| 简介 |
The present invention concerns a method and a facility for the continuous vitrification of fibrous materials, in particular asbestos and/or asbestos materials. According to the invention, this method comprises the following steps : - preparing a glass melt (20) at a temperature of 1300 to 1600°C; - introducing, into said glass melt, said fibrous materials and, optionally, melt additives chosen such that said melt has, after the addition of said fibrous materials and melt additives, the following composition : - Si0 2 : between 30 and 55 %; - FeO : between 25 and 45 %; - alkaline and alkaline earth oxides : between 15 and 25 %; - injecting, under pressure, an oxidiser and a fuel into said melt by means of at least one nozzle (5), one end of which is submerged in said melt; said oxidiser being introduced in a molar quantity greater than or equal to the molar quantity of fuel necessary in order to keep the temperature of the melt between 1300 and 1600°C; and - lowering the temperature of at least a portion of the glass melt in order to make it solid. Application : treatment of fibrous waste, in particular waste asbestos material |
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