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| Number | Title | Issue Date |
| 7284550 | Burn pot for furnace A method of combusting a fuel in a burn pot includes forming an ash column within the burn pot, and removing a portion of the ash column. The burn pot includes a first sidewall portion, a second sidewall portion, and a translatable plate interposed between the first... | 10/23/2007 |
| 7228806 | Biomass gasification system A biomass gasification system for efficiently extracting heat energy from biomass material. The biomass gasification system includes a primary combustion chamber, a rotating grate within the primary combustion chamber for supporting the biomass during gasification, ... | 06/12/2007 |
| 7032526 | Method for combustion treatment of combustible waste and apparatus therefor The present invention can provide a method for combustion treatment capable of efficiently treating combustible waste, and a combustion treatment apparatus capable of realizing such a method. The present invention can further provide a method for combustion treatmen... | 04/25/2006 |
| 6994035 | Feed chute apparatus for gravity feeding tires and other materials into a rotating kiln A feed chute apparatus for injecting fuel into a rotating cement kiln by gravity. The apparatus, which is positioned adjacent to a cement kiln and supported at an angle of inclination sufficient to allow tires or other combustible materials to be gravity fed into th... | 02/07/2006 |
| 6994037 | Rabble arm for a furnace A rabble arm for a furnace includes an elongated metallic support core, at least one rabble tooth having a rabble portion and a fixing portion and a fixing device co-operating with the fixing portion for fixing the rabble tooth to the elongated metallic support core... | 02/07/2006 |
| 5868566 | Sealed and zone rotary grate convection solids processing apparatus A rotary hearth furnace includes a base having a plurality of first plenums, an upper chamber having a plurality of second plenums and a hearth rotatable between the base and the upper chamber and having a plurality of third plenums. The hearth is moveabl... | 02/09/1999 |
| 5722333 | Incinerator furnace with fire grate and air supply This invention provides a variety of incineration furnace with modular fire grate apparatus for cylindrical incinerator furnaces of water jacket configuration. The invented fire grate module is provided with refuse dump agitation capability from underside... | 03/03/1998 |
| 5685241 | Lined lateral rotary kiln incinerator A furnace body (4) consists of drums (D1, D2, and D3) which are supported and drove by rotation drive assemblies (3) independently of each other. Each drum has open ends at both sides, and adjacent open ends are engaged to each other in a rotatable manner... | 11/11/1997 |
| 5647833 | Method for vitrifying hazardous waste Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which a stirrer (38) mixes hazardous waste and any other necessary components for forming a glassy mixture upon heating while an electrical current is applied acr... | 07/15/1997 |
| 5595483 | Method and apparatus for thermal treatment of materials containing vaporizable substances Materials containing vaporizable substances are exposed successively in at least two treatment chambers (10, 13, 14), which can be closed off with respect to each other, to a series of decreasing pressures and increasing temperatures. The vaporizable subs... | 01/21/1997 |
| 5582117 | Firepot with ash-dumping floor Embodiments of a combustion firepot are shown and described, each having a means for dumping ashes and other burn debris from the firepot. The preferred embodiment is a pellet stove firepot with an interior ramped wall. Pellets are delivered to the firepo... | 12/10/1996 |
| 5515793 | Incineration furnace An incineration furnace for disposal of waste in which substantially complete burning of waste materials is obtained. A stirring member is rotatably supported in the interior of an incinerator housing, making up the main incineration furnace body. Air for... | 05/14/1996 |
| 5473998 | Cement kiln having tire injection system A cement kiln having a tire injection system. The tire injection system comprises an entrance chute having an outer end portion protruding outwardly of a wall of the kiln and an inner end portion which protrudes into the kiln. The entrance chute further i... | 12/12/1995 |
