A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lime calcining device and method
The invention provides a lime calcination device and method, and belongs to the technical field of lime calcination, the device comprises a shaft kiln, a heating combustion system and a carbon dioxide recovery system; the shaft kiln sequentially comprises a preheating section, first sealing equipment, a calcining section, second sealing equipment, a cooling section and a combustion chamber arranged outside the calcining section in a surrounding mode from top to bottom. A carbon dioxide outlet is formed in the calcining section; a discharging opening is formed in the bottom of the cooling section; the heating combustion system comprises an A-side heat accumulating type burner and a B-side heat accumulating type burner which are arranged on the two sides of the combustion chamber respectively, air supply equipment and a gas pipeline. The carbon dioxide recovery system comprises a waste heat recovery device connected with the carbon dioxide outlet, a first dust removal device and a carbon dioxide recovery process system. According to the invention, the problems of low CO2 gas concentration, low utilization value, easy resource waste and the like caused by mixing of carbon dioxide decomposed from calcium carbonate and flue gas generated by fuel combustion during limestone calcination in the prior art can be solved.
本发明提供一种石灰煅烧装置及方法，属于石灰煅烧技术领域，其中装置包括竖窑、加热燃烧系统和二氧化碳回收系统；竖窑自上至下依次包括预热段、第一密封设备、煅烧段、第二密封设备、冷却段和围设在煅烧段外部的燃烧室；在煅烧段上设置有二氧化碳出口；在冷却段底部设置有卸料口；加热燃烧系统包括分别设置在燃烧室两侧的A侧蓄热式烧嘴和B侧蓄热式烧嘴、空气供应设备和燃气管道；二氧化碳回收系统包括与二氧化碳出口连接的余热回收装置、第一除尘装置和二氧化碳回收工艺系统。本发明能够解决现有技术中，石灰石煅烧时，碳酸钙分解出的二氧化碳由于和燃料燃烧产生的烟气混合，导致CO2气体浓度低，利用价值低，易造成资源浪费等问题。
Lime calcining device and method
The invention provides a lime calcination device and method, and belongs to the technical field of lime calcination, the device comprises a shaft kiln, a heating combustion system and a carbon dioxide recovery system; the shaft kiln sequentially comprises a preheating section, first sealing equipment, a calcining section, second sealing equipment, a cooling section and a combustion chamber arranged outside the calcining section in a surrounding mode from top to bottom. A carbon dioxide outlet is formed in the calcining section; a discharging opening is formed in the bottom of the cooling section; the heating combustion system comprises an A-side heat accumulating type burner and a B-side heat accumulating type burner which are arranged on the two sides of the combustion chamber respectively, air supply equipment and a gas pipeline. The carbon dioxide recovery system comprises a waste heat recovery device connected with the carbon dioxide outlet, a first dust removal device and a carbon dioxide recovery process system. According to the invention, the problems of low CO2 gas concentration, low utilization value, easy resource waste and the like caused by mixing of carbon dioxide decomposed from calcium carbonate and flue gas generated by fuel combustion during limestone calcination in the prior art can be solved.
本发明提供一种石灰煅烧装置及方法，属于石灰煅烧技术领域，其中装置包括竖窑、加热燃烧系统和二氧化碳回收系统；竖窑自上至下依次包括预热段、第一密封设备、煅烧段、第二密封设备、冷却段和围设在煅烧段外部的燃烧室；在煅烧段上设置有二氧化碳出口；在冷却段底部设置有卸料口；加热燃烧系统包括分别设置在燃烧室两侧的A侧蓄热式烧嘴和B侧蓄热式烧嘴、空气供应设备和燃气管道；二氧化碳回收系统包括与二氧化碳出口连接的余热回收装置、第一除尘装置和二氧化碳回收工艺系统。本发明能够解决现有技术中，石灰石煅烧时，碳酸钙分解出的二氧化碳由于和燃料燃烧产生的烟气混合，导致CO2气体浓度低，利用价值低，易造成资源浪费等问题。
Lime calcining device and method
石灰煅烧装置及方法
ZHAO WEIJIE (author) / YANG FEI (author) / WANG WEIJUN (author) / GUO NAITAO (author) / ZHANG JIE (author) / ZHANG FUXIN (author) / LIU JIANG (author) / WANG HUIXIA (author) / WANG ZHIWEI (author)
2024-10-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Lime calcining equipment for calcium carbonate production and use method of lime calcining equipment
| European Patent Office | 2024