An aeration device for a biological filter with cleaning function

Abstract

This invention relates to the field of wastewater purification, and more particularly to an aeration device for a biological filter with cleaning function, comprising an aerated biological filter and aeration pipes I, etc.; the aerated biological filter is equipped with pipes connected to an external water pump, and the aerated biological filter is equipped with a discharge section; the aerated biological filter is detachably connected to several aeration pipes I, and several air outlets are provided on the upper side of the aeration pipes I. This invention aerates the water above the aerated biological filter by spraying air through an aeration plate in the middle of the filter media storage frame. The aeration plate repeatedly rotates and agitates the filter media and water in the storage frame, allowing the microorganisms attached to the filter media to absorb oxygen more evenly from the water. This avoids the problem of uneven oxygen content in the water, where the water at the bottom absorbs more oxygen while the water at the top struggles to absorb sufficient oxygen, which negatively impacts the cultivation of microorganisms.

Description

Technical Field

[0001] This invention relates to the field of wastewater purification, and more particularly to an aeration device for a biological filter with a cleaning function. Background Technology

[0002] A biofilter is a water purification device that uses microorganisms to purify wastewater. Since microorganisms are typically aerobic, oxygen needs to be continuously supplied to the biofilter through an aeration device during operation to ensure sufficient oxygen content in the water and prevent the microorganisms from dying due to insufficient oxygen absorption. In existing technologies, aeration is usually achieved by placing the aeration device at the bottom of the biofilter, where air is sprayed out to form bubbles that float upwards. As the bubbles rise, the water absorbs oxygen from the bubbles, increasing the oxygen content of the water. However, because the bubbles rise from the bottom up, the water at the bottom absorbs more oxygen, while the water at the top struggles to absorb enough, resulting in an uneven distribution of oxygen in the water. This, in turn, affects the growth of microorganisms and the purification effect.

[0003] Furthermore, since the aeration device is located at the bottom of the biological filter, when the aeration device needs to be repaired, the components above the aeration device must be moved away before the aeration device can be repaired, which makes the repair difficult and time-consuming. Also, since the aeration device is usually fixed, and the bubbles produced by the aeration device float vertically upward, water that is far from the aeration device in the horizontal direction has difficulty absorbing enough oxygen, which further leads to uneven oxygen content in the water. Summary of the Invention

[0004] To overcome the drawback that because bubbles rise from the bottom up, the water at the bottom can absorb more oxygen, while the water at the top cannot absorb enough oxygen, resulting in uneven oxygen content in the water and affecting the cultivation of microorganisms, the present invention provides an aeration device for a biological filter with a cleaning function.

[0005] The technical implementation of this invention is as follows: An aeration device for a biological filter with a cleaning function includes an aerated biological filter and aeration pipes I; the aerated biological filter is provided with pipes, which are connected to an external water pump, and the aerated biological filter is provided with a discharge section; the aerated biological filter is detachably connected to several aeration pipes I, and several air outlets are provided on the upper side of the aeration pipes I, and all aeration pipes I are connected to an external air pump; it also includes a filter media storage frame, an aeration plate, a support layer, a water distribution frame, aeration pipes II, and a sealing assembly; the aerated biological filter is connected to several filter media storage frames, the bottom of the filter media storage frames is provided with a filter screen, and the side walls of the filter media storage frames are hollow. The aerated biological filter is configured such that all filter media storage frames are interconnected via air pipes; the aerated biological filter has several aeration pipes II, all of which are connected to adjacent filter media storage frames, and all filter media storage frames contain filter media with attached microorganisms; the filter media storage frames are connected to several aeration plates, and the aeration plates are provided with several aeration holes, and the aeration plates are connected to the filter media storage frames via sleeves; the aerated biological filter is fixedly connected to a support layer, and the support layer is located below the filter media storage frames; the aerated biological filter is detachably connected to a water distribution frame, and several water spray nozzles are provided on the lower side of the water distribution frame, and the water distribution frame is connected to an external water pump; the aerated biological filter is connected to a sealing component.

