SZL industrial biomass fired boiler adopts double-cylinder vertical structure. There are water cooled walls in front and around the boiler. The upper part is connected with the cylinder and the lower part is connected with the header to form a combustion chamber to absorb the furnace heat radiation. There are dense convection tube bundle between the upper and lower boiler cylinder. The high-temperature flue gas after combustion passes through the secondary return stroke to horizontally flush the convective heating surface and is led to a separate economizer, and finally enters the dust collector and is discharged through the chimney.

Advantages and Features:
1. The convection arrangement has high heat exchange efficiency on the heating surface, and the boiler runs smoothly.
2. Chain grate, front and rear smoke box  are all cut by CNC plasma cutting machine, neat and beautiful.
3. The boiler has a large volume capacity and complete internal devices.
4. The boiler has the functions of automatic adjustment of water supply, automatic alarm of high and low water levels, automatic protection of overpressure, and automatic protection of flameout.
5. The amount of air required for different fuels and different combustion stages in each air chamber can be adjusted, and the lateral wind pressure is the same, and the partial burning phenomenon will not occur.
6. The reasonable design of front and rear arches, the coverage of the furnace arch is large, and the furnace temperature is high;
7. Double-cylinder designed, high combustion efficiency, saving 5-10% of costs.
8. The cross-section ratio between the falling surface of each heating surface and the rising pipe is reasonable, and the combustion conditions are stable.