Conversion tank for recycling asphaltic shingle tabs
AssigneesStephen R. Babus, George T. Tucker
InventorsStephen R. Babus, George T. Tucker
Life of this patent
Estimating the term…
Abstract
An apparatus for and a method of recycling asphaltic waste shingles. The apparatus includes an elongated conversion tank into which an asphaltic oil, preferably preheated, and shingle tabs are admitted. The shingle tabs are dissociated into substantially liquified and solid shingle materials. The dissociated shingles are agitated with the asphaltic oil to form a slurry which can be drawn off and discharged to a work station. During the agitation, the substantially solid shingle materials are shredded to reduce their size. Preferably, the asphaltic oil is of a higher penetration grade than the asphaltic content of the shingles when in a substantially liquified form.
Claims23
An apparatus for recycling asphaltic waste material comprising:
- a. a tank having an inlet and an outlet, said inlet allowing for passage into said tank of the asphaltic waste material;
- b. means for initially injecting a predetermined amount of weight of an asphaltic oil into said tank, said asphaltic oil having a grade of penetration greater than the asphaltic content of the waste material when in a substantially liquified form;
- c. means for monitoring the weight of the contents of said tank such that a predetermined ratio of the amount by weight of asphaltic waste material to that of asphaltic oil is achieved upon selective admission of the amount of asphaltic waste material into said tank;
- d. means for heating said asphaltic oil and the asphaltic waste material within said tank to form a slurry, the asphaltic waste material being dissociated into substantially liquified asphaltic waste material and substantially solid asphaltic waste material;
- e. means for agitating said slurry within said tank so as to intermix said asphaltic oil and substantially liquified and solid asphaltic waste material;
- and
- f. means for discharging said slurry from said tank through said outlet.
A conversion tank for recycling waste asphaltic shingles in a solid form for use in roadway construction, comprising:
- a. an elongated tank having an inlet disposed at an upper portion of one end of said tank and an outlet disposed at a lower portion of the other end of said tank, said tank defining therein a first station adjacent said inlet and a communicating second station adjacent said outlet, said inlet allowing for passage of the shingles into said tank;
- b. means for injecting into said tank a predetermined amount by weight of an asphaltic oil being of a lighter viscosity grade than the asphaltic content of the shingles when in a substantially liquified form;
- c. means for heating said asphaltic oil and the shingles at least at said first station into a slurry, the shingles being dissociated into substantially liquified shingle material and substantially solid shingle material, said slurry passing from said first to said second station;
- d. means for agitating said slurry within said tank so as to intermix said asphaltic oil and substantially liquified and solid shingle material, said agitating means adapted for shredding the substantially solid shingle material into portions of a smaller sized dimension;
- e. means for discharging said slurry from said tank through said outlet;
- and
- f. means for returning at least a portion of said discharged slurry to said tank.
Dependencies are inferred from the claim text.