KR20160149386A - Preparation method for cylindrical or tubular support coated with powders, and device therefor - Google Patents
Preparation method for cylindrical or tubular support coated with powders, and device therefor Download PDFInfo
- Publication number
- KR20160149386A KR20160149386A KR1020150086185A KR20150086185A KR20160149386A KR 20160149386 A KR20160149386 A KR 20160149386A KR 1020150086185 A KR1020150086185 A KR 1020150086185A KR 20150086185 A KR20150086185 A KR 20150086185A KR 20160149386 A KR20160149386 A KR 20160149386A
- Authority
- KR
- South Korea
- Prior art keywords
- support
- coating composition
- cylindrical
- compressed gas
- tubular
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/501—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by diffusion
- C01B3/503—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by diffusion characterised by the membrane
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
The present invention relates to a method of manufacturing a cylindrical or tubular support coated with a powder and an apparatus therefor.
As a method for forming the powder coating layer on the outer surface of the cylindrical or tubular support, a dip coating method or a spray coating method is generally used.
The dip coating is a method in which the support is immersed in a container containing the coating solution, and then the support is lifted to cure the coating solution attached to the support. Such dip coating is inconvenient in that the content of the powder such as ceramics or metal powder contained in the coating liquid is changed every time the coating is performed, so that the composition of the coating liquid must be adjusted each time coating is performed.
Spray coating is a method in which a coating solution is supplied to a support by a spray gun, and then the support is hardened and coated. However, when such a spray coating is supplied to a cylindrical or tubular support, it is difficult to uniformly supply the spray coating, so that the coating layer becomes uneven and the coating layer has high roughness.
On the other hand, the hydrogen separation membrane is divided into a molecular permeable membrane, an atomic permeable membrane, and an electron or proton permeable membrane depending on the permeation mechanism. The molecular permeable membrane is composed of porous ceramics or porous ceramics coated with metal. It can be separated by molecular sieving effect, surface diffusion, and Knudsen diffusion. The atomic permeable membrane is a metal dense membrane that absorbs the components to be separated on the metal surface and dissociates the atoms. The atoms migrate between the metal lattices, recombine with molecules on the opposite side of the membrane, . The proton permeable membrane is a process similar to an atomic permeable membrane, and involves the process of dissociating protons and electrons, respectively, through a metal lattice and an electric bend, respectively, and recombining. Among them, a metal dense membrane, particularly a palladium-based dense membrane, has been commercialized to separate hydrogen and various applications have been tried.
The palladium-based dense membrane has a high energy efficiency and is applied to various separation processes such as PSA (pressure swing adsorption), deep cooling, separator, and getter for obtaining hydrogen from a hydrogen mixed gas. The performance of the hydrogen separation membrane is an important performance index for hydrogen flux and selectivity. Particularly, since the hydrogen permeation amount is determined by the thickness of the hydrogen separation membrane layer, coating of a dense ultra thin film free from micropores is essential.
In addition, the ultra thin film of the separation membrane is required to have a separation membrane protection layer that does not significantly affect the permeation performance while protecting the surface of the separation membrane, because it can be greatly affected by particulate contaminants such as catalyst particles. Therefore, it is required to develop ultra thin film coating technology for the production of a membrane having excellent performance, and to develop a membrane coating technology through a simplified manufacturing process.
The filter, on the other hand, allows fluid to pass through and allow larger particles to deposit on the filter surface than the pores of the filter, thereby separating the solid particles from the fluid. Where the fluid may be a liquid or a gas. The filter may be made of a ceramic, metal, or polymer material having small pores that can filter suspended particles. The structure of the filter can be roughly classified into two types: a symmetric filter having a uniform structure from the surface of the filter to the inside thereof, and an asymmetric filter that is not uniform.
The ceramic filter is formed by sintering the particles and generally comprises an asymmetric filter. Usually, it has a two- or three-layer structure, and the lower layer is composed of coarse particles in order to achieve a high permeation flux by lowering the permeation resistance. The material separation takes place in a dense layer composed of fine particles on the surface. Such a method of manufacturing a ceramic filter can be classified mainly according to the initial molding and the coating method of the separator layer. Examples of the initial forming process include an extrusion process, a slip-cast process, a pressing process, and a tape-casting process. The coating process of the separator layer includes a dip-coating process, an aerosol deposition process, and a sol-gel process.
