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Matches 351 - 400 out of 2,553

Document Document Title
WO/2000/061992A1
A swirler (10) for a fossil-fuel fired burner used in connection with a furnace or boiler has a hollow guide pipe (20) supporting several swirl blades (30) at an end (50) adjacent the furnace. Internal tunnels (34) within the swirl blade...  
WO/2000/037853A1
A method of operating a solid fuel-fired furnace (10) of the type having a plurality of windboxes (20) each having a plurality of compartments (32, 48) through which fuel and air are introduced into the furnace. The method includes suppl...  
WO/2000/028097A1
Device and relative method to inject technological gases and solid material in powder form, in a furnace used in steel and metallurgical melting processes, comprising an emission element (23) including an outlet mouth (11) arranged at a ...  
WO/2000/009764A1
A method for producing liquid pig iron or steel intermediate products made from lumpy ferriferous material in a melt-down gasifier, whereby coal and gas containing oxygen are added, a reduction gas is formed simultaneously and the ferrif...  
WO/1999/028678A1
The invention concerns a method for automatized combustion of solid fuel in a combustion apparatus which comprises a burner (1) with a device (1), which is rotatable about the centre axis of the burner for stirring the fuel in the burner...  
WO/1999/001525A1
The fuel injector nozzle (10) for a gasifier includes a protective recfractory sheath (70) that is flush mounted at a downstream end proximate the nozzle outlet portion (40). The refractory insert (72) is of annular form to surround the ...  
WO1998021524A3
A burner having lower emissions and lower unburned fuel losses by providing a transition zone to act as a buffer between the primary and secondary air streams. The transition zone provides improved control of near-burner mixing and flame...  
WO/1998/033870A1
The operating life of a fuel injector nozzle (10) for a gasifier is prolonged by shielding the fuel injector nozzle (10) with a preformed protective insulating sheath (70) before the fuel injector nozzle (10) is installed inside a prehea...  
WO/1998/029690A1
One kind of fuel selected from powder fuel and liquid fuel is injected from a fuel injection means, primary air is jetted from primary air jetting means provided outside and inside the fuel injection means so as to form outer and inner s...  
WO/1998/025076A1
The inventive burner for the combustion of fine-grain to dustlike solid fuels is fitted with a central inner tube (1) to feed solid fuel (4) and a ring slot (6) to feed oxygen and oxygen-containing gas, surrounding the central inner tube...  
WO/1998/021524A2
A burner (40) having a transition zone (46) to act as a buffer between the primary zone (42) and the secondary zones (48, 50). The transition zone (46) allows improved control of near-burner mixing and flame stability by providing limite...  
WO/1998/014741A1
The invention relates to a method for adjusting the flow velocity of reaction gas and the dispersion air of pulverous solids when feeding reaction gas and finely divided solids to the reaction shaft (6) of a suspension smelting furnace f...  
WO/1998/008026A1
A combustion burner which comprises a mixture nozzle, a gas feeding nozzle and guide means. The mixture nozzle extends into a furnace to define a mixture flow passage, through which a mixture containing a powder solid fuel and a gas for ...  
WO/1998/003819A1
A combustion burner which comprises a mixture nozzle (2) defining a mixed fluid flow passage, through which a mixed fluid (1) containing pulverized coal and air for conveyance flows toward a furnace (4), a secondary air flow passage, thr...  
WO/1998/001704A1
A minimum recirculation flame control (MRFC) solid fuel nozzle tip (12) that is particularly suited to being cooperatively associated with a pulverized solid fuel nozzle (34) of a firing system of the type employed in a pulverized solid ...  
WO/1997/047923A1
A fluent fuel fired burner formed with cylindrical discharge passages of annular cross section (8, 10, 12, 14, 16) arranged co-axially of a central passage (8) accommodating secondary burner means (6) and connected to discharge a combust...  
