Volatiles capture educator system
AssigneeGpre IP, LLC
InventorsJohn M. Peterman, Mark A. Roberts, Mark J. Burke
Life of this patent
Estimating the term…
Abstract
A volatiles consuming eductor system for coated scrap metal furnaces with separate delacquering and melt chambers. Motive gas is forced through an inlet into a mixing chamber in a direction opposite a suction port, creating a Venturi that draws gases from the delaquering chamber through the mixing chamber. The motive gas and the drawn gases mix and are forced through a discharge port, ignited, and injected into the melt chamber to help heat the melt chamber. A computer monitors process conditions and controls a regulator that adjusts the motive gas flow in response to those conditions.
Claims20
A volatiles consuming eductor system for a coated scrap metal furnace, said furnace having a delacquering chamber and a melt chamber separated from said delacquering chamber, said system comprising:
- a. a gas mixing chamber positioned between said delacquering chamber and said melt chamber;
- b. a gas suction port, said gas suction port having a first end and a second end, said first end opening into said delaquering chamber, said second end opening into said gas mixing chamber, said gas suction port providing a gaseous conduit between said delaquering chamber and said gas mixing chamber;
- c. a motive gas inlet, said motive gas inlet opening into said gas mixing chamber, said motive gas inlet injecting a motive gas into said mixing chamber and directing said motive gas in a direction away from said gas suction port, said directed motive gas creating a Venturi in said mixing chamber, said Venturi drawing exhaust gases and volatiles from said delacquering chamber and into said mixing chamber, said exhaust gases and volatiles from said delacquering chamber mixing with said motive gas in said mixing chamber to form an eductor gas mixture;
- d. a gas discharge port, said gas discharge port having a first end and a second end, said first end opening into said gas mixing chamber, said second end opening into said melt chamber, said gas discharge port providing a gaseous conduit between said gas mixing chamber and said delaquering chamber, said gas discharge port directing said eductor gas mixture out of said gas mixing chamber and into said melt chamber;
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- e. an igniter, said igniter positioned proximate said gas discharge port in communication with said eductor gas mixture, said gas igniting said eductor gas mixture.
A volatiles consuming eductor system for a coated scrap metal furnace, said furnace having a delacquering chamber and a melt chamber separated from said delacquering chamber, said furnace having a computer control system, said volatiles consuming eductor system comprising:
- a. a gas mixing chamber positioned between said delacquering chamber and said melt chamber;
- b. a gas suction port, said gas suction port having a first end and a second end, said first end opening into said delaquering chamber, said second end opening into said gas mixing chamber, said gas suction port providing a gaseous conduit between said delaquering chamber and said gas mixing chamber;
- c. a motive gas inlet, said motive gas inlet opening into said gas mixing chamber, said motive gas inlet injecting motive gas into said mixing chamber and directing said motive gas in a direction away from said gas suction port, said directed motive gas creating a Venturi in said mixing chamber, said Venturi drawing exhaust gases and volatiles from said delacquering chamber and into said mixing chamber, said gases and volatiles from said delacquering chamber mixing with said motive gas in said mixing chamber to form an eductor gas mixture;
- d. a gas discharge port, said gas discharge port having a first end and a second end, said first end opening into said gas mixing chamber, said second end opening into said melt chamber, said gas discharge port providing a gaseous conduit between said gas mixing chamber and said delaquering chamber, said gas discharge port directing said eductor gas mixture out of said gas mixing chamber and into said melt chamber;
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- e. an igniter, said igniter positioned proximate said gas discharge port in communication with said eductor gas mixture, said gas igniting said eductor gas mixture;
- f. a controllable gas flow subsystem, said subsystem providing controllable gas flow regulation of one or more gases in said volatiles consuming eductor system.
An automated volatiles consumption system for a coated scrap metal furnace, said furnace having a delacquering chamber and a melt chamber separated from said delacquering chamber, said furnace having a computer control system, said automated volatiles consumption system comprising:
- a. an eductor system having a gas suction port, a gas mixing chamber, a motive gas inlet, and a gas discharge port;
- said gas mixing chamber being positioned between said delacquering chamber and said melt chamber;
- said gas suction port opening into said delaquering chamber and said gas mixing chamber;
- said gas suction port providing a gaseous conduit between said delaquering chamber and said gas mixing chamber;
- said motive gas inlet opening into said gas mixing chamber and injecting a motive gas into said mixing chamber in an orientation directed away from said gas suction port;
- said directed motive gas creating a Venturi in said mixing chamber;
- said Venturi drawing exhaust gases and volatiles from said delacquering chamber and into said mixing chamber;
- said gases and volatiles from said delacquering chamber mixing with said motive gas in said mixing chamber to form an eductor gas mixture;
- said gas discharge port opening into said gas mixing chamber and said melt chamber;
- said gas discharge port providing a gaseous conduit between said gas mixing chamber and said melt chamber;
- said gas discharge port providing a gaseous conduit between said gas mixing chamber and said melt chamber;
- said gas discharge port directing said eductor gas mixture out of said gas mixing chamber and into said melt chamber;
- b. an igniter, said igniter positioned proximate said gas discharge port in communication with said eductor gas mixture, said gas igniting said eductor gas mixture;
- c. an electronic gas flow control loop, said control loop comprising a computer processor, an electronic sensor positioned in said eductor system, and a gas flow regulator positioned in said eductor system;
- said gas flow regulator controlling the flow of one or more gases in said eductor system;
- said sensor measuring a first process condition in said eductor system, generating an electronic signal indicative of said first process condition, and communicating said electronic signal to said computer processor;
- said computer processor controlling said gas flow regulator in response to said electronic signal.
Dependencies are inferred from the claim text.