Metallic filters show superior physical strength and flexibility compared to polymeric or ceramic filters. In general, the metal filter is formed by sintering the metal particles by pressing the metal particles into a predetermined frame, and thus the manufacturing cost is high and the effective area per unit volume is very small since the diameter is very large as compared with the polymer hollow fiber filter. . Accordingly, a metal / ceramic composite membrane using a ceramic material as a support and a microstructure formation method has been proposed. The metal material has good mechanical strength and can be easily welded and melt processed. It is advantageous to use as a support. The ceramic sol can be easily adjusted in particle size according to the synthesis conditions and can produce particles of various sizes. It is possible to provide a composite membrane by taking advantage of metals and ceramics.
It is an object of the present invention to provide a method and apparatus capable of forming a uniform coating layer on the outer surface of a support having a cylindrical or tubular shape in a simpler process.
A first aspect of the present invention is a coating method comprising: a first step of applying a coating composition in which powder is dispersed to a part or all of a cylindrical or tubular support; A second step of supplying the coating composition while moving in the axial direction of the support to spread the coating composition on the surface of the support; And a third step of drying and selectively heat treating the support. The present invention also provides a method of manufacturing a powder coated cylindrical or tubular support.
According to a second aspect of the present invention, there is provided a method of manufacturing a semiconductor device, comprising: a first step of applying a coating composition in which powder is dispersed to a part or all of a cylindrical or tubular separation membrane; A second step of supplying the coating composition while moving in the axial direction of the separation membrane to spread the coating composition on the surface of the separation membrane; And a third step of drying and selectively heat-treating the separation membrane. The present invention also provides a method of manufacturing a cylindrical or tubular separation membrane coated with a powder.
A third aspect of the present invention is a method for manufacturing a filter, comprising: a first step of applying a coating composition in which powder is dispersed to a part or all of a cylindrical or tubular filter support; A second step of supplying the compressed gas while moving in the axial direction of the filter support to spread the coating composition on the filter support surface; And a third step of drying and selectively heat treating the filter support of the second step.
A fourth aspect of the present invention is an apparatus for coating powder on the surface of a cylindrical or tubular support, comprising: a support securing means for securing a cylindrical or tubular support; And a pressurized gas supplying means for supplying the pressurized gas while moving in the axial direction of the support to a cylindrical or tubular support to which a coating composition in which the powder is dispersed is partially or entirely applied.
According to a fifth aspect of the present invention, there is provided an apparatus for coating powder on a surface of a cylindrical or tubular separator, comprising: a separator fixing means for fixing a cylindrical or tubular separator; And a pressurized gas supplying means for supplying compressed gas while moving in the axial direction of the separator to a cylindrical or tubular separator coated with a part or all of the coating composition in which the powder is dispersed.
A sixth aspect of the present invention is an apparatus for coating a powder on a surface of a cylindrical or tubular filter support, comprising: a membrane-securing means for securing a cylindrical or tubular filter support; And a pressurized gas supply means for supplying compressed gas while moving in the axial direction of the filter support to a cylindrical or tubular filter support to which a coating composition in which powder is dispersed is applied in part or in whole.
Hereinafter, the present invention will be described in detail.
In order to form a powder coating layer such as a ceramic or metal powder on a conventional cylindrical or tubular support, dip coating or spray coating is generally used due to the morphological limitation of the cylindrical or tubular support having a curved surface. However, in the coating method by the dip coating method, the composition of the coating solution used after the coating process is changed, that is, the content of the powder such as ceramics or metal powder, is inconvenient to newly adjust the coating composition every time the coating process is performed . In addition, the coating method by the spray coating method is disadvantageous in that it is difficult to uniformly supply the coating composition and the coating layer becomes nonuniform and the coating layer has high roughness.
The present invention can be applied to a cylindrical or tubular support having a cylindrical or tubular shape by applying a coating composition to a part or the whole of a cylindrical or tubular support and then feeding the compressed gas in the axial direction of the support while spreading the coating composition on the surface of the support. It has been found that a uniform and thin coating layer can be formed on the outer surface by a simpler process and that even if the coating process is repeated a plurality of times, it is not necessary to newly adjust the composition of the coating solution and a low-roughness filter layer or a separator layer can be formed The present invention is based on this.
