Why Choose Our Reciprocating Grate Coal Fired Boiler?
As a leading reciprocating grate coal fired boiler supplier, we understand the pressure on plant managers to deliver reliable steam while controlling fuel costs. Our boilers combine robust mechanical design with advanced combustion control, providing continuous steam generation for power, process heating, and district heating applications. Engineered for harsh environments and built to international standards, our units are the trusted choice for utilities, steel mills, cement plants, and large‑scale industrial complexes.
Key Competitive Advantages
- Proven Durability: Heavy‑duty cast iron and steel components withstand abrasive coal ash and thermal cycling.
- High Thermal Efficiency: Optimized grate motion and staged air supply achieve efficiencies of 85% + (upper range).
- Modular Design: Standardized sections allow quick on‑site assembly and future capacity upgrades.
- Compliance Ready: Designs meet EN 12952, ASME Section I, and ISO 9001 quality requirements.
- Flexible Fuel Handling: Accepts raw, pulverized or semi‑coked coal, with optional bag‑house or ESP integration.
Application Scenarios
Our reciprocating grate boilers are engineered for the most demanding steam users:
- Power Generation: 10–120 MW steam turbines in base‑load or peak‑load configurations.
- Process Industries: Continuous steam for chemical reactors, oil refineries, and paper mills.
- District Heating: Central plants supplying hot water to residential or commercial districts.
- Metallurgical Facilities: High‑temperature steam for furnace heating and cooling water systems.
Typical Specifications (customizable per order)
| Parameter | Range | Unit |
|---|---|---|
| Steam Capacity | 10 – 120 | MW |
| Operating Pressure | 10 – 25 | MPa |
| Design Temperature | 350 – 550 | °C |
| Grate Speed | 5 – 15 | rpm |
| Fuel Feed Rate | 500 – 2500 | kg/h |
| Typical Lead Time | 15 – 45 | days |
Product Overview
Our reciprocating grate coal fired boiler line features a mechanically driven grate that oscillates horizontally, promoting uniform coal distribution and thorough combustion. The system includes:
- Heavy‑duty drive gearbox with variable frequency drive (VFD) for precise speed control.
- Water‑cooled grate plates to extend service life.
- Automatic ash removal chute for continuous operation.
- Integrated low‑NOx burners and flue‑gas recirculation options.
- Remote monitoring via SCADA‑compatible sensors (temperature, pressure, oxygen, and ash level).
All components are fabricated in accordance with ISO 9001 quality management procedures, and each boiler undergoes a full factory acceptance test (FAT) before shipment. Our engineering team works closely with the purchaser to tailor grate dimensions, combustion air staging, and control logic to the specific fuel characteristics and steam demand of the project.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a custom‑spec boiler?
We have no strict MOQ; the design can be scaled from 10 MW up to 120 MW. Each unit is engineered to the buyer’s load profile, so the first order can be a single tailored boiler.
Can the grate be adapted for low‑ash or high‑ash coal?
Yes. Our modular grate plates are available in standard, wear‑resistant and high‑temperature alloys. We also provide optional ash‑handling accessories such as pneumatic ash conveyors or water‑spray quench systems.
What warranty and after‑sale support do you offer?
All new boilers come with a 24‑month parts warranty and a 12‑month comprehensive service agreement covering on‑site commissioning, training, and performance verification. Extended service contracts are available upon request.
How quickly can you deliver a 50 MW unit?
Typical lead time for a 50 MW reciprocating grate boiler is 30–40 days after final engineering sign‑off and receipt of the initial deposit. Shipping times depend on destination and chosen logistics method.
Ready to Power Your Facility?
Contact our sales engineering team today to discuss your steam generation needs, request a detailed quotation, or arrange a virtual plant walkthrough. As a dedicated reciprocating grate coal fired boiler supplier, we are committed to delivering a solution that maximizes uptime, meets regulatory standards, and protects your bottom line.
Send Your Inquiry Now