Cement processing reaction plant by sand washer

Cement processing reaction plant by sand washer

The construction of water conservancy, housing, roads, railways and other facilities have been increasing demand for high-quality aggregate. Thanks to strong market demand for sand and gravel production line has become a hot investment. Sand and gravel production line . The is an artificial sand (natural sand) washing equipment.
Cement production points: the first important reaction to occur is the calcining of limestone (calcium carbonate) into lime (calcium oxide) and carbon dioxide, which occurs in the lower-temperature portions of the kiln–up to about 1650°F (900°C). The second reaction is the bonding of calcium oxide and silicates to form dicalcium and tricalcium silicates. Small amounts of tricalcium aluminate and tetracalcium aluminoferrite are also formed. The relative proportions of these four principal compounds determine the key properties of the resultant portland cement and the type classification (Type I, Type II, etc.). These reactions occur at very high temperatures with the ingredients in molten form. As the new compounds cool, they solidify into solid pellet form called clinker. The clinker is then ground to a fine powder, a small amount of gypsum is added, and the finished cement is bagged or shipped bulk to ready mix concrete plants.
Some work points on operation as following: The degree of tightness of the check V-belt crusher, wear, such as tight loose or badly worn, and should promptly adjust or replace the belt. Feeding should be uniform, not allowed to join other material. Keep in mind the material circumstance, if any blockage, should be promptly dredge. Before the shutdown, must be small jaw broken palate material blocks all broken before downtime.
The sand washing machine is widely used in the washing of the material in gravel pits, mining, building materials, transportation, chemical industry, water conservancy and hydropower, concrete mixing stations and other industries. It can remove the cover of the impurities on the surface of sand and gravel, at the same time destroy the vapor layer of the coated sand, in order to facilitate dehydration, played the role of efficient washing of sand cleaning. Concrete is produced by mixing cement with fine aggregate (sand), coarse aggregate (gravel or crushed stone), water, and–often–small amounts of various chemicals called admixtures that control such properties as setting time and plasticity.