A device and process for preventing built-in MBR membrane from clogging

Abstract

The present invention discloses a device for preventing built-in MBR membrane from being blocked and a process thereof, and relates to the technical field of MBR membrane components. The technical scheme mainly comprises an MBR membrane group bracket, a combined sleeve bracket, an aeration branch pipe, and a purified water outlet pipe. A multi-axis track bracket arranged on the upper surface of the MBR membrane group bracket can be used to control a cleaning mechanism at its output end to move along the surface of a panel with a leak. The cleaning mechanism can be placed above the built-in MBR membrane tube, and a second electric telescopic rod of the extraction and washing mechanism can be used to extend an electromagnetic block downward to adsorb and adhere to the magnetic suction sleeve of the built-in MBR membrane tube, and the built-in MBR membrane tube can be pulled into the cleaning mechanism for separate cleaning. Different from traditional cleaning, the device can not only process the built-in MBR membrane tube at a position that is difficult to clean inside the MBR membrane group bracket, but also can clean the built-in MBR membrane tube without affecting the normal operation of other built-in MBR membrane tubes.

Description

Technical Field

[0001] The invention relates to the technical field of MBR membrane components, and more specifically, to a device for preventing built-in MBR membrane from being blocked and a process thereof. Background Art

[0002] Traditional wastewater treatment usually uses sedimentation tanks to separate solids and liquids to remove suspended matter and microorganisms in the water. However, when dealing with the increasing amount of landfill leachate wastewater in cities, traditional processes are difficult to effectively remove fine particles in the wastewater. Therefore, more and more sewage treatment centers choose to use MBR (membrane bioreactor) technology for wastewater treatment. MBR technology can directly filter suspended matter and microorganisms in the water through the use of membrane components, which not only makes the effluent clearer, but also significantly improves the effect of biochemical treatment.

[0003] Existing MBR technology mainly includes bioreactors and membrane components inside them, among which membrane components can be selected in different types and sizes according to needs. Taking the built-in MBR membrane as an example, the widely used membrane component inside it is a tubular membrane component. The tubular membrane component is composed of a single membrane tube with a larger diameter. Compared with hollow fiber membrane filaments, the size of a single membrane tube is larger. Due to the accumulation of suspended matter, colloids, microorganisms and other particulates in sewage, the membrane pores are easily blocked, thereby reducing the membrane flux. In order to prevent the outer wall of the built-in MBR membrane tube from being blocked, maintain the filtration performance of the membrane and extend its service life, the outer surface of the membrane tube needs to be cleaned regularly.

[0004] However, it is difficult to effectively remove the stubborn stains on the outside of the MBR membrane by conventional methods alone. Usually, an immersion cleaning method is required to allow the chemical agent enough time to react with the stains. However, in actual operation, the MBR membrane group needs to be soaked in the chemical cleaning solution for several hours or even a day and night, which makes the entire maintenance process time-consuming. In particular, for MBR membranes that cannot achieve the desired effect by in-situ immersion, the membrane components need to be disassembled one by one and placed in a cleaning tank for cleaning, which makes the entire membrane group at this station temporarily unable to filter, which affects the overall filtration and purification efficiency and further increases the complexity and tediousness of the cleaning process. Therefore, it is necessary to provide a device and a process for preventing built-in MBR membranes from being blocked. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a device and process for preventing built-in MBR membrane clogging, aiming to solve the above technical problems.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A device for preventing built-in MBR membrane from clogging and a process thereof, comprising an MBR membrane group support, a combined sleeve support, an aeration branch pipe, and a clean water outlet pipe, wherein the MBR membrane group support and the combined sleeve support are an integrated structure, the combined sleeve support is fixedly connected to the bottom of the MBR membrane group support to be assembled inside the bioreactor of the filtration tank, the clean water outlet pipe is fixedly installed on the long sides on both sides of the bottom of the MBR membrane group support; and a plurality of MBR membrane tube modules are arranged along the clean water outlet pipe on each long side, and the aeration branch pipe is fixedly installed at the middle position of the bottom of the MBR membrane group support to align with the MBR membrane tube modules on both sides for aeration;

[0008] A panel with a leak is fixedly installed on the upper surface of the MBR membrane group support; and the leaks are one-to-one corresponding to each MBR membrane tube module at the bottom, a multi-axis rail support is fixedly installed on the outer side of the panel with a leak, a cleaning mechanism is fixedly installed on the output end of the multi-axis rail support, and a pumping mechanism is configured on the upper side of the cleaning mechanism;

[0009] Among them, the extraction and washing mechanism includes a second electric telescopic rod and an electromagnetic block fixedly installed on the output end of the second electric telescopic rod, the MBR membrane tube module includes a first lifting bracket and an outer filter cover fixedly installed on the upper surface of the first lifting bracket, the interior of the outer filter cover is slidably configured with built-in MBR membrane tubes, and the upper surface of the built-in MBR membrane tube is fitted with a magnetic suction sleeve corresponding to the electromagnetic block, so as to cooperate with the second electric telescopic rod to pull the selected built-in MBR membrane tube into the cleaning mechanism for separate cleaning without interfering with the continued filtration of other MBR membrane tube modules.

