Microwave chemical dryers are mainly used for drying and dehydration of powdery and granular materials.
Conventional heating such as flame, hot air, steam drying and so on are all based on the principle of heat conduction. Heat is transferred from the outside of the heated object to the inside, gradually increasing the temperature in the center of the object, which is called external heating. It takes a certain amount of time for the central part to reach the required temperature, and the time required for objects with poor thermal conductivity is longer. These traditional drying methods take a long time, consume large amounts of electricity, are not evenly heated, flip up and down, and are labor intensive. The microwave energy has a drying characteristic. The microwave energy can penetrate the inside and outside of the object and heat at the same time. The frequency is 2450 MHz, oscillating at 2.45 billion times per second, and the water molecules are also oscillated by thousands of times. The molecules are rubbed with each other. Heat, self heating. Therefore, it can be widely used for drying and dehydrating of chemical products. For example: Cobalt oxalate, lithium hydroxide, nickel hydroxide, mannan, ammonium paratungstate, lithium cobaltate, strontium carbonate, strontium carbonate, etc., moisture content from 40 % after drying to 0.5%, drying time is only 6 to 15 minutes Drying temperature can be controlled at 80 °C ~ 90 °C.
Conventional heating such as flame, hot air, steam drying and so on are all based on the principle of heat conduction. Heat is transferred from the outside of the heated object to the inside, gradually increasing the temperature in the center of the object, which is called external heating. It takes a certain amount of time for the central part to reach the required temperature, and the time required for objects with poor thermal conductivity is longer. These traditional drying methods take a long time, consume large amounts of electricity, are not evenly heated, flip up and down, and are labor intensive. The microwave energy has a drying characteristic. The microwave energy can penetrate the inside and outside of the object and heat at the same time. The frequency is 2450 MHz, oscillating at 2.45 billion times per second, and the water molecules are also oscillated by thousands of times. The molecules are rubbed with each other. Heat, self heating. Therefore, it can be widely used for drying and dehydrating of chemical products. For example: Cobalt oxalate, lithium hydroxide, nickel hydroxide, mannan, ammonium paratungstate, lithium cobaltate, strontium carbonate, strontium carbonate, etc., moisture content from 40 % after drying to 0.5%, drying time is only 6 to 15 minutes Drying temperature can be controlled at 80 °C ~ 90 °C.