The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 1976
Filed:
Sep. 14, 1973
Charles B Gentry, Grand Rapids, MI (US);
William A Phillips, Comstock Park, MI (US);
Granco Equipment, Inc., Grand Rapids, MI (US);
Abstract
An incinerator for combustible fumes in a mixture of such fumes and air wherein the fumes are raised to incineration temperature by combustion of a normally liquid fuel such as oil. The fumes and air mixture is first heated, preferably by heat exchange with the combustion chamber, to the vaporization temperature of the liquid fuel which is injected in atomized form into the heated fume and air mixture. The fume and air mixture along with the vaporized liquid fuel is then drawn through a fan which substantially homogeneously disperses the vaporized liquid fuel in the fume and air mixture and passes the homogeneous mixture to a combustion zone having a flame grid through which the liquid fuel-containing mixture passes. The liquid fuel in the mixture is ignited at the flame grid to form a flame curtain which raises the temperature of the fume and air mixture to incineration or oxidation temperature of the fumes. The fumes are thus oxidized and can thereafter be exhausted to the atmosphere. The liquid fuel is supplied with only sufficient air to atomize the same without the supply of additional air for combustion of the liquid fuel. Except for the air used in atomizing the liquid fuel, the oxygen for combustion of the liquid fuel is supplied solely by the air in the fume and air mixture, thereby avoiding the necessity of heating additional air required for burning the liquid fuel. Controls are disclosed for maintaining the temperature of the gases in the combustion chamber within a predetermined range by adjusting the amount of atomized liquid fuel added to the fume and air mixture. An auxiliary heating unit provides additional heat to the fume and air mixture when insufficient heat is provided by the heat exchange with the combustion chamber, such as during start-up of the incinerator unit. Controls are disclosed for maintaining the temperature of the fume and air mixture at a minimum temperature upstream of the combustion zone by controlling the operation of the auxiliary burner.