CN111467964B - Sewage treatment ultrafiltration device - Google Patents

Sewage treatment ultrafiltration device Download PDF

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Publication number
CN111467964B
CN111467964B CN202010272058.7A CN202010272058A CN111467964B CN 111467964 B CN111467964 B CN 111467964B CN 202010272058 A CN202010272058 A CN 202010272058A CN 111467964 B CN111467964 B CN 111467964B
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CN
China
Prior art keywords
ultrafiltration
upper cover
box body
frame
supporting frame
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Application number
CN202010272058.7A
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Chinese (zh)
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CN111467964A (en
Inventor
蒋春燕
沈丹萍
蒋璐琦
陈勖涵
洪鹤立
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Jiangsu Yuantaiheng Environmental Engineering Co ltd
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Jiangsu Yuantaiheng Environmental Engineering Co ltd
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Priority to CN202010272058.7A priority Critical patent/CN111467964B/en
Publication of CN111467964A publication Critical patent/CN111467964A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/145Ultrafiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/18Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/20Accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02Membrane cleaning or sterilisation ; Membrane regeneration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/04Backflushing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16Use of chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations

Abstract

The invention discloses a sewage treatment ultrafiltration device, which relates to the field of sewage treatment and comprises a box body and an upper cover, wherein an annular supporting plate is fixedly arranged below a top opening of the box body, a rotary supporting frame is supported on the annular supporting plate, one side of the rotary supporting frame is rotatably connected with the inner wall of the top opening of the box body through a rotating shaft, an ultrafiltration mechanism is detachably arranged on the rotary supporting frame, a cleaning mechanism is arranged in the middle of the upper cover, and the cleaning mechanism is close to the ultrafiltration mechanism to clean the ultrafiltration mechanism. The ultrafiltration membrane cleaning device is novel in design, simple in structure and convenient and fast to use, the ultrafiltration membrane can be conveniently replaced and cleaned through the detachable ultrafiltration mechanism and the rotary supporting frame, the ultrafiltration membrane can be directly cleaned by the cleaning mechanism and the backwashing pipeline in the using process of the device, the working effect of the ultrafiltration membrane is ensured, and the service life of the ultrafiltration membrane is prolonged.

