US 12,442,529 B2
Circulating fluidized bed boiler
Slawomir Sluszniak, Gliwice (PL); Roger Glowicki, Oswitecim (PL); Krzysztof Wyka, Nieborowice (PL); Slawomir Solipiwko, Czekanka (PL); and Bartlomiej Ferdyn, Piekary Slaskie (PL)
Assigned to Sumitomo SHI FW Energia Oy, Espoo (FI)
Appl. No. 18/252,068
Filed by SUMITOMO SHI FW ENERGIA OY, Espoo (FI)
PCT Filed Dec. 7, 2021, PCT No. PCT/EP2021/084499
§ 371(c)(1), (2) Date May 8, 2023,
PCT Pub. No. WO2022/122694, PCT Pub. Date Jun. 16, 2022.
Claims priority of application No. 20206271 (FI), filed on Dec. 9, 2020.
Prior Publication US 2023/0400179 A1, Dec. 14, 2023
Int. Cl. F23C 10/10 (2006.01); F22B 1/00 (2006.01)
CPC F23C 10/10 (2013.01) 16 Claims
OG exemplary drawing
 
1. A circulating fluidized bed boiler comprising:
a vertically extending furnace;
a separator unit;
a cross over duct; and
an exhaust gas channel connected to the separator unit via the cross over duct, the exhaust gas channel comprising a first vertically extending pass and a horizontally extending pass and a second vertically extending pass, wherein the first vertically extending pass and the horizontally extending pass and the second vertically extending pass are arranged successively in the gas flow direction such that the horizontally extending pass is configured to connect the first vertically extending pass and the second vertically extending pass with each other, and wherein the horizontally extending pass is arranged below the separator unit which is arranged between the first vertically extending pass and the second vertically extending pass.