CE Automatic Wood Pellet Plant

CE Automatic Wood Pellet Plant Biomass Pellet Plant Biomass Pllet line Straw Pellet line

CE Automatic Wood Pellet Plant 250-700KGS/H:

Pelletizing is the process of making waste materials into solid fuel. The objects are used for burning purpose. Wood pellet can be made from many type of agro-forestry waste: Groundnut shell, sugarcane biogases caster shells, stalk, sawdust, coffee husk, paddy straw, sunflower stalk, cotton stalk, tobaco waste, bamboo dust, tea waste, wheat straw, palm husk, soybean husk and other agro wastes.

1. Crushing process:

Depending on the different input material, we fit out the suitable crushing machines. Our combined chipping and crushing machine is used for the raw log with diameter≤20mm;SFSP hammer mill is widely used to crush all kinds of straw, wood chip, tree branch, bark and leftover bits from agricultural wastes. The best  moisture content in the crushing process is less than 20%, and the thickness of the wood chip is less than 5mm.

2. Drying process:

The best moisture content to pelletizing is about 14-16%. Our new Air-current rotary dryer is made up of burning stove and main rotary dryer, which can realize to reduce the moisture from 50% to 10%, and save about 30% energy consumption comparing the old rotary dryer. Burning stove is fueled by coal and wood material, which can save electricity sonsumption largely. If the user want to use other fuel such as gas and electricity, one burner is necessary, but the extra cost will be charged. 

3. Pelletizing process:

Wood pellet mill is the most important equipment which have the following features:

1) The lubrication system for wood pellet adopts the tracing and inspecting system controlled by the microcomputer. When the temperature of the bearing is over the normal temperature, the microcomputer will start the round closed auto-lubrication system to lubricate the bearings, which complete solved the trouble of lubricationg roller depending on the operation experience. The lubrication system is made up of tracing and inspecting system controlled by the microcomputer, auto-lubricating system on time and compelled lubricating system by hand.

2) Driving gear adopts the high precision gear transmission structure. The wear bearing is made from China biggest bearing manufacturer according to our special request. The ring die adopts the hoop fastening method, which is increasing the speed of discharge comparing with the past bolt fastening method. As a result, the capacity is 10-15% higher than the belt transmission structure.

3) As per the ring die and roller of the wood pellet mill, we have the fine machining with the alloyed steel, such as 20 CrMnTi and 40 Cr; and stainless steel, such as 4 Cr13 and 3Cr13. And our heating treatment is also different from the other domestic manufacturer, our carburizing treatment make the depth of hard facing to 2mm, which improve the anti-abrasion of the ring die and roller more than 10minutes, it can save the production cost heavily.

4. Cooling proecess:

After the pelletizing process, the temperature of the wood pellet is about 60-80 degree, and the moisture content of the one wood pellet is about 15%, so we need use cooler to reduce about 3-4% moisture, in this way, the wood pellet is easily stored.

But considering the feedback from some foreign clients, the local climate Is very humidity, they hope to cool the wood pellet with moisture of 7-8%. In order to satisfy the different need from different clients, we develop one kind of new stabilizer combined cooler.

5. Packing process:

After cooling, the wood pellet will not directly enter into the fuel process, avoiding the wood pellet affected with damp. The packing process is necessary. In this process, we assemble our domestic best Semi-Auto Packing Machine.

CE Automatic Wood Pellet Plant