CN113293542A - A spraying device for making reverse osmosis membrane - Google Patents

A spraying device for making reverse osmosis membrane Download PDF

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Publication number
CN113293542A
CN113293542A CN202110385656.XA CN202110385656A CN113293542A CN 113293542 A CN113293542 A CN 113293542A CN 202110385656 A CN202110385656 A CN 202110385656A CN 113293542 A CN113293542 A CN 113293542A
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China
Prior art keywords
nozzle
spraying
material guiding
reverse osmosis
hole
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CN202110385656.XA
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Chinese (zh)
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CN113293542B (en
Inventor
余景海
赵小阳
叶俊东
宋涛
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Chongqing Haitong Environmental Protection Technology Co ltd
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Chongqing Haitong Environmental Protection Technology Co ltd
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Publication of CN113293542A publication Critical patent/CN113293542A/en
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Publication of CN113293542B publication Critical patent/CN113293542B/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0006—Organic membrane manufacture by chemical reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/56—Polyamides, e.g. polyester-amides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • D06N3/009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by spraying components on the web
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/125—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyamides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Nanotechnology (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to a spraying device for manufacturing a reverse osmosis membrane, which is provided with a first spraying mechanism and a second spraying mechanism, wherein the first spraying mechanism is used for spraying water-permeable microporous polysulfone on the surface of a non-woven fabric; the second spraying mechanism is used for spraying polyamide materials on the water-permeable microporous polysulfone; the first spraying mechanism is provided with a plurality of first material guiding pipes, one end of each first material guiding pipe is provided with a first nozzle, and the first nozzles spray water-permeable microporous polysulfone towards the non-woven fabric; the other end of the first material guiding pipe is connected with the distributor; the second spraying mechanism is provided with a plurality of second material guiding pipes, one end of each second material guiding pipe is provided with a second nozzle, and the second nozzles spray polyamide materials towards the non-woven fabric; the other end of the second material guiding pipe is also connected to the distributor; the distributor is internally provided with a plurality of channels and is matched with a corresponding air pump to respectively control the spraying amount of the first nozzle and the second nozzle. Simple structure, degree of automation is high, does benefit to the spraying operation, is applicable to reverse osmosis membrane industrial production, and production efficiency and high quality.

