Low boiling point working fluid circulation system for recovering blast furnace slag heat

• Main Authors: ZHU WENYUAN, TAN HUI, XIE JING, LI SHEFENG, QU YONG, LI XIANWANG, LI CHUNHUI
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2013
• Subjects: BLASTING; CHEMISTRY; 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; FURNACES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; KILNS; LIGHTING; MANUFACTURE OF IRON OR STEEL; MECHANICAL ENGINEERING; METALLURGY; METALLURGY OF IRON; OVENS; RETORTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The invention relates to a low boiling point working fluid circulation system for recovering blast furnace slag heat, and belongs to mechanical equipment. According to the low boiling point working fluid circulation system, a low boiling point working fluid heat conduction device, a low boiling point working fluid heat convection device and a low boiling point working fluid heat radiation device are arranged on a slag ditch, a punching box and other facilities in the existing water quenching treatment system for the blast furnace slag, heat exchanges between the low boiling point working fluid and hot water on the bottom of the punching box, between the low boiling point working fluid and water steam on the top of the punching box, and between the low boiling point working fluid and slag ditch high temperature slag are performed respectively in three manners such as heat conduction, heat convection and heat radiation to form the low boiling point working fluid steam so as to drive a low boiling point working