WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F23G CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION

  NOTE - This subclass covers also the burning of low-grade fuel of solid, liquid, or gaseous nature.

F23G 1/00 Furnaces for cremation of human or animal carcasses

F23G 5/00 Incineration of waste (of specific waste F23G 7/00); Incinerator constructions; Details, accessories or control therefor

F23G 5/002 ・{characterised by their grates (F23G 5/05 takes precedence)}

F23G 5/004 ・・{with endless travelling grates}

F23G 5/006 ・{General arrangement of incineration plant, e.g. flow sheets}

F23G 5/008 ・{adapted for burning two or more kinds, e.g. liquid and solid, of waste being fed through separate inlets}

F23G 5/02 ・with pretreatment

F23G 5/027 ・・pyrolising or gasifying stage (pyrolisation of sludge C02F 11/00; destructive distillation of carbonaceous materials C10B 53/00)

F23G 5/0273 ・・・{using indirect heating}

F23G 5/0276 ・・・{using direct heating}

F23G 5/033 ・・comminuting or crushing

F23G 5/04 ・・drying

F23G 5/05 ・・・using drying grates

F23G 5/08 ・having supplementary heating

F23G 5/085 ・・{High-temperature heating means, e.g. plasma, for partly melting the waste}

F23G 5/10 ・・electric

F23G 5/12 ・・using gaseous or liquid fuel (F23G 5/14 takes precedence)

F23G 5/14 ・・including secondary combustion

F23G 5/16 ・・・in a separate combustion chamber

F23G 5/165 ・・・・{arranged at a different level}

F23G 5/18 ・・・in a stack

F23G 5/20 ・having rotating or oscillating drums

F23G 5/22 ・・the drums being conically shaped

F23G 5/24 ・having a vertical, substantially cylindrical, combustion chamber

F23G 5/245 ・・{with perforated bottom or grate}

F23G 5/26 ・・having rotating bottom

F23G 5/28 ・・having raking arms

F23G 5/30 ・having a fluidised bed

F23G 5/32 ・the waste being subjected to a whirling movement, e.g. cyclonic incinerators

F23G 5/34 ・the waste being burnt in a pit or arranged in a heap for combustion

F23G 5/36 ・having a conical combustion chamber, e.g. "teepee" incinerators (F23G 5/22 takes precedence)

F23G 5/38 ・Multi-hearth arrangements

F23G 5/40 ・Portable or mobile incinerators

F23G 5/42 ・・of the basket type

F23G 5/44 ・Details; Accessories

F23G 5/442 ・・{Waste feed arrangements}

F23G 5/444 ・・・{for solid waste (F23G 5/448 takes precedence)}

F23G 5/446 ・・・{for liquid waste (F23G 5/448 takes precedence)}

F23G 5/448 ・・・{in which the waste is fed in containers or the like}

F23G 5/46 ・・Recuperation of heat

F23G 5/48 ・・Preventing corrosion

F23G 5/50 ・Control or safety arrangements

F23G 7/00 Incinerators or other apparatus for consuming industrial waste, e.g. chemicals (incinerator closets A47K 11/02; oxidation of sludge C02F 11/06; burners in general, burner details F23D; incinerating radioactive waste G21F 9/00)

F23G 7/001 ・{for sludges or waste products from water treatment installations (F23G 5/008 takes precedence)}

F23G 7/003 ・{for used articles}

F23G 7/005 ・・{cars, vehicles}

F23G 7/006 ・・{wires, cables (production and refining of metals C22B, e.g. from scrap to produce non-ferrous metals C22B 7/00; salvaging material from cables H01B 15/003)}

F23G 7/008 ・{for liquid waste (waste oil F23G 7/05, waste liquors F23G 7/04, sludges F23G 7/001)}

F23G 7/02 ・of bagasse, megasse or the like

F23G 7/04 ・of waste liquors, e.g. sulfite liquors

F23G 7/05 ・of waste oils

F23G 7/06 ・of waste gases or noxious gases, e.g. exhaust gases (exhaust apparatus for engines with means for rendering the exhaust innocuous, e.g. by thermal or catalytic conversion, F01N 3/08; combustion of uncombusted material from primary combustion within apparatus for combustion of solid or fluent fuel F23B, {of non combusted material from primary combustion of solid fuels F23B 5/00; of gases produced by primary combustion of solid fuels F23B 90/04}, F23C)

F23G 7/061 ・・{with supplementary heating}

F23G 7/063 ・・・{electric heating}

F23G 7/065 ・・・{using gaseous or liquid fuel}

F23G 7/066 ・・・・{preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator}

F23G 7/068 ・・・・・{using regenerative heat recovery means}

F23G 7/07 ・・in which combustion takes place in the presence of catalytic material