| 5173047 | Shrouded rabbles for use in rotary hearth furnaces A shrouded rabble includes a blade having an active face and a backface with a shroud extending from the backface along a lower edge of the blade. The rabble is suspended above a perforated hearth for urging charge materials on the hearth from one locatio... | 12/22/1992 |
| 5138957 | Hot gas generation system for producing combustible gases for a burner from particulate solid organic biomass material A bottom-feed, biomass material gasification system feeds fuel such as green and wet woodchips from below up through a central opening in a stationary, perforate fire table which supports the mound-like fuel bed which is formed. A plurality of ring-like a... | 08/18/1992 |
| 5108718 | Method for the destruction of toxic waste products and a plasma chemical reactor Toxic wastes are destroyed by contact thereof with a steam plasma jet and immediately thereafter with an oxidizing medium followed by washing of the resultant gaseous product with an alkaline medium. An apparatus for carrying out this method is in the for... | 04/28/1992 |
| 5080025 | Cocurrent oxidation method in a multiple hearth furnace A method of oxidizing feed materials using a multiple hearth furnace comprises the steps of introducing the feed materials to be oxidized on at least the uppermost hearth, introducing fuel/air mixtures in the uppermost hearth to dry and ignite the feed ma... | 01/14/1992 |
| 5005494 | Apparatus and method for high temperature disposal of hazardous waste materials An improved method and plasma torch incinerator or reactor in which the incinerator uses a rotating, materials-receiving drum or chamber for receiving the hot plasma of a plasma torch. By properly constructing the inner surface of the rotatable drum and b... | 04/09/1991 |
| 4976208 | Water cooled incinerator An incinerator having a horizontal burn disk which is rotatably supported within the lower portion of a firebox with a portion of the firebox containing water tubes connected to a water circulation system including a header and a steam drum. Compacted mat... | 12/11/1990 |
| 4934283 | Solid waste disposal unit A solid waste disposal unit having a lower, pyrolyzing chamber and an upper, oxidizing chamber separated by a movable plate. Waste is deposited in the lower chamber. The chambers are rotated to move the plate to a first position which seals the lower cham... | 06/19/1990 |
| 4846082 | Tire carcass pyrolysis system The system comprises a pyrolysis chamber having a tire carcass inlet port and communicating with at least a duct for supplying combustion air, the pyrolysis chamber further communicating with s steam generator and having a stationary bottom of frustum of ... | 07/11/1989 |
| 4808286 | Apparatus and method for maximizing production of heat, gas, and electricity through the acceleration of hydrogen dissociation An apparatus for inducing and accelerating hydrogen dissociation in a cloud generated from feedstock fed into a chamber defined by the apparatus is provided. The apparatus includes a device for thermally stimulating the feedstock to generate the cloud, a ... | 02/28/1989 |
| 4770109 | Apparatus and method for high temperature disposal of hazardous waste materials An improved plasma torch incinerator or reactor in which the incinerator uses a rotating, materials-receiving drum or chamber for receiving the hot plasma of a plasma torch. By properly constructing the inner surface of the rotatable drum and by varying t... | 09/13/1988 |
| 4718357 | Multi-function automatic garbage furnace This invention concerns about a kind of multi-function automatic garbage furnace which consists of three main divisions; a garbage transporting and storing division, a burning division and a cleaning division of waste gas. The garbage transporting and sto... | 01/12/1988 |
| 4679268 | Method and apparatus for burning solid waste products using a plurality of multiple hearth furnaces Method and apparatus for incinerating low density organic materials using a pair of side by side multiple hearth furnaces are disclosed. The first furnace of the pair operates in a temperature-controlled reducing atmosphere to achieve complete volatilizat... | 07/14/1987 |
| 4655146 | Reaction apparatus and method An apparatus and method for continuously treating material for performing such functions as burning, roasting, smelting, coking, melting, high temperature chemical reactions and the like in a combustion chamber wherein the chamber or an extension thereof,... | 04/07/1987 |
