SZL Series Biomass Boilers: Steam and Hot Water Generation

High-Efficiency SHL & SZL Series Industrial Boilers: A Comprehensive OverviewThe SZL series water-tube boiler represents a pinnacle of modern boiler engineering, designed as a doub...

Fuel Type: Biomass
Rated Capacity: Steam : 2 - 35 t/h ; Hot Water : 2.8 - 29 MW
Rated Pressure: Steam : 1.25 - 2.5 MPa ; Hot Water : 1.0 - 1.25 MPa
Thermal Efficiency: 82.29 - 89.28 %
Fuel Consumption: 1201 - 11925 kg/h

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SZL Series Biomass Boilers: A Sustainable Solution for Steam and Hot Water Generation

The SZL Series Biomass Steam and Hot Water Boilers are advanced, eco-friendly energy solutions designed to meet the growing demand for sustainable industrial heating. Built on the proven double-drum, longitudinal water-tube platform, these boilers are specifically optimized for the efficient combustion of a wide range of biomass fuels, such as wood chips, pellets, agricultural waste, and more. By harnessing renewable energy sources, the SZL series not only provides reliable steam and hot water but also significantly reduces carbon footprint and promotes environmental sustainability.

Key Features and Innovations

Optimized for Biomass Fuel: The furnace is engineered with an increased volume and an arched design to accommodate the high volatile content and unique combustion characteristics of biomass, ensuring complete and clean burning.
Superior Thermal Efficiency: Through advanced combustion technology and an efficient heat exchange system, including membrane water-cooled walls and a multi-pass convection bank, these boilers achieve thermal efficiencies of up to 88.3%, maximizing energy output from every unit of fuel.
Automated and Intelligent Control: The boilers are equipped with a state-of-the-art PLC control system for fully automated operation. This includes automatic fuel feeding, grate speed adjustment, and air supply modulation, along with robust safety interlocks and alarms for unattended, reliable performance.
Low Emissions and Environmental Compliance: The combination of optimized combustion and effective dust collection systems ensures that emissions of NOx, SOx, and particulate matter are well below stringent environmental regulations, making it a truly green solution.
Durable and Low Maintenance: Featuring a robust chain grate stoker and high-quality materials, the SZL biomass boiler is designed for long-term, continuous operation with minimal maintenance requirements.

Technical Specifications for SZL Series Biomass Steam Boilers

Item	SZL2-1.25	SZL4-1.25	SZL6-1.25	SZL8-1.25	SZL10-1.25	SZL12-1.25	SZL15-1.25	SZL20-1.25	SZL20-1.6	SZL25-1.25	SZL35-1.25
Rated Evaporation (t/h)	2	4	6	8	10	12	15	20	20	25	35
Rated Steam Pressure (MPa)	1.25 / 1.6 / 2.5								1.6	1.25 / 1.6 / 2.5
Rated Steam Temperature (°C)	194/204/226
Feed Water Temperature (°C)	20	20	60	60	104
Boiler Thermal Efficiency (%)	82.79	82.29	82.29	84.12	84.48	87.74	87.65	88.38	89.28	88.30	88.6
Heating Surface (m²)	54.34	104.9	136.2	148.53	177.9	212.6	313.7	395.15	267.8	625.3	588.6
Grate Area (m²)	26.4	65.4	139.8	180.12	209.3	139.5	305.2	295	267.8	450
Applicable Fuel	Biomass
Overall Dimensions (L×W×H) (m)	5.6x2.2x3.5	7.2x2.7x3.58	8.1x2.7x3.58	7.0x3.22x3.59	7.6x3.22x3.59	8.1x3.38x3.55	10x3.38x3.55	10.7x3.55x3.55	10.7x3.45x3.55	12.1x3.4x3.5

Technical Specifications for SZL Series Biomass Hot Water Boilers

Item	SZL2.8-1.0 /95/70-T	SZL4.2-1.0 /95/70-T	SZL5.6-1.0 /95/70-T	SZL7.0-1.0 /115/70-T	SZL8.4-1.0 /115/70-T	SZL10.5-1.0 /115/70-T	SZL14-1.0 /130/70-T	SZL17.5-1.25 /130/70-T	SZL29-1.25 /130/70-T
Rated Heat Power (MW)	2.8	4.2	5.6	7.0	8.4	10.5	14	17.5	29
Rated Outlet Water Pressure (MPa)	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.25	1.25
Rated Outlet Water Temp (°C)	95	95	95	115	115	115	130	130	130
Rated Inlet Water Temp (°C)	70	70	70	70	70	70	70	70	70
Boiler Thermal Efficiency (%)	82.44	82.44	84.54	84.74	87.74	87.74	87.38	87.06	87.2
Heating Surface (m²)	54.5	51.84	177.6	222	234	212.6	313.7	415.07	807.1
Grate Area (m²)	104.9	91.6	91.56	91.56	139.5	348.8	318.6	521	595
Fuel	Biomass
Fuel Consumption (kg/h)	1201	1803.7	2373	2961.4	3573	4483	5984	7479	11925
Overall Dimensions (L×W×H) (m)	7.2x2.7x3.58	6.8x2.8x3.58	7.0x3.22x3.59	7.6x3.36x3.5	8.1x3.3x3.5	10.0x3.38x3.55	10.7x3.4x3.55	12.0x3.4x3.55	12.0x3.5x3.45
Maximum Shipping Weight (t)	29	30	33	35.5	48.30	51.3/31	46.37	50.7/39	8.67