WO2023090295A1 - 排ガス浄化触媒装置の製造方法 - Google Patents
排ガス浄化触媒装置の製造方法 Download PDFInfo
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- WO2023090295A1 WO2023090295A1 PCT/JP2022/042263 JP2022042263W WO2023090295A1 WO 2023090295 A1 WO2023090295 A1 WO 2023090295A1 JP 2022042263 W JP2022042263 W JP 2022042263W WO 2023090295 A1 WO2023090295 A1 WO 2023090295A1
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- coating liquid
- station
- suction
- substrate
- coating
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- 239000003054 catalyst Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 46
- 238000000746 purification Methods 0.000 title claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 216
- 239000011248 coating agent Substances 0.000 claims abstract description 212
- 239000007788 liquid Substances 0.000 claims abstract description 167
- 239000000758 substrate Substances 0.000 claims abstract description 104
- 210000002421 cell wall Anatomy 0.000 claims abstract description 31
- 210000004027 cell Anatomy 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 70
- 239000011247 coating layer Substances 0.000 claims description 21
- 230000003197 catalytic effect Effects 0.000 claims description 10
- 239000010410 layer Substances 0.000 description 8
- 238000003754 machining Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000009789 rate limiting process Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
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- 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
-
- 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
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
- B05C7/04—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work the liquid or other fluent material flowing or being moved through the work; the work being filled with liquid or other fluent material and emptied
-
- 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
- B05D3/0493—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 using vacuum
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Definitions
- the present invention relates to a method for manufacturing an exhaust gas purification catalyst device.
- Exhaust gas emitted from internal combustion engines such as automobile engines is released into the atmosphere after being purified by an exhaust gas purification catalyst device installed in the exhaust system.
- This exhaust gas purifying catalytic device has a structure including, for example, a honeycomb substrate having a plurality of cell flow paths partitioned by partition walls, and a catalyst coat layer formed on and/or in the partition walls of the honeycomb substrate. have.
- Such an exhaust gas purifying catalytic device is manufactured, for example, by coating a honeycomb base material with a coating liquid containing the raw material components of the catalyst coating layer and then firing the coating liquid.
- the honeycomb base material is coated with the coating liquid by placing the coating liquid on one end face of the honeycomb base material and sucking it from the opposite end face.
- a frame-shaped storage jig capable of storing the coating liquid is attached to the first end face of the honeycomb base material, and the coating liquid is stored on the first end face,
- the pressure on the side of the second end face opposite to the first end face relatively low with respect to the pressure on the side of the first end face and causing the coating liquid to flow from the first end face to the second end face , describes coating a honeycomb substrate with a coating solution.
- Industrial production of exhaust gas purifying catalyst devices is usually carried out by an automatic processing system.
- an automatic processing system a plurality of processing stations are provided from the upstream side to the downstream side, and processing is performed sequentially.
- the processing time at each processing station does not necessarily match.
- the processing at the processing station requiring the longest processing time becomes the rate-determining step of the entire process.
- Patent Literature 2 discloses a conveying device configured by conveying means for conveying a workpiece (object to be processed) along a conveying line and processing means provided in the vicinity of the conveying line. It is described that an overtaking auxiliary means is provided for gripping and raising the work so that the succeeding work overtakes the preceding work and is conveyed first.
- the suction process When the honeycomb base material is coated with the coating liquid by placing the coating liquid on one end face of the honeycomb base material and sucking it from the opposite end face, the suction process often becomes rate-determining.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to coat the honeycomb substrate with the coating liquid, place the coating liquid on one end surface of the honeycomb substrate, and vice versa.
- an exhaust gas purifying catalyst device capable of increasing the speed of the entire process while securing a predetermined suction time when suction is performed from a side end face.
- the present invention is as follows.
- step (C) the time for sucking the substrate after the coating liquid is placed from the lower end surface is less than the time required for the coating for forming the catalyst coating layer on the upper end surface of the substrate in the step (A).
- the step (B) is (B1) transferring the base material after mounting the coating liquid from the coating liquid mounting station to a branching station; and (B2) transferring the base material after mounting the coating liquid from the branching station.
