摘要：为了明确离心粒化的机理并探究粒化器的直径、表面粗糙度、结构等因素对粒化效果的影响,基于控制变量法,进行3组液态熔渣离心粒化实验研究。结果表明:粒化器的粒化效率与其直径大小密切相关,在120～250 mm范围内,粒化器的直径越大,粒化效率越高;粒化器表面粗糙度对粒化效果影响显著,表面粗糙度R_a=12. 5的粒化器粒化效果最好;相比平盘式,转杯式粒化器的粒化效果较好,转杯式粒化器可有效减少大尺寸颗粒数量以及块片状物的产生,其中当转杯式粒化器在内倾角介于120°～150°,深度在20 mm左右时粒化效果最佳。

关键词：液态熔渣；离心；干式粒化；粒化器

Abstract: In order to clarify the mechanism of centrifugal granulation and explore the influence of granulator diameter，surface roughness and structure on the granulation effect，based on the control variable method，three groups of liquid slag centrifugal granulation experiments were carried out．The results show that the granulation efficiency of the granulator is closely related to its diameter．In the range of 120－250 mm，the larger the diameter of the granulator，the higher the granulation efficiency; the surface roughness of the granulator has a significant effect on the granulation effect．The granulator with surface roughness Ｒ_a= 12．5 has the best granulation effect; compared with the flat disc type，the granulation effect of the cup granulator is better，and the cup granulator can effectively reduce the number of large particles，the block and the sheet，wherein the granulation effect is best when the cup granulator has an inward angle of between 120 ° and 150 ° and a depth of about 20 mm． 

Keywords: liquid slag; centrifugation; dry granulation; granulat