A vertical carbonization furnace is a batch-type charcoal making machine. It converts logs, wood branches, sawdust briquettes, coconut shells, and other biomass into high-quality charcoal. The machine uses advanced airflow carbonization technology. It processes one batch every 6–8 hours.

The SL-C1500 model produces 2.5–3 tons of charcoal per 24-hour day. It achieves a carbonization rate of 40%–45%. The final product is uniform, fully carbonized, and ready for market. This airflow charcoal furnace operates without external electricity. It uses recycled combustible gases for self-sustaining heat after the first hour.

At present, our batch-type carbonization machines have been put into use in dozens of countries and regions around the world, such as Canada, Tunisia, Myanmar, Brazil, the United Kingdom, and Kenya, and have received widespread praise.

Raw Materials of Vertical Carbonization Furnace

This hardwood charcoal furnace processes diverse feedstocks:

• Hardwood logs (oak, birch, beech, mangrove)
• Wood branches and twigs
• Sawdust briquettes
• Coconut shells and coconut shell briquettes
• Palm shells and nutshells
• Bamboo
• Fruit wood waste

The output charcoal suits barbecue fuel, shisha/hookah charcoal production, activated carbon feedstock, and industrial fuel applications.

Technical Specifications

The above are our standard specifications. We also offer customization services and can provide tailored solutions according to your requirements.

Structure of Airflow Hoisting Carbonization Machine

Outer Furnace

The charcoal furnace, especially the batch-type vertical carbonization furnace, features a unique structural design aimed at achieving efficient and stable carbonization.

The outer chamber is cylindrical and made from thickened steel plates, ensuring durability and strength. The inner wall is lined with refractory bricks, with precisely arranged joints filled using a special heat-resistant adhesive to ensure excellent sealing.

In addition, the furnace is equipped with an insulation layer that retains heat and minimizes energy loss, improving overall carbonization efficiency. The outer surface is treated with anti-corrosion and high-temperature coatings, making it suitable for various working environments. For easy maintenance, the outer chamber includes access openings and detachable structures, allowing for convenient inspection and replacement of the inner chamber.

Inner furnace

The heart of the vertical carbonization equipment lies within the inner furnace, a detachable steel plate container designed for easy loading and unloading.

This internal compartment is designated for accommodating the raw materials slated for carbonization.

Commonly, this encompasses elements like tree branches and sawdust briquettes. In the operational cycle, the vertical carbonization furnace features three standard inner tanks that can be employed in rotations.

Loading box

Beyond direct insertion into the inner furnace, the utilization of a loading box can simplify the material input process. This loading box serves as an effective aid for introducing raw materials.

In real-world scenarios, it is frequently employed for carbonizing sawdust briquettes that possess standardized forms.

Vertical Carbonization Furnace Advantages

• Best carbonization effect: The furnace can operate continuously for 8 to 10 hours, achieving a carbonization rate of 40%–45%. The resulting charcoal is of uniform quality and fully carbonized.
• Gas Recycling for Cost Savings: This vertical carbonization furnace incorporates a gas recycling system that efficiently reuses gases after just one hour, eliminating the need for constant material additions and reducing labor requirements.
• Dual Chambers for Time Efficiency: With its dual inner chambers, this furnace allows continuous production while one chamber is cooling down, significantly saving valuable production time.
• Flexible Fuel Options for Environmental Compliance: This furnace accommodates strict environmental regulations by accommodating various fuel types, ensuring compliance while maintaining efficient operations.

• Robust Design for Heavy-duty Use: Designed to withstand heavy loads, the furnace is equipped with a crane that can bear over two tons, guaranteeing durability and stability during production. Additionally, its high-temperature-resistant internal coating prevents collapse and ensures prolonged use.
• Enhance Revenue Generation: Elevate your earnings with the airflow-hoisting carbonization furnace, which offers the potential to reclaim valuable by-products like wood oil and wood vinegar based on your specific requirements. This not only bolsters your income but also reduces environmental contamination, all while optimizing charcoal production efficiency.
• High output: This furnace is reasonably designed to achieve high production capacity, meeting the demands of large-scale industrial production.

The above are our standard specifications. We also offer customization services and can provide tailored solutions according to your requirements.

