Study of plasma remelting the slag of the incinerator
Date Issued
2006
Date
2006
Author(s)
Chang, Chih-Kuang
DOI
zh-TW
Abstract
Great amounts of slags produced from incinerators or steel-makings contain Al2O3、SiO2 and CaO. If they were not disposed properly; the environment would be contaminated. However if they were recycled for the makings of valuable products, they would not be hazardous to the environment and would also be valuable.
A slag’s composition has many similar properties as a refractory; such as good heat insulation、 less high temperature reaction with metals、and good high- temperature-corrosion resistance.
The slags, especially foaming slags, would be potential materials for the inside-home-decorations due to their good insulation of heat and blocking of noise as well as chemical inert. The foaming slags would be beneficial in case of fire for they do not produce toxic gas easily and have good heat resistance. The time for escape would be increased. Therefore they have the potential of becoming new building materials.
The nuclear research Institute has found that foaming slag would be formed during the plasma melting of waste. This brings up interest to know which conditions would be favorable to the production of foaming slag. Therefore this project is intended to study the mechanism of formation of foaming slag with plasma melting by thermodynamics and kinetics analysis.
This study will investigate the formation of foaming slag with laboratory plasma melting facilities to melt different mixtures of metal oxides with necessary fluxes.
The experiments will be carried out in plasma torch introduced with different gases and flow rates, and different graphite anode designs to examine the feasibility of slag- forming.
Subjects
電漿
發泡陶瓷
灰渣
plasma
prous ceramics
slag
Type
thesis
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