Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multi-stage suspension preheating cement kiln system and control method thereof
The invention relates to a multi-stage suspension preheating cement kiln system, which comprises: a rotary kiln provided with a rotary kiln smoke chamber; a decomposing furnace which is communicated with the rotary kiln smoke chamber; a multi-stage suspension preheater used for preheating a cement raw material, wherein the multistage suspension preheater at least comprises a last-stage cyclone, asecond-last-stage cyclone and a heat exchange pipeline between the last-stage cyclone and the second-last-stage cyclone, the flue gas from the decomposing furnace is introduced into the last-stage cyclone, and outlet flue gas of the lower-stage cyclone is introduced into the upper-stage cyclone through the heat exchange pipeline between the upper-stage cyclone and the lower-stage cyclone of the multistage suspension preheater; a cement raw material conveying pipeline, which is communicated with the multi-stage suspension preheater; and a coal feeding device, which is used for supplying pulverized coal to the system, wherein a preheater coal feeding point is arranged on at least one heat exchange pipeline, and the coal feeding device is suitable for supplying pulverized coal to the multi-stage suspension preheater through the preheater coal feeding point. The invention further relates to a control method of the multi-stage suspension preheating cement kiln system.
本发明涉及多级悬浮预热水泥窑炉系统，包括：回转窑，具有回转窑烟室；分解炉，与回转窑烟室连通；用于预热水泥生料的多级悬浮预热器，多级悬浮预热器至少包括末级旋风筒、次末级旋风筒及两者之间的换热管道，其中：来自分解炉的烟气通入末级旋风筒，且在多级悬浮预热器的上下两级旋风筒之间，下级旋风筒的出口烟气通过换热管道通入上级旋风筒；水泥生料输送管道，与多级悬浮预热器相通；和给煤装置，用于向系统供给煤粉，其中：至少一个换热管道上设有预热器给煤点；所述给煤装置适于通过所述预热器给煤点向多级悬浮预热器供给煤粉。本发明还涉及多级悬浮预热水泥窑炉系统的控制方法。
Multi-stage suspension preheating cement kiln system and control method thereof
The invention relates to a multi-stage suspension preheating cement kiln system, which comprises: a rotary kiln provided with a rotary kiln smoke chamber; a decomposing furnace which is communicated with the rotary kiln smoke chamber; a multi-stage suspension preheater used for preheating a cement raw material, wherein the multistage suspension preheater at least comprises a last-stage cyclone, asecond-last-stage cyclone and a heat exchange pipeline between the last-stage cyclone and the second-last-stage cyclone, the flue gas from the decomposing furnace is introduced into the last-stage cyclone, and outlet flue gas of the lower-stage cyclone is introduced into the upper-stage cyclone through the heat exchange pipeline between the upper-stage cyclone and the lower-stage cyclone of the multistage suspension preheater; a cement raw material conveying pipeline, which is communicated with the multi-stage suspension preheater; and a coal feeding device, which is used for supplying pulverized coal to the system, wherein a preheater coal feeding point is arranged on at least one heat exchange pipeline, and the coal feeding device is suitable for supplying pulverized coal to the multi-stage suspension preheater through the preheater coal feeding point. The invention further relates to a control method of the multi-stage suspension preheating cement kiln system.
本发明涉及多级悬浮预热水泥窑炉系统，包括：回转窑，具有回转窑烟室；分解炉，与回转窑烟室连通；用于预热水泥生料的多级悬浮预热器，多级悬浮预热器至少包括末级旋风筒、次末级旋风筒及两者之间的换热管道，其中：来自分解炉的烟气通入末级旋风筒，且在多级悬浮预热器的上下两级旋风筒之间，下级旋风筒的出口烟气通过换热管道通入上级旋风筒；水泥生料输送管道，与多级悬浮预热器相通；和给煤装置，用于向系统供给煤粉，其中：至少一个换热管道上设有预热器给煤点；所述给煤装置适于通过所述预热器给煤点向多级悬浮预热器供给煤粉。本发明还涉及多级悬浮预热水泥窑炉系统的控制方法。
Multi-stage suspension preheating cement kiln system and control method thereof
多级悬浮预热水泥窑炉系统及其控制方法
REN QIANGQIANG (Autor:in) / CAI JUN (Autor:in) / LYU QINGGANG (Autor:in)
22.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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