- step (B2) transferring the substrate on which the coating liquid has been placed to one of the two or more suction devices of the suction station that is free, A method for manufacturing an exhaust gas purification catalyst device.
- the steps (A) to (D) are performed such that the time from the end of the step (A) to the start of the step (C) is within a predetermined range.
- method for manufacturing an exhaust gas purifying catalyst device ⁇ Aspect 3>> The exhaust gas purifying catalyst according to Aspect 2, wherein in the step (A), the coating liquid for forming the catalyst coat layer is placed on the upper end surface of the base material after waiting for a predetermined time. Method of manufacturing the device.
- ⁇ Aspect 4>> The step (D) is (D1) removing the base material coated with the coating liquid from the suction station and transferring it to the branching station; and (D2) transferring the base material coated with the coating liquid from the branching station to the next process.
- a honeycomb substrate having a plurality of cell channels partitioned by cell walls is held so that the flow direction of the cell channels is vertical, and a catalyst coating layer is formed on the upper end surface of the substrate.
- a coating liquid placing station for placing the forming coating liquid; Two or more suction devices for sucking the substrate after the coating liquid is placed from the lower end surface and coating the coating liquid on one or more cell walls and in the cell walls of the substrate.
- the honeycomb substrate when the honeycomb substrate is coated with the coating liquid by placing the coating liquid on one end surface of the honeycomb substrate and sucking it from the opposite end surface, the predetermined suction time is ensured, the speed of the entire process can be increased, and a high-quality coating layer can be obtained.
- FIG. 1 is a conceptual diagram showing an outline of a method for manufacturing an exhaust gas purifying catalytic device of Embodiment 1.
- FIG. 2 is a conceptual diagram showing an overview of the manufacturing method of the exhaust gas purifying catalytic device of the second embodiment.
- the method for manufacturing an exhaust gas purifying catalyst device of the present invention comprises: (A) In a coating liquid placing station, a honeycomb base material having a plurality of cell flow paths partitioned by cell walls is held so that the flow direction of the cell flow paths is vertical. placing a coating solution for forming a catalyst coating layer on the upper end surface; (B) transferring the base material after mounting the coating liquid from the coating liquid mounting station to a suction station; (C) At the suction station, the base material after the coating liquid is placed is sucked from the lower end surface, and the coating liquid is coated on one or more of the cell walls and the cell walls of the base material.
- step (C) the time for sucking the substrate after the coating liquid is placed from the lower end surface is less than the time required for the coating for forming the catalyst coating layer on the upper end surface of the substrate in the step (A).
- the step (B) is (B1) transferring the base material after mounting the coating liquid from the coating liquid mounting station to a branching station; and (B2) transferring the base material after mounting the coating liquid from the branching station. transferring to the aspiration station;
- step (B2) transferring the substrate on which the coating liquid has been placed to one of the two or more suction devices of the suction station that is free, A method for manufacturing an exhaust gas purifying catalytic device.
- the coating liquid placement station may be equipped with a coating device.
- This coating apparatus is, for example, a coating apparatus capable of placing a coating liquid on the upper end surface of a honeycomb substrate held so that the flow direction of cell flow paths is vertical. good.
- the mounting jig has, for example, a frame shape, and can be detachably arranged on the upper end surface of the honeycomb substrate. It may be one that can form a placement portion.
- the coating liquid supply device may have, for example, the function of supplying and placing the coating liquid on the placement section.
- the coating liquid feeder may be, for example, a shower-type feeder or a spray-type feeder.
- the suction station is a processing station for sucking the honeycomb substrate after the coating liquid is placed from the lower end face and coating the coating liquid on one or more of the cell walls and inside the cell walls of the substrate.
- a suction station includes two or more suction devices.
- Each suction device may have at least a vacuum channel and a vacuum jig for connecting the vacuum channel and the bottom surface of the honeycomb substrate.
- the suction jig can be detachably attached to the lower end surface of the honeycomb base material, and the base material with the suction jig attached thereto is subjected to reduced pressure near the lower end of the cell channel.
