The high-shear emulsifying pump is a crucial equipment in frozen production lines, primarily used for emulsifying and homogenizing materials to achieve the desired product. It has been widely applied in many industries. There are two installation forms of high-shear emulsifying pumps: the upper emulsifying pump installed on the top of the pot lid and the lower emulsifying pump installed at the bottom of the pot, commonly known as the upper homogenizing emulsifying pump or the lower homogenizing emulsifying pump. What are the differences between these two forms? Let's analyze them together below.
These two types of high-shear emulsifying pumps can be designed as internal circulation emulsifying pumps or external circulation emulsifying pumps according to customer needs. The advantage of the upper homogenizing emulsifying pump is that it is easy to operate various products. The stirring homogenizer on the pot lid is connected to the frame and can be lifted and lowered, making it easy to operate and clean. Laboratory chemical machines with high-tonnage processing capabilities adopt the upper homogenization method, featuring a reasonable structural design.
The advantage of the lower homogenizing emulsifying pump is that the motor is installed at the bottom of the emulsifying pump. The lower homogenizing emulsifying pump is located at the bottom of the emulsifying tank, which facilitates material mixing during uniform blending. This structural design is simpler than the upper homogenizer and has a relatively lower cost. However, when using the lower homogenizing emulsifying pump to clean up small amounts of residual materials, it can be more troublesome. If it is not used for batch processing of specific product materials, it can be cumbersome to use. To ensure cleaning effectiveness, CIP cleaning equipment is required, which increases the price.
In daily use, attention should be paid to the maintenance of high-shear emulsifying pumps to improve production efficiency and extend equipment life. How to maintain high-shear emulsifying pumps?
1.Ensure the safety of the equipment and electrical control system before use.
2.Depending on the media of the materials, the inlet and outlet filters must be cleaned regularly. The material entering the working chamber must be fluid. Dry powder materials and agglomerated materials are not allowed to enter the machine directly.
3.Moving the spindle by hand should be easy, with uniform weight. There should be no other friction sounds or rolling sounds of foreign objects.
4.During equipment operation, if any abnormal sounds or other faults are detected, immediately stop the equipment for inspection. It can only continue to operate after the fault is eliminated.
5.If the processed material crystallizes, precipitates, or becomes viscous and thick after cooling (heating), with poor fluidity or even in the form of mud cakes and lacks good fluidity, the remaining material in the chamber and various crushing chambers must be discharged and cleaned at the end of production or when a new stage is completed. Otherwise, the equipment will be damaged when restarted, and it is also prone to shaft leakage.
6.Avoid idling during use to prevent material from becoming high-temperature or crystallized and solidified during operation, damaging the equipment. If excessive wear of parts is found, the corresponding parts should be replaced promptly.
What are the applicable fields of high-shear emulsifying pumps? Let's briefly understand them together below.
High-shear emulsifying pumps can be used for continuous emulsification or dispersion of multiphase liquid media, while transporting low-viscosity liquid media. They can also achieve continuous mixing of powder and liquid in proportion. They are widely used in daily chemicals, food, pharmaceuticals, chemicals, petroleum, coatings, nanomaterials, and other fields.