Investigation on the granulation behavior of iron ore fine in a horizontal high-shear granulator
作者机构：College of Materials Science and EngineeringChongqing UniversityChongqing 400044China Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New MaterialsChongqing UniversityChongqing 400044China State Key Laboratory of Advanced Special SteelShanghai Key Laboratory of Advanced FerrometallurgySchool of Materials Science and EngineeringShanghai UniversityShanghai 200444China State Key Laboratory of Mechanical TransmissionsChongqing UniversityChongqing 400044China
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2022年第20卷第9期
页 面：57-64页
核心收录：
学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学]
基 金：supported by the National Natural Science Foundation of China(grant Nos.51974048,52004046) China Postdoctoral Science Foundation(grant Nos.2021T140783,2020M673131) the Postdoctoral Science Foundation of Chongqing(grant No.cstc2020jcyj-bshX0030)
主 题：High shear granulation Iron ore Particle Size distribution
摘 要：High-shear granulation is widely used in many particulate industries for its good capability to improve the size,strength and composition uniformity of powder *** work conducted an experimental study to investigate the granulation behavior of iron ore fine in a horizontal high-shear granulator,such as granules size distribution,granules growth rate,and permeability of the granules *** results show that the granule size and permeability of packed granules bed increase gradually with increasing the granulation time,and the growth of granules can be divided into three stages:the rapid growth stage,the slow growth stage and the relatively stable *** the higher rotational speed and larger number of impellers increase the kinetic energy and collision frequency of the particles,which causes the increase of average granule size,growth rate and permeability of granules packed *** the other hand,the shear damage effect of the impellers on the granules is also enhanced with the increase of rotational speed and impeller number,resulting in significant granule size segregation.
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