As described above, the manufacturing method of the cylindrical or tubular support coated with the powder according to the present invention
A first step of applying a coating composition in which powder is dispersed to a part or all of a cylindrical or tubular support;
A second step of supplying the coating composition while moving in the axial direction of the support to spread the coating composition on the surface of the support; And
And a third step of drying and selectively heat treating the support.
Preferably, the method of producing a cylindrical or tubular support coated with a powder according to the present invention comprises the step of selecting the pressure of the compressed gas corresponding to the viscosity of the coating composition for improving the flowability of the coating composition prior to the second step Step < / RTI >
The first step is a step of applying a coating composition in which powder is dispersed to a part or all of a cylindrical or tubular support, and the coating composition may be evenly applied over the entire surface of the support, or a part of the support, And a suitable amount of the coating composition may be placed on one end to be applied in a bulk form.
The term "support" used in the present invention may mean a structure having a surface on which a coating layer is formed. In the present invention, a support having a cylindrical or tubular shape, Can be used. The method of manufacturing a cylindrical or tubular support coated with a powder according to the present invention has an advantage that a uniform and thin coating layer can be formed by using a compressed gas even for a support having a curved outer surface. The support may be a porous support or a non-porous support, and a suitable support may be selected depending on the intended use.
In one embodiment, the support may be a support for a metal dense hydrogen separation membrane. It is preferable to use a porous support for the metal dense hydrogen separation membrane tube to allow the separated hydrogen to pass therethrough.
In the present invention, a metal or ceramic material may be used as the porous support. As the porous metal material, stainless steel, nickel, inconel, or the like can be used. As the porous ceramic material, oxides based on Al, Ti, Zr, Si and the like can be used. Non-limiting examples of porous supports are tubular alumina, stainless steel.
Preferably, the surface treatment process may be performed prior to coating to adjust the surface roughness of the porous support. As the surface treatment method, a polishing process using a send paper or a dry or wet etching process can be used. Also, in the case of a porous support having pores that are too large in view of the average particle size of the coated metal or ceramic particles, a pretreatment process for filling the pores can be performed prior to coating. Specifically, after the surface pores of the porous support are filled with the ZrO 2 powder-containing dispersion, the surface of the porous support may be pretreated.
It is preferable that the size of the surface pores formed in the porous support is not too large or too small. For example, when the size of the surface pores of the porous support is less than 0.001 탆, the permeability of the porous support itself is low and it is difficult to perform the function as the porous support. On the other hand, when the size of the surface pores is more than 100 탆, the pore diameter becomes too large and the thickness of the Pd-containing layer as the metal separation film must be thick. Therefore, it is preferable that the surface pores of the porous support have a size of 0.001 to 100 탆.
In the present invention, the coating composition may have a viscosity which is fluidized by a compressed gas. The viscosity of the coating composition can be appropriately adjusted according to the pressure of the compressed gas to be supplied. Preferably, the coating composition may be in the form of a paste, sol, gel or slurry. Preferably, when the support is a porous support, the viscosity of the coating composition may be adjusted so that the powder is not penetrated into the pores of the porous support.
In the present invention, the powder dispersed in the coating composition may include all of powder of an organic-inorganic component. That is, the powder can be applied without limitation as long as it is composed of a component which is not dissolved by the dispersion medium and can maintain the powder form. Preferably, the powder may be a powder of a metal, a metal oxide and / or a ceramic component. Specifically, the powder may be a metal powder including Pd, Au, Ag, Cu, Ni, Ru, Rh, or an alloy thereof; And a carbide based ceramic containing one of Ti, Zr, Al, Si, Ce, La, Sr, Cr, V, Nb, Ga, Ta, W and Mo.
In one embodiment, the coating composition may be a coating composition for forming a catalyst layer for hydrogen separation. Specifically, the composition may be a coating composition for forming a palladium (Pd) -containing layer for a hydrogen separation membrane, and may be a composition for coating to form a dense palladium-containing coating layer.