[0006] Optionally, the sealing assembly includes a lower sealing plate, an upper sealing plate, a rotating shaft, and a motor; the aerated biological filter is fixedly connected to several lower sealing plates, and each aeration pipe I is located inside the corresponding lower sealing plate, with the inner side of the lower sealing plate fitting against the aeration pipe I, and a rubber strip is provided on the lower side of each lower sealing plate; the aerated biological filter is fixedly connected to several motors; a rotating shaft is fixedly connected to the output end of each motor; each rotating shaft is rotatably connected to the corresponding lower sealing plate; an upper sealing plate is fixedly connected to each rotating shaft, and the inner side of the upper sealing plate is adapted to the shape and size of the aeration pipe I, with a rubber strip provided on the upper side of each upper sealing plate.

[0007] Optionally, it also includes a baffle plate I; both the filter media storage frames located in the middle and on the right are fixed with a baffle plate I.

[0008] Optionally, it also includes blocking blocks; all aeration plates are fixedly connected to several blocking blocks, and all blocking blocks correspond to the positions of the aeration holes.

[0009] Optionally, it also includes gears, sliding bars, racks, and push rod I; the filter media storage frame is rotatably connected to the aeration plate; all filter media storage frames are rotatably connected to several gears, and all gears are fixedly connected to adjacent aeration plates; all filter media storage frames are slidably connected to a sliding bar; all sliding bars are fixedly connected to several racks, and the racks mesh with adjacent gears; all filter media storage frames are fixedly connected to a push rod I, and the telescopic end of push rod I is fixedly connected to the adjacent sliding bar.

[0010] Optionally, it also includes push rods II and baffle plates II; several push rods II are fixedly connected to the aerated biological filter; and the telescopic ends of two corresponding push rods II are fixedly connected to the adjacent filter media storage frames, and the leftmost and rightmost filter media storage frames are movably connected to the aerated biological filter through connecting rods; a baffle plate II is fixedly connected to the middle and rightmost filter media storage frames, and a mating groove that cooperates with the baffle plate II is provided in the middle and leftmost filter media storage frames.

[0011] Optionally, the aerated biological filter is equipped with several discharge pipes, and all the discharge pipes correspond to the positions of the adjacent baffle plate II or discharge section.

[0012] Optionally, the filter media storage frame is provided with an arc-shaped back plate, and the height of the arc-shaped back plate is higher than the side plate of the filter media storage frame; the arc-shaped back plate is provided with a lifting ring; the aerated biological filter is detachably provided with a lifting door, the lifting door is provided with several buckles, and the contact parts between the lifting door and the aerated biological filter are provided with rubber sealing strips.

[0013] Optionally, it also includes a scraping strip; a scraping strip is rotatably connected between each pair of adjacent blocking blocks.

[0014] Optionally, it also includes a scraper; all filter media storage frames are slidably connected to a scraper, and the sliding strip is fixed to the adjacent scraper.

[0015] The present invention has the following advantages: The present invention sprays air from the middle of the filter media storage box through the aeration plate, thereby aerating the water above the aerated biological filter. By repeatedly rotating the aeration plate, the filter media and water in the filter media storage box can be agitated, so that the microorganisms attached to the filter media in the filter media storage box can absorb oxygen in the water more evenly. This avoids the problem that the water at the bottom can absorb more oxygen, while the water at the top cannot absorb enough oxygen, resulting in uneven oxygen content in the water, which affects the cultivation of microorganisms.

[0016] The present invention rotates the upper plate to cover the lower plate, so that the upper plate and the lower plate are in a sealed state. When all the aeration pipes I are pulled out from the front of the aerated biological filter for maintenance, the water in the aerated biological filter will not flow out. Compared with the existing technology, which requires draining the water in the aerated biological filter and removing the parts above the aeration device to maintain the aeration pipes I, the above work is more convenient.

