Flexible plant concept boosts mineral deposit yield and assures quality
When encountering difficult mineral deposit conditions, comprehensive raw material studies and a plant design to suit the material’s characteristics really pay off. The investment and operating costs for the main equipment for manufacturing cement can be minimized in this way. Preliminary scalping before the primary crusher for controlling the quality is taken into consideration when fine grain content is qualitively distinguishable. A separate homogenization and material return to the main process allows the mineral deposit to be fully exploited. At the same time it allows overlapping quality and quantity fluctuations to be effectively balanced out.
1. Introduction
HeidelbergCement extracts worldwide approximately half a billion t of raw material annually for the production of building materials. Of this approximately 120 million t are used for the production of raw crushed stone for cement production. The starting materials such as chalk, limestone, clay, various types of karstified limestone, shell limestone, coral limestone and others originate from a variety of natural deposits. In addition there are also a wide variety of clays or other chemically similar minerals and diverse corrective components. Clearly there is a need to use...
