WO2007007370A1 - 基材コーティング装置及び方法 - Google Patents
基材コーティング装置及び方法 Download PDFInfo
- Publication number
- WO2007007370A1 WO2007007370A1 PCT/JP2005/012555 JP2005012555W WO2007007370A1 WO 2007007370 A1 WO2007007370 A1 WO 2007007370A1 JP 2005012555 W JP2005012555 W JP 2005012555W WO 2007007370 A1 WO2007007370 A1 WO 2007007370A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slurry
- flow path
- air
- base material
- substrate coating
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 39
- 239000011248 coating agent Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 151
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims description 36
- 239000003054 catalyst Substances 0.000 claims description 21
- 238000012856 packing Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
-
- 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
- B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
-
- 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
- B05D2254/00—Tubes
- B05D2254/04—Applying the material on the interior of the tube
-
- 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
- B05D3/04—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 exposure to gases
-
- 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
- B05D3/04—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 exposure to gases
- B05D3/0406—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 exposure to gases the gas being air
- B05D3/042—Directing or stopping the fluid to be coated with air
-
- 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
Definitions
- the present invention relates to a substrate coating apparatus and method for extending a slurry in a large number of flow paths formed in parallel to a base material and covering the inner walls of the flow paths, and in particular, a catalyst base material for an exhaust gas purification catalyst. It is suitable for forming a catalyst by coating the inner wall of a Hercam channel formed in a monolith to be coated with a catalyst slurry.
- a wash coating method is known as a method for coating a catalyst slurry on the inner wall of a her cam channel formed on a monolith as a catalyst substrate.
- Patent Document 1 JP-A 63-51949
- Patent Document 2 Special Table 2002-506720
- FIG. 5 shows a coating apparatus using such a conventional washcoat method, and a storage section 52 formed on the upper end side of a monolith M in which two cam channels 51 are arranged to open up and down.
- Slurry S is supplied from the slurry supply device 53 to the flow path 51 by supplying the pressurized air from the upper end side or sucking the air from the lower end side. Make sure to cover the inner wall of!
- noble metals such as platinum may be contained in the slurry S, and only the necessary amount of slurry S used for coating the monolith M is supplied to the reservoir 52.
- the slurry supply nozzle 54 should be as thin as possible in order to strictly control the amount of force supply that requires a certain thickness.
- the slurry S is stored in a state where the supply nozzle 54 is raised (see FIG. 6 (a)).
- the amount of slurry S is large in the central part and small in the peripheral part. However, even if the slurry ends up flowing into the peripheral honeycomb passage 51A, the slurry still flows into the central honeycomb passage 51B.
- the h-cam channel 51A at the peripheral portion covers only half or less.
- the central camber channel 51B may be covered with more than half of the length, resulting in uneven coating length.
- the present invention provides a technique for uniformly covering all the flow paths formed in the base material without waste when supplying only the necessary amount of slurry for coating without excess or deficiency. It is a technical issue.
- the present invention is a substrate coating apparatus that extends the slurry supplied to one end of a substrate on which a large number of flow paths are formed in parallel, into the flow path by air pressure to cover the inner wall of the flow path.
- the slurry supply device for supplying a required amount of slurry to a slurry reservoir formed on an upper surface of a base material arranged so that both ends of the flow path are open to an upper surface and a bottom surface; And a liquid leveling mechanism for making the slurry level uniform before extending the slurry into the flow path.
- a slurry supply device for a slurry reservoir formed on the upper surface of a substrate disposed such that both ends of the flow path open to the upper surface and the bottom surface.
- the required amount of slurry is supplied from, and after the slurry liquid level is made uniform by the liquid leveling mechanism, the slurry is extended into the flow path.
- the slurry supplied also with the slurry supply device force is, at that time, the force that rises in a mountain shape in the slurry reservoir, before the slurry is extended into the flow path, by the liquid level equalization mechanism, for example,
- the surface of the slurry is made uniform by rotating the base material around its vertical vertical axis or vibrating the stored slurry.
