Anaerobic membrane bioreactor for wine brewing wastewater treatment

Abstract

The present invention relates to the technical field of wastewater treatment system corollary equipment, particularly to an anaerobic membrane bioreactor for wine brewing wastewater treatment, the anaerobic membrane bioreactor comprises a support frame, a precipitation tank, a base and a main reaction tank, the main reaction tank is communicated with the precipitation tank through a delivery pipe, and a second motor is mounted outside the main reaction tank; the sludge treatment assembly comprises a lifting assembly, a water spraying frame, a nozzle, a transverse communicating pipe and a water conveying pipe; the two water spraying frames are arranged in parallel, the transverse communicating pipe is horizontally connected between the bottoms of the two water spraying frames, the interior of the transverse communicating pipe is communicated with the interiors of the water spraying frames, the nozzles are installed on the opposite sides of the water spraying frames, and the transverse communicating pipe is connected with external water supply equipment through a water conveying pipe. After the anaerobic membranes complete sewage treatment and water at the bottom of the reaction tank is discharged, the positions of the anaerobic membranes and the flushing frame below are adjusted, so that the flushing frame simultaneously cleans the two sides of the anaerobic membranes on the two sides.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment system supporting equipment, and in particular to an anaerobic membrane bioreactor for brewing wastewater treatment. Background Art

[0002] In the anaerobic membrane bioreactor, the wastewater to be treated first enters the anaerobic reactor and contacts with anaerobic microorganisms. Organic matter is converted into biogas under the action of microorganisms. At the same time, due to the presence of the membrane, solid matter and organic matter that has not been degraded by microorganisms are effectively intercepted, and only treated water is allowed to pass through the membrane surface. Through external pumping or applying vacuum, the filtration process of the membrane can be maintained to ensure the continuous output of clean water, while retaining pollutants and microorganisms in the reactor.

[0003] Wastewater generated in the brewing process includes sewage, spent grains and yeast residues.

[0004] There is a publication number CN108328869B, which is called an anaerobic membrane bioreactor. An upper reaction assembly and a lower reaction assembly are arranged in the box, and the upper reaction assembly and the lower reaction assembly respectively include a plurality of membranes. An upper water inlet and a lower water inlet are provided on one side wall of the box, and an upper water outlet and a lower water outlet are provided on the other side wall of the box; the top of the box has an exhaust port connected to an external gas collection tank, an upper water inlet valve is connected between the upper water inlet and the discharge port of the upstream anaerobic digestion tank, a lower water inlet valve is connected between the lower water inlet and the discharge port of the upstream anaerobic digestion tank, an upper drain valve is connected between the water outlet end of the upper reaction assembly and the downstream water collection tank, and a lower drain valve is connected between the water outlet end of the lower reaction assembly and the downstream water collection tank. The anaerobic membrane bioreactor is not prone to membrane contamination and can effectively ensure the wastewater treatment efficiency and treatment effect.

[0005] Although the above application can ensure the wastewater treatment efficiency, when the anaerobic membrane is cleaned in the reaction tank without being disassembled, if one side of it is cleaned, the anaerobic membrane is covered with micropores that allow water to pass through. Only one side of the anaerobic membrane is flushed, and the flushing part cannot adjust the angle, so that the other side of the anaerobic membrane cannot be effectively cleaned. When the water outlet speed of the nozzle is increased, the anaerobic membrane will be damaged. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an anaerobic membrane bioreactor for treating brewery wastewater.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An anaerobic membrane bioreactor for brewery wastewater treatment is designed, comprising a support frame, a sedimentation tank, a base and a main reaction tank, wherein the main reaction tank is connected to the sedimentation tank through a conveying pipe:

[0009] An anaerobic membrane assembly is rotatably arranged in the main reaction tank, a second motor is installed outside the main reaction tank, an output shaft of the second motor is connected to the anaerobic membrane assembly, and a port position of the delivery pipe matches an upper end position of the anaerobic membrane assembly;

[0010] A sludge treatment assembly is disposed at the bottom of the main reaction tank in a longitudinally movable manner;

[0011] The sludge treatment component lifting component, water spraying frame, nozzle, horizontal connecting pipe and water delivery pipe;

[0012] The two water spray racks are arranged parallel to each other, the horizontal connecting pipe is horizontally connected between the bottoms of the two water spray racks, the interior of the horizontal connecting pipe is connected to the interior of the water spray rack, the nozzles are installed on the opposite side of the water spray rack, and the horizontal connecting pipe is connected to an external water supply device through a water pipe.

