Cleaning device of biological aerated filter

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a cleaning device of a biological aerated filter, which comprises a filter body, and one side of the filter body is provided with a drain outlet; the cleaning mechanism comprises a supporting frame, a scraping plate, a spraying assembly, a rotation driving assembly and a brush cylinder; the driving end of the transverse reciprocating driving mechanism is connected with the bottom of the vertical reciprocating driving mechanism, the driving end of the vertical reciprocating driving mechanism is connected with the top of the supporting frame, the rotating driving assembly is installed on the supporting frame, the driving end of the rotating driving assembly is connected with one end of the brush cylinder, and the top of the spraying assembly is connected with the supporting frame. The spraying assembly is located on the side, away from the sewage draining exit, of the brush cylinder, the spraying end of the spraying assembly faces the brush cylinder and inclines downwards, the upper end of the scraper is connected with the bottom of the spraying assembly, and the scraper is located on the side, away from the brush cylinder, of the spraying assembly; the liquid supply mechanism is arranged on the outer side of the filter tank body, the liquid supply end of the liquid supply mechanism is communicated with the liquid inlet end of the spraying assembly, and the scheme is high in cleaning efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and particularly relates to a cleaning device for an aerated biological filter. Background Technique

[0002] The aerated biological filter is a sewage treatment technology that realizes the organic combination of biological degradation and physical filtration through the filling of filter media and aeration. This technology has the advantages of high treatment efficiency, small floor area, and stable operation, and is widely used in urban sewage treatment and industrial wastewater treatment and other fields. The aerated biological filter uses microorganisms to degrade pollutants, effectively removing organic matter, ammonia nitrogen and other pollutants in wastewater, improving water quality, and protecting the environment.

[0003] Due to the long-term overloading operation of the sewage treatment device, the aerated biological filter cannot perform intermittent backwashing operations according to the normal procedure, and the frequent fluctuations of the upstream water quality, etc., resulting in the fouling of the aerated biological filter, uneven aeration on the surface of the aerated biological filter, and when the aeration tank is used for a long time, impurities are likely to accumulate at the bottom, which is likely to affect the sewage treatment effect. It is necessary to clean and overhaul the aerated biological filter, and replace biological microporous aeration pipes, bottom perforated plate long-stem drain caps, single-hole aerators, etc.

[0004] After the existing aeration tank has been used for a long time, a relatively thick sediment will often accumulate in the sedimentation area at the bottom for drainage. Operators need to hold a water pipe to flush the bottom surface, which consumes a lot of manpower, and the flushing is not complete enough, the cleaning is relatively difficult, inconvenient to clean, and the cleaning efficiency is low. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a cleaning device for an aerated biological filter to solve the problem that after the existing aeration tank has been used for a long time, a relatively thick sediment will often accumulate in the sedimentation area at the bottom for drainage. Operators need to hold a water pipe to flush the bottom surface, which consumes a lot of manpower, and the flushing is not complete enough, the cleaning is relatively difficult, inconvenient to clean, and the cleaning efficiency is low.

[0006] The technical scheme adopted by the utility model is as follows: a cleaning device for an aerated biological filter, including a filter tank body, and a sewage discharge port is arranged on one side of the filter tank body;

[0007] A cleaning mechanism, the cleaning mechanism includes a support frame, a scraping plate, a spraying component, a rotation driving component and a brush barrel;

[0008] A horizontal reciprocating driving mechanism and a vertical reciprocating driving mechanism, the horizontal reciprocating driving mechanism is horizontally arranged on the outside of the filter tank body along the sewage discharge direction, the driving end of the horizontal reciprocating driving mechanism is connected to the bottom of the vertical reciprocating driving mechanism, and the vertical reciprocating driving mechanism is vertically arranged above the horizontal reciprocating driving mechanism;

[0009] The driving end of the vertical reciprocating driving mechanism is connected to the top of the support frame. The support frame is located directly above the filter tank body. The rotational driving assembly is installed on the support frame. The driving end of the rotational driving assembly is connected to one end of the brush barrel. The brush barrel is rotatably connected to the bottom of the support frame along the direction perpendicular to the sewage discharge direction. The top of the spraying assembly is connected to the support frame. The spraying assembly is located on the side of the brush barrel away from the sewage outlet. The spraying end of the spraying assembly faces the brush barrel and inclines downward. The upper end of the scraper is connected to the bottom of the spraying assembly. The scraper is located on the side of the spraying assembly away from the brush barrel. The lower end of the scraper is lower than the lower end of the brush barrel;

[0010] A liquid supply mechanism is arranged outside the filter tank body. The liquid supply end of the liquid supply mechanism is communicated with the liquid inlet end of the spraying assembly.

