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CN107457143B - Ceramic membrane coating device - Google Patents

Ceramic membrane coating device Download PDF

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Publication number
CN107457143B
CN107457143B CN201710654773.5A CN201710654773A CN107457143B CN 107457143 B CN107457143 B CN 107457143B CN 201710654773 A CN201710654773 A CN 201710654773A CN 107457143 B CN107457143 B CN 107457143B
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China
Prior art keywords
sealing joint
lower sealing
valve
coating
slurry tank
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CN201710654773.5A
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CN107457143A (en
Inventor
陈锋涛
俞三传
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Taizhou Liou Environmental Protection New Material Co ltd
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Zhejiang Sci Tech University ZSTU
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10Supported membranes; Membrane supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039Recovery of excess liquid or other fluent material; Controlling means therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02Means for manipulating or holding work, e.g. for separate articles for particular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • B05C3/09Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating separate articles
    • B05C3/10Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating separate articles the articles being moved through the liquid or other fluent material
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to the technical field of ceramic membrane production, in particular to a ceramic membrane coating device. The invention comprises a slurry tank, a valve and a sealing joint, and is characterized in that the slurry tank is connected with a lower sealing joint through a hose; and the upper sealing joint corresponds to the lower sealing joint. The invention has the advantages of saving money and purchasing plastic films, saving manpower for wrapping and stripping the plastic films, reducing the pollution of the plastic films which are difficult to degrade to the environment, having simple coating process and short coating time (only 1 min/count), reducing the uneven coating of the film layer caused by the manual personality difference and avoiding the incomplete coating.

