Application-Aid polishing agent in the process of superfine grinding of mica
The effects of using the corrections officer in the process of superfine grinding of mica are introduced. The study showed that the absorption-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 metal strips. Mica Mica powder her 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 the most crushing efficiency, the unit operating at the lowest range of superfine grinding, energy consumption is high, the efficiency is lower. Therefore, how to improve the grinding efficiency, to improve the grinding means, in addition, the author in the process of grinding using grinding aids, can achieve good results, practical importance.
Request for correction officer's Aid
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 of 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 fully illustrated in the superfine grinding mill 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 Western proposal 'adsorption decreased hardness "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 his grinding mechanism.
Grinding principle of support worker working 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 grinding 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 mud rheology and improve the efficiency of crushing, grinding agent adsorbed on the surface of mica, mica largest electricity negative potential, which increases the electrostatic repulsion between the particles, allowing a stable dispersion of particles, improving the efficiency of grinding.