Thermal-power co-generation system for cement plant

• Main Authors: TONG JINLIANG, CHENG ZHANG, HUI LIJUAN, JIANG JIANGANG, YANG YONGHONG, JIANG YAOBANG, WANG YANPU, WANG QUANGEN, GUO XINGWEI, WANG ZHIQIN, WANG XIAOYAN, XIANG MIN, ZENG XIANGTAO, ZHANG GUOPENG, WANG HUI, YANG XIUJUN, LI TAO
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2014
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; FURNACES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; KILNS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; OVENS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; RETORTS; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The utility model discloses a thermal-power co-generation system for a cement plant. The thermal-power co-generation system comprises a dragging subsystem and a waste heat subsystem. The dragging subsystem comprises a boiler, a back pressure type turbine driving a main generator, and a condensing steam turbine dragging fans and mills. A boiler steam outlet is connected with the back pressure type turbine. The back pressure type turbine is connected with the condensing steam turbine, a condenser, a condensate pump, a cold water heater, a high-pressure deaerator, a main high-pressure feed pump and a boiler so that closed circulation can be formed. The waste heat subsystem comprises a cement kiln. The head of the cement kiln is provided with a head waste heat boiler, and the tail of the cement kiln is provided with a tail waste heat boiler. The steam outlet of the head waste heat boiler and the steam outlet of the tail waste heat boiler are connected with a waste heat turbine of a secondary generator in a drivin