Double-oxygen-layer bio-membrane reactor for wastewater treatment

Abstract

The invention discloses a double-oxygen-layer bio-membrane reactor for wastewater treatment, and relates to the technical field of bio-membrane reactors, the double-oxygen-layer bio-membrane reactor comprises a main bin, the interior of the main bin is communicated with two oxygen supply pipes, the interior of each oxygen supply pipe is provided with at least two biofilm culturing devices, and the biofilm culturing devices are communicated with the main bin. The outer side of the main bin is fixedly connected with an auxiliary bin; the first opening and closing plate and the second opening and closing plate are driven by the connecting shaft to horizontally move, and the support is driven to horizontally move while the first opening and closing plate and the second opening and closing plate horizontally move, so that when the film hanging device on the support needs to be cleaned, the film hanging device is moved from the interior of the main bin to the interior of the auxiliary bin, and the cleaning efficiency is improved. According to the device, the membrane hanging device is moved into the auxiliary bin through the moving assembly for cleaning, so that the steps of disassembling and reassembling the main bin are reduced, the abrasion to parts during disassembling and reassembling of the main bin is reduced, and the service life of the reactor is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of biofilm reactors, in particular to a double oxygen layer biofilm reactor for wastewater treatment. Background Art

[0002] The double oxygen layer biofilm reactor in wastewater treatment is a highly efficient sewage treatment device that combines biofilm technology and oxygen supply system. First, microorganisms are hung on the surface of the biofilm component and oxygen is introduced. Then the wastewater is treated through the biofilm component with biofilm. Microorganisms grow on the biofilm component to form a biofilm, which is responsible for degrading organic matter and pollutants in the wastewater.

[0003] Patent No. "CN109734198B" mentions a double oxygen layer biofilm reactor for wastewater treatment, including a reactor container, a water inlet is provided at the lower part of the container, the water inlet is connected to a water inlet pump through a pipeline, a continuous water outlet is provided at the upper part of the container, a stirring device is provided at the center of the cavity bottom of the container, a hollow fiber membrane assembly as a biofilm carrier is arranged in the cavity of the container avoiding the stirring device, a water circulation outlet is provided at the upper part of the container, a water circulation inlet is provided at the lower part of the container, the water circulation outlet is located lower than the continuous water outlet, the water circulation outlet and the water circulation inlet are connected by a return water pipe, a circulation water pump is installed on the return water pipe, thereby forming a water circulation system;

[0004] When the hollow fiber membrane components of the double oxygen layer biofilm reactor for wastewater treatment need to be cleaned, the entire reactor needs to be disassembled. However, during the frequent disassembly and reassembly of the reactor, the connection parts between its components are prone to wear. For example, the seals may be deformed and damaged due to multiple disassemblies, resulting in reduced sealing of the reactor, and the pipe interfaces may become loose and worn, affecting the normal flow of the fluid in the reactor, and may even cause leakage, affecting the stable operation of the reactor, thereby reducing the service life of the reactor;

[0005] In order to solve the above problems, the inventors proposed a double oxygen layer biofilm reactor for wastewater treatment. Summary of the invention

[0006] In order to solve the above technical problems, a double oxygen layer biofilm reactor for wastewater treatment is provided. This technical solution solves the problem of cleaning hollow fiber membrane components proposed in the above background technology;

[0007] To achieve the above objectives, the present invention can be implemented by the following technical solutions:

[0008] The present invention provides a double oxygen layer biofilm reactor for wastewater treatment, comprising a main chamber, wherein the interior of the main chamber is connected with an oxygen supply pipe, wherein two oxygen supply pipes are provided, wherein a biofilm hanging device is provided inside the oxygen supply pipe, wherein no less than two biofilm hanging devices are provided, wherein an auxiliary chamber is fixedly connected to the outer side of the main chamber, wherein the auxiliary chamber is in the shape of an "I" character, wherein a first opening is provided on a side of the auxiliary chamber close to the main chamber, and a second opening is provided on a side of the auxiliary chamber away from the main chamber, wherein a moving component and a replacement component are provided inside the oxygen supply pipe and the auxiliary chamber, and wherein a cleaning component is provided inside the auxiliary chamber;