- the slurry reservoir force in each flow path is set so that the slurry does not flow into each flow path before leveling the liquid level. It is only necessary to provide an atmospheric pressure adjusting mechanism that adjusts the gravity of the slurry to flow in and the atmospheric pressure in the flow path, and switches between blocking and extending the slurry into the flow path.
- the air pressure adjusting mechanism supplies air from the bottom surface side of the base material Z and sucks the air to apply positive pressure Z negative pressure in each flow path.
- a removable packing that seals the channel opening on the bottom side of the substrate, and the packing.
- An air handling device that sucks air in the channel with the kin open and supplies pressurized air from Z or the liquid surface side of the slurry reservoir is used.
- the problem can be realized with a simple configuration by allowing highly viscous slurry to flow uniformly into any flow path without waste.
- FIG. 1 is an explanatory view showing an example of a substrate coating apparatus according to the present invention
- FIG. 2 is a process diagram showing an example of a substrate coating method according to the present invention
- FIGS. 3 and 4 are other embodiments.
- FIG. 1 is an explanatory view showing an example of a substrate coating apparatus according to the present invention
- FIG. 2 is a process diagram showing an example of a substrate coating method according to the present invention
- FIGS. 3 and 4 are other embodiments.
- a substrate coating apparatus 1 shown in Fig. 1 is configured to inflow and extend catalyst slurry S by air pressure into a number of Hercom channels 2 ... formed in parallel with a monolith (catalyst substrate) M. It is intended to produce exhaust gas purifying catalyst by covering the inner wall 2w of the hard channel.
- the substrate coating apparatus 1 includes a main body 3 for fixing the monolith M so that both ends of the her cam channel 2 open to the top surface and the bottom surface, and an attachment 4 on the upper end of the monolith M.
- a slurry supply device 6 for supplying a required amount of slurry S to the slurry storage section 5 installed, a liquid level uniformizing mechanism 7 for making the slurry liquid surface uniform, and each flow path 2.
- Gravity of slurry S trying to flow into and flow path 2 ⁇ Equipped with a pressure adjustment mechanism 8 that switches between blocking and extending the flow of slurry S in the flow path 2 of the slurry S.
- the ceiling surface of the air chamber 9 whose internal pressure is controlled by the atmospheric pressure adjustment mechanism 8 is formed by a rotary table (base material rotation mechanism) 10 that supports the monolith M in a rotatable manner.
- the rotary table 10 has gear teeth 10a formed on the outer peripheral surface thereof engaged with the gear teeth 12a of the drive gear 12 driven by the motor 11, and can mount the monolith M so as to be able to rotate around its penetrating vertical axis.
- a liquid level homogenizing mechanism 7 is provided that makes the slurry one liquid level uniform by utilizing the centrifugal force.
- the monolith M is fitted into a through-hole 10b formed in the rotary table 10 so that the upper end of the her cam channel 2 is opened outside the air chamber 9 and the lower end is opened inside the air chamber 9. It is fixed in the inserted state.
- the attachment 4 serving as the slurry reservoir 5 is formed by a frustoconical surface having a lower end formed in the same shape and size as the upper end surface of the monolith M and fitted, and gradually spreading toward the upper end side. It is.
- the slurry supply device 6 is set to accurately measure and supply a predetermined amount of slurry S.
- the air pressure adjusting mechanism 8 is configured by using an air handling device 13 that supplies air Z, sucks air, and applies positive pressure Z negative pressure in each flow path 2... More specifically, It is equipped with an air pump 14 that performs air suction and discharge, and a switching valve CV that switches air supply Z suction to the air chamber 9.
- the switching valve CV is a three-position valve that switches and connects the suction side 14in and the discharge side 14out of the air pump 14 to the atmosphere opening port 15 and the air supply / exhaust pipe 16, and the atmosphere opening port 15 at the first position P.
