Integrated mbr sewage treatment device and method

Abstract

The application discloses an integrated MBR sewage treatment device and method, which comprises a main frame and an aerobic tank, one side of the inside of the main frame is provided with an anaerobic tank, the bottom end of the inside of the anaerobic tank is provided with an anaerobic aeration pipe, the inside of the anaerobic tank is provided with anaerobic fillers, one side of the anaerobic tank is provided with the aerobic tank, the bottom end of the inside of the MBR tank is provided with a pollution cleaning structure, the inside of the MBR tank is provided with an MBR (Membrane Bioreactor), one side of the MBR tank is provided with an electric control room. The application is provided with an auxiliary structure, when replacing, only need to take down the limiting sheet and slide out several pairs of connecting sleeves along the guide groove through the limiting groove, according to the actual situation, the damaged filler strip can be replaced, so as to avoid the whole replacement and consume too much, when the connecting sleeve needs to be installed, only need to slide into the outside of the rotating rod along the guide groove, and the limiting sheet is clamped into the inside of the internal thread sleeve and fastened by using bolts and other fasteners, so that the convenience of the filler replacement is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of MBR sewage treatment device, in particular to an integrated MBR sewage treatment device and method. BACKGROUND

[0002] The MBR sewage treatment device is a special sewage treatment device with a membrane bioreactor as a main filtration and purification means. Through special reaction membranes of different specifications, most suspended solids and corresponding bacteria in sewage can be efficiently removed, so that the turbidity of the purified sewage is close to zero.

[0003] Therefore, the patent specification with the publication number CN206872519U discloses an integrated MBR sewage treatment device. The integrated MBR sewage treatment device includes a shell, the inside of the shell is separated into an anoxic zone and an aerobic MBR zone by a first partition; a second partition and a third partition both have through holes, the inner diameter of the through holes is smaller than the outer diameter of the filler; the filler is arranged in the second zone; the second partition and the third partition arranged above and below separate the anoxic zone into a first zone, a second zone and a third zone from top to bottom; the inlet end of a conveying unit is arranged in the aerobic MBR zone, and the outlet end is arranged in the anoxic zone; an MBR membrane assembly is arranged in the aerobic MBR zone; a pipeline transports the treated sewage output by the MBR membrane assembly and discharges the treated sewage from the shell; an aeration unit is arranged in the anoxic zone and the aerobic MBR zone, respectively. The utility model has the advantages of good treatment effect, small land occupation, etc. The above-mentioned MBR sewage treatment device has good treatment effect when in use, but still has some problems.

[0004] 1. Since the corresponding fillers in the aerobic tank and the anaerobic tank are prone to adsorbing a large number of microorganisms and decomposing corresponding inorganic substances in the sewage for a long time, it is often inconvenient to replace the fillers.

[0005] 2. Since most of the sewage contains not only small pollution components such as heavy metal ions and suspended solids, but also some large pollutants such as particles and silt, if the large pollutants are not preliminarily treated and directly treated by the double number device, a large amount of precipitates may appear in the device. SUMMARY

[0006] The purpose of the present application is to provide an integrated MBR sewage treatment device and method to solve the problem of inconvenient replacement of fillers in the existing MBR sewage treatment device.

