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US 10,119,700 B2Granted
Arrangement and method in soda recovery boiler
AssigneeValmet Technologies Oy
InventorsJussi Nyman, Kari Haaga, Taisto Rajala
Life of this patent
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Abstract
An arrangement and a method in a soda recovery boiler. The soda recovery boiler comprises a second pass which is provided with at least one superheater and a second pass ash hopper, a front and/or rear wall of the ash hopper being connected to steam circulation of the soda recovery boiler.
Claims19
A soda recovery boiler comprising:
- a second pass, the second pass being provided with at least one superheater;
- a second pass ash hopper, at least one of a front or a rear wall of the ash hopper being connected to steam circulation of the soda recovery boiler;
- and
- a drum connected to at least one of the front or the rear wall of the ash hopper and configured for feeding steam for the steam circulation of the soda recovery boiler.
1 more element
A method in a soda recovery boiler, the method comprising the steps of:
- providing a soda recovery boiler comprising:
- a second pass;
- at least one superheater positioned in the second pass;
- a second pass ash hopper having a front and a rear wall;
- and
- a drum connected to at least one of the front or the rear wall of the ash hopper and configured for feeding steam;
- and
- cooling the second pass by conveying steam, via the drum, to at least one of the front or the rear wall of the second pass ash hopper.
5 more elements
A soda recovery boiler comprising:
- a second pass, the second pass being provided with at least one superheater;
- a second pass ash hopper, at least a front wall of the ash hopper being connected to steam circulation of the soda recovery boiler;
- and
- a drum connected to at least the front wall of the ash hopper and configured for feeding steam for the steam circulation of the soda recovery boiler.
1 more element
Dependencies are inferred from the claim text.