A Mutiple of Drying Machine and System

YANTAI, China - Nov. 12, 2015 - PRLog -- Drying systems, no matter how sophisticated and complex, all have the same principle: it drive moisture from a material. One of the most common methods for driving moisture is evaporation. Evaporation happens naturally on its own over time, but the process can be sped up with the application of heat to the material, either by direct or indirect measures. Direct heating methods expend energy to heat the target material itself. Indirect methods use energy to heat another object such as an oven or a boiler that acts as a reactor between the energy source and the material. Generally speaking, direct heating methods are faster, and cause more rapid drying.

Microwave drying machine has promoted to be a direct heating method in numerous applications. Since the 1970, many industries initiate to use new microwave heating technology for commercial and industrial applications. s. In earlier days, the technology was relatively unknown, leading to safety fears. Large scale use was considered expensive when compared with conventional methods of heating. Since then, the technology has progressed to the point of being reasonably foolproof. For example, the FDA limits the amount of microwave energy that can leak from commercial ovens. This limit is far below the level known to harm people. Many safety features have been incorporated, and the overall cost today is very competitive. Microwave energy-alone or in combination with conventional energy sources makes it possible to control the drying process more precisely to obtain greater yields and better quality products in the shortest possible time. The mechanism for drying with microwave energy is quite different from that of conventional drying. In conventional drying, heat is transferred to the surface of the material by conduction, convection or radiation and into the interior of the material by thermal conduction.

Microwaves are not forms of heat but rather forms of energy that are manifested as heat through their interaction with materials. Microwaves initially excite the outer layers of molecules. The inner part of the material is warmed as heat travels from the outer layers inward. Most of the moisture is vaporized before leaving the material. If the material is very wet and the pressure inside rises rapidly the liquid will be removed from the material due to the difference in pressure. This creates a sort of pumping action forcing liquid to the surface, often as vapor. This results in very rapid drying without the need to overheat the atmosphere and perhaps cause case hardening or other surface overheating phenomena.

Energy Savings

The offsets to the current cost of electricity include: increased speed of drying, the direct coupling of energy into the material and possible lower drying temperatures. Heating the volume of a material at substantially the same rate is possible. This is known as volumetric heating. Processors that use steam, gas or electric heating systems 3 are aware of the high costs of running these systems. Consider these energy-saving benefits of microwave heating verses conventional heating.

1. Slash energy consumption by up to 50% or more

2. Reduce man-hours and downtime involved in cleaning

3. Minimize additional equipment such as heated jackets, boiling pans and heating & cooling vessels

4. Smaller equipment footprint

5. Eliminate warm up and cool down time

6. Microwave energy does not heat the room only the material.

For Microwave Dryingn Machine, you can contact with MAX Industrial Microwave