- the air sucked from the air is supplied to the air chamber 9 to apply a positive pressure to the flow path 2..., and the air supply / exhaust pipe 16 is shut off at the second position P to maintain the internal pressure of the air chamber 9.
- the air in the air chamber 9 is forcibly discharged and negative pressure is applied to the flow path 2.
- a relief valve 18 is installed in the pipe 17 branched from the supply / exhaust pipe 16, and is released when the internal pressure of the air channel exceeds the set pressure, allowing the internal air to escape and maintaining the internal pressure at the set pressure. It is made to do.
- the slurry supply device 6 is used to cover the slurry S over the entire length of all of the hard cam channels 2 to the slurry storage section 5.
- the minimum required amount of slurry S to be supplied is supplied, but the slurry S has a certain degree of viscosity, so that the slurry reservoir 5 is raised.
- the switching valve CV of the atmospheric pressure adjusting mechanism 8 is set to the first position P, and air is supplied into the air chamber 9 so that the slurry S does not flow into the hard cam channel 2. Apply positive pressure to each flow path 2 to a certain extent, and then switch the switching valve CV to the second position P.
- the air in the air chamber 9 is sucked by setting the switching valve CV of the atmospheric pressure adjusting mechanism 8 to the third position P, as shown in FIG. 2 (c).
- Slurry S is allowed to flow into the her cam channel 2.
- the slurry S flows into each of the flow paths 2 in the same manner, and all the slurry S stored in the storage section 5 flows into the respective flow paths. At that time, as shown in FIG. 2 (d), the slurry S is clogged in the respective flow paths 2 by the same length.
- the supply amount to the slurry reservoir 5 is adjusted according to the coating length. That's fine.
- FIG. 3 shows another embodiment of the present invention.
- a vibration is applied rather than a centrifugal force. Note that portions overlapping those in FIG. 1 are denoted by the same reference numerals and detailed description thereof is omitted.
- the internal pressure is controlled by the atmospheric pressure adjustment mechanism 8.
- a table 23 for fixing the monolith M is provided on the ceiling surface of the apparatus main body 22 in which the air chamber 9 is formed so that both ends of the her cam channel 2.
- the liquid level uniformity mechanism 7 is composed of a vibrator (oscillation mechanism) 24 attached to the outer peripheral surface of the attachment 4 attached to the upper end of the monolith M, and the slurry S stored in a raised state is vibrated at low frequency.
- the liquid level is made uniform by vibrating with high frequency vibration or ultrasonic vibration.
- FIG. 4 shows still another embodiment.
- the atmospheric pressure can be adjusted without supplying air to the her cam channel 2.
- Parts common to those in FIG. 1 are denoted by the same reference numerals and detailed description thereof is omitted.
- the base material coating apparatus 31 of this example has an detachable packing 32 that seals the bottom side opening of the her cam channel 2 as the atmospheric pressure adjusting mechanism 8, and the packing 32 is opened.
- a air handling device 34 equipped with an air pump 33 for sucking the air in the her cam channel 2... Through the air chamber 9 is used!
- an elevating base 35 disposed so as to be movable up and down in the air chamber 9 is rotatably attached to an elevating shaft 36, and a soft rubber is formed on the surface side of the base 35 via a sponge-like elastic body 37. 38 is provided, and this soft rubber 38 seals the opening of the her cam channel 2.
- the air handling device is used in any slurry extension process.
- the present invention is not limited to this, and the liquid level side of the slurry reservoir 5 is described. Whether you are supplying force-pressurized air or both.
- the present invention is not limited to this, and the slurry is coated on the inner walls of a large number of flow paths formed in parallel on the substrate. If there is, it can be applied to various uses.
- the slurry is allowed to flow into each flow path.
- the same amount of slurry flows into the channel, and all the channels can be coated uniformly with the same length of slurry, and at the same time, even when the slurry is coated over the entire length of the channel No waste! / ⁇ and ⁇ ⁇ Has a very good effect.
