Bed Lances for Fluidized Bed Coal Boiler – Precision Combustion Delivery
Our bed lances for fluidized bed coal boiler are engineered to introduce primary fuel and auxiliary gases uniformly into the fluidized bed, ensuring stable combustion and optimal heat transfer. Designed for power‑generation plants, industrial cogeneration units, and large‑scale process heating, these lances combine high‑temperature alloys with modular construction to meet the demanding service conditions of modern coal‑fired systems.
How It Works – Controlled Atomization and Distribution
Each lance incorporates a precision‑machined nozzle, a swirl chamber, and a heat‑resistant lining that together create a fine, high‑velocity spray of coal particles and air. The swirl action atomizes the fuel, while the internal baffles guide the mixture into the bed at the prescribed angle, reducing dead zones and preventing agglomeration. The result is a consistent temperature profile across the bed, lower unburned carbon, and reduced emissions.
Technical Blueprint – Typical Specifications (customizable per order)
| Parameter | Standard Range | Units |
|---|---|---|
| Lance Length (overall) | 2.0 – 6.5 | m |
| Nozzle Diameter | 10 – 45 | mm |
| Maximum Service Temperature | 1200 – 1500 | °C |
| Material (inner lining) | Nickel‑based superalloy (e.g., Inconel 718) | – |
| Design Pressure | 1.5 – 3.0 | MPa |
| Connection Type | Flanged, threaded, or quick‑connect | – |
| Typical Lead Time | 15‑45 | days (order‑size dependent) |
Competitive Advantages – Why Our Lances Stand Out
- Thermal Resilience: High‑temperature alloys maintain structural integrity above 1500 °C, extending service intervals.
- Modular Design: Quick‑change nozzle kits reduce downtime during maintenance or when switching to alternative fuels.
- Optimized Flow Dynamics: CFD‑validated swirl geometry delivers uniform particle distribution, improving boiler efficiency by up to 3 %.
- Global Compliance: All units meet EN 13384, ISO 9001, and are compatible with the major boiler manufacturers’ certification programs.
- OEM / ODM Flexibility: We collaborate with OEMs to integrate proprietary monitoring ports, flow‑meter fittings, or custom‑length extensions.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a custom‑length lance?
Our standard MOQ is 5 units for fully customized dimensions. For off‑the‑shelf lengths we can ship as few as 1 piece, though larger batches benefit from reduced unit cost.
Can the nozzle diameter be tailored to specific coal grades?
Yes. We offer nozzle diameters from 10 mm to 45 mm and can provide intermediate sizes on request. Adjustments are made during the machining stage to match the pulverization characteristics of the target fuel.
What warranty and after‑sales support are provided?
All lances come with a 12‑month limited warranty covering material defects and workmanship. Our technical service team is available 24 h / 7 d for troubleshooting, spare‑part supply, and on‑site assistance.
Is the product compatible with existing boiler control systems?
The standard design includes standard‑size flanged or threaded connections that integrate seamlessly with most PLC‑based control panels. Custom instrumentation ports can be added during the ODM phase.
Ready to Upgrade Your Boiler Performance?
If you need reliable, high‑temperature fuel delivery for a fluidized‑bed coal boiler, our bed lances for fluidized bed coal boiler provide the durability and precision your plant requires. Contact our engineering sales team today to discuss specifications, request a quote, or arrange a technical workshop.