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Processing device for automobile exhaust three-way catalyst

A three-way catalyst and automobile catalyst technology, which is applied in the field of automobile exhaust purification, can solve the problems of uneven slurry adhesion and unsatisfactory catalyst purification effect, and achieve the effect of ensuring uniformity

Inactive Publication Date: 2017-11-24
LIUZHOU SHENTONG AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current three-way catalyst usually adopts a double-coating structure, and the purification effect of the catalyst is not ideal due to the uneven adhesion of the slurry during coating.

Method used

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  • Processing device for automobile exhaust three-way catalyst

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Embodiment Construction

[0016] Combine below figure 1 The present invention is described in detail, and the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not as a limitation to the present invention.

[0017] The processing equipment of the automobile exhaust three-way catalyst includes a ball mill 7 and a slurry tank 1. After the ball mill 7 ball-mills the raw materials of the automobile catalyst, the powder after ball milling is transported to the slurry tank and stirred with deionized water to form a slurry , and then through the slurry processing device 8, the automobile catalyst carrier is extended into the slurry for coating, and then the coated carrier is transported to the roasting device 9 for roasting; thus, the automatic production of the catalyst can be realized, and the production efficiency can be greatly improved. In the implementation process, one side of the slurry tank 1 is provided with a material delivery pipe 81 com...

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Abstract

The invention relates to the field of automobile tail gas purification, in particular to processing equipment for three-way catalysts for automobile tail gas, including a ball mill and a slurry tank. Add deionized water and stir to form a slurry, then extend the autocatalyst carrier into the slurry through the slurry processing device for coating, and then transport the coated carrier to the roasting device for roasting. In the present invention, a hollow carrier is sheathed on the outside of the column, and the carrier is driven by the column to immerse in the slurry. After the coating is completed, the wind force generated by the rotating micro-blades on the column will throw out the excess slurry in the channel of the carrier. It can be seen that the present invention uses centrifugal force to throw the slurry in the channel from the inside of the carrier to the outside, which can prevent the wind from blowing to the outer surface of the carrier, thereby ensuring the uniformity of the coating on the outer surface of the carrier.

Description

technical field [0001] The invention relates to the field of automobile tail gas purification, in particular to a processing equipment of a three-way catalyst for automobile tail gas. Background technique [0002] The existing catalyst consists of a honeycomb ceramic or metal carrier and a catalyst coating attached to the carrier. The catalyst coating is usually composed of an oxide material with a large specific surface area (such as alumina), an oxygen storage material, and a noble metal active component (usually Pt (platinum), Pd (palladium) dispersed on the surface of the oxide or oxygen storage material. , Rh (rhodium) in one or more) composition. The oxygen storage material is generally a composite oxide containing cerium and zirconium, which adjusts the ratio of oxidizing components and reducing components in the tail gas by absorbing and storing oxygen in the tail gas or releasing oxygen, so that carbon monoxide and hydrocarbon oxygen While being oxidized, nitrogen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/63B01J37/02B01D53/94B01D53/56B01D53/62B01D53/72
CPCB01J23/63B01D53/945B01D2257/502B01D2258/01B01J37/0228B01J37/0232
Inventor 钟静琴钟静清韦晗陶佳
Owner LIUZHOU SHENTONG AUTOMOBILE TECH CO LTD
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