What iron ore does the cement plant use?
Cement is usually made of ordinary portland cement, Portland cement mixed with mixed material and special cement. Portland cement mixing material is added according to the proportion of ordinary portland cement and some other materials processing procedures to achieve special effects, such as slag cement, Portland cement, volcano ash fly ash Portland cement, Portland cement and so on. The raw material of the cement is more active than that of the ordinary Portland cement. Special cement is somewhat different in the material stage and the manufacturing process. For example, the high alumina cement (aluminate cement) is made of bauxite and limestone, which is calcined to produce clinker, which is then pulverized into aluminate cement.
Cement is made up of limestone, clay and iron ore in proportion, and the mixture is called raw meal. Then calcined, the general temperature of about 1450 degrees, calcined products called clinker. The clinker is then ground with gypsum and mixed in proportion to cement. The cement at this time is called ordinary Portland cement.
Cement used in the production of iron ore powder, mainly containing ferric oxide, in the raw material ratio control in 2 ~ 6%, its main function is to generate C3S and C2S by calcination. The general is hematite, Fe2O3 content inside the relatively high. Iron slag is only less than components of ferric oxide, magnetite, can also use the iron slag, but not commonly used!
The most common two kinds of iron ore used in general cement plants, the first type: used for rotary kiln. Second: the use of iron ore is the production of high-quality cement clinker one of the components. With what kind of iron ore, it is necessary according to specific circumstances to cooperate costs!