Working Principle of Airflow Hoist Charcoal Furnace

The working principle of a hardwood charcoal furnace involves several distinct stages that contribute to efficient carbonization and charcoal production.

Fire Ignition and Initial Heating

The process begins by igniting waste materials before the temperature reaches 90°C. During this phase, a vigorous fire burns, providing the initial heat source required for the subsequent stages.

Temperature Control and Moisture Reduction

Once the temperature reaches 90°C, the fire intensity is reduced. The range between 90°C and 150°C is crucial for moisture reduction. In this phase, the furnace moves into a controlled combustion mode, gradually drying the wood rods or materials.

Carbonization and Gas Generation

As the temperature advances to around 150°C, the furnace enters a drying phase lasting approximately six hours. At this point, the fire intensity increases. Subsequently, at 230°C, the process transitions into an ignition stage, generating a mixture of gases.

By the time the temperature hits 280°C, self-combustion occurs, where carbon monoxide gases produced by the furnace’s carbonization process can be recycled and self-sustained, eliminating the need for external heat sources. The furnace’s bottom door is closed during this phase.

Throughout this process, the furnace’s bottom door may be left open or closed, impacting the overall cycle. The internal temperature of the furnace can peak at around 500°C, ensuring optimal carbonization results.

The complete carbonization process generally takes about 14 hours, followed by a cooling period of more than 10 hours.

The system employs a network of pipes to facilitate gas circulation, combustion, and filtration, ensuring efficient airflow throughout the entire carbonization process.

Application of Vertical Carbonization Furnace in Charcoal Production Line

The vertical carbonization furnace is a key machine in a charcoal production line, converting pretreated wood and agricultural or forestry waste into charcoal through high-temperature, oxygen-limited carbonization. Its compact vertical design saves space and supports efficient batch production.

The furnace uses a gas recovery system to recycle combustible gases generated during carbonization, reducing fuel consumption and operating costs. It can process various biomass materials, including wood waste and agricultural residues.

In a complete charcoal production line, the furnace can work with crushers, dryers, screening machines, and packaging equipment to provide an efficient solution for commercial charcoal production.

Project Cases of Bio Charcoal Machine

Shuliy, with over a decade of expertise, has garnered a solid reputation in the vertical carbonization equipment domain.

Our experience has reached global horizons, spanning numerous countries such as Ghana and Indonesia, where we’ve exported our machinery. Clients worldwide have lauded our solutions, fostering trust and acclaim in our professionalism and reliability.

Improve your hardwood charcoal production with our advanced vertical carbonization furnace. As industry leaders, we stand ready to assist you in achieving efficient and eco-friendly charcoal manufacturing.

Our seasoned expertise and proven solutions make us the go-to partner for your needs. Welcome to connect with us now.

Invest in our high-carbonization furnace

If you’re in search of an efficient and eco-friendly carbonization furnace, look no further than our product. Our hoist carbonization furnace not only ensures continuous and efficient carbonization processes but also delivers outstanding carbonization results with ease of operation.

Additionally, we recommend exploring our horizontal carbonization furnace and continuous carbonization furnace, which offer excellent performance and reliability tailored to various production scales and requirements.

Our sales team is ready to provide personalized recommendations based on your specific needs. Contact us now to learn more and request a quote!

If interested, pls just contact us for details via WhatsApp directly: https://wa.me/+8619139761487

Why Choose Shuliy?

• Custom configuration. We adjust inner stove size, steel thickness, and by-product recovery systems based on your raw material and target output.
• Complete production line supply. Pair this furnace with a wood chipper, sawdust briquette machine, or charcoal packaging machine for a turnkey operation.
• On-site installation and training. Our engineers install the furnace, train your operators, and commission the first production batch at your site.
• 12-month warranty with lifetime support. All mechanical parts are covered. Spare stoves, seals, and refractory components ship within 48 hours.

FAQ

Get a Quote for Your Vertical Carbonization Furnace

The SL-C1500 vertical carbonization furnace is the right choice for charcoal producers who need high output, low operating cost, and simple operation. Whether you process hardwood logs, coconut shells, or sawdust briquettes, this machine delivers consistent 40–45% carbonization rates with minimal fuel input.

Contact Shuliy today. Send us your raw material type and daily target output. We will provide a