| F | SK | SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
| F23 | KL | COMBUSTION APPARATUS; COMBUSTION PROCESSES |
| F23J | UKL | REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES (precipitating dust from flue gases B01D; composition of fuels C10; combustion apparatus for consuming smoke or fumes, e.g. exhaust gases, F23G 7/06) |
| F23J 1/00 | HGR | Removing ash, clinker, or slag from combustion chambers (devices for removal of material from the bed of fluidised bed combustion apparatus F23C 10/24) |
| F23J 1/02 | UGR1 | | . | Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyers, by employing suction devices |
|
| F23J 1/04 | UGR1 | | . | Hand tools, e.g. rakes, prickers, tongs |
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| F23J 1/06 | UGR1 | | . | Mechanically-operated devices, e.g. clinker pushers (forming part of the grate F23H) |
|
| F23J 1/08 | UGR1 | |
| F23J 3/00 | HGR | Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers |
| F23J 3/02 | UGR1 | | . | 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 3/04 | UGR1 | |
| F23J 3/06 | UGR1 | | . | Systems for accumulating residues from different parts of furnace plant |
|
| F23J 7/00 | HGR | Arrangement of devices for supplying chemicals to fire (supplying chemicals to fire C10L) |
| F23J 9/00 | HGR | Preventing premature solidification of molten combustion residues |
| F23J 11/00 | HGR | Devices for conducting smoke or fumes, e.g. flues (heat insulation therefor E04B 1/94; chimneys E04H 12/28; removing cooking fumes from domestic stoves or ranges F24C 15/20) [5] |
| F23J 11/02 | UGR1 | | . | for conducting smoke or fumes originating from various locations to the outside, e.g. in locomotive sheds, in garages |
|
| F23J 11/04 | UGR1 | | . | in locomotives; in road vehicles; in ships |
|
| F23J 11/06 | UGR2 | | . . | for conducting smoke horizontally |
|
| F23J 11/08 | UGR1 | |
| F23J 11/10 | UGR1 | | . | for tents; for log huts; for other inflammable structures |
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| F23J 11/12 | UGR1 | | . | Smoke conduit systems for factories or large buildings |
|
| F23J 13/00 | HGR | 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 | UGR1 | | . | Linings; Jackets; Casings |
|
| F23J 13/04 | UGR1 | | . | Joints; Connections (pipe joints in general F16L) |
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| F23J 13/06 | UGR1 | |
| F23J 13/08 | UGR1 | | . | Doors or covers specially adapted for smoke-boxes, flues, or chimneys (in general E06B) |
|
| F23J 15/00 | HGR | Arrangements of devices for treating smoke or fumes (such devices per se, methods for treating smoke or fumes, see the relevant places for the treatment, e.g. B01D 53/00) |
| F23J 15/02 | UGR1 | | . | of purifiers, e.g. for removing noxious material (traps for solid residues F23J 3/04) [6] |
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| F23J 15/04 | UGR2 | | . . | using washing fluids [6] |
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| F23J 15/06 | UGR1 | |
| F23J 15/08 | UGR1 | |
| F23J 99/00 | HGR | Subject matter not provided for in other groups of this subclass [2006.01] |