[0011] Furthermore, the spraying assembly includes a connecting plate, a spraying pipe, and high-pressure nozzles. The spraying pipe is arranged on the side of the brush barrel away from the sewage outlet along the direction perpendicular to the sewage discharge direction. Two symmetrically arranged connecting plates are fixedly connected to the top of the spraying pipe. The upper ends of the connecting plates are fixedly connected to the top of the support plate. Several high-pressure nozzles are arranged in an array along the length direction of the bottom of the spraying pipe and are communicated with each other. The liquid spraying end of the high-pressure nozzle faces the brush barrel and inclines downward. The liquid supply end of the liquid supply mechanism is communicated with the liquid inlet end at the top of the spraying pipe.

[0012] Furthermore, the rotational driving assembly includes a first motor, a driving sprocket, a driven sprocket, and a chain;

[0013] The first motor is arranged on the outer side wall of the support frame and is located at the edge position of the upper end of the support frame. The driving end of the first motor penetrates the support frame inward and is connected to the driving sprocket. The driving sprocket and the driven sprocket are both rotatably connected to the inner side wall of the support frame and are arranged at intervals from top to bottom in sequence. The chain is sleeved on the driving sprocket and the driven sprocket. The driving sprocket and the driven sprocket are both meshed with the chain. Shafts are arranged at both ends of the brush barrel. The shaft at one end of the brush barrel is rotatably connected to the support frame. The shaft at the other end of the brush barrel is fixedly connected to the driven sprocket.

[0014] Furthermore, the lateral reciprocating driving mechanism includes a first cross frame, a second cross frame, a second motor, a first lead screw, a first lead screw nut, a slide bar, and a slide seat;

[0015] The first horizontal frame is horizontally arranged on the right side of the filter tank body. The second motor is horizontally installed on the rear side wall of the first horizontal frame. The driving end of the second motor penetrates through the first horizontal frame forward and is fixedly connected to the rear end of the first lead screw. The first lead screw is horizontally rotatably connected in the first horizontal frame. The first lead screw nut is threadedly sleeved on the first lead screw. The second horizontal frame is horizontally arranged on the left side of the filter tank body. The slide bar is horizontally and fixedly connected to the second horizontal frame. The slide seat is slidably sleeved on the slide bar. The bottom of the vertical reciprocating driving mechanism is fixedly connected to the top of the first lead screw nut and the slide seat.

[0016] Furthermore, the vertical reciprocating driving mechanism includes a first vertical frame, a second vertical frame, a third motor, a second lead screw, a second lead screw nut, a column and a slider.

[0017] The first vertical frame is vertically arranged on the right side of the filter tank body. The third motor is vertically installed on the top of the first vertical frame. The driving end of the third motor penetrates through the first vertical frame downward and is fixedly connected to the upper end of the second lead screw. The second lead screw is vertically rotatably connected in the first vertical frame. The second lead screw nut is threadedly sleeved on the second lead screw. The second vertical frame is vertically arranged on the left side of the filter tank body. The column is vertically and fixedly connected to the second vertical frame. The slider is slidably sleeved on the column. The left and right ends of the support frame are respectively fixedly connected to the slider and the second lead screw nut. The bottom of the first vertical frame is fixedly connected to the top of the first lead screw nut. The bottom of the second vertical frame is fixedly connected to the top of the slide seat.

[0018] Furthermore, the liquid supply mechanism includes a liquid storage tank, a liquid delivery pipe, a liquid supply pump and a liquid supply hose. The liquid storage tank is arranged outside the filter tank body. The liquid outlet of the liquid storage tank is communicated with the liquid inlet end of the liquid supply pump through the liquid delivery pipe. The liquid outlet end of the liquid supply pump is communicated with the liquid inlet end of the spraying assembly through the liquid supply hose.