[0009] The moving assembly includes a servo motor fixedly connected to the attached warehouse, the servo motor is embedded in the attached warehouse, the output shaft of the servo motor is fixedly connected to the connecting shaft, the connecting shaft is fixedly connected to a gear 1 at one end away from the servo motor, the outer side of the gear 1 is meshed with a rack 1, and the rack 1 is provided with two upper and lower parts on the outside of the gear 1, the rack 1 located at the upper part is fixedly connected to a connecting block 1, the outer wall of the connecting block 1 is fixedly connected to an opening and closing plate 1 through a connecting plate, the rack 1 located at the lower part is fixedly connected to a connecting block 2, the bottom surface of the connecting block 2 is fixedly connected to an opening and closing plate 2, a sealing gasket is provided between the opening and closing plate 1 and the opening and closing plate 2, the output shaft of the servo motor is fixedly connected to a synchronous wheel 1, and the attached warehouse is rotatably connected to a synchronous wheel 2, the synchronous wheel 2 is fixedly connected to a threaded rod, the threaded rod is threadedly connected to a threaded block, the bottom surface of the threaded block is fixedly connected to a bracket, the side of the bracket away from the threaded block is fixedly connected to a slide plate, and the slide plate is slidably connected to a slide rod.

[0010] Preferably, the gear one is rotationally connected to the attached bin, a groove one is provided on a side of the attached bin close to the gear one, a groove two is provided on a side of the attached bin away from the gear one, and the two racks one are slidingly connected to the groove one.

[0011] Preferably, the synchronous wheel 1 is connected to the synchronous wheel 2 through a synchronous belt transmission, the threaded rod is rotationally connected to the main warehouse, the bracket is in an "I" shape, and the two ends of the sliding rod are fixedly connected to the main warehouse and the auxiliary warehouse respectively.

[0012] Preferably, the cleaning component includes an electric contact rod fixedly connected to the upper surface of the bracket, the electric contact rod is provided with an electric contact, a docking tube is fixedly connected in the attached warehouse, an electrode plate and a photosensitive sensor are provided in the docking tube, a cavity plate is fixedly connected in the attached warehouse, at least two cavity plates are provided, a plurality of nozzles are provided on the cavity plate, and a sewage outlet is provided on the outer wall of the attached warehouse.

[0013] Preferably, the electric contact rod is plugged into the docking sleeve, the cavity plate is externally connected to a hose, the other end of the hose is externally connected to a water pump, and the water pump is connected to a water storage tank.

[0014] Preferably, the replacement component includes a fixed block fixedly connected to the attached warehouse, and the side of the fixed block away from the servo motor is fixedly connected to a guide rod and a large compression spring, two guide rods are provided, and a slider 1 is slidably connected to the guide rod, and the bottom surface of the slider 1 is rotatably connected to a long connecting rod, and two long connecting rods are provided. The end of the long connecting rod away from the slider 1 is rotatably connected to an opening and closing door, and the opening and closing door is made of transparent material. A limit plate is fixedly connected in the attached warehouse, and no less than two limit plates are provided.

[0015] Preferably, one end of the guide rod away from the fixed block is fixedly connected with a clamping block, the large compression spring is fixedly connected to a sliding block, and the opening and closing door is slidably connected to a groove 2 provided in the attached bin.

[0016] Preferably, the replacement assembly also includes a rotating plate rotatably connected to the bracket, and the rotating plate is provided with no less than four, the surface of the rotating plate is rotatably connected with a short connecting rod, and each short connecting rod on the surface of the rotating plate is provided with two, and the two short connecting rods are rotatably connected to a slider 2 at one end away from the rotating plate, and the slider 2 is slidably connected to a guide rail, and the slider 2 is fixedly connected to a clamping piece, and the bracket is fixedly connected to a groove plate, and the groove plate is provided with no less than four, and a follower plate is slidably connected in the bracket, and no less than four follower plates are fixedly connected between the follower plate and the bracket, and a small compression spring is fixedly connected between the follower plate and the bracket, and the side wall of the follower plate is fixedly connected with a rack 2, and the side of the rack 2 away from the follower plate is meshed with a gear 2, and the gear 2 is fixedly connected to a synchronous wheel 3, and the bracket is rotatably connected with a synchronous wheel 4 with the same number of rotating plates, and the synchronous wheel 4 is coaxially fixedly connected to the rotating plate.

[0017] Preferably, both ends of the guide rail are fixedly connected to the bracket, the clamping member is located on the outside of the film hanging device, and the groove plate is snap-fitted with the film hanging device.

[0018] Preferably, the follower plate and the limit plate are located on the same horizontal line, the gear 2 is rotationally connected to the bracket, and the gear 2 is connected to the synchronous wheel 4 through a synchronous belt transmission.

