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F-Term-List

4K056 Waste-gas treatment and other accessory devices for furnaces
F27D17/00 -99/00@Z
F27D17/00-99/00＠Z AA AA00
TYPES OF FURNACES ORGANIZED BY PURPOSE 		AA01 AA02 AA05 AA06 AA08 AA09
. Smelting furnaces (e.g., shaft furnaces and cupolas) . Refining furnaces . Dissolution furnaces and fusion-furnaces . Ladles, heat-insulation furnaces, and storage furnaces . Press-rolling furnaces and forging furnaces (e.g., . Heat-treatment furnaces
AA11 AA12 AA14 AA16 AA18 AA19 AA20
. Sintering furnaces and sintering machines . Baking furnaces and fumigation kilns . Hot-blast stoves and drying furnaces . Coke ovens . Hot isostatic pressurization furnaces . Incinerators . Furnaces for cultivation of single crystals
BA BA00
FURNACE-BODY STRUCTURE 		BA01 BA02 BA03 BA04 BA06 BA07
. Solid furnace structures (i.e., excluding AA01) . Horizontal furnaces . Crucible furnaces . Vacuum furnaces . Rotation, tilting, and elevation of the furnace body (e.g., steel converters and the like) . Elevation, swiveling, and moving of furnace covers
BB BB00
METHODS FOR HEATING THE FURNACE INTERIOR 		BB01 BB02 BB03 BB05 BB06 BB07 BB08 BB10
. Combustion heating (e.g., combustion furnaces) . . Indirect heating by radiant tubes . . Indirect heating by muffles or partition walls . Electric heating (e.g., electric furnaces) . . Resistance heating . . Induction heating . . Arc heating . Use of heated media (e.g., water, oil, or chlorinated biphenyl)
BC BC00
METHODS OF CONVEYING ARTICLES TO BE HEATED INTO THE FURNACE INTERIOR 		BC01 BC03 BC04 BC06 BC07 BC08
. Characteristic charging methods . Characteristic conveyance methods inside furnaces . . Walking-beam furnaces . Characteristic discharge methods . . Discharge by reciprocal movement (e.g., rotation of arms) . . Discharge by crushing and impact
CA CA00
HEATED ARTICLES IN FURNACE INTERIORS 		CA01 CA02 CA04 CA06 CA07 CA08 CA09 CA10
. Metals . . Iron and steel . . Non-ferrous metals . Inorganic substances (i.e., excluding CA01) . . Minerals . . . Cement materials (e.g., limestone) . . . Slag, sand, and fireproof articles . . Glass, pottery, roof tiles, and ceramics
CA11 CA12 CA13 CA14 CA15 CA16 CA18 CA20
. Inorganic substances . . Coals (For coal gas, see CA13) . . Mineral oils, synthetic oils, and organic gases . . Plastics and resins . . . Plastics and resins for painting and printing . . Food products . Electric materials and electronic materials . Industrial wastes
F27D17/00-99/00@Z DA DA00
WASTE-HEAT COLLECTION 		DA01 DA02 DA03 DA04 DA05 DA06 DA07 DA08 DA09 DA10
. Waste-heat sources . . Sensible heat and combustion heat from waste gases . . Sensible heat of the heated articles . . . Sensible heat of the hot melt . . . Sensible heat of the hot slag . . . . Mechanically powderized hot slag . . . . Hot slag that has been powderized by fluids . . . Sensible heat of solid heated articles (e.g., steel) . . . . Sensible heat of lumps of heated powdered granules (e.g., cement and sintered steel) . . Sensible heat of the furnace body
DA11 DA12 DA13 DA14 DA15 DA17
. Waste-heat collection devices . . Collection by heat media . . . Waste-heat boilers . . . Vapor-generating devices (e.g., freon) . . . Heat-absorbing pipes and cooling panels . . Unburned waste-gas collection devices (i.e., raw-gas collection devices)
DA22 DA23 DA24 DA25 DA26 DA27 DA29
. . Collection of waste heat by heat exchange . . . Collection of waste heat by fluidized beds and moving beds . . . Collection of waste heat by floating beds and cyclones . . . Collection of waste heat by grading . . . Collection of waste heat by recuperative heat exchangers . . . Collection of waste heat by regenerative heat exchangers . . Heat exchangers with characteristic materials
DA31 DA32 DA33 DA34 DA36 DA38 DA39
. Use of waste heat . . Preheating of combustion air and fuel . . Preheating and drying of articles to be heated . . . Use of devices used exclusively for preheating and drying devices . . Use of the waste heat as a gas in the furnace interior . . Use of the waste heat for driving turbines . . . Driving of turbines that generate electrical power
