A novel harmless MSW disposal, incineration technology with direct gasification and ash melting was developed, with experimental investigation. The technological process can be represented as: the pretreated MSW was put into an incinerator and incinerated in a molten bath under reduction atmosphere at a temperature range from 1300°C to 1500°C. In order to maintain the stability of the combustion process, it is needed to blast combustion-supporting coal powder from the bottom of the incinerator. Combustible gases were leaded and burned completely in a secondary swirled combustion chamber, and the heat was recycled and come into utilization. In some cases, molten slag and alloy were discharged from a same slag notch, and then they were quenched and separated each other. In other cases, melted slag and alloy were discharged from two different notches, and quenched in their own quenching pool. In both the former and the later case, the alloy was recycled and the melted slag can be used as construction materials in the same way. Experimental results form an industrial-scale pilot plant show that the investments of capital construction and running cost of this incineration system are only 65–85 percent of those of the similar types incinerator developed by western countries. It is necessary to point that 99.8 percent of dioxins involved in primary MSW were decomposed, and the dioxins content in exhausted gases and melted slag were lower than 0.01ng-TEQ/Nm3 and 0.0012ng-TEQ/g respectively.
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ASME 2005 Power Conference
April 5–7, 2005
Chicago, Illinois, USA
Conference Sponsors:
- Power Division
ISBN:
0-7918-4182-0
PROCEEDINGS PAPER
Experimental Research on Harmless Technology of Municipal Solid Waste Incineration With Direct Gasification and Ash Melting Available to Purchase
Hua Wang,
Hua Wang
Kunming University of Science and Technology, Kunming, P. R. China
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Fang He,
Fang He
Kunming University of Science and Technology, Kunming, P. R. China
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Jianhang Hu,
Jianhang Hu
Kunming University of Science and Technology, Kunming, P. R. China
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Guirong Bao
Guirong Bao
Kunming University of Science and Technology, Kunming, P. R. China
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Hua Wang
Kunming University of Science and Technology, Kunming, P. R. China
Fang He
Kunming University of Science and Technology, Kunming, P. R. China
Jianhang Hu
Kunming University of Science and Technology, Kunming, P. R. China
Guirong Bao
Kunming University of Science and Technology, Kunming, P. R. China
Paper No:
PWR2005-50337, pp. 1449-1452; 4 pages
Published Online:
October 27, 2008
Citation
Wang, H, He, F, Hu, J, & Bao, G. "Experimental Research on Harmless Technology of Municipal Solid Waste Incineration With Direct Gasification and Ash Melting." Proceedings of the ASME 2005 Power Conference. ASME 2005 Power Conference. Chicago, Illinois, USA. April 5–7, 2005. pp. 1449-1452. ASME. https://doi.org/10.1115/PWR2005-50337
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