Single-Drum Fixed-Grate Wood Waste-Fired Steam Boiler
1. Product Description
The single drum fixed grate steam boiler adopts a horizontal three-pass structure, combining water-tube and fire-tube technologies to enhance heat transfer efficiency. The boiler is equipped with a fixed grate combustion system, ensuring stable burning of wood waste fuel such as wood chips, sawdust, and biomass residues.
With a rated capacity typically ranging from 0.5 to 6 tons per hour and working pressure up to 1.25 MPa, this biomass fired boiler system delivers reliable steam output for continuous industrial operations.
Advanced components such as threaded smoke tubes, water wall structures, and efficient heat exchange surfaces ensure optimal thermal performance and reduced fuel consumption.
2. Product Advantages
The boiler adopts a single-drum horizontal biomass steam boiler with a large furnace design. The heating surface area is large and the furnace capacity is also large.
The combustion chamber uses a fixed grate structure. A unique secondary air supply device blows air to the rear of the flame, preventing flames from escaping through the feeding port and strengthening oxygen supply, allowing fuel to burn more completely.
The entire boiler adopts a dense tube arrangement and sufficient heating surface design, avoiding blind zones for flue gas flow and reducing dust accumulation.
Automatic feeding and frequency conversion technology are used. One-button operation enables stable heating and precise temperature adjustment.
Equipped with safety protection measures such as water shortage and explosion prevention, with observation holes and inspection doors for routine inspection.
The furnace body adopts a thickened insulation plate structure, with large-area insulation for both the boiler body and legs. The combustion chamber uses double-layer steel plates filled with high-efficiency insulation material, making the outer surface temperature close to the ambient temperature (below 50°C) and providing excellent insulation performance.
3. Applications & Use Cases
The industrial biomass steam boiler is widely used in various industries:
- Wood processing plants – utilizing wood waste for energy reuse
- Textile and garment factories – steam supply for dyeing and finishing
- Food processing industries – sterilization, cooking, and drying
- Paper mills and packaging plants – continuous steam demand
- Agricultural processing plants – biomass fuel utilization
It is especially suitable for enterprises that generate large amounts of wood waste or biomass residues, enabling energy recycling and cost savings.

4. Technical Parameters
| Item | Unit | DZG ( )-( ) SCII | |||||
| Rated Steam Capacity | t/h | 1 | 2 | 4 | 6 | 8 | 10 |
| Rated Steam Pressure | MPa | 0.7 / 1.25 | 0.7 / 1.25 | 1.25 / 1.6 | 1.25 / 1.6 | 1.25 / 1.6 | 1.25 / 1.6 |
| Rated Steam Temperature | °C | 170 / 194 | 170 / 194 | 194 / 204 | 194 / 204 | 194 / 204 | 194 / 204 |
| Rated Feed Water Temperature | °C | 20 | 20 | 20 | 20 | 20 | 20 |
| Main Steam Valve | DN | 65 | 80 | 100 | 150 | 150 | 150 |
| Design Thermal Efficiency | ≥% | 82 | 83.45 | 84 | 83 | 83.5 | 84 |
| Applicable Fuel | Biomass pellets, firewood, wood scraps, etc. | ||||||
| Overall Dimensions(L*W*H) | MM | 4600 | 5000 | 6500 | 7000 | 7690 | 18500 |
| 2000 | 2100 | 2800 | 3400 | 3340 | 5620 | ||
| 3200 | 3500 | 3600 | 4200 | 4500 | 8200 | ||
5. Conclusion
The single drum fixed grate wood waste fired steam boiler is an ideal solution for industries seeking a reliable, eco-friendly, and cost-efficient steam generation system. With its robust design, high efficiency, and wide fuel adaptability, this biomass fired steam boiler helps businesses reduce energy costs while promoting sustainable development.