铁矿粉烧结时,为了提高点火前的料层透气性(以下称为原始透气性—译注),采用润湿原料进行预先造球,即通常所说的制粒。烧结矿的最高产量所需的制粒含水量通常低于获得最大原始透气性所需的含水量。本文讨论制粒机理和获得最佳原始透气性的方法以及探讨制粒对生产率的影响。烧结混合料的生产率取决于烧结时间和烧结矿产量。烧结时间首先决定于混合料的制粒程度,烧结矿产量主要取决于烧结混合料中焦粉和石灰石的用量及粒度大小。后面这个结论是根据烧结试验的结果推断出来的。这些烧结试验结果是在各种原料制粒程度相同时所进行的水份对比试验得到的。 Iron ore powder sintering, in order to improve the permeability of the material layer before ignition (hereinafter referred to as the original breathability -), the use of wetting material pre-pelletizing, commonly known as the granulation. The maximum yield of sinter requires the granulation water content is usually lower than the moisture content required to obtain the maximum initial air permeability. This article discusses the granulation mechanism and the method of obtaining the best raw air permeability and discusses the effect of granulation on productivity. The productivity of the sinter mix depends on the sintering time and the sinter output. Sintering time first depends on the degree of granulation of the mixture, sinter ore production depends mainly on the amount of sintering coke powder and limestone size and size. The latter conclusion is inferred from the results of the sintering test. The results of these sintering tests are based on a comparison of the moisture tests carried out when the degree of granulation of the various raw materials is the same.