[0013] Preferably, the lifting assembly comprises a threaded rod, a first motor and a threaded sleeve;

[0014] The first motor is installed at the bottom of the main reaction tank, the threaded rod is connected to the output shaft of the first motor, the threaded sleeve is installed on one side of the horizontal connecting pipe, and the upper end of the threaded rod passes through the threaded sleeve and extends to the top of the threaded sleeve.

[0015] Preferably, a slide rail is symmetrically provided on the inner side of the main reaction tank, a limit block is slidably provided in the slide rail, and a long rod is connected between the limit block and the water spray frame.

[0016] Preferably, auxiliary drug injection components are provided at the bottom of the transverse connecting pipe and the bottom of the main reaction tank, and pollutants on the surface of the anaerobic membrane are destroyed by adding reagents.

[0017] Preferably, the auxiliary injection assembly includes a push rod, a discharge pipe, a sleeve, an annular gasket, an inner cylinder, a first spring, an ejection assembly, a one-way valve and a piston plate;

[0018] The inner cylinder is fixedly mounted at the bottom of the main reaction tank, the sleeve is sleeved on the outside of the inner cylinder, a piston plate is arranged on the upper part of the inner cylinder, an annular gasket is arranged on the lower end of the outer side of the sleeve, the discharge pipe is mounted on the top of the sleeve, and the discharge pipe is connected with the inside of the inner cylinder through the sleeve;

[0019] The push rod is installed at the lower end of the horizontal connecting pipe, and the position of the push rod matches the position of the annular gasket;

[0020] The outer side of the inner cylinder is sleeved with a first spring, and the first spring is located between the annular gasket and the bottom of the main reaction tank;

[0021] The one-way valve is installed in the piston plate, and the inner cylinder is filled with medicine through a pipeline.

[0022] Preferably, the ejection assembly includes a second spring, a clamping block, a leak hole, an ejector pin and an annular plate;

[0023] The second spring is installed on the inner side of the transverse connecting pipe, the clamping block is connected to the bottom of the second spring, the clamping block is clamped in the leakage hole, and the leakage hole is opened on the transverse connecting pipe, and the vertical section of the leakage hole is an isosceles trapezoid with a larger size at the upper end;

[0024] The annular plate is arranged at the channel inside the discharge pipe, the ejector pin is mounted on the annular plate, and when the clamping block moves downward, the ejector pin pushes the clamping block away from the leak hole.

[0025] Preferably, a material receiving screen bucket is provided on one side of the sedimentation tank close to the conveying pipe, a notch is provided at the lower end of one side of the material receiving screen bucket, a stirring blade is rotatably provided at the notch, and the stirring blade is connected to an external third motor through a transmission shaft.

[0026] Preferably, a partition is obliquely provided at the lower end of one side of the stirring blade, a plurality of slots are distributed in an array on the partition, a discharge plate is installed at the end of the partition, and a discharge port is provided on the sedimentation tank on one side of the discharge plate.

[0027] Preferably, a connecting frame is symmetrically installed above the partition, and the two connecting frames are connected by a rotating shaft, and one end of the rotating shaft extends to the outside of the precipitation tank and is connected to the output shaft of the fourth motor;

[0028] A plurality of round rods are distributed in a circular array between the two connecting frames, sleeves are sleeved on the outer sides of the round rods, and straight plates are hung on the outer sides of the sleeves.

[0029] Preferably, when the straight plate rotates to the upper end of the partition, the straight plate is deflected at an angle during the process of contacting with the partition, and a distance is set between the straight plate and the material receiving screen bucket when the straight plate rotates.

[0030] The present invention proposes an anaerobic membrane bioreactor for treating brewery wastewater, which has the beneficial effect that after the anaerobic membrane completes the treatment of the sewage and discharges the water at the bottom of the reaction tank, the position of the anaerobic membrane and the flushing rack below is adjusted so that the flushing rack can clean both sides of the anaerobic membranes at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1This is a schematic diagram of the structure of an anaerobic membrane bioreactor for brewing wastewater treatment proposed by the present invention.

[0032] Figure 2 This is a structural front view of an anaerobic membrane bioreactor for brewing wastewater treatment proposed by the present invention.

[0033] Figure 3 This is an isometric view of the structure of an anaerobic membrane bioreactor for brewery wastewater treatment proposed by the present invention.

