Industrial waste slag ultrafine grinding is the main method of environment protection in the manufacturing of cement

At present, China's cement industry clinker calcination is in the leading position in the world, not much potential in energy-saving, emission reduction efficiency in the manufacturing of cement. Mining potential is mainly cement grinding due to the high content of clinker in China's cement. Cement lvl52.5 with clinker content of 85% or more, cement lvl42.5 with clinker content of 65%. Large resources consumption, large environmental load makes large mining potential. As we all know, industrial waste used as a cement mixture have 3 uses in the manufacturing of cement: First, the activation effect, the residue of active SiO2, Al2O3 and cement hydration in the precipitation of Ca (OH) 2, ettringite, the excess water from the chemical reaction to generate strong growth of cement strength of the new C-S-H gel and calcium aluminosilicate; second: the role of filler. It is combined with cement hydration products, from the nucleus skeleton role; third: the role of close accumulation. When the waste residue particle size is much smaller than the cement particle size, it can improve the cement density, and then improve the cement strength, improve the ability of cement concrete to resist invasion and improve durability. As the industrial waste residue itself does not have volcanic ash reaction capacity, volcanic ash reaction will only occur in the cement only through the cement hydration of Ca (OH) 2 precipitation. According to the general principle of reaction kinetics, under the same conditions of other conditions, the greater the surface area of the reactants involved in the reaction, the faster the reaction rate, the more complete the reaction; Indicating that the more fine industrial waste was grinding, the higher the activity, the greater the contribution to the strength of cement, the bigger the mixed amount. It can be seen that the ultrafine grinding of industrial waste grinding is one of the effective ways to reduce energy consumption and cost, improve energy efficiency in the manufacturing of cement.

Guilin Hong Cheng ultrafine cement vertical mill in manufacturing of cement

Hong Cheng HLMX vertical mill uses dynamic and static combined classifier, product fineness can be freely adjust between 325 to 2500 mesh (5μm-40μm), the highest capacity can reach up to 730t/h. It can be widely used in ultra-fine grinding process of limestone, calcite, marble, heavy calcium carbonate, kaolin, barite, bentonite, pyrophyllite and other non-metallic mineral products, is an efficient and productive, environmentally friendly energy-saving ultra-fine powder processing equipment.