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US 11,274,824 B2Granted
Furnace floor protection in recovery boilers
AssigneeVaro Teollisuuspalvelut Oy
InventorTimo Karjunen
Life of this patent
Estimating the term…
Abstract
A method and apparatus for protecting a furnace floor of a black liquor recovery boiler, where a mixture is formed by mixing material with a fluid, and the furnace floor is covered by said mixture by flowing the formed mixture onto the floor from the outside of the furnace.
Claims13
A method for protecting a furnace floor of a furnace of a black liquor recovery boiler, comprising:
- mixing protective material with a fluid to form a mixture comprising said protective material;
- covering the furnace floor by said mixture by allowing the mixture to stay on the furnace floor or by flowing the mixture onto the furnace floor;
- and
- forming a salt lake onto the furnace floor extending over the furnace floor from side to side during an outage of the black liquor recovery boiler.
1 more element
A method for protecting a furnace floor of a black liquor recovery boiler, comprising:
- mixing protective material with a fluid to form a mixture comprising said protective material;
- covering the furnace floor by said mixture by allowing the mixture to stay on the furnace floor or by flowing the mixture onto the furnace floor;
- and
- performing the act of covering the furnace floor with said mixture simultaneously with a removal of a furnace safety roof during an outage of the black liquor recovery boiler.
1 more element
A method for protecting a furnace floor of a black liquor recovery boiler, comprising:
- mixing protective material with a fluid to form a mixture comprising said protective material;
- covering the furnace floor by said mixture by allowing the mixture to stay on the furnace floor or by flowing the mixture onto the furnace floor;
- and
- mixing the protective material on the furnace floor with a fluid or water by a mixing device or by a plurality of mixing devices.
1 more element
Dependencies are inferred from the claim text.