Graphite material dryer uses microwave drying to meet various needs
- May 03, 2019 -
Features of microwave graphite dryer : 1. Fast drying speed and short drying time. 2. The heating time is fast, without preheating. Microwave heating material can make the material receiving microwave reach the required drying temperature in a very short time. 3. High thermal efficiency. In the process of microwave heating, the material is heated both inside and outside, and the microwave is directly impregnated in the material. Therefore, the thermal efficiency of microwave heating is higher than that of conventional heating equipment. Clay graphite products can be used as crucibles, plugs and nozzle bricks. Refractories with graphite as the main component. Some refractory products made of graphite and clay as the main raw materials are included in this category. According to the content of clay and graphite, they are called clay graphite products (with more graphite content) and graphite clay products (with more clay content). In microwave electromagnetic field, the magnitude of P receiving microwave power is proportional to the square of frequency f, electric field strength E, dielectric constant & epsilon, R and the positive tangent value of dielectric loss TG & delta. Graphite is a kind of equipment with strong absorbing ability, so graphite can be easily dried in microwave field. The finished graphite can be used as the lining of reflecting tank and autoclave in chemical industry. Graphite blocks can be used as electrode materials in electrolytic metals such as magnesium and nickel. It has also been widely used in the construction of corrosion-resistant heat exchangers and in the construction of high-temperature furnaces. Graphite is the main refractory. Some refractory products made of graphite and clay as the main raw materials are included in this category. According to the content of clay and graphite, they are called clay graphite products (with more graphite content) and graphite clay products (with more clay content). Microwave drying is a new drying technology, because of its fast drying speed and environmental protection characteristics has been widely used. Microwave energy is usually obtained by DC or 50Hz AC through a special device. Graphite products can also be made by graphitizing carbon refractories in resistance furnaces by holding them at 2500-2800 degrees C. Graphite material drying equipment, graphite drying equipment, graphite powder drying equipment, natural graphite drying equipment, artificial graphite drying equipment are the company's custom microwave drying equipment for Panbo graphite manufacturers. Material consisting of polar molecules can receive microwave energy well. Water molecule is extremely polar and the best medium to receive microwave. Therefore, any substance containing water molecule must receive microwave. The other group is composed of non-polar molecules, which do not accept or rarely receive microwave. These substances include PTFE, PP, PE, polysulfone, plastic products, glass, ceramics and so on. They can pass through microwave, but not accept microwave. These materials can be used as containers or supports for microwave heating or as sealing materials. The heating of graphite material dryer equipment microwave is caused by the loss of electric field energy of dielectric material itself. However, the dielectric constant and tangent value of dielectric loss angle are not consistent, so the thermal effects of microwave electromagnetic field are different.
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