Expert analysis: Why does the dryer not dry?

The dryer is mainly used in industry to deal with moisture in materials for further processing or storage purposes, but some users will experience it in use. Why does the dryer not dry the processed materials?

dryer's drying ability is related to the drying and wetness degree of materials, not to say that any substance can achieve good results in the same time? 。 It is also related to the choice of heat sources. Highly humid materials, if not fully dried, will be slightly humid out of the material, and the choice of heat sources, is also critical. It is very important to choose heat source

: There are many heat source equipments as matching equipment of drying equipment, which are usually classified according to the fuel consumed, such as coal, oil, gas, electricity, etc. According to the heat transfer situation, they can be divided into direct heating and indirect heating of drying medium.

For example, the boiler heates water to form water vapor, and then the water vapor heates the drying medium through the radiator, which is two indirect heating. The total thermal efficiency of this method is very low, only about 40%. In some factories, there are many hot spots in production. In order to facilitate the centralized heating and management, it is more used.

There are also power-consuming, oven, microwave and so on. Power-consuming equipment has replaced the traditional combustion heating, which is extremely conducive to the sustainable development of environmental protection in China from the perspective of industrial environmental protection. In the process of choosing and purchasing dryer, we must understand our own needs. If the power of the equipment is not enough, the material will be in an unsatisfactory state of drying, which can not meet the drying requirements. So when choosing dryer , we should know clearly the drying output, the initial moisture content and the final moisture content of the material, to calculate how much heat energy is needed, and then calculate how much power consumption is needed, etc.