Description

Ceramic membrane coating device
Technical Field
The invention relates to the technical field of ceramic membrane separation, in particular to a ceramic membrane coating device.
Technical Field
The ceramic membrane has the advantages of high mechanical strength, acid and alkali resistance, high temperature resistance, good chemical stability, organic solvent resistance, good regeneration performance, simple separation process, low energy consumption, simple and convenient operation and maintenance, long service life and the like, is widely applied to special separation, chemical production and wastewater treatment, and is particularly prominent in the applications of oily wastewater treatment, impurity removal and concentration of biological fermentation liquid, impurity removal of sugar industry, deep purification of refined brine and tobacco extract in chlor-alkali industry.
However, in the production process of the ceramic membrane, the transition layer and the filter layer are not uniformly coated, and the thickness of the membrane layer is not uniform, so that the ceramic membrane has many defects in practical application: cracking of the membrane layer, falling off of the membrane layer, poor membrane filtration precision, wide pore size distribution, low permeation flux, fast flux attenuation, serious membrane pollution and low separation efficiency. Therefore, the ceramic membrane coating device which is uniform in coating and can be produced in a standardized mode has important value for relevant industrial application.
In the production process of the traditional ceramic membrane, a coating process section adopts a manual dipping and pulling method, so that on one hand, a great amount of financial resources, material resources and time are needed to wrap the outer surface of the ceramic support body, and the coating liquid is prevented from being coated on the outer surface of the membrane tube in the dipping and pulling process; on the other hand, the outer surface of the ceramic support is coated with a plastic film (low-density polyvinyl chloride) generally, the plastic film is used in a large amount, the plastic film needs to be peeled off before the coating layer is dried and is ready to be sintered, the peeling process needs manpower and time, and the low-density polyethylene is difficult to degrade and can be used as solid waste to seriously pollute the environment. The method is mainly characterized in that due to artificial personality difference, the dipping time, the residence time and the pulling time of the ceramic support body in the slurry are inconsistent, so that the thickness of the ceramic membrane layer is not uniform, and even the possibility that the membrane coating liquid does not completely cover the membrane channel exists.
Patent CN103193513B discloses a method for coating a filter membrane by air spraying technology, which has high efficiency and good operation performance. However, the air spraying coating has low utilization rate, much spray dispersion and high requirement on equipment.
The invention aims to solve the technical problem of providing a device and a method which do not need a wrapping process, can uniformly coat each membrane tube and realize the standardized production of high-efficiency utilization coating.
Disclosure of Invention
In order to solve the problems, the technical scheme of the invention is as follows: the coating liquid is uniformly coated on the surface of the channel in the ceramic membrane under the action of gravity, the adhesion of the coating liquid and the capillary force on the surface of the ceramic support.
The method is realized by the following technical scheme:
a ceramic membrane coating device comprises a slurry tank, a valve and a sealing joint, and is characterized in that the slurry tank is connected with a lower sealing joint through a hose; and the upper sealing joint corresponds to the lower sealing joint.
Preferably, in the ceramic membrane coating device, the lower sealing joint and the upper sealing joint are mounted on the lifting fixing column, and the upper sealing joint is connected to the lifting fixing column through an upper sealing joint fixing rod; the lower sealing joint is connected with the lifting fixing column through a lower sealing joint fixing rod.
Preferably, the lower sealing joint and the upper sealing joint of the ceramic membrane coating device correspond vertically in a vertical direction.
Preferably, in the above ceramic film coating apparatus, the elevating motor is provided on the elevating fixing column and is located below the fixing rod of the upper sealing joint.
Preferably, in the ceramic film coating apparatus, an electric stirrer is provided in the slurry tank.
Preferably, in the above ceramic membrane coating apparatus, a valve is provided between the slurry tank and the lower seal joint. Preferably, the valve between the slurry tank and the lower sealing joint comprises a valve A and a valve B, wherein the valve A is used for controlling the discharge amount of the slurry tank, and the valve B is used for controlling the feed amount of the lower sealing joint.
The specific implementation process is as follows: two ends of a first ceramic support body are respectively arranged on an upper sealing joint and a lower sealing joint, then, a prepared coating liquid is added into a slurry tank, under the action of an electric stirrer, the slurry is mixed more uniformly, a valve A is opened, the slurry flows to a valve B through a hose, the valve B is ensured to be higher than the level of the slurry in the slurry tank, then, the valve B is opened, then, a lifting motor is started, the ceramic support body descends at the speed of 1-1000 mm/s under the transmission of the lifting motor and stays for 1-600 s, then ascends at the speed of 1-1000 mm/s and stays for 1-600 s, the residual slurry in the ceramic support body returns to the hose, and finally, the coated ceramic support body is taken out from the upper sealing joint and the lower sealing joint, and the coating process is carried out once. The second ceramic support was coated as follows: the ceramic support body is only required to be arranged on the upper sealing joint and the lower sealing joint, and is descended, stayed, ascended and stayed according to a set program, and finally the ceramic support body is taken out from the upper sealing joint and the lower sealing joint without other operations. And by analogy, coating all the ceramic support bodies needing to be coated.
Preferably, the ceramic support material is one or more composite ceramic materials selected from alumina, titania, zirconia, silicon carbide, silica, mullite and cordierite.
Preferably, the ceramic support is lowered at a speed of 1 to 1000mm/s by the driving of the elevating motor 7 and stays at the speed of 1 to 600s, and then is raised at a speed of 1 to 1000mm/s and stays at the speed of 1 to 600s.
Has the beneficial effects that: the invention can reduce the uneven coating of the film layer caused by the artificial personality difference; incomplete coating phenomenon can not occur and the process is simple; the coating time is short, and only 1 min/piece is needed; the coating device is simple, the slurry can be repeatedly used, and the loss is low.
