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利用高铁赤泥的吸水性和胶结作用进行了降低球团膨润土用量的试验研究。实验室试验和工业试验结果表明:配加高铁赤泥能有效减少膨润土用量,其配比可由1.5%降到0.8%;当膨润土配比为0.8%时,生球强度、成品球强度、化学成分等都能满足球团生产要求;在冶金性能方面,添加赤泥球团的低温粉化指标优于普通球团,而还原性、还原膨胀、软熔性能低于普通球团。
Experiments were conducted to reduce the amount of pellet bentonite by using the water absorption and cementation of high-speed railway red mud. The results of laboratory tests and industrial tests show that the addition of high-iron red mud can effectively reduce the amount of bentonite, the ratio can be reduced from 1.5% to 0.8%; when the proportion of bentonite 0.8%, the green ball strength, finished ball strength, chemical composition Can meet the pellet production requirements; in terms of metallurgical properties, adding red mud pellets of low temperature pulverization indicators superior to ordinary pellets, and reducing, reducing expansion, reflow performance is lower than ordinary pellets.