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Title: Operating an induction melter apparatus

Abstract

Apparatus and methods of operation are provided for a cold-crucible-induction melter for vitrifying waste wherein a single induction power supply may be used to effect a selected thermal distribution by independently energizing at least two inductors. Also, a bottom drain assembly may be heated by an inductor and may include an electrically resistive heater. The bottom drain assembly may be cooled to solidify molten material passing therethrough to prevent discharge of molten material therefrom. Configurations are provided wherein the induction flux skin depth substantially corresponds with the central longitudinal axis of the crucible. Further, the drain tube may be positioned within the induction flux skin depth in relation to material within the crucible or may be substantially aligned with a direction of flow of molten material within the crucible. An improved head design including four shells forming thermal radiation shields and at least two gas-cooled plenums is also disclosed.

Inventors:
; ; ;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175637
Patent Number(s):
6993061
Application Number:
10/703,879
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23G - CREMATION FURNACES
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Roach, Jay A., Richardson, John G., Raivo, Brian D., and Soelberg, Nicholas R.. Operating an induction melter apparatus. United States: N. p., 2006. Web.
Roach, Jay A., Richardson, John G., Raivo, Brian D., & Soelberg, Nicholas R.. Operating an induction melter apparatus. United States.
Roach, Jay A., Richardson, John G., Raivo, Brian D., and Soelberg, Nicholas R.. Tue . "Operating an induction melter apparatus". United States. https://www.osti.gov/servlets/purl/1175637.
@article{osti_1175637,
title = {Operating an induction melter apparatus},
author = {Roach, Jay A. and Richardson, John G. and Raivo, Brian D. and Soelberg, Nicholas R.},
abstractNote = {Apparatus and methods of operation are provided for a cold-crucible-induction melter for vitrifying waste wherein a single induction power supply may be used to effect a selected thermal distribution by independently energizing at least two inductors. Also, a bottom drain assembly may be heated by an inductor and may include an electrically resistive heater. The bottom drain assembly may be cooled to solidify molten material passing therethrough to prevent discharge of molten material therefrom. Configurations are provided wherein the induction flux skin depth substantially corresponds with the central longitudinal axis of the crucible. Further, the drain tube may be positioned within the induction flux skin depth in relation to material within the crucible or may be substantially aligned with a direction of flow of molten material within the crucible. An improved head design including four shells forming thermal radiation shields and at least two gas-cooled plenums is also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {1}
}

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