A flushing device and a sulfur autotrophic denitrification filter

Abstract

The utility model discloses a kind of flushing device and sulfur autotrophic denitrification filter tank, flushing device is configured in connecting filter tank shell, filter tank shell is formed with filter groove inside, comprising: flushing assembly, sliding member and linear drive, flushing assembly includes at least one flushing head, flushing head is set relative to the bottom inner wall of filter groove, sliding member is connected in filter tank shell, and can slide relative to the bottom inner wall of filter groove, configured in connecting flushing head, linear drive is connected in filter tank shell and sliding member, for driving sliding member and at least one flushing head along the length direction of filter groove relative to the bottom inner wall of filter groove sliding, to flush the bottom inner wall of filter groove.The utility model can effectively solve the problem that if the bottom inner wall of filter tank body is blocked by large-particle impurities during use, water wheel cannot rotate normally, resulting in cleaning function failure.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, specifically to a flushing device and a sulfur autotrophic denitrification filter. Background Technology

[0002] The sulfur autotrophic denitrification biofilter is a novel fixed-bed downflow biofilm reactor that utilizes inorganic carbon as a carbon source by denitrifying thiobacilli microorganisms. It mainly uses inorganic matter as an electron donor for nitrate nitrogen reduction to complete microbial metabolism, reducing NO3-N in nitrate nitrogen-polluted water to N2 and releasing it into the atmosphere, ultimately achieving TN removal.

[0003] For example, Chinese utility model patent CN221344213U, entitled "A Sulfur Autotrophic Denitrification Filter," includes a filter body with a drive motor mounted on its right side via screws. The output end of the drive motor has a rotating shaft. The filter body also includes three discharge pipes with grooves and sealed below its bottom. A rotating shaft is mounted inside the filter body via bearings. This sulfur autotrophic denitrification filter is equipped with a water wheel and a second cleaning scraper. Hollow mounting frames are mounted inside each of the three discharge pipes via screws. Rotating rods are mounted inside each of the three mounting frames via bearings, and a water wheel is mounted above each of the three rotating rods. During discharge, the water wheel converts the potential energy of the flowing water into mechanical energy, which then drives the threaded mounting rods of the rotating rods to rotate the second cleaning scraper, preventing impurities from adhering to the inner wall of the discharge pipes and causing blockage.

[0004] Driven by the water flow, the water wheel can drive the second cleaning scraper to rotate relative to the discharge pipe, and prevent impurities in the liquid from sticking to the inner wall of the discharge pipe and causing blockage. If large particles of impurities form on the bottom inner wall of the filter body during use, causing blockage, the water wheel cannot rotate normally and the cleaning function will fail. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a flushing device and a sulfur autotrophic denitrification filter to solve the technical problem in the prior art where large particles of impurities form on the bottom inner wall of the filter body during use, causing blockage and preventing the water wheel from rotating normally, thus leading to the failure of the cleaning function.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a rinsing device, configured to connect to a filter tank housing, wherein a filter tank housing has a filter groove formed inside, comprising: A rinsing assembly includes at least one rinsing head disposed relative to the bottom inner wall of the filter tank; A sliding member, connected to the filter housing and capable of sliding relative to the bottom inner wall of the filter tank, is disposed on the flushing head; and A linear drive unit, connected to the filter tank housing and the sliding member, is used to drive the sliding member and at least one flushing head to slide relative to the bottom inner wall of the filter tank along the length direction of the filter tank, so as to flush the bottom inner wall of the filter tank.

[0007] In some embodiments, the rinsing assembly further includes a temporary storage housing and at least one peristaltic pump. The temporary storage housing is hollow and communicates with the filter tank. The peristaltic pump is connected to the temporary storage housing, and the inlet end of the peristaltic pump is communicated with the interior of the temporary storage housing, while the outlet end is communicated with the rinsing head.

[0008] In some embodiments, the sliding member includes two first guide rods and a sliding block. The two first guide rods are parallel to each other and spaced apart along the length of the filter tank. The sliding block is slidably sleeved on the two first guide rods and is configured to connect to the rinsing head.

