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The influence of the strength of the shear action of the lifting vacuum emulsifier.

Release time:

2019-05-14

Lifting vacuum emulsifiers play an important role in the mixing system of industrial equipment, especially in solid-liquid mixing, liquid-liquid mixing, oil-water emulsification, dispersion and homogenization, shear grinding. The reason why it is called an emulsifying machine is to be able to achieve the role of emulsification. The oil-water two-phase medium is thoroughly mixed to form an emulsion, which is divided into two systems: water-in-oil or oil-in-water. To realize emulsification, there are at least two requirements: first, strong mechanical cutting and dispersion, cutting and scattering the fluid medium of the water phase and the oil phase into small particles at the same time, and then when they are gathered and merged, they are permeated and mixed with each other to form an emulsion. Two is appropriate.

Lifting vacuum emulsifiers play an important role in the mixing system of industrial equipment, especially in solid-liquid mixing, liquid-liquid mixing, oil-water emulsification, dispersion and homogenization, shear grinding. The reason why it is called an emulsifying machine is to be able to achieve the role of emulsification.
The oil-water two-phase medium is thoroughly mixed to form an emulsion, which is divided into two systems: water-in-oil or oil-in-water. To realize emulsification, there are at least two requirements: first, strong mechanical cutting and dispersion, cutting and scattering the fluid medium of the water phase and the oil phase into small particles at the same time, and then when they are gathered and merged, they are permeated and mixed with each other to form an emulsion. The second is a suitable emulsifier, which acts as a medium bridge between oil and water molecules. Through its charge and intermolecular force, the oil-water mixed emulsion can be stored stably according to the time we need.
The strength of the shearing action of the lifting vacuum emulsifying machine directly affects the final fineness. After analysis, it is mainly related to the sharpness of the blade, hardness, rotation stator clearance, relative movement speed of the two cutting edges and the particle size allowed to pass. Normally, the sharpness of the blade, hardness, rotation stator clearance and the particle size allowed to pass are basically fixed or do not want to change, then, the relative movement speed of the knife edge is the most influential factor, which is manifested as the circumferential linear speed of the rotor (because the stator is immobile). If the linear speed is high, the density of cutting or impact on the radial flow of fluid is high, thus The refinement effect is strong, and vice versa.
However, the linear velocity is not as high as possible. When reaching a very high value, there is a tendency to block the flow (just as a samurai with high ability can turn a sword to resist an arrow), thus the flow rate becomes very small and the heat generation is very high. If the equipment itself does not have a cooling device, some materials will gather in turn, making the result unsatisfactory.
 

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