How to reduce wood shavings breakage rate in the drying process ?

02-13-2023 Hits：

Dry wood shavings with moisture content about 13-15% is rather popular to be used as animal bedding material for horse, small pets, etc.

When to use rotary drum dryer to heat and process wood shavings, some is broken and become wood powder, and it is not suitable and good for the animal health. What is more, it is also one profit lose for the producer.

Then, in order to reduce the wood shavings breakage rate in the drying process, we have to firstly find out which factor cause this problem ?

The working principle of wood shavings dryer machine is to use both of the high temperature air and hot dryer cylinder to heat and dry the wet material, then to evaporate the water into vapor and get rid of it, finally get the dry product.

For the rotary drum type wood shavings dryer, in order to increase the heat contact area, inside there are many lifting plates welded in certain slope, which can help to disperse the wood shavings sufficiently.

In operation, the rotary dryer body is rotatuon with certain speed, and the inside lifting plates makes the wood shavings up and down, and moving to the end of the dryer. During the moving process, not only the humidity become lower, but also some wood shavings is broken into wood powder.

As you see, the wood shavings is rather thin, especial when it become dry, it is very easier to be broken into powder, and it is unavoidable.

What we can do is to reduce the wood shavings breakage rate as much as possible.

Combinning the past years' experience, Sunco Machinery engineers suggest the solution as follows:

>>> Not to make the wood shavings too dry, and the suitable moisture content suggested is about 13-15%, which also is safety storage humidity for bagging.

>>> Optimize the inner structure of rotary dryers, not only to make sure it can help to generate enough heat contact area, but also to reduce the wood shavings dropping distance inside the dryer.

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