[0034] Figure 4 This is a structural bottom view of a sludge treatment component of an anaerobic membrane bioreactor for brewery wastewater treatment proposed by the present invention.

[0035] Figure 5 This is a schematic structural diagram from another perspective of a sludge treatment component of an anaerobic membrane bioreactor for brewing wastewater treatment proposed by the present invention.

[0036] Figure 6 This is a schematic diagram of the internal structure of a sedimentation tank of an anaerobic membrane bioreactor for treating brewing wastewater proposed by the present invention.

[0037] Figure 7 This is a schematic structural diagram of an auxiliary injection component of an anaerobic membrane bioreactor for brewing wastewater treatment proposed by the present invention.

[0038] Figure 8 This is a structural cross-sectional view of an auxiliary injection component of an anaerobic membrane bioreactor for treating brewing wastewater proposed by the present invention.

[0039] In the figure: support frame 1, sedimentation tank 2, discharge port 3, discharge plate 4, partition 5, slot 6, straight plate 7, round rod 8, sleeve 9, conveying pipe 10, stirring blade 11, receiving screen bucket 12, connecting frame 13, rotating shaft 14, anaerobic membrane assembly 15, threaded rod 16, water spray frame 17, slide rail 18, limit block 19, long rod 20, auxiliary injection assembly 21, top rod 2101, discharge pipe 2102, sleeve 2103, ring Gasket 2104, inner tube 2105, first spring 2106, second spring 2107, block 2108, leak hole 2109, ejector pin 2110, annular plate 2111, one-way valve 2112, piston plate 2113, threaded sleeve 22, nozzle 23, horizontal connecting pipe 24, base 25, first motor 26, water pipe 27, main reaction tank 28, second motor 29, third motor 30, fourth motor 31. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0041] Example 1

[0042] Reference Figure 1-5 An anaerobic membrane bioreactor for treating brewery wastewater comprises a support frame 1, a sedimentation tank 2, a base 25 and a main reaction tank 28. The main reaction tank 28 is connected to the sedimentation tank 2 through a delivery pipe 10. An anaerobic membrane assembly 15 is rotatably arranged in the main reaction tank 28. A second motor 29 is installed outside the main reaction tank 28. The output shaft of the second motor 29 is connected to the anaerobic membrane assembly 15, and one of the ports of the delivery pipe 10 matches the upper end of the anaerobic membrane assembly 15.

[0043] A sludge treatment component is arranged at the bottom of the main reaction tank 28 for longitudinal movement, and includes a sludge treatment component lifting component, a water spray frame 17, a nozzle 23, a transverse connecting pipe 24 and a water pipe 27. The two water spray frames 17 are arranged parallel to each other, and the transverse connecting pipe 24 is horizontally connected between the bottoms of the two water spray frames 17. The interior of the transverse connecting pipe 24 is interconnected with the interior of the water spray frame 17. The nozzle 23 is installed on the opposite side of the water spray frame 17, and the transverse connecting pipe 24 is connected to an external water supply device through a water pipe 27.

[0044] The lifting assembly includes a threaded rod 16, a first motor 26 and a threaded sleeve 22. The first motor 26 is installed at the bottom of the main reaction tank 28. The threaded rod 16 and the output shaft of the first motor 26 are connected to each other. The threaded sleeve 22 is installed on one side of the horizontal connecting pipe 24. The upper end of the threaded rod 16 passes through the threaded sleeve 22 and extends to the top of the threaded sleeve 22. The inner side of the main reaction tank 28 is symmetrically provided with a slide rail 18. A limit block 19 is slidably arranged in the slide rail 18. A long rod 20 is connected between the limit block 19 and the water spray frame 17.

[0045] Wastewater generated during brewing is injected into the main reaction tank 28 from above the main reaction tank 28, and the wastewater entering is in full contact with the anaerobic membrane assembly 15. The anaerobic membrane assembly 15 includes an anaerobic membrane and an external frame for fixing the anaerobic membrane, and the external frame is in contact with the inner wall of the main reaction tank 28. In the main reaction tank 28, the wastewater to be treated first contacts with anaerobic microorganisms, and organic matter is converted into biogas under the action of microorganisms. At the same time, due to the presence of the anaerobic membrane assembly 15, solid matter and organic matter that is not degraded by microorganisms are effectively intercepted, and only treated water is allowed to pass through the membrane surface. The filtration process of the membrane can be maintained by external pumping or applying vacuum to ensure the continuous output of clean water. The treated water is transported away through a pipe pre-opened at the bottom of the main reaction tank 28.

