1, fast as conventional heating flame, hot air, electric, steam, are the principle of thermal conduction heat from the incoming external object to be heated within the temperature is raised gradually to the object, called the external heating. For the center of the required temperature, take some time, poor thermal conductivity of objects required for even longer. Microwave heating is to be heated as heating element itself, called the internal heating method, no heat conduction process, while internal and external heating, it can result in a short time to heat drying.
2, uniform heating of conventional heating, in order to improve the heating rate, you need to increase the heating temperature, prone to the phenomenon of coke endogenous. Microwave heating, the object can even penetrate the various parts of electromagnetic waves usually generate heat, thus greatly improve the uniformity.
3, energy efficient microwave heating, microwave? heating objects can only be absorbed heat, heated indoor air and the corresponding containers are not heat, so a high thermal efficiency, improved production environment.
4, easy to control the thermal inertia of small microwave heating. If equipped with computer control, are especially suitable for the heating process heating process automation.
5, selective microwave heating of materials with different properties have different effects, this advantage of the drying operation. Because water molecules absorb microwaves best, so the site of high water content, low moisture absorption of microwave power than the site of this is to choose heating characteristics. Drying of wood and paper? products, the use of this feature can be uniform heating and uniform drying.
It is worth noting that some material when the temperature is higher, the better absorption, resulting in a vicious cycle, a sharp rise in temperature caused a partial too dry, or even charring, microwave heating of such substances, we must pay attention to the formulation of reasonable heating process.
6, safe and sound in the microwave heating, drying, no waste water, waste gas, waste, and no radioactive material left over there, the microwave leakage is also significantly below the national development to ensure the safety standards is a very safe and harmless high-tech technology.
Microwave energy application in the chemical field
1, the promotion of chemical reactions, the new compounds 2, microwave plasma chemical vapor deposition and etching.
3, processing of? radioactive waste. 4, microwave sintering ceramics, charcoal.
5, microwave dispel. 6, Microwave Application in Analytical Chemistry.
7, coal and oil desulfurization. 8, microwave induced catalytic reaction and so on.
9, 10 refractory drying, preheating and curing rubber microwave desulfurization regeneration.