WO/1997/029315A1
A burner assembly (10) in which an inlet (16A) is provided for receiving a mixture of particulate fuel and air, an outlet (20B) extending at an angle to the axis of the inlet. Passages (16C, 16E) connect the inlet and the outlet for pass...  
WO/1997/029325A1
A burner assembly (10) for a furnace in which an outer tubular member (12) extends around an inner tubular member (14) in a coaxial relation thereto to define an annular passage (16) into which fuel is introduced in a tangential directio...  
WO/1997/029326A1
A burner assembly (10) in which an inlet (28) is located at one end of a tubular member (22) thereof for receiving a fuel/air mixture, and an outlet is located at the other end of the tubular member (22) for discharging the mixture. Seco...  
WO/1997/023751A1
A steam generating system (10) includes a nozzle for pulverized coal and air which includes an elongated generally cylindrical body (30) having a nozzle at one axial portion thereof. The apparatus also includes a nozzle tip (34) that is ...  
WO/1997/009566A1
In a process for buring fuel (5) consisting of free hydrocarbons and/or solid fuel in fine-grained to dust form, to attain as eddy-free a mixture of oxygen and fuel as possible, several streams (13) of fuel are blown on curving path in r...  
WO/1996/038691A1
The invention pertains to the field of power engineering and can be used for firing and stabilising the combustion of low-grade coals. According to the invention, two streams are formed from the fuel which is to be fed in for burning, na...  
WO/1996/038690A1
In a burner (2) for burning fuels for use in a combustible gas-containing reactor, in order fully to burn the fuel supplied and make full use of the oxygen fed in, there are a central inner pipe (5) for supplying all the oxygen and an an...  
WO/1996/023171A1
An improved burner (10) for partial oxidation process gas generators is provided which has annular passages (26) formed between coaxially aligned conduits (13, 24) extending from upstream sources to the downstream reaction zone. An outer...  
WO/1996/021125A1
The proposed low-emission vortex furnace is intended for use in burning organic fuel and can be used most effectively for burning dust. The proposed low-emission vortex furnace comprises a combustion chamber (1) with a cold prismatic fun...  
WO/1996/020782A1
A fluidized bed reactor system comprising a fluidized bed reaction chamber (12) delimited by side walls and a first grid (30) in the bottom thereof and an external cooling chamber (20) delimited by side walls and a second grid (46) in th...  
WO/1996/020781A1
A fluidized bed assembly, such as an ash cooler, includes first and second fluidized bed chambers each having a bottom portion and side walls. Fluidizing gas is introduced into the bottom portions to fluidize particulates within the cham...  
WO/1996/009497A1
A paste nozzle (15) for feeding a particulate material in the form of a paste (15a) into a fluidized bed (6) in a power plant, wherein the nozzle (15) comprises an air pipe (19) which is disposed inside the nozzle (15) and which directs ...  
WO/1996/004514A1
A refrigerator capable of constantly maintaining so high a humidity that is suitable for vegetables, and keeping vegetables fresh for a long period of time, by using a moisture permeable film of an automatically variable permeability in ...  
WO/1995/032149A1
In the manufacture of sulfuric acid, elemental sulfur is reacted to by finely atomizing liquid sulfur into a vortex of combustion air and returning the atomized sulfur in the vortex during combustion, the ratio of air and sulfur supplied...  
WO/1995/018350A1
This invention provides a heating tube and a heating plate which are capable of greatly improving the heat transfer efficiency of a conventional finned heating pipe and a conventional heating plate. Copper oxide powder is deposited in a ...  
WO/1995/017629A1
A coal nozzle apparatus (10) which includes a generally cylindrical main body (12) having an inlet and an outlet (14) and a generally cylindrical tip section (20) disposed in generally coaxial relationship with the main body (12). The ap...  
WO/1995/015465A1
A radiant energy collecting apparatus (11) for collecting and concentrating solar energy having a primary parabolic reflector (16) which focuses the sun's rays on a focal line (18) and has a principle axis (17) passing through the focal ...  