[0046] The anaerobic membrane assembly 15 needs to be cleaned in time after each work is completed, and the impurities adhering to the surface of the anaerobic membrane assembly 15 need to be processed. When cleaning, the main reaction tank 28 needs to be opened, and the anaerobic membrane assembly 15 needs to be taken out before it can be opened, which makes the operation cumbersome.

[0047] To this end, at the bottom of the main reaction tank 28, a water spraying frame 17 capable of reciprocating in the longitudinal direction is used to spray water on both sides of the anaerobic membrane assembly 15 to clean it. The impurities on the surface of the anaerobic membrane assembly 15 are cleaned by the water column sprayed by the nozzle 23. In this process, the first motor 26, the threaded sleeve 22 and the threaded rod 16 together form a screw structure. By controlling the forward and reverse rotation of the first motor 26, the position height of the water spraying frame 17 is indirectly adjusted. When the anaerobic membrane assembly 15 needs to be cleaned, the second motor 29 is controlled to rotate. The anaerobic membrane assembly 15 is driven to rotate clockwise. Due to the vertically arranged threaded rod 16 at the bottom, the anaerobic membrane assembly 15 will not contact with the threaded rod 16 only when the anaerobic membrane assembly 15 rotates clockwise. The anaerobic membrane assembly 15 is rotated to a vertical state and is arranged parallel to the water spray racks 17 on both sides. As the water sprayed from the water spray racks 17 moves up and down, the impurities are cleaned during the contact with the anaerobic membrane assembly 15. The anaerobic membrane assembly 15 is cleaned without disassembling the main reaction tank 28.

[0048] Example 2

[0049] refer to Figure 7-8 The difference between this embodiment and embodiment 1 is that an auxiliary injection assembly 21 is provided at the bottom of the transverse connecting pipe 24 and the bottom of the main reaction tank 28, and the pollutants on the surface of the anaerobic membrane are destroyed by adding reagents. The auxiliary injection assembly 21 includes a push rod 2101, a discharge pipe 2102, a sleeve 2103, an annular gasket 2104, an inner cylinder 2105, a first spring 2106, an ejection assembly, a one-way valve 2112 and a piston plate 2113. The inner cylinder 2105 is fixedly installed at the bottom of the main reaction tank 28, the sleeve 2103 is sleeved on the outside of the inner cylinder 2105, the piston plate 2113 is provided on the upper part of the inner cylinder 2105, and the annular gasket 2104 is provided on the lower end of the outer side of the sleeve 2103. The discharge pipe 2102 is installed on the top of the sleeve 2103, and the discharge pipe 2102 is connected to the inside of the inner cylinder 2105 through the sleeve 2103.

[0050] The push rod 2101 is installed at the lower end of the horizontal connecting tube 24, and the position of the push rod 2101 matches the position of the annular gasket 2104. The outer side of the inner tube 2105 is sleeved with a first spring 2106, and the first spring 2106 is located between the annular gasket 2104 and the bottom of the main reaction tank 28. The one-way valve 2112 is installed in the piston plate 2113, and the inner tube 2105 replenishes the medicine through the pipeline.

[0051] The ejection assembly includes a second spring 2107, a block 2108, a leak hole 2109, an ejector pin 2110 and an annular plate 2111. The second spring 2107 is installed on the inner side of the transverse connecting tube 24. The block 2108 is connected to the bottom of the second spring 2107. The block 2108 is stuck in the leak hole 2109, and the leak hole 2109 is opened on the transverse connecting tube 24. The vertical section of the leak hole 2109 is an isosceles trapezoid with a larger size at the upper end; the annular plate 2111 is set at the channel inside the discharge tube 2102, the ejector pin 2110 is installed on the annular plate 2111, and when the block 2108 moves downward, the ejector pin 2110 pushes the block 2108 away from the leak hole 2109.

[0052] The impurities on the surface of the anaerobic membrane assembly 15 can only be cleaned by flushing with water, but the problem of membrane contamination of the anaerobic membrane assembly 15 cannot be changed. The main causes of membrane contamination include the formation of extracellular polymers EPS, soluble microbial products SMP, and the accumulation of microorganisms on the membrane surface. These pollutants can damage the membrane surface through various mechanisms, including blocking membrane pores, changing the charge and hydrophilicity of the membrane surface, and promoting the formation of a gel layer, causing damage to the membrane.

