Reverse osmosis equipment based on MBR (Membrane Bioreactor) process

Abstract

The utility model is applicable to the field of sewage treatment, and provides reverse osmosis equipment based on an MBR (Membrane Biological Reactor) process, which comprises a sewage pool, two vertical transposition guide rails are arranged on the inner side wall of the sewage pool, a transposition lifting assembly is further arranged in the middle of filter membrane frames, and the two filter membrane frames are connected to a bunched pump assembly; a sludge cleaning mechanism is arranged below the sewage pool; and a flushing assembly is also arranged in the middle of the filter membrane frame. When the device is used, water liquid to be treated is poured into a sewage pool, the stepping motor drives the two racks to operate through the central gear, the operation directions of the two racks are opposite, and then the two filter membrane frames and the ultrafiltration membrane assemblies in the filter membrane frames can be alternately sunk into sewage for filtering operation; the jet nozzles on the side wall of the steel pipe of the support frame jet high-pressure water flow to flush sludge on the ultrafiltration membrane assembly, and flushing liquid mixed with the sludge falls into a sewage pool again, so that the function of automatic cleaning is realized.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment, and in particular relates to a reverse osmosis device based on an MBR process. Background Art

[0002] With the development of industrial technology, modern sewage treatment technology has become more and more perfect. The sewage generated by chemical plants or farms needs to be filtered before it can be recycled. The MBR sewage treatment process is to insert the ultrafiltration membrane assembly into the sewage and suck out the clean water through the ultrafiltration membrane assembly by negative pressure. However, the previous MBR sewage treatment process still has the following shortcomings;

[0003] In the past, after ultrafiltration membrane components have been used in sewage for a certain period of time, the surface of the ultrafiltration membrane components will be covered with sludge. When the sludge accumulates to a certain extent, it will completely block the water holes of the ultrafiltration membrane components. This requires regular flushing of the ultrafiltration membrane components. Flushing of ultrafiltration membrane components in the past was more troublesome. Secondly, the sludge generated after sewage treatment is difficult to transport and process, and the smelly sludge is prone to flow and leak during the cleaning and transportation process. Summary of the invention

[0004] The utility model aims to provide a reverse osmosis device based on MBR process in view of the deficiencies in the prior art. When the device is in use, the water to be treated is poured into the sewage pool, and the stepper motor drives two racks to run through the central gear. The running directions of the two racks are opposite, so that the two filter membrane frames and the ultrafiltration membrane components therein can be sunk into the sewage in turn for filtering operation. During the lifting and lowering process of the filter membrane frames, the flushing pump extracts the cleaning liquid and pushes it into the steel pipe of the support frame. The injection nozzle on the side wall of the steel pipe of the support frame sprays a high-pressure water flow to start flushing the sludge on the ultrafiltration membrane component. The flushing liquid mixed with the sludge falls back into the sewage pool, thereby achieving the effect of automatically cleaning the ultrafiltration membrane component, thereby solving the problems mentioned in the background technology.

[0005] To solve the above problems, the utility model provides the following technical solutions: a reverse osmosis device based on the MBR process, comprising a sewage pool, wherein two upright transposition guide rails are arranged on the inner wall of the sewage pool, and transposition sliders are slidably installed on the transposition guide rails, and two filter membrane frames are also arranged on the inner side of the transposition guide rails, and the filter membrane frames are respectively fixed on the two transposition sliders, and a transposition lifting assembly is also arranged in the middle of the filter membrane frame, and the two filter membrane frames are connected to a cluster pump assembly; a sludge cleaning mechanism is arranged below the sewage pool; a flushing assembly is also arranged in the middle of the filter membrane frame, and the flushing assembly comprises two support frame steel pipes, and the two support frame steel pipes are fixedly connected to the outer wall of the sewage pool through an inclined rod, and a jet nozzle in a straight line array is arranged on the side wall of the support frame steel pipe, and the water spraying direction of the jet nozzle is inclined downward, and the jet nozzle is connected to the flushing liquid supply assembly.

[0006] Furthermore, the transposition lifting assembly includes a rack on the side wall of the filter membrane frame, a stepper motor is arranged on the outer wall of the sewage pool, a central gear is installed at the output end of the stepper motor, and the central gear is respectively meshed with the two racks.

[0007] Furthermore, the flushing liquid supply assembly includes a flushing liquid tank and a flushing pump on the side wall of the sewage pool, the input pipe of the flushing pump is connected to the inside of the flushing liquid tank, and two forked water supply pipes are provided at the output end of the flushing pump, and the forked water supply pipes are respectively connected to the inside of the support frame steel pipe.

