The Yongxing SZL series is a high-efficiency water-tube boiler with a double-drum longitudinal arrangement, designed for medium to large-sized industrial users seeking long-term stable operation and extreme fuel cost control. This model adopts an advanced "D"-shaped structure and a fully membrane water-cooled wall design, boasting not only strong pressure resistance and a high safety factor, but also a significant breakthrough in thermal efficiency.
Its core advantages lie in its exceptional fuel flexibility and economy: The SZL series is equipped with a large furnace and an optimized automatic chain grate, capable of fully burning biomass pellets, sawdust, rice husks, palm husks, and various grades of coal. Compared to gas-fired boilers, its operating costs can be reduced by 40%-60%; through precise segmented air distribution technology, it ensures complete combustion of fuel within the furnace, significantly improving heat utilization and reducing energy waste.
The entire unit adopts an assembled structure, resulting in a large heating area, rapid pressure rise, and strong overload capacity. The boiler is equipped with an intelligent control system and multiple safety interlocks, ensuring stable and reliable operation. Whether in textiles, food processing, or large-scale centralized heating, Yongxing SZL boilers are the ideal thermal energy solution for achieving environmental compliance and significantly reducing production costs.
The SZL series is engineered for maximum thermal efficiency using low-cost fuels like biomass pellets, rice husks, palm shells, and coal. Compared to oil or gas-fired boilers, it can reduce cumulative energy costs by 40% - 60%, providing a rapid return on investment for high-demand industrial plants.
Featuring a vertical double-drum longitudinal arrangement, this water tube design offers a larger heating surface and superior thermal stability. Unlike single-drum models, the SZL handles high-pressure requirements and large-scale steam loads with ease, ensuring a service life of over 20 years.
The furnace is constructed with a full membrane water wall, which provides 100% sealing to prevent heat leakage. This technology not only maximizes heat absorption but also significantly reduces the need for heavy refractory bricks, leading to a more durable and lower-maintenance furnace structure.
Designed with an extra-large furnace volume, the SZL boiler ensures a long residence time for volatile gases. This is critical for biomass combustion, as it allows sufficient space for the fuel to burn completely, reducing carbon loss and ensuring stable steam output even with fluctuating fuel quality.
Underneath the high-strength automatic chain grate, the boiler is equipped with independent, adjustable air chambers. This allows operators to precisely control the oxygen flow to different combustion stages (preheating, burning, and burnout), achieving complete combustion and smoke-free emissions.
The large water volume and steam space within the double drums ensure high-purity steam and excellent resistance to load fluctuations. The SZL series is renowned for its strong "overload capacity," making it the ideal power source for demanding industries such as textiles, chemical processing, and food production.
| Types | Steam Capacity | Steam pressure | Steam temperature | Heat Efficiency | Fuel | Max Transport Weight | Max Transport Dimension |
|---|---|---|---|---|---|---|---|
| Unit | t/h | MPa | °C | % | t | (LxWxH) (MM) | |
| SZL4-1.25-T | 4 |
1.25 2.5 |
194 225 |
83 |
Coal Biomass |
23000 | 6300 * 2300 * 3200 |
| SZL6-1.25-T | 6 | 25000 | 7700 * 2800 * 3450 | ||||
| SZL8-1.25-T | 8 | 27000 | 7800 * 3100 * 3520 | ||||
| SZL10-1.25-T | 10 | 30000 | 7900 * 3300 * 3640 | ||||
| SZL15-1.25-T | 15 | 40000 | 10000 * 3200 * 3500 | ||||
| SZL20-1.25-T | 20 | 45000 | 11000 * 3300 * 3500 |
| Types | Heat Power | Working Pressure | Outlet/Return Temperature | Heat Efficiency | Fuel | Max Transport Weight | Max Transport Dimension |
|---|---|---|---|---|---|---|---|
| Unit | MW | MPa | °C | % | t | (LxWxH) (M) | |
| SZL4.2-1.0/115/70-T | 4.2 | 1 | 115/70 | 83 |
Coal Biomass |
23000 | 10.2 * 3.2 * 5.8 |
| SZL5.6-1.0/115/70-T | 5.6 | 34000 | 11.7 * 3.5 * 5.9 | ||||
| SZL7.0-1.0/115/70-T | 7 | 35000 | 11.9 * 3.2 * 6.4 | ||||
| SZL10.5-1.0/115/70-T | 10.5 | 39000 | 12.6 * 4.6 * 6.7 | ||||
| SZL14-1.0/115/70-T | 14 | 45000 | 13.8 * 5.2 * 8.4 |
| Types | Heat Power | Working Pressure | Outlet/Return Temperature | Heat Efficiency | Fuel | Max Transport Weight | Max Transport Dimension |
|---|---|---|---|---|---|---|---|
| Unit | MW | MPa | °C | % | t | (LxWxH) (M) | |
| CSZL4.2-85/60-T | 4.2 | 0 | 85/60 | 83 |
Coal Biomass |
23000 | 10.2 * 3.2 * 5.8 |
| CSZL5.6-85/60-T | 5.6 | 34000 | 11.7 * 3.5 * 5.9 | ||||
| CSZL7.0-85/60-T | 7 | 35000 | 11.9 * 3.2 * 6.4 | ||||
| CSZL10.5-85/60-T | 10.5 | 39000 | 12.6 * 4.6 * 6.7 | ||||
| CSZL14-85/60-T | 14 | 45000 | 13.8 * 5.2 * 8.4 |
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