2T/H Complete Wood Pellet Production Line

2t/h complete wood pellet production line is suitable for most investors to start pellet production for commercial purposes because the investment of machines is not high, the building required to install the machine is not big, the operation of the machine is easy and the pellets are high quality which can comply with EN and DIN Plus A1 standard.

A 2t/h complete wood pellet production line includes: Debarking part, Chipping part, Drying part, Crushing part, Pelletizing part, Pellet cooling part, and packing part.

• The debarking part is using a wood debarking machine to move the bark of wood, because under DIN and EN standard pellets should not contain wood bark thus reducing the ash content and smoke emission when burning the pellets.

We use double roller wood debarking machine, which has a 95% debarking rate, the operator can use the loader to put wood logs into a debarking machine or put wood manually, the machine can automatically working to peel the bark of wood by the rotating rollers after wood got debarked the hydraulic system can open the door to discharge the wood.

• The chipping part is used to turn the wood logs into wood chips, the machine applied in the chipping part is a rotary drum chipper, this kind of chipper equipped feeding conveyor, discharge conveyor, hydraulic system, and electric panel. Feed wood logs to feeding conveyor, the conveyor can move the wood logs to feed inlet, the rollers at inlet place can send wood logs inside chipper, the rotating blades and stable blades will cut wood logs into chips. The wood chips from the drum chipper are uniform in size about 20-30mm. If the wood log diameter is a little bigger than the height of the feeding inlet, the hydraulic system can push up the upper rollers to make the wood feed into the chipper. The electric panel can control all of the motors in the chipping part and protect the machine from overload.

• The drying part is designed to reduce the moisture of wood chips, normally the moisture of fresh wood is higher than 15% while the requirement of raw material feed into pellet mill is 12-15%, so there is a drying system need to pre-process the moisture of wood chips. For a 2t/h wood pellet production line, it is better to use a rotary drum dryer to improve the drying efficiency. A rotary drum dryer designed with feeding conveyor, heating furnace, drum tube, dried material outlet system, and dust collection system. Wood chips and hot air go into the drum tube together, during they move forward inside the drum tube, the mixture and hot air evaporate the water content in wood chips.

• Hammermill is used to turn the dried wood chips into sawdust since the best size of raw material feed into pellet mill is around 5mm like sawdust. So we need the grinding device to refine the size of wood chips to sawdust.

We use a water drop type hammer mill in a 2t/h complete wood pellet production line to take the grinding work.

A water drop type hammer mill is a vertical structure, material feed into a hammer mill from the top by conveyor, inside hammer mill the rotating rotor brings the hammers to bite wood chips and crush them until the size of wood is smaller than the holes on screen, they got discharged.

The specially designed water drop type makes feeding wood chips easier, the more important is this hammer mill can be opened from two sides, that means only open the door from two sides can change hammers, screen and do maintenance to hammer mill, thus can save a lot of time and labor compared with common hammer mill if need maintenance needs to move the cover on top.

• The pellet mill is the part in a 2t/h complete wood pellet production line to make pellets. We use two sets of ring die pellet mill model MZLH420 to get 2/h pellets output. The ring dies type pellet mill can make DIN and EN plus A1 standard pellets. And our MZLH420 model ring dies pellet mill has high stability and performance to make high-quality pellets. The maintenance is quite easy.

Our MZLH420 model ring dies pellet mill is equipped with a feeder auger which is VFD-controlled rotating speed, thus controlling the feeding speed from the electric panel to avoid overload.

In front of ring die equipped with force feeder which can press sawdust into the pelletizing chamber to make pellets.

The ring die of the MZLH420 pellet mill is made of 42CrMnTi alloy steel, which can combine the hardness of raw material, temperature resistance, and lifetime.

This pellet mill is equipped with a cutter, which can adjust the length of pellets.

After the pellet mill produces pellets, the rest work is to cool down the pellets by pellet cooler, sieve pellets by the screener, and pack pellets into bags by packing machine.

We use a counterflow pellet cooler to cooling down wood pellets to room temperature. The whole system is controlled by the electric panel to suction cool air into the cooler, feeding pellets to the cooling tank and discharge pellets from the cooler.

A pellet cooler can reduce the temperature of pellets, increase the hardness of pellets, decrease the moisture of pellets, the other advantage is to store the pellets after the cooler the pellets can not crack on the surface.

A pellet sieving machine is needed aftercooler to pick out the powder, dust, and small granular from good pellets, thus making sure the pellet's go-to packing machine is of high quality.

To pack pellets into bags is the last step of a 2t/h complete wood pellet production line. We have a solution to pack pellets into small bags and jumbo bags.

For small bag packing usually pack in 10-50kg plastic bags or 50-100kg woven bags, we have accordingly packaging machine to pack the pellets and seal bags.

For jumbo bags packing is usually pack in 500kg, 1T or 2T per bag jumbo bags. We have a jumbo bag packing machine to fill pellets into bags.

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