Application-Aid grinding agent in the process Superfine Grinding of mica
The effects of the use of the correctional officer in the process of superfine grinding of mica are introduced. The study showed that the absorption of grinding using mica powder, have helped to reduce the viscosity of the pulp and increased the dispersivity of the powders in the milling process. Experience has shown that the application of the grinding aid agent grinding can improve the grinding efficiency and reduce energy consumption.
Mica introduction
Mica is a type of non-metallic mineral materials important in the industry have a wide range of uses. It is an alkali metal and a metal hydrated aluminum silicate clay, mica is layered silicates can have a good split, and the cleavage plane is divided into very thin strips of metal. Mica powder Mica excellent features, there are good performances slip, high overall adherence, etc.
Mica regardless of crushing and to what extent is uneven, with an elasticity, good toughness. Ultrafine mica powder are high quality paints, coatings, cosmetics filling ideal. Mica powder is fine, its diameter is greater ratio of the thickness, as the filler material can improve the loudest.
As we all know that the energy consumption of the upgrader efficiency the most overwhelming, the operation of the unit at the lowest range of energy superfine grinding, high, performance is lower. Therefore, how to improve the grinding efficiency, to improve the means of grinding, in addition, the author in the process of grinding using grinding aids, can achieve good results, the practical importance.
Request for assistance from the correctional officer
With more research mechanical grinding, more people are mechanical grinding is not just a mechanical process, and is one of the mechanical and chemical material in the grinding process, the crystal structure, physical and chemical properties have undergone a series changes. Research shows that in the process of rectifying the addition of certain chemicals, can significantly improve the conditions of grinding, to improve the efficiency of grinding. This agent will be fully illustrated in the superfine grinding plant in an important position.
From the above studies can be seen, the correctional officers on the superfine grinding process is very significant effect. For the mechanism of the effect of grinding aid, mainly Repin Levon and adsorption Western proposal fell hard "and Kerrey Parr" mush rheology control "the two theories, this study combined six sodium phosphate sodium polyphosphate part ultrafine grinding process on the effects of mica crushing, different angles, talks about her grinding mechanism.
Size reduction principle support workers who work and operating rules
1. grinding agent six partial sodium phosphate, sodium polyphosphate ultrafine grinding of mica was obvious crushing, grinding agent of a certain amount, when the amount is too little or too much can reduce the effect of grinding. Six partial doses of sodium phosphate, sodium polyphosphate maximum 2 kg / t, and the optimal dosage of sodium polyphosphate 1.5 kg / T (C = 60%), the effects of the correction of the six partial sodium phosphate.
2. grinding single agent when the concentration reaches a certain value, to reflect the obvious function of grinding, the optimal concentration of C = 60%.
3. six partial sodium phosphate, the function of sodium polyphosphate grinding the paste viscosity to reduce principal to improve the rheology of the mud and improve the efficiency of crushing, grinding agent adsorbed on the surface of mica, mica greater potential negative electricity, which increases the electrostatic repulsion between the particles, allowing a stable dispersion of particles, improving the efficiency of grinding.