[0010] As a further solution of the present invention: the cleaning mechanism includes a cleaning cavity box, a sealing door is movably installed at the bottom of the cleaning cavity box, and first electric telescopic rods connected to the two sides of the sealing door are movably hinged at positions on both sides of the sealing door outside the cleaning cavity box, slide rails are fixedly installed on both sides of the inner part of the outer filter cover, and limiting slide bars slidingly sleeved in the slide rails are fixedly connected on both sides of the outer surface of the built-in MBR membrane tube, a first inner magnetic ring is fixedly installed on the inner bottom of the outer filter cover, and a second inner magnetic ring corresponding to the adsorption of the first inner magnetic ring is fixedly installed on the bottom of the built-in MBR membrane tube; and an extension hose connected to the side clean water outlet pipe is fixedly connected to the bottom of each built-in MBR membrane tube.

[0011] As a further solution of the present invention: the interior of the cleaning cavity box also includes a first cleaning cylinder module and a second cleaning cylinder module, the first cleaning cylinder module includes a first ring frame fixedly connected to the upper side of the interior of the cleaning cavity box, the bottom of the first ring frame is movably covered with a first sleeve, the second cleaning cylinder module includes a second ring frame fixedly connected to the lower side of the interior of the cleaning cavity box, the upper side of the second ring frame is movably covered with a second sleeve; and the first sleeve is movably covered in the second sleeve as a whole.

[0012] As a further solution of the present invention: the bottom of the first sleeve is circularly fixed with four expansion arc plates in sequence; and an airbag scraping arc sleeve is fixedly installed on the inner side of each expansion arc plate; and the upper side of each airbag scraping arc sleeve is connected in series through an air pipe, and a first gear ring is fixedly installed at the upper outer edge of the first sleeve.

[0013] As a further solution of the present invention: the inner wall of the second sleeve is fixedly installed with four airbag covers in a circular pattern; and a friction plate is fixedly installed on the outer surface of each airbag cover, and a spray plate is fixedly installed between the two airbag covers, and connecting pipe heads are fixedly installed at positions on both sides of the outer surface of the second sleeve; and the connecting pipe heads on each side are connected and correspond to the adjacent two side spray plates, and a second gear ring is fixedly installed on the bottom outer edge of the second sleeve.

[0014] As a further solution of the present invention: the upper surface of the cleaning cavity box is also configured with a linkage disc mechanism, and the linkage disc mechanism includes a cavity disc, and a first gear support rod and a second gear support rod are movably installed at two side positions 180 degrees apart inside the cavity disc, and the first gear support rod and the second gear support rod both extend into the interior of the cleaning cavity box; and a gear meshing with the first gear ring is configured at the upper side position of the first gear support rod extending into the interior of the cleaning cavity box; and a gear meshing with the second gear ring is configured at the lower side position of the second gear support rod extending into the interior of the cleaning cavity box.

[0015] As a further solution of the present invention: the first gear head is fixedly installed at the position above the first gear support rod and the second gear support rod inside the cavity disc, and a special-shaped gear ring is movably installed at the outer position of the two first gear heads inside the cavity disc, and the inner annular surface of the special-shaped gear ring is provided with a tooth opening with a length of 180 degrees; and it is meshing with the two first gear heads.

[0016] As a further solution of the present invention: a side bin cavity is fixedly installed on the side of the cavity disk, a second gear head is movably installed inside the side bin cavity, the outer edge surface of the special-shaped gear ring is provided with tooth openings corresponding to the meshing of the second gear head, a servo motor is fixedly installed on the upper side of the side bin cavity, and the output end of the servo motor passes through the inside of the side bin cavity and is fixedly connected to the axis of the second gear head.

[0017] As a further solution of the present invention: the first storage box and the second storage box are fixedly installed on the outer surface of the cleaning cavity box at the position corresponding to the internal connecting pipe head; and the bottom of the first storage box and the second storage box are both provided with extraction pumps connected to the connecting pipe heads on the corresponding internal sides, and a reserved pulling-out opening for the second electric telescopic rod to be inserted is opened at the axial position of the cavity disc; and a sealing sleeve is fixedly installed on the inner wall of the reserved pulling-out opening, and a pump is fixedly installed at the bottom side position of the cleaning cavity box, and the extraction end of the pump extends to the inner bottom of the cleaning cavity box, and a second lifting bracket is fixedly installed on the side edge of the upper surface of the cavity disc, and the second electric telescopic rod is fixedly installed at the bottom of the second lifting bracket.

