초록 ▼

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 w

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.

대표청구항 ▼

I claim: 1. A waste vitrification apparatus for vitrifying a feed stream having vitrifiable materials and waste materials comprising: a vessel at least partially formed of an electrically conductive material containing a glass melt and defining a mixing zone; a mixing impeller at least partially f

I claim: 1. A waste vitrification apparatus for vitrifying a feed stream having vitrifiable materials and waste materials comprising: a vessel at least partially formed of an electrically conductive material containing a glass melt and defining a mixing zone; a mixing impeller at least partially formed of an electrically conductive material; a drive shaft extending into said mixing zone of said vessel, said impeller being connected to said drive shaft; means for rotating the drive shaft and said impeller in said mixing zone to disperse the constituents of the feed stream into the glass melt; means for creating electrical current flow between the vessel and said impeller sufficient to heat the feed stream until the vitrifiable material melts to a liquid state forming a solidifiable output including the waste material and the melted vitrifiable material; a settling zone in fluid flow communication with the mixing zone; and an outlet opening through which said solidifiable output is ported for cooling and solidification. 2. The apparatus of claim 1 wherein said settling zone is provided in the same vessel containing said mixing zone. 3. The apparatus of claim 1 wherein said settling zone is provided in the same vessel as the mixing zone and is disposed below the mixing zone. 4. The apparatus of claim 1 wherein said settling zone is provided in a separate vessel from said vessel containing said mixing zone.