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

Biomass pellets are a clean and environmentally friendly new energy source. The core of their production is to convert dry wood chips into high-density columnar pellets through specialized equipment. The entire processing process involves three core steps: raw material pretreatment, extrusion molding, and cooling and screening. It involves the coordinated operation of multiple specialized equipment. The principles and performance of each step directly determine the quality and production efficiency of the finished pellets.

2.Characteristics of dried wood chips biomass pellet processing equipment

(1)Combination of forced extrusion and high-temperature shaping:The pellet machine uses a high-pressure roller-die system (the die speed is usually 150-300r/min and the extrusion pressure can reach 50-100MPa) to force the material to extrude. At the same time, the friction heat generated by the extrusion (raising the material temperature to 80-120℃) can soften the lignin in the dry wood chips. Lignin, as a natural adhesive, can melt at high temperatures and bond the fibers together, solving the problem of dry wood chips being "difficult to shape and easy to loosen", ensuring that the pellet density reaches 1.1-1.3g/cm³ (in line with industrial fuel standards).

(2)Customized die hole and roller parameters:According to the fiber length and hardness of dry wood chips, the ring die hole is designed as a conical inlet + cylindrical channel (the inlet cone angle is 15°-30°, which facilitates the entry of dry wood chip fibers and reduces clogging of the hole). The die hole diameter is mostly 6-10mm (adapting to the mainstream specifications of dry wood chip particles); the roller surface adopts spiral teeth or diamond patterns to enhance the grip of dry wood chips, avoid "slipping" caused by material drying, and improve feeding uniformity.

(3)Wear-resistant materials extend service life:Dry wood chips (especially hardwood) cause greater wear on the equipment. The ring die and roller are made of high chromium alloy (such as Cr26) or carburized quenched steel, with a surface hardness of HRC58-62, strong wear resistance, and a single service life of up to 1000-3000 hours (depending on the hardness of the wood chips), reducing the cost of frequent replacement of parts.

(4)Automation control:Equipped with a PLC control system to automatically adjust the equipment's operating status (e.g., automatically reduce feed when pellet machine pressure is too high), reducing manual intervention.

(5)Continuous production: Each device is connected through a conveyor belt and a screw conveyor, and can achieve "one-button start, continuous operation" from dry wood chip feeding to finished pellet packaging, adapting to industrial-scale processing needs.

(6)Dust control:The crushing and screening process of dry wood chips easily generates dust. The equipment is equipped with a bag dust collector (dust removal efficiency ≥ 99%), and sealing devices are installed at the feed and discharge ports to reduce dust overflow.

(7)Safety protection:Pellet machines, crushers and other high-speed running equipment are equipped with "emergency stop buttons + protective covers" to prevent safety accidents caused by equipment overload and overheating;

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

(1)Biomass power generation: Biomass pellets can be used as fuel in biomass power plants to produce electricity.

(2)Boilers and fireplaces: Biomass pellets can be used in industrial boilers and home fireplaces to provide heat. 

(3)Household appliances: Biomass pellets can be used as fuel for home heating equipment to provide a clean heat source.

(4)Replacement of traditional fossil fuels: Biomass pellets, as a renewable biomass clean energy, can reduce dependence on traditional energy sources such as coal, oil, and natural gas, helping to significantly reduce greenhouse gas emissions, reduce carbon emissions, and reduce air pollution.

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TONY Brand 24-30Ton/Hour Dried Wood Chips Pellet Manufacturing Plant can take dried wood chips, various types of wood - related biomass materials, such as wood pallets ,branches, wood logs, and wood shavings. After pretreatment and processing, dried 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: 24-30Ton/Hour

2. Raw materials: Dried wood chips

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

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 chip resources are advantageous.