[0053] To this end, according to the characteristics of the up and down reciprocating motion of the water spray frame 17, an auxiliary injection assembly 21 is arranged at the bottom of the main reaction tank 28. When the water spray frame 17 moves downward, the ejector rod 2101 installed on the transverse connecting pipe 24 presses downward the annular gasket 2104 on the outer side of the sleeve 2103, so that the sleeve 2103 and the inner cylinder 2105 inside it are relatively displaced. During the movement of the sleeve 2103, the inner cylinder 2105 and the piston plate 2113 connected to the top thereof make the piston plate 2113 squeeze the reagent between the inner cylinder 2105 and the sleeve 2103 from the discharge pipe 2102 into the transverse connecting pipe 24. The specific working principle is that when the water spray frame 17 moves downward, the block 2108 on the transverse connecting pipe 24 and the ejector pin 211 on the inner side of the discharge pipe 2102 0 contact each other, and the block 2108 is pushed up to the upper end by the ejector pin 2110, so that a gap appears between the block 2108 and the leak hole 2109, and the reagent is squeezed into the horizontal connecting pipe 24 by pressure to mix with water, thereby reducing the concentration of the reagent and avoiding damage to the anaerobic membrane assembly 15 caused by excessive concentration. At the same time, intermittent squeezing can save the amount of reagent. After the block 2108 and the ejector pin 2110 are no longer in contact with each other, the second spring 2107 resets the block 2108. At the same time, after the ejector pin 2101 is separated from the annular gasket 2104, the first spring 2106 resets the sleeve 2103. The reagent can be an acid or alkaline solution, which is used to destroy the activity of residual microorganisms on the surface of the anaerobic membrane assembly 15 and completely remove these residual microorganisms.

[0054] Example 3, reference Figure 6The difference between this embodiment and Embodiment 1 and Embodiment 2 is that a material receiving screen bucket 12 is provided on one side of the sedimentation tank 2 close to the conveying pipe 10, a notch is provided at the lower end of one side of the material receiving screen bucket 12, a stirring blade 11 is rotatably provided at the notch, and the stirring blade 11 is connected to an external third motor 30 through a transmission shaft.

[0055] A large amount of wheat troughs and yeast residue will remain in the winemaking process. These wheat troughs and yeast residue have good recycling value and can be used as feed after recycling.

[0056] To this end, after the main reaction tank 28 completes the treatment of the wastewater, the valve on the delivery pipe 10 is opened, and the filtered wheat trough and yeast residue are transferred to the receiving screen hopper 12 inside the sedimentation tank 2 through the delivery pipe 10. The wheat trough and yeast residue can be screened out of the corresponding moisture in the receiving screen hopper 12. The stirring blade 11 is driven by the third motor 30 to stir, and the wheat trough and yeast residue can be transferred from the receiving screen hopper 12, thereby preventing blockage problems and achieving a uniform material discharge effect.

[0057] Example 4, reference Figure 6 The difference between this embodiment and embodiment 1, embodiment 2 and embodiment 3 is that a partition plate 5 is obliquely provided at the lower end of one side of the stirring blade 11, a plurality of slots 6 are distributed in an array on the partition plate 5, a discharge plate 4 is installed at the end of the partition plate 5, and a discharge port 3 is provided on the sedimentation tank 2 on one side of the discharge plate 4.

[0058] A connecting frame 13 is symmetrically installed above the partition 5, and the two connecting frames 13 are connected by a rotating shaft 14, and one end of the rotating shaft 14 extends to the outside of the sedimentation tank 2 and is connected to the output shaft of the fourth motor 31. A number of round rods 8 are distributed in a ring array between the two connecting frames 13, and a sleeve 9 is sleeved on the outside of the round rod 8. A straight plate 7 is suspended on the outside of the sleeve 9. When the straight plate 7 rotates to the upper end of the partition 5, the straight plate 7 is deflected at an angle during the process of contacting the partition 5, and a spacing is set between the straight plate 7 and the receiving screen bucket 12 when the straight plate 7 rotates.