[0019] From the above, the advantages of the present invention are:

[0020] The connecting shaft drives the opening and closing plates 1 and 2 to move horizontally, and at the same time as the opening and closing plates 1 and 2 move horizontally, the bracket is driven to move horizontally, so that when the film hanging device on the bracket needs to be cleaned, it is moved from the inside of the main bin to the inside of the auxiliary bin. Compared with the prior art, when the film hanging device needs to be cleaned, the main bin needs to be disassembled as a whole and then the main bin needs to be cleaned, the device moves the film hanging device to the inside of the auxiliary bin for cleaning through a moving assembly, which reduces the steps of disassembling and reassembling the main bin, reduces the wear on parts when disassembling and reassembling the main bin, and improves the service life of the reactor;

[0021] While the bracket is moving horizontally, the electric contacts on the electric contact rod contact the electrode plate, so that the bracket and the film-hanging device stay between the two cavity plates, and trigger the water pump to supply water to clean the surface of the film-hanging device, and the sewage and impurities generated during the cleaning process are discharged from the sewage outlet. Compared with the prior art, which cleans inside the main warehouse, the device can automatically trigger the water pump to supply water to clean the surface of the film-hanging device, reducing manual intervention, and through the set sewage outlet, the sewage and impurities flow out from the sewage outlet of the auxiliary warehouse, avoiding pollution inside the main warehouse;

[0022] Through the opening and closing door made of transparent material, the staff can observe whether the film hanging device is clean after cleaning. If it is not clean, it cannot process the next batch of wastewater. The servo motor can be controlled to open the opening and closing door, and the clamping part loosens the film hanging device, so as to facilitate the replacement of the film hanging device. Compared with the prior art, the installation of the film hanging device is fixed with nuts, which makes installation and disassembly inconvenient. The device clamps and loosens the film hanging device through the movement of the clamping part, avoiding the complicated disassembly and assembly process when replacing the film hanging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front perspective schematic diagram of the overall structure shown in the present invention;

[0024] Figure 2 It is a partially cutaway three-dimensional schematic diagram of the main compartment and the auxiliary compartment shown in the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of the servo motor and the connecting shaft related components shown in the present invention;

[0026] Figure 4 The present invention shows Figure 3 A is a partially enlarged three-dimensional schematic diagram;

[0027] Figure 5 It is a three-dimensional schematic diagram of the thread block and the bracket related parts shown in the present invention;

[0028] Figure 6It is a partial three-dimensional schematic diagram of the cleaning component shown in the present invention;

[0029] Figure 7 It is a partially cutaway three-dimensional schematic diagram of the docking tube shown in the present invention;

[0030] Figure 8 It is a three-dimensional schematic diagram of the related parts of the fixing block shown in the present invention;

[0031] Fig. 9 It is a three-dimensional schematic diagram of the connection relationship between the clamping member and the film hanging device shown in the present invention;

[0032] Fig.10 It is a partially cutaway three-dimensional schematic diagram of the bracket shown in the present invention;

[0033] Fig.11 It is a three-dimensional schematic diagram of the bracket shown in the present invention;

[0034] Fig.12 It is a bottom-up stereoscopic schematic diagram of the bracket shown in the present invention;

[0035] Fig.13 It is an exploded stereoscopic schematic diagram of the support and the film hanging device shown in the present invention.

[0036] Among them, the accompanying drawings in the present invention are:

[0037] 1. Main chamber; 2. Oxygen supply pipe; 3. Film forming device; 4. Auxiliary chamber;

[0038] Moving components: 51, servo motor; 52, connecting shaft; 53, gear 1; 54, rack 1; 55, connecting block 1; 56, opening and closing plate 1; 57, connecting block 2; 58, opening and closing plate 2; 59, synchronous wheel 1; 510, synchronous wheel 2; 511, threaded rod; 512, threaded block; 513, bracket; 514, slide plate; 515, slide rod;

[0039] Cleaning components: 61, electric contact rod; 62, docking tube; 63, electrode plate; 64, photosensor; 65, cavity plate; 66, sewage outlet;

[0040] Replacement components: 71, fixed block; 72, guide rod; 73, large compression spring; 74, slider one; 75, long connecting rod; 76, opening and closing door; 77, limit plate; 78, rotating plate; 79, short connecting rod; 710, slider two; 711, guide rail; 712, clamping part; 713, groove plate; 714, follower plate; 715, small compression spring; 716, rack two; 717, gear two; 718, synchronous wheel three; 719, synchronous wheel four. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] See also Figures 1 to 13 As shown, it is an embodiment provided by the present invention, and a double oxygen layer biofilm reactor for wastewater treatment is provided and will be described in detail below:

[0043] Embodiment 1:

