Furnaces – Refuse incinerator – Refuse supported above grate
Patent
1995-04-24
1996-04-09
Wolfe, Willis R.
Furnaces
Refuse incinerator
Refuse supported above grate
110256, 110259, 110346, 110210, 110216, F23G 502, F23G 514, F23G 524, F23L 700
Patent
active
055051456
ABSTRACT:
The invention relates to a process for burning waste with simultaneous regeneration of a usable gas and an inert solid residue in which the waste is fed into the upper part of an upright shaft furnace, an oxygen-containing gas is fed into the lower part of the furnace, the organic part of the waste substances is gasified and pyrolyzed, the inorganic part of the waste substances is made flowable, the gas from the upper part of the furnace is taken off and the inorganic material made flowable is taken off at the lower part of the furnace. In order to achieve secondary treatment of the solid and gaseous combustion residues without high expenditure in terms of apparatus, according to the invention the waste is loaded as a charge (3) on a grate (5) provided in the shaft furnace (2), a fuel-oxygen mixture or a fuel-oxygen-air mixture is used as oxygen-containing gas and is introduced into the shaft furnace (2) and oxidized beneath the grate (5), above the grate (5) pure or technical-grade oxygen or air enriched with pure or technical-grade oxygen is injected into the waste charge (3) as oxidizing medium and the waste (3) if appropriate together with combustion residues is burned preferably at temperatures of 1400 to 1600.degree. C. (FIG. 1).
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Gross Gerhard
Lichtmann Frank
Messer Griesheim GmbH
Wolfe Willis R.
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