[0009] In some embodiments, the slider further includes at least one hinge seat connected to the slider and the flushing head to adjust the angle between the flushing head and the bottom inner wall of the filter tank.

[0010] In some embodiments, the sliding block is strip-shaped, and the sliding member has multiple hinge seats. The multiple hinge seats are spaced apart along the length direction of the sliding block. The flushing assembly also includes multiple telescopic hoses, each telescopic hose corresponding to a flushing head. One end of each telescopic hose is connected to a plurality of flushing heads, and the other end of each telescopic hose is connected to the liquid outlet of the peristaltic pump.

[0011] In some embodiments, the sliding block is further provided with a threaded hole, and the linear drive includes a screw and a drive motor. One end of the screw is rotatably connected to the filter housing, and the other end is threadedly connected to the threaded hole of the sliding block. The fixed end of the drive motor is connected to the filter housing, and the output shaft is connected to the screw, for driving the sliding block and the plurality of flushing heads to slide along the guide of the first guide rod.

[0012] In some embodiments, the rinsing device further includes a scraping assembly, which includes a scraper plate having a connecting end and an abutting end. The connecting end of the scraper plate is connected to the sliding block, and the abutting end is movably abutting against the bottom inner wall of the filter tank.

[0013] In some embodiments, the abutting end of the scraper is an elastic structure, and the cross-sectional area of ​​the abutting end of the scraper gradually decreases along the direction away from the connecting end of the scraper.

[0014] In some embodiments, the sliding block has a plurality of guide holes on the bottom inner wall of the filter tank, and the scraping assembly further includes a plurality of second guide rods and at least one elastic part. One end of the second guide rod is connected to the connecting end of the scraping plate, and the other end is slidably inserted into the guide hole. The elastic part is disposed between the connecting ends of the sliding block and the scraping plate, and is connected to both the connecting ends of the sliding block and the scraping plate.

[0015] Secondly, this utility model also provides a sulfur autotrophic denitrification filter, including a filter shell and a flushing device as described above.

[0016] Compared with the prior art, the beneficial effects of the flushing device and sulfur autotrophic denitrification filter provided by this utility model include: at least one flushing head is arranged relative to the inner wall of the bottom of the filter tank of the filter tank shell, and is connected to the filter tank shell via a sliding member. The sliding member and the flushing head can slide relative to the inner wall of the bottom of the filter tank along the length direction of the filter tank under the drive of a linear drive member, so as to flush the inner wall of the bottom of the filter tank. Compared with the prior art, by setting the flushing head relative to the inner wall of the bottom of the filter tank, the flushing head is used to flush the sediment or adhesive material formed on the inner wall of the bottom of the filter tank, avoiding the formation of large particles. At the same time, the flushing head is driven by the linear drive member to slide relative to the inner wall of the bottom of the filter tank along the length direction of the filter tank to increase the flushing range, effectively preventing the formation of large particles of sediment or impurities in the filter tank from causing the water wheel to jam. This solves the technical problem in the prior art that if large particles of impurities form on the inner wall of the bottom of the filter tank body during use, causing blockage, the water wheel will not be able to rotate normally, thus leading to the failure of the cleaning function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a flushing device and a sulfur autotrophic denitrification filter provided in an embodiment of the present invention; Figure 2 This is a schematic diagram from another perspective of a flushing device and a sulfur autotrophic denitrification filter provided in one embodiment of the present invention; Figure 3 This is a cross-sectional view of the sliding block and the first guide rod connected according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the filter housing connected to the sliding block and scraping assembly according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: Filter housing 100; rinsing assembly 200; rinsing head 210; temporary storage housing 220; peristaltic pump 230; telescopic hose 240; sliding component 300; first guide rod 310; sliding block 320; hinge seat 330; linear drive component 400; screw 410; drive motor 420; scraper assembly 500; scraper plate 510; second guide rod 520; elastic part 530. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] To address the technical problem that large particles of impurities forming on the bottom inner wall of the filter tank during use can cause blockages, preventing the water impeller from rotating properly and thus rendering the cleaning function ineffective, this invention provides a flushing device and a sulfur autotrophic denitrification filter. The device utilizes a flushing head 210 positioned relative to the bottom inner wall of the filter tank to flush away sediment or adhesions, preventing the formation of large particles. Simultaneously, a linear drive 400 drives the flushing head 210 to slide along the length of the filter tank relative to the bottom inner wall, increasing the flushing range and effectively preventing large particles of sediment or impurities from causing the water impeller to jam.