- the vacuum channel of the suction device may be connected to a vacuum generator, the vacuum channels of two or more suction devices may each be connected to its own vacuum generator, or the vacuum channels may be connected to two or more vacuum channels.
- One vacuum generator may be shared.
- two or more reduced pressure channels may be divided into groups, each group of reduced pressure channels sharing one reduced pressure generator.
- the reduced pressure generator may be, for example, a vacuum pump or the like.
- the number of suction devices included in the suction station may be 2 or more, 3 or more, or 4 or more.
- the number of suction devices may be 8 or less, or 6 or less.
- the number of suction devices included in the suction station is typically between 2 and 8, or between 3 and 6.
- the method for manufacturing an exhaust gas purification catalyst device of the present invention includes: (A) In a coating liquid placing station, a honeycomb base material having a plurality of cell flow paths partitioned by cell walls is held so that the flow direction of the cell flow paths is vertical.
- the time for sucking the substrate after the coating liquid is placed from the lower end surface is less than the time required for the coating for forming the catalyst coating layer on the upper end surface of the substrate in the step (A).
- the step (B) is (B1) transferring the base material after mounting the coating liquid from the coating liquid mounting station to a branching station (first transfer step); and (B2) transferring the base material after mounting the coating liquid.
- step (B2) transferring the substrate on which the coating liquid has been placed to one of the two or more suction devices of the suction station that is free, A method for manufacturing an exhaust gas purifying catalytic device.
- the time for sucking the honeycomb base material after the coating liquid is placed from the lower end face is equal to (A) the coating liquid placement step.
- the advantageous effects of the present invention are exhibited.
- the suction time in the (C) suction coating step is twice or more, three times or more, or four times or more the coating liquid placement time in the (A) coating liquid placement step, The effects of the present invention are particularly advantageous.
- the suction time in the suction coating step may be 20 times or less, or 15 times or less, the coating liquid placement time in the (A) coating liquid placement step.
- the step of carrying in the suction station is (B1) a first transfer step of transferring the honeycomb base material after the coating liquid has been placed from the coating liquid placing station to the branching station; (B2) a second transfer step of transferring the base material after the coating liquid has been placed from the branching station to the suction station; (B2) In the second transfer step, the substrate after the coating liquid has been placed is transferred to one of the two or more suction devices of the suction station that is free.
- the substrate in the coating liquid placement step By placing the coating liquid on the upper end face of the material after waiting for a predetermined period of time, the time from placement of the coating liquid to the start of suction can be made constant.
- the number of suction devices in the suction station is two or more, and A branch station is provided between the coating liquid placing station and the suction station, transferring the substrate after the coating liquid has been placed to any one of the two or more suction devices of the suction station that is free, and if necessary, (A) coating the substrate;
- a branch station is provided between the coating liquid placing station and the suction station, transferring the substrate after the coating liquid has been placed to any one of the two or more suction devices of the suction station that is free, and if necessary, (A) coating the substrate;
- the base material after coating with the coating liquid may be directly transferred from the suction station to the next process, or may be returned from the suction station to the branching station and then transferred from the branching station to the next process.
- the (D) suction station carry-out step in which the substrate after coating with the coating liquid is once returned from the suction station to the branching station and transferred from the branching station to the next step, (D1) A third transfer step in which the base material coated with the coating liquid is taken out from the suction station and transferred to the branching station, and (D2) The base material coated with the coating liquid is transferred from the branching station to the next process. and a fourth transfer step.
- the time from (A) the end of the coating liquid placement step to (C) the start of the suction coating step is within a predetermined range.
- steps (A) to (D) can be performed.
- the difference between the time from A) the end of the coating liquid placement step to the start of the (C) suction coating step from the predetermined time is within ⁇ 50%, ⁇ Within 40%, within ⁇ 30%, within ⁇ 20%, within ⁇ 10%, within ⁇ 5%, within ⁇ 3%, within ⁇ 1%, within ⁇ 0.5%, within ⁇ 0.3%, or ⁇ It can be within 0.1%.