In the present invention, the Pd-containing layer may be palladium or a palladium alloy. The palladium alloy may be an alloy of Pd and at least one metal selected from the group consisting of Au, Ag, Cu, Ni, Ru and Rh. It is also within the scope of the present invention that the Pd-containing layer further comprises layers such as Pd / Cu, Pd / Au, Pd / Ag, Pd /
The Pd-containing layer may be formed to a thickness of 0.1 to 20 탆. If the thickness is less than 0.1 탆, it is desirable that the hydrogen permeability is further improved. However, it is difficult to produce the metal separation membrane densely and the life of the metal separation membrane is shortened. When the thickness is formed to be more than 20 占 퐉, the hydrogen permeability can be relatively lowered while being formed densely. Also, the manufacturing cost of the overall hydrogen separation membrane is increased due to the metal separator having a thickness exceeding 20 탆 by using expensive palladium. The thickness of the Pd-containing layer as the metal separator is preferably as thin as possible because the hydrogen permeability through the separator shows a high hydrogen permeability. Preferably, the thickness is preferably 1 to 10 占 퐉 in consideration of the life characteristics of the metal separator, the hydrogen permeability, and the like.
In another embodiment, the coating composition may be a coating composition for forming a porous shielding layer for a hydrogen separation membrane. The porous shielding layer that can be formed on the porous metal support for the hydrogen separation membrane is capable of passing hydrogen through the pore / gap to prevent diffusion that may occur between the palladium and the metal support, As shown in FIG. Non-limiting examples of the shielding layer include oxide-based, nitride-based, carbide-based ceramics containing one of Ti, Zr, Al, Si, Ce, La, Sr, Cr, V, Nb, Ga, Ta, have. Preferably, there are oxide-based ceramic materials such as TiO y , ZrO y , and Al 2 O z (1 <y? 2 or 2 <z? 3). The shielding layer may be formed of a metal oxide powder by a sol-gel method.
The thickness of the shielding layer can be determined taking into consideration the manufacturing conditions and the operating conditions of the hydrogen separation membrane. For example, when TiOy is formed as a shielding layer in consideration of the use conditions at 400 DEG C, it may be formed to a thickness of 100 to 200 nm. When ZrOy is formed as a shielding layer, it may be formed to a thickness of 500 to 800 nm.
As described above, in the first step, the composition for coating can be applied to one end of the support, preferably the top or bottom.
Further, in the present invention, the support may adjust the angle with respect to the compression gas ejection direction. When the coating composition is spread by the compression gas by adjusting the angle of the support, the coating composition can be spread while flowing downward due to gravity. In particular, in the case of a coating composition having a high viscosity, coating efficiency can be improved. The angle of the support may be 90 [deg.] Perpendicular to the ground, or 15 [deg.] To 90 [deg.], Preferably 15 [deg.] To 75 [deg.].
The second step is a step of uniformly spreading the coating composition applied on a part or the whole of the support on the surface of the support in the first step by supplying the compressed gas in the axial direction of the support while moving.
The above-mentioned "supply of the compressed gas while moving" means that the compressed gas supplied to one point of the support is supplied to a position relatively different in the axial direction of the support over time as a relative conceptual movement. That is, the movement of the compressed gas can be performed by carrying out supply of the compressed gas while moving the compressed gas supplying means, or by moving and / or rotating the supporting body to move the supply point of the compressed gas relatively.
Preferably, the relative velocity of the compressed gas to the support may be greater than the rate at which the coating composition moves by gravity. Further, the relative movement direction of the compressed gas to the support may be the same as or opposite to the gravitational direction of the coating composition.
In the present invention, the compressed gas can be supplied and moved in the longitudinal direction from one end of the support, that is, from the upper end or the lower end. Further, the compressed gas can be supplied while rotating the support about the central axis. In addition, the compressed gas can be supplied while moving and / or rotating the support itself. The rotation speed of the support may be in the range of 10 to 1,000 rpm and may be suitably adjusted according to the pressure of the pressurized gas and / or the viscosity of the coating composition.
As used herein, the term "compressed gas" may refer to a gas having a pressure higher than atmospheric pressure. The compressed gas may be supplied using a compressed gas supply means capable of supplying a compressed gas to one point of the support. In this case, preferably, the compressed gas supply means or the support is moved and / or rotated to move the compressed gas Can supply. Further, the compressed gas may be supplied by using compressed gas supply means having an inner periphery corresponding to the outer periphery of the support and supplying the compressed gas to at least a part or all of the inner periphery. In this case, Or the support may be moved and / or rotated to supply the compressed gas while moving. However, when the compressed gas is supplied from all the inner periphery, the compressed gas supply means or the support may not be rotated separately. Specifically, the compressed gas may be supplied using an air gun or an air wiper.
