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| shaft-furnace process for induration of pellets (【技】在专用竖炉中焙烧铁矿石球团的工艺。在竖炉中、上部两侧的燃烧室，将气体或液体燃料燃烧后的高温废气喷人炉内，与自上而下运动的生球逆向而动，加热炉料；另在竖炉下部鼓人冷风，在炉内自下而上运动，冷却炉料，从而，使布人炉口的生球在竖炉内连续下降的过程中，经过干燥、预热、焙烧、均热、冷却五个工作带，焙烧成为成品球团矿，由竖炉下部连续排出。) | |||
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