Description

Sewage treatment ultrafiltration device
Technical Field
The invention relates to the field of sewage treatment, in particular to a sewage treatment ultrafiltration device.
Background
The ultrafiltration device is an advanced membrane separation technology, and a solvent and various small solutes contained in a feed liquid permeate a filter membrane from a high-pressure feed liquid side to a low-pressure side so as to obtain a permeate liquid or ultrafiltrate, wherein the micropores of the ultrafiltration membrane can reach below 0.01 micrometer (one hundred thousand millimeters), so that particles, colloids and bacteria in water can be effectively removed.
The existing ultrafiltration device has the following defects: 1, the ultrafiltration membrane inside is inconvenient to replace, and after long-term filtration, micro particles, colloid and bacteria in the water body can block micropores on the ultrafiltration membrane, thereby affecting the water purification efficiency; 2 the milipore filter live time is short, leads to sewage treatment cost higher, and traditional ultrafiltration device can't clean the milipore filter basically, and after long-time the use, the filtration side adsorption of milipore filter is a large amount of particle impurity, plugs up the ultrafiltration hole, has reduced the filter effect of milipore filter, leads to its work efficiency to reduce, can't reach fine purifying effect. Therefore, the ultrafiltration device for sewage treatment is designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects that the internal ultrafiltration membrane is thin and is inconvenient to replace and the service time of the ultrafiltration membrane is short in the prior art, and provides an ultrafiltration device for sewage treatment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a sewage treatment ultrafiltration device comprises a box body and an upper cover, wherein the upper cover is rotatably installed at an opening at the top of the box body through a hinge, a sewage inlet is fixedly formed in the upper cover, a purified water outlet is fixedly formed in the bottom of the box body, an annular supporting plate is fixedly arranged below an opening at the top of the box body, a rotating supporting frame is supported on the annular supporting plate, one side of the rotating supporting frame is rotatably connected with the inner wall of the opening at the top of the box body through a rotating shaft, an ultrafiltration mechanism is detachably installed on the rotating supporting frame, a cleaning mechanism is installed in the middle of the upper cover, and the cleaning mechanism is close to the ultrafiltration mechanism to clean the ultrafiltration mechanism;
the box body and the upper cover are of cylindrical hollow structures, the rotary supporting frame comprises a circular supporting frame, a circular supporting plate and inserting columns, one side of the supporting frame is rotatably connected with the inner wall of the opening at the top of the box body through a rotating shaft, a circular collecting tank is arranged on the upper side of the supporting frame, the supporting plate is fixedly arranged on the lower side edge of the circular inner wall of the supporting frame, and the inserting columns are fixedly arranged on the supporting plate at equal intervals;
the ultrafiltration mechanism comprises a circular fixing frame, a support screen frame protruding upwards to form a conical structure and an ultrafiltration membrane, the inner diameters of the fixing frame and the support frame are matched, fixing holes corresponding to the inserting columns one by one are formed in the lower side of the fixing frame at equal intervals, the support screen frame is fixedly arranged on the upper side of the fixing frame, and the ultrafiltration membrane is fixedly attached to the support screen frame;
clean mechanism includes driving motor, rotation axis and clean pole of scraping, driving motor passes through bearing fixed mounting at the middle part of upper cover and the one end of drive shaft fixed connection rotation axis, the other end of rotation axis extends to upper cover towards box pivoted one side and fixed mounting has at least one clean pole of scraping, the clean pole laminating of scraping is on the upper surface of milipore filter.
Preferably, still include medicine mechanism, medicine mechanism is including spilling the pencil and adding the medicine box, it is fixed in upper cover one side towards the box pivoted to spill the pencil to be the annular, add the fixed outside that sets up in the upper cover of medicine box, and add the medicine box and pass through the pipeline and spill the pencil and be connected.
Preferably, the medicine adding box is provided with a medicine adding opening and a water inlet pipe, and the medicine adding box is internally provided with a stirring device and a pressure pump.
Preferably, the device also comprises a back washing pipeline, the back washing pipeline is fixedly arranged below the supporting plate in the inner cavity of the box body through a support, a plurality of water spraying holes are formed in the back washing pipeline towards the ultrafiltration mechanism, and the back washing pipeline is connected with the high-pressure water pipe.
The invention has the beneficial effects that:
1. according to the invention, the box body and the upper cover can be opened, the ultrafiltration mechanism is detachably arranged on the rotary supporting frame, the replacement of the ultrafiltration mechanism is greatly facilitated, the rotary supporting frame can drive the ultrafiltration mechanism to rotate to an inclined angle, the ultrafiltration membrane can be conveniently cleaned on the basis of opening the upper cover, and the service life of the ultrafiltration membrane is prolonged.