[0019] The beneficial effects of the utility model:

[0020] Then start the vertical reciprocating drive mechanism to drive the support frame to move downward, and then drive the rotation drive assembly, spray assembly, scraper, and brush barrel on the support frame to move vertically downward synchronously. They all move down into the filter tank until the bottom of the scraper abuts against the inner bottom of the filter tank. At the same time, the bristles at the lower end of the brush barrel abut against the inner bottom of the filter tank and are in a state of compressive deformation. At this time, the side of the scraper facing away from the brush barrel abuts against and is attached to the rear inner wall of the filter tank. Then start the horizontal reciprocating drive mechanism to drive the vertical reciprocating drive mechanism to move towards the sewage outlet, thereby driving the support frame, the spray assembly, the brush barrel, and the scraper on the support frame to move towards the sewage outlet synchronously. During the movement, at the same time, start the liquid supply mechanism to transport the cleaning liquid to the spray assembly, and the spray assembly sprays the liquid obliquely downward to the contact area between the brush barrel and the inner bottom of the filter tank. The rotation drive assembly drives the brush barrel to rotate to continuously brush the inner bottom of the filter tank, and uses the bristles on its surface to rub the sediment at the bottom of the filter tank, stripping the sediment from the bottom of the tank through physical action, and flushing the sediment at the bottom of the filter tank with the impact of the water flow of the spray assembly. The rotation of the brush barrel can stir the water flow, which helps to carry away the loosened sediment, improve the cleaning efficiency, and cooperate with the scraper to scrape the remaining sediment at the inner bottom of the filter tank towards the sewage outlet, further cleaning the sediment at the bottom of the filter tank body, making the cleaning effect better and the cleaning efficiency higher. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention (first perspective);

[0022] Figure 2 is a schematic diagram of the overall structure of the present invention (second perspective);

[0023] Figure 3 is a schematic diagram of the structure of the support frame, rotation drive assembly, and brush barrel of the present invention;

[0024] Figure 4 is a schematic diagram of the structure of the spray assembly of the present invention;

[0025] The reference numerals in the drawings are as follows:

[0026] Filter tank body 1, sewage outlet 11, cleaning mechanism 2, support frame 21, scraper 22, brush barrel 23, spraying component 3, connecting plate 31, spraying pipe 32, high-pressure nozzle 33, rotation driving component 4, first motor 41, driving sprocket 42, driven sprocket 43, chain 44, horizontal reciprocating driving mechanism 5, first cross frame 51, second cross frame 52, second motor 53, first lead screw 54, first lead screw nut 55, slide bar 56, slide block 57, vertical reciprocating driving mechanism 6, first vertical frame 61, second vertical frame 62, third motor 63, second lead screw 64, second lead screw nut 65, column 66, slider 67, liquid supply mechanism 7, liquid storage tank 71, liquid infusion pipe 72, liquid supply pump 73, liquid supply hose 74. Detailed implementation mode

[0027] The following further describes in detail the implementation mode of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0028] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] Embodiment 1:

[0031] As Figures 1 to 4 shown, a cleaning device for an aerated biological filter tank includes a filter tank body 1, and a sewage outlet 11 is opened on one side of the filter tank body 1; a sewage discharge pipe is communicated with the sewage outlet 11, and a solenoid valve is arranged on the sewage discharge pipe;

[0032] a cleaning mechanism 2, and the cleaning mechanism 2 includes a support frame 21, a scraper 22, a spraying component 3, a rotation driving component 4 and a brush barrel 23;

[0033] A horizontal reciprocating drive mechanism 5 and a vertical reciprocating drive mechanism 6, wherein the horizontal reciprocating drive mechanism 5 is horizontally arranged outside the filter tank body 1 along the sewage discharge direction, the drive end of the horizontal reciprocating drive mechanism 5 is connected to the bottom of the vertical reciprocating drive mechanism 6, and the vertical reciprocating drive mechanism 6 is vertically arranged above the horizontal reciprocating drive mechanism 5;

