CPC Main Group Additional Only
F23J 2900/00 Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
34 direct subcodes
Child Classifications
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- 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
- 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