In one embodiment, as shown in Fig. 1, the compressed gas is supplied while moving in the axial direction of the support by an air gun, and at the same time, the support itself is rotated by a motor to apply the coating composition applied on the support to the support It can be uniformly spread.
In another embodiment, as shown in Fig. 2, the compressed gas is supplied while being moved in the axial direction of the support by an air wiper, and at the same time, the support itself is rotated by the motor to apply the coating composition coated on the support to the compressed gas So that it can be uniformly spread.
In another embodiment, as shown in Fig. 3, the coating composition applied to the upper portion of the support may be uniformly spread by the compressed gas while being moved in the axial direction of the support, while the compressed gas is supplied at the entire inner periphery of the air wiper.
The compressed gas used in the present invention may be a gas which is non-reactive with respect to the components contained in the coating composition or may be a gas which is reactive. For example, the compressed gas may be an oxygen-free gas, specifically hydrogen, nitrogen, or a mixture thereof. For example, the compressed gas may be a gas containing oxygen, specifically air.
The compressed gas may be supplied at a pressure higher than atmospheric pressure, as described above, and preferably at a pressure of 2 to 20 bar.
In the third step, the support is dried and selectively heat-treated to form a coating layer.
In the third step, the drying can be carried out at room temperature, preferably at a temperature of 10 to 50 ° C. The support coated in the drying step may be rotated by 180 ° with respect to the direction of the compressed gas supply, that is, by being turned upside down, the coating layer may be dried while forming a more uniform layer.
In the third step, the heat treatment may be performed at a temperature of 500 to 800 ° C., preferably 600 to 700 ° C., for 30 minutes to 6 hours, preferably 1 to 3 hours, and the heat treatment temperature and time may be The material of the support and the composition for coating, and the intended use of the coated support finally prepared. In addition, the heat treatment may be performed under a suitable gas atmosphere according to the materials of the support and the coating composition to be used, and the intended use of the coated support to be finally produced. For example, when a ceramics separating layer coating is performed using a composition for coating containing zirconia powder, heat treatment can be performed under an oxygen atmosphere at a temperature of 650 ° C for 2 hours.
In addition, as described above, the method for manufacturing a cylindrical or tubular separator coated with the powder according to the present invention
A first step of applying a coating composition in which a powder is dispersed to a part or the whole of a cylindrical or tubular separation membrane;
A second step of supplying the coating composition while moving in the axial direction of the separation membrane to spread the coating composition on the surface of the separation membrane; And
And a third step of drying and selectively heat treating the separator.
The first to third steps of the method for manufacturing the cylindrical or tubular separation membrane coated with the powder correspond to the first to third steps of the method for manufacturing the cylindrical or tubular support coated with the powder, respectively.
Preferably, the separation membrane may be a hydrogen separation membrane, but is not limited thereto, and any cylindrical membrane or tubular membrane can be used.
Also, as described above, the manufacturing method of the cylindrical or tubular filter according to the present invention
A first step of applying a coating composition in which powder is dispersed to a part or the whole of a cylindrical or tubular filter support;
A second step of supplying the compressed gas while moving in the axial direction of the filter support to spread the coating composition on the filter support surface; And
And a third step of drying and selectively heat treating the filter support of the second step.
The first to third steps of the manufacturing method of the cylindrical or tubular filter correspond to the first to third steps of the manufacturing method of the cylindrical or tubular support coated with the powder, respectively.
Preferably, the filter may be a metal filter, a ceramic filter, or a composite filter of metal and ceramic. In the case of a metal filter, the filter support is a metal support and the powder dispersed in the coating composition may be a metal powder. In the case of a ceramic filter, the filter support may be a ceramic support and the powder dispersed in the coating composition may be a ceramic powder. In the case of a composite filter, the filter support may be a metal support or a ceramic support, and the powder dispersed in the coating composition may be a metal, a ceramic, or a composite powder thereof.
By appropriately adjusting the particle size of the powder dispersed in the coating composition used in the method of manufacturing a cylindrical or tubular filter according to the present invention, a coating layer having a pore size different from that of the inner filter support is formed, can do. The asymmetric filter of the multi-layer structure can be manufactured by repeating the first to third steps while varying the particle size of the powder dispersed in the coating composition used in the method of manufacturing a cylindrical or tubular filter according to the present invention have.
