Chain grate boiler | Automatic coal boiler | Coal steam/hot water boiler
DZL SZL coal boiler, also named chain grate boiler, automatic coal boiler, that provide steam or hot water for production. Low emission and excellent operating performance.
| Capacity: | 500kg-50000kg, 0.5ton-50ton, 0.35mw-28mw, 350kw-28000kw |
| Work Pressure: | 3-25bar, 0.3-2.5Mpa |
| 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, building heating etc |
Introduction
Yuanda Boiler manufacture DZL packaged coal boiler (1–8 ton, 0.7–5.6 MW), SZL water-tube coal boiler (6–40 tons, 4.2–14 MW), LSG vertical coal boiler (100–1,000 kg, 120–700 kW), Fluidized bed boiler(25-75ton). For generating steam or hot water for factory production, or central heating.
With ASME, CE, ISO, DOSH, and EAC certifications.
DZL SZL boiler using chain grate combustion system (reciprocating grate optional). It features automatic mechanical coal feeding, strong fuel adaptability, stable operation, minimal coal dust leakage, low emissions, and ease of maintenance.
"DZL" Coal Boiler
DZL coal boiler is horizontal single-drum boiler with moving grate(chain grate, reciprocating grate), three pass water-fire tubes structure.
Features:
1. Packaged design(The furnace and chain grate are packaged before delivery), less installation, easy to operate.
2. Spirally corrugated fire tubes, improves thermal efficiency, reduces flue gas temperature.
3. Wing-shape flue, allows smoke to enter the front smoke box smoothly, prevents tube sheet damage.
4. Hot water boilers adopts the unique backwater injection technology.
"SZL"Coal Boiler
Horizontal double-drum membrane water tube boiler with chain grate/reciprocating grate, strong fuel adaptability.
Features:
1. High combustion chamber, staged air distribution, and staged combustion technology ensure complete combustion.
2. Membrane water wall and water cooled arch improve thermal efficiency and reduce heat loss.
3. Whirlwind burning chamber structure.
4. Online soot blowing system keeps heating surfaces clean for long-term efficient operation.
5. Independent wind chamber.
6. Suitable for co-firing with biomass fuel.
Advantages
• High Efficiency: Arched tube sheet, 3-pass wet-back, spirally corrugated fire tubes; dual-side flue gas flow lowers flue gas temperature and boiler bottom thermal load.
• Intelligent Control: Digital PLC with interlocking for fuel feeding, water treatment, combustion chamber, and fan.
• Customized solutions save time and money. Customized designs for different fuel feeding, combustion, ash discharge, water treatment, and flue gas treatment systems, as well as boiler room layout.
• High Steam Quality: Built-in steam separator; moisture content below 1%.
• Multi-Layer Safety: 5-stage water level monitoring, 4-stage pressure protection, over-temperature/over-pressure detection, and alarms.
• Easy Maintenance: Multiple soot blowers and access doors for quick cleaning and inspection.
• Cleaner Emissions: Dust separation chamber improves efficiency and reduces initial dust emissions.
• Energy Saving & Environmental: Economizer, preheater, cyclone, and wet scrubber reduce fuel use and emissions.
Parameter
| Boiler Model | Rated Capacity | Rated Pressure | Rated Steam Temp | Design Efficiency | fuel type | Comsuption | Weight of the heaviest item | Dimension |
| Ton/h | Mpa | ℃ | % | kg/h | Ton | mm | ||
| DZL1-1.0-AII | 1 | 1 | 184 | >82% | Biofuels, such bituminous coal, wood chips, firewood, rice and palm husks, bagasse, etc. | 146 | 15.2 | 5230*2000*2780 |
| DZL2-1.25-AII | 2 | 1.25 | 194 | 292 | 23.8 | 5950*2400*3150 | ||
| DZL3-1.25-AII | 3 | 1.25 | 194 | 432 | 25.4 | 6520*2530*3320 | ||
| DZL4-1.25-AII | 4 | 1.25 | 194 | 584 | 27 | 6829*2620*3524 | ||
| DZL6-1.25-AII | 6 | 1.25 | 194 | 876 | 40 | 8170*3180*3804 | ||
| DZL8-1.25-AII | 8 | 1.25 | 194 | 1168 | 45 | 8130*3300*3950 | ||
| SZL10-1.25-AII | 10 | 1.25 | 194 | 1457 | 24 | 7654*3180*3526 | ||
| SZL12-1.25-AII | 12 | 1.25 | 194 | 1987 | 37 | 9258*3294*3524 | ||
| SZL15-1.25-AII | 15 | 1.25 | 194 | 2514 | 24.7 | 11010*3300*2200 | ||
| SZL20-1.25-AII | 20 | 1.25 | 194 | 2982 | 25.97 | 16680*6200*8420 | ||
|
NOTES: 1. Due to space limitations, this table only shows pressures of 1.0 MPa (10 bar) and 1.25 MPa (13 bar); we also manufacture boilers with pressures of 0.4 MPa (4 bar), 0.7 MPa (7 bar), 1.6 MPa (16 bar), 2.5 MPa (25 bar), 3.0 MPa, and 3.82 MPa. 2. Special solutions are available to meet the environmental requirements of different countries or regions. 3. Changes in the fuel's calorific value and chemical composition will result in corresponding changes to some parameters in the table. 4. Due to continuous technological innovation and improvement, technical parameters are subject to change without prior notice. |
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| Model |
Rated thermal power (MW) |
Rated working pressure (Mpa) |
Rated output water temperature (℃) |
Rated return water temperature (℃) |
Thermal efficiency (%) |
Fuel consumption (Kg/h) |
| DZL 0.7-0.7/1.0-AII | 0.7 | 0.7/1.0 (7-10 in bar) | 95/115 | 70 | ＞84 | 150 |
| DZL 1.4-0.7/1.0-AII | 1.4 | 0.7/1.0 (7-10 in bar) | 95/115 | 70 | ＞84 | 302 |
| DZL 2.8-0.7/1.0-AII | 2.8 | 0.7/1.0 (7-10 in bar) | 95/115 | 70 | ＞84 | 596 |
| DZL 4.2-0.7/1.0-AII | 4.2 | 0.7/1.0 (7-10 in bar) | 95/115 | 70 | ＞84 | 880 |
| DZL 5.6-0.7/1.0-AII | 5.6 | 0.7/1.0 (7-10 in bar) | 95/115 | 70 | ＞84 | 1160 |
| DZL 7-0.7/1.0-AII | 7.0 | 0.7/1.0 (7-10 in bar) | 95/115 | 70 | ＞84 | 1380 |
| DZL 10.5-0.7/1.0-AII | 10.5 | 0.7/1.0 (7-10 in bar) | 95/115 | 70 | ＞84 | 2030 |
| DZL 14-0.7/1.0-AII | 14 | 0.7/1.0 (7-10 in bar) | 95/115 | 70 | ＞84 | 2700 |
| Note: Standard boiler parameter is for your reference, should follow the actual technical data according customer needs & engineer design. | ||||||
Reliable Coal Boiler Manufacturer
■ 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.
Services and Markets
■ Local support: We rely on trusted, experienced local agents who provide comprehensive service, ranging from installation and training to maintenance.
■ Comprehensive service: From project planning to after-sales care, we provide full support throughout the boiler's service life, including 24/7 online assistance and immediate response.
■ Local projects: We have installed numerous boilers in various countries and can provide case studies.
■ High repeat business rate: 55% of our clients are repeat customers or referrals.
Our Service
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 solution with installation materials for your company.
4. Competitive Price一As one boiler factory, we have lowest price and high quality.
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.
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