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Device for applying slurry for catalyst

A technology of coating device and slurry, which is applied in the direction of surface coating liquid device, catalyst activation/preparation, physical/chemical process catalyst, etc., which can solve the problems of poor exhaust gas purification efficiency, etc.

Pending Publication Date: 2020-04-17
CATALER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the purification efficiency of exhaust gas is lower in the vicinity of the peripheral portion of the monolithic catalyst than in the central portion.

Method used

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  • Device for applying slurry for catalyst
  • Device for applying slurry for catalyst
  • Device for applying slurry for catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Embodiments will be described in detail below with reference to the drawings.

[0029] figure 1 It is a schematic diagram showing an example of a coating device 10 for coating a slurry on the inner surfaces of a plurality of flow holes of a honeycomb base material 1 . The slurry contains, for example, a catalytic substance for purifying exhaust gas of an automobile. The catalytic substance includes noble metals such as platinum and palladium. The coating device 10 of the present embodiment is a device for producing a monolithic catalyst for purifying exhaust gas of an automobile.

[0030] For automobile exhaust gas, the flow distribution of exhaust gas flowing through monolithic catalysts differs depending on the type of vehicle, and the flow pattern of exhaust gas also changes depending on the shape of the catalyst casing and the bending of the piping. Therefore, in order to improve the purification efficiency of exhaust gas, it is preferable to design the applicati...

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Abstract

The present invention aims to provide a device for applying slurry for catalysts. The device 10 for applying slurry for catalysts includes a feed frame 8 for feeding the slurry to a plurality of distribution holes 2 from one end of a honeycomb substrate 1; and a blower 7 for evacuating a wind box 12. An annular resistor 5 is attached to an opening 11b of the wind box 12, and the honeycomb substrate 1 is disposed above the annular resistor 5 while interposing a spacer 6 therebetween. When the blower 7 is operated and the slurry is fed, the width of the coated slurry, which is applied to the distribution holes 2 existing at the outer peripheral zone 2b of the honeycomb substrate 1, becomes shorter than that of the coated slurry, which is applied to the distribution holes 2 existing in the central zone 2a of the honeycomb substrate.

Description

[0001] This application is a divisional application of an invention patent application with the application number 201680004901.5 (international application number PCT / JP2016 / 057328), the application date is March 9, 2016, and the invention name is "coating device for catalyst slurry" . technical field [0002] The present invention relates to a device for coating a slurry containing a catalytic substance on, for example, a honeycomb base material of a monolithic catalyst for purifying automobile exhaust gas. Background technique [0003] Conventionally, as a device for purifying exhaust gas from automobiles, a purification device using a monolithic catalyst is known. The monolithic catalyst includes a substantially cylindrical honeycomb base material having a plurality of parallel flow holes through which gas flows in one direction, and a slurry containing catalytic substances is coated on the inner surface of each flow hole of the honeycomb base material. In this way, whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/02B05C11/06
CPCB05C5/027B05C11/06B01J35/56B01D67/0046B01D2258/01B01D2323/42B01D2255/1021B01D2255/1023B01J37/0215B05C7/04B01D53/94
Inventor 关根洋永岛洋树高冈直弘伊藤实
Owner CATALER CORP