[0018] An anti-clogging process for preventing a built-in MBR membrane from clogging comprises the following steps:

[0019] S1: First, the cleaning mechanism is controlled by the multi-axis track bracket to move to the top of the MBR membrane tube module with cleaning;

[0020] S2: Then, the second electric telescopic rod controls the electromagnetic block at its output end to suck the corresponding built-in MBR membrane tube into the interior of the cleaning cavity box;

[0021] S3: Then, the first cleaning cylinder module and the second cleaning cylinder module are driven by the linkage disc mechanism to perform rotary immersion cleaning;

[0022] S4: Finally, the outward-turning sealing door is reopened by the first electric telescopic rod, and the cleaned built-in MBR membrane tube is reinserted into the MBR membrane group support in cooperation with the second electric telescopic rod.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the multi-axis track bracket configured on the upper surface of the MBR membrane group bracket, the cleaning mechanism at its output end is controlled to move along the surface of the panel with the leak. When the outer surface of any built-in MBR membrane tube in the membrane group is blocked, the cleaning mechanism can be placed above the built-in MBR membrane tube in real time, and the electromagnetic block is extended downward in cooperation with the second electric telescopic rod of the extraction and cleaning mechanism to adsorb and fit on the magnetic suction sleeve of the built-in MBR membrane tube, and the built-in MBR membrane tube is further pulled into the cleaning mechanism for separate cleaning. Different from the traditional high-pressure water gun cleaning, it can not only handle the built-in MBR membrane tube in the difficult-to-clean position inside the MBR membrane group bracket, but also can clean the built-in MBR membrane tube without affecting the normal operation of other built-in MBR membrane tubes.

[0025] 2. Through each relatively slidable outer filter cover and built-in MBR membrane tube assembly of the MBR membrane tube module, its extension hose can follow in when it is pulled into the cleaning cavity box for cleaning, so as to ensure that it can be directly inserted into the MBR membrane group bracket for use after cleaning is completed, without manual reassembly, thereby increasing the degree of adaptation between the MBR membrane anti-blocking end and the MBR membrane group bracket after cleaning the blockage, further reducing the workload of maintenance and cleaning work, and cooperating with the outward-turning sealing door controlled by the first electric telescopic rod at the bottom of the cleaning cavity box, which can clamp the extension hose and prevent it from transporting water outward, thereby effectively preventing the wastewater generated during the cleaning process from being pumped away by the clean water outlet pipe.

[0026] 3. The cleaning cavity box is closed by controlling the outward-turning sealing door through the first electric telescopic rod, which can temporarily form a cavity that can be cleaned and soaked inside the cleaning cavity box. Different cleaning reagents can be stored in the first and second storage boxes on the outside, respectively, to complete multi-stage cleaning work, further improve the cleaning effect of the anti-clogging end, significantly improve the cleaning effect of the anti-clogging end, ensure the efficient operation of the membrane assembly, extend the service life of the membrane assembly, and reduce maintenance costs.

[0027] 4. Through the first cleaning cylinder module and the second cleaning cylinder module configured in the cleaning cavity box, during the cleaning process, the spray plates and airbag scraping arc sleeves at the inner and outer ends can be controlled to spray, scrape and soak the extended and inserted built-in MBR membrane tubes under the action of the 360-degree reciprocating rotation of the special-shaped gear ring of the linkage disc mechanism, thereby further improving the cleaning effect of the anti-clogging end. In addition, during the reciprocating rotation of the first cleaning cylinder module and the second cleaning cylinder module, the friction plates fitted thereto will also generate heat due to friction, so that the cleaning liquid in the cavity has a certain temperature to better cooperate with the cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of the overall state of a device for preventing built-in MBR membrane clogging;

[0030] Figure 2 It is a structural schematic diagram of the MBR membrane group support;

[0031] Figure 3 It is a structural schematic diagram of the cleaning mechanism;

[0032] Figure 4 This is a schematic diagram of the structure of the MBR membrane tube module in a split state;

[0033] Figure 5 It is a schematic diagram of the structure of the bottom of the outer filter cover;

[0034] Figure 6 It is a schematic diagram of the structure of the cleaning cavity box;

[0035] Figure 7 It is a schematic diagram of the split structure of the first cleaning cylinder module and the second cleaning cylinder module;

[0036] Figure 8 It is a structural schematic diagram of the first cleaning cylinder module and the second cleaning cylinder module in a combined state;

[0037] Fig. 9 It is a schematic diagram of the structure of the linkage disc mechanism in a split state;

[0038] Fig.10 It is a structural diagram of the extraction and washing mechanism.

[0039] Reference numerals:

[0040] 1. MBR membrane group bracket; 2. Combined sleeve frame; 3. Aeration branch pipe; 4. Clean water outlet pipe;

[0041] 5. MBR membrane tube module; 51. first lifting bracket; 52. outer filter cover; 53. first inner magnetic ring; 54. slide rail; 55. built-in MBR membrane tube; 56. limit slide bar; 57. second inner magnetic ring; 58. magnetic sleeve; 59. extension hose;

[0042] 6. Panel with leakage; 7. Multi-axis track bracket;

[0043] 8. Cleaning mechanism; 81. Cleaning cavity box; 82. Outward-turning sealing door; 83. First electric telescopic rod; 84. First storage box; 85. Second storage box;

[0044] 86. Linkage disc mechanism; 861. First gear support rod; 862. Second gear support rod; 863. Cavity disc; 864. Special-shaped gear ring; 865. First gear head; 866. Side compartment cavity; 867. Servo motor; 868. Second gear head; 869. Reserved draw-out opening;

[0045] 87. Pump;

[0046] 88, first cleaning cylinder module; 881, first ring frame; 882, first sleeve; 883, first gear ring; 884, expansion arc plate; 885, airbag scraping arc sleeve;

[0047] 89, second cleaning cylinder module; 891, second sleeve ring frame; 892, second sleeve; 893, second gear ring; 894, pipe joint; 895, airbag cover; 896, friction plate; 897, spray plate;

[0048] 9. Extraction and washing mechanism; 91. Second lifting bracket; 92. Second electric telescopic rod; 93. Electromagnetic block. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of 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.

