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How to set the operating speed of the laboratory high-shear homogenizing emulsifier


Release time:

2019-05-20

It is very important to reasonably set the operating speed of the laboratory high-shear homogeneous emulsifying machine, which is related to whether the emulsifying and shearing effect is ideal and whether the set target can be achieved. The following is how to set the operating speed of the laboratory high-shear homogeneous emulsifying machine. Laboratory homogeneous emulsifying machine in the mixing system of industrial equipment according to the main effect, especially in the solid-liquid inclusion, liquid-liquid inclusion, oil-water emulsification, lax homogenization, shear grinding has an extremely important use. The reason why it is called a homogeneous emulsifying machine is that it can complete the emulsification effect. 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,

It is very important to reasonably set the operating speed of the laboratory high-shear homogeneous emulsifying machine, which is related to whether the emulsifying and shearing effect is ideal and whether the set target can be achieved. The following is how to set the operating speed of the laboratory high-shear homogeneous emulsifying machine.
Laboratory homogeneous emulsifying machine in the mixing system of industrial equipment according to the main effect, especially in the solid-liquid inclusion, liquid-liquid inclusion, oil-water emulsification, lax homogenization, shear grinding has an extremely important use. The reason why it is called a homogeneous emulsifying machine is that it can complete the emulsification effect. After the oil-water two-phase medium is thoroughly mixed, the emulsion is formed, which is divided into two systems: water-in-oil or oil-in-water. To complete the emulsification, there are at least two requirements: first, the intense mechanical cutting slack effect, the fluid medium of the water phase and the oil phase is cut and scattered into small particles, and then when they are gathered and merged, they are soaked and mixed with each other to form the emulsion. The second is a suitable emulsifier, which serves as a bridge between oil and water molecules. Through the effect of its charge and intermolecular force, the oil-water mixed emulsion can be stored according to the time we need.
At present, the use of homogeneous emulsifying machine is not only limited to "emulsification", because of its common shearing effect, the crushing and destroying impact of powder particles in liquid is finally refined to the imaginary particle size, and then the solid mass is fully mixed into the liquid and forms a relatively unchanged suspension. Of course, as with emulsifiers, the invariance of the suspension can be enhanced by the addition of a laxative agent. When a solid substance can be completely ablated by the liquid after inevitable contact with the liquid, then the small particles formed by shear impact will be ablated by the liquid more quickly, because it is many times larger than the outer surface area.
Laboratory High Shear Homogenizing Emulsion Machine
When people get used to obtaining fine particles through a high-pressure homogenizer, refinement is equated with homogenization, so the effect of homogenization emulsifier on material refinement and abundant mixing is also the process of homogenization. Therefore, we can also call the homogeneous emulsifying machine a homogenizer. For ease of distinction, it can be called a high-speed or high-shear homogenizer, so that there are many names for the homogeneous emulsifying machine: vacuum homogenizer, high-shear homogenizer, high-shear homogenizer, high-shear homogenizer, aseptic homogenizer, high-shear homogenizer, vacuum homogenizer, pipeline homogenizer, etc.
The strength of the shearing effect of the homogenizing emulsifier directly affects the final fineness. Through analysis, it is mainly related to the sharp level of the blade, hardness, rotation stator gap, relative movement speed of the two cutting edges and the particle size allowed to pass. Under ordinary conditions, the sharp level of the blade, hardness, rotation stator gap and the particle size allowed to pass have been finalized or not to be changed, then the relative activity speed of the knife edge of the homogeneous emulsifying machine is the most influential factor, which is shown as the circumferential linear speed of the rotor. If the linear speed is high, the density of cutting or impact of the radial active fluid is high, so the refinement effect of the homogeneous emulsifying machine is strong, and vice versa.
It can be seen from this that the rotating speed of the laboratory high-shear homogeneous emulsifying machine is not as high as possible. When the rotating speed reaches a very high value, it tends to obstruct the activity, the liquid quality becomes very small, and the fever is very high, and some materials are gathered in turn, and the result is not ideal. From another point of view, the implementation of chamber experiment is characterized by a small amount, so the physical size of the rotating stator of the homogeneous emulsifying machine should conform to the corresponding few words, the diameter must be small, in order to compensate for the negative impact of the small diameter on the linear velocity, the angular velocity of the rotor must be improved, thus constituting the "high speed" of the instrument.