| 4643110 | Direct fuel-fired furnace arrangement for the recovery of gallium and germanium from coal fly ash A furnace arrangement utilizes a single vertically disposed shaft furnace incorporating the features of pellet drying and hardening, oxidizing heat-up, reducing roast and gas separation. The upper portion of the furnace dries and hardens "green" pellets w... | 02/17/1987 |
| 4633849 | Central feed rotary automatic ash discharge stoker The rotary stoker has a fuel supporting grate which is divided into a central stationary section and an outer rotating ring. Fuel is fed to the center of the stationary section. The outer ring is downwardly and centrally inclined, as an inverted cone, and... | 01/06/1987 |
| 4612865 | Apparatus for the combustion of solid fuels A cyclone furnace for the combustion of solid fuels, comprising a generally cylindrical combustion chamber (21) is closed at one end (18, 23) and is provided with at least one inlet opening for fuel and air and has an outlet at the end opposite the closed... | 09/23/1986 |
| 4548194 | Fuel stoker and furnace A furnace having a primary heat exchange unit also providing a combustion chamber, a secondary heat exchange unit connected by an upper crossover conduit to the primary heat exchange unit, and a tertiary heat exchange unit connected by a lower V-shaped cr... | 10/22/1985 |
| 4545306 | High temperature furnace An improved high temperature furnace is disclosed for consuming various fuels and organic waste materials while generating usable energy. The furnace has a high pressure aeration system in its combustion chamber to increase combustion efficiency. One set ... | 10/08/1985 |
| 4452153 | Rotary hearth pyrolyzer with tapered spreader roll A rotary hearth pyrolyzer is described as having a conically tapered roll for uniformly spreading waste material that is charged onto the hearth for pyrolyzation. The taper of the spreader roll is such that the linear speed at any point measured longitudi... | 06/05/1984 |
| 4449462 | Coal burning apparatus A coal burning apparatus actuated by a stoker of the underfeed type includes a burner body formed of a plurality of vertically stacked rings with spaces between the rings extending horizontally to form a tuyere. A tuyere is easily made by stacking rings o... | 05/22/1984 |
| 4437452 | Rotary continuous ash discharge stoker A rotary continuous ash discharge stoker having a circular grate which is designed to support burning fuel as it distributes the fuel from the feedpoint over the entire grate, and at the same time provides for the controlled admission of air for combustio... | 03/20/1984 |
| 4388876 | Ash removal system An ash removal apparatus for a burner which produces ash moved through a discharge passage in the floor of the burner, including a circumferential ash-removing opening surrounding the grate of the burner, with the surfaces forming the opening being circum... | 06/21/1983 |
| 4384534 | Ash removal system and heating mechanism for wood waste burners Wood waste fuel is piled on a perforated grate within a combustion chamber. The fuel is burned by underfire air passing through the grate up through the pile. Ash forms at the bottom of the pile and is removed about a complete 360 degree perimeter where i... | 05/24/1983 |
| 4366759 | Mass burning self-cleaning incinerator A method and apparatus for the consumption of relatively mass amounts of refuse in which a plurality of refuse burning grates are spaced one above the other. The refuse is supplied to and deposited selectively on selected ones of all of the grates while t... | 01/04/1983 |
| 4280417 | Incineration plant A combustion process and a plant therefor, said process comprising the steps of introducing combustion material into a first chamber included in the plant and burning said combustion material therein, and finally burning out and treating in a second chamb... | 07/28/1981 |
| 4261269 | Furnace for incinerating waste In a furnace in which the waste is loaded into a central shaft at the bot of which it is held up by a device for letting through small particles after the column of waste has been exposed to degassing and drying heat entering laterally from a smoke chamb... | 04/14/1981 |
| 4248164 | Sludge drying system with sand recycle A process and system to dry wet sewage sludge with hot sand and to burn the dried sludge. The sand is heated in a heating device by burning dried sludge, and the hot sand is mixed with wet sludge in a drying device. Thereby moisture is driven from the wet... | 02/03/1981 |