[0050] Reference Figures 1 to 10 A device for preventing built-in MBR membrane from clogging and a process embodiment thereof are further described in the present invention.

[0051] A device for preventing built-in MBR membrane from clogging and a process thereof, comprising an MBR membrane group support 1, a combined sleeve frame 2, an aeration branch pipe 3, and a clean water outlet pipe 4, wherein the MBR membrane group support 1 and the combined sleeve frame 2 are an integral structure, the combined sleeve frame 2 is fixedly connected to the bottom of the MBR membrane group support 1 to be assembled inside the bioreactor of the filtration tank, the clean water outlet pipe 4 is fixedly installed on the long sides on both sides of the bottom of the MBR membrane group support 1; and a plurality of MBR membrane tube modules 5 are arranged along the clean water outlet pipe 4 on each long side, and the aeration branch pipe 3 is fixedly installed at the middle position of the bottom of the MBR membrane group support 1 to align with the MBR membrane tube modules 5 on both sides for aeration;

[0052] A panel with a leak is fixedly mounted on the upper surface of the MBR membrane group support 1; and the leaks are one-to-one corresponding to each MBR membrane tube module 5 at the bottom, a multi-axis rail support 7 is fixedly mounted on the outer side of the panel with a leak 6, a cleaning mechanism 8 is fixedly mounted on the output end of the multi-axis rail support 7, and a pumping mechanism 9 is arranged on the upper side of the cleaning mechanism 8;

[0053] Among them, the extraction and washing mechanism 9 includes a second electric telescopic rod 92 and an electromagnetic block 93 fixedly installed on the output end of the second electric telescopic rod 92, and the MBR membrane tube module 5 includes a first lifting bracket 51 and an outer filter cover 52 fixedly installed on the upper surface of the first lifting bracket 51. The interior of the outer filter cover 52 is slidably configured with a built-in MBR membrane tube 55, and the upper surface of the built-in MBR membrane tube 55 is fitted with a magnetic suction sleeve 58 corresponding to the electromagnetic block 93, so as to cooperate with the second electric telescopic rod 92 to pull the selected built-in MBR membrane tube 55 into the cleaning mechanism 8 for separate cleaning without interfering with other MBR membrane tube modules 5 to continue filtering.

[0054] In view of the problem that the removal of stubborn stains on the outside of the MBR membrane in the prior art requires disassembly and cleaning to affect the work of the entire membrane group, the above-mentioned technical solution is now adopted to solve the problem. The above-mentioned technical solution is mainly composed of an MBR membrane group bracket 1, a combined sleeve bracket 2, an aeration branch pipe 3, a clean water outlet pipe 4, an MBR membrane tube module 5, a multi-axis track bracket 7, a cleaning mechanism 8 and a pumping and washing mechanism 9. The MBR membrane group bracket 1 and the combined sleeve bracket 2 are an integrated structure, which plays a supporting and installing role and is used to fix multiple groups of MBR membrane tube modules 5 for membrane filtration. The configured multi-axis track bracket 7 is also a device in the prior art for controlling the output end to move in the X-axis and Y-axis to align the panel 6 with a leak. The leakage on the surface, and the configured aeration branch pipe 3 and clean water outlet pipe 4 are conventional configurations in the prior art, which are used to provide an aeration end and to extract clean water in real time, and the MBR membrane tube module 5 is composed of a relatively slidable outer filter cover 52 and a built-in MBR membrane tube 55. After the multi-axis track bracket 7 controls the extraction and washing mechanism 9 to select the corresponding built-in MBR membrane tube 55, the selected built-in MBR membrane tube 55 can be pulled into the cleaning mechanism 8 by the second electric telescopic rod 92 for separate cleaning without interfering with the continued filtration of other MBR membrane tube modules 5, so as to solve the problem in the prior art that the removal of stubborn stains on the outside of the MBR membrane requires disassembly and cleaning to affect the work of the entire membrane group.

[0055] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the cleaning mechanism 8 includes a cleaning cavity box 81, and an outward-turning sealing door 82 is movably installed at the bottom of the cleaning cavity box 81. The cleaning cavity box 81 is located at both sides of the outward-turning sealing door 82 and is movably hinged with a first electric telescopic rod 83 connected to the two sides of the outward-turning sealing door 82. The inner sides of the outer filter cover 52 are fixedly installed with slide rails 54, and the outer surfaces of the built-in MBR membrane tubes 55 are fixedly connected with limiting slide bars 56 that slide in the slide rails 54 on both sides. The inner bottom of the outer filter cover 52 is fixedly installed with a first inner magnetic suction ring 53, and the bottom of the built-in MBR membrane tubes 55 is fixedly installed with a second inner magnetic suction ring 57 corresponding to the adsorption of the first inner magnetic suction ring 53; and the bottom of each built-in MBR membrane tube 55 is fixedly connected with an extension hose 59 that communicates with the side water purification outlet pipe 4.