[0017] This invention allows clean water to overflow from the gaps between the three filter media storage frames, greatly reducing the distance that impurities need to travel when overflowing. This avoids the problem that impurities located far from the edge of the filter media storage frame are difficult to overflow from the frame, resulting in some impurities in the middle of the frame not being flushed out by backwashing and thus causing poor backwashing effect.

[0018] This invention separates the filter media from the filter media storage frame using a scraper and a scraper frame, preventing some filter media from adhering to the inner wall of the filter media storage frame, which would prevent some filter media from being poured out normally and thus require subsequent handling by staff. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first perspective structure of the aeration device for a biological filter with cleaning function disclosed in this invention.

[0020] Figure 2 This is a schematic diagram of the second perspective structure of the aeration device for a biological filter with cleaning function disclosed in the present invention.

[0021] Figure 3 This is a cross-sectional view of the aerated biological filter disclosed in the aeration device for a biological filter with cleaning function of the present invention.

[0022] Figure 4 This is a schematic diagram of the combined structure of the aeration pipe I and the sealing assembly of the aeration device for a biological filter with cleaning function disclosed in this invention.

[0023] Figure 5 This is a schematic diagram of the combined structure of the filter media storage frame, aeration plate, scraper strip, and scraper frame of the aeration device for a biological filter with cleaning function disclosed in this invention.

[0024] Figure 6 This is a cross-sectional view of the filter media storage frame disclosed in the aeration device for a biological filter with cleaning function of the present invention.

[0025] Figure 7 for Figure 6 Enlarged view of point A;

[0026] Figure 8 This is a schematic diagram of the combined structure of the filter media storage frame, sliding bar, and push rod I disclosed in the aeration device for a biological filter with cleaning function of the present invention.

[0027] Figure 9 This is a schematic diagram of the combined structure of the aeration plate and the shielding block of the aeration device for a biological filter with cleaning function disclosed in the present invention.

[0028] Figure 10 This is a diagram showing the opened state of the filter media storage frame of the aeration device for a biological filter with cleaning function disclosed in this invention.

[0029] The meanings of the reference numerals in the attached diagram are as follows: 1-Aerated biological filter, 2-Aeration pipe I, 3-Lower plate, 4-Upper plate, 5-Filter media storage frame, 6-Aeration plate, 7-Blocking plate I, 8-Supporting layer, 9-Water distribution frame, 10-Rotating shaft, 11-Aeration pipe II, 12-Motor, 101-Gear, 102-Sliding strip, 103-Rack, 104-Push rod I, 201-Scraper strip, 202-Scraper frame, 301-Push rod II, 302-Blocking plate II, 111-Shielding block, 1001-Discharge pipe, 1002-Pipe, 1003-Discharge section, 1004-Lifting gate, 5001-Matching trough, 5004-Connecting rod, 5002-Arc-shaped back plate, 5003-Hanging ring, 6001-Aeration hole, 6002-Sleeve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0031] Example 1

[0032] An aeration device for a biological filter with cleaning function, such as Figures 1-10 As shown, it includes an aerated biological filter 1 and aeration pipes I2; the aerated biological filter 1 is equipped with a pipe 1002, and the pipe 1002 is connected to an external water pump, and the aerated biological filter 1 is equipped with a discharge section 1003; the aerated biological filter 1 is detachably connected to six aeration pipes I2, and several air outlets are provided on the upper side of the aeration pipes I2, and all the aeration pipes I2 are connected to an external air pump.

[0033] It also includes filter media storage frames 5, aeration plates 6, support layers 8, water distribution frames 9, aeration pipes II 11, and sealing components; the aerated biological filter 1 is connected to three filter media storage frames 5, each with a filter screen at the bottom and hollow side walls, and all filter media storage frames 5 are interconnected via air pipes; the aerated biological filter 1 has four rectangularly distributed aeration pipes II 11, all of which are connected to adjacent filter media storage frames 5, and all filter media storage frames 5 contain filter media with attached microorganisms; the filter media storage frames 5 are connected to seven aeration plates 6, and... The aeration plate 6 is provided with several aeration holes 6001, and the aeration plate 6 is connected to the filter media storage frame 5 through the sleeve 6002. The aeration plate 6 aerates the water above the aerated biological filter tank 1. The aerated biological filter tank 1 is fixedly connected to a support layer 8, which is located below the filter media storage frame 5. The aerated biological filter tank 1 is detachably connected to a water distribution frame 9, and several water spray nozzles are provided on the lower side of the water distribution frame 9. The water distribution frame 9 is connected to an external water pump. The aerated biological filter tank 1 is connected to a sealing component, which seals the position of the aeration pipe I2, making it easy to pull out the aeration pipe I2 for maintenance.