[0034] The drive end of the vertical reciprocating drive mechanism 6 is connected to the top of the support frame 21. The support frame 21 is located directly above the filter tank body 1. The rotation drive assembly 4 is installed on the support frame 21. The drive end of the rotation drive assembly 4 is connected to one end of the brush barrel 23. The brush barrel 23 is rotatably connected to the bottom of the support frame 21 along the direction perpendicular to the sewage discharge direction. The top of the spraying assembly 3 is connected to the support frame 21. The spraying assembly 3 is located on the side of the brush barrel 23 away from the sewage outlet 11. The spraying end of the spraying assembly 3 faces the brush barrel 23 and is inclined downward. The spraying end of the spraying assembly 3 can spray onto the contact surface where the brush barrel 23 contacts the inner bottom of the filter tank body 1. The upper end of the scraper 22 is connected to the bottom of the spraying assembly 3. The scraper 22 is located on the side of the spraying assembly 3 away from the brush barrel 23. The lower end of the scraper 22 is lower than the lower end of the brush barrel 23. When the bottom of the scraper 22 abuts against the inner bottom of the filter tank body 1, the bristles at the lower end of the brush barrel 23 abut against the inner bottom of the filter tank body 1 and are in a state of compressive deformation, improving the contact strength between the bristles of the brush barrel 23 and the inner bottom of the filter tank body 1 and making the brushing effect better;

[0035] A liquid supply mechanism 7, wherein the liquid supply mechanism 7 is arranged outside the filter tank body 1, and the liquid supply end of the liquid supply mechanism 7 is communicated with the liquid inlet end of the spraying assembly 3.

[0036] Such as Figure 4As shown in the figure, as a preferred solution, the spraying assembly 3 includes a connecting plate 31, a spraying pipe 32, and a high-pressure nozzle 33. The spraying pipe 32 is arranged on the side of the brush barrel 23 away from the sewage outlet 11 along the direction perpendicular to the sewage discharge direction. Two symmetrically arranged connecting plates 31 are fixedly connected to the top of the spraying pipe 32. The upper ends of the connecting plates 31 are fixedly connected to the top of the support plate. The bottom of the spraying pipe 32 is communicated with several high-pressure nozzles 33 in an array along the length direction of the spraying pipe 32. The liquid spraying end of the high-pressure nozzle 33 faces the brush barrel 23 and inclines downward. The liquid supply end of the liquid supply mechanism 7 is communicated with the liquid inlet end at the top of the spraying pipe 32. The liquid supply mechanism 7 supplies liquid to the spraying pipe 32, the spraying pipe 32 supplies liquid to the high-pressure nozzles 33, and the high-pressure nozzles 33 spray the cleaning liquid obliquely downward to the contact position between the brush barrel 23 and the inner bottom of the filter tank body 1. When the rotation driving assembly 4 drives the brush barrel 23 to rotate to continuously brush the inner bottom of the filter tank body 1, the sediment at the bottom of the filter tank is rubbed by the bristles on its surface, and the sediment is peeled off from the bottom of the tank through physical action. The sediment at the bottom of the filter tank is dispersed by the water flow impact of the high-pressure nozzle. The rotation of the brush barrel 23 can stir the water flow, which helps to take away the loosened sediment and improve the cleaning efficiency.

[0037] As a preferred solution, the rotation driving assembly 4 includes a first motor 41, a driving sprocket 42, a driven sprocket 43, and a chain 44;

[0038] The first motor 41 is arranged on the outer side wall of the support frame 21 and is located at the edge position of the upper end of the support frame 21. The driving end of the first motor 41 penetrates the support frame 21 inward and is connected to the driving sprocket 42. The driving sprocket 42 and the driven sprocket 43 are both rotatably connected to the inner side wall of the support frame 21 and are arranged at intervals from top to bottom in sequence. The chain 44 is sleeved on the driving sprocket 42 and the driven sprocket 43. The driving sprocket 42 and the driven sprocket 43 are both engaged with the chain 44. Shafts are arranged at both ends of the brush barrel 23. One shaft of the brush barrel 23 is rotatably connected to the support frame 21, and the other shaft of the brush barrel 23 is fixedly connected to the driven sprocket 43. By starting the first motor 41 to drive the driving sprocket 42 to rotate, the driven sprocket 43 receives the power transmitted from the driving sprocket 42 through the chain 44 and then rotates. The driven sprocket 43 drives the brush barrel 23 to rotate, so as to facilitate the brush barrel 23 to brush the sediment at the bottom of the filter tank body 1.