Drawings
FIG. 1 is a schematic view of a ceramic film coating apparatus
The reference numbers illustrate: 1. an electric stirrer; 2. a slurry tank; 3. a, a valve; 4. a hose; 5. a valve B; 6. a lower sealing joint; 7. a lifting motor; 8. a porous silicon carbide ceramic support; 9. an upper sealing joint; 10. an upper sealing joint fixing rod; 11. lifting and fixing columns; 12. lower sealing joint dead lever.
The specific implementation mode is as follows:
the present invention is further illustrated by the following examples, which are not intended to limit the scope of the invention in any way.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1
According to the structure shown in the attached figure 1, a ceramic membrane coating device is manufactured, and comprises a slurry tank 2, a valve and a sealing joint, wherein the slurry tank 2 is connected with a lower sealing joint 6 through a hose 4; and an upper sealing joint 9 is arranged corresponding to the lower sealing joint 6, and two ends of the first ceramic support body are respectively arranged on the upper sealing joint 9 and the lower sealing joint 6, so that the operation can be carried out.
In the embodiment, the operation is difficult, but the aim of the invention can be achieved, namely the problem of uneven coating of the film layer is solved; the problem of incomplete coating is avoided, and the process is simple; the coating time is short, and only 1 min/piece is needed; the coating device is simple, the slurry can be repeatedly used, and the loss is low.
Example 2
Manufacturing a ceramic membrane coating device, which comprises a slurry tank 2, a valve and a sealing joint, wherein the slurry tank 2 is connected with a lower sealing joint 6 through a hose 4; also corresponding to the lower sealing joint 6 is an upper sealing joint 9. Wherein the lower sealing joint 6 and the upper sealing joint 9 are arranged on the lifting fixing column 11, and the upper sealing joint 9 is connected to the lifting fixing column 11 through an upper sealing joint fixing rod 10; the lower sealing joint 6 is connected to the lifting fixing column 11 through a lower sealing joint fixing rod 12. The lower sealing joint 6 vertically corresponds to the upper sealing joint 9 in the vertical direction. The two ends of the first ceramic support body are respectively arranged on the upper sealing joint 9 and the lower sealing joint 6, and then the operation can be carried out.
In this embodiment, the object of the present invention can be achieved as well, but some processing needs to be performed in advance in the preparation process at an early stage in order to facilitate the situation occurring in the operation process.
Example 3
Manufacturing a ceramic membrane coating device, which comprises a slurry tank 2, a valve and a sealing joint, wherein the slurry tank 2 is connected with a lower sealing joint 6 through a hose 4; also corresponding to the lower sealing joint 6 is an upper sealing joint 9. Wherein the lower sealing joint 6 and the upper sealing joint 9 are arranged on the lifting fixing column 11, and the upper sealing joint 9 is connected to the lifting fixing column 11 through an upper sealing joint fixing rod 10; the lower sealing joint 6 is connected to the lifting fixing column 11 through a lower sealing joint fixing rod 12. The lower sealing joint 6 vertically corresponds to the upper sealing joint 9 in the vertical direction. A lifting motor 7 is arranged on the lifting fixing column 11 and is positioned below the upper sealing joint fixing rod 10. An electric stirrer 1 is arranged in the slurry tank 2, which is beneficial to stirring. A valve is arranged between the slurry tank 2 and the lower sealing joint 6, so that the materials can be better controlled; the valve between the slurry tank 2 and the lower sealing joint 6 comprises a valve A3 and a valve B5, wherein the valve A3 is used for controlling the discharge amount of the slurry tank 2, and the valve B5 is used for controlling the feeding amount of the lower sealing joint 6.
Two ends of a first ceramic support body are respectively arranged on an upper sealing joint 9 and a lower sealing joint 6, then, prepared coating liquid is added into a slurry tank 2, under the action of an electric stirrer 1, the slurry is mixed more uniformly, an A valve 3 is opened, the slurry flows to a B valve 5 through a hose, the B valve 5 is ensured to be higher than the liquid level of the slurry in the slurry tank 2, then, the B valve 5 is opened, then, a lifting motor 7 is started, the ceramic support body is driven by the lifting motor 7 to descend at the speed of 10mm/s, stays for 5s, then, the ceramic support body rises at the speed of 10mm/s, stays for 10s, the residual slurry in the ceramic support body is returned to the hose 4, and finally, the coated ceramic support body is taken out from the upper sealing joint 9 and the lower sealing joint 6, and the coating process is carried out once. The second ceramic support was coated as follows: the ceramic support body is only required to be installed on the upper sealing joint 9 and the lower sealing joint 6, and is descended, stayed, ascended and stayed according to a set program, and finally the ceramic support body is taken out from the upper sealing joint 9 and the lower sealing joint 6, and other operations are not required. And by analogy, coating all the ceramic support bodies needing coating. This procedure is suitable for applying transition layers, the thickness of the film layer to be applied being too thick.
Example 4
Two ends of a first ceramic support body are respectively arranged on an upper sealing joint 9 and a lower sealing joint 6, then, prepared coating liquid is added into a slurry tank 2, under the action of an electric stirrer 1, the slurry is mixed more uniformly, an A valve 3 is opened, the slurry flows to a B valve 5 through a hose 4, the B valve 5 is ensured to be higher than the liquid level of the slurry in the slurry tank 2, then, the B valve 5 is opened, then, a lifting motor 7 is started, the ceramic support body is driven by the lifting motor 7 to descend at the speed of 20mm/s, stays for 3s, then, ascends at the speed of 20mm/s, stays for 5s, the residual slurry in the ceramic support body is retreated into the hose 4, and finally, the coated ceramic support body is taken out from the upper sealing joint 9 and the lower sealing joint 6, and the coating process is carried out once. The second ceramic support was coated as follows: the ceramic support body is only required to be installed on the upper sealing joint 9 and the lower sealing joint 6, and is descended, stayed, ascended and stayed according to a set program, and finally the ceramic support body is taken out from the upper sealing joint 9 and the lower sealing joint 6, and other operations are not required. And by analogy, coating all the ceramic support bodies needing to be coated. This procedure is suitable for coating filter layers with moderate coating thickness.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims.