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: Dried Wood Chips Pellet Production Line

2. Raw Material: All kinds of dried wood chips

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

4. Capacity: 24-30 tons per hour

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

6. Main Equipment: Effective Hammer Mill-TFD85*220-220KW, TONY Large Hydraulic Storage Silo, TONY Pellet Machine TYJ860-Ⅲ-280KW, Galvanized Pellets Cooler, Ton Packing Machine and Belt Conveyors

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1.Wood Chips Fine Crushing Process:

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

B.Capacity:24-30Ton/Hour. 

C.TONY brand effective hammer mill TFD85*220-220KW*4sets

Main Parts: 

(1)TONY Effective Hammer Mill.

(2)Galvanized Dust Collector.

(3)Sawdust Transportation Fan Blower.

(4)Cyclone With Airlock.

(5)Electrical Cabinets.

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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.

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3.Pelletizing Process:

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

B.Capacity:24-30Ton/Hour. 

C.TONY brand vertical ring die pellet machine TYJ860-Ⅲ-280KW*6sets

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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4.Cooling Process:

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

B.Capacity:24-30Ton/Hour.                                                   

C.TONY brand galvanized pellets cooler separator*2sets                    

Main Parts:                                                                                                                                   

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

(2)Cyclone And Bags Dust Collectors.  

(3)Fan Blower.

(4)Connect Pipes.

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5.Packing Process:

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

B.Capacity:24-30Ton/Hour.

C.TONY brand ton packing machine*2sets 

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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The dry wood chip processing biomass pellet project is an environmentally friendly project that relies on the conversion of agricultural and forestry waste (such as dry wood chips made from wood processing scraps, waste wood, etc.) into clean biomass energy, with both economic value and ecological benefits. The core of the project is to process dry wood chips into high-density pellet fuel (mainly used in industrial boilers, biomass power generation, home heating, etc.) through specialized equipment. Its implementation requires systematic planning of five core links: project feasibility, process design, equipment selection, cost-benefit, and risk control. 

1.Project feasibility analysis:clarify the premise and market basis.

Feasibility is the core premise for project launch and needs to be evaluated from three aspects: raw material supply, market demand, and policy environment. 

(1)Raw material supply: ensure the "source stability" of the project.

(2)Market demand: lock in target customers and pricing.

(3)Policy environment: enjoy environmental protection and industrial support.

2.Project process design:standardize the process to ensure efficiency and quality.

The process of processing dry wood chips into biomass pellets should follow the "pretreatment → molding → post-processing" principle. The core logic of the process is that process standardization is the key to ensuring stable product quality and reducing losses. 

(1)Pre-processing stage: ensuring that dry wood chips meet molding requirements.

(2)Core molding stage: the key to determining pellet quality. 

(3)Post-processing stage: ensuring storage and transportation stability. 

3.Equipment selection and plant planning:matching production capacity and cost.

(1)Equipment selection: configuration according to production capacity gradient. 

(2)Plant planning: meeting production process and environmental protection requirements.

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Wood pellets have a wider range of applications than traditional loose wood chips, meeting energy needs across various sectors: industrial, residential, and power generation.

1.Industrial:

As a fuel for industrial boilers (e.g., in the food processing, textile, and chemical industries), they replace coal and natural gas, reducing energy costs. Some high-purity pellets can also be used in biomass gasification power generation and heating projects.

2.Residential:

Suitable for home biomass fireplaces and heating stoves for winter heating. They burn odorlessly and produce minimal smoke, making them cleaner than coal and more economical than electricity (especially in rural areas of northern China, where they are widely used under the "coal to biomass" policy).

3.Power generation:

Large-scale biomass power plants use wood pellets as their core fuel, directly burning them to generate electricity and connect them to the grid. They are an important supplement to renewable energy generation (e.g., some power plants in Europe and China have already implemented them on a large scale).

4.Other applications:

Wood pellets can also be used as animal bedding (water absorption and deodorization), as an auxiliary material for organic fertilizer fermentation, and as a filler in new building materials (such as lightweight insulation), expanding their non-energy applications.

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