Drying

1. Application of mid-end microwave output variable heating type (20kW)

a) Problems of the conventional microwave drying machine

Currently, most of the mw drying machines used in Korea are equipped with small magnetron below the power of 1kw ~ 3kw.

When one small magnetron is installed, the users can get the desired results. However, when several magnets are installed, both efficiency and stability become poorer.

b) Effective side-by-side comparison with traditional small microwave dryers’ materials

c) Multiple Small Microwave Dryer and Economical Comparison

The following figure is the basic structure of microwave:


 

2. Using load-dependent output variable device (smart drying method)

Generally, the MW drying machines continuously radiates same magnitude of wave irrespective of the water content. However, if the materials to be dried have low water contents, vast amount of reflected waves are generated and the efficiency is lowered, which may adversely affect the machine's lifespan.

On the other hand, smart microwave can continuously measure the change in water content and change the MW outputs to increase the efficiency of drying, even those with low moisture contents. This can also contribute to stability of the machine usage.

3. Uniform drying is possible with homogeneous moisture contents

Since the chamber of the dryer is very large, the uniform moisture contents after drying is very important. This feature is essential for stable drying of the materials.

4. High efficiency can be achieved by using high efficiency magnetron

High power (over 20kw) microwave drying machines have circulator to protect the machine from the adverse effects of reflected waves. This circulator adversely affects the efficiency of the drying.