Chain grate boiler| Reciprocating grate boiler | Moving grate boiler
Yuanda biomass boiler, using chain grate or reciprocating grate or fixed grate as combustion device, burn woodchip, pellet, firewood, ricehusk, fruit shell etc. We aim to offer the most proper biomass boiler according fuel.
| Capacity: | 100kg-50000kg, 0.1ton-50ton, 120kw-28000kw |
| Work Pressure: | 3-40bar, 0.3-4.0Mpa |
| Heat Temperature: | 0-450℃ |
| Output: | Steam, Hot Water |
| Application: | For heating/drying/turbine drive, in food, beverage, paper, textile, feed mill, pharm, package, chemical, building materials, laundry etc |
Introduction
Yuanda Boiler, specialized in industrial boiler since 1956. We aim to offer the biomass boilers best suited for industrial heating, based on fuel and customer needs.
We have water tube biomass boiler, fire tube biomass boiler and water-fire mixed tube biomass boiler. Combustion equipment is rationally configured according to fuel characteristics such traveling grate, fixed grate, chain grate, reciprocating grate and fluidized bed, bubbling bed etc.
Can efficiently burn biomass/wood pellets, logs, bark, wood chips; agricultural by-products/waste—such as rice husks, palm shells, palm fibers, or bagasse; Mixed fuel like wood scraps, sawdust, and bulk fuel with high moisture content (up to 55%).
DZH DZL series Water-fire Tube Boiler
1. Single-drum boiler, water-tube and fire-tube combined.
2. Automatic feeding, hand feeding for choose.
3. Radiation zone design with water-tubes in the side walls.
4. Convection zone with two tube wings and spiral smoke tubes in the steam drum.
5. Symmetrical distribution of the upper drum, water walls, and headers, ensuring thermal stability.
6. High efficiency (up to 85%) and optimized heating surface layout.
7. Packaged delivery, short installation.
1. Horizontal double-drum water-tube boiler.
2. Lightweight furnace wall, membrane wall design, patented A or D type design.
3. Efficiently burns high-moisture (up to 50%), high-ash biomass fuels and mixed bulk fuels.
4. Configured with different combustion equipment and materials according to different fuels (chain grate, moving grate, reciprocating grate, bubbling grate and so on).
5. Compact structure, high steam quality, continuous and stable heating.
Parameter
| Boiler model | Rated capacity |
Rated pressure |
Rated temprature |
Exhaust temprature |
Boiler efficiency |
Fuel comsumption |
Design weight |
Design dimension |
| ton/h | Mpa | ℃ | ℃ | % | kg | ton | mm | |
| DZL1 | 1 | 1.25/1.6/2.5/3.82 | 194/204/226/450 | 109 | >84 | 187 | 15.2 | 5230*2000*2780 |
| DZL2 | 2 | 131 | 375 | 23.8 | 5950*2400*3150 | |||
| DZL4 | 4 | 140 | 758 | 27 | 6829*2620*3524 | |||
| DZL6 | 6 | 139 | 1125 | 40 | 8170*3180*3804 | |||
| DZL8 | 8 | 138 | 1508 | 45 | 8130*3300*3950 | |||
| SZL10 | 10 | 153 | 2150 | 24 | 7645*3180*3526 | |||
| SZL12 | 12 | 149 | 2400 | 24.3 | 9258*3294*3524 | |||
| SZL15 | 15 | 150 | 2568 | 24.7 | 11010*3300*2200 | |||
| SZL20 | 20 | 148 | 4267 | 26 | 16680*6200*8420 | |||
| SZL25 | 25 | 151 | 4675 | 26.5 | 17550*7300*8900 | |||
| SZL30 | 30 | 147 | 5610 | 27 | 18230*7600*9200 | |||
| SZL40 | 40 | 152 | 7450 | 27.8 | 18750*8500*9600 |
| Model |
Rated heating capacity (mw) |
Rated working pressure (Mpa) |
Rated output water temperature (℃) |
Rated return water temperature (℃) |
Thermal efficiency (%) |
Fuel consumption (Kg/h) |
| DZL 0.7 | 0.7mw | Atmospheric pressure/0.7/1.0 mpa | 85/95/115/130 ℃ | 70/60 ℃ | >84 | 150 |
| DZL 1.4 | 1.4mw | Atmospheric pressure/0.7/1.0 mpa | 85/95/115/130 ℃ | 70/60 ℃ | >84 | 302 |
| DZL 2.8 | 2.8mw | Atmospheric pressure/0.7/1.0 mpa | 85/95/115/130 ℃ | 70/60 ℃ | >84 | 596 |
| DZL 4.2 | 4.2mw | Atmospheric pressure/0.7/1.0 mpa | 85/95/115/130 ℃ | 70/60 ℃ | >84 | 880 |
| DZL 5.6 | 5.6mw | Atmospheric pressure/0.7/1.0 mpa | 85/95/115/130 ℃ | 70/60 ℃ | >84 | 1160 |
