A low-alkali clinker sintering reaction device

By installing multi-stage spray guns and multi-stage cyclones in the upper part of the decomposition furnace flue gas chamber, combined with air cannons to clear the material, the problem of incomplete coverage of the spray guns in the cone part of the decomposition furnace was solved, achieving uniformity of the low-alkali clinker calcination reaction and effective removal of NOx, thus reducing energy consumption.

CN224340680UActive Publication Date: 2026-06-09XINJIANG SHENGXIONG CEMENT CO LTD +1
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG SHENGXIONG CEMENT CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, the problem of incomplete coverage of the reducing atmosphere when spray guns are only installed around the cone of the decomposition furnace results in incomplete NOx reduction.

Method used

A three-stage spray gun is installed in the upper cylinder of the decomposition furnace flue, a two-stage spray gun is installed on the first pipe, and a first-stage spray gun is installed on the second pipe. By arranging the spray guns in different positions, the reducing agent coverage is ensured to be more comprehensive. The raw materials are pre-treated by a multi-stage cyclone and the material accumulation is cleared by air cannons to achieve a uniform low-alkali clinker calcination reaction.

Benefits of technology

It achieves full coverage of reducing agent, promotes the uniformity and fullness of low-alkali clinker calcination reaction, improves NOx removal efficiency, and reduces energy consumption through heat recycling.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224340680U_ABST
    Figure CN224340680U_ABST
Patent Text Reader

Abstract

This utility model belongs to the technical field of cement production equipment and discloses a calcination reaction device for low-alkali clinker, including a feeding unit, a decomposition unit, and a discharging unit connected in sequence. The decomposition unit includes a decomposition furnace, a first preheater cyclone, and a second preheater cyclone. The gas outlet of the decomposition furnace is connected to the second preheater cyclone through a first pipe, and the gas outlet of the second preheater cyclone is connected to the gas inlet of the first preheater cyclone through a second pipe. The upper cylinder of the flue chamber of the decomposition furnace is equipped with three-stage spray guns, a second-stage spray gun is installed on the first pipe, and a first-stage spray gun is installed on the second pipe. This solution forms the entire processing flow of low-alkali clinker through the sequential connection of the feeding, decomposition, and discharging units. Simultaneously, the installation of three-stage spray guns in the upper cylinder of the flue chamber of the decomposition furnace, a second-stage spray gun on the first pipe, and a first-stage spray gun on the second pipe ensures more comprehensive reduction. This utility model solves the problem of incomplete coverage of the reducing atmosphere when spray guns are only installed around the cone of the decomposition furnace.
Need to check novelty before this filing date? Find Prior Art