1.The working principle of wet wood chips biomass pellet processing equipment

(1)Core Forming: Fiber reorganization and densification through mechanical extrusion is a key step in converting wet wood chips into pellets. The core principle is "high-pressure extrusion + wood fiber self-bonding." Lignin (a natural adhesive that softens under pressure and frictional heat) in the wet wood chips works together with water to tightly bind the fibers, forming pellets with a fixed shape.

(2)Core component: the forming machine—the "ring die pellet machine," which is more adaptable to wet materials and less prone to clogging.

During the extrusion process, intense friction between the sawdust and the inner wall of the die and the surface of the rollers generates frictional heat of 60-90°C. This temperature softens the lignin in the wood chips (the softening point of lignin is approximately 70-100°C). Simultaneously, the water forms "liquid bridges" that bind the dispersed fibers together, providing a foundation for subsequent shaping.

2.Characteristics of wet wood chips biomass pellet processing equipment

(1)High efficiency and energy saving: The wet wood chip pellet machine can process waste materials such as sawdust into pellet fuel, which not only reduces environmental pollution but also realizes the recycling of resources and greatly improves energy utilization efficiency. 

(2)Multifunctionality: In addition to processing biomass fuel, the wet wood chip pellet machine can also process animal feed, organic fertilizer, etc., and is widely used in agriculture, breeding and other fields. 

(3)Advanced pelletizing technology: The wet wood chip pellet machine adopts advanced pelletizing technology, which can automatically control parameters such as water addition and temperature during the pelletizing process, greatly reducing production costs and making the production process more economical and environmentally friendly.

(4)High-quality components: The main shaft and the connected hollow shaft of the wet wood chip pellet machine are made of alloy structural steel imported from Germany through water forging, rough turning, heat treatment, fine turning and fine grinding. The reasonable structure and uniform hardness improve the fatigue resistance and wear resistance of the components, providing more reliable guarantee for safe operation.

3.Application scenarios of wet wood chips biomass pellet processing equipment

(1)Biomass power generation/heating enterprises

Typical scenarios: Biomass power plants and industrial boilers (such as heating boilers in textile factories and food factories) require a large amount of stable pellet fuel

(2)Small and medium-sized heating/drying users

Typical scenarios: Rural heating stations, agricultural product drying plants (such as grain, fruit and vegetable drying), greenhouse heating; processed pellets are directly stored in the silo of the heating station and can be taken out as needed.

(3)"Self-circulating" processing in orchards/tea gardens

Typical scenarios: After being processed into pellets, they can be used as fuel for the orchard's "biomass hot air furnace" (for fruit tree frost protection and fruit drying), or crushed and buried in the soil to improve soil quality, realizing "self-circulating waste in the park";

(4)Environmental protection and solid waste treatment fields

Typical scenarios: Urban solid waste treatment plants (sorted wet wood waste), garden waste treatment stations (wet branches, wet shrub slices)

TONY Brand 20-25Ton/Hour Wet Wood Chips Pellet Manufacturing Plant can take wet wood chips, various types of wood - related biomass materials, such as wood pallets ,branches, wood logs, and wood shavings. After pretreatment and processing, wet wood chips is solidified into high - density wood pellet fuel. This fuel is an ideal substitute for coal and oil and plays a role in energy conservation and emission reduction. At present, it has been widely used in regions rich in wood resources.

1. Capacity: 20-25Ton/Hour

2. Raw materials: Wet wood chips

3. Moisture: Wet type, about 40%.

4. Application: All kinds of  wood chips or more waste wood raw materials

Suitable customers: Solid wood furniture production, artificial board processing (plywood, fiberboard, particleboard), wood component processing, construction and decoration, packaging and logistics, such as pallets and wooden boxes, will generate a large amount of waste wood chips due to repeated use, size mismatch or changes in cargo transportation needs. Paper and pulp production where waste wood chips have advantages

5. Finished Pellets Markets: Large power plants ,domestic heating, industrial heating, combustion heat, heating systems, boiler rooms, school canteens, foundry heat sources.