  WARNING - This subgroup [IPC8] introduced in January 2006 is not complete. Documents from IPC7-based groups are in the process of being reorganised to this new group

F23G 7/08 ・・using flares, e.g. in stacks

F23G 7/085 ・・・{in stacks}

F23G 7/10 ・of field or garden waste {or biomasses}

F23G 7/105 ・・{of wood waste}

F23G 7/12 ・of plastics, e.g. rubber

F23G 7/14 ・of contaminated soil, e.g. by oil

F23G 2200/00 Waste incineration

F23G 2201/00 Pretreatment

F23G 2201/10 ・Drying by heat

F23G 2201/101 ・・using indirect heat transfer

F23G 2201/20 ・Dewatering by mechanical means

F23G 2201/30 ・Pyrolysing

F23G 2201/301 ・・Treating pyrogases

F23G 2201/302 ・・Treating pyrosolids

F23G 2201/303 ・・Burning pyrogases

F23G 2201/304 ・・Burning pyrosolids

F23G 2201/40 ・Gasification

F23G 2201/50 ・Devolatilising; from soil, objects

F23G 2201/60 ・Separating

F23G 2201/601 ・・different calorific values

F23G 2201/602 ・・different sizes

F23G 2201/603 ・・recyclible material

F23G 2201/70 ・Blending

F23G 2201/701 ・・with additives

F23G 2201/702 ・・with other waste

F23G 2201/80 ・Shredding

F23G 2201/90 ・Cooling

F23G 2202/00 Combustion

F23G 2202/10 ・in two or more stages

F23G 2202/101 ・・with controlled oxidant supply

F23G 2202/102 ・・with supplementary heating

F23G 2202/103 ・・in separate chambers

F23G 2202/104 ・・with ash melting stage

F23G 2202/105 ・・with waste supply in stages

F23G 2202/106 ・・with recirculation of unburned solid or gaseous matter into combustion chamber

F23G 2202/20 ・to temperatures melting waste

F23G 2202/30 ・in a pressurised chamber

F23G 2202/40 ・in a pulsed combustion chamber

F23G 2202/50 ・in a matrix bed combustion chamber

F23G 2202/60 ・in a catalytic combustion chamber

F23G 2202/70 ・with application of specific energy

F23G 2202/701 ・・Electrical fields

F23G 2202/703 ・・Acoustic energy

F23G 2203/00 Furnace arrangements

F23G 2203/10 ・Stoker grate furnace

F23G 2203/101 ・with stepped or inclined grate

F23G 2203/103 ・with roller grate

F23G 2203/105 ・with endless chain or travelling grate

F23G 2203/107 ・with vibrating grate

F23G 2203/20 ・Rotary drum furnace

F23G 2203/201 ・・using oscillating movement

F23G 2203/202 ・・rotating around substantially vertical axis

F23G 2203/203 ・・with conically shaped drum

F23G 2203/204 ・・having non-circular inner cross-section

F23G 2203/205 ・・with water-cooled wall

F23G 2203/206 ・・with charging ports in the sidewall

F23G 2203/207 ・・with air supply ports in the sidewall

F23G 2203/208 ・・with interior agitating members

F23G 2203/209 ・・with variable inclination of rotation axis

F23G 2203/21 ・・with variable speed of rotation

F23G 2203/211 ・・Arrangement of a plurality of drums

F23G 2203/212 ・・Sealing arrangements between rotary and stationnary parts

F23G 2203/30 ・Cyclonic combustion furnace

F23G 2203/40 ・Stationary bed furnace

F23G 2203/401 ・・with support for a grate or perforated plate

F23G 2203/403 ・・with substantial cylindrical combustion chamber

F23G 2203/50 ・Fluidised bed furnace

F23G 2203/501 ・・with external recirculation of entrained bed material

F23G 2203/502 ・・with recirculation of bed material inside combustion chamber

F23G 2203/503 ・・with two or more fluidised beds

F23G 2203/504 ・・with essentially horizontal flow of bed material

F23G 2203/505 ・・with fluidised bed rotated as a whole

F23G 2203/60 ・Mobile furnace

F23G 2203/601 ・・carried by a vehicle

F23G 2203/70 ・Modular furnace

F23G 2203/80 ・Furnaces with other means for moving the waste through the combustion zone

