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METHOD FOR THE VITRIFICATION PROCESSING OF HARMFUL FIBRE WASTE, PARTICULARLY ASBESTOS-CONTAINING WASTE FROM BUILDINGS, AND PLANT THEREFOR
METHOD FOR THE VITRIFICATION PROCESSING OF HARMFUL FIBRE WASTE, PARTICULARLY ASBESTOS-CONTAINING WASTE FROM BUILDINGS, AND PLANT THEREFOR
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机译:建筑物有害纤维废料,特别是含石棉废料的玻璃化处理方法及其工厂
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摘要
A method and a plant for the vitrification processing of harmful fibre waste, particularly asbestos-containing waste from buildings, are disclosed. The waste to be processed is first coarsely ground and mixed to give a mass in which the fuel fraction is substantially uniformly distributed, whereafter the mass (9) is preheated (10) substantially to 800-1000 °C to cause combustion of the plastic and other materials in the mass, evaporate the water, and at least partially oxidise the metals. The preheated mass is fed into a melting chamber (12) to form a melt at around 1400 °C. The remaining metal fragments in the mass are allowed to settle in a solid or pasty state in an upstream portion (16) of the melt, while the vitrified fraction continuously flows towards a downstream portion (17) of said melt and is recovered by casting after processing.
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