Pre-alarm device for preventing converter sliding plate slag stopping failure

• Main Authors: PENG DONGDONG, WANG XIAOYAN, CHAI SHUAI, LIU XIAOLIN, WANG JIANCHANG, WANG LIN, LI QIUYANG, WANG XIAOBO, CHE YANQING, CAO XIAOYONG, LYU DUGANG, LIU YANG
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2023
• Subjects: CHEMISTRY; METALLURGY; METALLURGY OF IRON; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS

The utility model relates to a pre-alarm device for preventing converter sliding plate slag stopping failure. The pre-alarm device comprises a PLC (Programmable Logic Controller), a converter encoder, a sliding plate opening electromagnetic valve, a sliding plate closing electromagnetic valve, an infrared thermal imager and an alarm, the device further comprises an oxygen lance encoder, an oxygen lance oxygen blowing valve, a nitrogen valve, a hydraulic pump station, a sliding plate opening limiting sensor, a sliding plate closing limiting sensor, a reset button and a temperature measuring gun. Signal lines of a converter encoder, an oxygen lance encoder and a temperature measuring lance are connected to the analog quantity input end of the PLC, signal lines of an infrared thermal imager, an oxygen lance oxygen blowing valve, a nitrogen valve, a hydraulic pump station and a reset button are connected to the digital quantity input end of the PLC, and signal lines of an alarm, a sliding plate opening electromag