[0039] As Figure 1As shown, as a preferred solution, the horizontal reciprocating drive mechanism 5 includes a first horizontal frame 51, a second horizontal frame 52, a second motor 53, a first lead screw 54, a first lead screw nut 55, a slide bar 56 and a slide seat 57; the first horizontal frame 51 is horizontally arranged on the right side of the filter tank body 1, the second motor 53 is horizontally installed on the rear side wall of the first horizontal frame 51, the driving end of the second motor 53 penetrates through the first horizontal frame 51 forward and is fixedly connected to the rear end of the first lead screw 54, the first lead screw 54 is horizontally rotatably connected within the first horizontal frame 51, the first lead screw nut 55 is threadedly sleeved on the first lead screw 54, the second horizontal frame 52 is horizontally arranged on the left side of the filter tank body 1, the slide bar 56 is horizontally fixedly connected to the second horizontal frame 52, the slide seat 57 is slidably sleeved on the slide bar 56, and the bottom of the vertical reciprocating drive mechanism 6 is fixedly connected to the tops of the first lead screw nut 55 and the slide seat 57. By starting the second motor 53 to drive the first lead screw 54 to rotate, the rotation of the first lead screw 54 drives the first lead screw nut 55 to move horizontally on the first lead screw 54, thereby driving the slide seat 57 to move synchronously on the slide bar 56, and then driving the vertical reciprocating drive mechanism 6, the support frame 21, the spraying assembly 3 on the support frame 21, the brush barrel 23 and the scraper 22 to move synchronously, facilitating the brushing and flushing of the sediment at the bottom inside the filter tank body 1 by the spraying assembly 3 and the brush barrel 23, and cooperating with the scraper 22 to scrape the remaining sediment at the bottom inside the filter tank body 1 towards the sewage outlet 11, further cleaning the sediment at the bottom of the filter tank body 1, making the cleaning effect better and the cleaning efficiency higher.

[0040] In other embodiments of the present invention, a third lead screw nut is used to replace the slide seat 57, a third lead screw is used to replace the slide bar 56, the third lead screw is rotatably connected within the second horizontal frame 52, and a fourth motor is arranged on the rear side wall of the second horizontal frame 52. The driving end of the fourth motor penetrates through the rear side wall of the second horizontal frame 52 and is fixedly connected to the rear end of the third lead screw. By simultaneously starting the fourth motor and the second motor 53 to rotate synchronously, the fourth motor drives the third lead screw to rotate, thereby driving the third lead screw nut to move on the third lead screw, enabling the third lead screw nut and the first lead screw nut 55 to move synchronously, driving the two ends of the support frame 21 to move back and forth synchronously. By providing two driving sources, namely the second motor 53 and the fourth motor, the movement of the support frame 21 is more stable during the movement process.

[0041] As Figure 1As shown, as a preferred solution, the vertical reciprocating drive mechanism 6 includes a first vertical frame 61, a second vertical frame 62, a third motor 63, a second lead screw 64, a second lead screw nut 65, a column 66, and a slider 67; the first vertical frame 61 is vertically arranged on the right side of the filter tank body 1, the third motor 63 is vertically installed at the top of the first vertical frame 61, the driving end of the third motor 63 penetrates downward through the first vertical frame 61 and is fixedly connected to the upper end of the second lead screw 64, the second lead screw 64 is vertically rotatably connected within the first vertical frame 61, the second lead screw nut 65 is threadedly sleeved on the second lead screw 64, the second vertical frame 62 is vertically arranged on the left side of the filter tank body 1, the column 66 is vertically fixedly connected to the second vertical frame 62, the slider 67 is slidably sleeved on the column 66, the left and right ends of the support frame 21 are fixedly connected to the slider 67 and the second lead screw nut 65 respectively through connection blocks, the bottom of the first vertical frame 61 is fixedly connected to the top of the first lead screw nut 55, and the bottom of the second vertical frame 62 is fixedly connected to the top of the sliding seat 57. By starting the third motor 63 to drive the second lead screw 64 to rotate, the rotation of the second lead screw 64 drives the second lead screw nut 65 to move vertically on the second lead screw 64, thereby driving the slider 67 to move synchronously on the column 66, and then driving the support frame 21, the rotation drive assembly 4, the spraying assembly 3, the scraper 22, and the brush barrel 23 on the support frame 21 to move vertically synchronously. Before cleaning the filter tank body 1, through the coordinated use of the first vertical frame 61, the second vertical frame 62, the third motor 63, the second lead screw 64, the second lead screw nut 65, the column 66, and the slider 67, the support frame 21, the rotation drive assembly 4, the spraying assembly 3, the scraper 22, and the brush barrel 23 are all moved upward above the filter tank body 1 to avoid interference during the sewage treatment in the filter tank and the disassembly of the sewage treatment structure in the filter tank body 1. When it is necessary to clean the filter tank body 1, through the coordinated use of the first vertical frame 61, the second vertical frame 62, the third motor 63, the second lead screw 64, the second lead screw nut 65, the column 66, and the slider 67, the support frame 21, the rotation drive assembly 4, the spraying assembly 3, the scraper 22, and the brush barrel 23 are all moved downward into the filter tank body 1 to facilitate the cleaning of the sediment at the bottom of the filter tank body 1.