2. The invention is provided with the cleaning mechanism and the back washing pipeline, when the upper cover is not required to be opened, the back washing pipeline can carry out back washing on the ultrafiltration mechanism, the cleaning mechanism can filter impurities on the filtering side of the ultrafiltration membrane, the working effect of the ultrafiltration membrane is ensured, and the service life of the ultrafiltration membrane is prolonged.
The ultrafiltration membrane cleaning device is novel in design, simple in structure and convenient and fast to use, the ultrafiltration membrane can be conveniently replaced and cleaned through the detachable ultrafiltration mechanism and the rotary supporting frame, the ultrafiltration membrane can be directly cleaned by the cleaning mechanism and the backwashing pipeline in the using process of the device, the working effect of the ultrafiltration membrane is ensured, and the service life of the ultrafiltration membrane is prolonged.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic view of an expanded state according to a first embodiment of the present invention;
FIG. 3 is a schematic structural view of a rotary support frame and an ultrafiltration mechanism according to a first embodiment of the present invention;
FIG. 4 is a bottom view of an ultrafiltration mechanism according to a first embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of an upper cover according to a first embodiment of the present invention;
FIG. 6 is a schematic structural diagram according to a second embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of the upper cover according to the second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-5, a sewage treatment ultrafiltration device, including box 1 and upper cover 2, upper cover 2 rotates through the hinge and installs in the opening part at box 1 top, upper cover 2 is last to be fixed to be provided with sewage inlet 3, the fixed purified water export 4 that is provided with in bottom of box 1, box 1 is located the fixed annular backup pad 5 that is provided with in below of its open end at top, the last support of annular backup pad 5 has rotation braced frame 6, rotate and be connected through rotating between pivot and the box 1 open-top inner wall in one side of braced frame 6, rotate and to install ultrafiltration mechanism 7 on the braced frame 6 detachablely, the mid-mounting of upper cover 2 has clean mechanism 8, and clean mechanism 8 is pressed close to ultrafiltration mechanism 7 and is cleaned it.
According to the invention, the sealing rubber strips are arranged at the joint of the upper cover 2 and the box body 1, between the rotary supporting frame 6 and the box body 1, and between the ultrafiltration mechanism 7 and the rotary supporting frame 6, so that the sealing performance is improved, sewage enters a cavity formed by the box body 1 and the upper cover 2 through the sewage inlet 3, the ultrafiltration mechanism 7 filters the sewage, the cleaning mechanism 8 cleans the surface of the ultrafiltration mechanism 7, so that impurities are prevented from blocking ultrafiltration holes, the filtering effect is improved, the box body 1 and the upper cover 2 can be opened, the rotary supporting frame 6 can drive the ultrafiltration mechanism 7 to rotate to form an inclined angle, and the ultrafiltration mechanism 7 can be cleaned conveniently on the basis of opening the upper cover 2.
Still include medicine mechanism, medicine mechanism is including spilling medicine pipe 9 and adding medicine box 10, spills medicine pipe 9 and is the annular fixed in upper cover 2 towards box 1 pivoted one side, adds the fixed outside that sets up in upper cover 2 of medicine box 10, and adds medicine box 10 and be connected with spilling medicine pipe 9 through the pipeline, is provided with on the medicine box 10 and adds medicine mouth and inlet tube, adds that medicine box 10 embeds has agitating unit and force (forcing) pump.
Purifying chemical agents are added into a medicine adding box 10 of the medicine adding mechanism, and the purifying chemical agents are sprinkled into sewage through a medicine sprinkling pipe 9, so that the filtering and purifying effects are improved.
Box 1 and upper cover 2 are cylindrical hollow structure, rotate the 6 frames of carriage including being annular carriage 61, the annular extension board 63 of circle and inserting post 64, and carriage 61 one side is connected through rotating between pivot and the 1 open-top's of box inner wall, and annular collecting vat 62 of circle has been seted up to carriage 61's upside, and extension board 63 is fixed to be set up in carriage 61's annular inner wall side down, and the equidistant fixed post 64 of inserting that is provided with on extension board 63.
The ultrafiltration mechanism 7 comprises a circular fixing frame 71, a support screen frame 74 protruding upwards to form a conical structure, and an ultrafiltration membrane 73, wherein the fixing frame 71 is matched with the inner diameter of the support frame 61, fixing holes 72 corresponding to the inserting columns 64 one by one are formed in the lower side of the fixing frame 71 at equal intervals, the support screen frame 74 is fixedly arranged on the upper side of the fixing frame 71, and the ultrafiltration membrane 73 is fixedly attached to the support screen frame 74.
The cleaning mechanism 8 comprises a driving motor 81, a rotating shaft 82 and a cleaning scraping rod 83, the driving motor 81 is fixedly mounted in the middle of the upper cover 2 through a bearing, the driving shaft is fixedly connected with one end of the rotating shaft 82, the other end of the rotating shaft 82 extends to one side, facing the box body 1, of the upper cover 2 and is fixedly provided with at least one cleaning scraping rod 83, and the cleaning scraping rod 83 is attached to the upper surface of the ultrafiltration membrane 73.