1. Project Name: Wet Wood Chips Pellet Production Line

2. Raw Material: All kinds of wet wood chips

3. Moisture Content of Raw Material: 40%

4. Capacity: 20-25 tons per hour

5. Process:  Fine Crushing Process -Sawdust Storage Process- Drying Process - Pelletizing Process - Cooling Process - Packing Process

6. Main Equipment: Effective Hammer Mill-TFD75*160-160KW, TONY Large Hydraulic Storage Silo,Rotary Drum Dryer-2.2*24m,  TONY Pellet Machine TYJ860-Ⅲ-280KW, Pellet Cooler, Ton Packing Machine and Belt Conveyors

Next, TONY Will Introduce To You All The Necessary Machinery That Will Be Used For The Whole Pellet Production Line. Some Machines Can Be Custom - Made By Customers According To Different Customers' Detailed Demands. Contact TONY For More Details, Including Quotation And Layout.
Effective Hammer Mill	Large Hydraulic Storage Silo	Rotary Drum Dryer
1.To Crush 25-55mm Wood Chips Into 8-14mm Sawdust. 2.Model: TFD75*160-160KW*4sets 3.Capacity: 5-6Ton/Hour/Set	1.To Storage Sawdust Before Dryer Control Sawdust Flow Entering The Dryer Model: TCY-35*2sets 2.TONY Uses Galvanized Material	1.To Dry The 40% Sawdust Into 10-15% Sawdust.   2.Model: THGD2.2*24*4sets 3.Capacity:6-7Ton/Hour/Set
Vertical Ring Die Pellet Machine	Galvanized Pellets Cooler	Ton Packing Machine
1.To Press Dry Sawdust Into 6-8mm Biomass Pellets 2.Model: TYJ860-III-280KW*5sets 3.Capacity:4-5Ton/Hour/Set 4.New 304SS Type	1.To Cool Pellets From 80-90℃ Into 20-30℃ 2.Model: TCN-10*1set 3.Capacity:20-25Ton/Hour	1.To Pack Pellets Into 1 Ton/Bags. 2.Model: TBD*1set 3.Capacity: 20-25 Ton/Hour

1.Wood Chips Fine Crushing Process:

A.This process is mainly used to crush 25-55mm wood chips into 8-14mm sawdust.

B.Capacity:20-25Ton/Hour. 

C.TONY brand effective hammer mill TFD75*160-160KW*4sets

Main Parts: 

(1)TONY Effective Hammer Mill.

(2)Galvanized Dust Collector.

(3)Sawdust Transportation Fan Blower.

(4)Cyclone With Airlock.

(5)Electrical Cabinets.

2.Sawdust Storage Process:

A. This process is mainly used to storage the sawdust that comes out of the hammer mill.It is hydraulic galvanized storage bin which is more stalbe and sawdust in it is not easy to be blocked. 

B. TONY brand sawdust storage to storage the sawdust that comes out of  the hammer mill.This process can be optional by customer.If customer do not chose the storage bin,he can storage the sawdust on the ground directly which may need some labour.

Main Parts:

(1)TONY's New Sawdust Storage Bin.

(2)With Screws Inside The Storage Bin To Prevent Sawdust Blocked.

3.Sawdust Drying Process:

A.This process is mainly used to dry the sawdust from 40% to 10-15%.

B.Capacity:20-25Ton/Hour.

C.TONY use 4 sets of 2.2*24m  rotary drum dryer for this process, TONY hot blast stove is made of firebrick pan, shell with H steel plate as the frame.  There are 3 layers of fire blocking device inside, which can effectively prevent the fire from entering the tumble dryer.Customers can choose to use waste wood, biomass pellets, natural gas, etc. as fuel for the hot air furnace

TONY dryer use spiral tube material, and is not easy to deform.