[0042] In other embodiments of the present utility model, a fourth lead screw nut is used to replace the slider 67, and a fourth lead screw is used to replace the column 66. The fourth lead screw is rotatably connected within the second vertical frame 62, and a fifth motor is provided at the top of the second vertical frame 62. The driving end of the fifth motor penetrates through the top of the second vertical frame 62 and is fixedly connected to the upper end of the fourth lead screw. By simultaneously starting the fifth motor and the third motor 63 to rotate synchronously, the fifth motor drives the fourth lead screw to rotate, thereby driving the fourth lead screw nut to move on the fourth lead screw, enabling the fourth lead screw nut and the second lead screw nut 65 to move synchronously, driving the two ends of the support frame 21 to move vertically synchronously. By providing two driving sources, namely the third motor 63 and the fifth motor, the vertical movement of the support frame 21 is more stable during the process.

[0043] In other embodiments, two first cylinders can also be horizontally arranged on the left and right sides of the filter tank body 1 to synchronously drive the first vertical frame 61 and the second vertical frame 62 to move horizontally synchronously; second cylinders are vertically arranged within the first vertical frame 61 and the second vertical frame 62 respectively, and the driving ends of the two second cylinders are connected to the left and right ends of the support frame 21, driving the support frame 21 to move vertically synchronously through the two second cylinders.

[0044] As a preferred solution, the liquid supply mechanism 7 includes a liquid storage tank 71, a liquid delivery pipe 72, a liquid supply pump 73, and a liquid supply hose 74. The liquid storage tank 71 is arranged outside the filter tank body 1. The liquid outlet of the liquid storage tank 71 is communicated with the liquid inlet end of the liquid supply pump 73 through the liquid delivery pipe 72, and the liquid outlet end of the liquid supply pump 73 is communicated with the liquid inlet end of the spraying assembly 3 through the liquid supply hose 74. In this embodiment, acidic liquid is stored in the liquid storage tank 71, and the acidic liquid is dilute hydrochloric acid or dilute sulfuric acid; the liquid in the liquid storage tank 71 is transported into the liquid supply hose 74 through the liquid delivery pump, and the liquid is transported to the spraying assembly 3 through the liquid supply hose 74, facilitating the spraying assembly 3 to wash the sediment at the bottom of the filter tank body 1. Moreover, by providing the liquid supply hose 74, it is ensured that when the spraying assembly 3 moves along the sewage discharge direction under the drive of the transverse reciprocating drive mechanism 5, continuous liquid supply can be achieved, improving the cleaning efficiency. The liquid supply pump 73 adopts an FPG series corrosion-resistant pipeline centrifugal pump, which has strong adaptability to acidic liquid, and an anti-corrosion layer is coated inside the liquid storage tank 71.

[0045] The working mode of the present utility model is as follows:

