A carbonate raw material decomposition device in a high carbon dioxide partial pressure environment
By designing a carbonate raw meal decomposition device with a high carbon dioxide partial pressure environment, the problem of CO2 inhibition decomposition in oxygen-enriched/pure oxygen combustion in the cement industry has been solved, achieving efficient carbonate raw meal decomposition, ensuring the quality of cement clinker products, and meeting the energy-saving and carbon-reduction requirements of cement production lines.
Patent Information
- Application Number
- CN202211682534.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-27
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2042-12-27
AI Technical Summary
When the cement industry adopts oxygen-enriched/pure oxygen combustion technology, the high concentration of CO2 gas in the decomposition furnace inhibits the decomposition of carbonate raw materials, resulting in poor production stability. The lack of dedicated burners and process design also affects the quality of cement clinker products.
Design a carbonate raw material decomposition device in a high carbon dioxide partial pressure environment, including a high carbon partial pressure furnace, a raw material buffer silo, a cyclone separator, and a waste heat boiler. By matching air, coal, and material, a suspended calcination reaction flow field is constructed. A circulating separator is added to realize the further decomposition of materials, providing sufficient reaction space and adapting to oxygen-enriched/pure oxygen combustion conditions.
Achieving a carbonate raw meal decomposition rate of over 85% in a high-concentration CO2 environment ensures the quality of cement clinker products, adapts to oxygen-enriched/pure oxygen combustion processes, and expands the energy-saving and carbon-reduction application scenarios of cement production lines.