- the next step of the method for manufacturing an exhaust gas purifying catalyst device of the present invention is any step such as, for example, a firing step, a step of forming a second catalyst coat layer, a step of supporting a catalyst component, a condition adjustment step, and a casing loading step. you can
- a honeycomb base material having a plurality of cell flow paths partitioned by cell walls is held so that the flow direction of the cell flow paths is vertical, and a coating for forming a catalyst coating layer is applied to the upper end surface of the base material.
- a coating liquid placing station for placing the liquid;
- a suction station, and a branch station for feeding the substrate after the coating liquid has been placed to any of the two or more suction devices included in the suction station An apparatus for manufacturing an exhaust gas purifying catalytic device is provided.
- FIG. 1 shows a conceptual diagram for explaining the outline of the manufacturing method of the exhaust gas purifying catalytic device of Embodiment 1. As shown in FIG. 1
- the manufacturing method of FIG. 1 includes a coating liquid placing station, a branching station, and a suction station.
- the suction station has three suction devices (suction device (1), suction device (2) and suction device (3)) and the diverting station has one redirecting device.
- the substrate after the coating liquid placement step in the coating liquid placement station is transferred to the branching station by the first transfer step.
- the diverting device changes the traveling direction of the substrate to the direction of the suction device (1), and the substrate is transferred to the suction device (1). 1) to perform the (C) suction coating process.
- the direction is changed.
- the apparatus changes the traveling direction of the substrate to the direction of the suction device (3), the substrate is transferred to the suction device (3), and (C) the suction coating step is performed.
- the substrate coated with the coating liquid by any one of the suction devices (1) to (3) is transferred to the direction changing device in the (D1) third transfer step, (D2) Transferred to the next step by the fourth transfer step.
- FIG. 1 A conceptual diagram for explaining the outline of the manufacturing method of the exhaust gas purifying catalyst device of Embodiment 2 is shown in FIG.
- the manufacturing method of FIG. 1 includes a coating liquid placing station, a branching station, and a suction station.
- the aspiration station has three aspiration devices (aspiration device (1), aspiration device (2) and aspiration device (3)) and the diverting station has three diversions equal to the number of aspiration devices in the aspiration station. It has devices (Redirecting device (1), Reversing device (2) and Reversing device (3)).
- the base material after the coating liquid placement step in the coating liquid placement station is transferred to the branch station by the first transfer step.
- the substrate first reaches the diverting device (1).
- the direction changing device (1) changes the traveling direction of the substrate to the direction of the suction device (1), and the substrate is transferred to the suction device (1).
- (C) a suction coating step is performed.
- the redirecting device (1) when the substrate reaches the redirecting device (1), in the suction device (1), if the (C) suction coating step for another substrate has been performed, the redirecting device (1) does not change the direction of travel of the substrate, the substrate is transferred to the turning device (2). At this time, if the suction device (2) is vacant, the direction changing device (2) changes the traveling direction of the substrate to the direction of the suction device (2), and the substrate is transferred to the suction device (2). Then, (C) a suction coating step is performed.
- the direction changing device (2) when the substrate reaches the direction changing device (2), if the suction device (2) is performing the (C) suction coating step for another substrate, the direction changing device (2 ) does not change the direction of travel of the substrate, and the substrate is transferred to the turning device (3). Then, the direction changing device (3) changes the traveling direction of the substrate to the direction of the suction device (3), the substrate is transferred to the suction device (3), and (C) the suction coating step is performed.
- the base material coated with the coating liquid by the suction device (1) is transferred to the direction changing device (1) by the (D1) third transfer step. This base material is further transferred to the next step via the direction changing device (2) and the direction changing device (3) in the (D2) fourth transfer step.
- the base material coated with the coating liquid by the suction device (2) is transferred to the direction changing device (2) by the (D1) third transfer step.
- This base material is further transferred to the next step through the direction changing device (3) in the (D2) fourth transfer step.
- the base material coated with the coating liquid by the suction device (3) is transferred to the direction changing device (3) by the (D1) third transfer step.
