Biomass Hot Air Furnace For Rubber Drying — Malaysia

Biomass Hot Air Furnace for Rubber Drying in Malaysia

Meibao completed a high-cleanliness direct-fired biomass hot air furnace project for rubber drying in Malaysia.

 

The new furnace replaced the customer’s original natural gas hot air furnace. It uses locally available biomass fuels, including palm kernel shells and wood-based materials, to produce 550–700°C clean process hot air for continuous rubber drying.

 

The completed upgrade reduced dependence on natural gas, lowered fuel costs and supported the continuous operation of the rubber drying line.

The original rubber drying system used a natural gas hot air furnace. Fuel cost and energy-source availability were important considerations for the customer’s continuous production.

Meibao replaced the original heating unit with a high-cleanliness direct-fired biomass hot air furnace. The new system uses biomass resources that are readily available in Southeast Asia, such as palm kernel shells, wood chips and branches.

The project retained the customer’s rubber drying process while upgrading the fuel-feeding, combustion, purification, hot-air circulation and control systems.

 

Biomass is transferred through the fuel-feeding system to the combustion unit. The combustion process generates high-temperature gas, which enters the high-temperature purification chamber.

Dust carried by the combustion gas is removed and settled inside the purification section. The resulting clean hot air is controlled within a temperature range of 550–700°C.

Circulation fans deliver the hot air to the rubber drying oven and distribute it through the drying chambers. The hot-air circulation system supports continuous and controlled rubber drying.

Palm Kernel Shells, Wood Chips or Other Biomass
→ Biomass Storage
→ Fuel Hopper
→ Fuel Conveyor
→ Biomass Combustion Unit
→ High-Temperature Combustion Gas
→ High-Temperature Purification Chamber
→ Dust Removal and Settlement
→ 550–700°C Clean Hot Air
→ Hot-Air Control Valves
→ Circulation Fans
→ Rubber Drying Oven
→ Continuous Rubber Drying

1. Biomass Fuel Preparation

Palm kernel shells, wood chips, wood blocks, branches and other compatible biomass fuels are organized through the fuel-storage and feeding system.

The fuel-feeding system maintains the required biomass supply for continuous furnace operation.

2. Fuel Feeding

Biomass is transferred from the fuel hopper to the combustion unit by the conveyor and feeding mechanism.

The fuel-feeding rate is coordinated with the required hot-air temperature and heat demand of the rubber drying line.

3. Biomass Combustion

The biomass burns inside the combustion unit and generates high-temperature gas.

The combustion-air system and grate operation are coordinated with the fuel-feeding system.

4. High-Temperature Purification

The combustion gas enters the high-temperature purification chamber.

Dust carried by the gas is separated and settled inside the purification section before the hot air enters the rubber drying system.

5. Clean Hot-Air Generation

After high-temperature purification, the system produces 550–700°C process hot air.

The hot-air temperature is regulated according to the requirements of the rubber drying process.

6. Hot-Air Circulation

Circulation fans transfer the clean hot air to the rubber drying oven.

The airflow is distributed through the hot-air chambers to support continuous drying across the rubber material.

7. Rubber Drying

The controlled hot air removes moisture from the rubber during the drying cycle.

The hot-air distribution arrangement reduces surface over-drying and limits rubber buildup around the openings of the drying trolleys.

8. Automatic Control

The control system coordinates biomass feeding, combustion, purification, hot-air temperature, circulation fans and exhaust-air operation.

The operating interface provides centralized monitoring of the main furnace and drying-system conditions.

Biomass fuel-storage system

Fuel hopper

Biomass conveyor

Fuel-feeding mechanism

Biomass combustion unit

Grate and drive system

Combustion-air fan

High-temperature purification chamber

Dust-settling section

Hot-air mixing chamber

Fresh-air regulating valve

High-temperature gas valve

Hot-air control valve

Hot-air circulation fans

Rubber drying oven

Hot-air chambers and ducts

Exhaust-air system

Temperature-monitoring instruments

Automatic control system

Safety-interlock system

Inspection platform and supporting structure

Use of Locally Available Biomass
The furnace uses palm kernel shells and wood-based biomass available in the regional market, reducing the project’s dependence on natural gas.
High-Temperature Purification
The combustion gas passes through the high-temperature purification chamber before entering the rubber drying oven.
Direct-Fired Heat Utilization
The purified hot air directly enters the rubber drying system without passing through an intermediate heat exchanger.
The direct-fired arrangement improves heat utilization compared with an indirect heat-exchange hot air furnace.
Controlled Rubber Drying
Hot-air temperature and circulation are coordinated with the rubber drying cycle to reduce surface over-drying and uneven moisture removal.
Continuous Air Circulation
Multiple circulation fans distribute hot air through the drying oven and support continuous production.
Centralized Control
Fuel feeding, combustion, purification, temperature and airflow are integrated into one control system.

Following installation and commissioning, the biomass hot air furnace was connected to the existing rubber drying line and put into production.

The completed project achieved:

• Replacement of the original natural gas hot air furnace
• Use of locally available biomass fuel
• Reduction in natural gas dependence
• Lower fuel costs
• 550–700°C clean process hot air
• Continuous hot-air circulation
• Coordinated operation with the existing rubber drying oven
• Continuous and stable rubber drying production

Meibao’s high-cleanliness biomass hot air furnaces have been applied in more than ten rubber factories across Southeast Asia.

Countries with related applications include:

• Indonesia
• Malaysia
• Singapore
• Vietnam
• Thailand

Recent project milestones include:

December 11, 2025: Installation began for two biomass hot air furnaces at a rubber factory in Indonesia.

January 27, 2026: A biomass furnace installation began in Thailand to replace an existing natural gas hot air furnace.

June 2, 2026: The Thailand system passed commissioning and acceptance and was put into normal production.

These projects use similar high-cleanliness biomass heating technology for continuous rubber drying.

The same biomass hot air furnace technology is also used in:

• Detergent powder drying
• Fertilizer drying
• Feed-additive drying
• Gypsum drying
• Kaolin drying
• Coating-material drying
• Other industrial drying processes

The special hot air furnace for rubber drying incorporates multiple patented technologies.

Its system design connects biomass feeding, combustion, high-temperature purification, hot-air circulation and automatic control with the requirements of rubber drying production.

The Malaysia project covered:

• Assessment of the original natural gas heating system
• Biomass heating-process design
• Biomass fuel-system configuration
• Furnace equipment manufacturing
• High-temperature purification
• Hot-air circulation-system integration
• Connection with the existing rubber drying oven
• Installation guidance
• Commissioning
• Operator training

Meibao provides rubber-drying heating services covering:

• Biomass fuel assessment
• Rubber drying-process design
• Gas-/oil-to-biomass furnace replacement
• Biomass combustion-system engineering
• High-temperature purification design
• Hot-air circulation design
• Existing drying-line integration
• Equipment manufacturing
• Installation guidance
• Commissioning
• Operator training
• Overseas technical service

Contact Us

Planning a rubber drying project or replacing an existing gas-/oil-fired hot air furnace?

Send us your rubber production capacity, inlet moisture, target moisture, drying temperature, drying cycle, oven dimensions, trolley arrangement, available biomass and site conditions. Meibao will prepare the corresponding biomass furnace and hot-air circulation configuration.

Discuss Your Rubber Drying Project