[0008] Furthermore, the cluster pump assembly includes a cluster transverse tube at the top of the filter membrane frame, the ends of the wire tubes in the filter membrane frame extend into the interior of the cluster transverse tube, a water suction pump is arranged on the outer wall of the sewage pool, the interior of the cluster transverse tube is connected to a collecting suction pipe, the other end of the collecting suction pipe is connected to the input end of the water suction pump, and the output pipe of the water suction pump is connected to the clean water pool.

[0009] Furthermore, the sludge cleaning mechanism includes a sludge box below the sewage pool, which is made of two-millimeter sheet metal stamping. The sludge box is fixedly connected to the bottom surface of the sewage pool through four rubber columns. A sludge suction component is arranged on the side wall of the sewage pool, and an evaporation heating component is arranged at the bottom of the sludge box.

[0010] Furthermore, the sludge suction assembly includes a sludge pump on the outer wall of the sewage pool, and a suction steel pipe is provided at the input end of the sludge pump. The end of the suction steel pipe extends into the interior of the sewage pool and is two centimeters away from the bottom surface of the interior of the sewage pool.

[0011] Furthermore, the evaporation heating assembly includes a heating wire inside the sludge box, and an interlayer copper plate is also provided inside the sludge box. The heating wire is located in the gap between the interlayer copper plate and the sludge box, and the edge of the interlayer copper plate and the inner wall of the sludge box are bonded by sealant.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] Firstly, when the device is in use, the water to be treated is poured into the sewage pool, and the stepper motor drives the two racks to run through the central gear. The running directions of the two racks are opposite, so that the two filter membrane frames and the ultrafiltration membrane components inside them can be sunk into the sewage in turn for filtering operations. During the lifting process of the filter membrane frames, the flushing pump draws the cleaning liquid and pushes it into the steel pipe of the support frame. The injection nozzle on the side wall of the steel pipe of the support frame sprays out a high-pressure water flow to start flushing the sludge on the ultrafiltration membrane component. The flushing liquid mixed with the sludge falls back into the sewage pool, achieving the effect of automatically cleaning the ultrafiltration membrane component.

[0014] Secondly, when the sludge deposited at the bottom of the sewage pool reaches a certain thickness, the sludge pump starts to extract the sludge and push it into the sludge box. The electric heating wire inside the sludge box starts to heat the sludge until all the water in the sludge evaporates. The staff uses sticks and other tools to knock on the sludge box, and the dry sludge in the sludge box will break and fall off. The dry sludge is easier to transport and handle and will not flow and spill. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front view of the utility model.

[0016] Figure 2 It is a schematic diagram of the side view of the utility model.

[0017] Figure 3 It is a schematic diagram of the support frame of the utility model.

[0018] Figure 4 It is a schematic diagram of a cross-section of the utility model.

[0019] Figure 5 It is a schematic diagram of the stepping motor of the utility model.

[0020] Description of reference numerals:

[0021] Sewage tank 1, flushing pump 2, support frame steel pipe 201, tilting rod 202, injection nozzle 203, forked water supply pipe 204, transposition guide rail 3, transposition slider 301, filter membrane frame 4, rack 401, clustering cross pipe 402, sludge pump 5, sludge box 6, rubber column 601, stepping motor 7, center gear 701, water suction pump 8, collecting suction pipe 801. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] The utility model provides a reverse osmosis device based on MBR process, such as Figure 1-5 As shown, it includes a sewage pool 1, and two upright transposition guide rails 3 are arranged on the inner side wall of the sewage pool 1, and a transposition slider 301 is slidably installed on the transposition guide rail 3, and two filter membrane frames 4 are also arranged on the inner side of the transposition guide rail 3, and the filter membrane frames 4 are respectively fixed on the two transposition sliders 301, and a transposition lifting assembly is also arranged in the middle of the filter membrane frame 4, and the two filter membrane frames 4 are connected to the cluster pump assembly; a sludge cleaning mechanism is arranged below the sewage pool 1; a flushing assembly is also arranged in the middle of the filter membrane frame 4, and the flushing assembly includes two support frame steel pipes 201, and the two support frame steel pipes 201 are connected to the sewage pool 1 through the tilting rod 202 and the sewage The outer wall of the pool 1 is fixedly connected, and a jet nozzle 203 in a straight line array is arranged on the side wall of the support frame steel pipe 201. The water spraying direction of the jet nozzle 203 is inclined downward. The jet nozzle 203 is connected to the flushing liquid supply component to pour the water to be treated into the inside. The two filter membrane frames 4 and the ultrafiltration membrane components therein can be sunk into the sewage in turn for filtering operations. During the lifting and lowering process of the filter membrane frame 4, the flushing liquid supply component supplies liquid to all the jet nozzles 203 and sprays high-pressure water to start flushing the sludge on the ultrafiltration membrane components. The flushing liquid mixed with the sludge falls back into the sewage pool 1, achieving the effect of automatically cleaning the ultrafiltration membrane components.

