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    • CommentAuthorqzz10011
    • CommentTimeJan 12th 2018

    There are many types of cement, which can be divided into general purpose (ordinary Portland cement, slag Portland cement, etc.) And special purpose cement (Quick hard cement, dams cement, expansive cement, oil well cement etc. Can also be divided into components of Portland cement, aluminate cement, sulphoaluminate cement. Made of cement mortar or concrete, durable, is an important building materials and engineering materials. Widely used in construction, water conservancy, roads, national defense projects.The broken pieces of

    material, under the action of external forces, ground into a fine powder (100 microns) of the process. There are two kinds of dry grinding and wet grinding. Grinding equipment in addition to the commonly used tube mill, ball mill, there are vertical mill, vibration mill, jet mill and so on. In cement production, in order to obtain raw materials of uniform composition and fineness, it is necessary to mix the raw materials of the respective components proportionally for grinding. When the clinker is fired, it is necessary to carry out another grinding to make the cement with a

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