[0044] A double oxygen layer biofilm reactor for wastewater treatment, such as Figure 1 and Figure 2 As shown, it includes a main warehouse 1, the interior of the main warehouse 1 is connected with an oxygen supply pipe 2, which is used to supply oxygen to the microorganisms on the biofilm device 3, two oxygen supply pipes 2 are provided, and the biofilm device 3 is provided inside the oxygen supply pipe 2, and at least two biofilm devices 3 are symmetrically provided, and the outer side of the main warehouse 1 is fixedly connected with an auxiliary warehouse 4, and the shape of the auxiliary warehouse 4 is an "I" shape, and the side of the auxiliary warehouse 4 close to the main warehouse 1 is provided with an opening 1, and the side of the auxiliary warehouse 4 away from the main warehouse 1 is provided with an opening 2, and the interior of the oxygen supply pipe 2 and the auxiliary warehouse 4 is provided with a moving component and a replacement component, and the interior of the auxiliary warehouse 4 is provided with a cleaning component;

[0045] like Figures 2 to 5 As shown, the moving assembly includes a servo motor 51 fixedly connected to the attached warehouse 4, the servo motor 51 is embedded in the attached warehouse 4, the output shaft of the servo motor 51 is fixedly connected to a connecting shaft 52, the end of the connecting shaft 52 away from the servo motor 51 is fixedly connected to a gear 53, the outer side of the gear 53 is meshedly connected to a rack 54, and two racks 54 are arranged on the outer side of the gear 53 in an upper and lower manner. The rack 54 located at the upper part is fixedly connected to a connecting block 55, and the outer wall of the connecting block 55 is fixedly connected to an opening and closing plate 56 through a connecting plate, and the rack 54 located at the lower part is fixedly connected to a connecting block 2 57, and the bottom surface of the connecting block 2 57 An opening and closing plate 2 58 is fixedly connected, and the opening and closing plates 1 56 and 58 are in contact and provided with a sealing gasket, and the seal is tight and good. A synchronous wheel 1 59 is fixedly connected to the output shaft of the servo motor 51, and a synchronous wheel 2 510 is rotatably connected in the attached warehouse 4. The synchronous wheel 2 510 is located directly below the synchronous wheel 1 59. A threaded rod 511 is coaxially fixedly connected to the synchronous wheel 2 510, and a threaded block 512 is threadedly connected to the threaded rod 511. A bracket 513 is fixedly connected to the bottom surface of the threaded block 512, and a slide plate 514 is fixedly connected to the side of the bracket 513 away from the threaded block 512, and a slide rod 515 is slidably connected in the slide plate 514.

[0046] Further, such as Figures 3 to 5 As shown, gear 1 53 is rotationally connected to the attached bin 4, a groove 1 is provided on the side of the attached bin 4 close to gear 1 53, a groove 2 is provided on the side of the attached bin 4 away from gear 1 53, and two racks 1 54 are slidably connected to the groove 1.

[0047] Further, such as Figure 5 As shown, synchronous wheel 1 59 is connected to synchronous wheel 2 510 through synchronous belt transmission, threaded rod 511 is rotationally connected to main bin 1, bracket 513 is in the shape of an I, and both ends of sliding rod 515 are fixedly connected to main bin 1 and auxiliary bin 4 respectively.

[0048] Further, such as Figures 6 to 8 As shown, the cleaning component includes an electric contact rod 61 fixedly connected to the upper surface of the bracket 513, and the electric contact rod 61 is provided with an electric contact. A docking tube 62 is fixedly connected in the attached warehouse 4, and an electrode plate 63 and a photosensitive sensor 64 are provided in the docking tube 62. A cavity plate 65 is fixedly connected in the attached warehouse 4, and at least two cavity plates 65 are provided. A plurality of nozzles are provided on the cavity plate 65, and a sewage outlet 66 is opened on the outer wall of the attached warehouse 4.

[0049] Further, such as Figure 7 and Figure 8 As shown, the electric contact rod 61 is plugged into the docking tube 62, the cavity plate 65 is connected to a hose, and the other end of the hose is connected to a water pump. When the electric contact on the electric contact rod 61 contacts the electrode plate 63, the water pump starts, and the water pump is connected to a water storage barrel. The water pump can extract water from the water storage barrel. The water storage barrel is provided with scale lines. When it is necessary to clean the film hanging device 3, the staff will pour water into the water storage barrel and keep the water level flush with the scale line. The water volume on the scale line is the water volume used when cleaning the film hanging device 3.

