The entire roasting process , during which the air in the nearly 10 feet high furnaces reaches a temperature of 130 c , is carried out automatically 整个的烘焙过程都是在10英尺高的炉子里， 130 c的高温下由机器自动完成的。
2.
With the high furnace becoming larger with operation under high pressure and high wind temperature , more stringent requirements are raised for fire - retardant materials 随着高炉的大型化以及高压、高风温操作，对耐材提出更多更苛刻的要求，针对这一情况，本公司联合有关科研院校进行技术攻关，开发出新一代出铁沟浇注料。
3.
The products are widely applied to lander , branch lander and safety liners of large and medium - sized high furnaces with one - time iron capacity of over 100thousand tons . after rectifying , the iron capacity can be as much as over 300thousand tons 同时具有抗氧化、耐热震、烘烤时间短、施工方便等优点，广泛应用于大中型高炉出铁主沟、支沟和安全衬，一次性通铁量十万吨以上，经修补后通铁量可达三十万吨以上。
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