Biomass pellets production is now a hot industry because of their low price (compared to fossil fuels) and people’s awareness of using more environmental
friendly fuel. As a result, biomass pellets fuel has great market demand and is quite profitable. Now there are many pellets production lines all over the
world, but the pellets output still cannot meet demand. So, people who have access to biomass raw materials and distribution channel are aiming at setting up pellets production lines now. But as a matter of fact, not all of them are specialists in this field. Therefore, they need some guidance on pellets
production. Take wood for example. Wood pellets production process Wood is a common seen pellet production raw material, which includes timber, logs,
chips, shavings or sawdust of pine, acacia, cypress, beech, oak, and so on.
Generally if your raw material is asoftwood, you an pelletize it without adding additive; if your raw material is hardwood, you
need to add certain amount of softwood or binder (hardwood is comparatively difficult to pelletize). The wood pellets production technology goes this way:
1. Raw material crushing process: usually wood chips, logs or timber, etc.
must be crushed before pelletization. The reason is that these wood raw
materials are large pieces and can’t be pelletized directly. This process will
need wood chipper and hammer mill.
2. Crushed material sieving process: sometimes the raw materials have
impurities like stones or metal scraps. These impurities will destroy the pellet mill. So they shall be sieved.
3. Drying process: the sawdust usually contain much water. In this case, the dryer is indispensable. For capacity below 1ton/h, air flow dryer is enough. But for large capacity, drum dryer is good help.
4. Wood pellets producing process: the wood pellet mill also has different capacities. 50-500kg/h, use flat die pellet mill; >500kg/h, use ring die pellet mill or multiple sets of flat die pellet mill.
5. Pellets cooling and sieving process: the pellets have high temperature when produced by the pellet mill; as a result, a cooler is needed to cool the pellets. Besides, the counter flow cooler can also sieve the broken pellets or raw
material powder to get good quality pellets.
6. Pellets packing process: to pack the wood pellets in bags will make them easy to store, transport and sell. They can be packed into small bags and
large bags.
Above is whole wood pellets production line process, and other biomass raw
materials go similar steps.
At Shandong Double Crane Machinery Manufacture Co.,Ltd you can find professional people to help you solve all of the problem.
You can visit www.shpelletmill.com
erinjiang@sdshuanghe.com
没有评论:
发表评论