WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F23J　REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES {(from fluidised-bed combustion apparatus F23C 11/02T5)}; FLUES (precipitating dust from flue gases B01D; composition of fuel C10; combustion apparatus for consuming smoke or fumes, e.g. exhaust gases, F23G 7/06)

F23J 1/00 Removing ash, clinker, or slag from combustion chamber {arrangements for collecting bottom ash and flyash F23J 3/06; removing flyash from flue gas F23J 15/022}

F23J 1/02 ・Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyers, by employing suction devices

F23J 1/04 ・Hand tools, e.g. rakes, prickers, tongs

F23J 1/06 ・Mechanically-operated devices, e.g. clinker pushers (forming part of the grate F23H)

F23J 1/08 ・Liquid slag removal

F23J 3/00 Removing solid {deposited} residues from passages or chambers beyond the fire, e.g. from flues by soot blowers {(soot blowers per se F28G 1/16)}

F23J 3/02 ・Cleaning furnace tubes; Cleaning flues or chimneys (by means which do not differ materially from the cleaning of any other tube once the fire is out B08B)

F23J 3/023 ・・{cleaning the fireside of watertubes in boilers}

F23J 3/026 ・・{cleaning the chimneys}

F23J 3/04 ・Traps

F23J 3/06 ・Systems for accumulating residues from different parts of furnace plant

F23J 7/00 Arrangement of devices for supplying chemicals to fire (supplying chemicals to fire C10L; {to fumes F23J 15/003})

F23J 9/00 Preventing premature solidification of molten combustion residues

F23J 11/00 Devices for conducting smoke or fumes, e.g. flues ({removing fumes other than combustion fumes from the area where they are produced, in general B08B 15/00}; heat insulation therefor E04B 1/94; chimneys E04H 12/28; removing cooking fumes from domestic stoves or ranges F24C 15/20; {fume conduits of furnaces, kilns, ovens, or retorts F27D 17/002})

F23J 11/02 ・for conducting smoke or fumes originating from various locations to the outside, e.g. in locomotive sheds, in garages

F23J 11/04 ・in locomotives; in road vehicles; in ships

F23J 11/06 ・・for conducting smoke horizontally

F23J 11/08 ・for portable apparatus

F23J 11/10 ・for tents; for log huts; for other inflammable structures

F23J 11/12 ・Smoke conduit systems for factories or large buildings

F23J 13/00 Fittings for chimneys or flues (staying, stiffening E04H; means for facilitating climbing E06C; draught-inducing apparatus associated with chimneys or flues F23L)

F23J 13/02 ・Linings; Jackets; Casings

F23J 13/025 ・・{composed of concentric elements, e.g. double walled (in general F16L; terminals for balanced flue arrangements F23L 17/04)}

F23J 13/04 ・Joints; Connections (pipe joints in general F16L)

F23J 13/06 ・Mouths; Inlet holes

F23J 13/08 ・Doors or covers specially adapted for smoke-boxes, flues, or chimneys (in general E06B)

F23J 15/00 Arrangement of devices for treating smoke or fumes (treating smoke or fumes, see the relevant class for the treatment, e.g. B01D 53/00)

F23J 15/003 ・{for supplying chemicals to fumes, e.g. using injection devices (to fire F23J 7/00)}

F23J 15/006 ・{Layout of treatment plant}

F23J 15/02 ・of purifiers, e.g. for removing noxious material (traps for solid {deposits}F23J 3/04)

F23J 15/022 ・・{for removing solid particulate material from the gasflow}

F23J 15/025 ・・・{using filters}

F23J 15/027 ・・・{using cyclone separators}

F23J 15/04 ・・using washing fluids {scrubbers for removing solids only F23J 15/022}

F23J 15/06 ・of coolers

F23J 15/08 ・of heaters

F23J 99/00 Subject matter not provided for in other groups of this subclass

F23J 2211/00 Flue gas duct systems

F23J 2211/10 ・Balanced flues (combining air supply and flue gas exhaust)

F23J 2211/101 ・・with coaxial duct arrangement

F23J 2211/20 ・Common flues for several combustion devices

F23J 2211/30 ・Chimney or flue associated with building ventilation system

F23J 2211/40 ・Chimney with internal flue pipe system

F23J 2213/00 Chimneys or flues

F23J 2213/10 ・Linings

F23J 2213/101 ・・Fastening means therefor

F23J 2213/20 ・Joints; Connections

F23J 2213/201 ・・between stack and branch pipes

F23J 2213/202 ・・between duct or stack sections

F23J 2213/203 ・・between stack/duct and combustion apparatus

F23J 2213/204 ・・Sealing arrangements

F23J 2213/30 ・Specific materials

F23J 2213/301 ・・flexible

F23J 2213/302 ・・plastic

F23J 2213/303 ・・metallic

F23J 2213/304 ・・ceramic

F23J 2213/305 ・・glass

F23J 2213/40 ・Heat insulation fittings

F23J 2213/50 ・Top cover

F23J 2213/60 ・Service arrangements

F23J 2213/70 ・Safety arrangements

F23J 2215/00 Preventing emissions (solids only F23J 2217/00)

