Product Description
Biomass/Coal Fired Hot Water Boiler
AIXBOILER’s biomass/coal fired hot water boilers offer reliable, eco-friendly heating using chain grate combustion for solid fuels like coal, biomass pellets, wood chips, and agricultural waste. (22 words)
Here are examples of AIXBOILER’s biomass/coal fired hot water boilers and similar high-quality industrial designs:
These images showcase horizontal chain grate DZL/SZL series boilers with threaded tubes and arched tube plates.
Detailed Description
AIXBOILER, a leading A-GRADE boiler manufacturer in China with over 45 years of expertise since 1978, provides biomass/coal fired hot water boilers designed for efficient solid fuel combustion. These horizontal chain grate or reciprocating grate systems handle various fuels including bituminous coal, anthracite, biomass pellets, rice husk, wood chips, palm shells, and straw—offering a sustainable alternative to fossil fuels.
Manufactured in our advanced facility in Taikang Industrial Park, Zhoukou City, Henan Province—the “Hometown of Boilers”—AIXBOILER boilers feature arched tube sheets for better water circulation, threaded fire tubes for enhanced heat transfer, and robust grate systems for uniform fuel burning. Available in DZL (single drum) for smaller capacities and SZL (double drum) for larger, they deliver stable hot water for heating applications.
Committed to environmental protection, these boilers incorporate dust collectors, desulfurization, and low-NOx designs to minimize emissions, supporting green energy transitions while exported to over 80 countries.
Key Features and Benefits
- Fuel Versatility → Burns coal, biomass, or mixed fuels efficiently.
- High Efficiency → Threaded tubes and large heating surfaces.
- Eco-Friendly → Reduced emissions with multi-stage dust removal.
- Reliable Grate System → Chain or reciprocating for even combustion and easy ash removal.
- Easy Operation → Automatic feed, induced draft fans, and PLC controls.
- Durability → Arched design resists deformation under high heat.
Technical Parameters
The table outlines typical specifications for AIXBOILER biomass/coal fired hot water boilers (DZL/SZL series; custom available):
| Parameter | Specification Range | Notes / Standard Models |
|---|---|---|
| Rated Thermal Power | 0.7 MW – 29 MW (1 – 40 million kcal/h) | DZL: up to 14 MW; SZL: larger |
| Rated Working Pressure | Atmospheric or 0.7 – 1.6 MPa | Suitable for open/closed systems |
| Outlet/Inlet Water Temperature | 95°C / 70°C (up to 130°C / 90°C) | Adjustable for district heating |
| Thermal Efficiency | 80% – 88% | Higher with economizer/air preheater |
| Fuel Type | Coal (bituminous/anthracite), Biomass (pellets, husk, chips, straw) | Mixed fuel compatible |
| Grate Type | Chain Grate, Reciprocating Grate | Stepless speed control |
| Control System | PLC + Touch Screen | Automatic fuel feed and combustion |
| Heating Surface | 30 – 800 m² | Threaded tubes for convection |
| Dimensions (approx.) | Varies (e.g., 5m – 15m length) | Horizontal assembly |
| Weight (dry) | 10 tons – 80 tons | Depending on capacity |
| Emissions | Dust ≤ 50 mg/Nm³, SO2/NOx compliant | With bag filter or cyclone |
These parameters ensure cost-effective, reliable heating with renewable options.
Views of chain grate mechanisms and internals:
Design and Construction Standards
AIXBOILER biomass/coal fired hot water boilers meet:
- Primary Standards: GB/T 16507 (China), optional ASME, CE
- Materials: Boiler-grade steel with alloy tubes
- Welding & Inspection: 100% NDT, hydrostatic testing
- Accessories: Economizer, dust collector, slag remover, feed system
Optimized for fuel adaptability and thermal efficiency.
Applications
AIXBOILER biomass/coal fired hot water boilers are widely used in:
- District and building heating (schools, hotels, hospitals)
- Agricultural greenhouses and drying
- Industrial process heating (food, textiles, paper)
- Biomass power plants and rural heating
- Areas with abundant solid fuel resources
They provide economical, low-carbon heating solutions.
Quality Assurance and Testing
Each boiler undergoes:
- Combustion and efficiency trials
- Emission and ash removal testing
- Full NDT and third-party certification (TUV, SGS, BV optional)
- On-site commissioning support
Ensuring long-term reliability and compliance.
Why Choose AIXBOILER?
With family-rooted expertise since 1978, government designation in 2025, and a team of over 60 senior engineers, AIXBOILER delivers versatile, sustainable biomass/coal solutions. We offer complete services: fuel analysis, custom design, manufacturing, installation, and 24/7 maintenance for efficient heating worldwide.
The Biomass/Coal Fired Hot Water Boiler, manufactured by AIX Boiler, a Chinese A-grade producer since 1976, combusts biomass or coal to produce hot water for industrial and commercial heating. Its advanced combustion system 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 it ideal for industries like textiles, food processing, and district heating. AIX’s hot water boilers deliver reliable, eco-friendly heating solutions.
Specifications
| Vertical Hot Water Boiler Technical Parameter Data | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Item | CLSG 0.06-95/70 | CLSG 0.12-95/70 | CLSG 0.24-95/70 | CLSG 0.35-95/70 | CLSG 0.5-95/70 | CLSG 0.6-95/70 | CLSH 0.7-95/70 | CLSH 1.05-95/70 | CLSH 1.4-95/70 |
| Rated Capacity (KW) | 60 | 120 | 240 | 350 | 500 | 600 | 700 | 1050 | 1400 |
| Working Pressure | Atmospheric pressure | ||||||||
| Hot Water Temperature(℃) | 95℃/85℃ | ||||||||
| Return Water Temperature(℃) | 70℃/60℃ | ||||||||
| Thermal Efficiency % | ≥82% | ||||||||
| Dimension(mm) | 800*2200 | 900*2600 | 1100*2800 | 1212*3420 | 1310*3780 | 1416*3780 | 1612*4420 | 1812*5200 | 2016*5300 |
| Weight (kg) | 380 | 550 | 900 | 1893 | 3120 | 3650 | 3821 | 4800 | 5700 |
| Note: Parameter is for reference only, if any changes should follow the factory technical data. | |||||||||
- Hot Ta
Features
DZL/DZH Series Wood Boiler
DZL boiler is automatic wood feeding boiler, with Chain Grate stoker with single drum & fire tubes & water tubes.
DZH manual wood boiler, with travelling grate (strong adaptability for agro waste) & single drum & fire-tubes water-tubes.
1. Smoke and dust separator chamber
Separate smoke and dust according to inertia,reduce the original effluent concentration of soot.
2. Optimized design CAD
Choose the best furnace from dozens of options,improve economical efficiency.
3. Convex tube plate
1) Improve tube plate flexibility, so as to reduce the heating stress of welded sew at the pipe end.
2) Prevent tube plate cracking, cancel bracing,simplify the structure.
4. Large size of simple circulation loop drop pipe and lower set box
Increase the flow rate of water on water cooling wall in order to prevent subcooled boiling. To prevent pipe explosion,Increase the reliability of water cycle
5. New pattern of furnace arch
Strengthen the combustion, could burn kinds of fuel: wood, coal and biomass, improve combustion efficiency.