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| Number | Title | Issue Date |
| 7461604 | Starved air inclined hearth combustor An inclined hearth combustor which generally includes a primary combustion chamber having a plurality of stepped hearths, a secondary combustion chamber in communication with the primary combustion chamber and a boiler having an inlet in communication with the secon... | 12/09/2008 |
| 7426892 | Water-cooled grate The present invention relates to a water-cooled grate, which can be cooled while avoiding high and low temperature corrosions. The water-cooled grate comprises: at least one cooling pipe for guiding flow of cooling water; a grate body for placing waste matters to be... | 09/23/2008 |
| 7219610 | Grate plate arrangement for step plates A grate plate arrangement for step grates includes box-like grate plates (4) positioned on a grate carrier (2) with a front plate (24) placed on its end wall (18) and fastened to the end wall (18) using one or more studs (26... | 05/22/2007 |
| 7146916 | Starved air inclined hearth combustor An inclined hearth combustor which generally includes a primary combustion chamber having a plurality of stepped hearths, a secondary combustion chamber in communication with the primary combustion chamber and a boiler having an inlet in communication with the secon... | 12/12/2006 |
| 6964237 | Grate block for a refuse incineration grate A grate block for an incinerator has a top wall and a front wall that extends from the front wall. A pair of side walls wherein each sidewall extends from the top wall and the front wall. Each of the side walls of the grate blocks engage the side wall of the adjacen... | 11/15/2005 |
| 6513445 | Plant and grate block for the thermal treatment of waste materials A plant for the thermal treatment of waste materials. The plant has a grate, on the surface of which the waste materials lie. The grate has gas passages which are connected to a gas supply for the grate surface. The gas supply has at least one oxygen feed... | 02/04/2003 |
| 6405661 | Combustion enhancing air foil A combustion enhancing member employed with a stoker combustion system is disposed on the grate of the stoker and includes at least one chamber. The chamber has at least one fluid inlet for receiving a combustion enhancing fluid and a plurality of fluid o... | 06/18/2002 |
| 6332410 | Grate for incineration plants The invention relates to a grate for incineration plants for the incineration of combustible material, in particular refuse, comprising at least one grate track, which is composed of fixed and movable grate-lining rows, which are arranged alternately in t... | 12/25/2001 |
| 6269756 | Liquid cooled grate plate A water-coolable grate plate including a top surface, oppositely disposed sides and at least one cooling channel which is thermally connected to the top surface. The cooling channel connects a first coolant port, which is substantially centered between th... | 08/07/2001 |
| 6213031 | Method of cooling a grate for a furnace and grate for a furnace To cool a grate having alternately fixed and movable rows (1, 1') of grate bars (2), cooling liquid is sprayed into cavities (7), open at the bottom, of the grate bars (2) from spray tubes (10) situated in the underblast region (8) and in the process vapo... | 04/10/2001 |
| 6145451 | Water-cooled firing grate A water-cooled firing grate made up of grate bar blocks extending over the width of the grate and each having a plurality of grate bars mounted on a grate bar carrier and interconnected by connecting pieces communicating between meandering shaped channels... | 11/14/2000 |
| 6132206 | Water cooled finger for pre-heater of furnace top A water cooled finger for a pre-heater of a furnace top holds metal materials of a required amount in a shaft installed at the furnace top for pre-heating metal materials by introducing exhaust gas at high temperature generated in the furnace into the sha... | 10/17/2000 |
| 6067916 | Process and device for producing and utilizing gas from waste materials In a process for gasifying and burning waste materials, the waste materials are introduced into an incinerator (1) and end up on a burning grate (6) to which combustion air is conducted through various undergrate forced draft chambers (8a to 8e). In the f... | 05/30/2000 |
| 6024031 | Water-cooled thrust combustion grate A thrust combustion grate for burning refuse having altemately stationary (5) and movable (6) hollow grate plates (5,6) in a stairway formation, that rest on each other with their front underedge. The grate plates extend across the entire width of the gra... | 02/15/2000 |
| 5992334 | Loose-material grate with volumetric control of gaseous coolant A loose-material grate includes a grate surface for receiving loose material and a chamber arrangement below the grate surface supplies the grate surface with a gas, for example cooling air. A lattice arrangement with adjustable openings is provided space... | 11/30/1999 |
| 5983811 | Method and roller grill for burning refuse A roller grate arrangement for garbage-incinerating plants, in which a plurality of rollers with horizontal and parallel axes lie in an inclined plane. Primary air is fed to interiors of the rollers by air boxes located below the grate. The rollers have s... | 11/16/1999 |
| 5967064 | Roller grate A roller grate arrangement for garbage-incinerating plants, in which a plurality of rollers with horizontal and parallel axes lie in an inclined plane. Primary air is fed to interiors of the rollers by air boxes located below the grate. The rollers have s... | 10/19/1999 |
| 5899150 | Grate element and grate with fluid cooling The grate element (1, 2) is made in three pieces in the sample embodiment, and consists of a central main part (10) and two side parts (11, 12) attached thereto. The main part (10) is pierced by parallel straight-line bores, which form the straight-line c... | 05/04/1999 |
| 5588829 | Thrust grating cooler and method for cooling hot material In order to create a thrust grating cooler whose system for delivering the cooling air to the individually aerated, reciprocally movable grating plate carriers manages without flexible cooling air hose conduits that are susceptible to wear, at least one c... | 12/31/1996 |
| 5572937 | Reciprocating grate cooler A reciprocating grate cooler has a plurality of grate plates mounted on a reciprocable support structure for conveying hot material longitudinally across a grate surface formed by the grate plates. The support structure has passages therein and an inlet f... | 11/12/1996 |