[0034] The sealing assembly includes a lower sealing plate 3, an upper sealing plate 4, a rotating shaft 10, and a motor 12. Six lower sealing plates 3 are fixedly connected to the aerated biological filter 1, and each aeration pipe I2 is located inside the corresponding lower sealing plate 3. The inner side of the lower sealing plate 3 is in contact with the aeration pipe I2, and a rubber strip is provided on the lower side of each lower sealing plate 3. Six motors 12 are fixedly connected to the rear side of the aerated biological filter 1. A rotating shaft 10 is fixedly connected to the output end of each motor 12. Each rotating shaft 10 is rotatably connected to the corresponding lower sealing plate 3. An upper sealing plate 4 is fixedly connected to each rotating shaft 10, and the inner side of the upper sealing plate 4 is adapted to the shape and size of the aeration pipe I2. A rubber strip is provided on the upper side of each upper sealing plate 4. The upper sealing plate 4 is rotated to cover the lower sealing plate 3 by the motor 12, thus achieving a seal at the location of the aeration pipe I2.

[0035] It also includes a baffle plate I7; both the middle and right filter media storage frames 5 are fixed with a baffle plate I7, which blocks the gaps between the filter media storage frames 5 to prevent sewage from entering the gaps between the filter media storage frames 5.

[0036] It also includes a shielding block 111; all aeration plates 6 are fixed with two shielding blocks 111, and all shielding blocks 111 correspond to the positions of aeration holes 6001.

[0037] It also includes gears 101, sliding bars 102, racks 103, and push rods I 104; the filter media storage frame 5 is rotatably connected to the aeration plate 6; all filter media storage frames 5 are rotatably connected to seven gears 101, and all gears 101 are fixedly connected to the adjacent aeration plate 6; all filter media storage frames 5 are slidably connected to a sliding bar 102; all sliding bars 102 are fixedly connected to seven racks 103, and the racks 103 mesh with the adjacent gears 101; all filter media storage frames 5 are fixedly connected to a push rod I 104, and the telescopic end of the push rod I 104 is fixedly connected to the adjacent sliding bar 102.

[0038] It also includes push rods II 301 and baffle plates II 302; the aerated biological filter 1 is fixedly connected to four rectangularly distributed push rods II 301; and the telescopic ends of the two corresponding push rods II 301 are bolted to the adjacent filter media storage frames 5, and the leftmost and rightmost filter media storage frames 5 are movably connected to the aerated biological filter 1 through connecting rods 5004; the middle and rightmost filter media storage frames 5 are fixedly connected to a baffle plate II 302, and the middle and leftmost filter media storage frames 5 are provided with mating grooves 5001 that cooperate with the baffle plate II 302.

[0039] Four discharge pipes 1001 are installed on the rear side of the aerated biological filter 1, and all the discharge pipes 1001 correspond to the positions of the adjacent baffle plate II 302 or discharge section 1003.

[0040] The working steps of the above embodiment are as follows: The aerated biological filter 1 is set up on the ground. First, sewage is input into the water distribution frame 9 through an external water pump. Then, the sewage is sprayed out from the spray nozzle of the water distribution frame 9 and evenly distributed in three filter media storage frames 5. Then, the sewage flows downward in the filter media storage frames 5. During the downward flow of the sewage, some impurities in the sewage are filtered out by the filter media in the filter media storage frames 5, and some harmful substances in the sewage are removed by the microorganisms attached to the filter media. When the sewage flows to the bottom of the support layer 8, the filtration of sewage and the removal of harmful substances are completed. Then, it is discharged to the next purification process through the pipe 1002.

