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Facility for melting residues from municipal waste combustion: design criteria and description of equipment.

Authors
Hartman-AD; Oden-LL; White-JC
Source
Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 9476, 1993 Jan; :1-10
NIOSHTIC No.
10004316
Abstract
The U.S. Bureau of Mines, under a Memorandum of Agreement with the American Society of Mechanical Engineers (ASME), established design criteria for a facility to melt residues from municipal waste combustion. The facility, which is available to potential users on a cost-sharing basis, is also applicable to a variety of inorganic waste materials from smelting or melting operations. The design consists of a mechanical feed handling system, electric arc melting furnace, fume-offgas handling system, and thermal oxidizer for final offgas treatment. Screw conveyors and a bucket elevator deliver up to 2,000 lb/h of minus 1-in material to a three-phase electric arc melting furnace. This unique 800-kV. A furnace has a water-cooled shell and roof to minimize interaction of the melt with the refractory lining. The volume of the hearth below the slag taphole is approximately 1.2 st of steel. The furnace is sealed, allowing atmosphere control within the furnace and fume duct by nitrogen or inert gas injection. A jetpulsed baghouse removes particulate from the offgas and serves as an acid gas scrubber. The clean offgas is heated to 1,8000 F for 1 s in a propane-fired thermal oxidizer before being vented to the atmosphere.
Keywords
Waste-disposal; Waste-disposal-systems; Incinerators; Furnaces
Publication Date
19930101
Document Type
Report of Investigations
Fiscal Year
1993
NTIS Accession No.
PB94-111283
NTIS Price
A03
Identifying No.
RI-9476
NIOSH Division
ALRC
Source Name
Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 9476
State
OR
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