- This base material is further transferred to the next step by the (D2) fourth transfer step.
- the turning device (1) comprises: A function to send the substrate transferred from the coating liquid station toward the suction device (1) or the direction changing device (2), and a function to transfer the substrate transferred from the suction device (1) to the direction changing device ( 2) has the function of sending out towards
- the turning device (2) is A function of sending the substrate transferred from the coating liquid station through the direction changing device (1) toward the suction device (2) or the direction changing device (3), and from the suction device (2) It has a function of sending out the transferred substrate toward the direction changing device (3)
- the turning device (3) is A function to feed the substrate transferred from the coating liquid station through the direction changing devices (1) and (2) toward the suction device (3), and the substrate transferred from the suction device (3) to the next process.
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Abstract
Description
(B)前記塗工液載置後の基材を、前記塗工液載置ステーションから吸引ステーションまで移送すること、
(C)前記吸引ステーションにおいて、前記塗工液載置後の基材を下端面から吸引して、前記塗工液を前記基材のセル壁上及びセル壁中の1つ以上にコートすること、並びに
(D)前記塗工液コート後の基材を、前記吸引ステーションから取り出して、次工程まで移送すること
を含み、
前記工程(C)において、前記塗工液載置後の基材を下端面から吸引するための時間が、前記工程(A)において、前記基材の上端面上に触媒コート層形成用塗工液を載置するための時間よりも長い、排ガス浄化触媒装置の製造方法であって、
前記吸引ステーションが、2個以上の吸引装置を含み、
前記工程(B)が、
(B1)前記塗工液載置後の基材を、前記塗工液載置ステーションから分岐ステーションまで移送すること、及び
(B2)前記塗工液載置後の基材を、前記分岐ステーションから前記吸引ステーションまで移送すること
を含み、
前記工程(B2)において、前記塗工液載置後の基材を、前記吸引ステーションの前記2個以上の吸引装置のうちの空いている吸引装置のいずれかに移送する、
排ガス浄化触媒装置の製造方法。
《態様2》前記工程(A)の終了時から前記工程(C)の開始時までの時間が所定の範囲内となるように、前記工程(A)~(D)を行う、態様1に記載の排ガス浄化触媒装置の製造方法。
《態様3》前記工程(A)において、前記基材の上端面上への前記触媒コート層形成用塗工液の載置を、所定時間の待機の後に行う、態様2に記載の排ガス浄化触媒装置の製造方法。
《態様4》前記工程(D)が、
(D1)前記塗工液コート後の基材を、前記吸引ステーションから取り出して、前記分岐ステーションまで移送すること、及び
(D2)前記塗工液コート後の基材を、前記分岐ステーションから次工程まで移送すること
を含む、態様1~3のいずれか一項に記載の排ガス浄化触媒装置の製造方法。