Unlike other manufacturers with iron plate splicing welding, very easy to deformation.

Main Parts:

(1)TONY's Rotary Drum Dryer Main Body.  (Reducers With Motors and Pips.)

(2)TONY's  Hot Stove.

(3)Fan Blower+Cyclone With Airlock.

4.Pelletizing Process:

A.This process is mainly used to to product pellets into φ6-8mm.

B.Capacity:20-25 Ton/Hour. 

C.TONY brand vertical ring die pellet machine TYJ860-III-280KW*5sets

D.Double screw cycling silo is added above the pellet machine, which has the advantages of saving space, saving labor, intelligently controlling the feeding speed, not easy to block the material, and improving production efficiency.

Main Parts:

(1)TONY's New Vertical Ring Die Pellet Machine.

(2)Cyclone And Bags Dust Collectors. 

(3)Automatic Lubrication System.

(4)Electrical Cabinets. 

You can chose TONY new type SS304 pellet machine

5.Cooling Process:

A.This process is mainly used to cool pellets from 80-90℃ to 20-30℃  

B.Capacity:20-25Ton/Hour.                                                   

C.TONY brand galvanized cooler separator*1set                    

Main Parts:                                                                                                                                   

(1)TONY's Galvanized Cooler Separator With Vibrating Screen.

(2)Cyclone And Bags Dust Collectors.  

(3)Fan Blower.

(4)Connect Pipes.

6.Packing Process:

A.This process is mainly used to pack pellets into 1Ton/Bags. 

B.TONY ton packing machine*1set

Main Parts: 

(1)TONY Ton Packing Machine

(2)Electronic Platform Scale Metering System

(3)Automatic Tare, Zero, and Drop Correction Functions

(4)Feeding System Features Fast, Medium, and Slow Feeding Speeds to Ensure Measuring Accuracy

The wet wood chip biomass pellet project is an environmentally friendly project focused on resource utilization of agricultural and forestry waste. Using wet wood chips with a moisture content of 15%-35% as its core raw material, it is converted into high-density biomass pellets using specialized equipment. This project aligns with the "dual carbon" goals and the development of green energy, offering both economic and ecological value.

The project's raw material supply is stable and low-cost, primarily derived from agricultural and forestry waste, such as sawdust from wood processing plants, wet branches left over from logging, and wet fruit tree branches from orchard pruning. Careless disposal of these raw materials can cause environmental pollution. By recycling these materials, the project not only addresses solid waste disposal challenges but also eliminates the additional costs of drying and storing raw materials. Some regions offer subsidies for agricultural and forestry waste recycling, further reducing raw material inputs and increasing project profitability.

Wet wood chip biomass pellets are a biomass fuel made from wet wood chips with a moisture content of 15%-35%. Their adaptability to wet raw materials and comprehensive advantages make them highly valuable in the energy sector.

First, the raw material is readily available and cost-effective. Wet wood chips come from a wide range of sources, including sawdust from lumber processing plants, wet branches leftover from logging, and wet fruit tree branches from orchard pruning. These raw materials are mostly agricultural and forestry waste, requiring no additional drying or storage; they can be directly recycled for processing, significantly reducing the time and cost of drying and airing raw materials. Some regions also offer subsidies for agricultural and forestry waste recycling, further reducing raw material inputs and improving project economics.

Second, they offer significant environmental benefits, contributing to low-carbon development. Wet wood chips, if randomly piled, can rot, stink, breed mosquitoes, or generate large amounts of smoke and carbon emissions when burned. However, processing them into pellets can achieve "waste resource utilization," with a solid waste utilization rate exceeding 95%. When pellets are burned, carbon emissions are over 55% lower than coal, and no pollutants such as sulfides and heavy metals are emitted, meeting the "dual carbon" goals. They also reduce landfill volume, alleviate environmental pressure, and offer the dual environmental benefits of solid waste treatment and clean energy.