초록 ▼

An asphalt based material recycling system and method is used to recycle asphalt materials, such as asphalt shingles and tar paper that include granules, fibers or other particles. The asphalt material is simultaneously heated and milled in a heated milling apparatus, such as a heated ball mill, to

An asphalt based material recycling system and method is used to recycle asphalt materials, such as asphalt shingles and tar paper that include granules, fibers or other particles. The asphalt material is simultaneously heated and milled in a heated milling apparatus, such as a heated ball mill, to reduce the asphalt material including granules to a fine mesh in suspension in liquid asphalt. Excess moisture is removed from the asphalt material being recycled by continuously venting the heated milling apparatus. The heated milling apparatus preferably includes a rotatable milling vessel rotated at an acute angle with respect to the horizontal plane and having an opening that provides continuous venting. The shape of the milling vessel allows the liquid level inside the milling vessel to have a liquid head above the outlet region of the milling vessel, for facilitating milling. The rotatable milling vessel includes a plurality of mixing members, such as rods or paddles, extending from an interior surface to enhance milling and to pull the asphalt material being recycled under and into the liquid slurry. The asphalt material recycling system further includes a filter apparatus for filtering reduced asphalt and removing foreign objects therefrom.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of recycling asphalt material, comprising the steps of:simultaneous heating and milling said asphalt material in a heated milling apparatus, wherein said heated milling apparatus includes milling elements for grinding and reducing said asphalt material; andaddi

[ What is claimed is:] [1.]1. A method of recycling asphalt material, comprising the steps of:simultaneous heating and milling said asphalt material in a heated milling apparatus, wherein said heated milling apparatus includes milling elements for grinding and reducing said asphalt material; andadding liquid asphalt to said asphalt material during heating and milling to form a liquefied recycled asphalt material.