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On the composite characteristics of small binary granules formed in a continuous rotating conical vessel with grinding media
Affiliation:1. Department of Mechanical Engineering, Lund University, Lund, Sweden;2. Department of Product Realisation, Mälardalen University, Eskilstuna, Sweden;1. Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan;2. Graduate School of Environmental Studies, Tohoku University, 468-1, Aramakiazaaoba, Aoba-ku, Sendai, Miyagi 980-0845, Japan;3. Magnetic Powder Metallurgy Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya, Aichi 463-8560, Japan;1. DryProTech Lab., Chemical Engineering, Indian Institute of Technology Gandhinagar, Palaj 382355, Gujarat, India;2. Advanced Centre for Energetic Materials, Defence Research and Development Organization, Nasik 422009, Maharashtra, India;1. School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;2. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China;3. Metrological Verification and Testing Center of Zhenjiang, Jiangsu, Zhenjiang 212000, Jiangsu, China
Abstract:In order to produce small composite granules having binary components of CaCO3 and SiC powders, experiments were carried out by the simultaneous operation of granulation, grinding, and separation in a single continuous rotating conical vessel with grinding media. To characterize these composite granules, SiC agglomerates contained in a granule were separated by chemical methods, and the size distributions of granules and SiC agglomerates were measured by an image analyzer through a microscope. The structure of a composite granule was characterized by comparing the size of a composite granule with that of SiC agglomerates in the granule. It was found that composite structures of the granules could be classified into six kinds of structural models, and that the composite structure depended on the size of the granules and the volume fraction of the SiC component in the granule.
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