Segmented SCR denitration method and device

A segmented, denitration technology, applied in the field of SCR denitration, can solve the problems of incomplete reduction of NOx, ammonia escape, uneven mixing of ammonia and airflow, etc., to reduce ammonia escape, ensure denitration rate, and improve uniformity. Effect

Pending Publication Date: 2021-12-14
JIANGSU LVDOU ENVIRONMENTAL ENG CO LTD
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Problems solved by technology

However, there will be uneven mixing of ammonia gas and airflow in one injection of ammonia, and excessive local ammonia or NOx will easily cause the problem of ammonia escape or incomplete reduction of NOx

Method used

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  • Segmented SCR denitration method and device
  • Segmented SCR denitration method and device
  • Segmented SCR denitration method and device

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] see Figure 1-Figure 5 As shown, the present invention provides a segmented SCR denitrification device, and the device mainly includes the following structure:

[0041] The partition 1 arranged inside the denitrification tower, and the partition 1 separates the interior of the denitrification tower to form two processing chambers that can be directed and communicated, and the two processing chambers are respectively the front chamber and t...

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Abstract

The invention belongs to the technical field of SCR denitration, and discloses a segmented SCR denitration method and device. The device comprises a partition piece and two groups of denitration components. The partition piece is arranged in a denitration tower and divides the interior of the denitration tower into two treatment cavities which can be directionally communicated, and the two treatment cavities are a front cavity and a rear cavity respectively. The two groups of denitration components are respectively mounted in the two treatment cavities, and the ammonia spraying amount ratio of the two groups of denitration components is (2-5): 1. A gas uniformizing component is also mounted in the front cavity, and the gas uniformizing component is positioned on the front side of the gas inlet of the corresponding denitration component. The gas uniformizing component comprises a mounting plate and multiple flow limiting mechanisms arranged on the mounting plate at equal intervals. The flow limiting mechanisms are used for limiting flow according to airflow pressure. The larger the airflow pressure is, the smaller the airflow passing through the flow limiting mechanisms is. The smaller the air flow pressure is, the larger the air flow passing through the flow limiting mechanisms is. In conclusion, segmented denitration and uniform mixing of airflow are effectively realized, and the denitration effect is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of SCR denitrification, and in particular relates to a segmented SCR denitrification method and device. Background technique [0002] SCR denitrification technology is currently the most mature and widely used denitrification technology, and the existing denitrification equipment generally adopts the one-time ammonia injection technology. When mixed with ammonia gas, it enters the SCR catalyst layer for reduction reaction to generate N 2 And water, so as to achieve the purpose of denitrification. However, there will be uneven mixing of ammonia gas and airflow in one injection of ammonia, and excessive local ammonia or NOx will easily cause the problem of ammonia escape or incomplete reduction of NOx. Contents of the invention [0003] In view of this, in order to solve the problems raised in the above-mentioned background technology, the object of the present invention is to provide a segmented SCR denit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/56
CPCB01D53/8631B01D2251/2062
Inventor 陈中海葛栋
Owner JIANGSU LVDOU ENVIRONMENTAL ENG CO LTD
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