A flue gas denitration treatment device for a waste incineration power plant

By using layered catalytic honeycomb blocks and rotary injection technology, the problems of uneven ammonia mixing and difficult catalyst maintenance in flue gas denitrification devices have been solved, thereby improving denitrification efficiency, simplifying maintenance procedures, and reducing costs.

CN224524453UActive Publication Date: 2026-07-21WEIYANG WASTE HEAT POWER GENERATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIYANG WASTE HEAT POWER GENERATION CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional waste-to-energy power plant flue gas denitrification devices suffer from uneven mixing of ammonia and flue gas, leading to localized ammonia escape or incomplete reaction. Furthermore, the integral fixed packing layer of the catalyst has long maintenance cycles and high costs.

Method used

It adopts a layered catalytic honeycomb block structure, and the rotating tube drives the connecting rod to rotate at high speed to form a rotating atomized injection, which ensures that ammonia and flue gas are mixed evenly. The catalyst weight is dispersed by the limiting ring and sealing structure, which supports independent maintenance.

Benefits of technology

It achieves three-dimensional forced convection between ammonia and flue gas, improves gas-solid mass transfer efficiency and reaction uniformity, simplifies catalyst maintenance process, and reduces maintenance costs.

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Abstract

The utility model relates to flue gas denitration treatment technical field, and disclose a kind of flue gas denitration treatment device of garbage incineration power plant, including installation bucket, intermediate cylinder and connecting cylinder, intermediate cylinder is arranged between installation bucket and connecting cylinder, and intermediate cylinder has at least one, and the upper end of connecting cylinder is fixedly installed with guide cylinder, and the upper end of guide cylinder is fixedly installed with exhaust pipe.In the utility model, when flue gas flows through bottom layer / middle layer / upper layer catalytic honeycomb block layering from bottom layer, rotating ammonia jet stream actively penetrates flue gas turbulence, breaks the diffusion boundary layer of static mixing, makes ammonia and waste gas in three-dimensional space forced convection;Bottom layer / middle layer / upper layer catalytic honeycomb block layering corresponding injection site of connecting rod, ensure that ammonia concentration distribution is uniform at the inlet of each section of catalyst, avoid local ammonia excess or deficiency, rotating injection makes ammonia molecule dynamic coverage on catalyst surface, significantly improve gas-solid mass transfer efficiency, and rotating dynamic mixing improves reaction efficiency and uniformity.
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