Standby safety device for nitrogen coal injection

• Main Authors: YU WENKAI, XIONG YONGYI, GAO LIANG, MAO ZUOMING, JIANG FAYAN, LI LEI
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: CHEMISTRY; MANUFACTURE OF IRON OR STEEL; METALLURGY; METALLURGY OF IRON

The utility model relates to the technical field of blast furnace coal injection, and particularly discloses a standby safety device for nitrogen coal injection, which comprises a nitrogen storage part, a coal injection part and a coal injection part, the connecting pipeline is arranged between the nitrogen storage part and a blowing air medium pipeline in the pulverized coal blowing system and can be used for introducing safe nitrogen into the blowing air medium pipeline; the control element is arranged on the connecting pipeline and controls the connecting pipeline to be communicated with or closed from the air medium spraying pipeline; the detection part is used for detecting the temperature, the pressure intensity and the gas flow in the connecting pipeline and displaying a detection signal, and an operator can also operate the pneumatic ball valve through a remote computer to switch an original compressed air coal injection medium into a safe nitrogen medium for coal injection; therefore, the oxygen cont