Project Brief Introduction:

1.Product:Dried Wood Log Pellet Line

2.Capacity:7.5-9 T/Hour

3.TONY Brand 7.5-9 Ton /Hour Dried Wood Log Pellet Line Project Process

4.Main Machine: Comprehensive Chipper,Hammer Mill,TONY Pellet MachineTYJ760-Ⅲ-160KW,Pellets Cooler,Packing Machine And Belt Conveyors

5.Total Power: About 1000 kw

6.Need Area: About  480㎡  L: 30M  W: 16M  H: 6.517M

Project Layout For Customer:

1. The working principle of dried wood log biomass pellet processing equipment

The core principle of dry wood biomass pellet processing equipment is to use mechanical extrusion to densify dry wood chips. Frictional heat generated by extrusion activates the natural adhesive properties of lignin, achieving glue-free molding. The entire process relies on low moisture content in the raw material to ensure molding efficiency and pellet strength, appropriate particle size to ensure uniform force distribution, and precise coordination between the ring die and rollers to provide sufficient extrusion pressure and temperature. Ultimately, the loose wood waste is transformed into efficient and clean biomass pellet fuel.

2. Characteristics of dried wood log biomass pellet processing equipment

Strong adaptability to raw materials and targeted optimization of dry material processing

One of the core features of dry wood pellet equipment is the efficient processing of low-moisture raw materials, which is significantly different from equipment that processes high-moisture raw materials (which requires a matching dryer):

(1) No need for a deep drying module:

Since the raw materials themselves are already dry (moisture content ≤15%), the equipment can save the high-energy consumption of drum dryers or air dryers, and only retain a simple humidity control device (such as a spray water replenishment system) to replenish a small amount of water when some materials are too dry (<10%), thereby reducing overall energy consumption.

(2) High crushing and screening accuracy:

Equipped with a dedicated hammer or knife crusher, dry hard wood (such as branches, waste wood boards) can be crushed into uniform wood chips ≤5mm, avoiding excessive powder generation due to the brittleness of dry materials; the screening process uses a multi-layer screen to strictly control the particle size of the raw materials, ensuring that the dry materials are evenly stressed during molding and reducing broken particles. 2. Special design of core equipment (pellet mill)

The pellet mill is the core of the dry wood pellet mill. Its structure and parameters are optimized for the characteristics of dry materials to ensure efficient molding under low moisture conditions:

(1) Wear resistance of ring die and roller:

Dry wood fibers are relatively hard and lack water lubrication. The ring die (inner wall die hole) and roller surface are made of high-hardness alloy material (such as 40CrNiMo) and are carburized and quenched. The wear resistance is improved by more than 30% compared with ordinary pellet mills, reducing the wear of dry materials on the equipment.

(2) Extrusion parameters are adapted to dry materials:

he gap between the roller and the ring die is smaller (usually 0.1-0.3mm), and the extrusion force is greater (up to 80-120MPa), ensuring that dry wood chips are fully compressed under low moisture conditions; at the same time, the ring die speed is slightly lower (300-500r/min), which prolongs the residence time of the material in the die hole, allowing the lignin to be fully softened under frictional heat (100-130℃), compensating for the problem of insufficient adhesion of the dry material.

(3) Feeding uniformity control:

A variable frequency screw feeder is used to monitor the flow of dry materials in the silo in real time through sensors to avoid uneven feeding caused by poor fluidity of dry materials (easy to be suspended or bridged), thus ensuring a stable molding process.

3. Application scenarios of dried wood log biomass pellet processing equipment

The core application scenario for wood pellet processing equipment is converting wood waste into environmentally friendly fuel.

Raw material sources: Sawdust and scraps from lumber processing plants, branches and trunks pruned from forestry farms, wood chips and shavings from furniture factories, and waste wood from building demolition.

Product Applications:

(1) Residential Heating:

Produces clean pellet fuel for fireplaces and home heating stoves, replacing coal and natural gas and reducing pollutant emissions.

(2)Industrial Heating:

Provides boiler fuel for food processing plants, building materials factories (such as tile drying), textile mills, and other facilities, meeting steam and hot water needs for industrial production.

(3) Power Generation:

Used as fuel in biomass power plants, generating electricity that is fed into the grid through combustion, or provides electricity and heat to distributed energy stations (such as villages, towns, and industrial parks).

TONY Brand 7.5-9 Ton/Hour Dried Wood Log Pellet Manufacturing Plant can take dried wood, various types of wood - related biomass materials, such as branches, small - diameter logs, and wood shavings, with dried wood as the main raw material. After pretreatment and processing, it 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: 7.5-9Ton/Hour

2. Raw materials: Dried wood logs , branches, small - diameter logs, twigs, etc.

3. Moisture: Dried type, about 10-15%.

4. Application: All kinds of wood - based biomass materials suitable for pellet production.

Suitable customers: Green energy companies, forestry enterprises, and private wood - processing workshops that have advantages in wood raw materials.

