1.前言 由于用煤代替石油燃料能大幅度降低燃料费用,因此最近进行了往高炉风口喷吹煤粉和在球团矿焙烧炉燃煤粉的试验。 在钢铁厂对煤灰处理不必采取新的措施而且容易改为烧煤粉的设备,除了上述设备以外,还可考虑烧结点火炉。 烧结点火炉适合烧煤粉的情况下,火焰长度不要过多地超过点火炉的高度,火焰要短,加热要匀,所以必须设置数量较多的小型烧嘴。 1. Introduction Since the cost of fuel can be substantially reduced by replacing petroleum fuel with coal, recent tests have been carried out to inject pulverized coal into the tuyere tuyere and coal pulverized in a pellet roaster. In the steel plant, there is no need to take new measures for coal ash treatment and it is easy to change the equipment to pulverized coal. In addition to the above equipment, a sintering point furnace may also be considered. Sintering point furnace suitable for burning coal, the flame length should not exceed the height of the ignition point, the flame should be short, heating to be uniform, so you must set the number of small burners.