Asphalt Mixing Plant Coal‑Fired Heater – Factory Direct Solutions
The asphalt mixing plant coal fired heater factory delivers reliable, high‑temperature heating for continuous asphalt production. Designed for plant integrators and equipment distributors, our coal‑fired heating units provide stable heat output, low emissions, and robust construction that meets the rigorous demands of modern road‑building projects.
How It Works – Simple, Efficient Thermal Management
Coal is fed into a sealed combustion chamber where it is ignited by an electric spark igniter. The resulting flame heats a high‑efficiency heat‑exchange coil that transfers energy directly to the asphalt mix water‑oil slurry. Continuous temperature control is achieved through an integrated PLC controller, which modulates fuel feed and air flow to maintain the setpoint within ±2 °C.
The system operates on a closed‑loop water circulation, ensuring uniform heat distribution and protecting the mixer’s metal components from thermal shock. Exhaust gases pass through a low‑dust bag filter and a selective catalytic reduction (SCR) unit to meet local emission standards.
Competitive Advantages
- High Duty Cycle: Engineered for 24 × 7 operation with up to 95 % uptime.
- Fuel Flexibility: Accepts low‑grade coal and coal‑briquette blends, reducing material costs.
- Compact Footprint: Footprint as low as 3 m × 2 m, fitting tight plant layouts.
- Low Maintenance: Removable ash pan and self‑cleaning heat‑exchange surfaces extend service intervals to 12 months.
- Compliance: Meets ISO 9001, ISO 14001, and local environmental emission limits.
Typical Specifications (customizable per order)
| Parameter | Standard Range | Unit |
|---|---|---|
| Thermal Capacity | 250‑800 | kW |
| Maximum Operating Temperature | 180‑260 | °C |
| Fuel Consumption | 0.30‑0.55 | kg/kWh |
| Emission (SO₂) | ≤ 150 | mg/Nm³ |
| Control System | PLC‑based with HMI | – |
| Water‑in‑Oil Ratio | 0.6‑1.2 | % (by weight) |
*All values are indicative; final specs are adapted to your project requirements.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a custom‑configured heater?
Our factory works with both OEM partners and direct purchasers. The MOQ starts at one unit for standard models; for fully customized solutions the MOQ is typically three units to optimize tooling and engineering costs.
Can the heater be integrated into an existing asphalt mixing plant?
Yes. The unit includes standardized inlet/outlet flanges, a universal PLC interface, and optional skid‑mount brackets to match most plant layouts. Our engineering team provides layout drawings and on‑site installation support if required.
What warranty and after‑sales service are offered?
All heaters ship with a 12‑month comprehensive warranty covering parts and labor. Extended warranties up to 36 months are available. We maintain a regional spare‑parts depot and offer 24‑hour technical hotline support.
How does the asphalt mixing plant coal fired heater factory ensure compliance with emission regulations?
Our units are equipped with low‑dust bag filters and an SCR system that reduces NOₓ and SO₂ emissions to levels well below the limits set by EU Directive 2003/87/EC and comparable Asian standards. Certification documents are provided on request.
Ready to boost your plant’s productivity with a proven coal‑fired heating solution?
Contact Our Sales Team Today