Dingli Biomass Pellets Torrefaction Machine is developed to convert densified “white” biomass pellets into “black” torrefied pellets. The complete torrefaction plant is designed and built by our company, while the torrefaction reactor and the process adopt the patented technology from our strategic partner. The technology provides the opportunity to torrefy “white” biomass pellets directly with minimal dust and small particles, thus safeguarding the quality of torrefied “black” pellets to meet international standard, while optimizing the overall energy consumption of the complete plant.

 

We have a design and research team that leverages the newest technologies to bring compact and highly convenient solutions to a wide range of users.

Our unique design and compact torrefied pellet machine can help you torrefy your white biomass pellets without causing significant pollution. This makes our machines eco-friendly and meets the global standards in terms of pellets and machine quality. Our machines also consume comparatively low energy.

Superior Performance of Torrefied Wood PelletsWith a higher energy density, less water content, pure composition, torrefied wood pellet has a lot of advantagescomparing with wood pellets and even coal.

1. With a higher energy density, torrefied wood pellets performs more efficiently than common wood pellets inpower plant to replace coal.

2. With less water content, it is not easy to get damp, thus to save longer.

3. Torrefied wood pellet is a carbon neutral product. No polluting gases is be released during its burning.

4. After torrefied, biomass materials turn out to have a higher grindability index and they are easier to pelletizeby biomass pellet mill.

5. More dense, the shipping cost of torrefied wood pellets is less than that of wood pellets.

01

Raw material

02

Crushed

03

Drying

04

Carbonization

Raw material

Carbonization equipment which can carbonize coconut shell, walnut shell, apricot shell, hemp pole, sawdust, sawdust, rice husk, bamboo, eucalyptus, mushroom residue, medicine residue, furfural residue, coffee residue, palm shell, peanut shell and sunflower seed shell in the carbonization machine under high temperature conditions.

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Crushed

Raw materials are heated in a carbonization furnace under oxygen‑limited conditions. The organic matter undergoes pyrolysis, removing volatile components, and finally forming solid biomass charcoal. The carbonization temperature and holding time directly affect the quality of finished charcoal.

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Drying

The charcoal powder is mixed with an appropriate amount of binder, and extruded by a briquette machine under high pressure to form regular charcoal sticks or charcoal blocks. The density and molding rate of the finished product can be controlled by adjusting the pressure and feeding speed.

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Carbonization

Raw materials with high moisture content need to be dried first. The drying system removes free water in the material to ensure that the moisture is controlled within 8‑12%, which avoids cracking and poor molding during subsequent carbonization and briquetting processing.

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It consists of torrefaction reactor (without counting the upper and lower hoppers), a white biomass pellets feeding system, a hot gas distribution system, a heating system, a cooling system and an Artificial Intelligence (AI) powered process control system with internet access.

01 Screw Conveyor

The screw conveyor is used for sealed and continuous feeding of raw materials into the carbonization system. It ensures stable material transfer while preventing air leakage during operation.

02 Carbonization Machine

The carbonization machine is the core unit of the system, where organic materials are thermally decomposed under controlled conditions. Through continuous heating, volatile components are released and converted into combustible gas, producing high‑quality charcoal.

03 Cyclone

The cyclone separates solid particles from the hot gas generated during carbonization. It removes coarse charcoal powder, protecting downstream equipment and improving system stability.

04 Charcoal Powder Cooler

The charcoal powder cooler reduces the temperature of collected charcoal powder. Controlled cooling prevents spontaneous combustion and facilitates safe handling and storage.

05 Washing Tower

The washing tower is used to clean carbonization gas by removing dust and tar components. It improves gas quality and reduces pollutant emissions.

06 Condensing Tower

The condensing tower cools the carbonization gas to condense tar and moisture. This step enables effective recovery of by‑products and further gas purification.

07 Circulating Cooling Pool

The circulating cooling pool supplies cooling water for the washing and condensing systems. It enables closed‑loop water circulation, reducing water consumption and supporting continuous operation.

Model Diameter(mm) The drum length(m) Carbon capacity(kg/h) Drum speed(rpm) Dimension(m)
DLTJ1010 1000 10 100-200 1.5-2.5 10.0*1.7*2.8
DLTJ1210 1200 10 200-300 1.5-2.5 10.0*2.0*3.0
DLTJ1410 1400 10 400-500 1.5-2.5 10.0*2.2*3.2
DLTJ1612 1600 12 600-800 2.0-3.0 10.0*2.4*3.5
DLTJ1912 1900 12 900-1100 2.0-3.0 12.0*2.8*3.8
DLTJ2212 2200 12 1200-1500 2.0-3.0 12.0*3.2*4.2
DLTJ2512 2500 12 1600-2000 2.0-3.0 12.0*3.5*4.5
DLTJ3012 3000 12 2200-2600 2.0-3.0 12.0*4.0*5.0
DLTJ3612 3600 12 3000-3800 2.0-3.0 12.0*4.6*5.6

Service Advantage

Selling is not the end. True service has just begun.

Equipment Advantages

01

Strong Material Adaptability

Capable of carbonizing biomass with moisture content below 20% and particle size under 30mm, suitable for a wide range of common biomass types.

02

High‑Quality Carbon Output

Produces high‑quality carbon with excellent carbonization rate. The resulting carbon products can be used not only as fuel, but also as raw materials for agricultural carbon, metallurgical carbon, and activated carbon.

03

Precise Carbonization Control

Strong carbonization depth control capability. The residual volatile matter of the final charcoal can be precisely adjusted between 10‑25% according to different industrial requirements.

04

Safe & Environmentally Friendly Operation

Enables adjustable carbonization depth and volatile content to meet varied industrial requirements while maintaining high carbonization efficiency.

Related Cases

From solution design to equipment manufacturing, and on-site installation and commissioning, we deliver comprehensive one-stop services. Our equipment has been successfully exported to over 100 countries and regions, including the UK, Russia, Malaysia, the Philippines, Italy, Israel, Indonesia, Ethiopia, Nigeria, Congo, South Africa, Pakistan, India, Egypt, and many others. We look forward to partnering with you. Below are the project site of our valued clients.

One-Stop Solutions

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