《態様5》前記吸引ステーションに含まれる前記吸引装置の数が、3個以上6個以下である、態様1~4のいずれか一項に記載の排ガス浄化触媒装置の製造方法。
《態様6》セル壁によって区画された複数のセル流路を有するハニカム基材を、前記セル流路の流路方向が鉛直となるように保持し、前記基材の上端面上に触媒コート層形成用塗工液を載置するための塗工液載置ステーション、
前記塗工液載置後の基材を、下端面から吸引して、前記塗工液を前記基材のセル壁上及びセル壁中の1つ以上にコートするための吸引装置を2個以上含む、吸引ステーション、並びに
前記塗工液載置後の基材を、前記吸引ステーションに含まれる前記2個以上の吸引装置のいずれかに送り出すための分岐ステーション
を含む、
排ガス浄化触媒装置の製造装置。
(A)塗工液載置ステーションにおいて、セル壁によって区画された複数のセル流路を有するハニカム基材を、前記セル流路の流路方向が鉛直となるように保持し、前記基材の上端面上に触媒コート層形成用塗工液を載置すること、
(B)前記塗工液載置後の基材を、前記塗工液載置ステーションから吸引ステーションまで移送すること、
(C)前記吸引ステーションにおいて、前記塗工液載置後の基材を下端面から吸引して、前記塗工液を前記基材のセル壁上及びセル壁中の1つ以上にコートすること、並びに
(D)前記塗工液コート後の基材を、前記吸引ステーションから取り出して、次工程まで移送すること
を含み、
前記工程(C)において、前記塗工液載置後の基材を下端面から吸引するための時間が、前記工程(A)において、前記基材の上端面上に触媒コート層形成用塗工液を載置するための時間よりも長い、排ガス浄化触媒装置の製造方法であって、
前記吸引ステーションが、2個以上の吸引装置を含み、
前記工程(B)が、
(B1)前記塗工液載置後の基材を、前記塗工液載置ステーションから分岐ステーションまで移送すること、及び
(B2)前記塗工液載置後の基材を、前記分岐ステーションから前記吸引ステーションまで移送すること
を含み、
前記工程(B2)において、前記塗工液載置後の基材を、前記吸引ステーションの前記2個以上の吸引装置のうちの空いている吸引装置のいずれかに移送する、
排ガス浄化触媒装置の製造方法である。
本発明の排ガス浄化触媒装置の製造方法に適用される基材は、セル壁によって区画された複数のセル流路を有するハニカム基材である。このハニカム基材は、例えば、コージェライト、SiC、ステンレス鋼、無機酸化物粒子等の材料から構成されている、例えば、ストレートフロー型又はウォールフロー型のモノリスハニカム基材であってよい。
塗工液載置ステーションは、セル壁によって区画された複数のセル流路を有するハニカム基材を、前記セル流路の流路方向が鉛直となるように保持し、前記基材の上端面上に触媒コート層形成用塗工液を載置するための加工ステーションである。
吸引ステーションは、塗工液載置後のハニカム基材を下端面から吸引して、塗工液を基材のセル壁上及びセル壁中の1つ以上にコートするための加工ステーションである。
分岐ステーションは、塗工液載置ステーションから移送されてきた、上端面上に触媒コート層形成用塗工液が載置されたハニカム基材を受け入れ、吸引ステーション中のいずれかの吸引装置に向けて送り出す機能を有する。
上述したとおり、本発明の排ガス浄化触媒装置の製造方法は、
(A)塗工液載置ステーションにおいて、セル壁によって区画された複数のセル流路を有するハニカム基材を、前記セル流路の流路方向が鉛直となるように保持し、前記基材の上端面上に触媒コート層形成用塗工液を載置すること(塗工液載置工程)、
(B)前記塗工液載置後の基材を、前記塗工液載置ステーションから吸引ステーションまで移送すること(吸引ステーション搬入工程)、
(C)前記吸引ステーションにおいて、前記塗工液載置後の基材を下端面から吸引して、前記塗工液を前記基材のセル壁上及びセル壁中の1つ以上にコートすること(吸引コート工程)、並びに
(D)前記塗工液コート後の基材を、前記吸引ステーションから取り出して、次工程まで移送すること(吸引ステーション搬出工程)
を含み、
前記工程(C)において、前記塗工液載置後の基材を下端面から吸引するための時間が、前記工程(A)において、前記基材の上端面上に触媒コート層形成用塗工液を載置するための時間よりも長い、排ガス浄化触媒装置の製造方法であって、
前記吸引ステーションが、2個以上の吸引装置を含み、
前記工程(B)が、
(B1)前記塗工液載置後の基材を、前記塗工液載置ステーションから分岐ステーションまで移送すること(第1移送工程)、及び