WO/1995/013502A1
A method and an apparatus for combusting pulverized fuels in a tangentially fired boiler and reducing emission of nitrogen oxides comprises the steps of feeding a substantially air-deficient mixture of fuel and primary air through a fuel...  
WO/1994/027086A1
An integrated low NOx tangential firing system (12) that is particularly suited for use with pulverized solid fuel-fired furnaces (10), and a method of operating a pulverized solid fuel-fired furnace (10) equipped with an integrated low ...  
WO/1994/008178A1
Apparatus for burning crude oil has a conduit (12) without a flow restriction orifice and which receives oil to be burned. The conduit (12) has a plurality of inclined nozzles (28) which are also arranged about the longitudinal axis of t...  
WO/1994/005952A1
A fossil fuel/air burner nozzle is provided with a wall (22) at its inlet, in which are apertures (24) which narrow in a direction radially outward of the nozzle. Each aperture is axially aligned with a respective bluff member (18) at th...  
WO/1994/004871A1
The particulate fuel is induced to follow a different flow path from that of its transport air, as the fuel and transport air pass through the distribution device. The pattern and density of distribution of particulate fuel in the transp...  
WO/1993/010398A1
The apparatus includes a pulse combustor (10, 12, 14, 18) for generating a stream of atomization fluid and an oscillating flow field and introduction apparatus (20) for introducing to the influence of the oscillating stream of atomizatio...  
WO/1993/006417A1
The invention relates to method and nozzle for supply of paste fuel to a fluidized bed. The nozzle comprises a conduit (15) for supply of paste fuel, which forms an end surface (39) tapering towards the nozzle outlet in the proximity the...  
WO/1992/003212A1
In a process for improving the utilization of heat from combustion waste gases containing dust or ash, at least one compound containing the active component of the dust is heated very rapidly to a temperature at least 10 °C above its de...  
WO/1992/003211A1
Complete, dry desulphuration of waste gases from the combustion of coal dust, which contain SO2 and fly ash, is carried out by heating the fly ash very rapidly to a high temperature below the sintering temperature of the ash and cooling ...  
WO/1992/000489A1
A combustion system provided with a mixture supply tube through which a mixture of pulverized coal and combustion air flows. The mixture is injected into a furnace through the mixture supply tube, and ignited. A flame holding ring which ...  
WO/1991/000366A1
Described is a process for heating a metallurgical furnace, in particular an arc furnace charged with scrap metal or a similar solid material. Oxygen and fuel are fed in through the furnace wall by at least one burner located above the m...  
WO/1990/008289A1
This invention concerns a method and apparatus for starting the boiler of a solid-fuel fired power plant and for ensuring the burning process of the fuel. According to the invention, the main fuel of the boiler is ignited by entering an ...  
WO/1989/011346A1
A method and apparatus is disclosed for high intensity treatment of solid particles in a combustion chamber (10) by introducing the particles into the combustion chamber (10) as a plurality of streams (30, 32, 34, 36) wherein fuel is int...  
WO/1989/001117A1
A burner (2) especially adapted for use with pulverized fuel slurries, such as pulverized coal-water slurries. The burner has an atomizing nozzle (10) which disperses the slurry in the form of multiple, diverging spray cones (22) issuing...  
WO/1988/010398A1
A process and apparatus are described with which pulverized coal can be burned with an essentially non-turbulent flame in which the residence time of individual coal particles within the burner flame is generally increased. Pulverized co...  
WO/1988/008505A1
Burner having two coaxially mounted tubes (3, 4). The outer tube (3) is provided with means to introduce both air and particulate matter in the space between both tubes. For conveying of solid matter between both tubes screw conveyor mea...  
WO/1988/008104A1
A fluid mixing device has a chamber (6) with a fluid inlet (1) and an opposite fluid outlet (4). The device causes a flow of a first fluid wholly occupying the inlet to separate from the chamber wall (5) upstream of the outlet (4). The d...  

Matches 351 - 400 out of 2,553