[0050] The device can move the film-forming device 3 to the attached bin 4 for cleaning. The detailed steps are as follows:

[0051] Before cleaning the biofilm device 3, the staff fills water into the water storage bucket and makes the water level line flush with the scale line in the water storage bucket;

[0052] When the wastewater treatment is completed in the main bin 1, the surface of the biofilm device 3 will be adsorbed with sediments generated during the wastewater degradation treatment process. At this time, the staff starts the servo motor 51, so that the output shaft of the servo motor 51 rotates forward, driving the connecting shaft 52 to rotate together with the output shaft of the servo motor 51. During the forward rotation of the connecting shaft 52, the gear 1 53 rotates counterclockwise with its own center of circle as the axis, driving the racks 1 54 on the upper and lower sides of the gear 1 53 to move horizontally along the groove 1 opened on the inner wall of the auxiliary bin 4. Specifically, the gear 1 53 rotates, driving the upper rack 1 54, connecting block 1 55 and opening and closing plate 1 56 to move horizontally in a direction away from the gear 1 53, and driving the lower rack 1 54, connecting block 2 57 and opening and closing plate 2 58 to move horizontally in a direction away from the gear 1 53. The opening and closing plates 1 56 and 2 58 gradually move away from each other from a closed state to an open state.

[0053] In the process of the opening and closing plate 1 56 and the opening and closing plate 2 58 gradually changing from the closed state to the open state, the synchronous wheel 1 59 on the output shaft of the servo motor 51 drives the synchronous wheel 2 510 through the synchronous belt, so that the synchronous wheel 2 510 rotates together with the output shaft of the servo motor 51. In the process of the synchronous wheel 2 510 rotating forward, the driving bracket 513 and the slide plate 514 at the bottom of the bracket 513 move horizontally along the slide bar 515 toward the side close to the attached warehouse 4. In the process of the bracket 513 moving horizontally along the slide bar 515 toward the side close to the attached warehouse 4, the electric contact rod 61 on the upper surface of the bracket 513 is gradually inserted into the docking tube 62. When the electric contact on the electric contact rod 61 contacts the electrode plate 63 inside the docking tube 62, When the water pump starts, the pure water in the water storage barrel is pumped to the hose, and then transported to the cavity plate 65 via the hose, so that the high-pressure water flow is sprayed out from the nozzle provided on the cavity plate 65 and sprayed to the film hanging device 3, thereby cleaning the sediment adsorbed on the surface of the film hanging device 3. When the staff observes the high-pressure water flow spraying out from the nozzle provided on the cavity plate 65 through the attached bin 4 made of transparent material, the servo motor 51 is turned off to stop the output shaft of the servo motor 51 from rotating, and further the bracket 513 and the film hanging device 3 in the bracket 513 are stopped between the two cavity plates 65 and are washed by the high-pressure water flow sprayed from the nozzle provided on the cavity plate 65. When the pure water in the water storage barrel is completely pumped out by the water pump, the cleaning of the film hanging device 3 is completed.

[0054] In the above steps, when the film-forming device 3 needs to be cleaned, the servo motor 51 is started, and the output shaft of the servo motor 51 rotates forward, driving the threaded rod 511 to move the film-forming device 3 horizontally to the inside of the auxiliary warehouse 4. Compared with the prior art, the film-forming device 3 is usually cleaned at a fixed period, and when cleaning the film-forming device 3, the entire main warehouse 1 needs to be manually disassembled, and then the film-forming device 3 is cleaned. The present device moves the film-forming device 3 to the inside of the auxiliary warehouse 4 for cleaning by moving the assembly, which reduces the steps of disassembling and reassembling the main warehouse 1, reduces the wear on the parts when disassembling and reassembling the main warehouse 1, and improves the service life of the reactor;

[0055] During the process of cleaning the surface of the film hanging device 3 with the high-pressure water flow sprayed from the nozzle arranged on the cavity plate 65, the generated sewage and impurities flow out from the sewage outlet 66 opened on the outer wall of the attached warehouse 4. In the above steps, by opening the sewage outlet 66 on the outer wall of the attached warehouse 4, compared with the prior art, during the cleaning of the attached warehouse 4, sewage and impurities are generated inside the main warehouse 1. The device can automatically trigger the water pump to supply water to clean the surface of the film hanging device 3, reducing manual intervention, and through the set sewage outlet 66, the sewage and impurities flow out from the sewage outlet 66 of the attached warehouse 4.

[0056] Embodiment 2:

[0057] like Figure 8 As shown, the replacement component includes a fixed block 71 fixedly connected to the attached warehouse 4, and a guide rod 72 and a large compression spring 73 are fixedly connected to the side of the fixed block 71 away from the servo motor 51. Two guide rods 72 are provided, and the large compression spring 73 is located between the guide rods 72. A slider 74 is slidably connected to the guide rod 72, and a long connecting rod 75 is rotatably connected to the bottom surface of the slider 74. Two long connecting rods 75 are provided, and an end of the long connecting rod 75 away from the slider 74 is rotatably connected to an opening and closing door 76. The initial state of the opening and closing door 76 is a mutually contacting closed state. The opening and closing door 76 is made of transparent material. The staff can observe whether the film hanging device 3 is cleaned through the opening and closing door 76 made of transparent material. A limiting plate 77 is fixedly connected to the attached warehouse 4, and the limiting plate 77 is located on the outside of the opening and closing door 76. No less than two limiting plates 77 are provided.