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: Dried Wood Log Pellet Production Line

2. Raw Material: All kinds of Dried wood log

3. Moisture Content of Raw Material: 10-15%

4. Capacity: 7.5-9 tons per hour

5. Process: Crushing Process - Fine Crushing Process - Pelletizing Process - Cooling Process - Packing Process

6. Main Equipment:Comprehensive Chipper TPC1000 - 90KW,Effective Hammer Mill-TFD95*280-280kw, TONY Pellet Machine TYJ760 - Ⅲ - 160kw, Pellet Cooler, Double 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.
Comprehensive Chipper	Effective Hammer Mill	Double Screw Cycling Silo
1.To Grind Wood Logs φ ≤20cm Into25-55mm Wood Chips.    2.Model: TPC1000-90KW With 6 Baldes*1set    3.Capacity: 7-10Ton/Hour.	1.To Crush 25-55mm Wood Chips Into 8-14mm Sawdust. 2.Model: TFD95*280-280KW*1set 3.Capacity: 7.5-9Ton/Hour/Set	1.To Stroage Sawdust Before Pellet Machine; Adjust The Speed Of Sawdust Entering The Pellet Machine 2.Model: TLC-7.5*1set 3.Capacity:7.5-9Ton/Hour/Set
Vertical Ring Die Sawdust Pellet Machine	Galvanized Pellets Cooler	Double Packing Machine
1.To Press Dry Sawdust Into 6-8mm Biomass Pellets 2.Model: TYJ760-III-160KW*3 sets 3.Capacity:2.5-3Ton/Hour/Set 4.New 304SS Type	1.To Cool Pellets From 80-90℃ Into 20-30℃ 2.Model: TCN-4*1set 3.Capacity:7.5-9Ton/Hour	1.To Pack Pellets Into 15-50KG/Bags. 2.Model: TPZ-50*1set 3.Capacity: 7.5-9Ton/Hour

1.Wood Chipping Process:

A.This process is mainly used to grind the wood logs whose diamater is under 20cm into wood chips with size 25-55mm. The finish wood chips size can be adjustable by changing different sizes of screeners and adding flying knives inside the wood chipper.

B.TONY Brand TPC1000-90kw model with 6flying blades type

C.Capacity:7-10Ton/Hour. 

Main Parts:

(1)TONY's Comprehensive Chipper.

(2)Feed And Discharge Belt Frequency Control To Prevent Card Material

(3)Hydraulic System Control Can Be Used For Thicker Materials

(4)Electronic Control System Allows The Equipment To Be Used Normally      

Contact Tony For More Details With Quotation

2.Wood Chips Fine Crushing Process:

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

B.Capacity:7.5-9Ton/Hour. 

C.TONY use  Effective hammer mill TFD95*280-280KW*1set

Main Parts: 

(1)TONY Effective hammer mill

(2)Galvanized Dust Collector.

(3)Sawdust Transportation Fan Blower.

(4)Cyclone With Airlock.

(5)Electrical Cabinets.

3.Pelletizing Process:

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

B.Capacity:7.5-9 Ton/Hour. 

C.TONY Brand Vertical Ring Die Pellet Machine TYJ760-III-160KW*3Sets

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

4.Cooling Process:

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

B.1Set Of TONY Galvanized Cooler Seperator With Capacity 7.5-9 Ton/Hour                                                      

Main Parts:                                                                                                                                   

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

(2)Cyclone And Bags Dust Collectors.  

(3) Fan Blower.

(4)Connect Pipes.

5.Packing Process:

A.This process is mainly used to pack pellets into 15-50KG/Bags. 

B.1 Set of TONY Double Packing Machine.

Main Parts: 

(1)TONY's  Double Packing Machine.

(2)Sew Machine, Buyer Can Also Choose Hot Seal Machine For Chosen,To Confirm With Tony For The Price Difference. 

(3)Bags Transportation Conveyors.

(4)Feeding Inlet Silo.

(5)Electrical Cabinets.

Market Demand

Biomass pellet fuel has a wide range of applications, and the market size continues to grow. Specific demand scenarios include:

1.Industrial boiler fuel:

Many factories require fuel for heating their boilers, and biomass pellets can serve as a clean alternative energy source. Paper mills, food processing plants, and other industries all have related demand, with this sector accounting for over 55% of the market share.

2.District heating:

Clean heating is being promoted continuously, and biomass pellets can be used as a heat source fuel, with a stable annual procurement volume.

3.Biomass power generation:

The demand for pellet fuel is relatively rigid.

Production Process

1.Raw Material Pretreatment:

Dry wood is crushed in a crusher and then refined into a suitable sawdust particle size by a grinder, providing qualified raw material for subsequent pelletizing.

2.Pellet Forming:

The pretreated sawdust is conveyed to the pelletizer, where it is pressed into biomass pellets under high temperature and high pressure.

3.Cooling and Screening:

The newly produced pellets are hot and require cooling equipment to reduce the temperature. Screening machines are then used to remove substandard pellets, ensuring the quality of the finished product. Packaging and warehousing: Qualified biomass pellets are packaged and then sent to the warehouse for storage and sale.

Wood pellets are solid fuels or industrial raw materials made from wood processing waste (such as sawdust, wood chips, scraps, etc.) through crushing, drying, compression molding and other processes. The following are the physical properties of wood pellets.

1.Regular shape and high density.

Usually cylindrical particles with a diameter of 6-12mm and a length of 20-50mm. The structure is dense and the bulk density can reach 600-800kg/m³ (much higher than the 100-200kg/m³ of raw wood chips), which greatly reduces storage and transportation space and reduces logistics costs. High hardness (crushing strength is generally >80%), not easy to break, easy to mechanized handling and automatic feeding (such as automatic feeding systems for boilers and fireplaces).

2.Controllable moisture and strong stability.

The moisture content of the finished pellets is usually controlled at 8%-15% (adjusted according to the purpose). The moisture content is low and uniform, avoiding the problem of mold and rot caused by moisture in the raw wood chips. The storage period can be extended to 6-12 months (under sealed conditions).

Wood pellets have become an important alternative to fossil energy due to their clean, efficient and renewable characteristics. They have been widely used in areas with strict environmental protection requirements (such as Europe and North America).