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1. The working principle of wet sawdust biomass pellet processing equipment

The core principle of wood pellet processing equipment, such as wood chip pellet mills, is to convert biomass feedstock into high-density pellet fuel through mechanical compression. The basic process involves three steps: feedstock pretreatment (drying), mechanical compression, and finished product processing (cooling and packaging). For example, in a ring die pellet mill, a motor connected to a reducer via a coupling drives the ring die. The feedstock enters the compression zone under gravity, where rollers squeeze the material into the ring die holes. After the pellets are formed in the die, they are cut into pellets of fixed lengths by a cutter.

2. Characteristics of wet sawdust biomass pellet processing equipment

(1) The wet sawdust pellet processing equipment is highly efficient and low-consumption, and can quickly process biomass raw materials into fuel pellets, significantly improving production efficiency.

(2) The biomass pellet machine has strong material adaptability and is suitable for molding various biomass raw materials. The pellet machine is equipped with molds of various specifications, and the corresponding mold can be selected for processing according to different biomass raw materials, which enhances the adaptability of processing.

(3) The wet sawdust pellet processing equipment has a mature design, and the finished pellets are stably molded, with stable output and excellent quality.

(4) The biomass pellet processing equipment is simple to operate, easy to use, highly automated, requires less labor, effectively reduces labor intensity, and increases output.

3. Application scenarios of wet sawdust biomass pellet processing equipment

(1)Overview of the Sawdust Processing Biomass Pellets Project

Sawdust is a common waste from agricultural and forestry processing. It is abundant in source and low in cost. Processing it into biomass pellet fuel has significant economic and environmental value. This project processes sawdust through carbonization, fermentation, modification and other processes, combines it with other auxiliary raw materials, and extrudes it into high-density pellet fuel, which can effectively replace fossil fuels, reduce sulfur emissions and improve combustion efficiency.

(2)Product advantages and technical indicators

Core advantages

Environmental protection: The sulfur content is as low as 0.364% (better than the ultra-low sulfur coal standard of 0.5%), and no harmful gas is emitted after combustion.

High efficiency: The calorific value reaches 25.47MJ/kg (high calorific value coal range is 24.01-27.00MJ/kg), and the ash content is 7.59% (low ash coal category).

Economical efficiency: The raw material cost is low (sawdust, agricultural and forestry waste), and the process is simple and easy to operate12.

Key Technical Indicators

Density: 0.943g/cm³, higher than ordinary biomass pellets

Sulfur content: 0.364%, better than ultra-low sulfur coal (≤0.5%)

Combustion calorific value: 25.47MJ/kg, reaching the level of high calorific value coal

Ash content: 7.59%, meeting the standard of low ash coal

(3)Application Prospects

As a renewable energy source, biomass energy can be widely used in industrial boilers, home heating, power generation and other fields, replacing fossil fuels such as coal and gas, and the market demand is growing steadily.

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TONY Brand 48-60  Ton/Hour Wet Sawdust Pellet Manufacturing Plant can take wet sawdust,wood chips, various types of wood - related biomass materials, such as wood pallets ,branches, wood logs, and wood shavings. After pretreatment and processing, wet sawdust 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. 

1. Capacity: 48-60  Ton/Hour

2. Raw materials: Wet sawdust

3. Moisture: Wet type, about 40%.

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

Suitable customers:Wood processing plants, furniture manufacturing plants, construction sites, landscaping companies and other places with advantageous sawdust resources

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

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1. Project Name: Wet Sawdust Pellet Production Line

2. Raw Material: All kinds of wet sawdust

3. Moisture Content of Raw Material: 40%

4. Capacity: 48-60  tons per hour

5. Process: Drying Process - Pelletizing Process - Cooling Process - Packing Process

6. Main Equipment:  Rotary Drum Dryer-3.2*28m, TONY Pellet Machine TYJ860-Ⅲ-280kw, Galvanized Pellets Cooler, Ton Packing Machine and Belt Conveyors

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1.Sawdust Drying Process:

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

B.Capacity:48-60 Ton/Hour.

C.TONY use 5 sets of 3.2*28m  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.

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2.Pelletizing Process:

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

B.Capacity:48-60  Ton/Hour. 

