Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pure oxygen combustion cement firing system and cement clinker preparation method
The invention discloses a pure oxygen combustion cement firing system and a cement clinker preparation method, and belongs to the technical field of cement production equipment. The pure oxygen combustion cement firing system comprises, communicated in turn, a smoke chamber, a rotary kiln, a grate cooler, a decomposing furnace, a carbon dioxide capturing and purifying system, a waste heat utilization system, and a multi-stage of pure oxygen preheater and a multi-stage air preheater which are mutually independent. a high-temperature area of the grate cooler comprises a first cooling area and a second cooling area which are mutually independent, the first cooling area is communicated with the rotary kiln and the tertiary air pipe, the second cooling area is communicated with the multi-stage air preheater, and the multi-stage pure oxygen preheater is communicated with the decomposing furnace, the smoke chamber and the carbon dioxide capturing and purifying system. The multi-stage air preheater is communicated with the second cooling area and the waste heat utilization system to form a pure oxygen passage and an air passage which are independent of each other, pure oxygen not doped with CO2 is favorable for improving the combustion environment and increasing the CO2 concentration of flue gas, high-temperature air can preheat raw materials in the multi-stage air preheater, and air heat is utilized in the cement sintering system.
本发明公开了一种纯氧燃烧水泥烧成系统及水泥熟料制备方法，属于水泥生产设备技术领域，包括依次连通的烟室、回转窑、篦冷机，以及分解炉、二氧化碳捕集提纯系统、余热利用系统、相互独立的多级纯氧预热器和多级空气预热器；篦冷机的高温区包括相互独立的第一冷却区、第二冷却区，第一冷却区与回转窑、三次风管连通，第二冷却区与多级空气预热器连通，多级纯氧预热器与分解炉、烟室和二氧化碳捕集提纯系统连通，多级空气预热器与第二冷却区、余热利用系统连通，形成两个相互独立的纯氧通路、空气通路，不掺入CO2的纯氧，有利于改善燃烧环境，提高烟气CO2浓度，高温空气可对多级空气预热器内生料进行预热，将空气热量利用于水泥烧成系统中。
Pure oxygen combustion cement firing system and cement clinker preparation method
The invention discloses a pure oxygen combustion cement firing system and a cement clinker preparation method, and belongs to the technical field of cement production equipment. The pure oxygen combustion cement firing system comprises, communicated in turn, a smoke chamber, a rotary kiln, a grate cooler, a decomposing furnace, a carbon dioxide capturing and purifying system, a waste heat utilization system, and a multi-stage of pure oxygen preheater and a multi-stage air preheater which are mutually independent. a high-temperature area of the grate cooler comprises a first cooling area and a second cooling area which are mutually independent, the first cooling area is communicated with the rotary kiln and the tertiary air pipe, the second cooling area is communicated with the multi-stage air preheater, and the multi-stage pure oxygen preheater is communicated with the decomposing furnace, the smoke chamber and the carbon dioxide capturing and purifying system. The multi-stage air preheater is communicated with the second cooling area and the waste heat utilization system to form a pure oxygen passage and an air passage which are independent of each other, pure oxygen not doped with CO2 is favorable for improving the combustion environment and increasing the CO2 concentration of flue gas, high-temperature air can preheat raw materials in the multi-stage air preheater, and air heat is utilized in the cement sintering system.
本发明公开了一种纯氧燃烧水泥烧成系统及水泥熟料制备方法，属于水泥生产设备技术领域，包括依次连通的烟室、回转窑、篦冷机，以及分解炉、二氧化碳捕集提纯系统、余热利用系统、相互独立的多级纯氧预热器和多级空气预热器；篦冷机的高温区包括相互独立的第一冷却区、第二冷却区，第一冷却区与回转窑、三次风管连通，第二冷却区与多级空气预热器连通，多级纯氧预热器与分解炉、烟室和二氧化碳捕集提纯系统连通，多级空气预热器与第二冷却区、余热利用系统连通，形成两个相互独立的纯氧通路、空气通路，不掺入CO2的纯氧，有利于改善燃烧环境，提高烟气CO2浓度，高温空气可对多级空气预热器内生料进行预热，将空气热量利用于水泥烧成系统中。
Pure oxygen combustion cement firing system and cement clinker preparation method
一种纯氧燃烧水泥烧成系统及水泥熟料制备方法
ZHANG CHAO (Autor:in) / WANG BIN (Autor:in) / LIU JIANYING (Autor:in) / CAO XINMING (Autor:in) / TAO YING (Autor:in) / DENG YUHUA (Autor:in) / SUN XUEJING (Autor:in) / ZHANG HAIPING (Autor:in) / HAN XIAOJUN (Autor:in)
05.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
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
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