Description

A spraying device for making reverse osmosis membrane
Technical Field
The invention relates to the technical field of spraying equipment, in particular to a spraying device for manufacturing a reverse osmosis membrane.
Background
Osmosis is a phenomenon in which a solvent moves from a solution having a low solute concentration to another solution having a high solute concentration through a semi-permeable separation membrane separating the two solutions. In this case, the pressure acting on the solution having a high solute concentration by the movement of the solvent is referred to as osmotic pressure. However, when an external pressure higher than the osmotic pressure level is applied, the solvent moves to a solution having a low solute concentration, and this phenomenon is called reverse osmosis. According to the principle of reverse osmosis, various types of salts or organic substances can be separated by means of a semipermeable membrane using a pressure gradient as driving force. Reverse osmosis membranes, which utilize the reverse osmosis phenomenon, have been used to separate substances at a molecular level, remove salts from salt water or seawater, and provide water for domestic, commercial, and industrial use.
The common reverse osmosis membrane generally comprises a non-woven fabric, a supporting layer (a porous polysulfone layer) sprayed on the non-woven fabric and a polyamide functional layer arranged on the supporting layer, wherein the porous polysulfone layer is low in porosity and fixed in structure, so that the interfacial polymerization reaction is slow when the polyamide layer is prepared, the formed polyamide layer is loose and thick, and the water flux and the desalination rate are low. The existing spraying device for manufacturing the reverse osmosis membrane has the defects of high cost, complex structure, limited performance improvement, low operating efficiency and the like. Therefore, a spraying device which is easy for industrial production and is suitable for industrial utilization and used for manufacturing reverse osmosis membranes is developed.
Disclosure of Invention
The invention aims to provide a spraying device for manufacturing a reverse osmosis membrane, which well overcomes the defects of the prior art and improves the production efficiency and quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
a spraying device for manufacturing a reverse osmosis membrane is provided with a first spraying mechanism and a second spraying mechanism, wherein the first spraying mechanism is used for spraying water-permeable microporous polysulfone on the surface of non-woven fabric; the second spraying mechanism is used for spraying polyamide material on the water-permeable microporous polysulfone; wherein:
the first spraying mechanism is provided with a plurality of first material guiding pipes, one end of each first material guiding pipe is provided with a first nozzle, and the first nozzle sprays water-permeable microporous polysulfone towards the non-woven fabric; the other end of the first material guiding pipe is connected with the distributor; the second spraying mechanism is provided with a plurality of second material guiding pipes, one end of each second material guiding pipe is provided with a second nozzle, and the second nozzles spray polyamide materials towards the non-woven fabric; the other end of the second material guiding pipe is also connected to the distributor; the distributor is internally provided with a plurality of channels, and the distributor is matched with a corresponding air pump to respectively control the spraying amount of the first nozzle and the second nozzle.
The above scheme is further that the first spraying mechanism and the second spraying mechanism form adjacent upstream and downstream relations on a roll-to-roll production line, the distributor is assembled on a lifting adjusting seat, and the lifting adjusting seat synchronously adjusts the distance between the first nozzle and the second nozzle or the distance between the first nozzle and the second nozzle and the non-woven fabric.
Above-mentioned scheme is further, the lift adjustment seat drives through worm gear elevation structure and goes up and down, and this worm gear elevation structure comes the intelligent control according to the thickness of actual spraying to adjust the lift of lift adjustment seat.
The above scheme is further that the second nozzle is provided with an inner core and an outer shell, the outer shell is provided with a U-shaped inner cavity, and the center of the inner bottom of the U-shaped inner cavity is provided with a spray hole; the inner core is assembled in the U-shaped inner cavity of the shell, and a space is reserved between the inner end of the inner core and the inner bottom of the U-shaped inner cavity; the inside of inner core is equipped with the feed liquor chamber, and is equipped with the first liquid hole and the second liquid hole of intercommunication feed liquor chamber on the inner of inner core, and this first liquid hole of going out is located the central authorities department of the inner of inner core, and the second goes out the liquid hole and has three and around first liquid hole, and the liquid port department that the second goes out the liquid hole is equipped with the helicla flute, and the helicla flute goes out the liquid hole from the second and extends and progressively be close to first liquid hole.
The above solution is further that the first liquid outlet is coaxially opposite to the nozzle hole of the housing, and the aperture of the first liquid outlet is larger than the aperture of the nozzle hole.
The automatic spraying device is simple in structure, high in automation degree, beneficial to spraying operation, suitable for industrial production of reverse osmosis membranes, and high in production efficiency and quality.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the embodiment of FIG. 1;
FIG. 3 is an exploded view of a second nozzle of the embodiment of FIG. 1;
fig. 4 is a schematic view of the internal structure of the second nozzle of the embodiment of fig. 1.
The specific implementation mode is as follows:
the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, 2, 3 and 4, which are schematic views of a preferred embodiment of the present invention, the present invention provides a spray coating apparatus for manufacturing a reverse osmosis membrane, which has a first spray coating means 1 and a second spray coating means 2, the first spray coating means 1 being for spraying water-permeable microporous polysulfone on a surface of a nonwoven fabric; the second spraying means 2 is used to further spray polyamide material on the water-permeable microporous polysulfone. In this embodiment, the first spraying mechanism 1 and the second spraying mechanism 2 are assembled on the roll-to-roll production line and form an adjacent upstream-downstream relationship, so that continuous production is achieved and the efficiency is improved.
Referring to fig. 1, 2, 3 and 4, in this embodiment, the first spraying mechanism 1 has a plurality of first material guiding pipes 11, and one end of the first material guiding pipes 11 is provided with a first nozzle 12, so that the plurality of first nozzles 12 are arranged to spray the porous polysulfone toward the non-woven fabric, and the spraying is uniform and the coverage is good; and the other end of the first material guiding pipe 11 is connected with the distributor 3. The second spraying mechanism 2 is provided with a plurality of second material guiding pipes 21, one end of each second material guiding pipe 21 is provided with a second nozzle 22, so that the second nozzles 22 are arranged to spray the polyamide materials towards the non-woven fabric, and the polyamide materials are uniformly sprayed and have good coverage; and the other end of the second material guiding pipe 21 is also connected to the distributor 3, so that the first material guiding pipe 11 and the second material guiding pipe 21 are arranged at the front end and the rear end of the distributor 3 in a cantilever manner. The distributor 3 is provided with a plurality of flow channels inside, the distributor 3 further cooperates with a corresponding air pump to control the spraying amount of the first nozzle 12 and the second nozzle 22, and the specific air pressure control of the air pump is prior art and will not be described herein again. The structure realizes compact structure integration, and optimized assembly and control implementation. In this embodiment, the distributor 3 is assembled on the lifting adjusting seat 4, and the lifting adjusting seat 4 synchronously adjusts the distance between the first nozzle 12 and the second nozzle 22 or the distance between the first nozzle and the second nozzle to the non-woven fabric, so as to adjust the thickness of the coated layer after spraying, thereby facilitating the control of production and obtaining the reverse osmosis membrane with excellent quality. In this embodiment, the lifting adjusting base 4 is disposed at a portal frame provided by the base and is driven to lift by the worm and gear lifting structure 5, and the worm and gear lifting structure 5 intelligently controls the lifting of the lifting adjusting base according to the thickness of actual spraying, for example, senses the thickness of spraying by means of infrared sensing or pressure sensing, and preferably sets a corresponding sensing element behind the second spraying mechanism 2 to monitor in real time and output a control signal to the worm and gear lifting structure 5, so as to achieve intelligent control of lifting and lowering, thereby effectively controlling the spraying effect; the specific sensing elements can be purchased and configured from the market according to actual conditions, and the principle thereof is not described herein again.
Referring to fig. 1, 2, 3 and 4, in the present embodiment, the second nozzle 22 has an inner core 221 and an outer shell 222, the outer shell 222 has a U-shaped inner cavity 2221, and a nozzle hole 2222 is formed at the center of an inner bottom of the U-shaped inner cavity 2221; the core 221 is assembled into the U-shaped cavity 2221 of the shell 222 with a space between the inner end of the core 221 and the inner bottom of the U-shaped cavity 2221, resulting in a corresponding transitional mixing space. The inside of inner core 221 is equipped with feed liquor chamber 2211, and be equipped with the first liquid hole 2212 and the second liquid hole 2213 that communicate feed liquor chamber 2211 on the inner of inner core 221, this first liquid hole 2212 is located the inner central point department of inner core 221, second liquid hole 2213 has three and around first liquid hole 2212, and the liquid outlet port department of second liquid hole 2213 is equipped with spiral groove 2214, spiral groove 2214 extends and is close to first liquid hole 2212 gradually from second liquid hole 2213, reach out the liquid swirling, increase liquid mobility and mix, promote the spraying quality. First liquid outlet 2212 is coaxially opposite to injection hole 2222 of housing 222, the aperture of first liquid outlet 2212 is larger than that of injection hole 2222, and the liquid outlet side of injection hole 2222 is designed in a trumpet shape. The nozzle is simple in structure, improves the spraying effect, is beneficial to uniformly spraying the polyamide material, and obtains a functional layer with excellent performance.
The invention has the advantages of simple structure, high automation degree, stable and reliable work and short process flow, is suitable for the industrial production of the reverse osmosis membrane, greatly improves the production efficiency and quality and reduces the production cost.
It is to be understood that the foregoing detailed description of the present invention has been provided only for the purpose of illustrating the technical spirit and features of the present invention, and the present invention is not limited thereto.