| DZL 7 | 7mw | Atmospheric pressure/0.7/1.0 mpa | 85/95/115/130 ℃ | 70/60 ℃ | >84 | 1380 |
| DZL 10.5 | 10.5mw | Atmospheric pressure/0.7/1.0 mpa | 85/95/115/130 ℃ | 70/60 ℃ | >84 | 2030 |
| DZL 14 | 14mw | Atmospheric pressure/0.7/1.0 mpa | 85/95/115/130 ℃ | 70/60 ℃ | >84 | 2700 |
| Note: for place limited, we didn't list all models, if you need other capacity, pressure, fuel, please send us inquiry directly, we will send you detailed parameter. | ||||||
Advantages
① Wide applicability for kinds of biomass fuel, pellet, and high-moisture, high-ash fuels (wood waste, sawdust, palm shells, fiber, rice husks, bagasse, etc.)
② No fuel size limit – supports flakes, blocks, chips, granules, powders
③ Three-step burning process (preheating + main combustion + burnout) with four stages: drying, pyrolysis, combustion, burnout – combustion efficiency ≥90%
④ Smart air control – multiple independent air chambers for precise airflow adjustment per combustion stage (preheating zone, drying zone, main combustion zone, coke zone, ash slag zone)
⑤ Active slag breaking and self-cleaning – reciprocating grate breaks slag and removes ash automatically
⑥ Water-tube boiler design – high-quality steam, high safety, high pressure capability, can produce superheated steam
⑦ Robust grate bars made of heat-resistant cast steel – long service life, easy maintenance
⑧ Wide load adjustment (30%-110%) with rapid response – adapts to production line fluctuations
⑨ Fully automatic control (PLC/DCS) – auto feeding, ignition, air-fuel ratio adjustment, ash removal, fault alarm and protection
⑩ Real-time fault monitoring – auto alarm and protection program activation upon abnormality
⑪ Modular design – pre-assembled boiler body, feeding system, dust removal system, control system, reducing on-site work
⑫ Convenient maintenance – multiple inspection doors and observation holes for maintenance without shutdown
⑬ Automated ash removal – soot blower effectively removes ash from heated surfaces
⑭ Equipped energy-saving device like economizer/preheater, and cyclon/bag filter/wet scrubber, environmental protection and energy conservation
About Us
■ Founded in 1956, a premium supplier assessed, certified, and inspected by SGS Group. Leading industrial boiler manufacturer in China.
■ Holds international boiler certifications: CE, ASME, DOSH, EAC, GOST, ISO
■ Over 17 years of export experience, gold-level supplier, ensuring payment and delivery.
■ Professional team integrating R&D, production, sales, and service.
■ 53,053㎡ Factory area, supporting video/VR factory audits or third-party inspections.
■ Engineers serving over 50 countries.
■ Products sold to over 130 countries/regions, covering food, beverage, textiles, paper, wood industries. Serving over 100,000 customers.
Pre-sale Service:
1. Design一We help customer to choose the best boiler model according to the different requirements of different industries.
2. Drawing and files一Supply quality certificates, factory-inspect, fuel consumption calculation, cost analysis, foundation drawings, layout drawings, boiler room drawings nased on your needs, etc.
3. Technical Solution一Design completed boiler system with accessories and installation materials for your company.
4. Transportation一We have shipping partners and forwarder for lowest price and safe.
After-sale Service:
1. Provide a full range of boiler and original spare parts.
2. Overseas engineers installation and commissioning service is available.
3. Training in site, to ensure safe operation.
4. 24 hours online, quick respond.
5. Free maintenance and repair for one year and lifetime service.
If you require any boiler information or price, please feel free to let us know—no obligation.

Relate Cases
Send Your Message
Please let us know which products and requirements you have, and we'll send you the right info and pricelist.
Steam Boiler/Generator
Hot Water Boiler
Thermal Oil Boiler