[0046] During use, the biological microporous aeration pipe, the long-stem drainage cap of the bottom perforated plate, the single-hole aerator, etc. inside the filter tank body 1 are removed to facilitate the cleaning device to clean the bottom of the filter tank body 1. Before brushing, the acidic liquid in the liquid storage tank 71 is evenly injected into the filter tank body 1 through the spraying component 3 to ensure that the liquid fully contacts the sediment at the bottom of the filter tank body 1, soak the inner bottom of the filter tank body 1. After the soaking is over, the soaking liquid is drained from the filter tank body 1. Then, the third motor 63 is started to drive the second lead screw 64 to rotate. The rotation of the second lead screw 64 drives the second lead screw nut 65 to move downward on the second lead screw 64, thereby driving the slider 67 to move downward synchronously on the column 66, and then driving the support frame 21, the rotation driving component 4 on the support frame 21, the spraying component 3, the scraping plate 22, and the brush barrel 23 to move downward vertically and synchronously, all moving down into the filter tank body 1 until the bottom of the scraping plate 22 abuts against the inner bottom of the filter tank body 1. At the same time, the bristles at the lower end of the brush barrel 23 abut against the inner bottom of the filter tank body 1 and are in a state of compressive deformation. At this time, the side of the scraping plate 22 facing away from the brush barrel 23 abuts against and is attached to the rear inner wall of the filter tank body 1. Then, the second motor 53 is started to drive the first lead screw 54 to rotate. The rotation of the first lead screw 54 drives the first lead screw nut 55 to move towards the sewage outlet 11 on the first lead screw 54, thereby driving the sliding seat 57 to move synchronously on the sliding rod 56, and then driving the vertical reciprocating driving mechanism 6, the support frame 21, the spraying component 3 on the support frame 21, the brush barrel 23 and the scraping plate 22 to move synchronously towards the sewage outlet 11. During the movement, the liquid supply pump 73 and the first motor 41 are simultaneously turned on. The liquid supply pump 73 transports the liquid in the liquid storage tank 71 into the liquid supply hose 74, and transports the liquid to the spray pipe 32 through the liquid supply hose 74, and the high-pressure nozzle 33 sprays the liquid obliquely downward to the contact area between the brush barrel 23 and the inner bottom of the filter tank body 1. The first motor 41 drives the brush barrel 23 to rotate to continuously brush the inner bottom of the filter tank body 1, and the bristles on its surface are used to rub the sediment at the bottom of the filter tank. The sediment is peeled off from the bottom of the tank through physical action, and the water flow impact of the high-pressure nozzle is used to disperse the sediment at the bottom of the filter tank. The rotation of the brush barrel 23 can stir the water flow, which helps to take away the loosened sediment, improve the cleaning efficiency, and cooperate with the scraping plate 22 to scrape the remaining sediment at the inner bottom of the filter tank body 1 towards the sewage outlet 11, further cleaning the sediment at the bottom of the filter tank body 1, making the cleaning effect better and the cleaning efficiency higher.

[0047] The above has introduced the present utility model in detail. The description of the specific embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A cleaning device for a biological aerated filter, characterized in that: include A filter tank body (1), wherein a sewage outlet (11) is provided on one side of the filter tank body (1); A cleaning mechanism (2), the cleaning mechanism (2) comprising a support frame (21), a scraper (22), a spray assembly (3), a rotation drive assembly (4) and a brush cylinder (23); A transverse reciprocating drive mechanism (5) and a vertical reciprocating drive mechanism (6), wherein the transverse reciprocating drive mechanism (5) is horizontally arranged on the outside of the filter tank body (1) along the sewage discharge direction, a driving end of the transverse reciprocating drive mechanism (5) is connected to the bottom of the vertical reciprocating drive mechanism (6), and the vertical reciprocating drive mechanism (6) is vertically arranged above the transverse reciprocating drive mechanism (5); The driving end of the vertical reciprocating drive mechanism (6) is connected to the top of the support frame (21), and the support frame (21) is located directly above the filter tank body (1). The rotating drive assembly (4) is installed on the support frame (21), and the driving end of the rotating drive assembly (4) is connected to one end of the brush cylinder (23), and the brush cylinder (23) is rotatably connected to the bottom of the support frame (21) along the vertical sewage discharge direction. The top of the spray assembly (3) is connected to the support frame (21), and the spray assembly (3) is located on the side of the brush cylinder (23) away from the sewage discharge port (11). The spray end of the spray assembly (3) faces the brush cylinder (23) and is inclined downward. The upper end of the scraper (22) is connected to the bottom of the spray assembly (3), and the scraper (22) is located on the side of the spray assembly (3) away from the brush cylinder (23). The lower end of the scraper (22) is lower than the lower end of the brush cylinder (23). A liquid supply mechanism (7), wherein the liquid supply mechanism (7) is arranged outside the filter tank body (1), and the liquid supply end of the liquid supply mechanism (7) is connected to the liquid inlet end of the spray assembly (3).