[0056] Among them, the configured built-in MBR membrane tube 55 is a conventional MBR membrane tube in the prior art, and the configured quantity can be adjusted according to demand. If the filtration pressure is large, the number of built-in MBR membrane tubes 55 can be increased, and the number of its cleaning ends can be adjusted accordingly. The electromagnetic block 93 configured on the output end of the second electric telescopic rod 92 is a conventional device in the prior art that can change its magnetic state to control the magnetic state of the electromagnetic block 93. The corresponding extension hose 59 is a threaded extensible hose with high strength and toughness in the prior art to cooperate with pulling up and down.

[0057] like Figure 3 , Figure 7 , Figure 8 As shown, the interior of the cleaning cavity box 81 also includes a first cleaning cylinder module 88 and a second cleaning cylinder module 89. The first cleaning cylinder module 88 includes a first ring frame 881 fixedly connected to the upper side of the interior of the cleaning cavity box 81, and the bottom of the first ring frame 881 is movably covered with a first sleeve 882. The second cleaning cylinder module 89 includes a second ring frame 891 fixedly connected to the lower side of the interior of the cleaning cavity box 81, and the upper side of the second ring frame 891 is movably covered with a second sleeve 892; and the first sleeve 882 is movably covered in the second sleeve 892 as a whole.

[0058] like Figure 3 , Figure 7 , Figure 8 As shown, four expansion arc plates 884 are fixedly installed in a circle on the bottom of the first sleeve 882; and an airbag scraping arc sleeve 885 is fixedly installed on the inner side surface of each expansion arc plate 884; and the upper side of each airbag scraping arc sleeve 885 is connected in series through an air pipe, and a first gear ring 883 is fixedly installed at the upper outer edge of the first sleeve 882.

[0059] like Figure 3 , Figure 7 , Figure 8 As shown, the inner wall of the second sleeve 892 is circularly fixedly installed with four airbag covers 895 in sequence; and the outer surface of each airbag cover 895 is fixedly installed with a friction plate 896, and a spray plate 897 is fixedly installed between the two airbag covers 895, and connecting pipe heads 894 are fixedly installed at both sides of the outer surface of the second sleeve 892; and the connecting pipe heads 894 on each side are connected and correspond to the adjacent two side spray plates 897, and a second gear ring 893 is fixedly installed on the bottom outer edge of the second sleeve 892.

[0060] The first sleeve 882 and the second sleeve 892 are configured to fit inside and outside, and are driven to rotate by the meshing of the first gear ring 883 and the second gear ring 893, respectively. The airbag scraping arc sleeve 885 and the airbag sleeve 895 are both airbag structures that can be inflated by inflation in the prior art. The outer sides of the airbags are configured with corresponding inflation hoses, which are passed through to the outside to connect with the corresponding servo inflation equipment to control the inflation state. The surface of the spray plate 897 is provided with a plurality of spray ports in sequence from top to bottom.

[0061] The cleaning steps of the cleaning mechanism 8 are specifically as follows:

[0062] First, when a MBR membrane tube module 5 in one of the MBR membrane group brackets 1 is blocked, or needs to be cleaned, the cleaning mechanism 8 can be driven to move to the top of the MBR membrane tube module 5 through the multi-axis driving action of the multi-axis guide rail bracket 7, so that the axis of the cleaning cavity box 81 is aligned with the leakage of the panel 6 with leakage at that position;

[0063] Then, the electromagnetic block 93 at its output end is controlled to extend downward by the second electric telescopic rod 92, and the first electric telescopic rods 83 on both sides of the cleaning cavity box 81 are extended synchronously, so that the movable hinged outward-turning sealing door 82 is unfolded, and the further extended electromagnetic block 93 is extended downward, and passes through the leak to fit the magnetic suction sleeve 58 on the top of the built-in MBR membrane tube 55 on the corresponding side, and then the electromagnetic block 93 is opened to generate adsorption force to adsorb the magnetic suction sleeve 58, and then the electromagnetic block 93 is retracted by the second electric telescopic rod 92 to pull the adsorbed built-in MBR membrane tube 55 into the interior of the cleaning cavity box 81. After it has completed entering the interior of the cleaning cavity box 81, the upper outward-turning sealing door 82 is closed by the first electric telescopic rod 83 to form a cleaning cavity and press the extension hose 59 to temporarily close it;

[0064] Finally, the airbag scraping arc sleeve 885 on the first ring frame 881 is inflated so that the scraping end of its inner wall fits against the outer surface of the pulled-in built-in MBR membrane tube 55, and the spray plate 897 on the second sleeve 892 is aimed at the outer surface of the built-in MBR membrane tube 55 for spraying and cleaning.

[0065] like Figure 3 , Figure 7 , Figure 8 , Fig. 9 As shown, the upper surface of the cleaning cavity box 81 is also configured with a linkage disk mechanism 86, and the linkage disk mechanism 86 includes a cavity disk 863, and the first gear support rod 861 and the second gear support rod 862 are movably installed at the two sides of the cavity disk 863 at a distance of 180 degrees, respectively, and the first gear support rod 861 and the second gear support rod 862 both extend into the cleaning cavity box 81; and the upper side position of the first gear support rod 861 extending into the cleaning cavity box 81 is configured with a gear meshing with the first gear ring 883; and the lower side position of the second gear support rod 862 extending into the cleaning cavity box 81 is configured with a gear meshing with the second gear ring 893.

