Furnaces – Refuse incinerator – Rotary drum
Patent
1981-03-06
1982-09-21
Favors, Edward G.
Furnaces
Refuse incinerator
Rotary drum
110212, 110214, 414149, 432 72, 432106, F23G 506
Patent
active
043501028
ABSTRACT:
A rotatable drum is equipped at a front end with a burner for liquid waste materials and at a rear end has a tiltable charging mechanism for solid waste materials and waste materials stored in barrels. The rear end of the drum is sealed by a fixed casing enveloping the charging mechanism. Adjacent that end there is a gas outlet projecting through a dome-like gas inlet connection of a fixed secondary combustion chamber. The drum shell is stepped such that a refractory lining of the semicylindrical lower drum part cooled by means of water spray nozzles is thinner than a refractory brick material of the semicylindrical drum upper part by an amount equal to the depth of the drum step. Due to rotationally reciprocating or rocking movement of the drum, the waste materials undergo pyrolysis, the pyrolysis gases flowing through a gas outlet into the secondary combustion chamber. In the case of a particularly high combustion speed of the waste materials, the combustion air is blown in through combustion chamber nozzles, instead of through the drum burners. This displaces the combustion process into the secondary combustion chamber, which leads to a temperature drop in the drum and to a slowing down of the pyrolysis of the material to be burned. As a result of a drum emptying rotation of 180.degree., the combustion residues melted by means of the drum burner are discontinuously removed through the gas outlet.
REFERENCES:
patent: 3785306 (1974-01-01), Jaget
patent: 3906874 (1975-09-01), Jaromko et al.
patent: 4313712 (1982-02-01), Seglias
Favors Edward G.
Von Roll AG
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