[0007] In order to solve the above technical problems, the present application provides the following technical solutions: integrated MBR sewage treatment device and method, including main frame and aerobic tank, one side of the inside of the main frame is provided with anaerobic tank, the bottom end of the inside of the anaerobic tank is installed with anaerobic aeration pipe, the inside of the anaerobic tank is provided with anaerobic filler, one side of the anaerobic tank is provided with aerobic tank, the top of the anaerobic tank is installed with primary filtration mechanism, the primary filtration mechanism includes filter frame, connecting frame, blowdown pipe, discharge rod and filter hole, the filter frame is fixedly connected to the top of the anaerobic tank, the top end of the inside of the filter frame is fixedly connected with the connecting frame, the bottom end of the connecting frame is fixedly connected with the blowdown pipe, the inside of the blowdown pipe is rotatably connected with the discharge rod, and the filter hole is formed in the middle position of the bottom end of the blowdown pipe;The inside of the aerobic tank is installed with auxiliary structure, the auxiliary structure includes support frame, rotating rod, transmission belt assembly, guide groove, butt joint sleeve, filler strip, guide block, limiting groove, limiting sheet and internal thread groove, the support frame is arranged in the inside of the aerobic tank, the inner side of the support frame is rotatably connected with the rotating rod, the top end of the rotating rod penetrates to the top of the support frame and is fixedly connected with the bottom end of the transmission belt assembly, the inside of both ends of the rotating rod is provided with guide groove, both ends of the rotating rod are installed with butt joint sleeve, the outer wall of the butt joint sleeve is fixedly connected with the filler strip, the inner wall of the butt joint sleeve is fixedly connected with the guide block, the top end of the guide groove is provided with limiting groove, the limiting groove is inlaid with limiting sheet, one end of the inside of the limiting groove is provided with internal thread groove, the bottom end of the inside of the aerobic tank is installed with microporous aerator, and one side of the aerobic tank is provided with MBR tank;The bottom end of the inside of the MBR tank is provided with cleaning structure, the cleaning structure includes first protective frame, sliding rod, cross bar, second protective frame, reciprocating screw rod, sliding sleeve base, scraper and internal thread sleeve, the first protective frame is fixedly connected below both sides of the MBR tank, the inside of the first protective frame is fixedly connected with the sliding rod, the bottom of the first protective frame is provided with cross bar, the top of the middle position of the cross bar is provided with the second protective frame, the inner side of the second protective frame is rotatably connected with the reciprocating screw rod, the outer side of the sliding rod is provided with the sliding sleeve base, the bottom end of the cross bar is fixedly connected with the scraper, and the outer side of the reciprocating screw rod is threadedly connected with the internal thread sleeve;The inside of the MBR tank is provided with MBR, and one side of the MBR tank is provided with electric control room.

[0008] When in use, the sewage to be purified is poured into the inside of the connecting frame, and then the device is started through the electric control chamber, at this time the motor is started and drives the discharge rod to rotate, so that the sewage flows into the inside of the sewage pipe, and most of the particulate impurities are discharged through the rotation of the discharge rod, and the remaining sewage flows into the inside of the anaerobic tank through the filter holes, when the sewage is poured into the inside of the anaerobic tank to a certain degree, the connecting frame is closed to form a certain anaerobic space in the inside of the anaerobic tank, through long-term storage, the anaerobic filler attached with a large number of anaerobic microorganisms rapidly reproduces, and the organic matter in the sewage is rapidly decomposed, metabolized and digested, so that the organic matter in the sewage is removed, at the same time, in order to improve the decomposition efficiency of the anaerobic organisms, special gas can be injected into the inside of the anaerobic tank through the anaerobic aeration pipe at regular intervals, so that the organic matter is gradually stirred and dispersed in the inside of the anaerobic tank, so as to speed up the microbial decomposition and accelerate the anaerobic treatment of the sewage, when the sewage in the anaerobic tank is treated and injected into the inside of the aerobic tank, the organic matter is further decomposed into inorganic matter by the aerobic organisms attached to the surface of the filler strip, so as to further purify and treat the sewage, at the same time, a large amount of air can be injected into the inside of the aerobic tank through the microporous aerator at regular intervals, so as to speed up the dispersion of the organic matter and the decomposition of the aerobic microorganisms, so as to improve the efficiency of the aerobic treatment of the sewage, when the aerobic tank is treated, the sewage flows into the inside of the MBR membrane bioreactor for subsequent treatment, through the high molecular material membrane with different pore sizes of the MBR membrane, the suspended solids, bacteria and various heavy metal ions in the sewage are filtered and permeated, so that the sewage is completely purified, when the sewage is treated, it is discharged outside through the specified pipeline.