Claims (5)

1. A spraying device for manufacturing a reverse osmosis membrane is characterized by comprising a first spraying mechanism (1) and a second spraying mechanism (2), wherein the first spraying mechanism (1) is used for spraying water-permeable microporous polysulfone on the surface of non-woven fabric; the second spraying mechanism (2) is used for spraying polyamide materials on the water-permeable microporous polysulfone; wherein:
the first spraying mechanism (1) is provided with a plurality of first material guiding pipes (11), one end of each first material guiding pipe (11) is provided with a first nozzle (12), and the first nozzle (12) sprays the water-permeable microporous polysulfone towards the non-woven fabric; the other end of the first material guiding pipe (11) is connected with the distributor (3); the second spraying mechanism (2) is provided with a plurality of second material guiding pipes (21), one end of each second material guiding pipe (21) is provided with a second nozzle (22), and the second nozzle (22) sprays the polyamide materials towards the non-woven fabric; the other end of the second material guiding pipe (21) is also connected to the distributor (3); the distributor (3) is internally provided with a plurality of channels, and the distributor (3) is matched with a corresponding air pump to respectively control the spraying amount of the first nozzle (12) and the second nozzle (22).
2. The spray coating device for manufacturing a reverse osmosis membrane according to claim 1, wherein the first spray coating mechanism (1) and the second spray coating mechanism (2) are arranged in an adjacent upstream-downstream relationship on a roll-to-roll production line, and the distributor (3) is assembled on an elevation adjusting seat (4), and the elevation adjusting seat (4) synchronously adjusts the distance between the first nozzle (12) and the second nozzle (22) or the distance between the first nozzle and the second nozzle.
3. The spray coating device for manufacturing reverse osmosis membrane according to claim 2, wherein the elevation adjustment base (4) is driven to ascend and descend by a worm and gear elevating structure (5), and the worm and gear elevating structure (5) intelligently controls and adjusts the elevation of the elevation adjustment base (4) according to the thickness of the actual spray coating.
4. The spray coating device for manufacturing a reverse osmosis membrane according to claim 1 or 2, wherein the second nozzle (22) has an inner core (221) and an outer shell (222), the outer shell (222) has a U-shaped inner cavity (2221), and a spray hole (2222) is opened at the center of the inner bottom of the U-shaped inner cavity (2221); the inner core (221) is assembled into the U-shaped inner cavity (2221) of the outer shell (222), and a space is reserved between the inner end of the inner core (221) and the inner bottom of the U-shaped inner cavity (2221); the inside of inner core (221) is equipped with feed liquor chamber (2211), and be equipped with first liquid hole (2212) and second liquid hole (2213) that communicate feed liquor chamber (2211) on the inner of inner core (221), this first liquid hole (2212) is located the central point department of the inner of inner core (221), second liquid hole (2213) has three and around first liquid hole (2212), and the liquid outlet port department of second liquid hole (2213) is equipped with spiral groove (2214), spiral groove (2214) extends and is gradually close to first liquid hole (2212) from second liquid hole (2213).
5. The spray coating device for manufacturing reverse osmosis membranes according to claim 4, characterized in that the first liquid outlet hole (2212) is coaxially opposite to the spray hole (2222) of the shell (222), and the aperture of the first liquid outlet hole (2212) is larger than that of the spray hole (2222).
CN202110385656.XA 2021-04-10 2021-04-10 Spraying device for manufacturing reverse osmosis membrane Active CN113293542B (en)

