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

 The working principle of wet wood log biomass pellet processing equipment ,The equipment system for processing logs into biomass pellets is a complete set of equipment that transforms lumpy logs into dense pellets through a series of physical processes. Its core principle is a continuous "crushing - drying - forming" process. Each stage of the process works synergistically to transform the raw material's form and properties.Overall Principle and Logic: Logs → (crushing) → Wood chips → (crushing) → Wood chips → (drying) → Qualified wood chips → (pelleting) → Hot pellets → (cooling + screening) → Finished pellets.

2. Characteristics of wet wood log biomass pellet processing equipment

(1) Strong adaptability to raw materials, compatible with various types of biomass

 Broad spectrum processing capability: Processable raw materials include wood (logs, wood chips, sawdust), crops (straw, rice husks, corn cobs), herbs (reeds, forage grass), etc. By adjusting the crushing and pulverizing parameters, it can adapt to raw materials of different hardness and fiber content (for example, hardwood requires stronger crushing capacity, and straw needs to control the pulverization particle size to prevent agglomeration).

 Clear requirements for raw material pretreatment: The raw material moisture content must be controlled at 8%-15% (too high will easily cause adhesion and mold clogging, too low will result in insufficient particle strength), and the particle size is usually required to be 1-3mm. Therefore, the equipment system often integrates drying and screening modules to ensure that the raw materials meet the standards. 

(2) Modularization of core equipment and continuous production process

Modular combination: A typical production line consists of "crushing equipment (coarse crushing) → grinding equipment (fine crushing) → drying equipment (humidity control) → granulating equipment (molding) → cooling equipment (cooling) → screening equipment (selection) → packaging equipment". Each module can be flexibly increased or decreased according to production capacity requirements (for example, some auxiliary equipment can be omitted for small production lines).

Continuous operation: Through the connection of various links such as conveyor belts and screw feeders, automated continuous production from raw material input to finished product output is achieved. The hourly production capacity of a single production line can be from several hundred kilograms to

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

(1) Wood processing enterprises

Furniture factories and board factories produce a large amount of wet sawdust and scraps (moisture content 40%-50%). They are processed into pellets through supporting processing equipment and directly used as fuel for the factory's boilers (for heating and drying boards), realizing "waste resource utilization" and reducing the cost of purchasing energy.

(2) Forestry bases

Wet branches and trunks (moisture content 50%-60%) produced after forestry felling are crushed, dried and pelletized nearby in the forest area through mobile processing equipment, avoiding long-distance transportation of wet materials (high transportation costs and easy to rot). The pellets can be exported to biomass power plants or heating companies.

(3) Biomass pellet plants

In order to expand the source of raw materials (reduce dependence on dry materials), professional pellet plants are equipped with wet wood processing equipment to process the purchased wet wood waste and produce pellets that meet industrial standards (calorific value 18-22 MJ/kg) for supply to customers such as industrial boilers and distributed power stations. 

(4) Agricultural and forestry circular economy projects

In the “Agricultural and forestry waste resource utilization” project, wet wood (such as fruit tree pruning branches, straw and wood mixed waste) is processed into pellets for use in rural central heating, home heating, or as an auxiliary fuel for organic fertilizer production (replacing coal and reducing pollution).

TONY Brand 36-45Ton/Hour Wet Wood Log Pellet Manufacturing Plant can take wet wood, various types of wood - related biomass materials, such as branches, small - diameter logs, and wood shavings, with wet 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:36-45 Ton/Hour

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

3. Moisture: Wet type, about 40%.

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: Wet Wood Log Pellet Production Line

2. Raw Material: All kinds of wet wood Log

3. Moisture Content of Raw Material: 40%

4. Capacity: 36-45 tons per hour

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

6. Main Equipment: Comprehensive Chipper TPC1600-1000-315KW, Effective Hammer Mill-TFD100*200-315KW, TONY Large Hydraulic Storage Silo,Rotary Drum Dryer-3.2*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.
Comprehensive Chipper	Effective Hammer Mill	Large Hydraulic Storage Silo	Rotary Drum Dryer
1.To Grind Wood Logs φ ≤40cm Into25-55mm Wood Chips.   2.Model: TPC1600-1000-315KW With 6 Blades*3sets   3.Capacity:36-45Ton/Hour.	1.To Crush 25-55mm Wood Chips Into 8-14mm Sawdust. 2.Model: TFD100*200-315KW*4sets 3.Capacity: 9-12Ton/Hour/Set	1.To Storage Sawdust Before Dryer Control Sawdust Flow Entering The Dryer Model: TCY-30*4sets 2.TONY Uses Galvanized Material	1.To Dry The 40% Sawdust Into 10-15% Sawdust.  2.Model: THGD3.2*24*4sets 3.Capacity: 9-12Ton/Hour/Set
Vertical Ring Die Sawdust Pellet Machine	Galvanized Pellets Cooler	Ton Packing Machine	Belt Conveyor
1.To Press Dry Sawdust Into 6-8mm Biomass Pellets 2.Model: TYJ860-III-280KW*9sets 3.Capacity:4-5Ton/Hour/Set 4.New 304SS Type	1.To Cool Pellets From 80-90℃ Into 20-30℃ 2.Model: TCN-10*3sets 3.Capacity:36-45Ton/Hour	1.To Pack Pellets Into 1 Ton/Bags. 2.Model: TBD* 3sets 3.Capacity: 36-45 Ton/Hour	1.To Transport Wood Chips,Sawdust,Pellets. 2.Width: 80cm*28sets 3.Capacity:Designed With The Whole Line

