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Class 110/300 - For forced air supply


Subclass of Class 110 - Furnaces
Definition: Apparatus wherein the flow control means is an impeller
No. of patents: 53
Last issue date: 05/22/2007


1    
NumberTitleIssue Date
7219610Grate 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
7146916Starved 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
7093457Annular cooler pallet construction
A pallet construction for an annular cooler forms a gas permeable surface for supporting and transporting material during processing thereof. The pallet construction includes a pallet deck having a series of substantially parallel rows of spaced apart elongated slot...
08/22/2006
6513445Plant 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
6405661Combustion 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
6336449Solid fuel burner for a heating apparatus
A burner system is described for burning granular pellets and similarly sized solid biomass heating fuel, e.g. wood pellets. It includes an air tight fire chamber having an exhaust outlet in an upper region thereof and a burner (10) in the bottom thereof ...
01/08/2002
6269756Liquid 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
6220190Water-cooled oscillating grate system
An integral water-cooled, air permeated, vibrating grate system for combusting biomass and other fuels in a boiler includes a grate top surface having air-flow apertures extending therethrough. The grate top surface is supported by a plurality of water-co...
04/24/2001
6192810Laminar flow air register
A register for use in conjunction with kraft recovery boilers or bark-fired boilers utilizes a pair of shaped damper foils to reduce turbulence and induce laminar flow of air from an associated windbox through a port in the boiler. The foils are mounted f...
02/27/2001
6155184Process for incinerating solids on a water-cooled thrust combustion grate, and a grate plate and grate for accomplishing the process
A process wherein primary air supplied to the combustion bed through the thrust combustion grate is deflected after exiting from a surface of the thrust combustion grate by deflector elements mounted on the surface of the thrust combustion grate. The grat...
12/05/2000
5992334Loose-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
5983811Method 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
5967064Roller 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
5762008Burning fuels, particularly for incinerating garbage
A method for burning fuels, particularly garbage, in incinerators with a stoker grate, for which the primary air is supplied below the stoker grate into the fuel layer and the secondary air is supplied above the fuel layer, is controlled in such a way tha...
06/09/1998
5720165System for burning biomass to produce hot gas
A system for burning biomass to produce hot gas including a wood processing system, a combustor, a cyclone ash separator, a turbine, and a control system. The wood processing system serves to process, dry and prepare the biomass for injection into the com...
02/24/1998
5701881Fire grate having fluctuational profile in circumferential direction thereof
At least one ring-shaped fin is disposed on the upper surface of a variety of circular planform stationary fire grate having a multiplicity of ash discharge openings thereon and for use in combustion chamber of either water jacket or fire brick type cylin...
12/30/1997
5673636Garbage 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
5572937Reciprocating 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
5564632Secondary air nozzle and starting burner furnace apparatus
An air nozzle assembly for use in an associated combustion apparatus which includes a secondary air nozzle apparatus. The air nozzle apparatus may be a part of the windbox of an associated furnace. The apparatus includes a housing which has at least a par...
10/15/1996
5282741Grate plate
The present invention pertains to a grate plate utilized in a cooling apparatus. Substantially the entire surface area of the exposed surface is defined by alternating rows of a plurality of (1) substantially rectangular hollow air distribution plenums th...
02/01/1994
5245983Grate 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
5241916Procedure 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
5235921Combustion system having a movable hearth
The present invention is a combustion chamber for an incinerator that has a chamber with a plurality of refractory walls and an opening for the delivery of materials into the chamber. A hearth is contained within the chamber. The hearth has a surface for ...
08/17/1993
5209169Incinerator 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
5107777Combustion of low BTU/high moisture content fuels
A process for combusting low B.T.U. high moisture content fuels by enriching the normal process air used in the combustion process....
04/28/1992
5044288Method and apparatus for the efficient combustion of a mass fuel
A grate assembly consisting of a means for receiving a mass fuel and combusting the mass fuel on a surface with the addition of a combustion gas, and discharging the remaining residue. A separate means for injection of a mix gas at multiple points along t...
09/03/1991
5031549Method of introducing air into a rotary combustor
An improved method of introducing air into a rotary combustor for burning municipal solid waste in an incinerator, wherein a large amount of air is introduced over the top portion of the combustor adjacent the outlet end thereof to maintain the CO at acce...
07/16/1991
4976209Furnaces for incinerating waste material
A vertical chamber for waste disposal and heating purposes has an upright combustion chamber with an inlet for waste material, a grating at a lower chamber end and an adjustable burner controlled by a temperature sensor so that the burner operation can be...
12/11/1990
4955296Incinerator grate assembly
A stationary, stepped, downwardly inclined incinerator grate assembly includes independent combustion control at each step through the provision of laterally disposed, perforated support tubes each joined to an inclined grate plate, likewise having openin...
09/11/1990
4953477Method and apparatus for regulating the furnace output of incineration plants
For the purpose of regulating the furnace output of incineration plants with a combustion grate, the primary air supply is variously regulated by zones along the length of the grate as well as in the transverse direction of the combustion grate. A monitor...
09/04/1990
4924847Combustion system
The specification describes a system for initiating and promoting combustion of fuels such as wood, coal, oil, etc. Virtually complete combustion is achieved by feeding combustion air under pressure through openings in a diffuser plate with the diameter o...
05/15/1990
4922889Pelletized fuel burning heater
A heater for burning combustible pelletized fuel. The pelletized fuel is delivered at a controllable rate to a double-walled burn pot in an enclosed combustion chamber. Combustion air is injected into the combustion chamber at a pressure higher than the a...
05/08/1990
4840130Waste disposal system
A waste disposal system for the combustion of waste materials which includes a combustor having an inlet end and an outlet end with a furnace enclosing the outlet end. A step extends out from the back wall of the furnace which is spaced from and below the...
06/20/1989
4773386Solid fuel burning induced draft stove
An induced draft stove has a housing in which a food-supporting grate is disposed above a solid fuel-supporting grate. Burning solid fuel within the stove creates an induced flow of ambient combustion air to the fuel which is sequentially drawn into a pai...
09/27/1988
4762489Cooling apparatus
The cooling apparatus which is preferably constructed in the form of a grate cooler contains in its material inlet portion a material transfer arrangement with at least two rows lying behind one another of transversely extending air boxes which can be sup...
08/09/1988
4753177Fluidized bed reactor
A fluidized bed reactor (1) comprising a reactor chamber (4) having a gas distributor plate (5) for feeding primary air, and a space above said distributor plate (5) is divided into compartments (6) by means of partition walls (7) having discharge opening...
06/28/1988
4596233Solid fuel combustion equipment
Solid fuel combustion equipment in the form of a grate assembly comprises longitudinally extending support elements on which are mounted laterally orientated grate bars. The support elements are pivotable about their horizontal axes and are provided with ...
06/24/1986
4545309Furnace for burning flammable particles
There is disclosed a furnace for burning wooden wastes and, more specifically, sawdust and/or barks. The furnace is provided with an oil burner required for starting the fire. The draught from the oil burner fan is directed within a perforated box, locate...
10/08/1985
4545306High 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
4537141Combustion chamber for solid fuels
A series of primary-air orifices (4) extend into the combustion chamber surrounded by a housing (1). A sloping bottom (6) and a grate (12), likewise inclined at an angle (଱), are located underneath. The grate consists of a row of parallel pipes (15a...
08/27/1985
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