Multicyclone Dust Collector for Coal Stoker Boiler
Application Scenarios
Power‑generation plants, industrial heating facilities and large‑scale cement kilns rely on coal‑fired stoker boilers. In these environments, ash‑laden flue gases must be cleaned before discharge to meet environmental regulations and protect downstream equipment. Our multicyclone dust collector for coal stoker boiler is engineered to handle the high‑temperature, high‑humidity streams typical of these systems, delivering consistent particulate removal while tolerating the abrasive nature of coal ash.
- Utility‑scale coal‑fired power stations (≥200 MW)
- Industrial steam generators in steel and paper mills
- Cement and lime production lines with continuous stoker operation
- Retrofit projects where existing baghouses cannot meet new emission limits
How It Works
The unit combines a primary cyclone stage with a secondary multicyclone array. Hot flue gas first enters the primary cyclone where the bulk of large particles (>30 µm) are separated by centrifugal force. The partially cleaned gas then flows into a bank of 4‑12 small‑diameter cyclones, each optimized for sub‑micron ash capture. This two‑stage approach yields a dust concentration below 10 mg/Nm³ while maintaining a pressure drop of less than 0.25 kPa, allowing the boiler’s draft system to operate without excessive fan power.
Technical Specifications (customizable per order)
| Parameter | Typical Range | Unit |
|---|---|---|
| Design Flow Rate | 5 000 – 30 000 | Nm³/h |
| Inlet Gas Temperature | 150 – 350 | °C |
| Dust Removal Efficiency | ≥ 99 % | – |
| Maximum Pressure Drop | ≤ 0.25 | kPa |
| Material of Construction | Carbon steel, 304/316 stainless for corrosive service | – |
| Typical Lead Time | 15 – 45 days | depending on size |
All dimensions, cyclone count and material grades can be adjusted to match the specific boiler layout and local emission standards.
Competitive Advantages
- Low Operating Cost: The cyclone design eliminates the need for consumable filter media, reducing maintenance labor and replacement expenses.
- Robust to Abrasion: Hardened cyclone liners and reinforced inlet diffusers extend service life in high‑ash environments.
- Scalable Design: Modules can be added or removed without major shutdowns, supporting capacity expansion or seasonal load changes.
- Regulatory Ready: Meets EU‑EIA, US EPA 40 CFR Part 60 and China GB 16297 emission limits for particulate matter.
FAQ
What is the minimum order quantity (MOQ) for a custom‑size collector?
We can manufacture a single unit to meet a specific flow rate or pressure drop. The MOQ applies only to standard catalog models; custom dimensions are produced on a per‑order basis.
Can the unit be integrated into an existing boiler control system?
Yes. The collector includes optional analog (4‑20 mA) and digital (Modbus TCP) output signals for real‑time pressure drop and temperature monitoring, allowing seamless integration with most DCS or PLC platforms.
What warranty and after‑sales support are provided?
All new units ship with a 12‑month warranty covering material and workmanship. Technical support, spare‑part supply and on‑site commissioning assistance are available worldwide.
Is a multicyclone dust collector for coal stoker boiler suitable for retrofitting older plants?
Absolutely. Its compact footprint and low pressure‑drop characteristics make it ideal for retrofits where space and fan capacity are limited.
Ready to improve particulate control and lower operating costs on your coal‑fired stoker boiler?
Contact Our Sales Team Today