F23KFEEDING FUEL TO COMBUSTION APPARATUS fuel feeders specially adapted for fluidised bed combustion apparatus F23C10/22 F23K1/00 F23K1/00Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus F23K1/02Mixing solid fuel with a liquid, e.g. preparing slurries F23K1/04Heating fuel prior to delivery to combustion apparatus F23K3/00Feeding or distributing of lump or pulverulent fuel to combustion apparatus F23K3/02Pneumatic feeding arrangements, i.e. by air blast F23K3/04for locomotive boiler furnaces F23K3/06for shaft-type furnaces F23K3/08for furnaces having movable grate bars F23K3/10Under-feed arrangements F23K3/12feeding by piston F23K3/14feeding by screw F23K3/16Over-feed arrangements F23K3/18Spreader stokers F23K3/20with moving hoppers F23K3/22Controlling thickness of fuel bed F23K5/00Feeding or distributing other fuel to combustion apparatus F23K5/002Gaseous fuel F23K5/005from a central source to a plurality of burners F23K5/007Details F23K5/02Liquid fuel F23K5/04Feeding or distributing systems using pumps from a central source to a plurality of burners F23K5/06 F23K5/06from a central source to a plurality of burners F23K5/08Preparation of fuel F23K5/10Mixing with other fluids F23K5/12Preparing emulsions burners spraying an emulsion of water and fuel into the combustion space F23D11/16 F23K5/14Details thereof F23K5/142Fuel pumps F23K5/145combined with fans F23K5/147Valves F23K5/16Safety devices cleaning or purging devices, e.g. filters F23K5/18 F23K5/18Cleaning or purging devices, e.g. filters F23K5/20Preheating devices in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44 F23K5/22Vaporising devices in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44 F23K2200/00 F23K2200/00Pretreatment and supply of solid fuel F23K2201/00Pretreatment of solid fuel F23K2201/10Pulverizing F23K2201/1003Processes to make pulverulent fuels F23K2201/1006Mills adapted for use with furnaces F23K2201/101to a specific particle size F23K2201/103with hot gas supply F23K2201/20Drying F23K2201/30Separating F23K2201/50Blending F23K2201/501with other fuels or combustible waste F23K2201/503with non-combustible liquids to prepare slurries F23K2201/505with additives F23K2203/00Feeding arrangements F23K2203/002Feeding devices for steam boilers, e.g. in locomotives F23K2203/004Feeding devices with reciprocating members F23K2203/006Fuel distribution and transport systems for pulverulent fuel F23K2203/008Feeding devices for pulverulent fuel F23K2203/10Supply line fittings F23K2203/101Wear protection devices F23K2203/102Flashback safety, e.g. inertizing devices F23K2203/103Storage devices F23K2203/104Metering devices F23K2203/105Flow splitting devices to feed a plurality of burners F23K2203/20Feeding/conveying devices F23K2203/201using pneumatic means F23K2203/202using screws F23K2203/203using pistons or rams F23K2300/00Pretreatment and supply of liquid fuel F23K2300/10Pretreatment F23K2300/101Application of magnetism or electricity F23K2300/103Mixing with other fluids F23K2300/20Supply line arrangements F23K2300/201Pumps F23K2300/202Filtering F23K2300/203Purging F23K2300/204Preheating F23K2300/205Vaporising F23K2300/206Control devices F23K2400/00Pretreatment and supply of gaseous fuel F23K2400/10Pretreatment F23K2400/20Supply line arrangements F23K2400/201Control devices F23K2900/00Special features of, or arrangements for fuel supplies F23K2900/00001Treating the fuel, either liquid or gaseous, with sound waves to enhance fuel properties F23K2900/00002Treating the fuel, either liquid or gaseous, with far-infrared radiations [FIR] to enhance fuel properties F23K2900/01001Cleaning solid fuel before combustion to achieve reduced emissions F23K2900/01002Treating solid fuel with electromagnetic fields before combustion F23K2900/01003Pulverizing solid fuel in vacuum or a reduced pressure environment F23K2900/01041Heating by using exhaust gas heat F23K2900/03001Airlock sections in solid fuel supply lines F23K2900/05001Control or safety devices in gaseous or liquid fuel supply lines F23K2900/05002Valves for gaseous fuel supply lines F23K2900/05003Non-continuous fluid fuel supply F23K2900/05004Mixing two or more fluid fuels F23K2900/05081Treating the fuel with catalyst to enhance combustion F23K2900/05082Removing gaseous substances from liquid fuel line, e.g. oxygen F23K2900/05083Separating watery fractions from liquid fuel F23K2900/05084Creating a combustible foam of liquid fuels and air F23K2900/05141Control or safety devices in liquid fuel supply line F23K2900/05142Special materials for liquid fuel supply lines