Emulsifiers play an important role in industrial equipment mixing systems, especially in solid-liquid mixing, liquid-liquid mixing, oil-water emulsification, dispersion homogenization, and shear grinding. The reason why it is called an emulsifier is that it can achieve emulsification.
Nowadays, the application of the emulsifier is not limited to "emulsification". Due to its unique shearing action, the pulverizing impact of the granules in the liquid is finally refined to the desired particle size, so that the solid matter is fully blended into the liquid. And a relatively stable suspension is formed, which is also called "dispersion". Of course, as with the emulsifier, the stability of the suspension can be enhanced by the addition of a dispersing agent. When a solid substance is completely dissolved by the liquid by contact with the liquid for a certain period of time, the small particles formed by the shearing impact will be dissolved by the liquid more quickly because the specific surface area is increased by many times.
When people get used to obtaining fine particles through a high-pressure homogenizer, “fine†is equal to “homogeneousâ€, so the effect of the emulsifier on the refinement and thorough blending of the material is “homogeneousâ€. The process is gone. Therefore, we can also refer to the emulsifier as a homogenizer. For easy differentiation, it can generally be crowned with high-speed or high-shear homogenizers, so that there are many kinds of emulsification machines: high shear emulsifier, high shear Cutting homogenizer, high shear dispersing emulsifier, high shear homogenizing emulsifier, high shear homogenizing and dispersing emulsifier.
The strength of the shearing action of the emulsifier directly affects the final fineness. After analysis, it is mainly related to the sharpness of the blade, the hardness, the stator gap, the relative movement speed of the two cutting edges and the allowable particle size. Under the knife edge sharpness, hardness, stator gap and allowable particle size have been basically fixed or do not want to change, then the relative movement speed of the knife edge is the most influential factor, which is expressed as the circumferential speed of the rotor, which is high. The density of the cutting or impacting of the radially flowing fluid is high, so the refining effect is strong, and vice versa. However, the line speed is not as large as possible. When it reaches a very high value, there is a tendency to form a barrier flow, so that the flow rate becomes small, and the heat is high, and some materials are in turn aggregated, so that the result is not satisfactory.
So is the stirring speed we usually say is the shear speed? Those who have studied high school physics know that the speed is divided into angular velocity and linear velocity. The shear velocity is of course the linear velocity, linear velocity = angular velocity × diameter × π, so why the speed of the emulsifier used in industrial production is generally only 3000 rpm or 1500 rpm. The speed of the laboratory emulsifier is 10000 rpm or 280 rpm, which takes into account the diameter factor, so that the shear line speed of the two is close, and the final effect is close.
From another point of view, the laboratory is characterized by a small amount of testing. Therefore, the physical size of the rotating stator should be adapted to a small amount, and the diameter must be small. In order to compensate for the negative impact of the small diameter on the line speed, it is necessary to improve. The angular velocity of the rotation, thus forming the "high speed" of the experimental instrument. It can be seen from the above that the speed of the emulsifier is to be considered in conjunction with the actual processing capacity, but it is at the current processing level and production economy. The 8.5 rpm speed of the 2 pole motor is often used below 18.5 KW, and the 22 KW to 55 KW is usually The 1500 rpm of the 4-pole motor can exceed 1000 rpm of the 6-pole motor over 75 kW. The purchase of emulsifier should try to choose products with reputation and rich experience. For example, Nanjing Shunliu emulsifier has reliable quality, fine workmanship, guaranteed material, and the key components are designed with wear resistance and confidentiality. Low maintenance costs, long life and good service have a wide range of influence in the industry.
ZENGHUI PAPER PACKAGE is a good Apparel Packaging manufacturers and suppliers with good reputation, we have our own factory, we are able to provide our customers varieties of Hair Extension Boxes with good quality and reasonable price. such as cardboard hair extension boxes,Hair Extension Box with magnets etc.Welcome to wholesale products from us.
Hair Extension Box
Hair Extension Box,Hair Extension Packaging,Hair Extension Boxes,Hair Extension Packaging Box
Zenghui Paper Package Industry and Trading Company , https://www.zhpaperpackage.com