[0066] like Figure 3 , Figure 7 , Figure 8 , Fig. 9 As shown, the first gear head 865 is fixedly installed inside the cavity disk 863 at a position on the upper side of the first gear support rod 861 and the second gear support rod 862, and a special-shaped gear ring 864 is movably installed inside the cavity disk 863 at a position on the outer side of the two first gear heads 865, and the inner annular surface of the special-shaped gear ring 864 is provided with a tooth opening with a length of 180 degrees, and it is meshed with the two first gear heads 865.

[0067] like Figure 3 , Figure 7 , Figure 8 , Fig. 9 As shown, a side bin cavity 866 is fixedly installed on the side of the cavity disk 863, and a second gear head 868 is movably installed inside the side bin cavity 866. The outer edge surface of the special-shaped gear ring 864 is provided with a tooth opening corresponding to the meshing of the second gear head 868. A servo motor 867 is fixedly installed on the upper side of the side bin cavity 866, and the output end of the servo motor 867 passes through the inside of the side bin cavity 866 and is fixedly connected to the axis of the second gear head 868.

[0068] The configured special-shaped gear ring 864 as a whole has an inner ring with 180 degrees, that is, half of the tooth opening, and an outer ring with 360 degrees of tooth opening, which is coaxial with the cavity disk 863, the first gear ring 883, and the second gear ring 893, and the corresponding outer rings of the first gear ring 883 and the second gear ring 893 have the same size, and the first gear support rod 861 and the second gear support rod 862 on both sides are respectively driven to rotate separately, and the inner ring of the special-shaped gear ring 864 has only half of the tooth opening, and during the reciprocating 360-degree rotation, it can drive the first gear support rod 861 and the second gear support rod 862 on both sides to perform one forward rotation and one reverse rotation with a certain interval difference;

[0069] The linkage cleaning steps of the cleaning mechanism 8 are specifically as follows:

[0070] First, the servo motor 867 on the linkage disc mechanism 86 controls the second gear head 868 at its output end to rotate 360 ​​degrees back and forth, which can drive the outer meshing special-shaped gear ring 864 to rotate 360 ​​degrees back and forth. The special-shaped gear ring 864 rotates 360 degrees back and forth, and the tooth opening of the half inner ring can be used to drive the first gear heads 865 on both sides to rotate forward and reverse, thereby controlling the two first gear support rods 861 and the second gear support rods 862 extending in the cleaning cavity box 81 to rotate forward and reverse, respectively, so that the meshing first sleeve 882 and the second sleeve 892 can rotate forward and reverse, respectively.

[0071] Then, in the working state that one of the first sleeve 882 and the second sleeve 892 rotates forward and the other rotates reversely, the airbag scraping arc sleeve 885 that is inflated and unfolded to fit the built-in MBR membrane tube 55 can reciprocately scrape the surface of the built-in MBR membrane tube 55. According to the strength of the built-in MBR membrane tube 55, the material of the scraping end of the airbag scraping arc sleeve 885 is selected, such as a flexible sponge or a tough brush. Under the rotation of the second sleeve 892, its spray plate 897 will also rotate and spray, so as to evenly cover the cleaning agent on the outer surface of the built-in MBR membrane tube 55. As the spray plate 897 keeps spraying, the inside of the cleaning cavity box 81 will eventually be filled. After it is filled, the injection is stopped, so that a temporary immersion cavity can be formed inside the cleaning cavity box 81.

[0072] Finally, by continuing the reciprocating rotation of the first sleeve 882 and the second sleeve 892, the airbag sleeve 895 is controlled to expand and unfold, so that the outer friction plate 896 fits against the outer surface of the extended arc plate 884, and heat is generated by reciprocating high-speed friction to heat up the immersion liquid in the immersion cavity, further improving the ability of the cleaning end to dissolve stains.

[0073] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Fig.10As shown, the outer surface of the cleaning cavity box 81 is located at a position corresponding to the internal connecting pipe head 894, and the first storage box 84 and the second storage box 85 are fixedly installed respectively; and the bottom of the first storage box 84 and the second storage box 85 are both provided with an extraction pump connected to the connecting pipe head 894 on the corresponding internal side, and a reserved pulling-out opening 869 for the second electric telescopic rod 92 to be inserted is opened at the axial position of the cavity disc 863; and a sealing sleeve is fixedly installed on the inner wall of the reserved pulling-out opening 869, and a pump 87 is fixedly installed at the bottom side position of the cleaning cavity box 81, and the extraction end of the pump 87 extends to the inner bottom of the cleaning cavity box 81, and a second lifting bracket 91 is fixedly installed on the side edge of the upper surface of the cavity disc 863, and the second electric telescopic rod 92 is fixedly installed at the bottom of the second lifting bracket 91.

