인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
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커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록·키워드
Fine aggregates of mineral products, waste concrete, and waste in the general industry can be segregated according to aggregate size by using separators, i.e. sorting machines. The various types of separators used in the industrial field can be categorized based on the principle of operation such as centrifugal force, wind power, vibration and magnetic force. In this study, we consider a dry separator of new concept which consists of a rotor with three stages of rotating blades. The air flow and particle tracking is analysed numerically to understand the behavior of waste concrete particles as they pass through the rotor blades. Intention of this work is to investigate the fundamental mechanism of particle separation from the developed separator and investigate its performance.
We consider both 2D and 3D models with 360, 240 and 180 blades in each stage of the rotor. Due to the axi-symmetry, only 6 degree sector of the entire domain is considered as the computational domain. The models are tested for various particle size, the rotor speed and the air flow rate. We found that the rotor plays a significant role in the particle separation. In particular, both the upstream and downstream ends of the rotor blades cause the particles to be stagnant there via balance between the air drag and centrifugal forces. We also present the critical size of particles that can be separated with the existing design of the separator.
We consider both 2D and 3D models with 360, 240 and 180 blades in each stage of the rotor. Due to the axi-symmetry, only 6 degree sector of the entire domain is considered as the computational domain. The models are tested for various particle size, the rotor speed and the air flow rate. We found that the rotor plays a significant role in the particle separation. In particular, both the upstream and downstream ends of the rotor blades cause the particles to be stagnant there via balance between the air drag and centrifugal forces. We also present the critical size of particles that can be separated with the existing design of the separator.
본문·목차
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UCI(KEPA) : I410-ECN-0101-2016-550-002168992
