1. Wood Pellet Production line introduction

biomass wood pellet making production line is used for make the biomass pellet fuel, The Material is widespread in life, for example, wood fiber crops and forest waste just like sawdust,rice,husk, corn straw, peanut shell, cotton stalk,mustard stem, bamboo, wheat-straw, palm shell,coconut shell,empty fruit bunch.

The complete wood pellet production line contain Wood Chipper Section, Wood Crushing Section, Sawdust Drying Section, Wood Pellet Section, Wood Cooler Section and Automatic section.

The wood pellet diameter we could supply from 2mm to 8mm. The generally size is 6mm and 8mm

2. Wood Pellet Production Process

2.1 Wood Chipper Section

The main machine in this section is Wood Chipper Machine, The function is that cutting the tree log and other biomass material into small chips.

The whole set of wood chipper equipment usually including 3 parts, the log feeding structure(Belt Conveyor), the wood chipper( Tree Chipper) and the chips discharging structure.

The log feeding structure usually adopted two ways, the conveyor or handwork. For the big log or high capacity model chipper, it usually uses the conveyor feeding the logs into the chipper. For the small model chipper, it usually feeding the logs into chipper by hand work, which could reduce the cost of the conveyor.

For the chips discharging structure, it usually adopted the two ways, the chips discharging tube or the discharging conveyor. The discharging tube could blow the chips to about five meters high and spray into the truck directly or the designated place. The discharging conveyor could transport the chips for a longer way to the designated place, such as warehouse.

Model: DX216 Main Power: 55kw Product capacity: 5-10t/h or 8-12m3 the Max wood log diameter: 200 mm knife roller diameter: 650 mm Inlet size:600 mm*300 mm fly-cutter number 4pcs feed speed 33 m/min finished wood chips product size less than 50*50mm,

2.2 Wood Crushing Section

The main machine in the section is wood crushing machine, The function is that crushing the wood chipper into sawdust.

This series of crusher adopts welded steel structure,and it’s motor and hammer mill rotor are mounted on a single base, using pin coupling direct drive, rotor passed dynamic balance test, and can work in reverse.The operating door is with safety interlock device to ensure that the operation door can not be opened when rotoris rotating.The mill feed inlet is at the top,which is compatible with various forms of feeding mechanism, hammer is arranged symmetrically. The structure of machine is simple and durable, safe and reliable, easy toinstall, operate and maintain,and the vibration is light and productivity is high .

Model: SFSP60*60 Main power: 55kw Product capacity:3-3.5t/h Sawdust size: 3mm-8mm Wide type screen is especially suitable for fine crushing, hammer can through millions of times struck, long service life

2.3. Sawdust Drying Section

The main machine in the section is rotary dryer. The function is that keep wood sawdust in dry condition for pellet

Model: GT1.5*15 Main power: 11kw Product capacity: 2t/h Evaporation capacity:0.85t/h rotary dryer diameter:1.5m Long:15m,

2.4. Wood Pellet Section

The main machine in the section is Wood Pellet Machine. The function is that make wood pellet.

2.4.1. MXLH series Belt drive biomass ring die wood pellet mill is part of a hard wood pellet ring die pellet mill, it is suitable to produce all kinds of biomass wood pellet production.Such as sawdust, crop straw, rice straw, wheat straw, corn stalks, sorghum stalk, soybean stalk, cotton stalk, grape straw, peanut seedlings, and sunflower stalk, rice husk, grass powder, shrubs, wood branches, wood cut-off head, bamboo debris, palm sawdust,rubber sawdust,.etc.

2.4.2.With compact structure, beautiful appearance, high output, low power consumption, easy maintenance, easy to operate, reliable work, etc.Automatic ring die lifting device easy to replace wearing parts.

2.4.3. This biomass pellet machine can optional all kinds of molds to produce wood pellet diameter from Φ2-Φ8mm, to meet the needs of different users, and also can customize according to the user.

2.4.4. Adopt international advanced manufacturing equipment and processes of steel ring die,new design roller,long use life, smooth to produce high quality wood pellet product.

2.4..5. This biomass wood pellet mill adopts frequency conversion motor feeder with pump lubrication system.

2.4.6. This biomass wood pellet mill have ring die lifting device,help customer replace the wearing parts easily.

Model: MXLH560*2 Main power: 92.5kw*2 Product capacity:2-2.5t/h Pellet size: 6mm-8mm

2.5 Wood Cooler Section

The main machine in this section is counter flow cooler, The function is that cool down pellet feed temperature,by cooler machine can make pellet temperature room temperature+3-5 degree.

This kind of pellet cooler machine make pellet good performance and quality,make pellet temperature lower than the room temperature.It will help you acquire a high output with low energy consumption.

(1) Using the principle of counter flow cooling pellet with high temperature, high humidity, avoid direct contact with cold wind and hot pellet, which can effectively prevent the particles from surface cracking.

(2) Cool pellet temperature not higher than +3℃ at room temperature after cooling,moisture reduce not less than 3.95%.

(3) Cooler with all round, no dead corner, items dropped more uniform on the section, and even cooling, the new rotary distributor ensure material surface height difference is less than 100mm, which make air output same in cooling section and the material even cooling.

(4) Pneumatic discharge compared with conventional, it does not frequently starting motors that cause high energy consumption, saving 80%.

Model: SKLN2.5 Main power: 1.1kw Flap type structure,cooling wood pellet from 60-80 ℃temperature, cooling wood pellet to room temperature +3- 5 ℃.

2.6 Automatic Packing Section

the main machine in the section automatic packing machine. The function is that packing wood pellet as your request.

the finished pellet will pack by Automatic packaging machine. weighing range 25-50kg, package speed 200-400bag/h,

3.Flow Chart for Complete Wood Pellet Production Line

1. for single machine, it will cover plastic film and then packing into a plywood case.
2.If by Container, the machine with plastic film will loading into container and then fixed. If you have special request,we will also pack machine as your request.

Shandong Double Crane Machinery Manufacturer Co., Ltd was found in 2005. It located in Leling town, Dezhou city, Shandong province. Our company is specialized in feed machine, grass machine, chemical machine and organic fertilizer production machine for more than 10 years. and independent innovation and first develop biomass briquetting complete set in China. The main raw material is sawdust, straw, Grain, fiber. etc., In order to ensure the high quality product and make it meet different client requirement, Our company retain well known agricultural experts and skilled engineer to make more new designs and improve the product process.

Our main product contain hammer mill, double shaft/single shaft mixer, plat die/ring die pellet mill,counter flow cooler, different type screener, wood chipper, chaff cutter, airflow drier, and transfer equipment,such as bucket elevator, screw conveyor.Our product is honored with the authoritative certifications, such as SE,GS Safety Certification,ISO9001 Quality Management System Certification,
Our products enjoy extremely high reputation both at domestic market and abroad, such as in South Korea, Vietnam, Philippine,Thailand, Malaysia, Australia, Russia,America, Finland, Spain, Bulgaria,Africa and other countries and regions.

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