In the using process of the invention, sewage is positioned above the ultrafiltration mechanism 7, the sewage is filtered and purified by the ultrafiltration membrane 73, when the driving motor 81 is started, the rotating shaft 82 and the cleaning scraping rod 83 are driven to rotate, because the cleaning scraping rod 83 is attached to the surface of the ultrafiltration membrane 73, when the cleaning scraping rod 83 rotates, particle impurities attached to the surface of the ultrafiltration membrane 73 can be scraped off, the scraped impurities slide to the periphery along the tapered structure of the supporting screen frame 74 and finally slide to the collecting tank 62, the surface of the ultrafiltration membrane 73 is kept clean, the filtering effect is improved, the upper cover 2 is opened periodically, so that the ultrafiltration mechanism 7 rotates to form an inclined angle along with the rotary supporting frame 6, the impurities in the collecting tank 62 can be conveniently poured out, meanwhile, the ultrafiltration membrane 73 can be replaced or cleaned, when the ultrafiltration mechanism 7 needs to be replaced, the ultrafiltration membrane is only required to be pulled out upwards, and the fixing hole 72 of the new ultrafiltration mechanism 7 is aligned with the insertion column 64 on the rotary support frame 6 to be pressed and fixed to complete replacement.
Example two
Referring to fig. 6-7, the difference between this embodiment and the first embodiment lies in that the implementation modes of the rotary supporting frame 6, the ultrafiltration mechanism 7 and the cleaning mechanism are different, in this embodiment, the box body 1 and the upper cover 2 are rectangular hollow structures, the rotary supporting frame 3 includes a supporting frame 61 in a rectangular structure, a supporting plate 63 in a rectangular frame structure and an inserting column 64, one side of the supporting frame 61 is rotatably connected with the inner wall of the top opening of the box body 1 through a rotating shaft, a rectangular collecting groove 64 is formed in the upper side of the supporting frame 61, the supporting plate 63 is fixedly arranged on the lower side of the inner wall of the supporting frame 61, and the inserting column 64 is fixedly arranged on the supporting plate 63 at.
The ultrafiltration mechanism 7 comprises a fixing frame 71 with a rectangular frame structure, a supporting screen frame 74 with a horizontal structure and an ultrafiltration membrane 73, wherein the fixing frame 71 is installed in the supporting frame 61, fixing holes 72 which correspond to the inserting columns 64 one by one are formed in the lower side of the fixing frame 71 at equal intervals, the supporting screen frame 74 is fixedly arranged on the upper side of the fixing frame 71, and the ultrafiltration membrane 73 is fixedly attached to the supporting screen frame 74.
The cleaning mechanism 8 comprises a driving motor 81, a rotating shaft 82, elastic telescopic rods 85 and a cleaning scraping rod 83, the driving motor 81 is fixedly installed on the side wall of the upper cover 2 through a bearing, the driving shaft is fixedly connected with one end of the rotating shaft 82, the other end of the rotating shaft 82 extends to the other side of the upper cover 2 and is rotatably connected with the other side of the upper cover, at least two elastic telescopic rods 85 are fixedly installed on the rotating shaft 82, the cleaning scraping rod 83 is fixedly installed between the two elastic telescopic rods 83, and the cleaning scraping rod 83 is attached to the upper surface of the ultrafiltration membrane 73.
This embodiment is when using, and the reciprocating type swing of driving motor 81 is rotatory, drives rotation axis 82 and swings, and rotation axis 82 swings the in-process and drives the cleanness and scrape pole 83 and scrape along horizontally milipore filter 73 surface, installs expanding spring in the elastic expansion pole 83, consequently scrapes pole 83 when following the swing in the cleanness, pastes milipore filter 73 all the time, strikes off its surperficial impurity, and the impurity of striking off assembles collecting vat 64 all around, and subsequent cleanness, change are the same with embodiment one.
EXAMPLE III
Referring to fig. 1-2, the difference between this embodiment and the first and second embodiments is that a back-washing pipeline 11 is added in the tank 1, in this embodiment, the back-washing pipeline 11 is fixedly installed below the support plate 5 in the inner cavity of the tank 1 through a bracket, the back-washing pipeline 11 is provided with a plurality of water spray holes facing the ultrafiltration mechanism 7, and the back-washing pipeline 11 is connected with a high-pressure water pipe. The backwashing pipe 11 can flush water back towards the ultrafiltration membrane 73, impurities on the other side of the ultrafiltration membrane 73 are flushed away through water pressure, and the ultrafiltration membrane 73 is cleaned by matching with the cleaning mechanism 8.
The ultrafiltration membrane 73 cleaning device is novel in design, simple in structure and convenient and fast to use, the ultrafiltration membrane 73 can be conveniently replaced and cleaned through the detachable ultrafiltration mechanism 7 and the rotary supporting frame 6, the cleaning mechanism 8 and the backwashing pipeline 11 can directly clean the ultrafiltration membrane 73 in the using process of the device, the working effect of the ultrafiltration membrane 73 is ensured, and the service life of the ultrafiltration membrane 73 is prolonged.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (4)

