How to deal with uneven heating temperature of hot air circulation oven

In the production of many enterprises, hot air circulation ovens are often used.
When drying materials, the materials in the oven will be unevenly dried.
Some places are dried, some places are still wet, and some are dried on the top of the oven.
Some of the lower parts are still wet.
This phenomenon is a common problem in the use of hot air circulation ovens.
Let's discuss together how to solve this problem
.


Solution 1.
Adjust the pressure of the hot air outlet.
Let's take the advective air to explain.
For example, the height of the oven is 1500mm, then the hot air should be divided into several levels, and do not let the hot air come out from a certain layer, which will cause If the temperature of a certain layer is too high, it is easy to dry first, while others do not have such drying efficiency.
The air outlets should be distributed evenly, and the upper air outlet gap is slightly smaller than the lower air outlet
.

Solution 2.
The wind pressure of the hot air circulating fan is not large enough, and there is not enough wind pressure to make the hot air circulate inside the oven, which will also cause the temperature in a certain position in the oven to be uneven.
Increase the power of the circulating fan and the diameter of the impeller.
, so that the hot air can circulate in the oven powerfully
.

 　　Solution 3.
The heating device in the oven is not placed in the wrong position.
It is placed in a place where the circulating air cannot reach, which is what we usually call a dead corner.
This will cause a certain position in the oven to be high.
It is best to place the heating device.
Move to a ventilated location
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 　　Solution 4.
If the above methods have been tried many times, but there is still no improvement, then it is necessary to check whether the placement of the materials to be dried in the hot air circulation oven or the way of designing the circulating air in the oven is correct or not.
Some materials will block it.
If the circulating air is used, then it is necessary to change the material placement state to improve the material drying efficiency
.