Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Analysis of Energy and Material Balance in Smelting Process of Waste Sand

폐주물사의 용융공정에서의 물질 및 에너지 수지의 해석

  • Chung, Won-Sub (Dept. of Metallurgical Engineering, Pusan National University) ;
  • Min, Dong-Jun (Dept. of Metallurgical Engineering, Yonsei University) ;
  • Yoon, Su-Jong (Dept. of Materials Science & Engineering, Miryang University)
  • 정원섭 (부산대학교 공과대학 금속공학과) ;
  • 민동준 (연세대학교 공과대학 금속공학과) ;
  • 윤수종 (밀양산업대학교 이공학부 재료공학과)
  • Published : 1995.10.20
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Abstract

A computer simulation model of various smelting process for melting waste sand was developed by using energy and material balance concept. This model can predict the coal, flux and oxygen consumption and the volume and temperature of off-gas. The major critical variables for smelting process can be explained by using the analysis of energy and material balance. The major conclusions were as follows; 1. The most important variables for smelting process were high post-combustion ratio, high heat transfer efficiency and refractory protection technology. 2. For saving energy in this smelting process, selection of raw materials i.e coal, flux are very important, espacially using of low volatile coal is very profitable. 3. The treatment cost of waste sand is high and environmental restriction is severe, in this reason we must be concerned in the treatment of waste sand by smelting process.

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