F23G 2203/801 ・・using conveyors

F23G 2203/8013 ・・・Screw conveyors

F23G 2203/8016 ・・・Belt conveyors

F23G 2203/803 ・・Rams or pushers

F23G 2203/805 ・・using a rotating hearth

F23G 2204/00 Supplementary heating arrangements

F23G 2204/10 ・using auxiliary fuel

F23G 2204/101 ・・solid fuel

F23G 2204/103 ・・gaseous or liquid fuel

F23G 2204/20 ・using electric energy

F23G 2204/201 ・・Plasma

F23G 2204/202 ・・Laser

F23G 2204/203 ・・Microwave

F23G 2204/204 ・・Induction

F23G 2205/00 Waste feed arrangements

F23G 2205/10 ・using ram or pusher

F23G 2205/101 ・・sequentially operated

F23G 2205/12 ・using conveyors

F23G 2205/121 ・・Screw conveyor

F23G 2205/122 ・・Belt conveyor

F23G 2205/123 ・・Roller conveyor

F23G 2205/124 ・・Chain conveyor

F23G 2205/125 ・・Vibrating conveyor

F23G 2205/14 ・using hopper or bin

F23G 2205/16 ・using chute

F23G 2205/18 ・using airlock systems

F23G 2205/20 ・using airblast or pneumatic feeding

F23G 2206/00 Waste heat recuperation

F23G 2206/10 ・reintroducing the heat in the same process, e.g. for predrying

F23G 2206/20 ・using the heat in association with another installation

F23G 2206/201 ・・with an industrial furnace

F23G 2206/202 ・・with an internal combustion engine

F23G 2206/203 ・・with a power/heat generating installation

F23G 2207/00 Control

F23G 2207/10 ・Arrangement of sensing devices

F23G 2207/101 ・・for temperature

F23G 2207/1015 ・・・Heat pattern monitoring of flames

F23G 2207/102 ・・for pressure

F23G 2207/103 ・・for oxygen

F23G 2207/104 ・・for CO or CO2

F23G 2207/105 ・・for NOx

F23G 2207/106 ・・for SOx

F23G 2207/107 ・・for halogen concentration

F23G 2207/108 ・・for hydrocarbon concentration

F23G 2207/112 ・・for waste supply flowrate

F23G 2207/113 ・・for oxidant supply flowrate

F23G 2207/114 ・・for combustion bed level

F23G 2207/20 ・Waste supply

F23G 2207/30 ・Oxidant supply

F23G 2207/40 ・Supplementary heat supply

F23G 2207/50 ・Cooling fluid supply

F23G 2207/60 ・Additives supply

F23G 2208/00 Safety aspects

F23G 2208/10 ・Preventing or abating fire or explosion, e.g. by purging

F23G 2209/00 Specific waste

F23G 2209/10 ・Liquid waste

F23G 2209/101 ・・Waste liquor

F23G 2209/102 ・・Waste oil

F23G 2209/103 ・・Bagasse, megasse

F23G 2209/12 ・Sludge, slurries or mixtures of liquids

F23G 2209/14 ・Gaseous waste or fumes

F23G 2209/141 ・・Explosive gases

F23G 2209/142 ・・Halogen gases, e.g. silane

F23G 2209/16 ・Warfare materials, e.g. ammunition

F23G 2209/18 ・Radioactive materials

F23G 2209/20 ・Medical materials

F23G 2209/22 ・Waste papers

F23G 2209/24 ・Contaminated soil; foundry sand

F23G 2209/26 ・Biowaste

F23G 2209/261 ・・Woodwaste

F23G 2209/262 ・・Agricultural waste

F23G 2209/28 ・Plastics or rubber like materials

F23G 2209/281 ・・Tyres

F23G 2209/30 ・Solid combustion residus, e.g. bottom or flyash

F23G 2900/00 Special features of, or arrangements for incinerators

F23G 2900/00001 ・Exhaust gas recirculation (using the heat thereof F23G 2206/10)

F23G 2900/50001 ・Combination of two or more furnaces

F23G 2900/50002 ・Burning with downwards directed draft through the waste mass

F23G 2900/50003 ・Waste oxidation, pyrolysis or gasification in water under supercritical conditions

F23G 2900/50004 ・Furnace with inclined hearth

F23G 2900/50005 ・Waste in combustion chamber supported on bed made of special materials

F23G 2900/50006 ・Combustion chamber walls reflecting radiant energy within the chamber

F23G 2900/50007 ・Co-combustion of two or more kinds of waste, separately fed into the furnace

F23G 2900/50008 ・Combustion of waste suspended or lifted by upward gas flows

F23G 2900/50009 ・Furnace with progressive waste movements in vertical or steeply inclined direction

F23G 2900/50201 ・Waste pyrolysis, gasification or cracking by indirect heat transfer

F23G 2900/50202 ・Waste pyrolysis, gasification or cracking in presence of catalysts

F23G 2900/50203 ・Waste pyrolysis, gasification or cracking in a mechanically fluidised bed, e.g. obtained by a centrifugal force

F23G 2900/50204 ・Waste pre-treatment by pyrolysis, gasification or cracking

F23G 2900/50205 ・Waste pre-treatment by pyrolysis, gasification or cracking followed by condensation of gas into combustible oil or fat