[0025] The transposition and lifting assembly includes a rack 401 on the side wall of the filter membrane frame 4, and a stepper motor 7 is arranged on the outer wall of the sewage pool 1. A central gear 701 is installed at the output end of the stepper motor 7. The central gear 701 is respectively meshed with the two racks 401. The stepper motor 7 drives the two racks 401 to run through the central gear 701. The running directions of the two racks 401 are opposite, and the two filter membrane frames 4 are synchronously advanced with the racks 401.

[0026] The flushing liquid supply assembly includes a flushing liquid tank and a flushing pump 2 on the side wall of the sewage pool 1. The input pipe of the flushing pump 2 is connected to the inside of the flushing liquid tank. The output end of the flushing pump 2 is provided with two forked water supply pipes 204. The forked water supply pipes 204 are respectively connected to the inside of the support frame steel pipe 201. The flushing pump 2 draws cleaning liquid and pushes it into the inside of the support frame steel pipe 201. The injection nozzle 203 on the side wall of the support frame steel pipe 201 starts to spray cleaning liquid.

[0027] The cluster pump assembly includes a cluster transverse tube 402 at the top of the filter membrane frame 4, and the ends of the wire tubes in the filter membrane frame 4 all extend to the interior of the cluster transverse tube 402. A water suction pump 8 is arranged on the outer wall of the sewage pool 1. The interior of the cluster transverse tube 402 is connected to a collecting suction pipe 801, and the other end of the collecting suction pipe 801 is connected to the input end of the water suction pump 8. The output pipe of the water suction pump 8 is connected to the clean water pool. The water suction pump 8 starts to pump water through the collecting suction pipe 801 and the cluster transverse tube 402, and the ultrafiltration membrane assembly below the cluster transverse tube 402 starts to form negative pressure to suck up the clean water.

[0028] The sludge cleaning mechanism includes a sludge box 6 below the sewage pool 1. The sludge box 6 is made of two-millimeter sheet metal stamping. The sludge box 6 is fixedly connected to the bottom surface of the sewage pool 1 through four rubber columns 601. A sludge suction component is provided on the side wall of the sewage pool 1, and an evaporation heating component is provided at the bottom of the sludge box 6. The sludge suction component sends the sludge generated in the sewage pool 1 into the sludge box 6. The sludge will form a thin layer in the sludge box 6. The evaporation heating component starts to heat the sludge box 6 until all the water evaporates. The staff uses tools such as sticks to knock on the sludge box 6, and the dry mud in the sludge box 6 will break and fall off. The dry sludge is easier to transport and handle and will not flow and spill.

[0029] The sludge suction assembly includes a sludge pump 5 on the outer wall of the sewage pool 1. A suction steel pipe is provided at the input end of the sludge pump 5. The end of the suction steel pipe extends into the interior of the sewage pool 1 and is two centimeters away from the bottom surface of the interior of the sewage pool 1. When the sludge deposited at the bottom of the sewage pool 1 reaches a certain thickness, the sludge pump 2 starts to extract the sludge and push it into the sludge box.

[0030] The evaporation heating component includes an electric heating wire inside the sludge box 6. An interlayer copper plate is also provided inside the sludge box 6. The electric heating wire is in the gap between the interlayer copper plate and the sludge box 6. The edge of the interlayer copper plate and the inner wall of the sludge box 6 are adhered by a sealant. The electric heating wire is energized to heat the copper plate. The copper plate has better thermal conductivity, and then the sludge layer on the copper plate will quickly conduct heat to evaporate water.

[0031] Working principle: Pour the water to be treated into the interior, and the two filter membrane frames 4 and the ultrafiltration membrane components inside them can be sunk into the sewage in turn for filtering. During the lifting process of the filter membrane frame 4, the flushing liquid supply assembly supplies liquid to all the injection nozzles 203 and sprays high-pressure water to start flushing the sludge on the ultrafiltration membrane components. The flushing liquid mixed with the sludge falls back into the sewage pool 1, achieving the effect of automatically cleaning the ultrafiltration membrane components. The stepper motor 7 drives the two racks 401 to run through the central gear 701. The running directions of the two racks 401 are opposite. The two filter membrane frames 4 are synchronously advanced with the racks 401. The flushing pump 2 extracts the cleaning liquid and pushes it into the support frame steel pipe 201. The injection nozzles 203 on the side wall of the support frame steel pipe 201 start to spray the cleaning liquid. The water pump 8 starts to pump water through the collecting suction pipe 801 and the bundled transverse pipe 402. The ultrafiltration membrane component under the bundled transverse pipe 402 starts to form a negative pressure to suck up the clean water. The sludge suction component sends the sludge generated in the sewage pool 1 to the sludge box 6. The sludge will form a thin layer in the sludge box 6. The evaporation heating component starts to heat the sludge box 6 until all the water evaporates. The staff uses sticks and other tools to knock on the sludge box 6, and the dry sludge in the sludge box 6 will break and fall off. The dry sludge is easier to transport and handle and will not flow and spill. The sludge deposited at the bottom of the sewage pool 1 reaches a certain thickness. The sludge pump 2 starts to extract the sludge and push it into the sludge box. The heating wire is energized to heat the copper plate. The copper plate has better thermal conductivity, and then the sludge layer on the copper plate will quickly conduct heat to evaporate water.

