A vacuum mixer is a commonly used laboratory equipment for mixing and homogenizing various liquid, semi-solid, and viscous materials. Widely used in the chemical, pharmaceutical, food, and cosmetics industries, it has become one of the important technological means. This article will focus on introducing the equipment and process principle of vacuum mixer.
The vacuum mixer is mainly composed of a mixer, a vacuum ripple device, a heating device, and a frame. Among them, the agitator is the core component of the vacuum agitator. Agitators are usually composed of three parts: rotor, stator, and stirring blade. Different shapes and sizes of stirring blades can be selected according to the characteristics of different materials. The vacuum wave device is mainly used to extract gas from the equipment and maintain the internal vacuum state of the equipment.
The working principle of a vacuum mixer mainly includes three parts: stirring, heating, and vacuum spreading. Firstly, inject the materials to be mixed into the mixer and start the motor to drive the rotor to rotate the mixing blade. Under the continuous rotation of the stirring blade, the material is constantly mixed and homogenized, achieving the expected mixing effect.
Secondly, to improve the mixing effect, it is usually necessary to heat the material during the stirring process. By heating, the thermal motion of molecules inside the material is accelerated, thereby promoting the interaction of molecules between materials and accelerating the mixing process. To ensure the heating effect, vacuum mixers usually use electric heating rods or oil baths for heating.
Finally, to ensure that the mixing process is carried out in a low-pressure environment, the vacuum mixer needs to be vacuum swept. Activate the vacuum ripple device, extract the gas inside the equipment, and keep the entire equipment in a vacuum state. In a vacuum state, the intermolecular forces between materials decrease, resulting in better mixing effects.