As described above, the present invention is an apparatus for coating powder on the surface of a cylindrical or tubular support,
A support fixing means for fixing the cylindrical or tubular support; And
And a pressurized gas supplying means for supplying the pressurized gas while moving in the axial direction of the support to a cylindrical or tubular support to which a coating composition in which the powder is dispersed is partially or entirely applied.
In one embodiment, the apparatus for coating powder on the surface of a cylindrical or tubular support according to the present invention may be a device for coating powder on the surface of a cylindrical or tubular separator. Further, as another embodiment, the apparatus for coating the powder on the surface of the cylindrical or tubular support according to the present invention may be a device for coating powder on the surface of a cylindrical or tubular filter support.
As described above, in the apparatus for coating powder on the surface of the cylindrical or tubular separation membrane according to the present invention,
A separator fixing means for fixing the cylindrical or tubular separator; And
And a pressurized gas supplying means for supplying the compressed gas while moving in the axial direction of the separator to a cylindrical or tubular separator coated with a part or all of the coating composition in which the powder is dispersed.
Further, as described above, the apparatus for coating powder on the surface of the cylindrical or tubular filter support according to the present invention,
A membrane-securing means for securing a cylindrical or tubular filter support; And
And a pressurized gas supplying means for supplying the compressed gas while moving in the axial direction of the filter support to a cylindrical or tubular filter support to which a coating composition in which the powder is dispersed is partially or entirely applied.
Preferably, the apparatus for coating powder on the surface of a cylindrical or tubular support according to the present invention comprises: a support rotating motor connected to the support holding means for rotating the support; A support angle adjusting motor connected to the support fixing means for adjusting the angle of the support; A pressurized gas supply means moving rail connected to the pressurized gas supply means for moving the pressurized gas supply means in the longitudinal direction from one end of the support; A compressor connected to the compressed gas supply means for rotating the compressed gas supply means, a motor for rotating the compressed gas supply means, or a combination thereof.
In one embodiment, the schematic structure of an apparatus for coating powder on the surface of a cylindrical or tubular support according to the present invention is as shown in Fig. That is, the apparatus for coating powder on the surface of the cylindrical or tubular support 1 according to the present invention comprises a support securing means 2 for securing a cylindrical or tubular support; A pressurized gas supplying means (3) for supplying compressed gas while moving in the axial direction of the support to a cylindrical or tubular support to which a coating composition in which powder is dispersed is partially or entirely applied; A support rotating motor (4) connected to the support holding means for rotating the support; A support angle adjusting motor (5) connected to the support fixing means for adjusting the angle of the support; A compressed gas supply means moving rail (6) connected to the compressed gas supply means for moving the compressed gas supply means in the longitudinal direction from one end of the support body; And a motor 7 for rotating the compressed gas supply means, connected to the compressed gas supply means, for rotating the compressed gas supply means.
The present invention can be applied to a cylindrical or tubular support having a cylindrical or tubular shape by applying a coating composition to a part or the whole of a cylindrical or tubular support and then feeding the compressed gas in the axial direction of the support while spreading the coating composition on the surface of the support. It is possible to form a uniform and thin coating layer on the outer surface with a simpler process, and it is not necessary to newly adjust the composition of the coating solution even if the coating process is repeated a plurality of times. In the case of the tubular type, the coating solution does not penetrate into the pores of the support, Can be formed thin.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 schematically illustrates the process of applying and coating a coating composition on a support by means of a compressed gas using an air gun according to one embodiment of the present invention. FIG.
2 is a schematic view illustrating a process of applying and coating a coating composition on a support by using a compressed air using an air wiper according to another embodiment of the present invention.
3 is a schematic view illustrating a process of applying and coating a coating composition on a support by using a compressed air by using an air wiper according to another embodiment of the present invention.
4 schematically shows a schematic structure of an apparatus for coating a powder on the surface of a cylindrical or tubular support according to the present invention.
5 shows a view of a tubular separator manufactured by the method according to the present invention.
6 shows the results of analysis of the surface of a coated membrane prepared by the method according to the present invention by scanning electron microscopy (SEM).
Hereinafter, the present invention will be described in more detail with reference to examples. However, these examples are for illustrative purposes only, and the scope of the present invention is not limited to these examples.
Example 1: Production of coating apparatus of the present invention
As shown in FIG. 4, an apparatus for coating powder on the surface of a cylindrical or tubular support according to an embodiment of the present invention was fabricated. At this time, an air gun (EXAIR, USA) was used as a compressed gas supplying means.
