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Novel dry-process cement clinker grading calcination energy-saving production process and equipment
The invention provides a novel dry-process cement clinker graded calcination energy-saving production process and equipment, and relates to the fields of dry-process cement clinker production technologies and carbon dioxide capture. The device mainly comprises a pre-decomposition system consisting of C1, C2 and C3 three-stage cyclone preheaters, a coal-fired hot air furnace capable of combining waste heat flue gas from a melting furnace and the like, and an electric pyrolysis kiln which has the functions of directly capturing high-concentration or high-purity CO2 and light burning dicalcium silicate, has micro-negative pressure, is closed and electrically heated, is used for semi-suspending materials in a self-gravity dispersion manner and can be uniformly subjected to cross solid-phase reaction, the system comprises a coal hot air furnace, a melting furnace for oxygen-enriched calcination of tricalcium silicate, a coal injection device, oxygen production devices such as an industrial pressure swing adsorption oxygen generator, a fused salt power generation system or a water cooling and liquid nitrogen cooling system or a water cooling and liquefied CO2 cooling system or a cooling machine, a high-temperature CO2 waste heat recovery system, a gas purification system, a compression system, a liquefaction system, a solidification and storage tank system, a transportation and utilization system and the like. The system has good energy-saving and cyclic utilization effects.
本发明提供一种新型干法水泥熟料分级煅烧节能生产工艺及装备，涉及干法水泥熟料生产技术和二氧化碳捕集领域。其主要包括：C1、C2、C3三级旋风预热器及可合并来自熔融窑废热烟气的燃煤热风炉等组成的预分解系统、兼具直接捕集高浓度或高纯CO2和轻烧硅酸二钙功能的微负压、密闭、电加热、物料以自重力弥散状半悬浮的、可均匀发生交叉固相反应的电热解窑、燃煤热风炉、富氧煅烧硅酸三钙的熔融窑及喷煤装置、工业变压吸附制氧机等制氧装置、熔盐发电系统或水冷和液氮冷却系统或水冷和液化CO2冷却系统或冷却机、高温CO2余热回收、气体净化、压缩、液化、固化和储罐、运输及利用系统等。本发明具备较好的节能与循环利用效果。
Novel dry-process cement clinker grading calcination energy-saving production process and equipment
The invention provides a novel dry-process cement clinker graded calcination energy-saving production process and equipment, and relates to the fields of dry-process cement clinker production technologies and carbon dioxide capture. The device mainly comprises a pre-decomposition system consisting of C1, C2 and C3 three-stage cyclone preheaters, a coal-fired hot air furnace capable of combining waste heat flue gas from a melting furnace and the like, and an electric pyrolysis kiln which has the functions of directly capturing high-concentration or high-purity CO2 and light burning dicalcium silicate, has micro-negative pressure, is closed and electrically heated, is used for semi-suspending materials in a self-gravity dispersion manner and can be uniformly subjected to cross solid-phase reaction, the system comprises a coal hot air furnace, a melting furnace for oxygen-enriched calcination of tricalcium silicate, a coal injection device, oxygen production devices such as an industrial pressure swing adsorption oxygen generator, a fused salt power generation system or a water cooling and liquid nitrogen cooling system or a water cooling and liquefied CO2 cooling system or a cooling machine, a high-temperature CO2 waste heat recovery system, a gas purification system, a compression system, a liquefaction system, a solidification and storage tank system, a transportation and utilization system and the like. The system has good energy-saving and cyclic utilization effects.
本发明提供一种新型干法水泥熟料分级煅烧节能生产工艺及装备，涉及干法水泥熟料生产技术和二氧化碳捕集领域。其主要包括：C1、C2、C3三级旋风预热器及可合并来自熔融窑废热烟气的燃煤热风炉等组成的预分解系统、兼具直接捕集高浓度或高纯CO2和轻烧硅酸二钙功能的微负压、密闭、电加热、物料以自重力弥散状半悬浮的、可均匀发生交叉固相反应的电热解窑、燃煤热风炉、富氧煅烧硅酸三钙的熔融窑及喷煤装置、工业变压吸附制氧机等制氧装置、熔盐发电系统或水冷和液氮冷却系统或水冷和液化CO2冷却系统或冷却机、高温CO2余热回收、气体净化、压缩、液化、固化和储罐、运输及利用系统等。本发明具备较好的节能与循环利用效果。
Novel dry-process cement clinker grading calcination energy-saving production process and equipment
一种新型干法水泥熟料分级煅烧节能生产工艺及装备
WU ZHANXING (author) / ZHAO GUANGMING (author) / JIA ZHAOHUI (author) / ZHU XIAOLI (author) / ZHAO GUOHAO (author) / LIANG YOUYU (author) / ZHAI FENGYUAN (author) / WANG JIANDONG (author) / GAO QIULAI (author) / ZHANG GUOHUA (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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