US 8,496,196 B2 · Asphalt material recycling system and method

Abstract

An asphalt roofing material recycling system and method is used to recycle new and used (post consumer) asphalt materials, such as asphalt shingles, rolled roofing and tar paper that may include granules, fibers or other particles. The asphalt material, which may be in bundles, is broken up and separated and then provided to a cooled recycling vessel. Dry ice is added along with the asphalt material to be recycled. The dry ice removes any moisture present and super-cools the material making it brittle and easier to chip and break up. The recycle vessel includes a number of high speed shippers having tulip hear chipping teeth as well as one horizontal mixer element which stirs the material and makes sure all material is ground. The resulting course to fine powder can be separated by screening and stored as power or compressed into bricks or briquettes.

Claims12

Dependent claims

A system for asphalt recycling, comprising:

a hopper, configured for receiving asphalt material to be recycled, said hopper coupled to a material conditioner, wherein the material conditioner includes a belt having one or more teeth, wherein the one or more teeth are configured to tear apart and separate said asphalt material to be recycled;
an asphalt material recycler, coupled to said material conditioner and configured for receiving said asphalt material torn apart and separated by said material conditioner, said asphalt material recycler having a recycling chamber, at least one motor and one or more high-speed choppers, coupled to said at least one motor and located in said recycling chamber, said high speed choppers configured for grinding said asphalt material to be recycled;
and
a sorter, coupled to said asphalt material recycler and configured for separating granules from filler and asphalt filled coating.

1 more element

Dependencies are inferred from the claim text.

Asphalt material recycling system and method

Life of this patent

Asphalt material recycling system and method

Life of this patent

Abstract

Claims12