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http://dx.doi.org/10.7844/kirr.2011.20.1.028

Study on Recycling of Refractory Materials from High-Temperature Melting Furnace by Color Sorting Technology  

Seo, Kang-Il (Depart. of Environmental Energy Eng., Seoul National University of Science and Technology)
Lee, Deok-Hee (Depart. of Environmental Energy Eng., Seoul National University of Science and Technology)
Choi, Woo-Zin (Depart. of Environmental and Energy Eng., The University of Suwon)
Jang, Jung-Hoon (IONIA E&T Co., LTD.)
Park, Eun-Kyu (IONIA E&T Co., LTD.)
Oh, Young-Gil (IONIA E&T Co., LTD.)
Publication Information
Resources Recycling / v.20, no.1, 2011 , pp. 28-36 More about this Journal
Abstract
More than 50% of refractory materials generated from high-temperature melting furnace was not carbonized and could be recycled by adopting proper separation process. In the present work, the separation of refractory materials has studied by adopting color sorting technology to promote the recycling of waste refractory. Purity of the refractory materials was obtained with at 97.2%, color temperature of sorter light source 6,500K, which gives less interference of surrounding light source. Purity and separation efficiency were improved as size is setting bigger and lower conveyer belt speed. It is revealed that optimum conditions were color temperature 6,500K, conveyer belt speed 1,000 mm/sec, particle size -20 mm, etc. To improve purity and separation efficiency on below 10mm size, the resolution of should be fixed camera and it narrow recognition range. As a result of the study, color sorting technology could be used for separation of waste refractory materials and will contribute to promote the waste recycling.
Keywords
Color sorting; Color temperature; Waste Refractory; Recycling;
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