[0041] Initially, the upper plate 4 and lower plate 3 are open, meaning the upper plate 4 does not obstruct the aeration operation of aeration pipe I2. During wastewater filtration, air is pumped into aeration pipe I2, and then the air is ejected from the outlet of aeration pipe I2, forming a large number of bubbles. These bubbles then float upwards, and the water in the aerated biological filter 1 begins to absorb oxygen from the air, increasing the oxygen content in the water. Air is then pumped into aeration pipe II11 via a pump connected to aeration pipe II11, and then flows from aeration pipe II11 into the filter media storage frame 5, then through sleeve 6002 into aeration plate 6, finally ejecting from aeration holes 6001 to generate bubbles. This allows the water above the aerated biological filter 1 to better absorb oxygen. During the bubble generation process at aeration holes 6001, air is drawn into the filter media storage frame 5, then through sleeve 6002 into aeration plate 6, and finally ejected from aeration holes 6001, generating bubbles. This allows the water above the aeration biological filter 1 to better absorb oxygen. Push rod I 104 repeatedly pushes and pulls sliding bar 102 and rack 103 back and forth. Since rack 103 meshes with gear 101, gear 101 rotates repeatedly. Gear 101 drives aeration plate 6 to rotate repeatedly, thereby turning the filter media and water in filter media storage frame 5 through aeration plate 6. This allows the microorganisms attached to the filter media in filter media storage frame 5 to absorb oxygen in the water evenly, and allows the water above the aerated biological filter 1 to absorb oxygen from the bubbles generated by aeration holes 6001 more evenly, enhancing the aeration effect of aeration holes 6001. This aeration targets the water above the aerated biological filter 1, avoiding the problem of uneven oxygen content in the water, which affects the cultivation of microorganisms, as the water below can absorb more oxygen while the water above cannot absorb enough oxygen.

[0042] Since the filter media storage box 5 contains a large amount of filter media and filtered impurities, and the filter media and filtered impurities fall onto the aeration holes 6001, they can easily clog the aeration holes 6001, preventing the aeration holes 6001 from aerating normally. Therefore, by adding a blocking block 111, the filter media and filtered impurities are prevented from falling onto the aeration holes 6001, thus avoiding clogging of the aeration holes 6001.

[0043] After the aerated biological filter 1 has purified the wastewater for a period of time, when a large amount of impurities accumulate in the filter media in the filter media storage frame 5, backwashing is required to discharge the impurities and clean the filter media. Backwashing typically involves continuously feeding clean water into the bottom of the biological filter, causing the water to rise and overflow from the top of the filter media storage frame 5, thus flushing the impurities out of the filter media. However, impurities located in the middle of the filter media storage frame 5 are relatively far from the discharge section 1003, making them more susceptible to backwashing. Impurities in the middle of the filter media storage frame 5 are difficult to overflow to the discharge section 1003, resulting in poor backwashing effect. Therefore, when backwashing is required, all push rods II 301 push the left and right filter media storage frames 5 to move in opposite directions, causing the baffle plate II 302 to slide away from the corresponding mating groove 5001. When the baffle plate II 302 is about to move out of the mating groove 5001, the push rods II 301 stop pushing the left and right filter media storage frames 5 to move. At this time, the filter media storage frame 5 and the baffle plate II 302 are in the following position: Figure 10 As shown, the filter media storage frame 5, the baffle plate II 302, and the inner wall of the aerated biological filter 1 together form a rectangular trough with an opening only at the top. This prevents the backwash water from entering the gap between two adjacent filter media storage frames 5 from the bottom during subsequent backwashing. The water pump then supplies clean water to the bottom of the aerated biological filter 1 through pipe 1002. The clean water then begins to rise. When the water level reaches the filter media storage frame 5, it is blocked by the baffle plate II 302 and cannot directly enter the gap between two adjacent filter media storage frames 5. Instead, it enters the filter media storage frame 5 through the filter screen at the bottom and continues to rise. The clean water flushes out impurities from the filter media within the storage frame 5. The filter media typically has a suitable particle size distribution and sufficient density, allowing it to effectively dissipate impurities in the water. The impurities are not easily washed away by the impact of the flow. Then, the push rod I104 repeatedly pushes and pulls the rack 103, causing the aeration plate 6 to rotate repeatedly. The aeration plate 6 repeatedly flips the filter media in the filter media storage frame 5, so that the clean water can better flush out the impurities in the filter media in the filter media storage frame 5. Then, when the clean water surges upward to the top of the filter media storage frame 5, the clean water begins to overflow from the filter media storage frame 5 to the left and right sides of the filter media storage frame 5, thereby causing the impurities to overflow from the left and right sides of the filter media storage frame 5 to the discharge part 1003 and the baffle plate II302. Therefore, the clean water can overflow from the gap between the three filter media storage frames 5, which greatly reduces the distance that the impurities need to move when overflowing. This avoids the problem that the impurities in the middle of the filter media storage frame 5 are difficult to overflow and be discharged from the filter media storage frame 5 because the impurities are far away from the discharge part 1003, resulting in poor backwashing effect.

