Silicon carbide microwave drying equipment is widely used for drying silicon carbide.

Pure silicon carbide is a colorless and transparent crystal. Industrial silicon carbide appears in light yellow, green, blue, and even black colors depending on the type and content of impurities it contains,transparencyIt varies depending on its purity. silicon carbidecrystal structureDivided into six directions orrhombThe α - SiC and cubic β - SiC (referred to asSiC）Due to itscrystal structureThe stacking sequences of carbon and silicon atoms are different, forming many different variants, of which more than 70 have been discovered. β - SiC transforms into α - SiC above 2100 ℃. The industrial production method of silicon carbide is to refine high-quality quartz sand and petroleum coke in a resistance furnace. The refined silicon carbide blocks are processed into products of various particle sizes through crushing, acid-base washing, magnetic separation, screening, or water selection.

Due to its low natural content, silicon carbide is mainly artificial. The common method is to mix quartz sand withcokeMix and utilize silicon dioxide and petroleum coke, add salt and sawdust, place in an electric furnace, heat to a high temperature of around 2000 ° C, and obtain silicon carbide micro powder through various chemical processes.
The overall appearance of microwave drying equipment is compact, beautiful, smooth, and occupies a small area. Design a reasonable box size based on the physical characteristics of the material, so that the microwave power density inside the heater is uniform, and the microwave is fed in from top to bottom in a broadband manner, making the heating of the material more uniform. Adopting new microwave drying technology and equipment. It can achieve pollution-free and uniform drying of materials, while significantly reducing the drying temperature. In addition, the drying speed is usually increased by several times, the production efficiency is greatly improved, and the drying energy consumption is usually reduced by more than 50%, ultimately achieving safe, clean, and efficient production.

The characteristics and mechanism of microwave drying are different from general drying techniques, and can be summarized as follows:

1) The drying layer in the microwave drying process first forms inside the material, and then expands outward from the inner layer. The reason is that the material is heated both inside and outside under microwave conditions, with the internal temperature higher than the external temperature. Water vapor is discharged from the inner surface, and a dry layer is formed inside the material first; Conventional heating can easily form a dry hard shell on the outside of the material, which not only affects the quality and appearance of the material, but also reduces the drying speed. Microwave drying fundamentally avoids the occurrence of the above situations.

2) Microwave drying is energy-saving. Drying using far-infrared and steam energy has an energy utilization rate of less than 50%, while using microwave as energy can achieve a utilization rate of over 75%, reducing energy consumption by more than 25% compared to far-infrared and steam drying.

use; The unique microwave source and its control technology ensure the long-term continuous and stable operation of the microwave source system in various complex environmentsmagnetronThe normal service life is ≥ 1 year;

Adopting an efficient microwave transmission system specially designed according to standards, the material is uniformly fed with energy to ensure uniform drying and effectively avoid the phenomenon of local high temperature of the material;

Adopting an innovative mathematical model and combining it with the requirements of the drying process for scientific chamber design, ensuring high dehydration efficiency while avoiding

Prevent the occurrence of adverse phenomena such as "hot spots", "sparking", "splashing materials", and "burning belts" inside the cavity;

Main performance and technical parameters

Tailored according to customer needs;

Control the high operating temperature of the conveyor belt to be ≤ 200oC;

Microwave frequency: 2.45GHz ± 25MHz;

Touch screen display and control, with dual operation functions of automatic and manual;

Using an infrared humidity measuring instrument to measure the temperature and humidity inside the heating box and achieve precise control throughout the entire process;

Microwave leakage rate:< 2mw/cm2.

1. Input power supply: three-phase five wire 380V ± 10% 50Hz ± 1%
2. Microwave output power: 48kW (adjustable)
3. Microwave frequency: 2450MHz ± 50Hz
4. Rated input apparent power: ≤ 69kVA
5. Height of inlet and outlet: 50mm
6. Belt width: 500mm
7. Transmission speed: 0.1-5m/min
8. Dimensions (length x width x height): approximately 12700 x 665 x 1668mm
9. Working environment: 0-40 ℃, relative humidity ≤ 80%
10. Number of microwave enclosures: 8 enclosures
11. Compliant with GB 10436-1989 Workplace Microwave Radiation Hygiene Standard
13. Compliant with GB/5226.1-2002 Mechanical Safety Mechanical Electrical Equipment

foldMain application areas

Drying of high moisture viscous materials;

Drying of materials such as powders, granules, flakes, strips, plates, and small blanks;

Activation and regeneration of catalysts;

Drying, sterilization, and disinfection of solid waste such as sludge;

Drying, sterilization, and disinfection of food, drugs, and pharmaceutical raw materials;

Drying, insecticidal, and antifungal treatment of rice and flour;

Tea withering and aroma enhancement;

Curing of polymer materials;