[0021] Please see Figure 1 , Figure 2 , Figure 1 This is a schematic diagram of a flushing device and a sulfur autotrophic denitrification filter according to an embodiment of the present invention. The flushing device is configured to connect to the filter housing 100. The filter housing 100 has a filter tank formed inside. The device includes a flushing assembly 200, a sliding member 300, and a linear drive member 400. The flushing assembly 200 includes at least one flushing head 210, which is disposed relative to the bottom inner wall of the filter tank. The sliding member 300 is connected to the filter housing 100 and can slide relative to the bottom inner wall of the filter tank. The linear drive member 400 is connected to the filter housing 100 and the sliding member 300 and is used to drive the sliding member 300 and at least one flushing head 210 to slide relative to the bottom inner wall of the filter tank along the length direction of the filter tank to flush the bottom inner wall of the filter tank.

[0022] In this device, compared to existing technologies, a flushing head 210 is installed relative to the inner wall of the bottom of the filter tank. The flushing head 210 is used to flush away the sediment or adhesives formed on the inner wall of the bottom of the filter tank, thus preventing the formation of large particles. At the same time, a linear drive component 400 drives the flushing head 210 to slide relative to the inner wall of the bottom of the filter tank along the length of the filter tank, thereby increasing the flushing range. This effectively prevents the formation of large particles of sediment or impurities in the filter tank, which could cause the water wheel to jam. This solves the technical problem in existing technologies where large particles of impurities forming on the inner wall of the bottom of the filter tank can cause blockages, preventing the water wheel from rotating normally and thus causing the cleaning function to fail.

[0023] Furthermore, by using the flushing head 210 to flush the bottom inner wall of the filter tank, a dual flushing effect of water and air bubbles can be formed. As the air bubbles rise, they can effectively scrub the surface of the filter media particles, shake off the attached biofilm and impurities, and greatly improve the flushing effect. This will not be elaborated further here.

[0024] Furthermore, the flushing head 210 here is a common and readily available backwash nozzle on the market, which can produce a dual flushing effect of water and air bubbles. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0025] In this embodiment, as Figure 1 , Figure 2 As shown, the rinsing assembly 200 also includes a temporary storage housing 220 and at least one peristaltic pump 230. The interior of the temporary storage housing 220 is hollow and connected to the filter tank. The peristaltic pump 230 is connected to the temporary storage housing 220, and the inlet end of the peristaltic pump 230 is connected to the interior of the temporary storage housing 220, and the outlet end is connected to the rinsing head 210.

[0026] The temporary storage housing 220 is used to temporarily store the treated effluent or clean tap water of the filter itself. The peristaltic pump 230 is used to transport the clean tap water or the treated effluent of the filter itself in the temporary storage housing 220 to the flushing head 210 to form a backwashing flushing structure.

[0027] Furthermore, a booster pump can be used here to increase the impact force. Both the peristaltic pump 230 and the booster pump are corrosion resistant and are common and readily available equipment on the market. They are conventional setups known to those skilled in the art and will not be described in detail here.

[0028] In one embodiment, such as Figures 1 to 3 As shown, the sliding member 300 includes two first guide rods 310 and a sliding block 320. The two first guide rods 310 are parallel to each other and spaced apart along the length of the filter tank. The sliding block 320 is slidably sleeved on the two first guide rods 310 and is configured to connect to the rinsing head 210.

[0029] The two first guide rods 310 connect and guide the sliding of the sliding block 320.

