高炉上密封阀结构优化改造
Structural Optimization of Upper Sealing Valve in Blast Furnace

上密封阀是保障高炉炉顶装料、布料、密封的关键设备，上密封阀直接关系到高炉的稳定运行。针对并罐无料钟炉顶装料设备上密封阀结构特征进行分析，结合现场实际使用情况，提出结构优化改进方案，并对其运行、维护提出指导性意见。上密封阀结构改进后，阀板更加灵活，更易维修，设备运行稳定性和可靠性均得到大幅度提高。
The upper sealing valve is the key equipment to ensure the charging, distributing and sealing in blast furnace. The upper sealing valve is directly related to the stable operation of blast furnace. The structural characteristics of the sealing valve on the bell less top charging equipment of the parallel tank are analyzed. Combined with its use effect, the structure optimization improvement scheme is put forward, and the guiding opinions for its operation and maintenance are put forward. After the improvement of the structure of the upper sealing valve, the valve plate is more flexible and easier to maintain, and the stability and reliability of the equipment are greatly improved.