Karaoke powder microwave drying and sterilization equipment/industrial microwave sterilization machine/fully automatic powder microwave drying and sterilization equipment

Principle of Microwave Drying:

Microwave refers to a frequency within300Megahertz to300Gigahertz electromagnetic waves. Usually, substances are composed of polar and non-polar molecules. Under the action of microwave electromagnetic field, polar molecules in the medium change from their original thermal motion state to align and orient following the alternation of microwave electromagnetic field. For example, the microwave frequency used is2450Megahertz will occur every second24.5When arranged in billions, there will be intense friction between molecules. During this process, microwave energy is instantly converted into heat within the substance, causing the temperature of the substance to rapidly increase.

Microwave drying characteristics:

1Fast heating, efficient and energy-saving:Microwave heating and traditional heating methods(Heat conduction, convection, radiation)The mechanism is completely different. It causes the heated material itself to generate heat without the need for thermal conduction, and the equipment and air do not absorb heat. The material reaches the heating temperature inside and outside in an instant, which is energy-saving compared to traditional electric heating and far-infrared heating2-3More than double.

2Uniform heating and improved product quality:Microwave energy penetrates into the interior of the material, generating thermal energy both inside and outside the material surface. Selective heating ensures uniform heating of the material, without the occurrence of external coke or internal heat generation. As the surface moisture of the material continues to evaporate, the surface temperature of the material will be slightly lower than the inner layer temperature, forming a temperature gradient pointing from the inside out, which is consistent with the direction of steam pressure migration and heat migration that occur during the heating process. According to the theory of material drying, this heating state is highly beneficial for material drying.

3Small thermal inertia, instant heating, easy control:The energy output by the microwave is immediately absorbed by the material and heated. But for traditional heating, their output energy is absorbed by both the material and the cold furnace body. Micro heating only requires electricity, and immediate heating or termination can be achieved by controlling the microwave power, without a preheating process. Application human-machine interface andPLCAutomated control of the manufacturing process can be achieved.

4Small footprint, safe and environmentally friendly:Microwave energy is concentrated and heats quickly, making it occupy less space. The scientific leakage suppression system strictly controls microwave leakage within the national standard range, does not produce radioactive hazards, and the entire process does not emit harmful gases or generate waste heat and dust pollution.