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Application Number Priority Date Filing Date Title
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CN113293542B CN113293542B (en) 2023-05-09

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980008351A (en) * 1996-07-19 1998-04-30 토마스 엘. 무어헤드 Method and apparatus for applying liquid coating by spray nozzle
TW480191B (en) * 1999-06-10 2002-03-21 Kuroda Co Ltd Nozzle for coating and method for coating
WO2005042170A1 (en) * 2003-10-31 2005-05-12 Nippon Paint Co., Ltd. Device and method for spray coating
GB0600674D0 (en) * 2006-01-13 2006-02-22 Ici Plc Airless Spray-Coating Of A Surface With A Viscous Aqueous Architectural Coating Composition
US20090050558A1 (en) * 2004-10-04 2009-02-26 Hirotoshi Ishizuka Process for producing composite reverse osmosis membrane
WO2013176524A1 (en) * 2012-05-24 2013-11-28 주식회사 엘지화학 Reverse osmosis membrane
WO2013176523A1 (en) * 2012-05-24 2013-11-28 주식회사 엘지화학 Method for manufacturing a reverse osmosis membrane and a reverse osmosis membrane manufactured thereby
JP2014213262A (en) * 2013-04-25 2014-11-17 栗田工業株式会社 Forward osmosis membrane
CN107214007A (en) * 2017-07-04 2017-09-29 深圳市德瑞茵精密科技有限公司 A kind of air gun and its atomizer of sprayed with adhesive coating
CN206604689U (en) * 2017-02-27 2017-11-03 上海唯赛勃环保科技股份有限公司 Pressure vessel for reverse osmosis auto spray painting device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980008351A (en) * 1996-07-19 1998-04-30 토마스 엘. 무어헤드 Method and apparatus for applying liquid coating by spray nozzle
TW480191B (en) * 1999-06-10 2002-03-21 Kuroda Co Ltd Nozzle for coating and method for coating
WO2005042170A1 (en) * 2003-10-31 2005-05-12 Nippon Paint Co., Ltd. Device and method for spray coating
US20090050558A1 (en) * 2004-10-04 2009-02-26 Hirotoshi Ishizuka Process for producing composite reverse osmosis membrane
GB0600674D0 (en) * 2006-01-13 2006-02-22 Ici Plc Airless Spray-Coating Of A Surface With A Viscous Aqueous Architectural Coating Composition
WO2013176524A1 (en) * 2012-05-24 2013-11-28 주식회사 엘지화학 Reverse osmosis membrane
WO2013176523A1 (en) * 2012-05-24 2013-11-28 주식회사 엘지화학 Method for manufacturing a reverse osmosis membrane and a reverse osmosis membrane manufactured thereby
CN103648622A (en) * 2012-05-24 2014-03-19 Lg化学株式会社 Method for manufacturing a reverse osmosis membrane and a reverse osmosis membrane manufactured thereby
JP2014213262A (en) * 2013-04-25 2014-11-17 栗田工業株式会社 Forward osmosis membrane
CN206604689U (en) * 2017-02-27 2017-11-03 上海唯赛勃环保科技股份有限公司 Pressure vessel for reverse osmosis auto spray painting device
CN107214007A (en) * 2017-07-04 2017-09-29 深圳市德瑞茵精密科技有限公司 A kind of air gun and its atomizer of sprayed with adhesive coating

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