DB DB00
WASTE-GAS TREATMENTS OTHER THAN THOSE SPECIFIED IN DA AND DC 		DB01 DB02 DB03 DB04 DB05 DB07 DB08 DB09 DB10
. Transformation treatments (Also see DB07) . . Use of catalysts . . Use of heating devices (e.g., afterburners) . . Collection devices for specific components (e.g., argon [Ar] gas) . Cooling treatments (e.g., spraying of water and diluted-air supply) . Non-polluting treatments (Also see DB01) . . Deodorization treatments and treatments to prevent generation of white smoke . . Treatment of low nitric oxides and low sulfuric oxides . . Flare-stack combustion treatments
DB11 DB12 DB13 DB14 DB15 DB17 DB19 DB20
. Dust-collection treatments . . Dust-collection devices . . . Cyclones, bag-houses, and filter devices . . . Wet-dust collectors (e.g., Venturi scrubbers) . . . Devices for collecting electrically-charged dust . . Collection of ash from ash-catching chambers . . Surrounding bodies . . . Soundproof wall structures, sediment-preventing wall structures, and heat-preventing wall structures
DB21 DB22 DB23 DB26 DB27 DB29
. Dust treatments . . Devices that prevent dust accumulation and clogging due to dust . . Dust-discharging devices and dust-transfer devices . . Devices for selection and separation of dust . . . Sedimentation devices for precipitation tanks (e.g., thickeners) . . Dehydration, drying, and granulation devices
DC DC00
WASTE-GAS HOODS, DUCTS, AND ACCESSORY DEVICES 		DC01 DC03 DC05 DC06 DC07 DC08
. Gas absorption during charging and discharging of articles to be heated . Characteristic hoods and skirts . Characteristic suction ducts and gas passages . . Direct suction ducts and elbows . . Movable ducts (e.g., flexible, expanding, rotating or detachable ducts) . . Formation of passages for gases in the articles to be heated
DC11 DC12 DC13 DC15 DC16 DC17
. Sealing devices . . Fluid curtains (e.g., air curtains) . . Liquid sealing devices . Devices of adjustment of the pressure and volume of waste gases . . Waste-gas rectification devices . . Devices for switching and shielding waste-gas conduits
EA EA00
ACCESSORY DEVICES FOR FURNACES (I.E., DEVICES NOT OTHERWISE ASSIGNED) 		EA01 EA02 EA03 EA04 EA06 EA08
. Devices for removal and discharge of unnecessary articles . . Scale-removal devices . . . Conduits for cooled water and removal or discharge by fluid pressure . . . Mechanical discharge after storage in water tanks . . Deposit-removal devices and prevention of plugging of brick surfaces and seal surfaces . Devices for building and demolishing furnaces made of fireproof materials
EA11 EA12 EA13 EA14 EA16
. Agitation devices for fused substances . . Mechanical agitation devices . . Electromagnetic agitation devices . . Gas-blowing agitation devices . . Charging and discharging of fused substances from melt-basins
FA FA00
CONTROL, DETECTION, MONITORING, AND WARNING 		FA01 FA02 FA03 FA04 FA06 FA08 FA10
. Control . . Control of input of heat into the furnace interior . . . Control of combustion heating . . . Control of electric heating . . Waste-heat collection devices . . Waste-gas treatment devices . . Other furnace equipment (i.e., excluding FA02-FA08)
FA11 FA12 FA13 FA15 FA17 FA19
. Characteristic measurement and detection devices . . Temperature-measurement and sampling devices for the articles being heated . . Temperature-measurement devices for articles other than the articles being heated . . Gas-sampling devices . . Devices for detecting the level of the molten surface . . Devices for detecting the thickness and usable life of fireproof articles
FA21 FA22 FA23 FA24 FA25 FA27
. Characteristic observation and monitoring devices . . Observation windows . . Image reception, monitoring, and recording devices for monitoring the status of the furnace interior . . . Movable cameras and sensors (e.g., scanning cameras and sensors) . . Illumination devices . Characteristic safety devices and alarm devices
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