Combined asphalt plant and soil remediation system

Details Combined asphalt plant and soil remediation system Combined asphalt plant and soil remediation system

1993-11-12

1995-01-03

Jenkins, Robert W.

Agitating

Mortar mixer type

Methods

366 25, B28C 520

Patent

active

053780590

ABSTRACT:
An apparatus and method for heating and drying stone aggregate used in the production of asphalt, which also remediates and disposes of contaminated soil. Aggregate is introduced into a drum chamber of a fixed sleeve rotary drum mixer for heating. The aggregate is discharged into an annular chamber and mixed with contaminated soil that has been processed to be suitable for use in asphalt. As the soil is heated, the contaminants are vaporized and drawn into the drum chamber where they are oxidized by high temperature. Secondary aggregate in the form of recycled asphalt pavement (RAP) and/or virgin aggregate are also added to the annular chamber and mixed with the aggregate and soil to form asphalt and to cool the aggregate/soil mixture.

REFERENCES:
patent: 3999743 (1976-12-01), Mendenhall
patent: 4867572 (1989-09-01), Brock et al.
patent: 5129334 (1992-07-01), Mize
patent: 5173115 (1992-12-01), Glynn
patent: 5176445 (1993-01-01), Mize
patent: 5273355 (1993-12-01), May et al.

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