- the present invention can be applied to an application in which slurry is extended in a large number of flow paths formed in parallel to a base material to cover the inner walls of the flow paths. This is suitable for applications in which a catalyst slurry is formed on the inner wall of a honeycomb flow path formed in a monolith.
- FIG. 1 is an explanatory view showing an example of a substrate coating apparatus according to the present invention.
- FIG. 2 is an explanatory view showing an example of a substrate coating method according to the present invention.
- FIG. 3 is an explanatory view showing another embodiment.
- FIG. 4 is an explanatory view showing another embodiment.
- FIG. 5 is an explanatory view showing a conventional device.
- FIG. 6 is an explanatory diagram showing a conventional method.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/012555 WO2007007370A1 (ja) | 2005-07-07 | 2005-07-07 | 基材コーティング装置及び方法 |
US11/917,409 US8302557B2 (en) | 2005-07-07 | 2005-07-07 | Device and method for coating base material |
CN2005800510022A CN101218039B (zh) | 2005-07-07 | 2005-07-07 | 基体材料涂敷装置及方法 |
EP05758332A EP1900442B1 (en) | 2005-07-07 | 2005-07-07 | Device and method for coating base material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/012555 WO2007007370A1 (ja) | 2005-07-07 | 2005-07-07 | 基材コーティング装置及び方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007007370A1 true WO2007007370A1 (ja) | 2007-01-18 |
Family
ID=37636778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/012555 WO2007007370A1 (ja) | 2005-07-07 | 2005-07-07 | 基材コーティング装置及び方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8302557B2 (ja) |
EP (1) | EP1900442B1 (ja) |
CN (1) | CN101218039B (ja) |
WO (1) | WO2007007370A1 (ja) |
Cited By (10)
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JP2010017666A (ja) * | 2008-07-11 | 2010-01-28 | Tokyo Roki Co Ltd | 排ガス浄化用触媒 |
WO2010114132A1 (ja) * | 2009-04-03 | 2010-10-07 | 株式会社 キャタラー | 排ガス浄化用触媒の製造方法及び装置並びにそれに使用するノズル |
JP2014076415A (ja) * | 2012-10-09 | 2014-05-01 | Cataler Corp | スラリー供給ノズルとそれを用いた排ガス浄化用触媒の製造装置および製造方法 |
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DE202021106828U1 (de) | 2021-12-15 | 2023-03-24 | Umicore Ag & Co. Kg | Beschichtungskammer |
DE202022000455U1 (de) | 2022-02-22 | 2022-03-02 | Umicore Ag & Co. Kg | Beschichtungshut |
EP4299194A1 (en) | 2022-06-29 | 2024-01-03 | Umicore AG & Co. KG | Coating apparatus |
DE102022121499A1 (de) | 2022-08-25 | 2024-03-07 | Umicore Ag & Co. Kg | Applikator zum Auftragen von Beschichtungsmedium auf Substrate |
DE202023100970U1 (de) | 2023-03-01 | 2023-03-16 | Umicore Ag & Co. Kg | Beschichtungsvorrichtung |
DE202023103234U1 (de) | 2023-06-13 | 2023-06-26 | Umicore Ag & Co. Kg | Beschichtungsvorrichtung |
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JP2020527100A (ja) * | 2017-07-06 | 2020-09-03 | ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフトUmicore AG & Co.KG | ウォッシュコート懸濁液の非接触レベリング |
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Also Published As
Publication number | Publication date |
---|---|
EP1900442B1 (en) | 2013-01-09 |
CN101218039B (zh) | 2010-08-04 |
US8302557B2 (en) | 2012-11-06 |
EP1900442A4 (en) | 2010-11-10 |
EP1900442A1 (en) | 2008-03-19 |
US20090155475A1 (en) | 2009-06-18 |
CN101218039A (zh) | 2008-07-09 |
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