1.Wood Chipping Process:

A.This process is mainly used to grind the wood logs whose diamater is under 40cm 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 comprehensive chipper TPC1600-1000-315KW model with 6 flying blades type:

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:36-45Ton/Hour. 

C.TONY effective hammer mill TFD100*200-315KW*4Sets

Main Parts: 

(1)TONY Effective Hammer Mill.

(2)Galvanized Dust Collector.

(3)Sawdust Transportation Fan Blower.

(4)Cyclone With Airlock.

(5)Electrical Cabinets.

3.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. The customer chooses one 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.

4.Sawdust Drying Process:

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

B.Capacity: 36-45 Ton/Hour.

C.TONY use 4 sets of 3.2*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.

5.Pelletizing Process:

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

B.Capacity:36-45Ton/Hour. 

C.TONY brand vertical ring die pellet machine TYJ860-III-280KW*9 sets

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

6.Cooling Process:

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

B.3 sets of TONY galvanized cooler separator                                        

Main Parts:                                                                                                                                   

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

(2)Cyclone And Bags Dust Collectors.  

(3)Fan Blower.

(4)Connect Pipes.

7.Packing Process:

A.This process is mainly used to pack pellets into 1ton/bags. 

B.3 sets of TONY ton packing machine

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

Project Background and Project Objectives

1.Project Background

Amidst the global efforts to address climate change and promote sustainable development, the development and utilization of clean energy has become crucial. Biomass energy, as a clean, renewable energy source, has garnered widespread attention. Wood pellets, made from wood processing residues (such as sawdust, shavings, and scraps) processed using specialized equipment, are pelletized fuel. They offer high calorific value, low pollution, and are easily stored and transported. They are widely used in industrial boilers, residential heating, and biomass power generation, and hold promising market prospects. Furthermore, developing wood pellet projects will help improve the comprehensive utilization of wood resources and reduce environmental pollution from waste, resulting in significant economic, environmental, and social benefits.

2.Project Objectives

This project aims to build an advanced, efficient, and environmentally friendly wood pellet production line. Through rigorous quality control and market expansion, the product will be introduced to various industrial and residential sectors. While meeting market demand for clean energy, it will also generate positive economic returns for the company and contribute positively to local green development.

3.Project Advantages

Wood processing biomass pellet investment projects have good development prospects and economic benefits

(1) Policy Support:Under the background of the "Dual Carbon" strategy, the country encourages the development of renewable energy. Biomass pellets, as a clean fuel, are in line with the direction of energy transformation and may receive support from policy subsidies, tax incentives, etc.

(2) Abundant Raw Materials:Scraps, sawdust, shavings, etc. generated during wood processing, as well as forestry waste such as logging residues, can all be used as raw materials for the production of biomass pellets. They are widely available and relatively low in cost.

(3) Large Market Demand:Biomass pellets can be used in industrial boilers, heating, biomass power plants, etc. With the improvement of environmental protection requirements, the use of traditional fossil fuels is restricted. As an alternative energy source, the market demand for biomass pellets continues to grow.

(4) Significant Economic Benefits:According to market research, the net profit per ton of pellets is very considerable, and the return on investment is high.

Combustion characteristics of wood pellets

1.Clean and environmentally friendly, with low pollutant emissions

As a biomass energy source, carbon emissions during combustion are close to "carbon neutral" (the CO₂ absorbed during the growth process of wood is basically balanced by the CO₂ released during combustion), which can reduce greenhouse gas emissions by more than 70% compared to coal.

The sulfur and nitrogen content is extremely low (usually sulfur <0.05%, nitrogen <0.1%), and almost no sulfur dioxide and nitrogen oxides are produced during combustion. No complex desulfurization and denitrification equipment is required, and it meets environmental emission standards (such as EU EN 14961-2 standard).

The ash content is low (high-quality wood pellets have an ash content of <0.5%), and there is little residue after combustion, which reduces the frequency of ash cleaning and waste residue treatment costs. 

2.High combustion efficiency and stable thermal energy.

The low calorific value is generally 16-19MJ/kg (approximately 3800-4500 kcal/kg), close to that of medium-quality coal (4000-5000 kcal/kg), but it burns more completely (burnout rate > 95%) and can achieve a thermal efficiency of over 85% (much higher than the 50%-60% of direct combustion of loose wood chips).

The combustion process is stable and the flame is uniform, making it suitable as a continuous fuel for boilers, fireplaces, and biomass power plants. The energy supply can be precisely adjusted through an automatic control system.