Furnaces – Process – Incinerating refuse
Patent
1995-03-21
1996-10-01
Bennett, Henry A.
Furnaces
Process
Incinerating refuse
110246, 588 11, F27B 712, B09B 300
Patent
active
055603041
ABSTRACT:
A process for the vitrification of products in the form of solid pieces or particles without the release of dust as a pollutant, according to which there is used a furnace (3) provided with a burner (15). There are introduced into the furnace the products to be vitrified, and the products are permitted to heat in the furnace until they form a liquid or pasty vitreous mass, then this vitreous mass is removed from the furnace and permitted to cool. The internal walls of the furnace are preheated with the burner to a temperature exceeding the temperature at which the products to be vitrified can form a liquid or pasty vitreous mass, then the energy supplied by the burner is reduced substantially or even cut off, before introducing waste into the furnace. The products are heated principally by receiving the heat transmitted from the internal walls of the furnace until all of the product is in the form of a liquid or pasty mass, the burner being maintained at reduced power or even shut off at least until this time. Then the products are discharged from the furnace. If desired, when all of the product has achieved the form of a pasty mass, the power of the burner is again increased until the product will be fairly fluid to permit its easy evacuation.
REFERENCES:
patent: 4846083 (1989-07-01), Serbent
patent: 4898692 (1990-02-01), Rajan et al.
patent: 5005493 (1991-04-01), Gitman
Duchateau Eric
Kloers Eberhard
Vigorelli Angelo
Bennett Henry A.
L'air Liquide, Societe Anonyme Pour L'etude et L'exploitation de
Sogemi - Societa Generale Macchine Impianti
Tinker Susanne C.
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