[0030] Furthermore, the sliding block 320 here, together with the two first guide rods 310, has two through holes. The sliding block 320 and the first guide rods 310 are both common and readily available corrosion-resistant materials on the market, which is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0031] In one embodiment, such as Figure 1 As shown, the slider 300 also includes at least one hinge seat 330, which is connected to the slider 320 and the flushing head 210 to adjust the angle between the flushing head 210 and the bottom inner wall of the filter tank.

[0032] The rinsing head 210 is tilted relative to the bottom inner wall of the filter tank via the hinge seat 330, and its tilt angle can be adjusted adaptively.

[0033] Furthermore, a detachable connection formed by threaded holes and bolts can be used to allow the hinge seat 330 to continue rotating relative to the sliding block 320 by means of bolt abutment, thereby adjusting the inclination angle of the hinge seat 330 relative to the bottom inner wall of the filter tank.

[0034] In addition, in some embodiments, the hinge seat 330 is a common and readily available hinge connector, which is a conventional setting known to those skilled in the art and will not be described in detail here.

[0035] In one embodiment, such as Figure 2 , Figure 3 As shown, the sliding block 320 is strip-shaped, and the sliding member 300 has multiple hinge seats 330. The multiple hinge seats 330 are spaced apart along the length direction of the sliding block 320. The flushing assembly 200 also includes multiple telescopic hoses 240. The telescopic hoses 240 are arranged one-to-one with the flushing heads 210. One end of each of the multiple telescopic hoses 240 is connected to the multiple flushing heads 210, and the other end is connected to the liquid outlet of the peristaltic pump 230.

[0036] By sequentially and spaced out the flushing heads 210 along the length of the sliding block 320, the flushing effect can be improved.

[0037] Furthermore, the sliding block 320 here is strip-shaped and is arranged along the width direction of the filter tank.

[0038] In some embodiments, the telescopic hose 240 is a common and readily available telescopic hose structure that can extend or shorten as the sliding block moves. The telescopic hose 240 is corrosion resistant and is a conventional feature known to those skilled in the art, so it will not be described in detail here.

[0039] In this embodiment, as Figure 1 , Figure 2 As shown, the sliding block 320 is also provided with a threaded hole. The linear drive 400 includes a screw 410 and a drive motor 420. One end of the screw 410 is rotatably connected to the filter housing 100, and the other end is threadedly connected to the threaded hole of the sliding block 320. The fixed end of the drive motor 420 is connected to the filter housing 100, and the output shaft is connected to the screw 410. It is used to drive the sliding block 320 and multiple flushing heads 210 to slide along the guide of the first guide rod 310.

[0040] A linear drive structure similar to a ball screw and nut assembly is formed by the screw 410 and the threaded hole.

[0041] Furthermore, the linear drive component 400 here can also be a linear actuator motor, a hydraulic cylinder, or a pneumatic cylinder. The screw 410, the linear actuator motor, the hydraulic cylinder, and the pneumatic cylinder are all equipped with anti-corrosion coatings, which is a conventional feature known to those skilled in the art and will not be described in detail here.

[0042] In some embodiments, the drive motor 420 is a servo motor that is common and readily available on the market. It can realize the forward or reverse rotation of the screw 410, thereby driving the sliding block 320 and the rinsing head 210 to reciprocate, so as to improve rinsing efficiency. The drive motor 420 here is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0043] In this embodiment, as Figure 1 , Figure 4 As shown, the rinsing device also includes a scraper assembly 500, which includes a scraper plate 510. The scraper plate 510 has a connecting end and an abutting end. The connecting end of the scraper plate 510 is connected to the sliding block 320, and the abutting end is movably abutting against the bottom inner wall of the filter tank.

[0044] A scraper 510 is also provided on the sliding block 320. The scraper 510 can always abut against the bottom inner wall of the filter tank during the sliding process of the sliding block 320, thereby scraping off the adhesive material that has not been rinsed and discharged, thus avoiding the formation of sediment.

[0045] In one embodiment, such as Figure 4 As shown, the abutting end of the scraper 510 is an elastic structure, and the cross-sectional area of ​​the abutting end of the scraper 510 gradually decreases along the direction away from the connecting end of the scraper 510.