[0009] Preferably, the rotating rods are equidistantly distributed in the inside of the support frame, the guide groove and the guide block are in sliding structure, so that the installation of the butt joint sleeve is more convenient.

[0010] Preferably, the filler strips are equidistantly distributed on the outside wall of the butt joint sleeve, the limiting groove and the limiting sheet are in inlay structure.

[0011] Preferably, the sliding rod and the sliding sleeve seat are in sliding structure, the reciprocating screw rod and the internally threaded sleeve are in threaded connection structure, so that the sediments can be scraped out and collected.

[0012] Preferably, the first protective frame is symmetrically distributed below the inside of the MBR tank, and the second protective frame and the reciprocating screw rod are in rotating structure.

[0013] Preferably, a plurality of filter holes are formed in the bottom of the sewage pipe, and the plurality of filter holes are equidistantly distributed in the bottom of the sewage pipe, so that the particulate matter can be filtered.

[0014] The integrated MBR sewage treatment device and method comprises the following steps:

[0015] S1. Preliminary filtration: the sewage to be purified is poured into the inside of the connecting frame, and then the device is started by the electric control chamber, at this time the motor is started and drives the discharge rod to rotate, so that the sewage flows into the inside of the sewage pipe, and most of the particulate impurities are discharged by the rotation of the discharge rod, and the remaining sewage flows into the inside of the anaerobic tank through the filter hole;

[0016] S2. Anaerobic biological treatment: when the sewage is poured into the inside of the anaerobic tank to a certain extent, the connecting frame is closed to form a certain anaerobic space in the inside of the anaerobic tank, and the anaerobic filler attached with a large number of anaerobic microorganisms is rapidly reproduced by long-term storage, and the organic matter in the sewage is rapidly decomposed, metabolized and digested, so as to remove the organic matter in the sewage;

[0017] S3. Aerobic biological treatment: when the sewage in the anaerobic tank is treated, it is poured into the inside of the aerobic tank, and the aerobic organisms attached to the surface of the filler strip further decompose the organic matter into inorganic matter, so as to further purify the sewage;

[0018] S4. MBR membrane biological treatment: when the aerobic tank treatment is completed, the sewage flows into the inside of the MBR membrane biological reactor for subsequent treatment, and the suspended solids, bacteria and various heavy metal ions in the sewage are filtered and permeated by the high molecular material membrane with different pore sizes of the MBR membrane, so that the sewage is completely purified;

[0019] S5. Discharge: when the sewage treatment is completed, it is discharged outward through the specified pipeline.

[0020] The integrated MBR sewage treatment device and method provided by the application has the advantages that: by setting the auxiliary structure, when replacing, only the limiting sheet needs to be taken down and a plurality of butt joint sleeves are slid outward along the guide groove through the limiting groove, so that the damaged filler strip can be replaced according to the actual situation, thereby avoiding excessive consumption of the whole replacement, and when the butt joint sleeve needs to be installed, it only needs to be slid along the guide groove and re-slid into the outside of the rotating rod, and the limiting sheet is clamped into the inside of the internal thread sleeve and fastened by using bolts and the like, so that the convenience of replacing the filler is improved;

[0021] By setting the cleaning structure, the motor is started to drive the reciprocating screw rod to rotate, so that the internal thread sleeve connected with the reciprocating screw rod reciprocally moves along the external thread of the reciprocating screw rod, and under the sliding structure of the sliding rod and the sliding sleeve seat, the horizontal rod can stably drive the scraper to scrape and push the sediment, so that the sediment is collected to the direction of the sludge reflux pump, thereby facilitating the discharge of the sediment, and the collection and removal of the sediment are realized.

