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Secondary drying chamber gas distribution device used for producing SCR denitration catalyst

A technology of gas distribution device and denitrification catalyst, which is applied in the field of denitrification catalyst, and can solve the problems of excessive temperature fluctuation, low yield, uneven drying temperature, etc.

Inactive Publication Date: 2014-06-04
HUBEI GUANGJING ENVIRONMENTAL PROTECTION CATALYSTS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The original drying chamber gas directly enters, the drying gas flow rate is fast and the contact time with the catalyst is short, resulting in uneven drying temperature. After the catalyst is dried, the temperature fluctuates too fast, the catalyst is heated unevenly, and the yield is low.

Method used

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  • Secondary drying chamber gas distribution device used for producing SCR denitration catalyst

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with embodiment.

[0009] exist figure 1 Among them, the dry gas distributor 3 has a circular dry gas outlet 2 on it, and a square inlet 1 for the catalyst dry gas on the bottom. After heat transfer with the catalyst, the drying gas exits the catalyst channel and enters the square inlet 1 of the catalyst drying gas, and enters the drying gas distributor 3. After passing through the gas distributor, the drying gas flow rate slows down and the contact time with the catalyst is prolonged, and the drying temperature is uniform. It will cause the temperature of the catalyst to fluctuate too quickly after drying, the catalyst will be heated evenly, and the yield will be high.

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Abstract

The invention relates to the field of denitration catalysts, in particular to a secondary drying chamber gas distribution device used for producing an SCR denitration catalyst. The secondary drying chamber gas distribution device is characterized in that a round dry gas outlet is formed in the upper portion of a dry gas distributor, and a square catalyst dry gas inlet is formed in the lower portion of the dry gas distributor. By the adoption of the technical scheme, the flow speed of gas used for drying the catalyst is lowered, the gas is evenly distributed, heat losses of secondary drying are reduced, the drying temperature is even, it can be avoided that the temperature of the dried catalyst fluctuates too fast, the catalyst is heated evenly, and the yield is high.

Description

technical field [0001] The invention relates to the field of denitration catalysts, and relates to a secondary drying chamber gas distribution device for producing SCR denitration catalysts. Background technique [0002] The original drying chamber gas directly enters, the drying gas flow rate is fast and the contact time with the catalyst is short, resulting in uneven drying temperature, the temperature fluctuation of the catalyst after drying is too fast, the catalyst is heated unevenly, and the yield is low. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a new secondary drying chamber gas distribution device for producing SCR denitration catalyst. [0004] The technical solution of the present invention is: a secondary drying chamber gas distribution device for producing SCR denitrification catalyst, which is characterized in that the drying gas distributor has a circular outlet f...

Claims

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Application Information

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IPC IPC(8): F26B21/00
Inventor 胡中光周刚王立鸿
Owner HUBEI GUANGJING ENVIRONMENTAL PROTECTION CATALYSTS
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