Method and apparatus for efficiently controlling the incineration of combustible materials in a multiple hearth furnace system in which the combustion air is essentially all introduced at the bottom of the furnace
CA 1212276 A · Owner: Zimpro · Inventors: Lewis, Frederick M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method and apparatus for controlling the operation of a multiple hearth furnace system for efficiently incinerating combustible materials such as sludge, in which the air of combustion is essentially all introduced at the bottom of the furnace to incinerate solid materials. This control involves the following essential steps: scanning the temperature of two or more combustion hearths to determine which is the hottest hearth; controlling the temperature of the thus-determined hottest hearth at a predetermined temperature set point value; controlling the oxygen content of the system exhaust gas at least as high as the predetermined set point value; and …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 7, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 2003.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.