving mechanism at the top of the tank drives the screw to rotate via a motor, causing the slider to move along the slide rail. This moves the fixed frame to adjust the position of the cleaning mechanism, ensuring that the waste discharge port of the lifting filter plate is located outside the tank. This prevents debris from falling back into the tank when it is dumped, effectively preventing secondary pollution and further ensuring the cleanliness and efficiency of the wastewater treatment process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the cleaning mechanism of this utility model.

[0020] Figure 3 This is a schematic diagram of the connection structure between the cleaning mechanism and the moving mechanism of this utility model.

[0021] Figure 4 This is a schematic diagram of the moving mechanism of this utility model.

[0022] In the diagram: 1. Tank body; 2. Coarse filter tank; 3. Aeration tank; 4. Coarse filter plate; 5. Fine filter plate; 6. Cleaning mechanism; 601. Hydraulic pump; 602. Hydraulic rod; 603. Connecting frame; 604. Lifting filter plate; 605. Hydraulic telescopic rod; 7. Top frame; 8. Aeration pipe; 9. Moving mechanism; 901. Motor; 902. Screw; 903. Slide rail; 904. Slider; 10. Fixed frame. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0025] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Example 1:

[0027] like Figure 1 and Figure 2 As shown, this embodiment provides a novel high-efficiency aerated biological filter, including a tank body 1. A coarse filter plate 4 and a fine filter plate 5 are installed in parallel in the middle of the tank body 1. A coarse filter groove 2 is formed on one side of the coarse filter plate 4, and an aeration groove 3 is formed on one side of the fine filter plate 5. A cleaning mechanism 6 is installed in the coarse filter groove 2, and a top frame 7 is provided at the top of the cleaning mechanism 6. An aeration pipe 8 is provided in the aeration groove 3.

[0028] In practice, wastewater enters the coarse filter tank 2, is filtered, and then seeps into the aeration tank 3. It is aerated and oxygenated through the aeration pipe 8. The internal microorganisms decompose the organic matter in the wastewater before it is discharged. The debris filtered out in the coarse filter tank 2 accumulates on the cleaning mechanism 6. When the cleaning mechanism 6 is in operation, it can lift the accumulated debris and dump it outside the tank body 1, thereby achieving automatic cleaning, avoiding debris accumulation, improving the filtration effect of wastewater, and thus improving the wastewater treatment efficiency.

[0029] A filter groove is formed between the coarse filter plate 4 and the fine filter plate 5, and sand and gravel are placed in the filter groove. In specific implementation, the sand and gravel can further enhance the filtration effect, allowing sewage to permeate through. The coarse filter plate 4 can perform coarse filtration to ensure the amount of water that can seep through, while the fine filter plate 5 can further filter and improve the filtration effect.

[0030] The cleaning mechanism 6 includes a hydraulic pump 601, a hydraulic rod 602, a connecting frame 603, a lifting filter plate 604, and a hydraulic telescopic rod 605. The hydraulic pump 601 is connected to the hydraulic rod 602, and the connecting frame 603 is installed at the bottom of the hydraulic rod 602. The lifting filter plate 604 is hinged to the bottom of the connecting frame 603, and the hydraulic telescopic rod 605 is hinged between the lifting filter plate 604 and the connecting frame 603. In specific implementation, the operation of the hydraulic pump 601 causes the hydraulic rod 602 to extend and retract, which allows the connecting frame 603 to drag the lifting filter plate 604 to rise and fall. This lifts the debris accumulated on the lifting filter plate 604 in the coarse filter tank 2 from the coarse filter tank 2. In conjunction with the extension and retraction of the hydraulic telescopic rod 605, the lifting filter plate 604 tilts, thereby automatically cleaning the debris to the outside of the tank body 1.

[0031] The connecting frame 603 has hinge rods at both ends, and corresponding hinge frames are symmetrically welded onto the filter plates 604. Each hinge rod is connected to its corresponding hinge frame. The lifting filter plate 604 has a baffle at its edge, and a waste discharge port is located at the end furthest from the hydraulic telescopic rod 605. In practice, by setting baffles at the edge of the lifting filter plate 604, accumulated debris can be prevented from sliding off the surrounding area, ensuring that the debris slides out through the waste discharge port, thus preventing the area around the tank 1 from becoming dirty due to falling debris.

