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US 4,395,958 AGranted
Incineration system
AssigneeIndustronics, Inc.
InventorsAllan E. Caffyn, James L. Lobik
Life of this patent
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AssigneeIndustronics, Inc.
InventorsAllan E. Caffyn, James L. Lobik
Estimating the term…
An incineration system for processing solid, semi-solid waste material and sludge includes an incinerator unit which has a horizontally disposed rotary primary oxidation chamber and a generally vertically disposed secondary oxidation chamber which receives gaseous products of combustion from the primary chamber. Baffles within the secondary chamber provide a tortuous gas flow path through the secondary chamber. Gaseous emissions from the incinerator unit pass through a heat recovery boiler, a baghouse and a scrubber tower before being discharged to atmosphere. A control system controls rotation of the primary oxidation chamber and an auger/shredder which feeds waste material to be burned into the primary oxidation chamber. The control system may include a programmable computer for modifying the control functions in response to programmed data relating to the characteristics of material processed in the incineration system.
An incineration system comprising an incinerator unit including a rotary drum having a discharge opening at one end and defining a generally horizontally extending primary oxidation chamber, means defining a generally vertically extending secondary oxidation chamber and having an outlet opening in its upper portion and an inlet opening in its lower portion, said discharge opening communicating with said inlet opening, and baffle means disposed within said secondary oxidation chamber and including a first baffle wall inclined upwardly from a position below the center of said discharge opening and in the direction of said discharge opening for blocking flow of gases and other products of combustion from a lower portion of said primary oxidation into said secondary oxidation chamber, and a second baffle wall inclined downwardly from a position above said discharge opening and in a direction away from said discharge opening, said baffle walls cooperating with each other and with the walls of said secondary oxidation chamber to define a tortuous flow path for gases of combustion flowing from said primary oxidation chamber through said discharge opening and said inlet opening into and through said secondary oxidation chamber to said outlet opening.
An incinerator comprising a rotary drum defining a primary oxidation chamber and having a discharge opening at one end, means defining a secondary oxidation chamber having an inlet opening and an outlet opening, said discharge opening communicating with said inlet opening, baffle means disposed within said secondary oxidation chamber for defining a tortuous flow path for gases of combustion flowing from said primary oxidation chamber into and through said secondary oxidation chamber to said outlet opening, ash receiving means for receiving ash from at least one of the oxidation chambers, means defining an ash cooling passageway in heat exchange relationship to said ash receiving means, means for circulating air within said ash cooling passageway to cool said ash and heat said air, and means for introducing said air into said incinerator after said air has been heated by said ash receiving means.
In an incinerator having an oxidation chamber including an outlet opening, and baffle means disposed within said oxidation chamber for defining a tortuous flow path for gases of combustion flowing from said oxidation chamber through said outlet opening and including at least one baffle wall, the improvement wherein said one baffle wall comprises an assembly of unitary axially elongated refractory elements loosely associated in adjacent axially parallel side-by-side relationship, each of said elements being supported only at its opposite ends and maintained in assembly with the other of said elements by the force of gravity.
An incinerator comprising a rotary drum defining a primary oxidation chamber having a discharge opening at one end, means defining a secondary oxidation chamber having an inlet opening and an outlet opening, said discharge opening communicating with said inlet opening, baffle means disposed within said secondary oxidation chamber for defining a tortuous flow path for gases of combustion flowing from said primary oxidation chamber into and through said secondary oxidation chamber to said outlet opening, drum drive means for rotating said drum, feeding means for supplying combustible material to said primary oxidation chamber, and control means responsive to the rate of temperature change in at least one of the chambers including said primary oxidation chamber and said secondary oxidation chamber to control the operation of either and both said drum drive means and said feeding means.
An incinerator comprising a rotary drum defining a primary oxidation chamber having a discharge opening at one end, means for supplying air to said primary oxidation chamber, means for regulating the quantity of air delivered by said supply means to said primary oxidation chamber, means defining a secondary oxidation chamber having an inlet opening and an outlet opening, said discharge opening communicating with said inlet opening, baffle means disposed within said secondary oxidation chamber for defining a tortuous flow path for gases of combustion flowing from said primary oxidation chamber into and through said secondary oxidation chamber to said outlet opening, drum drive means for rotating said drum, pressure sensing means disposed within said primary oxidation chamber for detecting the pressure within said primary oxidation chamber and control means responsive to said pressure sensing means to control operation of either and both said drum drive means and said regulating means to maintain a predetermined pressure condition within said primary oxidation chamber.
An incineration system for burning refuse, trash and industrial wastes and comprising an incinerator unit including a rotary drum having a discharge opening at one end and defining a generally horizontally extending primary oxidation chamber, means defining a generally vertically extending secondary oxidation chamber and having an outlet opening in its upper portion and an inlet opening in its lower portion, said discharge opening communicating with said inlet opening, and baffle means disposed within said secondary oxidation chamber for blocking flow of gases and other products of combustion from a lower portion of said primary oxidation into said secondary oxidation chamber and cooperating with each other and with the walls of said secondary oxidation chamber to define a tortuous flow path for gases of combustion flowing from said primary oxidation chamber through said discharge opening and said inlet opening into and through said secondary oxidation chamber to said outlet opening, means for continuously sizing, compacting and feeding refuse, trash and industrial wastes into said primary oxidation chamber including an auger shredder having a compaction tube disposed in sealed relation to the inlet end of said primary oxidation chamber, a rotary shredding and compacting auger suported to rotate within said auger shredder, a shear plate, a gravity fed hopper for continuously supplying refuse, trash and industrial wastes to said compaction tube, and a drive motor for rotating said auger, and control means responsive to at least one condition within at least one of the chambers including said first and second oxidation chambers for controlling said drive motor to regulate the rate of operation of said sizing, compacting and feeding means.
Dependencies are inferred from the claim text.