Claims (4)

1. A ceramic membrane coating device comprises a slurry tank (2), a valve and a sealing joint, and is characterized in that the slurry tank (2) is connected with a lower sealing joint (6) through a hose (4); an upper sealing joint (9) is also arranged corresponding to the lower sealing joint (6); the lower sealing joint (6) and the upper sealing joint (9) are arranged on the lifting fixing column (11), and the upper sealing joint (9) is connected to the lifting fixing column (11) through an upper sealing joint fixing rod (10); the lower sealing joint (6) is connected to the lifting fixing column (11) through a lower sealing joint fixing rod (12); the lower sealing joint (6) vertically corresponds to the upper sealing joint (9) in the vertical direction; a lifting motor (7) is arranged on the lifting fixing column (11) and is positioned below the upper sealing joint fixing rod (10).
2. A ceramic membrane coating device according to claim 1, wherein an electric stirrer (1) is arranged inside the slurry tank (2).
3. A ceramic membrane coating device according to claim 1, wherein a valve is provided between the slurry tank (2) and the lower sealing joint (6).
4. A ceramic membrane coating device according to claim 3, wherein the valve between the slurry tank (2) and the lower sealing joint (6) comprises a valve a (3) and a valve B (5), wherein the valve a (3) is used to control the discharge of the slurry tank (2) and the valve B (5) is used to control the feed of the lower sealing joint (6).
CN201710654773.5A 2017-08-03 2017-08-03 Ceramic membrane coating device Active CN107457143B (en)

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CN201710654773.5A CN107457143B (en) 2017-08-03 2017-08-03 Ceramic membrane coating device

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Application Number Priority Date Filing Date Title
CN201710654773.5A CN107457143B (en) 2017-08-03 2017-08-03 Ceramic membrane coating device

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CN107457143B true CN107457143B (en) 2023-03-17

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110976186B (en) * 2019-12-13 2022-08-05 新昌中国计量大学企业创新研究院有限公司 Electrode coating device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203578124U (en) * 2013-10-18 2014-05-07 北京日上工贸有限公司 Heat radiator anticorrosion liquid filling device
WO2017098355A1 (en) * 2015-12-09 2017-06-15 Basf Corporation Systems and methods for solution coating a substrate
CN207401658U (en) * 2017-08-03 2018-05-25 台州利欧环保新材料有限公司 A kind of ceramic membrane coating unit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007499A1 (en) * 2010-02-09 2011-08-11 Umicore AG & Co. KG, 63457 Volumetric coating arrangement
US9096923B2 (en) * 2011-11-10 2015-08-04 Corning Incorporated Coating apparatus and method for forming a coating layer on monolith substrates

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203578124U (en) * 2013-10-18 2014-05-07 北京日上工贸有限公司 Heat radiator anticorrosion liquid filling device
WO2017098355A1 (en) * 2015-12-09 2017-06-15 Basf Corporation Systems and methods for solution coating a substrate
CN207401658U (en) * 2017-08-03 2018-05-25 台州利欧环保新材料有限公司 A kind of ceramic membrane coating unit

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Effective date of registration: 20240626

Address after: 317500 No.2, 4th Street, East New District, Wenling City, Taizhou City, Zhejiang Province

Patentee after: TAIZHOU LIOU ENVIRONMENTAL PROTECTION NEW MATERIAL Co.,Ltd.

Country or region after: China

Address before: 310018 Xiasha Higher Education Zone, Hangzhou, Zhejiang

Patentee before: ZHEJIANG SCI-TECH University

Country or region before: China