[0074] The first storage box 84 and the second storage box 85 are designed to be separate, and in the cleaning process, the pump 87 can be used to perform multi-stage cleaning, specifically:

[0075] First, different cleaning agents can be selected according to the type of filtered water in the filter tank. Taking the garbage leachate in the city as an example, the cleaning agent at the filter end can be selected from acidic cleaning agent citric acid to remove blocked inorganic salt deposits, such as hardness salts such as calcium and magnesium, or alkaline cleaning agent sodium hydroxide to remove blocked organic pollutants, such as protein, fat, etc., which are injected into the first storage box 84, and the second storage box 85 on the other side can be connected to the expansion joint on the output end of the clean water outlet pipe 4, using the filtered clean water to form a state where one side is a cleaning chemical reagent and the other side is clean water;

[0076] Then, during the cleaning process, the cleaning chemical reagent is sprayed on the spray plate 897 connected to the first storage box 84 to dissolve the blocked stains, and the clean water is sprayed on the spray plate 897 connected to the second storage box 85 to clean the area sprayed with the cleaning chemical reagent to avoid long-term corrosion of the membrane group;

[0077] Finally, according to the cleaning requirements, after one round of immersion and spray cleaning, the internal cleaning liquid can be pumped out by pump 87, and then a second round of cleaning can be started. During the second round of cleaning, clean water can be used mainly to clean up the chemical reagents remaining on the outer surface of the membrane group to ensure subsequent stable use, or the content of the chemical reagents can be changed during the second round of cleaning to perform a second round of immersion cleaning.

[0078] An anti-clogging process for preventing a built-in MBR membrane from clogging comprises the following steps:

[0079] S1: First, the cleaning mechanism 8 is controlled by the multi-axis track support 7 to move to the top of the MBR membrane tube module 5 with cleaning;

[0080] S2: Then, the second electric telescopic rod 92 controls the electromagnetic block 93 at its output end to suck the corresponding built-in MBR membrane tube 55 into the interior of the cleaning cavity box 81;

[0081] S3: Then, the first cleaning cylinder module 88 and the second cleaning cylinder module 89 are driven by the linkage disc mechanism 86 to perform rotary immersion cleaning;

[0082] S4: Finally, the outward-turning sealing door 82 is reopened by the first electric telescopic rod 83 , and the cleaned built-in MBR membrane tube 55 is reinserted into the MBR membrane group support 1 in cooperation with the second electric telescopic rod 92 .

[0083] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A device for preventing a built-in MBR membrane from being blocked, comprising an MBR membrane group support (1), a combined housing (2), an aeration branch pipe (3), and a purified water outlet pipe (4), characterized in that: The MBR membrane group support (1) and the combined sleeve (2) are an integrated structure; the combined sleeve (2) is fixedly connected to the bottom of the MBR membrane group support (1) so as to be assembled inside the bioreactor of the filtration tank; the clean water outlet pipe (4) is fixedly installed on the long sides of the bottom of the MBR membrane group support (1); and a plurality of MBR membrane tube modules (5) are arranged along the clean water outlet pipe (4) on each long side; the aeration branch pipe (3) is fixedly installed at the middle position of the bottom of the MBR membrane group support (1) so as to align with the MBR membrane tube modules (5) on both sides for aeration; A panel with a leak (6) is fixedly mounted on the upper surface of the MBR membrane group support (1); and the leaks thereon correspond one-to-one to each MBR membrane tube module (5) at the bottom; a multi-axis rail support (7) is fixedly mounted on the outer side of the panel with a leak (6); a cleaning mechanism (8) is fixedly mounted on the output end of the multi-axis rail support (7); and a pumping mechanism (9) is arranged on the upper side of the cleaning mechanism (8); The extraction and washing mechanism (9) comprises a second electric telescopic rod (92) and an electromagnetic block (93) fixedly mounted on the output end of the second electric telescopic rod (92); the MBR membrane tube module (5) comprises a first lifting bracket (51) and an outer filter cover (52) fixedly mounted on the upper surface of the first lifting bracket (51); the inner part of the outer filter cover (52) is slidably provided with a built-in MBR membrane tube (55); the upper surface of the built-in MBR membrane tube (55) is fitted with a magnetic suction sleeve (58) corresponding to the electromagnetic block (93), so as to cooperate with the second electric telescopic rod (92) to pull the selected built-in MBR membrane tube (55) into the cleaning mechanism (8) for separate cleaning without interfering with other MBR membrane tube modules (5) to continue filtering; The cleaning mechanism (8) comprises a cleaning cavity box (81), the bottom of which is movably mounted an outward-turning sealing door (82), and first electric telescopic rods (83) connected to the two sides of the outward-turning sealing door (82) are movably hinged at positions on both sides of the outward-turning sealing door (82) outside the cleaning cavity box (81), and the two sides of the inner part of the outer filter cover (52) are fixedly mounted with slide rails (54), and the two sides of the outer surface of the built-in MBR membrane tube (55) are fixedly connected with limit slide bars (56) that are slidably sleeved in the slide rails (54), and the inner bottom of the outer filter cover (52) is fixedly mounted with a first inner magnetic suction ring (53), and the bottom of the built-in MBR membrane tube (55) is fixedly mounted with a second inner magnetic suction ring (57) that is adsorbed corresponding to the first inner magnetic suction ring (53); and the bottom of each built-in MBR membrane tube (55) is fixedly connected with an extension hose (59) that is in communication with the side water purification outlet pipe (4); The cleaning cavity box (81) further comprises a first cleaning cylinder module (88) and a second cleaning cylinder module (89), wherein the first cleaning cylinder module (88) comprises a first ring frame (881) fixedly connected to the upper side of the cleaning cavity box (81), and a first sleeve (882) is movably sleeved on the bottom of the first ring frame (881), and the second cleaning cylinder module (89) comprises a second ring frame (891) fixedly connected to the lower side of the cleaning cavity box (81), and a second sleeve (892) is movably sleeved on the upper side of the second ring frame (891); and the first sleeve (882) is movably sleeved in the second sleeve (892) as a whole; The bottom of the first sleeve (882) is circumferentially fixedly mounted with four expansion arc plates (884) in sequence; an airbag scraping arc sleeve (885) is fixedly mounted on the inner side of each expansion arc plate (884); the upper side of each airbag scraping arc sleeve (885) is connected in series via an air pipe, and a first gear ring (883) is fixedly mounted at the upper outer edge of the first sleeve (882); The inner wall of the second sleeve (892) is fixedly mounted with four airbag covers (895) in a circular pattern; a friction plate (896) is fixedly mounted on the outer surface of each airbag cover (895); a spray plate (897) is fixedly mounted between the two airbag covers (895); connecting pipe heads (894) are fixedly mounted at both sides of the outer surface of the second sleeve (892); the connecting pipe heads (894) on each side are connected and correspond to the adjacent spray plates (897) on both sides; a second gear ring (893) is fixedly mounted on the outer edge of the bottom of the second sleeve (892); The upper surface of the cleaning cavity box (81) is further provided with a linkage disk mechanism (86), the linkage disk mechanism (86) comprising a cavity disk (863), a first gear support rod (861) and a second gear support rod (862) being movably mounted at two sides of the cavity disk (863) at intervals of 180 degrees, the first gear support rod (861) and the second gear support rod (862) both extending into the interior of the cleaning cavity box (81); a gear meshing with a first gear ring (883) is arranged at the upper side of the first gear support rod (861) extending into the interior of the cleaning cavity box (81); and a gear meshing with a second gear ring (893) is arranged at the lower side of the second gear support rod (862) extending into the interior of the cleaning cavity box (81).

