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酒泉钢铁公司1号高炉有效容积1513米~3,于1984年10月15日停炉大修,1985年元月1日修复出铁。大修后炉顶改为无钟炉顶装料设备;供料、装料系统采用PC—584微机控制。炉顶上料仍为斜桥料车上料。无钟炉顶结构特点为:两个料车分别与左右两个固定受料漏斗和两个20米~3的料罐相配合;旋转溜槽的传动为PW式,即用主、副两电机带动行星差动减速机以实现溜槽规定运动;气密箱的冷却和密封以及二次均压均采用加压净高炉煤气。
Jiuquan Iron and Steel Company No. 1 blast furnace effective volume of 1513 m ~ 3, on October 15, 1984 shutdown overhaul, January 1, 1985 iron repair. After the overhaul, the top of the furnace was changed to the bellless top loading equipment; the feeding and loading system was controlled by PC-584. Top of the material is still inclined bridge material car feeding. Bellless roof structure features: two car were about two fixed receiving funnel and two about 20 meters to 3 with the tank; rotary chute drive for the PW-type, that is, with the main and auxiliary two motor-driven Planetary differential gearbox to achieve the provisions of the chute movement; airtight box cooling and sealing, and secondary pressure are used pressure net blast furnace gas.