Enhancing power boiler performance through the replacement of Valmet Vortex Finders
Feb 11, 2025
PT. Riau Prima Energi at Kerinci Mill, Indonesia, had been operating the Vortex Finders in Power Boiler 3 for over eighteen years without replacement. To prevent further mechanical and operational issues, the customer decided to replace all three units.
Thank the Valmet Design Team for the dimensional accuracy and the improvement made over the old design. Valmet’s service facilitation was highly commendable, making the site installation systematic and enabling scheduled completion in time as desired by the Kerinci Mill Management,"
Mr. Kumarasamy Sundar,
Maintenance Manager, PT. Riau Prima Energi, Kerinci mill, Indonesia
Power Boiler 3 is one of the best, reliable and durable CFB boilers built by Valmet way back in 2005. The boiler was commissioned in 2006. It is a design marvel with proven reliability for coal and bio-fuel firing supporting power generation. The new Valmet Vortex Finders installed this year (2024) is an improved design with the introduction of a box beam to ensure stability and durability for long-guaranteed running,"
| Location |
PT. Riau Prima Energi, Kerinci mill, Indonesia |
| Customer target |
To prevent mechanical and operational issues after over eighteen years of continuous use in Power Boiler 3. |
| Solution |
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| Results |
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| Solution Description |
The Vortex Finder in a circulating fluidized bed (CFB) boiler separates particles/material and fly ash. The particles material (fuels, sand, coarse material) circulate back to furnace, while the fly ash goes to the stack. The Vortex Finder is a key component of the cyclone separator in a CFB boiler.
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Technical data
| Machine line: | PB-3 |
| Type: | CFB boiler |
| Start-up year: | 2006 |
| Capacity: | 520 MWth |
| Steam: | 181 kg/s, 142 bar, 540°C |
| Fuels: | Coal, Bark, Sludge, Brown Fiber |