2. A device for preventing built-in MBR membrane from clogging according to claim 1, characterized in that: A first gear head (865) is fixedly mounted inside the cavity disk (863) at a position located above the first gear support rod (861) and the second gear support rod (862), and a special-shaped gear ring (864) is movably mounted inside the cavity disk (863) at a position outside the two first gear heads (865). The inner annular surface of the special-shaped gear ring (864) is provided with a tooth opening with a length of 180 degrees, and is meshed with the two first gear heads (865).

3. A device for preventing built-in MBR membrane from clogging according to claim 2, characterized in that: A side bin cavity (866) is fixedly mounted on the side of the cavity disk (863); a second gear head (868) is movably mounted inside the side bin cavity (866); an outer edge surface of the special-shaped gear ring (864) is provided with tooth openings corresponding to the meshing with the second gear head (868); a servo motor (867) is fixedly mounted on the upper side of the side bin cavity (866); an output end of the servo motor (867) passes through the inside of the side bin cavity (866) and is fixedly connected to the axis of the second gear head (868).

4. A device for preventing built-in MBR membrane from clogging according to claim 3, characterized in that: The first storage box (84) and the second storage box (85) are fixedly installed on the outer surface of the cleaning cavity box (81) at the position corresponding to the internal connecting pipe head (894); and the bottom of the first storage box (84) and the second storage box (85) are both provided with extraction pumps connected to the connecting pipe head (894) on the corresponding internal side; a reserved extraction opening (869) for the second electric telescopic rod (92) to be inserted is opened at the axial position of the cavity disc (863); and a sealing sleeve is fixedly installed on the inner wall of the reserved extraction opening (869); a pump (87) is fixedly installed at the side position of the bottom of the cleaning cavity box (81), and the extraction end of the pump (87) extends to the inner bottom of the cleaning cavity box (81); a second lifting bracket (91) is fixedly installed on the side edge of the upper surface of the cavity disc (863), and the second electric telescopic rod (92) is fixedly installed at the bottom of the second lifting bracket (91).

5. A process for preventing clogging of a built-in MBR membrane, characterized in that: The device for preventing the built-in MBR membrane from clogging according to any one of claims 1 to 4 comprises the following steps: S1: First, the cleaning mechanism (8) is controlled by the multi-axis track support (7) to move to the top of the MBR membrane tube module (5) with cleaning; S2: Then, the second electric telescopic rod (92) controls the electromagnetic block (93) at its output end to suck the corresponding built-in MBR membrane tube (55) into the interior of the cleaning cavity box (81); S3: Then, the linkage disc mechanism (86) drives the first cleaning cylinder module (88) and the second cleaning cylinder module (89) to perform rotational immersion cleaning; S4: Finally, the outward-turning sealing door (82) is reopened by the first electric telescopic rod (83), and the cleaned built-in MBR membrane tube (55) is reinserted into the MBR membrane group support (1) in cooperation with the second electric telescopic rod (92).

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