The technology of hightemperaturepreheating and hightemperature and long campaign life hot blast stove had been adopted during the Shougang's no. 2 BF technology rebuild design.
首钢2号高炉技术改造设计采用了高温预热及高风温长寿热风炉技术。
2
The recuperators have high air resistance , low air preheatingtemperature and high fan pressure head , and fan has much noise to environment and are apt to break down with vibration .
此换热器空气阻力大，空气预热温度不高，风机压头高，环境噪声大，风机振动大、易损坏。
3
The high blast temperature technology by top combustion preheating furnace preheating the intensifying combusted air is used for the hot stoves of New no. 2 and no. 3 BFs in Angang.