At present, all kinds of drying equipments *** is to warm up the material to 75°-90°, but too high warming is very unfavorable to the material, it will make the material internal nutrient loss, poor color, low yield, etc..
And electrostatic dryer is a room temperature drying, the role of the principle is this:
Electrostatic field drying is a comprehensive effect of the field, which has an ion beam (electron beams, negative ion beams to provide charge, but also to provide a greater number of free electrons), while there is an electromagnetic field radiation and the role of a constant electric field. It is a combination of various roles in a comprehensive role. Electrostatic field drying technology utilizes the interaction between the ion beam and the water molecules in the material, the blowing effect of the external ion wind, and the electric field force effect of the non-uniform electric field. In the drying process is mainly to realize the ion beam in the water molecules on the energy deposition, charge exchange. On the one hand, the energy-carrying ions into the material, and material molecules and water molecules interact, and gradually pass the kinetic energy to the material molecules and water molecules, until the kinetic energy of the ions is completely dissipated and stopped in the material, that is, the incident ion energy transfer and deposition process, thereby increasing the energy of the water molecules to promote the water molecules in the hydrogen bond break, so that the molecular group into a single water molecule to reduce the volume of the single water group; make the water molecules and the hydrophilic substances in the material. Water molecules and materials in the hydrophilic material separation, for the water molecules out of the resistance to reduce. On the other hand, ions and water molecules undergo charge exchange, so that the ability of water molecules to carry ions increases, even if the number of charges carried by water molecules increases, under the action of the electric field, the free water inside the material moves to the surface. Will be opposite to the electrically charged ions "blowing" to the material below the pole plate, the number of ions in the air increases, the wind volume increases. This accelerates the movement of water molecules on the surface of the material, and the ionized wind constantly produces a reduction in the humidity of the air on the surface of the material, increasing the humidity gradient of the air on the surface of the material, so that the water molecules are more conducive to detachment from the surface of the material, thus generating the drying phenomenon. In this process, because there is no direct transfer of heat, the temperature of the material does not have significant changes in the material can be maintained without loss of the active ingredients of the material. In the drying process accompanied by the production of a certain amount of ozone, and ozone has a strong disinfection and sterilization, so in the drying process can also play a role in sterilization of materials.