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| Number | Title | Issue Date |
| 4515093 | Method and apparatus for the recovery of hydrocarbons A method for generating steam by a high pressure, high intensity, or high heat release method of combustion in an elongated combustion zone having upstream and downstream ends and an intermediate location and utilizing a normally-solid fuel which produces... | 05/07/1985 |
| 4501206 | Method of igniting a pulverized-coal pilot-burner flame A method of igniting a pulverized-coal pilot-burner flame for a pulverized-coal annular burner flame having an internal back flow region, with the ignition energy being introduced centrally into the interior of the back flow region of the pulverized-coal ... | 02/26/1985 |
| 4495874 | Combustion of high ash coals A method is described for burning pulverized high ash coal in a furnace firebox and reducing ash fines which comprises (a) injecting a primary airstream containing a pulverized coal which is at least 7 wt % ash and a secondary airstream into the flame zone of ... | 01/29/1985 |
| 4492171 | Solid fuel burner A solid fuel burner apparatus is provided for burning low density, low mass fibrous fuels such as paper waste and biomass. The burner includes a combustion chamber having a solid fuel and primary air nozzle attached to one end thereof for directing pulver... | 01/08/1985 |
| 4479442 | Venturi burner nozzle for pulverized coal A new and improved burner for pulverized coal comprises a tubular nozzle for containing a primary, flowing stream of coal/air mixture having an outlet for discharging the stream into a combustion zone of a furnace. A venturi is mounted in the nozzle havin... | 10/30/1984 |
| 4474120 | Method for at least the two-stage ignition of a fuel dust power burner and a burner system for carrying out this method In a method for the ignition of a fuel dust power burner, in which the ignition energy is provided by a fuel dust pilot burner, for example for the ignition of a coal dust burner with a coal dust igniting flame, the ignition performance of the igniting fl... | 10/02/1984 |
| 4457241 | Method of burning pulverized coal A method of burning pulverized coal and other fuels comprises the steps of containing a primary flowing stream of coal/air mixture received adjacent an inlet end of a tubular nozzle for discharge at an outlet end into a combustion zone of a furnace for bu... | 07/03/1984 |
| 4445444 | Burner for combusting oxygen-coal mixture Burner for use in a coal gasification process wherein a combustible mixture is formed comprising a combustion supporting gas such as oxygen, and a coal slurry. To avoid deposition of slag and ash particles along the hot, exposed face of the burner, a dyna... | 05/01/1984 |
| 4444126 | Apparatus for combustion of a suspension of coal particles in water Combustion air preheated to 550° C. is forced into a suspension of wdered coal in water preheated to 100° C. in a portion of a burner upstream of the burner orifice. Air passes into the preheated suspension through a porous wall separating the end porti... | 04/24/1984 |
| 4434727 | Method for low load operation of a coal-fired furnace When a pulverized coal-fired furnace is operating at low loads, the primary air and pulverized coal stream discharging from the coal delivery pipe is split into a first and a second coal-air stream and independently directed into the furnace by tilting at... | 03/06/1984 |
| 4434747 | Burner-tilt drive apparatus for a pulverized coal fired steam generator In a pulverized coal-fired steam generator having a generally vertical furnace (1) and a plurality of fuel-air admission assemblies (10) arrayed in a vertical windbox (40) in one or more walls of the furnace (1), at least one of the fuel-air admission ass... | 03/06/1984 |
| 4428309 | Pulverized-coal and liquid-fuel dual-purpose burner A dual-purpose burner capable of utilizing either pulverized coal or liquid fuels such as heavy oil as alternate fuels, or both simultaneously, and if desired, utilizing the mixture of pulverized coal and steam or water and atomizing it to achieve a high ... | 01/31/1984 |
| 4428727 | Burner for solid fuels A burner for introducing a suspension of solid fuel particles into a combustion chamber which includes a tubular conduit arranged to receive the suspension therethrough, and flow diverting means positioned at the discharge end of the conduit, and subdivid... | 01/31/1984 |
| 4426939 | Method of reducing NOx and SOx emission The method of operating a furnace including the steps of conveying (30) pulverized coal in an air stream towards a furnace (10), separating (34) the stream into two portions (36,38), one being a fuel rich portion (38), and the other being a fuel lean port... | 01/24/1984 |
| 4426938 | Method of preparing ignition fuel pursuant to flow dynamics from a primary fuel flow for a pulverized fuel pilot light A method of igniting a pulverized-coal annular burner flame having an internal back flow region, with the ignition energy being introduced centrally into the interior of the back flow region of the pulverized-coal annular burner flame. The ignition energy... | 01/24/1984 |
| 4422388 | Wood and other solid register burner A solid fuel burner of the type having a cylindrical combustion chamber with a horizontal axis, in which the solid fuel is introduced tangentially into at one end, ignited, and moved spirally to the other end. The chamber is lined with fire resistant mate... | 12/27/1983 |
| 4421064 | Heating boiler The invention reads on a heating boiler for solid fuel, comprising a combustion volume with fuel feeding aperture, air entry apertures and chimney flue, and a water volume, the latter bordering on said combustion volume by mediation of convection plates. ... | 12/20/1983 |
| 4412810 | Pulverized coal burner A pulverized coal burner including a primary throat having at its forward end a swirler for feeding pulverized coal and primary air in vortical flow, a secondary throat located outside the primary throat for supplying secondary air and a burner throat loc... | 11/01/1983 |
| 4397295 | Burner for burning pulverized fuel A burner for burning pulverized fuel, especially pulverized lignite or coal, comprises a combustion chamber 1, and an ignition chamber 2 having an ignition burner 9. A supply line 5 for powder and air for pneumatic conveyance debouches into the ignition c... | 08/09/1983 |
