Large scale blast furnace is the developing trend of the ironmaking. Constructing huge blast furnace must have fine burden and high grade coke.
高炉大型化是发展趋势，但大型高炉对炉料要求严格，建设巨型高炉必须有好的炉料及高质量焦炭。
The lining structure with concentrated copper cooling plate-stave combined system for the large-scale blast furnace is the important guarantee of 18 ~ 20 campaign life.
大型高炉的密集式铜冷却板与冷却壁结合的炉衬结构是使高炉寿命达到18 ~20年的一项重要保证措施。
The results show that the blast hole diameter has little effect of the vibration level in production blasting, and the other factors should be considered in large scale delay blast design.
结果表明，除炮孔孔径在实际生产爆破中对振动影响不明显外，其它因素在大区微差爆破的设计中都值得注意。
In order to adapt the need of loading and unloading drill rod of iron gate-opening machine for large-scale blast furnace, the new change rock drill machine is designed.
为适应大型高炉开铁口机的装卸钎杆需要，设计开发了新型换钎机。
Because of the large-scale blast furnace, the request on pellets are constantly increasing, To get lower reduction swelling and quality of pellets is one of the pursuit of metallurgy workers.
随着高炉大型化对球团矿的要求日益提高，获得较低还原膨胀率的优质球团矿是冶金工作者追求之一。
Because of the large-scale blast furnace, the request on pellets are constantly increasing, To get lower reduction swelling and quality of pellets is one of the pursuit of metallurgy workers.
随着高炉大型化对球团矿的要求日益提高，获得较低还原膨胀率的优质球团矿是冶金工作者追求之一。
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