(B2)前記塗工液載置後の基材を、前記分岐ステーションから前記吸引ステーションまで移送すること(第2移送工程)
を含み、
前記工程(B2)において、前記塗工液載置後の基材を、前記吸引ステーションの前記2個以上の吸引装置のうちの空いている吸引装置のいずれかに移送する、
排ガス浄化触媒装置の製造方法である。
(B1)塗工液載置後のハニカム基材を、塗工液載置ステーションから分岐ステーションまで移送する第1移送工程と、
(B2)塗工液載置後の基材を、分岐ステーションから吸引ステーションまで移送する第2移送工程と
を含み、
(B2)第2移送工程において、塗工液載置後の基材を、吸引ステーションの2個以上の吸引装置のうちの空いている吸引装置のいずれかに移送する
ことを特徴とする。
吸引ステーションの吸引装置の数を2個以上とし、かつ、
塗工液載置ステーションと吸引ステーションとの間に、分岐ステーションを設けて、
塗工液載置後の基材を、吸引ステーションの前記2個以上の吸引装置のうちの空いている吸引装置のいずれかに移送すること、及び
必要に応じて、(A)塗工液載置工程における、基材の上端面上への塗工液の載置を、所定時間の待機の後に行うこと
によって、塗工液の載置から吸引開始までの時間を一定の範囲内に制御して、得られるコート層の品質のばらつきを抑制しつつ、工程全体の速度を速くすることができる。
(D1)塗工液コート後の基材を、吸引ステーションから取り出して、分岐ステーションまで移送する第3移送工程、及び
(D2)塗工液コート後の基材を、分岐ステーションから次工程まで移送する第4移送工程
を含んでいてよい。
本発明の別の観点では、
セル壁によって区画された複数のセル流路を有するハニカム基材を、前記セル流路の流路方向が鉛直となるように保持し、前記基材の上端面上に触媒コート層形成用塗工液を載置するための塗工液載置ステーション、
前記塗工液載置後の基材を、下端面から吸引して、前記塗工液を前記基材のセル壁上及びセル壁中の1つ以上にコートするための吸引装置を2個以上含む、吸引ステーション、並びに
前記塗工液載置後の基材を、前記吸引ステーションに含まれる前記2個以上の吸引装置のいずれかに送り出すための分岐ステーション
を含む、
排ガス浄化触媒装置の製造装置が提供される。
以下、具体的な実施形態を示して、本発明の排ガス浄化触媒装置の製造について詳細に説明する。しかしながら、本発明は、以下に記載の実施形態に限定されない。
実施形態1の排ガス浄化触媒装置の製造方法の概要を説明するための概念図を、図1に示した。
塗工液ステーションから移送されてきた基材を、吸引装置(1)、吸引装置(2)、又は吸引装置(3)に向けて送りだす機能、及び
吸引装置(1)、吸引装置(2)、又は吸引装置(3)から移送されてきた基材を、次工程に向けて送りだす機能を有する。
方向転換装置(1)は、
塗工液ステーションから移送されてきた基材を、吸引装置(1)又は方向転換装置(2)に向けて送りだす機能、及び
吸引装置(1)から移送されてきた基材を、方向転換装置(2)に向けて送りだす機能を有し、
方向転換装置(2)は、
塗工液ステーションから方向転換装置(1)を介して移送されてきた基材を、基材を吸引装置(2)又は方向転換装置(3)に向けて送りだす機能、及び
吸引装置(2)から移送されてきた基材を、方向転換装置(3)に向けて送りだす機能を有し、
方向転換装置(3)は、
塗工液ステーションから方向転換装置(1)及び(2)を介して移送されてきた基材を、吸引装置(3)に向けて送りだす機能、並びに
吸引装置(3)から移送されてきた基材を、次工程に向けて送りだす機能を有する。
Claims (6)
- (A)塗工液載置ステーションにおいて、セル壁によって区画された複数のセル流路を有するハニカム基材を、前記セル流路の流路方向が鉛直となるように保持し、前記基材の上端面上に触媒コート層形成用塗工液を載置すること、
(B)前記塗工液載置後の基材を、前記塗工液載置ステーションから吸引ステーションまで移送すること、
(C)前記吸引ステーションにおいて、前記塗工液載置後の基材を下端面から吸引して、前記塗工液を前記基材のセル壁上及びセル壁中の1つ以上にコートすること、並びに
(D)前記塗工液コート後の基材を、前記吸引ステーションから取り出して、次工程まで移送すること
を含み、
前記工程(C)において、前記塗工液載置後の基材を下端面から吸引するための時間が、前記工程(A)において、前記基材の上端面上に触媒コート層形成用塗工液を載置するための時間よりも長い、排ガス浄化触媒装置の製造方法であって、
