Coal Feeder Screw Conveyor for Industrial Boiler
Our robust coal feeder screw conveyor for industrial boiler delivers reliable, continuous fuel supply to high‑capacity steam generators. Engineered for heavy‑duty operation, the unit combines precision screw design, wear‑resistant casing, and easy‑maintenance features to keep boiler performance at peak while minimizing downtime. Whether you run a power plant, a large‑scale manufacturing facility, or a district‑heating system, this feeder ensures consistent coal flow, stable combustion, and optimal energy efficiency.
Technical Specifications
| Parameter | Range / Options |
|---|---|
| Screw Diameter | 100 mm – 300 mm |
| Length (incl. inlet/outlet) | 2 m – 12 m (modular sections) |
| Material of Construction | Carbon steel, hardened alloy, or stainless steel (per client) |
| Maximum Throughput | 0.5 – 4 t/h (adjustable by speed) |
| Operating Speed | 30 – 150 rpm (variable‑frequency drive optional) |
| Power Rating | 7.5 kW – 45 kW |
| Ambient Temperature | -20 °C to +50 °C |
| Warranty | 12 months standard, extendable on request |
Application Scenarios
The conveyor excels in environments where continuous, high‑temperature fuel feeding is critical. Typical installations include:
6 ton industrial coal steam boiler factory
- Coal‑fired utility boilers (≥50 MW) needing steady mass flow for low‑NOx combustion control.
- Industrial steam generators in petrochemical complexes where reliability directly affects process uptime.
- District‑heating plants with multiple boiler trains that require synchronized fuel distribution.
- Power‑generation retrofit projects where space constraints demand compact, modular screw feeders.
In each case, the design can be tailored to match the specific coal grade, moisture content, and boiler feed pressure, ensuring seamless integration with existing feed systems.
Competitive Advantages
What sets our feeder apart from standard market offerings?
- Modular Design: Sections can be added or removed on‑site, allowing capacity upgrades without major shutdowns.
- Wear‑Resistant Linings: Hardened alloy or ceramic inserts protect the housing from abrasive coal particles, extending service life beyond 10 000 h.
- Energy‑Efficient Drive: Optional VFD control matches load demand, reducing motor consumption by up to 15 %.
- Compliance & Safety: Engineered to meet IEC 60204‑1 electrical safety and EN 12475 boiler‑feed standards, with built‑in explosion‑proof sealing for dusty environments.
- Rapid Installation: Pre‑aligned bearings and self‑locking couplings cut commissioning time by up to 30 %.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a custom‑size conveyor?
We can manufacture a single unit to your exact dimensions. The MOQ applies only to standard‑size stock models (typically 5 units). Custom orders are quoted individually.
Can the screw pitch be adjusted for different coal grades?
Yes. Our engineering team can modify the pitch, flight depth, and helix angle to optimise feed for low‑volatile, high‑ash, or high‑moisture coal, ensuring consistent throughput and reduced blockage risk.
What is the typical lead time?
Standard models ship within 15‑30 days after order confirmation. Fully customised solutions require 30‑45 days, depending on material selection and engineering complexity.
Do you provide on‑site installation and training?
Our technical service team offers optional installation, alignment, and operator training packages. These services can be scheduled to coincide with your plant’s planned shutdown window for minimal disruption.
Ready to Optimize Your Boiler Fuel System?
Contact our engineering sales team today to discuss capacity, material options, and pricing. Let us design a coal feeder screw conveyor that meets your plant’s performance goals.
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