[0046] By utilizing the abutting end of the elastic scraper 510, the scraper 510 can always move and abut against the bottom inner wall of the filter tank, thereby improving the cleaning effect and effectively preventing the formation of large particles or impurities.

[0047] Furthermore, a rubber sleeve is fitted on the outer wall of the abutting end of the scraper 510 to form an elastic structure at the abutting end of the scraper 510. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0048] In one embodiment, such as Figure 4 As shown, the sliding block 320 has multiple guide holes on the bottom inner wall of the filter tank. The scraping assembly 500 also includes multiple second guide rods 520 and at least one elastic part 530. One end of the second guide rod 520 is connected to the connecting end of the scraper plate 510, and the other end is slidably inserted into the guide hole. The elastic part 530 is disposed between the connecting ends of the sliding block 320 and the scraper plate 510, and is connected to both the connecting ends of the sliding block 320 and the scraper plate 510.

[0049] By providing an elastic part 530, the elastic restoring force generated by the elastic part 530 pushes the abutting end of the scraper 510 to always abut against the bottom inner wall of the filter tank, thereby improving the cleaning effect.

[0050] Furthermore, the cooperation between the second guide rod 520 and the guide hole plays a connecting and guiding role in the sliding of the scraper 510 relative to the sliding block 320.

[0051] In some embodiments, the elastic part 530 is a common and readily available elastic block, spring, and elastic sheet. The surface of the elastic block, spring, and elastic sheet is provided with an anti-corrosion material. This is a conventional arrangement known to those skilled in the art and will not be described in detail here.

[0052] This embodiment also provides a sulfur autotrophic denitrification filter, including a filter shell 100 and a flushing device.

[0053] The flushing assembly 200 and the sliding member 300 are both slidably built into the filter housing 100, and the linear drive member 400 is externally placed in the filter housing 100 and is connected to both the flushing assembly 200 and the sliding member 300 for driving the flushing head 210 to slide relative to the bottom inner wall of the filter housing 100.

[0054] Furthermore, the filter housing 100 is also equipped with an agitator, a side wall scraping structure, and a discharge pipe scraping structure. The agitator and the side wall scraping structure share a common drive mechanism, which allows the drive mechanism to drive the agitator to stir while the side wall scraping structure can slide relative to the inner wall of the filter housing 100 and scrape off the material adhering to the inner wall of the filter housing 100. The discharge pipe scraping structure uses the force of water flow to clean the circumferential inner wall of the discharge pipe. For reference, please refer to Chinese Utility Model Patent No. CN221344213U, entitled "A Sulfur Autotrophic Denitrification Filter," which will not be elaborated here.

[0055] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail below: At least one flushing head 210 is disposed relative to the inner wall of the bottom of the filter tank of the filter housing 100 and connected to the filter housing 100 via a sliding member 300. Driven by a linear drive member 400, the sliding member 300 and the flushing head 210 can slide relative to the inner wall of the bottom of the filter tank along the length of the filter tank to flush the inner wall of the bottom of the filter tank. Compared to the prior art, by disposing the flushing head 210 relative to the inner wall of the bottom of the filter tank, the flushing head 210 is used to flush away sediment or adhesives formed on the inner wall of the bottom of the filter tank, preventing the formation of large particles. Simultaneously, the linear drive member 400 drives the flushing head 210 to slide relative to the inner wall of the bottom of the filter tank along the length of the filter tank to increase the flushing range, effectively preventing the formation of large particles of sediment or impurities in the filter tank that could cause the water impeller to jam.

[0056] In the specific working process of this utility model, during use, the stirring paddle, the side wall scraping structure, and the discharge pipe scraping structure operate, while the drive motor 420 works and drives the screw 410 to rotate around its own axis. After rotation, the screw 410 can push the sliding block 320, the flushing head 210, and the scraper 510 to slide together along the axis of the screw 410. Then, the peristaltic pump 230 works to send clean tap water or treated liquid from the temporary storage housing 220 into the flushing head 210, forming a backwash of the bottom inner wall of the filter tank. Finally, as the sliding block 320 moves, under the elastic restoring force of the elastic part 530, the abutting end of the scraper 510 always abuts against the bottom inner wall of the filter tank, which can form a secondary cleaning of the sediment or impurities adhering to the bottom inner wall of the filter tank, thereby effectively avoiding the formation of large particles of impurities and preventing the water wheel from failing to rotate normally.

