The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 1988
Filed:
Jul. 10, 1987
O&K Orenstein & Kopel, DEX, US;
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.