[0022] When sewage is poured through the connecting frame, the motor on one side of the filter frame is started to drive the discharge rod to rotate, at this time, the sewage will flow downward through the filter hole, and the larger particle impurities will be discharged outward under the rotation of the discharge rod, thereby preliminarily filtering the sewage and reducing the subsequent processing burden of the device, and realizing the preliminary filtration of the sewage. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view of the structure of the application;

[0024] Figure 2 It is a three-dimensional local structure schematic diagram of the auxiliary structure of the application;

[0025] Figure 3 It is a top view of the local section structure schematic diagram of the auxiliary structure of the application;

[0026] Figure 4 It is a front view of the local disassembly structure schematic diagram of the auxiliary structure of the application;

[0027] Figure 5 It is a front view of the local section structure schematic diagram of the cleaning structure of the application;

[0028] Figure 6 It is a three-dimensional local structure schematic diagram of the cleaning structure of the application

[0029] Figure 7 It is a front view of the section structure schematic diagram of the primary filtration mechanism of the application

[0030] Figure 8 It is a three-dimensional local structure schematic diagram of the primary filtration mechanism of the application.

[0031] In the figure: 1, main frame; 2, anaerobic tank; 3, anaerobic aeration pipe; 4, anaerobic filler; 5, aerobic tank; 6, auxiliary structure; 601, support frame; 602, rotating rod; 603, transmission belt assembly; 604, guide groove; 605, butt joint sleeve; 606, filler strip; 607, guide block; 608, limiting groove; 609, limiting sheet; 610, internal thread groove; 7, microporous aerator; 8, MBR tank; 9, cleaning structure; 901, first protective frame; 902, sliding rod; 903, cross rod; 904, second protective frame; 905, reciprocating screw rod; 906, sliding sleeve seat; 907, scraper; 908, internal thread sleeve; 10, MBR membrane bioreactor; 11, electric control chamber; 12, primary filtration mechanism; 1201, filter frame; 1202, connecting frame; 1203, blowdown pipe; 1204, discharge rod; 1205, filter hole. DETAILED DESCRIPTION

[0032] Clearly, the embodiments described are only a part of all the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] Please refer to Figures 1-8 The application provides an integrated MBR sewage treatment device and method, which comprises a main frame 1 and an aerobic tank 5. An anaerobic tank 2 is arranged on one side of the inside of the main frame 1. An anaerobic aeration pipe 3 is installed at the bottom of the inside of the anaerobic tank 2. Anaerobic fillers 4 are arranged in the inside of the anaerobic tank 2. The aerobic tank 5 is arranged on one side of the anaerobic tank 2. A microporous aerator 7 is installed at the bottom of the inside of the aerobic tank 5. An MBR tank 8 is arranged on one side of the aerobic tank 5. An MBR membrane bioreactor 10 is arranged in the inside of the MBR tank 8. An electric control room 11 is arranged on one side of the MBR tank 8. An auxiliary structure 6 is installed in the inside of the aerobic tank 5. The auxiliary structure 6 comprises a support frame 601, a rotating rod 602, a transmission belt assembly 603, a guide groove 604, a butt joint sleeve 605, a filler strip 606, a guide block 607, a limiting groove 608, a limiting sheet 609 and an internal thread groove 610. The support frame 601 is arranged in the inside of the aerobic tank 5. The rotating rod 602 is rotatably connected to the inner side of the support frame 601. The top end of the rotating rod 602 penetrates through the top of the support frame 601 and is fixedly connected with the bottom end of the transmission belt assembly 603. The guide grooves 604 are arranged in the inside of both ends of the rotating rod 602. The butt joint sleeves 605 are installed at both ends of the rotating rod 602. The filler strips 606 are fixedly connected to the outer side walls of the butt joint sleeves 605. The guide blocks 607 are fixedly connected to the inner side walls of the butt joint sleeves 605. The limiting grooves 608 are arranged at the top end of the guide grooves 604. The limiting sheets 609 are inlaid in the inside of the limiting grooves 608. The internal thread grooves 610 are arranged at one end of the inside of the limiting grooves 608. The rotating rod 602 is distributed at equal intervals in the inside of the support frame 601. The guide grooves 604 and the guide blocks 607 are in sliding structure. The filler strips 606 are distributed at equal intervals on the outer side walls of the butt joint sleeves 605. The limiting grooves 608 and the limiting sheets 609 are in inlaid structure.