[0058] Further, such as Figure 8 As shown, one end of the guide rod 72 away from the fixed block 71 is fixedly connected with a clamping block, which is used to limit the horizontal movement of the slider 74 to ensure that the slider 74 will not separate from the guide rod 72. The large compression spring 73 is fixedly connected to the side of the slider 74 close to the fixed block 71. The initial state of the large compression spring 73 is a compressed state. The opening and closing door 76 is slidably connected to the groove 2 opened in the inner wall of the attached warehouse 4.

[0059] Further, such as Figures 9 to 13As shown, the replacement assembly also includes a rotating plate 78 rotatably connected to the bracket 513, and the rotating plates 78 are provided with no less than four. The surface of the rotating plate 78 is rotatably connected with a short connecting rod 79, and each rotating plate 78 is provided with two short connecting rods 79 on the surface, and the two short connecting rods 79 are rotatably connected to the slider 2 710 at one end away from the rotating plate 78. The slider 2 710 is slidably connected with a guide rail 711, and the slider 2 710 is fixedly connected with a clamping member 712. The initial state of the clamping member 712 is to clamp the film hanging device 3, which is used to fix the film hanging device 3. The bracket 513 is fixedly connected with a groove plate 713, and the groove plate 711 is fixedly connected with the film hanging device 3. 13 is provided with no less than four, a follower plate 714 is slidably connected in the bracket 513, and no less than four follower plates 714 are provided. A small compression spring 715 is fixedly connected between the follower plate 714 and the bracket 513, and the initial state of the small compression spring 715 is a compressed state. A rack 2 716 is fixedly connected to the side wall of the follower plate 714, and a gear 2 717 is meshedly connected to the side of the rack 2 716 away from the follower plate 714. A synchronous wheel 3 718 is fixedly connected to the gear 2 717. A synchronous wheel 4 719 with the same number as the rotating plate 78 is rotatably connected in the bracket 513, and the synchronous wheel 4 719 is coaxially fixedly connected to the rotating plate 78.

[0060] Further, such as Fig. 9 and Fig.12 As shown, both ends of the guide rail 711 are fixedly connected to the bracket 513 , the clamping member 712 is located outside the film hanging device 3 , and the groove plate 713 is snap-fitted with the film hanging device 3 .

[0061] Further, such as Figure 5 and Fig.10 As shown, the follower plate 714 and the limit plate 77 are located on the same horizontal line. When the follower plate 714 contacts and moves with the limit plate 77, since the limit plate 77 is fixed, the limit plate 77 will squeeze the follower plate 714 to move, and the gear 2 717 is rotationally connected to the bracket 513, and the gear 2 717 is connected to the synchronous wheel 4 719 through a synchronous belt transmission.

[0062] The device can be used to replace the film-forming device 3, and the detailed steps are as follows:

[0063] When the staff observes through the transparent opening and closing door 76 that the film hanging device 3 cannot be cleaned and needs to be replaced with a new film hanging device 3, the staff starts the servo motor 51 again to make the output shaft of the servo motor 51 rotate forward. Referring to the first embodiment, as the output shaft of the servo motor 51 rotates forward, the threaded rod 511 is driven to rotate forward, so that the bracket 513 and the film hanging device 3 move horizontally from the position between the two cavity plates 65 to the direction close to the side of the slider 74. In the process of the bracket 513 moving horizontally to the direction close to the side of the slider 74, the threaded block 512 contacts the slider 74 and pushes the slider 74, so that the slider 74 moves horizontally along the large compression spring 73 to the direction close to the fixed block 71, and compresses the large compression spring 73, and the long connecting rod 75 at the bottom of the slider 74 rotates and pushes the two opening and closing doors 76 to move horizontally along the groove 2 opened in the inner cavity wall of the attached warehouse 4 toward the direction away from the fixed block 71, so that the two opening and closing doors 76 gradually change from a contact closed state to an open state.