[0032] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0033] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0034] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0035] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A reverse osmosis device based on MBR process, characterized by: It comprises a sewage pool (1), wherein two vertical transposition guide rails (3) are arranged on the inner side wall of the sewage pool (1), a transposition slider (301) is slidably mounted on the transposition guide rail (3), two filter membrane frames (4) are also arranged on the inner side of the transposition guide rail (3), the filter membrane frames (4) are respectively fixed on the two transposition sliders (301), a transposition lifting assembly is also arranged in the middle of the filter membrane frame (4), and the two filter membrane frames (4) are connected to a cluster pump assembly; A sludge cleaning mechanism is provided below the sewage pool (1); A flushing assembly is also provided in the middle of the membrane frame (4), the flushing assembly comprising two support frame steel pipes (201), the two support frame steel pipes (201) being fixedly connected to the outer wall of the sewage pool (1) via an inclined rod (202), a straight-line array of spray nozzles (203) being provided on the side walls of the support frame steel pipes (201), the spraying direction of the spray nozzles (203) being inclined downward, and the spray nozzles (203) being connected to the flushing liquid supply assembly.

2. A reverse osmosis device based on MBR process according to claim 1, characterized in that: The transposition lifting assembly comprises a rack (401) on the side wall of the filter membrane frame (4); a stepper motor (7) is arranged on the outer wall of the sewage pool (1); a central gear (701) is installed at the output end of the stepper motor (7); and the central gear (701) is respectively meshed with the two racks (401).

3. A reverse osmosis device based on MBR process according to claim 1, characterized in that: The flushing liquid supply assembly comprises a flushing liquid tank and a flushing pump (2) on the side wall of the sewage tank (1); an input pipe of the flushing pump (2) is connected to the inside of the flushing liquid tank; and two bifurcated water supply pipes (204) are provided at the output end of the flushing pump (2); the bifurcated water supply pipes (204) are respectively connected to the inside of the support frame steel pipe (201).

4. A reverse osmosis device based on MBR process according to claim 1, characterized in that: The cluster pump assembly comprises a cluster transverse tube (402) at the top of the filter membrane frame (4), the ends of the wire tubes in the filter membrane frame (4) all extend into the interior of the cluster transverse tube (402), a water suction pump (8) is arranged on the outer wall of the sewage pool (1), the interior of the cluster transverse tube (402) is connected to a collecting suction pipe (801), the other end of the collecting suction pipe (801) is connected to the input end of the water suction pump (8), and the output pipe of the water suction pump (8) is connected to the clean water pool.

5. A reverse osmosis device based on MBR process according to claim 1, characterized in that: The sludge cleaning mechanism comprises a sludge box (6) below the sewage pool (1); the sludge box (6) is made by stamping a two-millimeter sheet metal; the sludge box (6) is fixedly connected to the bottom surface of the sewage pool (1) via four rubber columns (601); a sludge suction component is arranged on the side wall of the sewage pool (1); and an evaporation heating component is arranged at the bottom of the sludge box (6).

6. A reverse osmosis device based on MBR process according to claim 5, characterized in that: The sludge suction assembly comprises a sludge pump (5) on the outer wall of the sewage pool (1), and a suction steel pipe is arranged at the input end of the sludge pump (5), the end of the suction steel pipe extends into the interior of the sewage pool (1) and is two centimeters away from the bottom surface of the interior of the sewage pool (1).

7. A reverse osmosis device based on MBR process according to claim 5, characterized in that: The evaporation heating component comprises an electric heating wire inside the sludge box (6), and an interlayer copper plate is also provided inside the sludge box (6). The electric heating wire is located in a gap between the interlayer copper plate and the sludge box (6), and the edge of the interlayer copper plate and the inner wall of the sludge box (6) are bonded together by a sealant.

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