Development of a Rotary Cylinder Atomizing Method of Slag for the Production of Amorphous Slag Particles
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概要
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Carbon dioxide reduction is an important problem for steel industries. Steelmakers in Japan are trying to reuse and recycle waste energy and resources. Slag is a potential resource of energy and materials because it contains a lot of elements and is at the high temperature of around 1500°C when exhausted.The RCA (Rotary Cup Atomizing) method is a popular process in the slag atomizing method. However, when there is a slip between the slag and cup, the energy of cup rotation is not used effectively. In the present study, we developed a rotary cylinder atomizing (RCLA) method that can efficiently use the rotation energy for atomizing the molten slag. Two kinds of RCLA were developed and the slag atomizing behaviors were investigated.The minimum diameter of the slag particle was from 10 to 50% of the nozzle diameter. The obtained slag particles were amorphous spheres having high sphericity. The higher rotation speed and smaller nozzle diameter could make smaller particles.
- 2010-09-15
著者
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Akiyama Tomohiro
Center for Advanced Research of Energy Conversion Materials, Hokkaido University
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In-nami Yutaro
Graduate Student Graduate School Of Engineering Hokkaido Univ.
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Akiyama Tomohiro
Center For Advanced Research Of Energy Conversion Materials Hokkaido University
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Kashiwaya Yoshiaki
Graduate School Of Engineering Hokkaido University
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Kashiwaya Yoshiaki
Faculty Of Engineering Hokkaido University
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Kashiwaya Yoshiaki
Div. Of Materials Sci. Graduate School Of Engineering Hokkaido Univ.
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Akiyama Tomohiro
Center For Advanced Research Of Energy And Materials Faculty Of Engineering Hokkaido University
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In-nami Yutaro
Graduate School Of Engineering Hokkaido University
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Kashiwaya Yoshiaki
Graduate School Of Energy Science And Technology Kyoto University
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