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Hazardous waste melter

  • US 5,319,669 A
  • Filed: 01/22/1992
  • Issued: 06/07/1994
  • Est. Priority Date: 01/22/1992
  • Status: Expired due to Term
First Claim
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1. An apparatus for processing waste material comprising:

  • a vessel containing a melt, the vessel having a head space defined above the melt containing heated gases, said vessel having an inlet port for receiving feed material in said vessel, an outlet port for removing molten material from the vessel, and an exhaust port for removing off gases from the vessel;

    impeller means for mixing waste material into said melt, said impeller means being secured to a rotatable shaft disposed at least in part in said vessel and having an end portion extending outwardly away from said vessel;

    heating means for discharging electrical energy through said molten material in said vessel;

    a cover secured to the top of the vessel, said cover having an opening through which said rotatable shaft is received with said end portion extending outwardly therefrom;

    a shaft seal engaging said end portion of said rotatable shaft; and

    means for cooling said end portion of said shaft to maintain the temperature of said shaft below a level that would harm said shaft seal.

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