The dried wood chips out of the wood chips dryer is about 80-90 centigrade, and it is better to be cooled down to be below 40 centigrade before packing into bags. As if we directly pack the hot wood chips into bag, and after some time, some of the water vapor mixed with the hot wood chips will become water again, and it may make the dried wood chips wet again, and influence the quality of the dried wood chips.
After being dried by wood chip dryer, what are the key Points to cool down the hot wood chips ?
Some people said that we can use the air to cool down the hot wood chips. Yes, it seems ok. But as the size of the wood chips is not even, some are small size, some are big size, then the cooling efficiency of the wood chips are not same. What is more , the air speed is very quick, and the air cooling system is mainly for the powder type light material. If we use the air to cool down the hot wood chips, then it will need a large rotary drum to supply the cooling down room.
Some people said that we can use the water to cool down the hot wood chips indirectly. Yes, it is seems ok. But the water cool down the hot wood chips indirectly, then the cooling efficiency is low, what is more, we also need a large rotary drum .
Dingli Machinery suggest that :
1- We use the water cooling system and air cooling system together;
2- We design the special inner structure of rotary drum to make the bigger size hot wood chips to be dried for a longer time, and to let the smaller size wood chips to be cooled down for a shorter time.
For more information of the hot wood chips cooling down system and wood chips dryer machine, please do not hesitate to inquire us: dingliwyt@gmail.com .
We will give you customized Proposal & Quotation within 24 hours.