[0034] Refer to the attached Figure 1 , Figure 2 , Figure 3 and Figure 4In use, the sewage treatment device, the sewage to be purified is poured into the inside of the connecting frame 1202, and then the device is started by the electric control chamber 11. At this time, the motor is started and drives the discharge rod 1204 to rotate, so that the sewage flows into the sewage pipe 1203, and most of the particulate impurities are discharged by the rotation of the discharge rod 1204, and the remaining sewage flows into the inside of the anaerobic tank 2 through the filter hole 1205. When the sewage is poured into the inside of the anaerobic tank 2 to a certain extent, the connecting frame 1202 is closed to form a certain anaerobic space in the inside of the anaerobic tank 2. By storing for a long time, the anaerobic filler 4 attached with a large number of anaerobic microorganisms rapidly reproduces, and rapidly decomposes, metabolizes and digests the organic matter in the sewage, so as to remove the organic matter in the sewage. At the same time, in order to improve the decomposition efficiency of the anaerobic organisms, special gas can be injected into the inside of the anaerobic tank 2 through the anaerobic aeration pipe 3 regularly, so that the organic matter is gradually stirred and dispersed in the inside of the anaerobic tank 2, so as to speed up the microbial decomposition and speed up the anaerobic treatment of the sewage. When the sewage in the anaerobic tank 2 is treated and injected into the inside of the aerobic tank 5, the aerobic organisms attached to the surface of the filler strip 606 further decompose the organic matter into inorganic matter, so as to further purify and treat the sewage. At the same time, a large amount of air is injected into the inside of the aerobic tank 5 through the microporous aerator 7 regularly, so as to speed up the dispersion of the organic matter and speed up the decomposition of the aerobic microorganisms, so as to improve the efficiency of the aerobic treatment of the sewage. When the aerobic tank 5 is treated, the sewage flows into the inside of the MBR membrane bioreactor 10 for subsequent treatment. By the high molecular material membrane with different pore sizes of the MBR membrane, the suspended solids, bacteria and various heavy metal ions in the sewage are filtered and permeated, so that the sewage is completely purified. When the sewage treatment is completed, the sewage is discharged outside through the specified pipeline. In this process, the filler strip 606 is easily damaged or the number of microorganisms is reduced due to long-term use. Therefore, the filler strip 606 needs to be replaced regularly. In order to facilitate the replacement of the filler strip 606, the filler strip 606 is fixed to the outer side wall of the butt joint sleeve 605. When replacing, only the limiting piece 609 needs to be removed, and a plurality of butt joint sleeves 605 are slid outwards along the guide groove 604 through the limiting groove 608. In this way, the damaged filler strip 606 can be replaced according to the actual situation, so as to avoid excessive consumption of the whole replacement. When the butt joint sleeve 605 needs to be installed, it only needs to be slid along the guide groove 604 to the outside of the rotating rod 602, and the limiting piece 609 is clamped into the inside of the internal thread sleeve 908 and fastened by using bolts and the like.

[0035] The bottom end inside the MBR tank 8 is provided with a cleaning structure 9, which includes a first guard frame 901, a sliding rod 902, a cross rod 903, a second guard frame 904, a reciprocating screw rod 905, a sliding sleeve base 906, a scraper 907 and an internal threaded sleeve 908, the first guard frame 901 is fixedly connected to the lower side of the MBR tank 8, the sliding rod 902 is fixedly connected to the inside of the first guard frame 901, the cross rod 903 is arranged below the first guard frame 901, the second guard frame 904 is arranged above the middle position of the cross rod 903, the reciprocating screw rod 905 is rotatably connected to the inner side of the second guard frame 904, the sliding sleeve base 906 is sleeved on the outer side of the sliding rod 902, the scraper 907 is fixedly connected to the bottom end of the cross rod 903, the internal threaded sleeve 908 is threadedly connected to the outer side of the reciprocating screw rod 905, the sliding rod 902 and the sliding sleeve base 906 are in sliding structure, the reciprocating screw rod 905 and the internal threaded sleeve 908 are in threaded connection structure, the first guard frame 901 is symmetrically distributed below the MBR tank 8, and the second guard frame 904 and the reciprocating screw rod 905 are in rotating structure.