[0059] When the fallen wheat trough and yeast residue fall on the upper end of the partition 5, the fourth motor 31 drives the connecting frame 13 and the rotating shaft 14 to rotate. At the same time, the round rod 8 is fixed between the two connecting frames 13, and the straight plate 7 is movably connected to the outer side of the sleeve 9. The upper end of the partition 5 is evenly provided with slots 6. When the straight plate 7 moves to the upper end of the partition 5 and contacts it, the straight plate 7 drives the wheat trough and yeast residue to move in the slots 6 on the upper part of the partition 5 and move along the axial direction of the slots 6. At the same time, accompanied by the contact of the straight plate 7, the wheat trough and yeast residue will be rubbed into granular balls. The rubbed balls will go out of the discharge port along the unloading plate 4 for centralized collection. The wheat trough and yeast residue rubbed into balls can prevent the problem of falling apart during the subsequent transportation process. At the same time, the spherical wheat trough and yeast residue are more convenient to load and prevent the problem of accumulation during transportation.

[0060] The working principle of the device is:

[0061] Wastewater generated during brewing is injected into the main reaction tank 28 from above the main reaction tank 28, and the wastewater entering is in full contact with the anaerobic membrane assembly 15. The anaerobic membrane assembly 15 includes an anaerobic membrane and an external frame for fixing the anaerobic membrane, and the external frame is in contact with the inner wall of the main reaction tank 28. In the main reaction tank 28, the wastewater to be treated first contacts with anaerobic microorganisms, and organic matter is converted into biogas under the action of microorganisms. At the same time, due to the presence of the anaerobic membrane assembly 15, solid matter and organic matter that is not degraded by microorganisms are effectively intercepted, and only treated water is allowed to pass through the membrane surface. The filtration process of the membrane can be maintained by external pumping or applying vacuum to ensure the continuous output of clean water. The treated water is transported away through a pipe pre-opened at the bottom of the main reaction tank 28.

[0062] The anaerobic membrane assembly 15 needs to be cleaned in time after each work is completed, and the impurities adhering to the surface of the anaerobic membrane assembly 15 need to be processed. When cleaning, the main reaction tank 28 needs to be opened, and the anaerobic membrane assembly 15 needs to be taken out before it can be opened, which makes the operation cumbersome.

[0063] To this end, at the bottom of the main reaction tank 28, a water spraying frame 17 capable of reciprocating in the longitudinal direction is used to spray water on both sides of the anaerobic membrane assembly 15 to clean it. The impurities on the surface of the anaerobic membrane assembly 15 are cleaned by the water column sprayed by the nozzle 23. In this process, the first motor 26, the threaded sleeve 22 and the threaded rod 16 together form a screw structure. By controlling the forward and reverse rotation of the first motor 26, the position height of the water spraying frame 17 is indirectly adjusted. When the anaerobic membrane assembly 15 needs to be cleaned, the second motor 29 is controlled to rotate. The anaerobic membrane assembly 15 is driven to rotate clockwise. Due to the vertically arranged threaded rod 16 at the bottom, the anaerobic membrane assembly 15 will not contact with the threaded rod 16 only when the anaerobic membrane assembly 15 rotates clockwise. The anaerobic membrane assembly 15 is rotated to a vertical state and is arranged parallel to the water spray racks 17 on both sides. As the water sprayed from the water spray racks 17 moves up and down, the impurities are cleaned during the contact with the anaerobic membrane assembly 15. The anaerobic membrane assembly 15 is cleaned without disassembling the main reaction tank 28.

[0064] The impurities on the surface of the anaerobic membrane assembly 15 can only be cleaned by flushing with water, but the problem of membrane contamination of the anaerobic membrane assembly 15 cannot be changed. The main causes of membrane contamination include the formation of extracellular polymers EPS, soluble microbial products SMP, and the accumulation of microorganisms on the membrane surface. These pollutants can damage the membrane surface through various mechanisms, including blocking membrane pores, changing the charge and hydrophilicity of the membrane surface, and promoting the formation of a gel layer, causing damage to the membrane.

[0065] To this end, according to the characteristics of the up and down reciprocating motion of the water spray frame 17, an auxiliary injection assembly 21 is arranged at the bottom of the main reaction tank 28. When the water spray frame 17 moves downward, the ejector rod 2101 installed on the transverse connecting pipe 24 presses downward the annular gasket 2104 on the outer side of the sleeve 2103, so that the sleeve 2103 and the inner cylinder 2105 inside it are relatively displaced. During the movement of the sleeve 2103, the inner cylinder 2105 and the piston plate 2113 connected to the top thereof make the piston plate 2113 squeeze the reagent between the inner cylinder 2105 and the sleeve 2103 from the discharge pipe 2102 into the transverse connecting pipe 24. The specific working principle is that when the water spray frame 17 moves downward, the block 2108 on the transverse connecting pipe 24 and the ejector pin 211 on the inner side of the discharge pipe 2102 0 contact each other, and the block 2108 is pushed up to the upper end by the ejector pin 2110, so that a gap appears between the block 2108 and the leak hole 2109, and the reagent is squeezed into the horizontal connecting pipe 24 by pressure to mix with water, thereby reducing the concentration of the reagent and avoiding damage to the anaerobic membrane assembly 15 caused by excessive concentration. At the same time, intermittent squeezing can save the amount of reagent. After the block 2108 and the ejector pin 2110 are no longer in contact with each other, the second spring 2107 resets the block 2108. At the same time, after the ejector pin 2101 is separated from the annular gasket 2104, the first spring 2106 resets the sleeve 2103. The reagent can be an acid or alkaline solution, which is used to destroy the activity of residual microorganisms on the surface of the anaerobic membrane assembly 15 and completely remove these residual microorganisms.

