Drying equipment can be divided into several stages when drying

Abstracts:

Drying equipment can be divided into several stages when drying? If we assume that the material is unchanged, there will be no chemical reaction, then the drying equipment will dry the material in four stages, the specific stages are as follows: 1, speed drying stage: that is, with a very high temperature in a relatively short period of time to the surface of the material to the evaporation of water, this stage requires a relatively short period of time, but is also limited to the surface of the…

How many stages can drying equipment be divided into when drying? If we assume that the material is unchanged and no chemical reaction will occur, then the drying equipment will dry the material in 4 stages as follows:

1. Rising speed drying stage: is a very high temperature in a relatively short period of time to evaporate the moisture on the surface of the material, this stage requires a relatively short period of time, but is also limited to the surface of the water, so this stage of the water output is not large.

2. Equivalent drying stage: to this stage is the heating of the material, so that the material inside the water slowly to the surface of the supplement, because the surface of the material is subjected to high-temperature heating, so the material surface of the water evaporation is very fast, when the material inside the surface of the supplement to the speed of water can not keep up with the surface of the material evaporation of water when the rate of drying into the reduced-speed stage.

3. Reduced speed drying stage: this stage of the material moisture has been evaporated by a large part of this stage is the material is slowly drying, slowly to the internal moisture to the surface of the material to be forced to evaporate.

4. Balance drying stage: when the moisture inside the material is forced to dry, there is no more moisture to the surface to supplement the time, it enters the balance of the drying stage, this stage is the material is dried to get the finished product stage.