Product Overview
The Chain Grate Boiler is an automatic solid fuel steam boiler engineered for continuous industrial steam generation. Its traveling grate combustion system delivers stable steam output while supporting a wide range of coal and biomass fuels for factories requiring long operating hours and reliable thermal performance.
Parameter
|
Model |
Rated Evaporating Capacity (t/h) |
Rated Working Pressure (MPa) |
Saturated Steam Temperature (℃) |
Thermal Efficiency (%) |
Natural gas Consumption (kg/h) |
Maximum Transportation Weight (t) |
|
DZL2-1.25(1.6)-SCII |
2 |
1.25/1.6 |
194/204 |
85.9 |
423.9 |
22.2 |
|
DZL4-1.25(1.6)-SCII |
4 |
1.25/1.6 |
194/204 |
85.7 |
844.5 |
35 |
|
DZL6-1.25(1.6)-SCII |
6 |
1.25/1.6 |
194/204 |
85.8 |
1263.7 |
41.2 |
|
DZL8-1.25(1.6)-SCII |
8 |
1.25/1.6 |
194/204 |
85.3 |
1686.7 |
44.5 |
|
DZL10-1.25(1.6)-SCII |
10 |
1.25/1.6 |
194/204 |
85.9 |
2111.1 |
49.7 |
Key Performance Advantages
Stable Steam Output Under Variable Loads
The continuously moving grate maintains an even fuel bed, helping stabilize combustion and reduce steam pressure fluctuations during changing production demands.
Compatible With Multiple Solid Fuels
Adjustable grate speed and combustion air distribution allow the boiler to burn coal, biomass pellets, wood chips, agricultural residues, and blended fuels with stable combustion.
Continuous Ash Removal
The integrated ash discharge system removes bottom ash during operation without interrupting combustion, supporting long-duration production.
Reliable 24/7 Industrial Operation
Heavy-duty pressure parts, heat-resistant grate components, and automated combustion control are designed for continuous industrial duty with reduced unplanned shutdowns.
Convenient Daily Maintenance
Large inspection doors and accessible furnace layout simplify routine cleaning, grate inspection, and maintenance of combustion components.
Fuel Flexibility
The boiler can be configured according to local fuel characteristics to achieve stable combustion and efficient heat release.
Fossil Fuels: Bituminous coal, Anthracite, Lignite
Biomass Fuels: Wood chips, Biomass pellets, Sawdust, Rice husks, Palm kernel shells (PKS), Coconut shells, Agricultural crop residues, and Blended solid fuels.
Target Applications
Suitable for industries requiring continuous process steam, including:
Textile & Dyeing
Paper & Pulp
Chemical Manufacturing
Pharmaceutical Production
Wood Processing
Rubber Processing
Building Materials
District Heating
Power & CHP Plants
Custom Engineering & System Integration
|
Customization Item |
Available Options |
|
Steam Capacity |
2–25 t/h |
|
Steam Parameters |
Operating pressure, Saturated or superheated steam |
|
Fuel System |
Coal, Biomass, Mixed-fuel feeding systems |
|
Combustion Control |
Variable grate speed, PLC automatic control, Remote monitoring |
|
Heat Recovery |
Economizer, Air preheater, Feedwater heat recovery |
|
Emission Control |
Dust collector, Bag filter, Wet scrubber, FGD, DeNOx |
|
Electrical Standard |
Voltage, Frequency, Control language |
|
Installation Layout |
Left/right operation, Modular configuration, Site-specific arrangement |
Manufacturing & Inspection
Every pressure component is manufactured and inspected according to documented quality procedures before shipment.
Inspection Includes
Material certificate verification
Pressure part dimensional inspection
RT/UT weld examination
Hydrostatic pressure testing
Combustion system functional testing
Control system commissioning
Factory Acceptance Test (FAT)
Complete inspection documentation
Export Delivery Support
Designed for international transportation and on-site installation.
Heavy-duty steel shipping frames
Moisture-proof protective wrapping
Export wooden cases for auxiliary equipment
Lifting points and transport markings
Installation manuals and wiring drawings included
Spare parts list supplied before shipment
Why Partner With Us
Manufacturing Scale: 160-acre facility with 69,000 m² production workshops and over 300 precision processing units.
Compliance & Licensing: Holds ASME, CE certifications, and Class A2 pressure vessel manufacturing licenses.
Global Footprint: Equipment installed in 70+ countries with regional service branches in Vietnam and Indonesia.
FAQ
Q: How do I know whether a chain grate boiler is suitable for my fuel?
A: Fuel suitability depends on calorific value, moisture content, ash content, and particle size. Our engineering team evaluates your fuel analysis report before selecting the furnace configuration and combustion parameters.
Q: Can the boiler operate continuously without shutting down every day?
A: Yes. The traveling grate, automatic fuel feeding, and continuous ash removal system are designed for long-duration industrial operation when routine maintenance schedules are followed.
Q: How much operator intervention is required during normal operation?
A: With the PLC control system, routine operation mainly involves fuel replenishment, water treatment monitoring, and scheduled inspections, while combustion and safety functions operate automatically.
Q: How often should major maintenance be carried out?
A: Maintenance intervals depend on operating hours and fuel quality. Daily inspections, scheduled cleaning, and periodic inspection of grate components help maintain long-term performance.
Q: What information is required before selecting a boiler model?
A: Typical project information includes required steam capacity, operating pressure, fuel type, feedwater quality, installation location, local power supply, and environmental requirements.
Q: Can the boiler be integrated with existing steam systems?
A: Yes. The boiler can be designed to connect with existing steam pipelines, feedwater systems, condensate recovery systems, and plant control systems according to project requirements.
Q: What documents are provided before shipment?
A: The documentation package typically includes GA drawings, foundation drawings, P&ID, electrical diagrams, operation manuals, inspection reports, and spare parts lists.
Q: Are spare parts available after installation?
A: Yes. Common wear parts and critical spare parts can be supplied throughout the equipment service life, with recommended spare parts lists available for preventive maintenance planning.
Q: What support is available during installation and commissioning?
A: Technical engineers provide installation guidance, commissioning support, operating instructions, and troubleshooting assistance based on project requirements.
Q: What factors affect the service life of a chain grate boiler?
A: Service life is mainly influenced by fuel quality, water treatment, operating practices, scheduled maintenance, and regular inspection of pressure parts and combustion components.
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