Rotary Carbonizer, 24 Hours Working Biomass Rotary Carbonization Furnace for Rice Husk, Bamboo Chips Carbon Production

Product Description

Product Description

The rotary carbonization furnace—also known as a rotary drum carbonization furnace—is primarily used to process agricultural and forestry raw materials (such as wood logs, sawdust, fruit shells, and straw) into charcoal or biochar by heating and carbonizing them in a sealed, oxygen-deprived environment. The furnace features a horizontal, elongated drum structure. During operation, the drum rotates continuously at a low speed, causing the material to tumble and move forward while undergoing pyrolysis and carbonization under controlled temperature and limited oxygen conditions. Combustible flue gases generated during the thermal decomposition of the raw materials are recovered and purified for reuse as fuel within the furnace; once normal production is established, virtually no additional fuel is required. Additionally, the process yields wood tar and wood vinegar as by-products, thereby enhancing the project's profitability.

Model	Capacity	Carbonization temperature	Raw material requirements	Power	Size	Weight
MCLF-300	300-500kg/h	250°-300°	moisture content within 40%, particle size: <50mm	5.5kw	4.4*1.5*2.1m	2500kg

Raw materials

The equipment uses sawdust, wood chips, coconut shells, nut shells, various biomass, capacitors, circuit boards, electronic waste, scrap metal from can paint removal, etc. as raw materials. It transports these materials into the rotary furnace for high-temperature carbonization in one go. The rotary carbonization furnace equipment dries and carbonizes the materials during operation. The flue gas generated can be recycled. The diverted flue gas is combustible gas, which can be used as fuel. The furnace bottom is recycled for its own combustion and heating.

Raw materials are fed into the furnace drum, and the furnace body rotates clockwise; internal lifting flights continuously lift and turn the materials—such as coconut shells or fruit shells—as they slowly advance through the furnace, undergoing dry distillation and carbonization in a sealed, oxygen-deprived environment. Upon completion of carbonization, the furnace rotates counter-clockwise, and the lifting flights push the material in the reverse direction toward the discharge outlet; the discharged material is rapidly water-cooled to prevent the high-temperature charcoal from re-igniting. Combustible flue gases generated during carbonization are collected and fed back into the furnace to provide heat for the process.

Advantages

1. High continuous production capacity ensures consistent charcoal quality and strong marketability.

 2. Flue gas recovery provides self-heating capabilities, minimizing fuel consumption and significantly reducing operating costs.

3. Diverse feedstock options—including sawdust, coconut shells, and fruit shells—ensure easy access to agricultural and forestry waste materials.

4. An enclosed, eco-friendly design ensures flue gas emissions meet regulatory standards, facilitating easy environmental compliance approval.

5. High levels of automation allow for supervision by a minimal workforce, saving on labor costs.

6. By-products such as wood tar and wood vinegar generate additional revenue, boosting the project's return on investment.

7. Durable equipment with a low failure rate ensures simple maintenance and reliable after-sales support.

8. Specifications can be customized to meet specific needs, with complete production line solutions and on-site installation and commissioning by engineers.

Zhengzhou xiangkun Machinery offers a comprehensive range of carbonization equipment featuring various structural designs—including continuous carbonization furnaces, hoist-type furnaces, and new-model horizontal furnaces—to suit different production capacities and project budgets. We help you select the ideal furnace model based on your specific raw materials (type and moisture content), target output, site conditions, and budget. We also provide complete production line solutions—incorporating crushing, drying, and flue gas purification systems—along with on-site installation, commissioning, technical training, and long-term warranty services. Whether for small-scale or large-scale operations, we have a carbonization furnace to meet your production needs.

The carbonization furnace can be integrated with briquette-making or coal-rod-making production lines to form a complete charcoal or briquette manufacturing system. When paired with a briquette-making machine, raw materials are first extruded into hollow charcoal rods and then conveyed into the furnace for oxygen-deprived dry distillation (carbonization) to produce machine-made charcoal; when paired with a coal-rod machine, coal powder is pressed into rods and then carbonized and solidified in the furnace to produce smokeless fuel rods. This integrated production line streamlines the entire process—from raw material crushing and forming to carbonization and discharge—offering high automation, continuous operation, significant labor savings, and consistent product quality, making it ideal for large-scale production. Customers can choose between individual units or complete production line solutions based on their specific raw materials, production targets, and budget.

Success Stories

xiangkun Machinery's carbonization equipment has been exported in bulk to numerous countries—including South Korea, Russia, Indonesia, Vietnam, Kazakhstan, Ghana, South Africa, and Nigeria—accumulating extensive experience with overseas project implementation and the ability to meet diverse national environmental standards and raw material requirements. Customer Location: South Korea Equipment Purchased: xiangkun Rotary Carbonization Furnace Raw Materials: Imported coconut shells, local bamboo chips, and wood processing scraps/offcuts Target Product: High-quality nut-shell biochar, supplied to local South Korean activated carbon processing plants and the soil amendment industry Performance Results: Uniform and stable carbonization with a yield of 32%–35%; the finished product meets South Korean procurement standards for activated carbon raw materials. The production process requires no additional fuel (consuming electricity only for the motors) and utilizes an integrated flue gas recovery, combustion, and purification system to ensure smokeless emissions, successfully passing local environmental inspections. The entire production line requires only 1–2 operators, effectively reducing labor costs.

FAQ

Q1: What raw materials can the rotary carbonization furnace process?

A: It can process sawdust, wood chips, coconut shells, nut shells, peanut shells, straw and other biomass scraps. Large raw materials need pre-crushing, and moisture content should be below 20%.

Q2: Is power consumption high? Does it need continuous extra fuel?
A: A small amount of fuel is needed for start-up. During normal operation, the combustible gas from carbonization is recycled to heat the furnace. Almost no extra fuel is required; only the driving motor consumes electricity.

Q3: What is the charcoal yield rate?

A: It varies by raw material. Coconut shell and nut shell: 30%–38%; sawdust and straw: 25%–32%.

Q4: Can it work alone? Can it match with briquette machine?

A: It can run as a single machine, or work with briquette machine and coal rod machine to form a full production line. Raw materials are pressed into rods first, then carbonized to make machine-made charcoal.

Q5: Is the machine eco-friendly? How about flue gas treatment?

A: Adopt sealed negative pressure dry distillation. Flammable gas is recycled for combustion, and residual gas passes through dust removal purification, smokeless discharge to meet environmental standards.

Q6: What about after-sales service and warranty?

A: 2-year warranty. We can send engineers for on-site installation, commissioning and operator training. Spare parts are supplied long-term.

Q7: What machines are included in a full production line?

A: Optional: crusher, dryer, screw conveyor, rotary carbonization furnace, flue gas purification system, water cooling discharger.