[0044] When impurities and water overflow onto the discharge section 1003 and the baffle plate II 302, a water pump connected to the discharge pipe 1001 is started, thereby sucking the discharge section 1003 and the baffle plate II 302 through the discharge pipe 1001, thus removing the overflowing impurities and clean water, completing the backwashing of the filter media storage frame 5, and cleaning the filter media.

[0045] When aeration pipe I2 needs maintenance, the water pump connected to the water distribution frame 9 is controlled to stop transporting sewage, thereby suspending the sewage purification work. Then, the motor 12 on the rear side of the aerated biological filter 1 drives the upper plate 4 to rotate until it covers the lower plate 3. At this time, the upper plate 4 and the lower plate 3 are in a completely sealed state. Then, the staff can pull out all the aeration pipes I2 from the front side of the aerated biological filter 1 for maintenance. Since the upper plate 4 and the lower plate 3 are in a sealed state, the water in the aerated biological filter 1 will not flow out. Compared with the existing technology that requires draining the water in the aerated biological filter 1 and removing all the parts above the aeration device to maintain the aeration pipes I2, the above work is more convenient.

[0046] Example 2

[0047] Based on Example 1, such as Figure 5 and Figure 8 As shown, the filter media storage frame 5 is provided with an arc-shaped back plate 5002, and the height of the arc-shaped back plate 5002 is higher than the side plate of the filter media storage frame 5; the arc-shaped back plate 5002 is provided with a lifting ring 5003; the aerated biological filter tank 1 is detachably provided with a lifting door 1004, the lifting door 1004 is provided with two buckles, and the contact parts between the lifting door 1004 and the aerated biological filter tank 1 are provided with rubber sealing strips.

[0048] It also includes a scraper bar 201; each pair of adjacent blocking blocks 111 is rotatably connected to the scraper bar 201, which scrapes the filter material from the left and right sides of the filter material storage frame 5.

[0049] It also includes a scraper 202; all the filter media storage frames 5 are slidably connected to a scraper 202, and the sliding strip 102 is fixedly connected to the adjacent scraper 202. The scraper 202 scrapes the filter media off the inner bottom surface of the filter media storage frame 5 to prevent the filter media from adhering to the inner bottom surface of the filter media storage frame 5.