[0032] Example 2:

[0033] like Figure 3 and Figure 4 As shown, this embodiment 2 provides a novel high-efficiency aerated biological filter. The difference between this embodiment and embodiment 1 is that a top frame 7 is installed at the top of the tank body 1, a moving mechanism 9 is installed on the top frame 7, a fixed frame 10 is installed at the bottom of the moving mechanism 9, and the fixed frame 10 is connected to the cleaning mechanism 6.

[0034] In practice, the moving mechanism 9 is operated, causing the fixed frame 10 to move, thereby moving the cleaning mechanism 6 so that the waste discharge port of the lifting filter plate 604 is located outside the pool body 1, preventing debris from falling back into the pool body 1 when it is dumped.

[0035] The moving mechanism 9 includes a motor 901, a screw 902, a slide rail 903, and a slider 904. The motor 901 is mounted on the top frame 7, and the output end of the motor 901 is connected to the screw 902. The slider 904, which is slidably connected to the slide rail 903, is mounted on the screw 902, and a fixing frame 10 is mounted on the bottom end of the slider 904. In specific implementation, the operation of the motor 901 causes the screw 902 to rotate, thereby allowing the slider 904 to move back and forth along the slide rail 903. This allows for adjustment of the position of the bottom lifting filter plate 604, so that when waste is discharged, the tilting of the lifting filter plate 604 can completely discharge the debris outside the pool body 1.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel high efficiency biological aerated filter characterized in that, Including pool body (1), parallel installation is formed with coarse filter board (4) and fine filter board (5) in the middle of pool body (1), one side of coarse filter board (4) is formed with coarse filter groove (2), one side of fine filter board (5) is formed with aeration groove (3), cleaning mechanism (6) is installed in coarse filter groove (2), top frame (7) is arranged at the top end of cleaning mechanism (6), aeration pipe (8) is arranged in aeration groove (3).

2. A novel high efficiency biological aerated filter according to claim 1, characterized in that, The filter groove is formed between the coarse filter board (4) and the fine filter board (5), and the filter groove is placed with sand and gravel.

3. A novel high efficiency biological aerated filter according to claim 2, characterized in that, The cleaning mechanism (6) includes a hydraulic pump (601), a hydraulic rod (602), a connecting frame (603), a lifting filter plate (604), and a hydraulic telescopic rod (605), the hydraulic pump (601) is connected with the hydraulic rod (602), the hydraulic rod (602) is installed at the bottom end of the connecting frame (603), the connecting frame (603) is hinged at the bottom end of the lifting filter plate (604), the lifting filter plate (604) and the connecting frame (603) are hinged with the hydraulic telescopic rod (605).

4. A novel high efficiency biological aerated filter according to claim 3, characterized in that, The connecting frame (603) is provided with a hinged rod at both ends, and a corresponding hinged frame is symmetrically welded on the filter plate (604), and each hinged rod is connected with the corresponding hinged frame.

5. A novel high efficiency biological aerated filter as claimed in claim 4 wherein, The lifting filter plate (604) is provided with a baffle at the edge, and a lower waste outlet is provided at one end away from the hydraulic telescopic rod (605).

6. A novel high efficiency biological aerated filter as claimed in claim 1 wherein, The pool body (1) is provided with a top frame (7) at the top end, the top frame (7) is provided with a moving mechanism (9), the moving mechanism (9) is provided with a fixed frame (10) at the bottom end, and the fixed frame (10) is connected with the cleaning mechanism (6).

7. A novel high efficiency biological aerated filter as claimed in claim 6 wherein, The moving mechanism (9) includes a motor (901), a screw rod (902), a sliding rail (903), and a sliding block (904), the motor (901) is installed on the top frame (7), the motor (901) is connected with the screw rod (902) at the output end, the screw rod (902) is installed with the sliding block (904) which is slidingly connected with the sliding rail (903), and the sliding block (904) is installed with the fixed frame (10) at the bottom end.

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