Roller kiln for pure ammonia combustion and method for operating the same

CN116857951BActive Publication Date: 2026-05-29FOSHAN XIANHU LAB +3
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FOSHAN XIANHU LAB
Filing Date
2023-06-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

When existing industrial kilns use ammonia as fuel, nitrogen oxide emissions are high, and existing denitrification technologies are inefficient, requiring additional equipment and reducing agents, which affects the quality of brick blanks in the kiln and increases costs.

Method used

The roller kiln using pure ammonia combustion, combined with SNCR and SCR denitrification methods, utilizes ammonia combustion components and ammonia gas diversion components to provide heat energy through ammonia combustion and efficiently reduce nitrogen oxides in the catalyst zone of the denitrification chamber, reducing the need for additional equipment and reducing agents, and adopting ammonia staged combustion to reduce the amount of nitrogen oxides generated.

Benefits of technology

It achieves low nitrogen oxide emissions, reduces denitrification costs and kiln footprint, improves denitrification efficiency, and ensures the firing quality of brick blanks in the kiln.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116857951B_ABST
    Figure CN116857951B_ABST
Patent Text Reader

Abstract

The application discloses a pure ammonia combustion roller kiln and a running method thereof, and belongs to the technical field of industrial kilns. In the pure ammonia combustion roller kiln, the kiln body is provided with a kiln cavity and a flue gas discharge port which are in communication with each other, and ammonia combustion assemblies are arranged on the opposite side walls of the kiln body, wherein the ammonia combustion assemblies are provided with ammonia gas inlets. The ammonia gas guiding assembly is provided with an ammonia gas inlet and an ammonia gas outlet, the ammonia gas guiding assembly is arranged on the side wall of the kiln cavity body, the ammonia gas outlet is in communication with the kiln cavity and is arranged close to the flue gas discharge port, and the ammonia gas inlet and the ammonia gas inlet are jointly connected with an ammonia gas main pipe. The denitration box body is provided with a catalyst zone, a flue gas inlet and a flue gas outlet, the catalyst zone is located between the flue gas inlet and the flue gas outlet, and the flue gas inlet is connected with the flue gas discharge port through a flue gas pipeline. The application has the advantages of compact structure, low cost and high treatment efficiency, can effectively reduce the amount of nitrogen oxides in the flue gas discharged by the roller kiln, and realizes the purposes of low emission of nitrogen oxides and clean combustion and utilization of ammonia gas.
Need to check novelty before this filing date? Find Prior Art