Example 2: Separation coating using coating apparatus of the present invention
The ceramic separating layer was coated on the outer surface of the tubular separator support using the coating apparatus manufactured in Example 1 above. As a tubular membrane support, a 0.5 μm grade porous filter (30 inches long, 1/2 inch in diameter) purchased from Mott was used. A 17 wt% YSZ paste (Yttria Stabilized Zirconia Paste) (YSZ average size 50 nm) was used as the coating composition.
Prior to the coating, the surface pores of the porous support were filled with a dispersion in which ZrO 2 powder having an average particle diameter of 5 μm was dispersed in acetone in an amount of 10 wt%, and then heat-treated at 650 ° C. for 2 hours in an oxygen atmosphere to perform pre- Respectively.
The support prepared as described above was attached to the support fixing means 2. The coating composition was applied to the entire outer surface of the support and the pressurized gas supplying means 3, that is, the air gun was moved from the upper end to the lower end at a speed of 1 m per minute while rotating the support at a speed of 150 rpm, The coating was applied while spreading. At this time, compressed air was supplied through the air gun at an air pressure of 75 kgf / cm 2.
Thereafter, the support was rotated 180 °, naturally dried, and then heat-treated at 650 ° C for 2 hours in an oxygen atmosphere to prepare a support having a coating layer.
FIG. 5 shows a state of the separator prepared as described above. 5, it can be seen that when coating by the method according to the present invention, the coating composition is evenly coated on the entire outer surface of the tubular support.
Experimental Example 1: Investigation of the surface morphology of the coated membrane according to the present invention
The surface of the coated membrane prepared in Example 2 was analyzed by scanning electron microscope (SEM). The results are shown in Fig.
Referring to FIG. 6, it can be seen that when coated by the method according to the present invention, a crack-free coating layer can be formed.
1: cylindrical or tubular support 2: supporting means for supporting
3: Compressed gas supplying means 4: Support rotating motor
5: Motor for adjusting the angle of the support 6: Compressed gas supply means
7: Compressed gas supply means rotating motor
Claims (26)
A second step of supplying the coating composition while moving in the axial direction of the support to spread the coating composition on the surface of the support; And
And a third step of drying and selectively heat treating the support. ≪ RTI ID = 0.0 > 11. < / RTI >
A second step of supplying the coating composition while moving in the axial direction of the separation membrane to spread the coating composition on the surface of the separation membrane; And
And a third step of drying and selectively heat treating the separator. The method of producing a cylindrical or tubular separator coated with a powder.
A second step of supplying the compressed gas while moving in the axial direction of the filter support to spread the coating composition on the filter support surface; And
And a third step of drying and selectively heat treating the filter support of the second step.
A support fixing means for fixing the cylindrical or tubular support; And
And a pressurized gas supplying means for supplying the pressurized gas while moving in the axial direction of the support to a cylindrical or tubular support to which a coating composition in which the powder is dispersed is partially or entirely applied.
A separator fixing means for fixing the cylindrical or tubular separator; And
And compressed gas supplying means for supplying the compressed gas while moving in the axial direction of the separator to a cylindrical or tubular separator coated with a part or all of the coating composition in which the powder is dispersed.