[0036] Referring to the accompanying drawings Figure 1 , Figure 5 and Figure 6 , when the MBR tank 8 is used for treating sewage by the MBR membrane bioreactor 10, a large amount of sediment is prone to appear at the bottom of the MBR tank 8, in order to facilitate the cleaning of the sediment, a sludge reflux pump capable of adsorbing sludge is installed at one end of the MBR tank 8, in order to facilitate the collection of the sediment by the sludge reflux pump, the first guard frame 901 is fixed on both sides inside the MBR tank 8, and the reciprocating screw rod 905 is driven to rotate by a motor, so that the internal threaded sleeve 908 threadedly connected thereto moves back and forth along the outer side of the reciprocating screw rod 905, and the cross rod 903 stably drives the scraper 907 to scrape and push the sediment under the sliding structure of the sliding rod 902 and the sliding sleeve base 906, so that the sediment is collected towards the sludge reflux pump, thereby facilitating the discharge of the sediment.

[0037] The top end of the anaerobic tank 2 is provided with a primary filtration mechanism 12, which includes a filter frame 1201, a connecting frame 1202, a blowdown pipe 1203, a discharge rod 1204 and filter holes 1205, the filter frame 1201 is fixedly connected to the top of the anaerobic tank 2, the connecting frame 1202 is fixedly connected to the top end inside the filter frame 1201, the blowdown pipe 1203 is fixedly connected to the bottom end of the connecting frame 1202, the discharge rod 1204 is rotatably connected to the inside of the blowdown pipe 1203, the filter holes 1205 are arranged at the middle position of the bottom end of the blowdown pipe 1203, and a plurality of filter holes 1205 are arranged at the bottom of the blowdown pipe 1203 and are equally spaced.

[0038] Referring to the accompanying drawings Figure 1 , Figure 7 and Figure 8In order to avoid the burden of the device caused by the large amount of particles and impurities in the sewage, a filter frame 1201 is fixed on the top of the anaerobic tank 2. When the sewage is poured through the connecting frame 1202, the motor on one side of the filter frame 1201 is started to drive the discharge rod 1204 to rotate. At this time, the sewage flows downward through the filter hole 1205, and the large particle impurities are discharged outward under the rotation of the discharge rod 1204, thereby preliminarily filtering the sewage and reducing the subsequent processing burden of the device.

[0039] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can make modifications to the technical solutions described in the foregoing embodiments or make equivalent replacements to part of the technical features, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated MBR sewage treatment device, comprising a main frame and an aerobic tank; Its characterized in that: One side of the inside of the main frame is provided with an anaerobic tank, the bottom of the inside of the anaerobic tank is provided with an anaerobic aeration pipe, the inside of the anaerobic tank is provided with anaerobic filler, one side of the anaerobic tank is provided with an aerobic tank, and the top of the anaerobic tank is provided with a primary filtration mechanism; The inside of the aerobic tank is provided with an auxiliary structure, the auxiliary structure comprises a support frame, a rotating rod, a transmission belt assembly, a guide groove, a butt joint sleeve, a filler strip, a guide block, a limiting groove, a limiting sheet and an internal thread groove, the support frame is arranged in the inside of the aerobic tank, the inner side of the support frame is rotatably connected with the rotating rod, the top end of the rotating rod penetrates through the top of the support frame and is fixedly connected with the bottom end of the transmission belt assembly, the inside of both ends of the rotating rod is provided with a guide groove, both ends of the rotating rod is provided with a butt joint sleeve, the outer wall of the butt joint sleeve is fixedly connected with a filler strip, the inner wall of the butt joint sleeve is fixedly connected with a guide block, the top end of the guide groove is provided with a limiting groove, the limiting groove is inlaid with a limiting sheet, one end of the limiting groove is provided with an internal thread groove, the rotating rod is distributed at equal intervals in the inside of the support frame, the guide groove and the guide block are in sliding structure, the filler strip is distributed at equal intervals on the outer wall of the butt joint sleeve, the limiting groove and the limiting sheet are in inlay structure, the bottom of the inside of the aerobic tank is provided with a microporous aerator, and one side of the aerobic tank is provided with an MBR tank. The bottom of the inside of the MBR tank is provided with a cleaning structure, the cleaning structure comprises a first protective frame, a sliding rod, a cross bar, a second protective frame, a reciprocating screw rod, a sliding sleeve seat, a scraper and an internal thread sleeve, the first protective frame is fixedly connected below both sides of the MBR tank, the inside of the first protective frame is fixedly connected with a sliding rod, the bottom of the first protective frame is provided with a cross bar, the top of the middle position of the cross bar is provided with a second protective frame, the inner side of the second protective frame is rotatably connected with a reciprocating screw rod, the outer side of the sliding rod is provided with a sliding sleeve seat, the bottom of the cross bar is fixedly connected with a scraper, and the outer side of the reciprocating screw rod is threadedly connected with an internal thread sleeve.