C.TONY brand vertical ring die pellet machine TYJ860-III-280KW*12 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

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3.Cooling Process:

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

B.Capacity:48-60 Ton/Hour.                                                   

C.TONY brand galvanized pellets cooler *5 sets                    

Main Parts:                                                                                                                                   

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

(2)Cyclone And Bags Dust Collectors.  

(3) Fan Blower.

(4)Connect Pipes.

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4.Packing Process:

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

B.Capacity:48-60  Ton/Hour.    

B.TONY band ton packing machine*5 sets

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

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For investors, it is better to give priority to regions with abundant raw materials and strong policy support. By locking in raw material supply, improving production capacity utilization and expanding high-end markets (such as exports and civilian use), the return cycle can be further shortened and rapid profits can be achieved.

Wood Pellet Processing Investment Costs

Equipment Investment: 

Equipment investment varies significantly depending on the project scale and equipment selected. A small semi-automatic production line may cost only tens to hundreds of thousands of yuan, while a large fully automated production line can cost millions or even more.

Plant and Site Costs: 

You need to select an appropriate plant and site based on your production scale. Rental or construction costs vary by region.

Raw Material Procurement and Transportation Costs: Raw material costs are affected by factors such as region, season, and raw material type, while transportation costs are related to the raw material sourcing radius and product sales range.

Environmental and Other Expenses: 

These include the investment and operating costs of environmental protection equipment, utilities, and employee salaries.

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1. Outstanding Environmental Protection and Low Carbon Emissions

Carbon Neutral: Wood pellet fuel is derived from wood processing waste (such as wood chips and sawdust) and is a biomass energy source. The carbon dioxide absorbed during plant growth is roughly balanced by the carbon dioxide released during combustion, making it a "carbon-neutral" energy source, significantly reducing its contribution to the greenhouse effect.

Low Pollutant Emissions: Compared to coal, wood pellets produce extremely low levels of pollutants such as sulfur dioxide and nitrogen oxides (often far below environmental standards) when burned, and dust emissions are also low, effectively reducing air pollution and meeting increasingly stringent environmental regulations.

2. Wide Source of Raw Materials and Controllable Costs

Abundant Raw Materials: The main raw materials are scraps, wood chips, sawdust, branches, and bark generated during wood processing. These materials are readily available and stable in forestry, furniture manufacturing, and papermaking. They can even be "turned waste into treasure," reducing the environmental impact of landfills or incineration. Cost Advantages: The raw materials are mostly industrial waste, resulting in relatively low procurement costs. Furthermore, some regions offer subsidies for biomass energy projects, further reducing production and usage costs. Compared to other energy sources like natural gas and fuel oil, biomass energy is economical.

3. High Combustion Efficiency and Efficient Energy Utilization

High Density: Wood pellets are compressed and formed, resulting in a density significantly higher than that of raw wood or sawdust (typically 1.1-1.3 tons/cubic meter). They are less prone to loosening during combustion, maintaining a stable combustion state and a long-lasting flame. They also offer high thermal efficiency (typically exceeding 85%, compared to the 40%-50% of loose firewood).

Stable Combustion: The pellets have a regular shape and uniform size, facilitating automated feeding and combustion control. They can be precisely adjusted with a matching pellet stove, reducing energy waste and making them suitable for applications requiring a stable heat source.

4. Convenient Storage and Transportation

Small Size: Compressed pellets are only 1/5-1/8 the volume of raw sawdust, significantly saving storage space. They can be stored in bags or in bulk, eliminating the need for specialized storage facilities, making them suitable for homes, businesses, and other environments. Low Transportation Costs: The high density allows for higher energy transport per unit volume, improving transportation efficiency and reducing transportation costs. Furthermore, the pellets are resistant to moisture (some products are treated to prevent moisture), minimizing loss during transportation.

5. Diverse Application Scenarios

Civilian Applications: They can be used for home heating and cooking (using devices such as pellet fireplaces and pellet stoves). They are simple and clean to operate, replacing traditional coal and firewood to improve the indoor environment.

Industrial Applications: They can be used as boiler fuel to provide steam or hot water for factories, hotels, and hospitals. In agriculture, they can be used for greenhouse heating and drying agricultural products (such as grains and medicinal herbs).

Power Generation: They can be used as fuel in biomass power plants, either mixed with coal or burned alone to generate electricity, contributing to the transformation of the energy structure.

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