[0050] The working steps of the above embodiment are as follows: Since wastewater may contain heavy metals or other toxic chemicals that microorganisms cannot treat, these substances gradually accumulate over time, causing severe contamination of the filter media. These contaminants are difficult to remove using conventional methods such as backwashing. Therefore, after a long period of operation, the filter media needs to be replaced. When replacement is required, the operator first needs to disassemble the water distribution frame 9. Then, using a crane, the water distribution frame 9 is lifted out of the aerated biological filter tank 1. Next, the crane uses a locking ring to lift and open the lifting door 1004. Then, the operator... The bolts connecting the telescopic end of push rod II 301 to the filter media storage frame 5 are removed. Then, the lifting ring 5003 is hooked onto the hook of the crane, thereby lifting the rear end of the filter media storage frame 5. This causes the filter media storage frame 5 to rotate around the connecting rod 5004, tilting it. When the filter media storage frame 5 tilts to 20 to 30 degrees, the crane is stopped. Subsequently, push rod I 104 repeatedly pushes and pulls the rack 103, causing it to move back and forth repeatedly, which in turn causes the aeration plate 6 to rotate repeatedly. This repeatedly pushes the filter media through the aeration plate 6, allowing the filter media to be poured out of the filter media storage frame 5 more quickly. This ensures that the filter media does not get stuck on the aeration plate 6, thus preventing the aeration plate 6 from blocking the filter media from pouring out. It should be noted that because the filter media contains a large amount of moisture, the moisture between the filter media increases the adhesive force, increasing the friction between the filter media and the surface of the filter media storage frame 5. This causes some filter media to adhere to the inner and bottom walls of the filter media storage frame 5, preventing some filter media from being poured out normally, requiring subsequent handling by personnel and increasing their workload. Therefore, by repeatedly rotating the aeration plate 6, the scraper strip 201 moves up and down repeatedly. The scraper 201 separates the filter media from the left and right sides of the filter media storage frame 5, preventing the filter media from adhering to the left and right sides of the filter media storage frame 5. Furthermore, as the scraper 201 moves back and forth repeatedly, it also drives the scraper frame 202 to move back and forth repeatedly, thereby separating the filter media from the inner bottom surface of the filter media storage frame 5. This prevents the filter media from adhering to the inner bottom surface of the filter media storage frame 5, thus avoiding the problem of some filter media adhering to the filter media storage frame 5, preventing some filter media from being properly poured out, and making it difficult for staff to replace the filter media.

[0051] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for illustrative purposes only and is not intended to limit the invention; rather, the scope of protection is defined by the content of the claims.

Claims

1. An aeration device for a biological filter with cleaning function, comprising an aeration biological filter (1) and an aeration pipe I (2); the aeration biological filter (1) is provided with a pipeline (1002), and the pipeline (1002) is communicated with an external water pump, and the aeration biological filter (1) is provided with a discharge part (1003); the aeration biological filter (1) is detachably connected with a plurality of aeration pipes I (2), and the upper side of the aeration pipe I (2) is provided with a plurality of air outlets, and all the aeration pipes I (2) are communicated with an external air pump; characterized in that: The utility model also includes filter material storage frame (5), aeration plate (6), support layer (8), water distribution frame (9), aeration pipe II (11) and sealing assembly; aeration biological filter (1) is connected with a plurality of filter material storage frames (5), the bottom of filter material storage frame (5) is provided with filter screen, and the side wall of filter material storage frame (5) is hollow, and all filter material storage frames (5) are communicated with each other through air pipe; aeration biological filter (1) is provided with a plurality of aeration pipe II (11), and all aeration pipe II (11) are communicated with adjacent filter material storage frame (5), and all filter material storage frames (5) are stored with filter material adhered with microorganism; filter material storage frame (5) is connected with a plurality of aeration plate (6), and aeration plate (6) is provided with a plurality of aeration hole (6001), and aeration plate (6) is communicated with filter material storage frame (5) through sleeve (6002); aeration biological filter (1) is fixedly connected with support layer (8), and support layer (8) is below filter material storage frame (5); aeration biological filter (1) is detachably connected with water distribution frame (9), and the lower side of water distribution frame (9) is provided with a plurality of water injection ports, and water distribution frame (9) is communicated with external water pump; aeration biological filter (1) is connected with sealing assembly; ​ The sealing assembly includes lower cover plate (3), upper cover plate (4), rotating shaft (10) and motor (12); aeration biological filter (1) is fixedly connected with a plurality of lower cover plates (3), and each aeration pipe I (2) is located on the inner side of the corresponding lower cover plate (3), and the inner side of the lower cover plate (3) is attached to the aeration pipe I (2), and the lower side of each lower cover plate (3) is provided with a rubber strip; aeration biological filter (1) is fixedly connected with a plurality of motors (12); the output end of each motor (12) is fixedly connected with a rotating shaft (10); each rotating shaft (10) is rotatably connected with the corresponding lower cover plate (3); each rotating shaft (10) is fixedly connected with an upper cover plate (4), and the inner side surface of the upper cover plate (4) is adapted to the shape and size of the aeration pipe I (2), and the upper side of each upper cover plate (4) is provided with a rubber strip.