前記吸引ステーションが、2個以上の吸引装置を含み、
前記工程(B)が、
(B1)前記塗工液載置後の基材を、前記塗工液載置ステーションから分岐ステーションまで移送すること、及び
(B2)前記塗工液載置後の基材を、前記分岐ステーションから前記吸引ステーションまで移送すること
を含み、
前記工程(B2)において、前記塗工液載置後の基材を、前記吸引ステーションの前記2個以上の吸引装置のうちの空いている吸引装置のいずれかに移送する、
排ガス浄化触媒装置の製造方法。 - 前記工程(A)の終了時から前記工程(C)の開始時までの時間が所定の範囲内となるように、前記工程(A)~(D)を行う、請求項1に記載の排ガス浄化触媒装置の製造方法。
- 前記工程(A)において、前記基材の上端面上への前記触媒コート層形成用塗工液の載置を、所定時間の待機の後に行う、請求項2に記載の排ガス浄化触媒装置の製造方法。
- 前記工程(D)が、
(D1)前記塗工液コート後の基材を、前記吸引ステーションから取り出して、前記分岐ステーションまで移送すること、及び
(D2)前記塗工液コート後の基材を、前記分岐ステーションから次工程まで移送すること
を含む、請求項1~3のいずれか一項に記載の排ガス浄化触媒装置の製造方法。 - 前記吸引ステーションに含まれる前記吸引装置の数が、3個以上6個以下である、請求項1~4のいずれか一項に記載の排ガス浄化触媒装置の製造方法。
- セル壁によって区画された複数のセル流路を有するハニカム基材を、前記セル流路の流路方向が鉛直となるように保持し、前記基材の上端面上に触媒コート層形成用塗工液を載置するための塗工液載置ステーション、
前記塗工液載置後の基材を、下端面から吸引して、前記塗工液を前記基材のセル壁上及びセル壁中の1つ以上にコートするための吸引装置を2個以上含む、吸引ステーション、並びに
前記塗工液載置後の基材を、前記吸引ステーションに含まれる前記2個以上の吸引装置のいずれかに送り出すための分岐ステーション
を含む、
排ガス浄化触媒装置の製造装置。
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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 |
JP2011529788A (ja) * | 2008-08-06 | 2011-12-15 | ビーエーエスエフ ソシエタス・ヨーロピア | モノリスベースの自動車用及び化学的触媒のための回転割出テーブルを用いる位置決め装置及び方法 |
JP2018015704A (ja) | 2016-07-27 | 2018-02-01 | 株式会社キャタラー | 排ガス浄化用触媒の製造方法及び製造装置 |
JP2018511468A (ja) * | 2015-03-30 | 2018-04-26 | ビーエーエスエフ コーポレーション | 多機能性コーティングシステムならびに触媒ウォッシュコートおよび/または触媒溶液を基材に塗布するためのコーティングモジュールならびにその方法 |
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JPS5179692A (ja) * | 1974-10-21 | 1976-07-12 | Uop Inc | |
JP2003237940A (ja) | 2002-02-18 | 2003-08-27 | Meidensha Corp | 搬送装置 |
JP2011529788A (ja) * | 2008-08-06 | 2011-12-15 | ビーエーエスエフ ソシエタス・ヨーロピア | モノリスベースの自動車用及び化学的触媒のための回転割出テーブルを用いる位置決め装置及び方法 |
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 |
JP2018511468A (ja) * | 2015-03-30 | 2018-04-26 | ビーエーエスエフ コーポレーション | 多機能性コーティングシステムならびに触媒ウォッシュコートおよび/または触媒溶液を基材に塗布するためのコーティングモジュールならびにその方法 |
JP2018015704A (ja) | 2016-07-27 | 2018-02-01 | 株式会社キャタラー | 排ガス浄化用触媒の製造方法及び製造装置 |
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