[0064] As the bracket 513 pushes the slider 1 74 to continue to move horizontally in the direction close to the fixed block 71, the follower plate 714 in the bracket 513 will contact the limit plate 77, and the limit plate 77 remains stationary, which will push the follower plate 714 to move horizontally in the direction close to the small compression spring 715. In the process of the follower plate 714 moving horizontally in the direction close to the small compression spring 715, the small compression spring 715 is further compressed, and the rack 2 716 on the outside of the follower plate 714 meshes with the gear 2 717 to rotate, also The rotating plate 78 will be synchronously driven to rotate around the synchronous wheel 4 719 as the axis, so that the short connecting rod 79 pushes the slider 2 710 and moves horizontally along the guide rail 711 in the direction away from the rotating plate 78. In this process, the clamping piece 712 on the outside of the film hanging device 3 moves horizontally in the direction away from the film hanging device 3, so that the clamping piece 712 gradually loosens the film hanging device 3 until the electric contact rod 61 moves horizontally along the inside of the docking tube 62 and moves to the position where the photosensor 64 is located. At this time, the light emitted by the photosensor 64 is blocked. The output shaft of the servo motor 51 stops rotating. At this time, the opening and closing door 76 is in a fully open state. The clamping piece 712 is completely disengaged from the film hanging device 3. The staff can pull out the film hanging device 3 that needs to be replaced along the groove plate 713, push the new film hanging device 3 along the groove plate 713, and push the film hanging device 3 in until it can no longer be pushed. Then, the staff stops pushing, starts the servo motor 51, and reverses the output shaft of the servo motor 51. The above steps are repeated in reverse. The bracket 513 moves horizontally from the auxiliary warehouse 4 back to the main warehouse 1, and the opening and closing door 76 becomes closed. The follower plate 7 14 disengages from the limit plate 77 and returns to the initial position. During this process, the small compression spring 715 rebounds to the initial length, the gear 2 717 reverses, driving the rotating plate 78 to reverse, so that the clamping member 712 clamps and fixes the new film hanging device 3. As the output shaft of the servo motor 51 continues to reverse, the opening and closing plate 1 56 and the opening and closing plate 2 58 contact and are in a closed state. When the bracket 513 moves back to the initial position, the staff turns off the servo motor 51, so that the bracket 513 and the film hanging device 3 stay inside the main warehouse 1, which is convenient for the next batch of wastewater treatment;

[0065] In the above steps, compared with the prior art, it is necessary to disassemble the nut to complete the replacement of the film hanging device 3. The replacement component in the present device can be moved by the clamping member 712 to complete the replacement of the old and new film hanging devices 3 more conveniently and quickly, avoiding the complicated disassembly and assembly process when replacing the film hanging device 3.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double oxygen layer biofilm reactor for wastewater treatment, comprising a main compartment (1), wherein the interior of the main compartment (1) is connected to an oxygen supply pipe (2), wherein two oxygen supply pipes (2) are provided, wherein a biofilm device (3) is provided inside the oxygen supply pipe (2), wherein at least two biofilm devices (3) are provided, and an auxiliary compartment (4) is fixedly connected to the outer side of the main compartment (1), wherein: The auxiliary warehouse (4) is in the shape of an "I" character. A first opening is provided on a side of the auxiliary warehouse (4) close to the main warehouse (1), and a second opening is provided on a side of the auxiliary warehouse (4) away from the main warehouse (1). A moving component and a replacement component are provided inside the oxygen supply pipe (2) and the auxiliary warehouse (4), and a cleaning component is provided inside the auxiliary warehouse (4); The moving assembly comprises a servo motor (51) fixedly connected to the attached warehouse (4), the servo motor (51) being embedded in the attached warehouse (4), the output shaft of the servo motor (51) being fixedly connected to a connecting shaft (52), the end of the connecting shaft (52) away from the servo motor (51) being fixedly connected to a gear (53), the outer side of the gear (53) being meshingly connected to a rack (54), two racks (54) being arranged on the outer side of the gear (53) in an upper and lower manner, the rack (54) located at the upper part being fixedly connected to a connecting block (55), the outer wall of the connecting block (55) being fixedly connected to an opening and closing plate (56) via a connecting plate, and the rack (54) located at the lower part being fixedly connected to a connecting block The second connecting block (57) is fixedly connected to an opening and closing plate (58) on its bottom surface, a sealing gasket is provided between the opening and closing plate (56) and the opening and closing plate (58), a synchronous wheel (59) is fixedly connected to the output shaft of the servo motor (51), a synchronous wheel (510) is rotatably connected in the attached warehouse (4), a threaded rod (511) is fixedly connected to the synchronous wheel (510), a threaded block (512) is threadedly connected to the threaded rod (511), a bracket (513) is fixedly connected to the bottom surface of the threaded block (512), a slide plate (514) is fixedly connected to the side of the bracket (513) away from the threaded block (512), and a slide rod (515) is slidably connected in the slide plate (514).

