HIGH-EFFICIENCY SOLID FUEL STEAM GENERATION SYSTEMS

BELLFABS Coal Fired Packaged Steam Boilers are robust, high-performance steam generation systems engineered for efficient and reliable operation using coal as the primary fuel. Designed with a three-pass fully wet-back configuration, these boilers ensure maximum heat transfer, optimized fuel utilization, and long operational life.

The system integrates a mechanized or manual coal feeding arrangement, typically comprising:

• Coal storage hopper
• Bucket elevator / screw feeder system
• Controlled fuel distribution mechanism

This enables continuous and uniform fuel supply to the furnace, ensuring stable combustion and consistent steam output.

The furnace is engineered with a heavy-duty grate system (fixed / reciprocating / step grate depending on design) to handle varying grades of coal, ensuring complete combustion with minimal clinker formation.

The entire system is designed as a packaged unit, minimizing site installation time while ensuring operational efficiency and reliability for continuous industrial applications.

KEY FEATURES

Efficient Coal Combustion System

• Designed for complete combustion of various coal grades
• Optimized furnace volume and grate design
• Reduced unburnt carbon and clinker formation
• Stable combustion with uniform heat release

Fuel Feeding System

• Manual / Semi-automatic / Automatic feeding options
• Bucket elevator / screw conveyor system
• Controlled fuel supply for steady combustion
• Reduced fuel handling effort

Three-Pass Wet-Back Design

• Maximum heat extraction efficiency
• Uniform heat distribution across boiler shell
• Reduced thermal stress and improved lifespan
• Lower flue gas exit temperature

Operational Advantages

• Continuous and reliable steam generation
• Suitable for medium to high-capacity applications
• Low operating cost using coal fuel
• Easy maintenance and access
• Rugged construction for long service life