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current position:home pageTechnology CenterUnderstanding of grinding and grinding technology

Understanding of grinding and grinding technology

Date:2014-11-25 15:06:04Click on the:
1 mixed
Mixed usually by mechanical means two or more materials dispersion and reach the state of operation. To speed up the heat transfer, mass transfer and chemical reaction (such as nitration, sulfonation, saponification etc.). It is also used to promote the physical changes, making many mixture, such as solution, emulsion, suspension, mixture, etc.. Can be carried out in the mixer etc..
The main phenomena will occur between the mixed process of materials are: impact, crushing, shearing, dissolution, refinement, slurry, emulsion, reaction, polymerization, decomposition, electrolysis and other physical changes and chemical changes, these phenomena in most cases appear at the same time.
In the field of mixed material due to differences in physical and chemical properties, can be a form of existence of gaseous, liquid, solid.
There are numerous in the field of mechanical mixing method, the oldest is manual mixing, along with the increasing progress of science and technology, all kinds of the tools of modern technology has been widely used in mixed field.
2 understanding of stirring, mixing, dispersion
From a technical perspective, the mixing is a mechanical movement, mixing is an agitation process, dispersion is a result of mixing.
Dispersion is based on mass transfer, heat transfer and reaction and the product characteristics as the key target. To reduce heterogeneity system (phase, temperature, concentration) process to achieve the desired results.
3 recognize the dispersing and grinding and polishing technology
In the two-phase system, one of the phases by share very fine particles (usually in the colloidal size range) composition, distributed throughout the material, particle called the dispersed phase or inner phase and large material called continuous phase or foreign minister. In this distribution under natural conditions is usually not uniform, but by means of technology can improve the uniformity after. The two-phase system can exist in the form of a gas / solid (foam); liquid / gas (FOG); gas / liquid (foam); solid / gas (smoke); liquid / liquid (mixture); solid / liquid (paint); and solid / solid (carbon black).
Grinding is to solve technical problems of material particles dispersed in the process of refinement, is a kind of dispersion results in some special industries to achieve the desired, such as solid particles in paint thinning, thinning of various solid particles in cosmetics, a variety of solid particles of cement building materials industry refinement etc..
Is to solve the problem of material particles dispersed in the process of refining set of technical measures and technical means of grinding technology.
 

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