In the process of daily paint and coating production, it is usually the solid pigment and liquid paint paste and various additives, small materials, etc. to be mixed and stirred, so that the product has a certain fluidity, which is convenient for entering the next step of more refined grinding and dispersion. This mixing of pigmented paint production ingredients is also known as agitation or pre-dispersion.
The role of pre-dispersion is as follows:
1. Mix all kinds of pigments and liquid paint paste evenly
2. The paint paste replaces the air adsorbed on the surface of some pigment particles, so that the pigment can be partially moistened
3. Make the large pigment particles initially depolymerize to shorten the working time of the next grinding and dispersion and improve the dispersion efficiency.
This process, although called mixing, also has a dispersive effect.
Platform disperser is equipped with automatic steering function, the whole machine is installed on the steel structure platform or concrete floor, generally using a machine with multi-cylinder operation form, if you rely solely on manual manual steering, both bulky and unsafe, so now the automatic steering function has been popularized by the public. When it is necessary to change the cylinder after finishing a cylinder material, after pressing the machine rise button to leave the cylinder mouth, the motor drives the gear rotation to return to the defined position, and then presses the down button to enter the operation of another cylinder. The configuration of the dual guide rods makes the machine more stable and does not run shakily.
Platform type high speed dispersers are suitable for mass production. In order to better play the efficiency of the equipment, a high speed disperser can be equipped with 2-4 cylinders, can also be used with 2 high speed dispersers with 6 cylinders, commonly known as a machine three cylinders, in turn to operate, a machine three cylinders can also be evenly distributed three cylinders, into a three-legged standing trend, while the steering positioning also needs to fall accurately to the middle of the cylinder.
Platform type high speed disperser is the use of frequency conversion speed regulation form, high speed disperser in the work, generally in the just added powder when the need for low-speed operation, so as not to fly the dust inside, because of the large capacity, just at the beginning of the powder and liquid is not completely mixed, at this time the viscosity of the material is also the largest time, so low-speed first mixed uniformly and then high-speed shear is very necessary. The previous high-speed disperser speed regulation methods are electromagnetic speed regulation, two-speed, three-speed, frequency conversion speed regulation, and most of the frequency conversion speed regulation is currently used. Frequency conversion speed regulation is to change the frequency of the power supply through the frequency converter, thereby changing the speed of the AC asynchronous motor. The frequency converter used in high-speed disperser has the advantages of small starting current, smooth control, easy to use and energy saving.