2. The aerating device for a biological filter having a cleaning function according to claim 1, characterized in that: It also includes barrier plate I (7); the filter material storage frame (5) located in the middle and the right side is fixedly connected with one barrier plate I (7).

3. The aerating device for a biological filter having a cleaning function according to claim 1, characterized in that: It also includes shielding block (111); all aeration plates (6) are fixedly connected with a plurality of shielding blocks (111), and all shielding blocks (111) correspond to the positions of aeration holes (6001).

4. The aerating device for a biological filter having a cleaning function according to claim 1, characterized in that: It also includes gear (101), sliding bar (102), rack (103) and push rod I (104); filter material storage frame (5) and aeration plate (6) are rotatably connected; all filter material storage frames (5) are rotatably connected with a plurality of gears (101), and all gears (101) are fixedly connected with adjacent aeration plates (6); all filter material storage frames (5) are slidably connected with a sliding bar (102); all sliding bars (102) are fixedly connected with a plurality of racks (103), and the racks (103) are engaged with adjacent gears (101); all filter material storage frames (5) are fixedly connected with a push rod I (104), and the telescopic end of the push rod I (104) is fixedly connected with adjacent sliding bar (102).

5. The aeration device for a biological filter having a cleaning function according to claim 1, characterized in that: It also includes There are push rod II (301) and barrier plate II (302); the biological aerated filter (1) is fixedly connected with a plurality of push rod II (301); and the telescopic ends of every two push rod II (301) corresponding to each other are fixedly connected with adjacent filter material storage frame (5), and the leftmost and rightmost filter material storage frames (5) are movably connected with the biological aerated filter (1) through connecting rod (5004); the filter material storage frames (5) located in the middle and on the right are fixedly connected with a barrier plate II (302), and the filter material storage frames (5) located in the middle and on the left are provided with a matching groove (5001) matched with the barrier plate II (302).

6. The aerating device for a biological filter having a cleaning function according to claim 5, characterized in that: The biological aerated filter (1) is provided with a plurality of discharge pipes (1001), and all the discharge pipes (1001) correspond to the positions of adjacent barrier plate II (302) or discharge part (1003).

7. The aerating device for a biological filter having a cleaning function according to claim 1, characterized in that: The filter material storage frame (5) is provided with an arc-shaped back plate (5002), and the height of the arc-shaped back plate (5002) is higher than that of the side plate of the filter material storage frame (5); the arc-shaped back plate (5002) is provided with a lifting ring (5003); the biological aerated filter (1) is detachably provided with a lifting door (1004), a plurality of buckles are arranged on the lifting door (1004), and the contact parts of the lifting door (1004) and the biological aerated filter (1) are provided with rubber sealing strips.

8. The aerating device for a biological filter having a cleaning function according to claim 3, characterized in that: It also includes a scraping strip (201); every two adjacent shielding blocks (111) are rotatably connected with a scraping strip (201).

9. The aerating device for a biological filter having a cleaning function according to claim 4, characterized in that: It also includes a scraping frame (202); all filter material storage frames (5) are slidably connected with a scraping frame (202), and the sliding bar (102) is fixedly connected with adjacent scraping frame (202). It also includes a scraping frame (202); all filter material storage frames (5) are slidably connected with a scraping frame (202), and the sliding bar (102) is fixedly connected with adjacent scraping frame (202).

Images