F23J 2215/10 ・Nitrogen; Compounds thereof

F23J 2215/101 ・・Nitrous oxide(N2O)

F23J 2215/20 ・Sulfur; Compounds thereof

F23J 2215/30 ・Halogen; Compounds thereof

F23J 2215/301 ・・Dioxins; Furans

F23J 2215/40 ・Carbon monoxide

F23J 2215/50 ・Carbon dioxide

F23J 2215/60 ・Heavy metals; Compounds thereof

F23J 2217/00 Intercepting solids

F23J 2217/10 ・by filters

F23J 2217/101 ・・Baghouse type

F23J 2217/102 ・・electrostatic

F23J 2217/103 ・・ultrafine (HEPA)

F23J 2217/104 ・・High temperature resistant (ceramic) type

F23J 2217/105 ・・Granular bed

F23J 2217/20 ・by baffles

F23J 2217/30 ・by screens

F23J 2217/40 ・by cyclones

F23J 2217/50 ・by cleaning fluids (washers or scrubbers)

F23J 2217/60 ・using settling/precipitation chambers

F23J 2219/00 Treatment devices

F23J 2219/10 ・Catalytic reduction devices

F23J 2219/20 ・Non-catalytic reduction devices

F23J 2219/201 ・・Reducing species generators, e.g. plasma, corona

F23J 2219/30 ・Sorption devices using carbon, e.g.coke

F23J 2219/40 ・Sorption with wet devices, e.g. scrubbers

F23J 2219/50 ・Sorption with semi-dry devices, e.g. with slurries

F23J 2219/60 ・Sorption with dry devices, e.g. beds

F23J 2219/70 ・Condensing contaminants with coolers

F23J 2219/80 ・Quenching

F23J 2700/00 Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators

F23J 2700/001 ・Ash removal, handling and treatment means

F23J 2700/002 ・Ash and slag handling in pulverulent fuel furnaces

F23J 2700/003 ・Ash removal means for incinerators

F23J 2900/00 Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes

F23J 2900/01001 ・Sorting and classifying ashes or fly-ashes from the combustion chamber before further treatment

F23J 2900/01002 ・Cooling of ashes from the combustion chamber by indirect heat exchangers (for preheating air F23L 2900/15041)

F23J 2900/01003 ・Ash crushing means associated with ash removal means

F23J 2900/01004 ・Separating water from ash

F23J 2900/01005 ・Mixing water to ash

F23J 2900/01006 ・Airlock sealing associated with ash removal means

F23J 2900/01007 ・Thermal treatments of ash, e.g. temper or shock-cooling for granulation

F23J 2900/01009 ・Controls related to ash or slag extraction

F23J 2900/01021 ・Removing ashes from the ash pit using reciprocating means, e.g. pushers

F23J 2900/11001 ・Conducting systems with a gas flow bypass from main flue to an auxiliary flue

F23J 2900/11002 ・Modelling systems adapted for designing arrangements for conducting or purifying combustion fumes, e.g. flues

F23J 2900/13001 ・Preventing or reducing corrosion in chimneys

F23J 2900/13002 ・Initial heating of the flue before starting combustion

F23J 2900/13003 ・Means for reducing the noise in smoke conducing ducts or systems

F23J 2900/13004 ・Water draining devices associated with flues

F23J 2900/13005 ・Protections for chimneys or flue tops against external factors, e.g. birds

F23J 2900/13006 ・Devices for heating the chimney top to avoid ice formation

F23J 2900/13021 ・Means for supporting the lining of conducting means, e.g. ducts or chimneys

F23J 2900/13022 ・Manufacturing processes for the lining of conducting means, e.g. by extrusion

F23J 2900/13023 ・Ducts with non-circular cross-section

F23J 2900/15001 ・Irradiating fumes with electron or light beams, e.g. UV, for oxidizing or dissociating SOx and NOx

F23J 2900/15002 ・Cleaning fumes by letting them to pass a molten metal bath

F23J 2900/15003 ・Supplying fumes with ozone

F23J 2900/15004 ・Preventing plume emission at chimney outlet

F23J 2900/15021 ・Preventing emission of hexavalent chromium at the chimney outlet

F23J 2900/15022 ・Electrochemical cell filters

F23J 2900/15023 ・Magnetic filters

F23J 2900/15024 ・Photocatalytic filters

F23J 2900/15025 ・Cyclone walls forming heat exchangers

F23J 2900/15026 ・Cyclone separators with horizontal axis

F23J 2900/15027 ・Preventing emission of CO2 at the chimney outlet by using sea weeds filters or absorbers

F23J 2900/15041 ・Means for absorbing SOx using seawater

F23J 2900/15061 ・Deep cooling or freezing of flue gas rich of CO2 to deliver CO2-free emissions, or to deliver liquid CO2

F23J 2900/15081 ・Reheating of flue gases