Bag House Dust Collector — Manufacturer & Supplier, India
Vayuvents manufactures Bag House Dust Collectors for large-scale industrial dust collection — cement plants, steel mills, and power plants. 10,000 to 2,00,000 m³/hr, CPCB compliant. Mumbai. Call +91 90961 88703.
A Bag House Dust Collector is a large-scale fabric filter installation — typically for airflows of 10,000 m³/hr to 2,00,000 m³/hr or above — used in major industrial emission control applications at cement plants, steel mills, power plants, and large mineral processing facilities.
Bag houses are distinguished from smaller pulse-jet collectors by their multiple compartment construction — the bag house is divided into independent compartments, each of which can be isolated for cleaning or maintenance while the others continue operating. This allows online maintenance and bag replacement without process shutdown.
Vayuvents designs and manufactures bag house dust collectors with pulse-jet online cleaning (for continuous production) and reverse-air compartmentalised cleaning (for high-temperature and high-dust-loading applications where pulse-jet cleaning is less effective). The design is tailored to the specific process airstream, dust type, and CPCB emission compliance requirement.
Full system engineering includes: bag house structural design, civil foundation specification, duct design, fan selection, hopper discharge system, compressed air or reverse-air cleaning system, and controls with differential pressure monitoring.
Key Features & Benefits
Continuous Online Cleaning
Pulse-jet compressed air cleaning occurs while the fan runs — no shutdown required for filter cleaning, ensuring 24/7 continuous dust collection without production interruption.
High Filtration Efficiency
>99% efficiency for particles above 1 micron — meets CPCB outlet concentration norms of 10 to 50 mg/m³ for all industrial dust types.
Wide Filter Media Range
Polyester felt, PTFE membrane, antistatic, water-repellent, and high-temperature glass fibre bags — matched to the dust type, chemical composition, and temperature.
High-Temperature Service
Glass fibre bags rated to 260°C — suitable for cement kiln exit gas, metal furnace fume, and chemical process high-temperature dust streams.
Modular Construction
Modular bag house design — additional filter modules can be added as production expands without replacing the complete unit.
Integrated Dust Discharge
Rotary airlock valve with hopper — continuous dust discharge without interrupting the filtration airflow, maintaining efficient dust collection at all times.
Low Maintenance
Pulse-jet cleaned bags have significantly longer life than mechanically shaken bags — reduced bag replacement frequency and lower maintenance cost.
CPCB Compliant
System designed and sized to meet applicable CPCB emission standards at the stack outlet with certified filtration performance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Airflow Capacity | 10,000 to 2,00,000+ m³/hr |
| Cleaning Method | Pulse-jet (online) / Reverse-air (compartmentalised) |
| Filtration Efficiency | >99% for particles above 1 micron |
| Number of Compartments | 2 to 12 (per flow and maintenance requirement) |
| Filter Bags | Polyester / Glass fibre / PTFE membrane |
| Casing Material | MS / SS304 (heavy-gauge, 6 to 10mm) |
| Dust Discharge | Rotary airlock valve + screw conveyor / Pneumatic |
| Temperature Rating | Up to 260°C (glass fibre bags) |
| Standards | IS 6394 | IS 4894 | CPCB emission norms |
Product Images
Where It Is Used
- Cement plants — raw mill, cement mill, and packing plant dust collection
- Woodworking — sawdust, wood flour, and MDF dust final collection after cyclone
- Pharmaceutical manufacturing — API dust, excipient dust, and tablet press dust
- Food processing — flour, spice, sugar, and grain dust collection
- Chemical plants — pigment, dye, and fine chemical powder collection
- Metal grinding and shot blasting — fine metal dust final collection after cyclone
- Plastic and rubber — carbon black, PVC powder, and polymer dust collection
- Foundry and smelter — metal fume and fine dust final collection
- Power plants — fly ash and coal dust collection after ESP or cyclone pre-separator
- Fertiliser plants — urea, DAP, and potash dust collection at transfer points
- Stone crushing — limestone, granite, and aggregate fine dust collection
- Textile mills — lint, fibre, and fly collection from ring frame and weaving machines
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FAQs — Bag House Dust Collector
Both are fabric filter dust collectors that use cloth bags to separate dust from the airstream. The difference is the cleaning mechanism. A pulse-jet dust collector cleans bags using brief pulses of compressed air directed into each bag row — dislodging accumulated dust cake while the fan continues running (online cleaning). A bag house dust collector is a general term for any large fabric filter installation — which may use pulse-jet, reverse-air, or mechanical shaking cleaning. Large industrial installations are typically called bag houses regardless of the cleaning method.
A well-designed pulse-jet dust collector with polyester felt bags achieves greater than 99% mass filtration efficiency for particles above 5 microns. With PTFE membrane bags, efficiency exceeds 99.9% for particles above 1 micron, achieving outlet concentrations below 10 mg/m³. This meets the most stringent CPCB emission norms. The PTFE membrane prevents dust from penetrating the bag fabric — maintaining consistent high efficiency throughout the bag life.
Pulse-jet cleaning requires clean, dry compressed air at 5 to 7 bar pressure. A dedicated compressed air receiver (typically 200 to 500 litres) is installed adjacent to the dust collector to provide the instantaneous compressed air volume needed for each cleaning pulse. The air consumption is 2 to 5 Nm³/hr depending on bag count and cleaning frequency. Vayuvents sizes the compressed air requirement and receiver with each pulse-jet system.
For cement plant raw meal, cement, and fly ash dust: standard polyester felt bags are adequate for temperatures below 120°C. For cement kiln exit gas at 150 to 200°C: woven glass fibre bags with PTFE membrane are required. For dusty airstreams with moisture condensation risk: water-repellent treated polyester bags or PTFE membrane bags prevent bag blinding from moisture. Vayuvents selects the correct bag material based on your dust type, temperature, and moisture content.
In typical cement, mineral, and woodworking dust service, polyester felt bags last 2 to 4 years. PTFE membrane bags last 4 to 7 years. Bag life depends heavily on: dust abrasiveness (abrasive silica dust wears bags faster), chemical attack (acid gases damage standard polyester), temperature (exceeding bag rated temperature shortens life rapidly), and cleaning frequency (over-cleaning stresses bags). Vayuvents provides bag life estimates and replacement bag supply for all models.
Sticky or hygroscopic dust (some metal oxides, ammonium sulphate, food powders) can cause bags to blind — the dust cake does not release properly during cleaning pulses. Solutions include: (1) PTFE membrane bags that prevent dust penetration; (2) heated bag house to keep dust above its dew point and prevent moisture condensation; (3) water-repellent bag treatment; (4) more frequent cleaning pulses. Vayuvents assesses the dust characteristics and recommends the appropriate bag type and cleaning strategy.
Contact Vayuvents at enquiry@vayuvents.com or call +91 90961 88703. Share the dust type, airflow in m³/hr, inlet dust loading in g/m³, gas temperature, moisture content, and required outlet concentration. We will size the correct system and provide a technical and commercial proposal within 24 hours.