F23G 2900/50206 ・Pelletising waste before combustion

F23G 2900/50207 ・Thermoforming of plastic waste materials before combustion

F23G 2900/50208 ・Biologic treatment before burning, e.g. biogas generation

F23G 2900/50209 ・Compacting waste before burning

F23G 2900/50211 ・Evaporating, e.g. liquid waste before burning

F23G 2900/50212 ・Extruding waste before combustion

F23G 2900/50213 ・Preheating processes other than drying or pyrolysis

F23G 2900/50214 ・Separating non combustible matters

F23G 2900/50401 ・Drying waste by mixing with drying chemicals, e.g. with CaO

F23G 2900/508 ・Providing additional energy for combustion, e.g. by using supplementary heating

F23G 2900/50801 ・using the heat from externally heated bodies, e.g. steel balls

F23G 2900/50802 ・・using solid propellant

F23G 2900/50803 ・・using solar energy

F23G 2900/50804 ・・using thermit or other compositions of metal oxides as auxiliary fuel

F23G 2900/51001 ・・using arc discharge electrodes to provide heat

F23G 2900/52001 ・Rotary drums with co-current flows of waste and gas

F23G 2900/52002 ・Rotary drum furnaces with counter-current flows of waste and gas

F23G 2900/52003 ・Rotary drum furnaces with foramenous drum walls, e.g. grate drums

F23G 2900/53801 ・Multi-hearth furnaces with vertical axis

F23G 2900/54001 ・Hearths or supports movable into and from the furnace, e.g. by a conveyor

F23G 2900/54401 ・Feeding waste in containers, bags or barrels

F23G 2900/54402 ・Injecting fluid waste into incinerator

F23G 2900/54601 ・using waste heat for desalinating sea water

F23G 2900/55 ・Controlling; Monitoring or measuring

F23G 2900/55001 ・・Controlling combustion air preheating

F23G 2900/55002 ・・Sensing exhaust gas opacity

F23G 2900/55003 ・・Sensing for exhaust gas properties, e.g. O2 content

F23G 2900/55004 ・・Sensing exhaust gas radioactivity

F23G 2900/55005 ・・Sensing ash or slag properties

F23G 2900/55006 ・・Measuring material flow rates

F23G 2900/55007 ・・Sensors arranged in waste loading zone, e.g. feed hopper level

F23G 2900/55008 ・・Measuring produced steam flow rate

F23G 2900/55009 ・・Controlling stoker grate speed or vibrations for waste movement

F23G 2900/55011 ・・Detecting the properties of waste to be incinerated, e.g. heating value, density

F23G 2900/70 ・Incinerating particular products or waste

F23G 2900/70001 ・・Air bags or seat belt pre-tensioners

F23G 2900/70002 ・・Animal fat, e.g. lard, tallow, stearin

F23G 2900/70003 ・・Incinerating litter from animals, e.g. poultry litter

F23G 2900/70004 ・・Incinerating contaminated animal meals

F23G 2900/70005 ・・Incinerating used asbestos

F23G 2900/70006 ・・Incinerating used automobiles

F23G 2900/70007 ・・Incinerating or pyrolysing used batteries

F23G 2900/70008 ・・Incinerating remains of building materials after demolishing, e.g. fibreglass asphalt shingles

F23G 2900/70009 ・・Incinerating human or animal corpses or remains

F23G 2900/7001 ・・Air bags or seat belt pre-tensioners

F23G 2900/70011 ・・Incinerating PCB-materials

F23G 2900/70012 ・・Incinerating rice or grain husks, hulls or bran

F23G 2900/70013 ・・Incinerating oil shales

F23G 2900/7002 ・・Animal fat, e.g. lard, tallow, stearin

F23G 2900/7003 ・・Incinerating litter from animals, e.g. poultry litter

F23G 2900/7004 ・・Incinerating contaminated animal meals

F23G 2900/7005 ・・Incinerating used asbestos

F23G 2900/7006 ・・Incinerating used automobiles

F23G 2900/7007 ・・Incinerating or pyrolysing used batteries

F23G 2900/7008 ・・Incinerating remains of building materials after demolishing, e.g. fibreglass asphalt shingles

F23G 2900/7009 ・・Incinerating human or animal corpses or remains

F23G 2900/7011 ・・Incinerating PCB-materials

F23G 2900/7012 ・・Incinerating rice or grain husks, hulls or bran

F23G 2900/7013 ・・Incinerating oil shales

F23G 2900/70401 ・・Incinerating drainage water from waste pits of incinerators

F23G 2900/70601 ・Temporary storage means, e.g. buffers for accumulating fumes or gases, between treatment stages

--- Edited by Muguruma Professional Engineer Office(C), 2013 ---