Products Description
Our bag filter dust use advanced fabric filtration and pulse jet cleaning to remove >99% of particulate matter from industrial air streams. It is suitable for temperatures up to 250 °C and is ideal for industries such as cement, steel, power generation, pharmaceutical, food processing, plastics and chemical manufacturing.
Working Principle
The system employs an automated pulse-jet cleaning cycle for continuous operation:
- Contaminated Air Inlet
Polluted airflow enters through an engineered distribution chamber, ensuring uniform gas dispersion.
- Multistage Filtration
As air permeates vertically arranged filter bags, particulate matter forms a self-sustaining "filter cake" on the fabric surface, while purified air exits via the upper manifold.
- Intelligent Self-Cleaning
Programmable compressed air pulses (0.4–0.6 MPa) periodically dislodge accumulated dust through reverse jet streams, maintaining optimal airflow resistance.
- Waste Management
Discharged particulates are securely conveyed via rotary airlock valves or enclosed screw feeders for recycling or eco-friendly disposal.
Key Features
Variety of materials, strong adaptability
Coated filter media (e.g. ePTFE membrane) can achieve surface filtration; anti-static fibers (e.g. carbon fiber blends) are used for explosive dust; flame-retardant materials are used for high-temperature open-flame working conditions.
High-efficiency filtration, environmentally friendly
Optimized structure, high efficiency in dust removal
Long life and economy
Technical Specifications
| Parameter | Typical Range | Notes |
| Gas Flow Rate | 1,000–50,000 m³/h | Modular sections |
| Filtration Velocity | 0.3–2 m/min | Across bag surface |
| Filtration Efficiency |
≥99% |
For particles ≥0.5 μm |
| Operating Temperature | –20 °C to 250 °C | Depends on bag material |
| Pressure Drop (Clean) | 100–200 Pa | Initial |
| Pulse Pressure | 4–6 bar | For pulse‑jet cleaning |
| Bag Material Options | PE, PP, PTFE, Nomex, SS mesh | Select per process conditions |
| Emission Concentration (Outlet) | <10 mg/Nm³ | Compliance with EU, US EPA standards |
Customer stories
Pharmaceutical Powder Plant
A large pharmaceutical manufacturer installed our PTFE‑coated filter bags on their API synthesis vents. Over 12 months, bag life exceeded 14 months (vs. 9 months previously), with no visible emissions and zero unplanned downtime, saving USD 120 k/year in maintenance and production losses.
Sugar Refinery
In a sugar refinery handling high‑moisture, sticky dust, our anti‑adhesive polyester bags ran 10 months between cleanings-2× longer than competitive units-while maintaining outlet dust below 5 mg/Nm³, ensuring compliance with environmental regulations.
Why Choose Us?
High Quality Bag Filter Dust Supplier
After‑Sales Support
24/7 hotline, spare parts inventory, and on‑site maintenance crews.
In‑House Testing Lab
Particle size analysis, bag permeability, and pulse‑jet optimization.
15+ Years Experience
Proven track record in global installations.
ISO & CE Certified
Quality management and CE compliance for international markets.
FAQ
Q: What is the expected bag life?
A: 6–18 months depending on dust abrasiveness, cleaning frequency, and material selected.
Q: Can it handle sticky or hygroscopic dust?
A: Yes-anti-adhesive membrane bags or pre-coating systems are available.
Q: How often should I inspect filter bags?
A: Visual and ΔP checks monthly, with full leak test and replacement cycle annually.
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