Project Brief Introduction:

1.Product:Dried Wood Log Pellet Line

2.Capacity:6-7.5T/Hour

3.TONY Brand 6-7.5Ton /Hour Dried Wood Log Pellet Line Project Process

4.Main Machine: Comprehensive Chipper,Hammer Mill,TONY Pellet MachineTYJ551-Ⅲ-132KW,Pellets Cooler,Packing Machine And Belt Conveyors

5.Total Power: About 920kw

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 working principle of dry wood biomass pellet fuel processing equipment can be summarized as follows: qualified dry wood chips are obtained through crushing and screening pretreatment. The ring die and pressure rollers of the pelletizer apply high pressure, which densifies the wood chips and activates the natural adhesiveness of lignin under the action of frictional heat. Finally, high-density, regularly shaped pellet fuel is formed through cooling and screening. The entire process is mainly based on physical changes and does not require chemical additives. It not only realizes the resource utilization of wood waste, but also produces environmentally friendly and efficient renewable energy.

2. Characteristics of dried wood log biomass pellet processing equipment

(1)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):

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.

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)

(2)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:

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.

Extrusion parameters are adapted to dry materials: The 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.

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

Professional biomass pellet plants purchase dry wood waste (such as waste from wood processing plants and waste wood from building demolition), process it on a large scale through dry wood pellet equipment, and produce standardized pellet fuel (diameter 6-8mm, length 10-30mm), which is supplied to the following fields:

(1) Industrial heating: used for boiler heating in the textile, food, papermaking and other industries, replacing coal or oil, and meeting the environmental protection policy's requirements for "low sulfur and low nitrogen" emissions.

(2) Civil heating: In Europe, North America and other regions, biomass pellets are the mainstream fuel for home fireplaces and small heating stoves; some northern regions in China are also promoting "coal to biomass". Dry wood pellets have become an important choice for civil heating because of their clean combustion (ash content ≤3%) and easy storage.

(3) Power generation: Large biomass power plants purchase a large amount of pellet fuel, generate electricity through dedicated combustion equipment, achieve renewable energy grid connection, and enjoy national new energy subsidy policies.

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: 6-7 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-TFD85*250-250KW, TONY Pellet Machine TYJ551-Ⅲ-132KW, 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 Blades*1set    3.Capacity: 7-10Ton/Hour.	1.To Crush 25-55mm Wood Chips Into 8-14mm Sawdust. 2.Model: TFD85*250-250KW*1set 3.Capacity: 6-7Ton/Hour/Set	1.To Stroage Sawdust Before Pellet Machine; Adjust The Speed Of Sawdust Entering The Pellet Machine 2.Model: TLC-7*1set 3.Capacity6-7Ton/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: TYJ551-III-132KW*3sets 3.Capacity:2-2.5Ton/Hour/Set 4.New 304SS Type	1.To Cool Pellets From 80-90℃ Into 20-30℃ 2.Model: TCN-2.5*1set 3.Capacity:6-7Ton/Hour	1.To Pack Pellets Into 15-50KG/Bags. 2.Model: TPZ-50*1set 3.Capacity: 6-7Ton/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 6 flying 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:6-7Ton/Hour. 

C.TONY brand effective hammer mill TFD85*250-250KW*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:6-7 Ton/Hour. 

C.TONY brand vertical ring die pellet machine TYJ551-III-132KW*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.1 set of TONY galvanized cooler separator with capacity 6-7Ton/Hour                                                      

Main Parts:                                                                                                                                   

(1)TONY's Galvanized Cooler Separator 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.

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.

4.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.

5.Pellet Forming:

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

6.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 made from wood processing waste (such as wood chips, sawdust, and shavings) through crushing, drying, and extrusion. Their main characteristics and advantages are as follows:

1.Stable Physical Form

They are regular cylindrical pellets (typically 6-10 mm in diameter and 20-50 mm in length) with a high density (approximately 1.1-1.3 tons/cubic meter). They are significantly more compact than raw wood chips (which have a density of only 0.1-0.2 tons/cubic meter), making them easier to store, transport, and meter. They are also less prone to moisture absorption and agglomeration.

2.Single Composition and Stable Combustion

Mainly composed of wood cellulose, they contain no impurities such as gangue and sulfur. They produce a stable flame, high thermal efficiency, and low ash content (typically less than 1%) during combustion, minimizing wear and tear on combustion equipment. 

3.Easy to ignite and good flame control.

Compared to fuels like coal and biomass briquettes, wood pellets have a lower ignition point (approximately 200-250°C) and ignite quickly. The combustion intensity can be precisely controlled by adjusting the feed rate, making them suitable for automated combustion equipment (such as pellet stoves and boilers).

4.Excellent environmental performance.

A renewable energy source, the carbon dioxide released during combustion is essentially balanced by the carbon dioxide absorbed during the tree's growth, achieving "carbon neutrality." Furthermore, sulfur and nitrogen emissions are extremely low (far lower than coal), meeting environmental emission standards.