Portugal: Cimpor Portugal has signed a contract with Germany-based KHD Humboldt Wedag (KHD) for an upgrade to production line 7 at its Alhandra cement plant. The project is intended to increase the production capacity at the plant to 3600t/day from 3000t/day and increase the line’s alternative fuels thermal substitution rate to over 80%. It will also be the first installation of KHD’s Pyrorotor alternative fuel combustion reactor in the country.
The scope of the engineering and supply contract comprises:
- New HKSK 224/335 preheater ID fan
- New downcomer duct
- New preheater with 8064/5-type HEM cyclones
- Pyroclon R calciner with Pyrotop mixing chamber. The Pyroclon R will utilize fine refuse-derived fuel (RDF) and natural gas
- 4m x 10m Pyrorotor alternative fuel combustion reactor
- Pyrobox coal firing system for process start-up and operation balancing
- Shortening of the existing kiln and installation of new kiln inlet chamber with bypass extraction
- New kiln drive station 2 (the existing girth gear and two pinions will be reused)
- New kiln hood and take-off of tertiary air from the cooler roof
- New main kiln burner designed to use more than 50% alternative fuels (but will also be capable of burning natural gas, as well as liquid fossil and alternative fuels)
- New Pyrofloor PFC²829AW cooler with a Pyrocrusher PRC 420-3ES clinker crusher.
KHD will also be supplying its KHD ProMax software product as part of the project.
Matthias Mersmann, chief technology officer at KHD, said “The decision by Cimpor Portugal to opt for KHD pyroprocessing equipment - and especially the Pyrorotor - underlines the leading market position of KHD, as well as the outstanding capability of KHD’s unique alternative fuel-processing solution.”
Project execution will be led by KHD Germany, with support from Humboldt Wedag India and the Turkish branch office of Humboldt Wedag. Commissioning of the upgraded production line is scheduled for 2025.