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| Number | Title | Issue Date |
| 7117803 | Apparatus for the pyrolysis of material Apparatus (2) for the pyrolysis of material, which apparatus (2) comprises a pyrolysis chamber (4), an inlet (6) at a first end (8) of the pyrolysis chamber (4), an outlet (10) at a second end (12) of the pyrol... | 10/10/2006 |
| 6948436 | Method and apparatus for the gasification and combustion of animal waste, human waste, and/or biomass using a moving grate over a stationary perforated plate in a configured chamber An apparatus for the combustion of organic waste such as poultry litter/manure, cow manure and swine manure, and/or human waste, and/or biomass using a moving grate over a stationary perforated plate to convert organic waste into usable energy. The unprocessed fuel ... | 09/27/2005 |
| 6814571 | Arrangement and method for reducing build-up on a roasting furnace grate The present invention relates to an arrangement and method that help to reduce the build-up formed on the grate of a fluidized-bed furnace in the roasting of fine-grained material such as concentrate. The concentrate is fed into the roaster furnace from the wall of ... | 11/09/2004 |
| 6532879 | Gasifier system and method A solid fuel fed combustor system having a first chamber portion with an inlet feed for feeding a metered amount of a solid fuel thereto, a first burner stage having a first traveling conveyor firebelt, a metered amount of air introduced in progressively ... | 03/18/2003 |
| 5947719 | Grate plate construction A grate plate construction for installation as part of a grate assembly in which free flowing material is supported for movement along a path while treatment gas flows upwardly through such material. The construction has a relatively thin carrier plate ha... | 09/07/1999 |
| 5895213 | Clinker cooler A clinker cooler (3) comprises a plurality of grates (5) arranged in adjacent and overlapping relation to each other for conveying hot cement clinker (11) supplied from a kiln (1). The grate (5) is formed with an air hole (20) through which air from a fan... | 04/20/1999 |
| 5839376 | Stoker with universal key construction An individual key, a stoker incorporating a plurality of the keys, or a furnace incorporating the stoker which includes a key apparatus having a mounting surface dimensioned and configured for sliding engagement with an associated arm, the mounting surfac... | 11/24/1998 |
| 5673636 | Garbage incineration process on an incineration grate, incineration grate for carrying out the process and plate for such an incineration grate A process wherein an incineration grate is tempered by a medium that flows therethrough. The grate has a number of hollow plates made of sheet metal. Each plate lies on the next underlying plate. A connection pipe is arranged on one side of each plate and... | 10/07/1997 |
| 5647288 | Scrap conveyor having improved scrap pre-heating construction In a scrap conveyor for feeding a scrap to a processing furnace such as an arc furnace, etc, while pre-heating the scrap by an exhaust gas from the processing furnace, the periphery of the scrap conveyor is covered with a gas seal cover, a flue is dispose... | 07/15/1997 |
| 5636581 | Grate bar and grate with cooling apparatus and process for cooling Fluid-cooled grate bars and grates for use in a combustion furnace such as a garbage incineration plant and a process for cooling the grate bars and grates. The grate bar has a duct defined therewithin for guiding a coolant supplied by a fluid-cooling app... | 06/10/1997 |
| 5530176 | Method and apparatus for disposing of hazardous waste material in a cement-producing kiln A method and apparatus for disposing of hazardous waste material by burning in a cement-producing kiln includes providing a predetermined quantity of hazardous waste material in a predetermined configuration, and providing an apparatus for aerating and us... | 06/25/1996 |
| 4697530 | Underfed stoker boiler for burning bituminous coal and other solid fuel particles An automatic stoker boiler has a heat transfer compartment above a combustion chamber which is divided by a horizontal partition inclined upwardly from the rear end of the boiler towards but terminating short of the front end thereof to provide a restrict... | 10/06/1987 |
| 4648329 | Device for reinjecting flown-off particles into a solid fuel boiler An apparatus for reinjecting flown-off particles into a solid fuel fire box of a boiler or furnace of the "projector with back grid" type, in which particulate fuel is projected from a fuel source adjacent a first zone to a grid, with the fuel burned alon... | 03/10/1987 |
| 4624192 | Fluidized bed combuster process A bed of high-sulfur coal is burned in transit through a furnace on a horizontal or inclined travelling grate. Low pressure air is fed upwardly through the bed in quantities sufficient to react with most of the carbon content of the coal, from which sulfu... | 11/25/1986 |
| 4532872 | Char reinjection system for bark fired furnace A furnace (10) in which bark or other cellulosic fuel (64) is burned on a traveling grate (24). Char (62) separated (48, 54) from the furnace exhaust gases is reinjected into the furnace beneath baffle plate (40) in such a manner that the raw bark (64) be... | 08/06/1985 |
| 4475468 | Incinerator with moving-bed stoker An incinerator with a moving-bed stoker in which a chain conveyor is inclined in the direction of its movement and a plurality of fuel- or fire-bed members L-shaped in cross section are mounted on the links of the chain conveyor, whereby a step-like movin... | 10/09/1984 |
| 4446800 | Apparatus for firing solid fuels This invention relates to a boiler installation for the combustion of solid fuels, for example forest waste material in the form of e.g. bark and/or chips, peat pellets, coal etc., which installation comprises a furnace located in connection to a heat med... | 05/08/1984 |
| 4319557 | Heat exchanger furnace A heat exchanger furnace includes a firebox, a heat exchanger housing in communication with the firebox for receiving combustion gases therefrom, and a plenum housing surrounding the heat exchanger housing so as to define a plenum chamber therebetween. A ... | 03/16/1982 |
| 4308034 | Apparatus for incinerating and gasifying biomass material Apparatus for incinerating and gasifying biomass material by employing a flight conveyor having an upper run traversing a horizontal, perforated upper grate and a lower run traversing a perforated lower grate which is parallel to and beneath the upper gra... | 12/29/1981 |
| 4270469 | Coal-feeding mechanism for a fluidized bed combustion chamber The present invention is directed to a fuel-feeding mechanism for a fluidized bed combustor. In accordance with the present invention a perforated conveyor belt is utilized in place of the fixed grid normally disposed at the lower end of the fluidized bed... | 06/02/1981 |
| 4268274 | Gasification retort Apparatus for progressively burning biomass material comprising a retort defining a chamber, a linearly moving grate bed enclosed within the chamber with a space below and a space above for respectively supplying primary air to the lower side of the grate... | 05/19/1981 |
| 4263857 | Traveling grate stoker for the combustion of difficultly ignited fuels A cross fire stoker adapted to burn a difficultly ignited fuel is disclosed, together with a method of operating the stoker. The stoker is adapted to burn such fuel in a furnace not having large front or rear arches and includes a horizontal traveling gra... | 04/28/1981 |
| 4109590 | Apparatus and method for producing gas Continuously flowing solid material, such as municipal waste, is pretreated in an air-starved hot moving grate carbonizer furnace to drive off low temperature volatiles, and then further devolatized in a shaft furnace wherein limited amounts of air are le... | 08/29/1978 |
