Cooling system for tuyere small sleeve in blast furnace and control method

• Main Authors: SHAO CHUNMING, ZHENG YAQING, SONG SHAOHUA, ZHANG HONGMIN, KONG XIANGYUE, XUAN ZHAOFANG, CHENG HONGQUAN, LEI CHUNHUI, WANG RONGGANG, LIN CHUNSHAN
• Format: Patent
• Language: Chinese; English
• Published: 18.11.2022
• Subjects: CHEMISTRY; MANUFACTURE OF IRON OR STEEL; METALLURGY; METALLURGY OF IRON

The invention provides a cooling system for a tuyere small sleeve in a blast furnace and a control method, and the system comprises a high-pressure water drum used for storing cooling water; one end of the first water flow channel is communicated with the high-pressure water drum, and the other end of the first water flow channel is communicated with a tuyere small sleeve; one end of the second water flow channel is communicated with the high-pressure water drum, and the other end of the second water flow channel is communicated with the tuyere small sleeve; when the first water flow channel is not abnormal, the second water flow channel is closed, and the first water flow channel is opened; and when the first water flow channel is abnormal, the first water flow channel is closed, and cooling water in the high-pressure water bag flows into the tuyere small sleeve through the second water flow channel, so that the tuyere small sleeve is cooled. When the tuyere small sleeve has a water supply fault, normal wate