Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Suspended calcination system capable of improving decomposition rate of limestone
The invention discloses a suspension calcining system capable of increasing the limestone decomposition rate, and belongs to the field of producing steelmaking lime through limestone powder, the number of decomposing furnaces is two, and the discharged material of a penultimate-stage preheating cyclone cylinder of a first preheating cyclone system and the discharged material of a penultimate-stage preheating cyclone cylinder of a second preheating cyclone system enter the first decomposing furnace; limestone powder is decomposed for the first time, high-temperature flue gas enters a last-stage preheating cyclone cylinder of the first preheating cyclone system together, the high-temperature flue gas is separated from material powder, the flue gas enters a penultimate-stage preheating cyclone cylinder of the first preheating cyclone system, the material powder enters the second decomposing furnace, and then the material powder is decomposed for the second time. According to the invention, the concentration of carbon dioxide in the flue gas is reduced, and the adverse effect of carbon dioxide in the flue gas on limestone decomposition is avoided.
本发明公开了一种提高石灰石分解率的悬浮煅烧系统，属于石灰石粉生产炼钢石灰领域，分解炉为两个，第一预热旋风系统的次末级预热旋风筒的下料和第二预热旋风系统的次末级预热旋风筒的下料进入第一分解炉，石灰石粉发生第一次分解，高温烟气一起进入第一预热旋风系统的末级预热旋风筒，高温烟气与料粉分离，烟气进入第一预热旋风系统的次末级预热旋风筒，料粉进入第二分解炉，料粉继而发生第二次分解。本发明降低了烟气中的二氧化碳浓度，避免了因烟气中自身带有二氧化碳对石灰石分解的不利影响。
Suspended calcination system capable of improving decomposition rate of limestone
The invention discloses a suspension calcining system capable of increasing the limestone decomposition rate, and belongs to the field of producing steelmaking lime through limestone powder, the number of decomposing furnaces is two, and the discharged material of a penultimate-stage preheating cyclone cylinder of a first preheating cyclone system and the discharged material of a penultimate-stage preheating cyclone cylinder of a second preheating cyclone system enter the first decomposing furnace; limestone powder is decomposed for the first time, high-temperature flue gas enters a last-stage preheating cyclone cylinder of the first preheating cyclone system together, the high-temperature flue gas is separated from material powder, the flue gas enters a penultimate-stage preheating cyclone cylinder of the first preheating cyclone system, the material powder enters the second decomposing furnace, and then the material powder is decomposed for the second time. According to the invention, the concentration of carbon dioxide in the flue gas is reduced, and the adverse effect of carbon dioxide in the flue gas on limestone decomposition is avoided.
本发明公开了一种提高石灰石分解率的悬浮煅烧系统，属于石灰石粉生产炼钢石灰领域，分解炉为两个，第一预热旋风系统的次末级预热旋风筒的下料和第二预热旋风系统的次末级预热旋风筒的下料进入第一分解炉，石灰石粉发生第一次分解，高温烟气一起进入第一预热旋风系统的末级预热旋风筒，高温烟气与料粉分离，烟气进入第一预热旋风系统的次末级预热旋风筒，料粉进入第二分解炉，料粉继而发生第二次分解。本发明降低了烟气中的二氧化碳浓度，避免了因烟气中自身带有二氧化碳对石灰石分解的不利影响。
Suspended calcination system capable of improving decomposition rate of limestone
一种提高石灰石分解率的悬浮煅烧系统
TANG XINYU (Autor:in) / GAO WEIMIN (Autor:in)
20.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Calcination of clay-limestone mixes
| Engineering Index Backfile | 1928
Thermal Decomposition and Solid Characterization of Calcium Oxide in Limestone Calcination
| British Library Online Contents | 2008
X-ray study of limestone calcination
| Engineering Index Backfile | 1927
New facts about calcination of limestone
| Engineering Index Backfile | 1939
Continuous calcination of limestone for sinter mixes
| Engineering Index Backfile | 1959