[0066] A large amount of wheat troughs and yeast residue will remain in the winemaking process. These wheat troughs and yeast residue have good recycling value and can be used as feed after recycling.

[0067] To this end, after the main reaction tank 28 completes the treatment of the wastewater, the valve on the delivery pipe 10 is opened, and the filtered wheat trough and yeast residue are transferred to the receiving screen hopper 12 inside the sedimentation tank 2 through the delivery pipe 10. The wheat trough and yeast residue can be screened out of the corresponding moisture in the receiving screen hopper 12. The stirring blade 11 is driven by the third motor 30 to stir, and the wheat trough and yeast residue can be transferred from the receiving screen hopper 12, thereby preventing blockage problems and achieving a uniform material discharge effect.

[0068] When the fallen wheat trough and yeast residue fall on the upper end of the partition 5, the fourth motor 31 drives the connecting frame 13 and the rotating shaft 14 to rotate. At the same time, the round rod 8 is fixed between the two connecting frames 13, and the straight plate 7 is movably connected to the outer side of the sleeve 9. The upper end of the partition 5 is evenly provided with slots 6. When the straight plate 7 moves to the upper end of the partition 5 and contacts it, the straight plate 7 drives the wheat trough and yeast residue to move in the slots 6 on the upper part of the partition 5 and move along the axial direction of the slots 6. At the same time, accompanied by the contact of the straight plate 7, the wheat trough and yeast residue will be rubbed into granular balls. The rubbed balls will go out of the discharge port along the unloading plate 4 for centralized collection. The wheat trough and yeast residue rubbed into balls can prevent the problem of falling apart during the subsequent transportation process. At the same time, the spherical wheat trough and yeast residue are more convenient to load and prevent the problem of accumulation during transportation.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anaerobic membrane bioreactor for treating brewery wastewater, comprising a support frame (1), a sedimentation tank (2), a base (25) and a main reaction tank (28), wherein the main reaction tank (28) is connected to the sedimentation tank (2) via a delivery pipe (10), characterized in that: An anaerobic membrane assembly (15) is rotatably arranged in the main reaction tank (28), a second motor (29) is installed outside the main reaction tank (28), an output shaft of the second motor (29) and the anaerobic membrane assembly (15) are connected to each other, and a port position of the delivery pipe (10) matches the upper end position of the anaerobic membrane assembly (15); A sludge treatment assembly is disposed at the bottom of the main reaction tank (28) in a longitudinally movable manner; The sludge treatment component lifting component, the water spraying frame (17), the spray head (23), the horizontal connecting pipe (24) and the water delivery pipe (27); The two water spray racks (17) are arranged parallel to each other, the transverse connecting pipe (24) is horizontally connected between the bottoms of the two water spray racks (17), the interior of the transverse connecting pipe (24) is connected to the interior of the water spray rack (17), the nozzle (23) is installed on the opposite side of the water spray rack (17), and the transverse connecting pipe (24) is connected to an external water supply device through a water pipe (27).

2. The anaerobic membrane bioreactor for brewery wastewater treatment according to claim 1, characterized in that: The lifting assembly comprises a threaded rod (16), a first motor (26) and a threaded sleeve (22); The first motor (26) is installed at the bottom of the main reaction tank (28), the threaded rod (16) is connected to the output shaft of the first motor (26), the threaded sleeve (22) is installed on one side of the horizontal connecting pipe (24), and the upper end of the threaded rod (16) passes through the threaded sleeve (22) and extends to the top of the threaded sleeve (22).