A membrane-securing means for securing a cylindrical or tubular filter support; And
And compressed gas supplying means for supplying the compressed gas while moving in the axial direction of the filter support to a cylindrical or tubular filter support to which a coating composition in which powder is dispersed is applied in part or in whole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150086185A KR101766866B1 (en) | 2015-06-17 | 2015-06-17 | Preparation method for cylindrical or tubular support coated with powders, and device therefor |
| PCT/KR2016/006435 WO2016204548A1 (en) | 2015-06-17 | 2016-06-17 | Method for manufacturing cylindrical or tubular support coated with powder and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150086185A KR101766866B1 (en) | 2015-06-17 | 2015-06-17 | Preparation method for cylindrical or tubular support coated with powders, and device therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20160149386A true KR20160149386A (en) | 2016-12-28 |
| KR101766866B1 KR101766866B1 (en) | 2017-08-14 |
Family
ID=57546657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150086185A KR101766866B1 (en) | 2015-06-17 | 2015-06-17 | Preparation method for cylindrical or tubular support coated with powders, and device therefor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101766866B1 (en) |
| WO (1) | WO2016204548A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220063531A (en) * | 2020-11-10 | 2022-05-17 | 한국에너지기술연구원 | Method for producing a crystallized laminated film by sequentially laminating powder particles on a cylindrical or tubular support |
| KR20220072309A (en) * | 2020-11-25 | 2022-06-02 | 한국과학기술연구원 | Hydrogen separation membrane and method of manufacturing hydrogen separation membrane by pressure permeation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950023447A (en) * | 1994-01-26 | 1995-08-18 | 박경팔 | Coating method |
| KR970008745B1 (en) * | 1994-12-03 | 1997-05-28 | Park Jung Hyun | Process for the preparation of ceramic tube |
| JPH10263453A (en) * | 1997-03-21 | 1998-10-06 | Sony Corp | Film formation and manufacture of magnetic recording medium and device used therefor |
| JP2006192393A (en) | 2005-01-14 | 2006-07-27 | Sharp Corp | Spin coater and spin-coating method |
| KR100898838B1 (en) * | 2008-06-09 | 2009-05-22 | 신광공업 주식회사 | 3 layers polyethylenes and polyurea coating device for steel tube and coating method |
| KR101141583B1 (en) * | 2011-12-15 | 2012-05-16 | 주식회사 구웅산업 | Iron pipe coating apparatus and method using epoxy powder, iron pipe coatin epoxy powder thereof |
-
2015
- 2015-06-17 KR KR1020150086185A patent/KR101766866B1/en active IP Right Grant
-
2016
- 2016-06-17 WO PCT/KR2016/006435 patent/WO2016204548A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220063531A (en) * | 2020-11-10 | 2022-05-17 | 한국에너지기술연구원 | Method for producing a crystallized laminated film by sequentially laminating powder particles on a cylindrical or tubular support |
| KR20220072309A (en) * | 2020-11-25 | 2022-06-02 | 한국과학기술연구원 | Hydrogen separation membrane and method of manufacturing hydrogen separation membrane by pressure permeation |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101766866B1 (en) | 2017-08-14 |
| WO2016204548A1 (en) | 2016-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5302957B2 (en) | Method for forming inorganic porous coating on porous support using specific pore forming agent | |
| JP4729755B2 (en) | Composite membrane, method for producing the same, and hydrogen separation membrane | |
| EP2079541B1 (en) | Process for producing sinter bonded porous metallic coatings | |
| KR101444969B1 (en) | A gas separation membrane system and method of making thereof using nanoscale metal material | |
| Pacheco Tanaka et al. | Fabrication of hydrogen‐permeable composite membranes packed with palladium nanoparticles | |
| JP5428014B2 (en) | Method for producing zeolite membrane | |
| JP5368981B2 (en) | Method for producing separation membrane porous body composite and method for forming separation membrane on surface of porous body | |
| JP2010528835A5 (en) | ||
| Wang et al. | Formation of continuous and highly permeable ZIF-8 membranes on porous alumina and zinc oxide hollow fibers | |
| Bosko et al. | NaA zeolite as an effective diffusion barrier in composite Pd/PSS membranes | |
| JP4753180B2 (en) | Hydrogen separation material and method for producing the same | |
| US11607650B2 (en) | Thin metal/ceramic hybrid membrane sheet and filter | |
| KR101766866B1 (en) | Preparation method for cylindrical or tubular support coated with powders, and device therefor | |
| CN109304099A (en) | Polymer-metal hydroxide nanowire composite film and preparation method thereof | |
| JP4177813B2 (en) | Tangential filtration membrane and method for producing the same | |
| CN102961973A (en) | Systems and methods for using a boehmite bond-coat with polyimide membranes for gas separation | |
| Ha et al. | The preparation and pore characteristics of an alumina coating on a diatomite-kaolin composite support layer | |
| JP2002066280A (en) | Gas separation filter and method for manufacturing the same | |
| KR100949075B1 (en) | A method for manufacturing Porous Ceramic film | |
| WO2013133771A1 (en) | Catalytic hollow fibers | |
| JP6366508B2 (en) | Method for producing composite metal gas separation membrane | |
| EP3878544B1 (en) | Carbon membrane for fluid separation use | |
| JP3117276B2 (en) | Hydrogen separation membrane | |
| Lee et al. | Preparation and characterization of nickel hollow fiber membrane | |
| EP1682252A1 (en) | Titania composite membrane for water/alcohol separation, and preparation thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |