A coal mill for the injection of pulverized coal

In November 2011 Loesche GmbH obtained a contract for the first ever 4-roller coal mill for the injection of pulverized coal into a blast furnace (PCI technology). The Loesche Mill Type LM 43.4 D has a capacity of 120 t/h and will be installed in the iron and steel plant of SSI Redcar in Great Britain. This will be, together with the Loesche Hot Gas Generator Type LOMA LF 28 with a maximum heat capacity of 17 MW, the world’s largest single coal grinding plant for PCI. A step forward in the development of the multiple lance burner (MLB) allows for operation of the hot gas generator with blast furnace gas as well as with coke oven gas also at maximum throughput of the mill. The complete injection system will be implemented by Siemens VAI and is planned to start operation at the beginning of 2013.

 

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