South Korea: Asia Cement has awarded a contract to Germany’s Humboldt Wedag, a subsidiary of KHD Humboldt Wedag International, to supply and provide engineering for the modernisation of its third clinker production line at its Jecheon plant. The target of the upgrade project is to increase the alternative fuel substitution rate to above 85% of calciner fuel, as well as the reduction of NOx to satisfy local emission limits.

KHD’s scope includes the engineering and supply of mechanical equipment for the clinker production as well as electrical equipment for the overall modernisation of the production process. During the project, the existing preheater will be modernised with the installation of a new Pyroclon R calciner, as well as a Pyrorotor rotary combustion reactor for low-processed alternative fuel.

The overall project scope consists of: a Pyroclon R calciner with Pyrotop mixing chamber; a Pyrorotor alternative fuel combustion reactor; a Pyrobox coal firing system for process start-up and operation balancing; replacement of stage five cyclones with new high-efficiency cyclones for calciner connection and an overall pressure drop reduction; bypass mixing chamber installation; and a new kiln inlet chamber with orifice.

The commissioning of the modernised production line is planned for the first quarter of 2021.