1. A sewage treatment ultrafiltration device comprises a box body and an upper cover, wherein the upper cover is rotatably installed at an opening at the top of the box body through a hinge, a sewage inlet is fixedly formed in the upper cover, a purified water outlet is fixedly formed in the bottom of the box body, the sewage treatment ultrafiltration device is characterized in that an annular supporting plate is fixedly arranged below an opening at the top of the box body, a rotating supporting frame is supported on the annular supporting plate, one side of the rotating supporting frame is rotatably connected with the inner wall of the opening at the top of the box body through a rotating shaft, an ultrafiltration mechanism is detachably installed on the rotating supporting frame, a cleaning mechanism is installed in the middle of the upper cover, and the cleaning mechanism is close to the ultrafiltration mechanism to clean the ultrafiltration mechanism;
the box body and the upper cover are of cylindrical hollow structures, the rotary supporting frame comprises a circular supporting frame, a circular supporting plate and inserting columns, one side of the supporting frame is rotatably connected with the inner wall of the opening at the top of the box body through a rotating shaft, a circular collecting tank is arranged on the upper side of the supporting frame, the supporting plate is fixedly arranged on the lower side edge of the circular inner wall of the supporting frame, and the inserting columns are fixedly arranged on the supporting plate at equal intervals;
the ultrafiltration mechanism comprises a circular fixing frame, a support screen frame protruding upwards to form a conical structure and an ultrafiltration membrane, the inner diameters of the fixing frame and the support frame are matched, fixing holes corresponding to the inserting columns one by one are formed in the lower side of the fixing frame at equal intervals, the support screen frame is fixedly arranged on the upper side of the fixing frame, and the ultrafiltration membrane is fixedly attached to the support screen frame;
clean mechanism includes driving motor, rotation axis and clean pole of scraping, driving motor passes through bearing fixed mounting at the middle part of upper cover and the one end of drive shaft fixed connection rotation axis, the other end of rotation axis extends to upper cover towards box pivoted one side and fixed mounting has at least one clean pole of scraping, the clean pole laminating of scraping is on the upper surface of milipore filter.
2. The ultrafiltration device for sewage treatment according to claim 1, further comprising a dosing mechanism, wherein the dosing mechanism comprises a dosing pipe and a dosing box, the dosing pipe is annularly fixed on one side of the upper cover, which rotates towards the box body, the dosing box is fixedly arranged on the outer side of the upper cover, and the dosing box is connected with the dosing pipe through a pipeline.
3. The ultrafiltration device for sewage treatment according to claim 2, wherein the drug adding box is provided with a drug adding port and a water inlet pipe, and the drug adding box is internally provided with a stirring device and a pressure pump.
4. The ultrafiltration device for sewage treatment according to claim 2, further comprising a backwash pipeline, wherein the backwash pipeline is fixedly installed below the support plate in the inner cavity of the tank body through a support, the backwash pipeline is provided with a plurality of water spray holes facing the ultrafiltration mechanism, and the backwash pipeline is connected with the high-pressure water pipe.
CN202010272058.7A 2020-04-09 2020-04-09 Sewage treatment ultrafiltration device Active CN111467964B (en)

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CN111467964B true CN111467964B (en) 2021-03-30

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Publication number Priority date Publication date Assignee Title
CN112604503B (en) * 2020-11-13 2022-11-18 水迈源膜科技南通有限公司 Membrane filtration backflushing device and use method thereof
CN112717702A (en) * 2021-01-14 2021-04-30 广州恒河环保设计研究院股份有限公司 Porous filtration ceramic membrane flat plate structure
CN113860549A (en) * 2021-09-30 2021-12-31 中新联科环境科技(安徽)有限公司 Method for treating nickel-electroplating wastewater and backwashing water equipment used by same
CN114275923A (en) * 2022-01-26 2022-04-05 淮安顺西环保科技有限公司 Industrial sewage treatment ultrafiltration membrane device convenient to replace

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US20040232075A1 (en) * 2003-01-31 2004-11-25 Jason Wells Microfiltration device and method for washing and concentrating solid particles
CN101670240B (en) * 2009-10-19 2014-02-19 罗鹏 Filter tank
CN205258174U (en) * 2015-11-20 2016-05-25 浙江新国富环保科技有限公司 Ultrafiltration sewage treatment system
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