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选择了２４种有机粘结剂作为烧结混合料制粒助剂。通过烧结杯试验，优选出的ＰＧ２型有机粘结剂能显著地改善混合料的透气性，提高烧结矿产量，对烧结无副作用。
24 kinds of organic binders were selected as the sintering mixture granulation additives. Through the sintering cup test, the preferred PG2 organic binder can significantly improve the breathability of the mixture, improve the output of sinter and have no side effect on sintering.