Stoves and furnaces – Melting furnaces
Patent
1999-01-08
2000-05-23
Yeung, James C.
Stoves and furnaces
Melting furnaces
1263435R, 432 72, 422182, 110212, 110214, E01C 1945, F24H 100
Patent
active
060654694
ABSTRACT:
An emission control system for an asphalt kettle combines a number of features to increase efficiency and convenience of operation, while minimizing potential safety hazards. The asphalt kettle is connected via a duct to a separate afterburner device equipped with a fan. This fan pulls fumes from a hood of the kettle through the duct to the afterburner device. The fan then pushes the fumes into a combustion chamber housed in the afterburner device. The combustion chamber includes an air port having an outlet proximate to the burner for furnishing a supply of fresh air to the flame to prevent its being extinguished by the rapid movement of gas through the combustion chamber. The afterburner device may include a one-way valve that prevents backdraft of ignited fumes from the combustion chamber into the kettle due to negative pressure within the kettle. The afterburner device may also include a temperature sensor that shuts down the fan in the event of kettle ignition.
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Product Brochure, "We're Hot!", Reeves Roofing EquipmentCo, Inc. Helotes, Texas.
Product Brochure, "Get Cost Effective Long Lasting Built-Up Roofing Without Fumes & Orders", National Tool & Equipment Co., Boardman, Ohio.
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Excerpt from "Methods for Control of Occupational Exposure to Asphalt Fumes During Hot Asphalt Roofing Work": The National Institute for occupational Safety and Health; The United Union of Roofers, Waterproofers and Allied Workers; The Asphalt Roofing Manufacturers Association; the National Roofing Contractors Association; and the Asphalt Institute (Draft dated Dec. 18, 1996), pp. 32-36.
Cleasby Manufacturing Company, Inc.
Yeung James C.
LandOfFree
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