Vertical Fixed-Grate Biomass Pellet-Fired Thermal Oil Boiler
Compared with traditional systems, the vertical biomass thermal oil heater features a compact structure, high thermal efficiency, and environmentally friendly performance. It is widely used in industries requiring continuous and stable heat supply.
1. Product Description
The vertical fixed grate biomass boiler adopts a classic fixed grate combustion structure, ensuring stable fuel feeding and complete combustion. The furnace is designed with multi-layer coil heat exchange surfaces, significantly improving the heat transfer efficiency.
This biomass pellet fired thermal oil boiler operates with a three-pass flue gas system, which enhances heat utilization and reduces energy loss. The system is equipped with an advanced control cabinet to ensure precise temperature control and safe operation.
Additionally, the boiler supports various biomass fuels such as wood pellets, sawdust, palm shells, and rice husks, making it a flexible and cost-effective industrial biomass boilersolution.
2. Product Features & Advantages
The furnace body adopts a national patented technology – dense coil plate structure, which effectively prevents furnace top collapse and improves the thermal efficiency of the boiler.
The combustion chamber uses a fixed grate structure, and the cylinder body adopts double-layer steel plates with high-quality insulation material filled in the middle, reducing heat dissipation loss of the furnace wall.
The external insulation part of the boiler adopts insulation supports, high-efficiency insulation materials, and advanced construction technology, providing excellent insulation performance. The outer surface temperature is close to the ambient temperature (below 50°C).
The furnace body is equipped with an ash cleaning door, making cleaning convenient. An internal ash discharge door is also installed to maintain cleanliness and hygiene.
Theheat transfer oil flow path is well designed, with oil entering from the bottom and exiting from the top, which helps exhaust gases and prevents coking, thereby extending the boiler’s service life.
The system is equipped with a frequency converter, which improves combustion temperature and saves fuel while also protecting the induced draft fan and extending its service life.
Installation is simple and convenient, and the investment cost is relatively low.
3. Applications & Use Cases
The biomass hot oil boiler system is widely used in:
- Textile Industry: Dyeing, printing, and drying processes
- Chemical Industry: Reactor heating and material processing
- Plastic & Rubber Industry: Extrusion, molding, and vulcanization
- Food Industry: Drying, frying, and sterilization
- Building Materials: Asphalt heating and board production
- Pharmaceutical Industry: Distillation and concentration
Thanks to its stable high-temperature output (up to around 320°C), the industrial vertical biomass pellet boiler is suitable for continuous production lines requiring reliable heat sources.

4. Technical Parameters
| Item | Unit | YGL-Q SC | ||||||||||
| Heat Supply | 10⁴ Kcal/h | 20 | 30 | 60 | 80 | 100 | 120 | 160 | 200 | 240 | 300 | 400 |
| Rated Thermal Power | kW | 240 | 350 | 700 | 1000 | 1200 | 1400 | 1900 | 2400 | 2800 | 3500 | 4600 |
| System Thermal Efficiency | % | 85.74 | 85.74 | 85.85 | 85.74 | 85.79 | 85.79 | 85.74 | 85.83 | 86.12 | 85.88 | 85.74 |
| Rated Working Pressure | MPa | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Maximum Operating Temperature | °C | 290 | 290 | 290 | 290 | 290 | 290 | 290 | 290 | 300 | 300 | 300 |
| Furnace Volume | m³ | 0.23 | 0.36 | 0.61 | 0.78 | 1.1 | 1.3 | 1.6 | 2.9 | 5.4 | 5.6 | 6.24 |
| Circulating Oil Flow | m³/h | 25 | 45 | 87 | 80 | 90 | 100 | 160 | 160 | 200 | 200 | 250 |
| Piping Connection Diameter | DN (mm) | 65 | 80 | 100 | 125 | 125 | 125 | 150 | 200 | 200 | 200 | 250 |
| Total System Power | kW | 12 | 16 | 25 | 32 | 41 | 42 | 60 | 63 | 80.5 | 88.2 | 136.5 |
| Applicable Fuel | Biomass pellets, firewood, wood scraps | |||||||||||
| Overall Dimensions(L*W*H) | MM | 1930 | 2204 | 2386 | 2769 | 2770 | 2773 | 2826 | 3078 | 3996 | 3659 | 4212 |
| 1670 | 1980 | 2116 | 2402 | 2402 | 2402 | 2460 | 2706 | 2977 | 3472 | 3193 | ||
| 2774 | 3548 | 4010 | 4788 | 5288 | 5788 | 6006 | 6360 | 7200 | 8862 | 9359 | ||
| Boiler Weight | t | 3.7 | 5.0 | 6.2 | 9.4 | 10.3 | 10.6 | 12 | 16.5 | 17.5 | 30(square) | 42(square) |
5. Conclusion
In summary, the vertical fixed grate biomass pellet-fired thermal oil boiler is an advanced and eco-friendly biomass thermal oil boiler solution. It combines high efficiency, low emissions, and flexible fuel options, making it ideal for a wide range of industrial heating applications.
With its compact vertical design and intelligent control system, this automatic biomass thermal oil heater helps enterprises reduce energy costs while improving production efficiency.