Method and plant for the treatment of contaminated soils and sim

Details Method and plant for the treatment of contaminated soils and sim Method and plant for the treatment of contaminated soils and sim

1987-07-10

1988-06-14

Favors, Edward G.

Furnaces

Process

Incinerating refuse

110232, 110236, 110347, 241DIG10, F23G 500

Patent

active

047504366

ABSTRACT:
In order to create a technically more effective and more economical method of decontamination by which complete decomposition of all injurious substances is obtained in simple fashion, it is proposed, in connection with a method and a plant for the treatment of contaminated soils, that the drying can be combined in a mill passed through by hot gases with a crushing of the material to a particle size of 0 to 10 mm, that after the drying the material, together with the gaseous phase, be treated in the form of a solid/gas dispersion in a heating and decontamination path with burner, with a temperature within the range of 800.degree. C. to 1200.degree. C. and then be separated in a cyclone separator stage from the gaseous phase which contains all injurious substances, said phase being recycled with the burner for the complete decomposition of the injurious substances, a partial stream of the combustion gases being fed to the combined drying and comminuting stage and the purified solids being removed after a cooling the cooling air of which is fed to the burner as preheated primary air.

REFERENCES:
patent: 3250016 (1966-05-01), Agarwal
patent: 4648333 (1987-03-01), Mudd et al.
patent: 4667609 (1987-05-01), Hardison et al.

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