OPTIMUM CHROME-FREE BURNING ZONE LINING FOR ROTARY CEMENT KILNS

Increased outputs from rotary cement kilns and changed methods of burning represent a challenge to the refractories industry. The optimum availability of a rotary kiln plant is crucially dependent on the life of the basic refractory brickwork, and increasing use is being made of chrome-free basic bricks, so the development Of improved, chrome-free magnesia bricks is now assuming great importance. Disposal problems when using bricks containing chrome ore are also making the use of chrome-free types a matter of priority [1]. Since the start of the 80s chrome-free basic bricks have been used increasingly in rotary cement kilns. The report will describe the experience obtained with various types of brick, and reference will also be made to their continued development and possible future applications.