METHOD AND APPARATUS FOR WASTE VITRIFICATION

A waste vitrification apparatus ( 10 ) having rotatable mixer impeller ( 16 ) functioning as a shaft electrode ( 60 ) and metallic vessel ( 14 ) functioning as a vessel electrode ( 62 ). A stream ( 12 ) of waste material and vitrifiable material are mixed and melted in the vessel ( 14 ) for vitrific...

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Bibliographische Detailangaben
1. Verfasser:	RICHARDS, RAY, S
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY DECONTAMINATION ARRANGEMENTS THEREFOR GLASS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:	A waste vitrification apparatus ( 10 ) having rotatable mixer impeller ( 16 ) functioning as a shaft electrode ( 60 ) and metallic vessel ( 14 ) functioning as a vessel electrode ( 62 ). A stream ( 12 ) of waste material and vitrifiable material are mixed and melted in the vessel ( 14 ) for vitrification. The waste vitrification method converts a feed stream ( 12 ) by mixing the feed stream into a glass melt ( 13 ) and melting glass batch of the feed stream ( 12 ) to form a foamy mass. The stream is dispersed by the impeller ( 16 ) to form a foam which is then densified in a settling zone ( 22 ), recovered through a spout ( 24 ) and solidified in storage containers. Means are provided to adjust the location of the mixing impeller ( 16 ) in the vessel ( 14 ) to change the depth of the settling zone ( 22 ). The impeller ( 16 ) is mounted on a drive shaft ( 18 ) having a recirculating coolant flow.