2. The integrated MBR wastewater treatment device according to claim 1, characterized in that: The sliding rod and the sliding sleeve seat are in sliding structure, and the reciprocating screw rod and the internal thread sleeve are in threaded connection structure.

3. The integrated MBR wastewater treatment device of claim 1, wherein: The first protective frame is symmetrically distributed below the inside of the MBR tank, and the second protective frame and the reciprocating screw rod are in rotating structure.

4. The integrated MBR wastewater treatment device of claim 1, wherein: The primary filtration mechanism comprises a filter frame, a connecting frame, a blowdown pipe, a discharge rod and a filter hole, the filter frame is fixedly connected to the top of the anaerobic tank, the top of the inside of the filter frame is fixedly connected with a connecting frame, the bottom end of the connecting frame is fixedly connected with a blowdown pipe, the inside of the blowdown pipe is rotatably connected with a discharge rod, and the middle position of the bottom end of the blowdown pipe is provided with a filter hole.

5. The integrated MBR wastewater treatment device of claim 4, wherein: The filter hole is provided with a plurality of filter holes at the bottom of the blowdown pipe, and the plurality of filter holes are distributed at equal intervals at the bottom of the blowdown pipe.

6. The method of the integrated MBR sewage treatment device according to any one of claims 1-5, comprising the following steps, characterized in that: S1. Preliminary filtration: the sewage to be purified is poured into the inside of the connecting frame, and then the device is started by the electric control chamber. At this time, the motor is started and drives the discharge rod to rotate, so that the sewage flows into the inside of the sewage pipe. Most of the particulate impurities are discharged by the rotation of the discharge rod, and the remaining sewage flows into the inside of the anaerobic tank through the filter hole; S2. Anaerobic biological treatment: when the sewage is poured into the inside of the anaerobic tank to a certain extent, the connecting frame is closed to form a certain anaerobic space in the inside of the anaerobic tank. By storing for a long time, the anaerobic filler attached with a large number of anaerobic microorganisms can rapidly reproduce, and the organic matter in the sewage can be rapidly decomposed, metabolized and digested, so as to remove the organic matter in the sewage; S3. Aerobic biological treatment: after the sewage in the anaerobic tank is treated, it is poured into the inside of the aerobic tank. The aerobic organisms attached to the surface of the filler strip further decompose the organic matter into inorganic matter, so as to further purify the sewage; S4. MBR membrane biological treatment: after the aerobic tank is treated, the sewage flows into the inside of the MBR membrane biological reactor for subsequent treatment. By using the high molecular material membrane with different pore sizes of the MBR membrane, the suspended solids, bacteria and various heavy metal ions in the sewage are filtered and permeated, so that the sewage is completely purified; S5. Discharge: after the sewage is treated, it is discharged outside through the specified pipeline.

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