Dry the fresh chipped material by a short time of fermentation
To get good results in drying the chipped material, it is imperative to follow a procedure in wood harvesting.-
It is very important to chip as sonn as possible after cutting. The best is to be able of cutting and chip in the same time.
It avoids tangle of branches, which would give a lot of difficulties during chipping.
By chipping as we cut, the workspace is well cleared, allowing an easier job and increasing safety. In these contitions, fermentations starts quickly and strongly. -
It is better to provide a storage on a height of 1 meter, during 1 month.
Fermentations increases the temperature, which will rise quickly 70 to 80 °C. If the heap is too big (too high), internal carbonization can occur an there will be loss of material.
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After the first month of fermenting, the temperature falls and then it is possible to stock the chipper material in higher heaps.
The slower fermentation will continue to dry the chips, which will reach dryness less than 20% humidity on about three to five months.
The wood chips' granulometry is essential both for the correct fermentation and drying process, and for the correct subsequent use in a automated woodchip boiler. Indeed, the absence of large pieces of wood allows for significant energy savings at the level of the feed screws of automatic boilers, by requiring less effort from the reducers driving these screws.
Our chippers are the only ones designed specifically to achieve the perfect quality of wood chips without needing any kind of sorting. They don't include sawdust or big pieces, allowing for immediate valorization at the output of the chipper.
If you're interested in buying a chipper you can contact us for more information, or take a look at ourchippers range.
Fermentation in order to dry of fermentation in order to heat ?
We explained previously that fermentation protected from bad weather made it possible to dry wood chips efficiently and quickly for use in an automatic boiler or wood chip stove. But the fermentation that begins after grinding woody plants can be used according to the Jean PAIN Methods, this time by providing regular watering, to produce an organic amendment and, at the same time, to recover heat through contact with the fermenting mass. The link will take you directly to a page explaining this process and its history.récupération de chaleur par contact avec la masse en fermentation.
