Granted Patent B1

US 12,214,358 · App. 18/503,706 · Granted Feb 4, 2025

Inventors: James A Svec (Kearny, NJ); Maxwell Everett (Parsippany, NJ)

Assignee: BMIC LLC

B02C19/0056B09B3/50C08L95/00C09D195/00C08L2555/34

Abstract

Claims (43)

1. A method comprising:

obtaining an asphalt shingle waste;

feeding the asphalt shingle waste at a first temperature to an inlet of a microwave dryer;

exposing the asphalt shingle waste to microwaves emitted by the microwave dryer;

discharging the asphalt shingle waste at a second temperature at an outlet of the microwave dryer,

wherein the second temperature is a temperature of 140° F. or less;

wherein a moisture content of the asphalt shingle waste at the outlet of the microwave dryer is less than a moisture content of the asphalt shingle waste at the inlet of the microwave dryer; and

processing the asphalt shingle waste.

2. The method of claim 1 ,

wherein the asphalt shingle waste at the inlet of the microwave dryer has a moisture content of 2% to 20% by weight based on a total weight of the asphalt shingle waste;

wherein the asphalt shingle waste at the outlet of the microwave dryer has a moisture content of 0.1% to 2% by weight based on the total weight of the asphalt shingle waste.

3. The method of claim 1 , wherein the second temperature is within 20% of the first temperature.

4. The method of claim 1 , wherein the asphalt shingle waste comprises waste asphalt, limestone, granules, and impurities.

5. The method of claim 1 , wherein the processing comprises forming the asphalt shingle waste into an asphalt shingle waste powder.

6. The method of claim 1 , wherein the processing comprises forming the asphalt shingle waste into a plurality of briquettes.

7. The method of claim 1 , wherein the processing comprises forming the asphalt shingle waste into an asphalt shingle waste filled coating.

8. A method comprising:

obtaining an asphalt shingle waste;

feeding the asphalt shingle waste at a first temperature to an inlet of a microwave dryer;

exposing the asphalt shingle waste to microwaves emitted by the microwave dryer so as to reduce a moisture content of the asphalt shingle waste;

discharging the asphalt shingle waste at a second temperature at an outlet of the microwave dryer,

wherein the second temperature is a temperature of 140° F. or less;

wherein an average particle size of the asphalt shingle waste at the outlet of the microwave dryer is within 10% of an average particle size of the asphalt shingle waste at the inlet of the microwave dryer; and

processing the asphalt shingle waste.

9. The method of claim 8 , wherein the average particle size of the asphalt shingle waste at the outlet of the microwave dryer is within 5% of the average particle size of the asphalt shingle waste at the inlet of the microwave dryer.

10. The method of claim 8 , wherein the second temperature is within 20% of the first temperature.

11. The method of claim 8 , wherein the asphalt shingle waste comprises waste asphalt, limestone, granules, and impurities.

12. The method of claim 8 , wherein the processing comprises forming the asphalt shingle waste into an asphalt shingle waste powder.

13. The method of claim 8 , wherein the processing comprises forming the asphalt shingle waste into a plurality of briquettes.

14. The method of claim 8 , wherein the processing comprises forming the asphalt shingle waste into an asphalt shingle waste filled coating.

15. A method comprising:

obtaining a plurality of briquettes,

wherein the plurality of briquettes comprises an asphalt shingle waste;

feeding the plurality of briquettes at a first temperature to an inlet of a microwave dryer;

exposing the plurality of briquettes to microwaves emitted by the microwave dryer; and

discharging the plurality of briquettes at a second temperature at an outlet of the microwave dryer,

wherein the second temperature is a temperature of 140° F. or less;

wherein a moisture content of the plurality of briquettes at the outlet of the microwave dryer is less than a moisture content of the plurality of briquettes at the inlet of the microwave dryer.

16. The method of claim 15 , further comprising forming the plurality of briquettes into an asphalt shingle waste filled coating.

17. The method of claim 15 , further comprising feeding the plurality of briquettes, an asphalt coating, and at least one filler material into a mixer; and mixing the plurality of briquettes the asphalt coating, and the at least one filler material in the mixer.

18. The method of claim 17 , wherein the asphalt coating comprises at least one of an oxidized asphalt, a polymer-modified asphalt, or any combination thereof.

19. The method of claim 15 , wherein the plurality of briquettes has an average dimension in a range of 0.5 inches to 2 inches.

20. The method of claim 15 , wherein the moisture content of the plurality of briquettes at the outlet of the microwave dryer 30% to 99% less than the moisture content of the plurality of briquettes at the inlet of the microwave dryer.

Assignments (2)

Continuity (1)

References Cited (82)