Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Asphalt shingle recycling system and method

a technology of asphalt shingle and recycling system, which is applied in the direction of working up pitch/asphalt/bitumen by melting, and applications, etc., can solve the problems of air pollution from existing recycling processes, high cost of liquid asphalt cement, and difficulty in regulating the consistency of asphalt pavement composition, etc., to achieve high degree of consistency

Inactive Publication Date: 2010-03-18
HARMON THOMAS B +1
View PDF15 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The patent describes a system and method for recycling asphalt roofing material by heating it and liquefying it to produce a slurry that can be formed into a finished product. The process is consistent and produces a high-quality product. The system includes a treatment chamber, an inlet for delivering untreated material, an outlet for removing the treated material, and a jacket to contain the heat source. The asphalt roofing material can be heated to a temperature of 200 degrees Fahrenheit to 650 degrees Fahrenheit within the treatment chamber. The slurry can then be cooled and passed through a hammer mill before being used. The system can also include a screw conveyor for delivering the material to the processor. The technical effects of this patent include improved recycling of asphalt roofing material, consistent quality of the recycled product, and reduced air emissions."

Problems solved by technology

Liquid asphalt cement can be expensive.
It is difficult to regulate the consistency of the asphalt pavement composition using shredded asphalt roofing shingles produced by existing recycling processes.
Also, air emissions from existing recycling processes can be detrimental to the atmosphere.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Asphalt shingle recycling system and method
  • Asphalt shingle recycling system and method
  • Asphalt shingle recycling system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029]Referring now to FIGS. 1-5, an illustrative embodiment of an asphalt roofing shingle recycling system and method is provided. Scrap asphalt shingles (not shown) are collected and deposited in hopper 10. Hopper 10 is preferably of carbon steel construction and may have at least a three cubic yard storage capacity. In a specific embodiment, hopper 10 can have hinged doors 11 at or near its top end 12 through which scrap asphalt shingles may be loaded. Alternatively, scrap asphalt shingles may be loaded into hopper 10 by other means not requiring the use of hinged doors 11 as shown in the embodiment of FIG. 6, or by any feed, loader, or supply device capable of supplying scrap asphalt shingles into the shingle recycling system.

[0030]The contents of hopper 10 can empty onto a screw conveyer 20 by opening bottom doors 13. Screw conveyer 20 preferably has at least a ten ton-per-hour capacity and may be driven by any suitable motor, such as a variable frequency drive (“VFD”) motor, w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
temperatureaaaaaaaaaa
temperatureaaaaaaaaaa
temperatureaaaaaaaaaa
Login to View More

Abstract

A method of recycling asphalt roofing material is provided. The asphalt roofing material is delivered into a treatment chamber of a processor. A heat source is provided to the treatment chamber. Heat energy is transferred from the heat source to the asphalt roofing material to produce a heated product, and the heated product is removed from the treatment chamber.

Description

RELATED APPLICATIONS[0001]This application claims the benefit, and priority benefit, of U.S. Patent Application Ser. No. 61 / 069,435, filed Mar. 14, 2008, titled “Asphalt Shingle Recycling System and Method.”BACKGROUND[0002]1. Field of Invention[0003]The invention relates generally to recycling of asphalt shingles, and in particular, to a system and method for recycling of asphalt shingles utilizing heat treatment.[0004]2. Description of the Related Art[0005]Asphalt concrete pavement is commonly used in roadway construction. The asphalt concrete pavement typically comprises liquid asphalt cement combined with aggregate. The aggregate is usually a mixture of sand, gravel, and stone. The aggregate and liquid asphalt cement are mixed and heated to form an asphalt paving composition. The crushed gravel and stone particles of the aggregate provide sharp edges which, when combined with the liquid asphalt cement, create an aggregate interlock which improves the strength of the composition.[...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): C09D195/00C08J11/06B02C25/00
CPCB09B3/00B29B17/04B29C47/00B29C47/0009B29K2095/00E01C19/104B29L2031/108C08L95/00C10C3/007C10C3/12E01C19/1004B29K2105/251B29C48/00B29C48/03Y02W30/62
Inventor HARMON, THOMAS B.FREY, KIRK J.
Owner HARMON THOMAS B
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com