Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Active lime calcining system capable of efficiently capturing CO2
The invention provides an active lime calcining system capable of efficiently capturing CO2. The active lime calcining system comprises a preheater, a rotary kiln, a kiln head cover, a combustor and a vertical cooler, a flue gas outlet of the preheater is connected with the flue gas treatment and CO2 capture system; a wind shield is arranged in the kiln head cover and located at the discharging end of the rotary kiln. A discharge hole is formed in the lower end of the wind shield; the kiln head cover is connected with the vertical cooler; The size of the discharge port is far smaller than that of the joint of the kiln head cover and the vertical cooler, a pipeline is arranged on the kiln head cover and connected with a raw material preheating system, and a large amount of invalid N2 is removed from the oxygen-enriched or pure oxygen atmosphere, so that the concentration of CO2 in flue gas can be greatly improved, and the efficiency of a subsequent CO2 capturing system is greatly improved. Meanwhile, the secondary air of the vertical cooler is independently led out through the kiln head cover, the situation that the concentration of CO2 at the tail of the kiln is diluted due to the fact that the secondary air directly enters the rotary kiln is avoided, and the concentration of CO2 in the flue gas of the rotary kiln is further improved.
一种能够高效捕捉CO2的活性石灰煅烧系统，包括预热器、回转窑、窑头罩、燃烧器、竖式冷却器，预热器的烟气出口与烟气处理及CO2捕捉系统连接，窑头罩内设有挡风罩，挡风罩位于回转窑的出料端，挡风罩的下端设有出料口，窑头罩与竖式冷却器连接，出料口尺寸要远小于窑头罩与竖式冷却器连接处的尺寸，窑头罩上设有管道与原料预热系统连接,由于富氧或纯氧气氛中剔除了大量无效N2,因此可以极大的提高烟气中的CO2浓度，进而使后续的CO2捕捉系统效率大幅度增加，同时，竖式冷却器的二次风经窑头罩单独引出，避免了直接入回转窑，引起窑尾CO2浓度的稀释，进一步提高了回转窑烟气中CO2浓度。
Active lime calcining system capable of efficiently capturing CO2
The invention provides an active lime calcining system capable of efficiently capturing CO2. The active lime calcining system comprises a preheater, a rotary kiln, a kiln head cover, a combustor and a vertical cooler, a flue gas outlet of the preheater is connected with the flue gas treatment and CO2 capture system; a wind shield is arranged in the kiln head cover and located at the discharging end of the rotary kiln. A discharge hole is formed in the lower end of the wind shield; the kiln head cover is connected with the vertical cooler; The size of the discharge port is far smaller than that of the joint of the kiln head cover and the vertical cooler, a pipeline is arranged on the kiln head cover and connected with a raw material preheating system, and a large amount of invalid N2 is removed from the oxygen-enriched or pure oxygen atmosphere, so that the concentration of CO2 in flue gas can be greatly improved, and the efficiency of a subsequent CO2 capturing system is greatly improved. Meanwhile, the secondary air of the vertical cooler is independently led out through the kiln head cover, the situation that the concentration of CO2 at the tail of the kiln is diluted due to the fact that the secondary air directly enters the rotary kiln is avoided, and the concentration of CO2 in the flue gas of the rotary kiln is further improved.
一种能够高效捕捉CO2的活性石灰煅烧系统，包括预热器、回转窑、窑头罩、燃烧器、竖式冷却器，预热器的烟气出口与烟气处理及CO2捕捉系统连接，窑头罩内设有挡风罩，挡风罩位于回转窑的出料端，挡风罩的下端设有出料口，窑头罩与竖式冷却器连接，出料口尺寸要远小于窑头罩与竖式冷却器连接处的尺寸，窑头罩上设有管道与原料预热系统连接,由于富氧或纯氧气氛中剔除了大量无效N2,因此可以极大的提高烟气中的CO2浓度，进而使后续的CO2捕捉系统效率大幅度增加，同时，竖式冷却器的二次风经窑头罩单独引出，避免了直接入回转窑，引起窑尾CO2浓度的稀释，进一步提高了回转窑烟气中CO2浓度。
Active lime calcining system capable of efficiently capturing CO2
一种能够高效捕捉CO2的活性石灰煅烧系统
ZHANG PING (Autor:in) / SU HUAWEI (Autor:in) / QIAO LIYANG (Autor:in) / DAI WEILIN (Autor:in) / CHEN RUIXUE (Autor:in) / XU YONG (Autor:in) / WEI CHENGYU (Autor:in) / QI CHUANG (Autor:in) / ZHANG BEIJING (Autor:in) / ZHOU WENHUI (Autor:in)
15.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
Energy-saving vertical preheater system for calcining active lime
| Europäisches Patentamt | 2021