3. The anaerobic membrane bioreactor for brewery wastewater treatment according to claim 2, characterized in that: A slide rail (18) is symmetrically provided on the inner side of the main reaction tank (28), a limit block (19) is slidably arranged inside the slide rail (18), and a long rod (20) is connected between the limit block (19) and the water spray frame (17).

4. The anaerobic membrane bioreactor for brewery wastewater treatment according to claim 3, characterized in that: An auxiliary drug injection assembly (21) is provided at the bottom of the transverse connecting pipe (24) and the bottom of the main reaction tank (28), and the pollutants on the surface of the anaerobic membrane are destroyed by adding reagents.

5. The anaerobic membrane bioreactor for brewery wastewater treatment according to claim 4, characterized in that: The auxiliary injection assembly (21) comprises a push rod (2101), a discharge pipe (2102), a sleeve (2103), an annular gasket (2104), an inner cylinder (2105), a first spring (2106), an ejection assembly, a one-way valve (2112) and a piston plate (2113); The inner cylinder (2105) is fixedly mounted on the bottom of the main reaction tank (28); the sleeve (2103) is sleeved on the outside of the inner cylinder (2105); a piston plate (2113) is arranged on the upper part of the inner cylinder (2105); an annular gasket (2104) is arranged on the lower end of the outer side of the sleeve (2103); the discharge pipe (2102) is mounted on the top of the sleeve (2103); and the discharge pipe (2102) is connected to the inside of the inner cylinder (2105) through the sleeve (2103); The push rod (2101) is installed at the lower end of the horizontal connecting pipe (24), and the position of the push rod (2101) matches the position of the annular gasket (2104); The outer side of the inner cylinder (2105) is sleeved with a first spring (2106), and the first spring (2106) is located between the annular gasket (2104) and the bottom of the main reaction tank (28); The one-way valve (2112) is installed in the piston plate (2113), and the inner cylinder (2105) is filled with medicine through a pipeline.

6. The anaerobic membrane bioreactor for brewery wastewater treatment according to claim 5, characterized in that: The ejection assembly comprises a second spring (2107), a clamping block (2108), a leak hole (2109), an ejector pin (2110) and an annular plate (2111); The second spring (2107) is installed on the inner side of the transverse connecting tube (24), the clamping block (2108) is connected to the bottom of the second spring (2107), the clamping block (2108) is clamped in the leakage hole (2109), and the leakage hole (2109) is provided on the transverse connecting tube (24), and the vertical section of the leakage hole (2109) is arranged in an isosceles trapezoidal shape with a larger size at the upper end; The annular plate (2111) is arranged at the channel inside the discharge pipe (2102), and the ejector pin (2110) is installed on the annular plate (2111). When the block (2108) moves downward, the ejector pin (2110) pushes the block (2108) away from the leakage hole (2109).

7. The anaerobic membrane bioreactor for brewery wastewater treatment according to any one of claims 1 or 6, characterized in that: A material receiving sieve bucket (12) is provided on one side of the sedimentation tank (2) close to the conveying pipe (10), a notch is provided at the lower end of one side of the material receiving sieve bucket (12), a stirring blade (11) is rotatably provided at the notch, and the stirring blade (11) is connected to an external third motor (30) via a transmission shaft.

8. The anaerobic membrane bioreactor for brewery wastewater treatment according to claim 7, characterized in that: A partition (5) is obliquely arranged at the lower end of one side of the stirring blade (11), and a plurality of slots (6) are distributed in an array on the partition (5). A discharge plate (4) is installed at the end of the partition (5), and a discharge port (3) is arranged on the sedimentation tank (2) on one side of the discharge plate (4).

9. The anaerobic membrane bioreactor for brewery wastewater treatment according to claim 8, characterized in that: A connecting frame (13) is symmetrically installed above the partition (5), and the two connecting frames (13) are connected by a rotating shaft (14), and one end of the rotating shaft (14) extends to the outside of the precipitation tank (2) and is connected to the output shaft of the fourth motor (31); A plurality of round rods (8) are distributed in a ring array between the two connecting frames (13), a sleeve (9) is sleeved on the outside of the round rod (8), and a straight plate (7) is suspended on the outside of the sleeve (9).

10. The anaerobic membrane bioreactor for brewery wastewater treatment according to claim 9, characterized in that: When the straight plate (7) rotates to the upper end of the partition (5), the straight plate (7) deflects at an angle during the process of contacting the partition (5), and a distance is set between the straight plate (7) and the receiving screen bucket (12) when the straight plate (7) rotates.

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