1. Crushing Purposes
During cement production procedure, we need to crush the raw material, fuel material and clinker to facilitate following convenient transportation and conservation, creating a good systematic procedure for good working condition. As a consequence, during the construction of cement plant, material crushing process, as the staring procedure, enough attentions should be paid.
2. The Possibility of Raw Material Crushing
The raw material for cement production is mixed with material like limestone, silicon materials as well as other shaping material, according to a certain percentage.
Raw material has various of kinds, and their formation are also very complicated, hence, it is imperative for crushing system selection. The main factors that may influence the crushing properties are demonstrated below:
(1) Material Moisture Content: The moisture content is relative to rock structure (granularity structure, crystal structure, poriness and water supplement condition.
(2) The hardness of the material: The hardness of the material refers to the force that one object can withstand from the invasion of outer force, which is usually measured by Morse.
(3) Material Compressive Strength: Compressive strength is the benchmark of measuring the force that one objects can withstand. The compressive strength is termed as the limitation crushing ratio.
(4) Crushing Possibility: Rocks compose of different sorts of solid mineral. By utilizing different methods of force exertion, the crushing effect will also be different. So in engineering projects there have many crushing method, like impact crusher, chopping crusher and grinding crusher.
(5) Abradability: The abradability of the rock is related to its mohs hardness, the higher the hardness, the large the abradability, when rocks containing hard minerals (e.g. quartz) its abradability is also increased. Abradability is also related to the grain size of hard minerals, the abradability of coarse grain sandstone is larger than that of fine grain sandstone.