| 4387654 | Method for firing a rotary kiln with pulverized solid fuel Disclosed is a method for firing a kiln as well as a method for producing cement clinker in which pulverized coal is initially entrained in an airflow of about 2% of the theoretical amount of air needed to combust the coal and transport it to a burner. Su... | 06/14/1983 |
| 4385569 | Apparatus for the prevention of fire spreading within the feeding channel leading into the fire chamber of a furnace for solid fuel The furnace has a feeding channel (4) through which firewood is transported into a fire chamber (3). A steam pipe (10) leads into the channel (4). Through said pipe (10), steam is introduced into the solid fuel material in bursts as soon as a certain temp... | 05/31/1983 |
| 4351645 | Partial oxidation burner apparatus A burner for producing synthesis gas, fuel gas or reducing gas from slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbon fuel. The burner has a high turndown feature and comprises a central conduit; a central bunch of parallel tubes th... | 09/28/1982 |
| 4351251 | Combustion apparatus A combustion apparatus which has a burner having an inner wall lined with a refractory material forming a combustion chamber and an outer wall spaced from the inner wall by spacing members. A primary air supply supplies air to the burner combustion chambe... | 09/28/1982 |
| 4337030 | Solid fuel fired kiln A fuel burning kiln and process especially adapted for utilizing solid fuel in which one or more burners are accommodated within the kiln and a fuel and air mixture and a supplementary air supply are supplied to the combustion chamber of the burner throug... | 06/29/1982 |
| 4321034 | Coal burners, rotary furnaces incorporating the same and methods of operating A coal burner and rotary metal melting furnace incorporating the same is provided in the form of a generally cylindrical furnace rotatable about a horizontal axis and fired through one end with pulverized coal and preheated air through a burner structure ... | 03/23/1982 |
| 4318355 | Burner structure for particulate fuels A heater for burning particulate fuels in which a stream of air carrying combustible particles is injected upward into a combustion chamber (22) between two spaced perforated tubular members (33, 34), the outer member being taller. A deflector (55) locate... | 03/09/1982 |
| 4304196 | Apparatus for tilting low load coal nozzle In a pulverized coal-fired steam generator having a generally vertical furnace (1) and a plurality of fuel-air admission assemblies (10) arrayed in a vertical windbox (40) in one or more walls of the furnace (1), at least one of the fuel-air admission ass... | 12/08/1981 |
| 4301749 | Fluidized bed combustion Fluidized bed combustors and provision for the operation of such combustors so that the fluidizing medium supplied to one part is at a velocity different from that at which air is supplied to an adjacent part.... | 11/24/1981 |
| 4289481 | Fuel and apparatus for drying grain Finely-divided grain products in general and grain dust in particular are useful fuels which are advantageously employed in the drying of harvested grain to a moisture content suitable for storage and/or further processing. A grain dryer designed for such... | 09/15/1981 |
| 4263856 | Providing supplemental pulverized coal for load regain An apparatus and method for maintaining the heat input to a pulverized coal-fired steam generator when firing a lower grade coal than for which the pulverizers were designed. A dense phase pulverized coal stream consisting essentially of a mixture of pulv... | 04/28/1981 |
| 4252069 | Low load coal bucket An improved fuel-air admission assembly incorporating a split coal bucket which permits a pulverized coal-fired furnace to be operated at low loads without the use of auxiliary fuel to provide stabilization. The split coal bucket comprises an upper and a ... | 02/24/1981 |
| 4249470 | Furnace structure A furnace structure has a particle separator for separating a mixture of a transport fluid and pulverized coal into a coarse coal fraction and a fine coal fraction, a furnace, a burner assembly for burning the pulverized coal, and a windbox for providing ... | 02/10/1981 |
| 4249471 | Method and apparatus for burning pelletized organic fibrous fuel An apparatus and method are described for producing a combustible mixture of a solid fuel pellet made from organic fibrous material and a flammable gas or liquid. A suitable burner structure is described for burning the fuel mixture in an overfire system ... | 02/10/1981 |
| 4246853 | Fuel firing method A method of operating a pulverized coal furnace wherein the coal is introduced with minimal oxygen through an intermediate zone of the furnace which also has a relatively low oxygen content. The carbon particles are projected into an upstream portion of t... | 01/27/1981 |
| 4206712 | Fuel-staging coal burner A fuel-staging burner assembly and method in which a burner nozzle has separate, concentrically disposed elements to burn coarse and fine coal particles under different combustion conditions to reduce the production of nitrogen oxides from the combustion ... | 06/10/1980 |
| 4147115 | Incinerator with gas generation An incinerator for burning combustible materials, especially waste materials, and for generating hot gases for use in processes outside the incinerator, includes a cylindrical combustion chamber having closed end walls and a generally tangential opening i... | 04/03/1979 |
| 4145187 | Treatment of material with hydrogen chloride This invention relates to apparatus for refining platinum group metal concentrates and the separation therefrom of silver and of the majority of base metals which are present with them. In more detail, the apparatus comprises means for reacting together g... | 03/20/1979 |
| 4080932 | Industrial boilers An industrial boiler installation, comprising an outer continuous shell within which is contained the water space of the boiler, a furnace and a plurality of smoke tubes for passage therethrough of the products of combustion of the furnace and the boiler ... | 03/28/1978 |