| 5377663 | Grate combustion system The sidewall end grate block includes a first side which can be placed adjacent to a press plate and a second side which is adjacent to another grate block. The first side includes press plate attachment provisions while the second side includes a tension... | 01/03/1995 |
| 5245983 | Grate bar and grate for combustion plants A grate bar support for use in combustion furnaces, particularly rubbish incinerators, has a hollow-box shaped member having a trapezoidal cross-section along a longitudinal direction and trapezoidal cross-section along a direction transverse to the longi... | 09/21/1993 |
| 5241916 | Procedure for supplying combustion air and a furnace therefor The procedure for supplying combustion air during grate firings, in which the primary combustion air is introduced into the fuel, and secondary combustion air is introduced directly into the flow of exhaust gas, and in which, in addition, some of the exha... | 09/07/1993 |
| 5209169 | Incinerator improvements Improvements for an incinerator system including double reburn tunnels, an excitor within a reburn tunnel, a choker for closing off part of a reburn tunnel, a grate near the incinerator's inlet to permit the drying and initial combustion of refuse, an ash... | 05/11/1993 |
| 5069146 | Grate for a fuel boiler A grate for a fuel boiler, consisting of plates arranged stepwise or in a cascading fashion, with at least two fixed plates and a movable plate disposed between the two fixed plates. The movable plate is capable of reciprocating to and fro and is provided... | 12/03/1991 |
| 4901653 | Hearth for a furnace, notably a furnace for urban waste, including a grate made up of alternately fixed and reciprocating bars, with increased flexiblity of adjustment The grate comprises, within its length, two consecutive beds (41, 42) with substantially the same general slope joined together at a point in substantial vertical alignment with the altar wall (7), each bed having its own mobile frame (45d, 46d) with its ... | 02/20/1990 |
| 4884516 | Inclined grate apparatus for use in the combustion chamber of a combustion furnace An inclined grate construction or apparatus in the combustion chamber of a combustion furnace, comprising a plurality of adjacent grate tubes in the longitudinal direction of the grate, said tubes being welded together through flat bars. Below the grate i... | 12/05/1989 |
| 4876972 | Grate bar element for a sliding grate furnace for garbage incineration In a grate bar element for a sliding grate furnace for garbage incineration, where the individual grate bar elements are formed for imbricate arrangement and have at their ends openings for the escape of combustion air, the layout is such that each grate ... | 10/31/1989 |
| 4841884 | Distributor plate for fluidized bed reactor In a fluidized bed reactor, nozzles are provided for distributing fluidizing gas from a windbox into the reactor while preventing the backflow of solid particles through the nozzle into the windbox. The nozzle defines an upper part of high heat and wear r... | 06/27/1989 |
| 4719900 | Grate for use in industrial furnaces The grate of an industrial furnace is assembled of elongated grate bars which form rows of neighboring grate bars and the grate bars of neighboring rows partially overlap each other. Each grate bar has a top wall, a front end wall and two sidewalls, and s... | 01/19/1988 |
| 4672947 | Grate bar for use in industrial furnaces A grate bar has an elongated top wall, two longitudinally extending sidewalls, transversely extending front and rear walls, a bottom wall, and several longitudinally extending ribs at the underside of the top wall. The walls define an air heating chamber ... | 06/16/1987 |
| 4630553 | Dual stage combustion furnace A dual stage combustion furnace has primary and secondary combustion chambers. The primary combustion chamber contains a solid fuel, such as wood or coal. The secondary combustion chamber is formed adjacent to and in communication with the primary combust... | 12/23/1986 |
| 4606282 | Self feeding wood burning stove In the stove, pluralities of elongated logs are stacked on top of one another, substantially on parallels to a generally horizontal axis, to form a pair of sloping, single-log-wide, axially extending stacks of the same which are spaced apart but converge ... | 08/19/1986 |
| 4598651 | Furnace with oscillating grate A solid fuel furnace having an oscillating grate plate solid fuel burner therein wherein the grate plates are in a stepped arrangement and every other plate moves together, in an opposite direction from the adjacent plates so that the solid fuel is kept m... | 07/08/1986 |
| 4586442 | Gasifier method and apparatus A gas generator for generating combustible gases from biomass material comprising an enclosure within which is mounted an inclined support intermediate the top and bottom such as to define a gas generating chamber above the support and a plenum chamber be... | 05/06/1986 |
| 4516534 | Steel construction solid-fuel firing boiler for civil heating applications A novel steel construction solid-fuel firing boiler for civil heating applications comprises a space portion defined by side, bottom, cover, front and rear walls forming therein an interspace for water to be heated, a firestone block burner in the space p... | 05/14/1985 |
| 4484530 | Dual stage combustion furnace A dual stage combustion furnace has primary and secondary combustion chambers. The primary combustion chamber contains a solid fuel, such as wood or coal. The secondary combustion chamber is formed adjacent to and in communication with the primary combust... | 11/27/1984 |
| 4479441 | Stepped hearth incinerator with positive clean-out of air feed-tubes An inclined hearth incinerator for the incineration of municipal, and industrial/commercial solid waste optionally in conjunction with sludge, with a controlled amount of combustion air allows the even distribution of underfire air to an upper hearth of p... | 10/30/1984 |
| 4463688 | Grate block for a refuse incineration grate An improved grate block includes a blow-out channel terminating at a blow-out opening through the face of the block, the opening having pre-determined dimensional relationships with respect to the size of the front face of the block. The ratio of the widt... | 08/07/1984 |
| 4262611 | Method of and apparatus for waste incineration A method of and installation for incineration of solid and, if desired, liquid waste. The installation comprises a pyrolysis chamber and connected directly therebelow a combustion chamber. Exhaust gas ducts which cover the outer walls of the pyrolysis cha... | 04/21/1981 |