2. The cleaning device for a biological aerated filter according to claim 1, characterized in that: The spray assembly (3) comprises a connecting plate (31), a spray pipe (32) and a high-pressure nozzle (33); the spray pipe (32) is arranged on a side of the brush barrel (23) away from the sewage outlet (11) along a vertical sewage discharge direction; the top of the spray pipe (32) is fixedly connected to two symmetrically arranged connecting plates (31); the upper end of the connecting plate (31) is fixedly connected to the top of the support plate; the bottom of the spray pipe (32) is connected to a plurality of high-pressure nozzles (33) in an array along the length direction of the spray pipe (32); the liquid spraying end of the high-pressure nozzle (33) faces the brush barrel (23) and is inclined downward; the liquid supply end of the liquid supply mechanism (7) is connected to the liquid inlet end at the top of the spray pipe (32).

3. The cleaning device for aerated biological filter according to claim 1, characterized in that: The rotation drive assembly (4) comprises a first motor (41), a driving sprocket (42), a driven sprocket (43) and a chain (44); The first motor (41) is arranged on the outer wall of the support frame (21) and is located at the edge of the upper end of the support frame (21); the driving end of the first motor (41) penetrates the support frame (21) inwardly and is connected to the driving sprocket (42); the driving sprocket (42) and the driven sprocket (43) are both rotatably connected to the inner wall of the support frame (21) and are sequentially spaced from top to bottom; the chain (44) is sleeved on the driving sprocket (42) and the driven sprocket (43); the driving sprocket (42) and the driven sprocket (43) are both meshed with the chain (44); rotating shafts are arranged at both ends of the brush cylinder (23); the rotating shaft at one end of the brush cylinder (23) is rotatably connected to the support frame (21), and the rotating shaft at the other end of the brush cylinder (23) is fixedly connected to the driven sprocket (43).

4. The cleaning device for a biological aerated filter according to claim 1, characterized in that: The transverse reciprocating drive mechanism (5) comprises a first transverse frame (51), a second transverse frame (52), a second motor (53), a first lead screw (54), a first lead screw nut (55), a slide rod (56) and a slide seat (57); The first cross frame (51) is horizontally arranged on the right side of the filter tank body (1), the second motor (53) is horizontally installed on the rear side wall of the first cross frame (51), the driving end of the second motor (53) passes through the first cross frame (51) forward and is fixedly connected to the rear end of the first lead screw (54), the first lead screw (54) is horizontally rotatably connected in the first cross frame (51), the first lead screw nut (55) is threadedly sleeved on the first lead screw (54), the second cross frame (52) is horizontally arranged on the left side of the filter tank body (1), the sliding rod (56) is horizontally fixedly connected to the second cross frame (52), the sliding seat (57) is slidably sleeved on the sliding rod (56), and the bottom of the vertical reciprocating drive mechanism (6) is fixedly connected to the first lead screw nut (55) and the top of the sliding seat (57).

5. The cleaning device for aerated biological filter according to claim 4, characterized in that: The vertical reciprocating drive mechanism (6) comprises a first stand (61), a second stand (62), a third motor (63), a second lead screw (64), a second lead screw nut (65), a stand (66) and a slide block (67); The first stand (61) is vertically arranged on the right side of the filter tank body (1), the third motor (63) is vertically installed on the top of the first stand (61), the driving end of the third motor (63) downwardly penetrates the first stand (61) and is fixedly connected to the upper end of the second lead screw (64), the second lead screw (64) is vertically rotatably connected in the first stand (61), the second lead screw nut (65) is threadedly sleeved on the second lead screw (64), the second stand (62) is vertically arranged on the left side of the filter tank body (1), the column (66) is vertically fixedly connected to the second stand (62), the slider (67) is slidably sleeved on the column (66), the left and right ends of the support frame (21) are respectively fixedly connected to the slider (67) and the second lead screw nut (65), the bottom of the first stand (61) is fixedly connected to the top of the first lead screw nut (55), and the bottom of the second stand (62) is fixedly connected to the top of the slide seat (57).

6. The cleaning device for a biological aerated filter according to claim 1, characterized in that: The liquid supply mechanism (7) comprises a liquid storage tank (71), a liquid infusion pipe (72), a liquid supply pump (73) and a liquid supply hose (74); the liquid storage tank (71) is arranged outside the filter tank body (1); the liquid outlet of the liquid storage tank (71) is connected to the liquid inlet end of the liquid supply pump (73) through the liquid infusion pipe (72); the liquid outlet end of the liquid supply pump (73) is connected to the liquid inlet end of the spray assembly (3) through the liquid supply hose (74).

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