Continuous Carbonization Furnace

Looking for a continuous carbonization furnace for biomass charcoal production? Our furnace can continuously feed raw materials, carbonize them, cool the finished charcoal, and discharge it into a storage hopper.

It is suitable for sawdust, coconut shells, palm shells, rice husks, branches, agricultural residues, and other biomass materials.

What Is a Continuous Carbonization Furnace?

Our continuous charcoal carbonization furnace heats biomass materials in a controlled oxygen-limited environment to produce charcoal.

Unlike batch carbonization equipment, this furnace is designed for:

• Continuous feeding
• Continuous carbonization
• Continuous charcoal discharge
• Internal combustible gas recycling
• Automatic temperature and fan control

After initial heating, the furnace can use combustible gas generated during carbonization as a heat source.

What Raw Materials Can Be Carbonized?

The continuous carbonization furnace can process a wide range of biomass materials.

Some other biomass-containing waste materials can also be evaluated according to their actual composition.

What Are the Raw Material Requirements?

Before feeding the material into the furnace, pay attention to two main requirements:

Mục	Requirement
Moisture	Below 20%
Feed size	Below 10 cm

If the raw material contains too much moisture, a sawdust drying machine should be used before carbonization.

If the raw material is larger than 10 cm, we also provide a máy nghiền gỗ to crush it first.

How Does the Carbonization Process Work?

The working process is straightforward:

Gas preheating → Feeding → Drying → Carbonization → Gas recovery → Gas purification → Gas combustion → Continuous heating → Charcoal cooling → Discharge

Step 1: Preheat the Furnace

An LPG or natural gas gasification furnace is used for initial heating.

When the internal temperature reaches approximately 300–360°C, raw materials can start entering the carbonization furnace.

Step 2: Dry and Carbonize the Material

The material moves through the carbonization pipe.

It is gradually heated, dried, and carbonized as it moves forward.

When the material reaches the required temperature, pyrolysis starts and produces combustible gas.

Step 3: Reuse the Generated Gas

The generated gas is collected and passes through:

Spraying → Cooling → Purification & separation

The treated gas is then sent to the burner by a draft fan.

The burner burns the combustible gas and provides heat back to the carbonization furnace.

Once the generated gas can maintain the required temperature, the LPG or natural gas heating system can gradually stop.

Step 4: Continuous Charcoal Discharge

The furnace can then operate continuously:

Continuous feeding → Continuous carbonization → Continuous discharge

The finished charcoal enters a cooling screw conveyor and is cooled before being sent to the storage hopper.

Water cooling or spraying can also be used before storage to reduce the temperature of the charcoal.

Main Parts of the Carbonization System

A complete continuous carbonization system mainly includes:

The 1200 model uses a combustion chamber of approximately 2.6 × 1.2 × 0.7 m.

The heating section of the main furnace is equipped with a 5 cm thick high-temperature rock wool insulation layer.

Continuous Carbonization Furnace Capacity

Different models are available for different output requirements.

Người mẫu	Charcoal Output
800	300–400 kg/h
1000	800–1000 kg/h
1200	1200–1500 kg/h

Note: The capacity above refers to the carbonized charcoal output. Actual feeding capacity is approximately 20–30% higher and varies with the specific gravity and characteristics of the raw material.