[0057] This application, through the aforementioned structure, can solve the technical problem in the prior art where large particles of impurities form on the bottom inner wall of the filter body during use, causing blockage and preventing the water wheel from rotating normally, thus leading to the failure of the cleaning function.

[0058] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A rinsing device, disposed in connection with a filter housing, wherein a filter tank is formed inside the filter housing, characterized in that, include: A rinsing assembly includes at least one rinsing head disposed relative to the bottom inner wall of the filter tank; A sliding member, connected to the filter housing and capable of sliding relative to the bottom inner wall of the filter tank, is configured to be connected to the flushing head; as well as A linear drive unit, connected to the filter tank housing and the sliding member, is used to drive the sliding member and at least one flushing head to slide relative to the bottom inner wall of the filter tank along the length direction of the filter tank, so as to flush the bottom inner wall of the filter tank.

2. The rinsing device according to claim 1, characterized in that, The rinsing assembly further includes a temporary storage housing and at least one peristaltic pump. The temporary storage housing is hollow inside and connected to the filter tank. The peristaltic pump is connected to the temporary storage housing, and the inlet end of the peristaltic pump is connected to the interior of the temporary storage housing, while the outlet end is connected to the rinsing head.

3. The rinsing device according to claim 2, characterized in that, The sliding component includes two first guide rods and a sliding block. The two first guide rods are parallel to each other and spaced apart along the length of the filter tank. The sliding block is slidably sleeved on the two first guide rods and is configured to connect to the rinsing head.

4. The rinsing device according to claim 3, characterized in that, The sliding member further includes at least one hinge seat connected to the sliding block and the flushing head to adjust the angle between the flushing head and the bottom inner wall of the filter tank.

5. The rinsing device according to claim 4, characterized in that, The sliding block is strip-shaped, and the sliding member has multiple hinge seats. The multiple hinge seats are spaced apart along the length of the sliding block. The flushing assembly also includes multiple telescopic hoses, which are arranged one-to-one with the flushing heads. One end of each of the multiple telescopic hoses is connected to the multiple flushing heads, and the other end of each hose is connected to the liquid outlet of the peristaltic pump.

6. The rinsing device according to claim 3, characterized in that, The sliding block is also provided with a threaded hole. The linear drive includes a screw and a drive motor. One end of the screw is rotatably connected to the filter housing and the other end is threadedly connected to the threaded hole of the sliding block. The fixed end of the drive motor is connected to the filter housing and the output shaft is connected to the screw, which is used to drive the sliding block and the multiple flushing heads to slide along the guide of the first guide rod.

7. The rinsing device according to claim 3, characterized in that, The rinsing device further includes a scraping assembly, which includes a scraping plate. The scraping plate has a connecting end and an abutting end. The connecting end of the scraping plate is connected to the sliding block, and the abutting end is movably abutting against the bottom inner wall of the filter tank.

8. The rinsing device according to claim 7, characterized in that, The abutting end of the scraper is an elastic structure, and the cross-sectional area of ​​the abutting end of the scraper gradually decreases along the direction away from the connecting end of the scraper.

9. The rinsing device according to claim 8, characterized in that, The sliding block has multiple guide holes on the bottom inner wall of the filter tank. The scraping assembly also includes multiple second guide rods and at least one elastic part. One end of the second guide rod is connected to the connecting end of the scraping plate, and the other end is slidably inserted into the guide hole. The elastic part is disposed between the connecting ends of the sliding block and the scraping plate, and is connected to both the connecting ends of the sliding block and the scraping plate.

10. A sulfur-autotrophic denitrification filter, characterized in that, It includes a filter housing and a flushing device as described in any one of claims 1-9.

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