Product Description
AIXBOILER, a leading A-GRADE boiler manufacturer in China with over 45 years of expertise since 1978, specializes in biomass/coal fired steam boilers featuring reliable chain grate or reciprocating grate combustion. These horizontal fire tube/water tube designs efficiently burn various solid fuels, including bituminous/anthracite coal, biomass pellets, rice husk, bagasse, wood chips, straw, and palm shells—promoting renewable energy use.
Produced in our advanced facility in Taikang Industrial Park, Zhoukou City, Henan Province—the renowned “Hometown of Boilers”—AIXBOILER boilers include DZL single-drum packaged models for smaller capacities and SZL double-drum assembled units for larger outputs. Key elements comprise arched tube sheets for improved circulation, threaded smoke tubes for enhanced convection, and robust grates for complete burnout.
Focused on sustainability, these boilers integrate multi-cyclone dust collectors, wet scrubbers, and bag filters for low emissions, making them ideal for transitioning to greener fuels while serving industries worldwide in over 80 countries.
Key Features and Benefits
- Broad Fuel Compatibility — Handles coal, biomass, or co-firing seamlessly.
- High Combustion Efficiency — Chain grate ensures even fuel distribution and burnout.
- Eco-Conscious Design — Advanced dedusting reduces particulate emissions.
- Automated Operation — Variable speed grates, induced draft fans, and PLC controls.
- Durable Structure — Arched plates and convection bundles resist high temperatures.
- Cost-Effective — Utilizes low-cost local solid fuels.
Technical Parameters
The table details typical specifications for AIXBOILER biomass/coal fired steam boilers (DZL/SZL series; custom options available):
| Parameter | Specification Range | Notes / Standard Models |
|---|---|---|
| Rated Steam Capacity | 1 t/h – 40 t/h | DZL: 1-20 t/h; SZL: 10-40 t/h |
| Rated Working Pressure | 0.7 MPa – 2.5 MPa (7 – 25 bar) | Medium pressure saturated/superheated |
| Saturated Steam Temperature | 170°C – 204°C | Superheated options up to 400°C |
| Thermal Efficiency | 80% – 88% | Improved with economizer/air preheater |
| Fuel Type | Coal (various grades), Biomass (pellets, husk, chips, straw, shells) | Co-firing supported |
| Grate Type | Chain Grate, Traveling/Reciprocating Grate | Frequency-controlled drive |
| Control System | PLC + Touch Screen | Full automatic fuel/air modulation |
| Heating Surface | 50 – 1,200 m² | Threaded tubes + convection banks |
| Dimensions (approx.) | Varies (e.g., 5m – 18m length) | Packaged (DZL) or assembled (SZL) |
| Weight (dry) | 15 tons – 100 tons | Depending on capacity |
| Emissions | Dust ≤ 50 mg/Nm³, SO2/NOx controlled | With multi-stage cleaning systems |
These parameters provide reliable, high-output steam with fuel flexibility.
Views of chain grate mechanisms and boiler internals:
Design and Construction Standards
AIXBOILER biomass/coal fired steam boilers comply with:
- Primary Standards: GB/T 16507 (China), optional ASME Section I, CE
- Materials: High-quality boiler steel with alloy elements
- Welding & Inspection: Automated welding, 100% NDT (RT, UT), hydrostatic testing
- Accessories: Economizer, superheater, air preheater, dust collector, fuel feeder
Engineered for optimal fuel combustion and easy maintenance.
Applications
AIXBOILER biomass/coal fired steam boilers are widely applied in:
- Food and beverage processing (sterilization, cooking)
- Textile dyeing and finishing
- Chemical and pharmaceutical production
- Paper and plywood mills
- Power generation and cogeneration
- Agricultural product drying
They offer economical steam from abundant solid fuels.
Quality Assurance and Testing
Every boiler undergoes:
- Full combustion and efficiency trials
- Emission and dedusting performance checks
- Comprehensive NDT and third-party certification (TUV, SGS, BV optional)
- Commissioning with fuel-specific adjustments
Ensuring safe, efficient operation.
Why Choose AIXBOILER?
With deep family expertise since 1978, government designation in 2025, and a team of over 60 senior engineers, AIXBOILER provides robust, adaptable biomass/coal steam solutions. We deliver full services: fuel compatibility testing, custom engineering, manufacturing, installation supervision, and 24/7 maintenance for sustainable industrial steam worldwide.
The Biomass/Coal Fired Steam Boiler, manufactured by AIX Boiler, a Chinese A-grade producer since 1976, combusts biomass or coal to generate steam for industrial applications like power generation, textiles, and food processing. Its advanced combustion system, featuring chain-grate or fluidized bed technology, achieves thermal efficiency up to 88%, reducing fuel costs. The robust water-tube or fire-tube design ensures durability, with automatic controls for easy operation and low maintenance. Designed for low emissions, it meets environmental standards, making AIX’s steam boilers a reliable, eco-friendly solution for industrial heating needs.
Specifications
| DZ Series Steam Boiler Technical Parameter Table | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Rated capacity(t/h) | Rated pressure (Mpa) | Rated steam temperature(℃) | feed temperature(℃) | Thermal efficiency(%) | Boiler water volume(m³) | Exhaust temperature(℃) | Fuel comsumption（Kg/h） | max transportation weigh(t) |
| DZH1 | 1 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | ＞82 | 3.15 | 127.25 | 192.32 | 9 |
| DZL1 | 1 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | ＞82 | 3.15 | 113.34 | 190.42 | 13.5 |
| DZH2 | 2 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | ＞82 | 4.75 | 126.41 | 386.47 | 15 |
| DZL2 | 2 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | ＞82 | 4.77 | 106.34 | 393.77 | 22 |
| DZH4 | 4 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | ＞82 | 7.7 | 137.25 | 782.29 | 18.5 |
| DZL4 | 4 | 1.0/1.25/1.6/2.5 | 184/194/204/226 | 20/104 | ＞82 | 8.2 | 124.49 | 756.89 | 27.6 |
| DZH6 | 6 | 1.0/1.25/1.6/2.5 | 184/194/204/226 | 20/104 | ＞82 | 7.4 | 146.83 | 1169.57 | 25 |
| DZL6 | 6 | 1.0/1.25/1.6/2.5 | 184/194/204/226 | 20/104 | ＞82 | 8.1 | 137.29 | 1148.68 | 35 |
| DZL8 | 8 | 1.0/1.25/1.6/2.5 | 184/194/204/226 | 20/104 | ＞82 | 9.6 | 141.06 | 1602.44 | 38 |
| Note: Parameter is for reference only, if any changes should follow the factory technical data. | |||||||||
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Features
Biomass/Coal Fired Steam Boiler series coal-fired horizontal three-pass water+fire tube chain grate boiler is a packaged boiler. The boiler body is single-drum longitudinal arrangement. The threaded tube is inside the drum forms convection heating surface. The drum and both sides water-cooling wall form to radiation heating surface. The combustion equipment uses light chain grate.