2. A double oxygen layer biofilm reactor for wastewater treatment according to claim 1, characterized in that: The gear one (53) is rotationally connected to the attached bin (4); a groove one is provided on a side of the attached bin (4) close to the gear one (53); a groove two is provided on a side of the attached bin (4) away from the gear one (53); and the two racks one (54) are slidably connected to the groove one.

3. A double oxygen layer biofilm reactor for wastewater treatment according to claim 1, characterized in that: The synchronous wheel 1 (59) is connected to the synchronous wheel 2 (510) through a synchronous belt transmission, the threaded rod (511) is rotationally connected to the main warehouse (1), the bracket (513) is in the shape of an "I" character, and the two ends of the sliding rod (515) are respectively fixedly connected to the main warehouse (1) and the auxiliary warehouse (4).

4. A double oxygen layer biofilm reactor for wastewater treatment according to claim 1, characterized in that: The cleaning assembly comprises an electric contact rod (61) fixedly connected to the upper surface of the bracket (513), the electric contact rod (61) being provided with an electric contact point, a docking sleeve (62) fixedly connected in the attached bin (4), an electrode plate (63) and a photosensitive sensor (64) being provided in the docking sleeve (62), a cavity plate (65) fixedly connected in the attached bin (4), at least two cavity plates (65) being provided, a plurality of nozzles being provided on the cavity plate (65), and a sewage outlet (66) being provided on the outer wall of the attached bin (4).

5. A double oxygen layer biofilm reactor for wastewater treatment according to claim 4, characterized in that: The electric contact rod (61) is plugged into the docking sleeve (62), the cavity plate (65) is externally connected to a hose, the other end of the hose is externally connected to a water pump, and the water pump is connected to a water storage tank.

6. A double oxygen layer biofilm reactor for wastewater treatment according to claim 1, characterized in that: The replacement assembly comprises a fixed block (71) fixedly connected to the attached warehouse (4); a guide rod (72) and a large compression spring (73) are fixedly connected to the side of the fixed block (71) away from the servo motor (51); two guide rods (72) are provided; a slider (74) is slidably connected to the guide rod (72); a long connecting rod (75) is rotatably connected to the bottom surface of the slider (74); two long connecting rods (75) are provided; an end of the long connecting rod (75) away from the slider (74) is rotatably connected to an opening and closing door (76); the opening and closing door (76) is made of a transparent material; a limiting plate (77) is fixedly connected to the attached warehouse (4); and no less than two limiting plates (77) are provided.

7. A double oxygen layer biofilm reactor for wastewater treatment according to claim 6, characterized in that: One end of the guide rod (72) away from the fixed block (71) is fixedly connected to a clamping block, the large compression spring (73) is fixedly connected to a sliding block (74), and the opening and closing door (76) is slidably connected to a groove (2) provided in the attached bin (4).

8. A double oxygen layer biofilm reactor for wastewater treatment according to claim 1, characterized in that: The replacement assembly also includes a rotating plate (78) rotatably connected to the bracket (513), wherein at least four rotating plates (78) are provided, and a short connecting rod (79) is rotatably connected to the surface of the rotating plate (78), and two short connecting rods (79) are provided on the surface of each rotating plate (78), and one end of the two short connecting rods (79) away from the rotating plate (78) is rotatably connected to a slider 2 (710), and the slider 2 (710) is slidably connected to a guide rail (711), and a clamping member (712) is fixedly connected to the slider 2 (710), and a groove plate (713) is fixedly connected to the bracket (513), and at least four groove plates (713) are provided. A follower plate (714) is slidably connected in the bracket (513), and no less than four follower plates (714) are provided. A small compression spring (715) is fixedly connected between the follower plate (714) and the bracket (513). A rack 2 (716) is fixedly connected to the side wall of the follower plate (714). A gear 2 (717) is meshingly connected to the side of the rack 2 (716) away from the follower plate (714). A synchronous wheel 3 (718) is fixedly connected to the gear 2 (717). A synchronous wheel 4 (719) having the same number as the rotating plate (78) is rotatably connected in the bracket (513), and the synchronous wheel 4 (719) is coaxially fixedly connected to the rotating plate (78).

9. A double oxygen layer biofilm reactor for wastewater treatment according to claim 8, characterized in that: Both ends of the guide rail (711) are fixedly connected to the bracket (513), the clamping member (712) is located outside the film hanging device (3), and the groove plate (713) is snap-fitted with the film hanging device (3).

10. A double oxygen layer biofilm reactor for wastewater treatment according to claim 8, characterized in that: The follower plate (714) and the limit plate (77) are located on the same horizontal line, the gear 2 (717) is rotationally connected to the bracket (513), and the gear 2 (717) is connected to the synchronous wheel 4 (719) through a synchronous belt transmission.

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