Case Study:
Conversion of bags to pleated bags solved capacity problem at gypsum board production
Location:
- CROATIA
Operation:
Production of gypsum board
Dust type:
Gypsum, paper
Problem:
- Holes in bags
- High emission. Customer wants <10mg
- High dP - up to 22mbar. Customer wants 12-15mbar
- Lifetime max 1 year
Solution:
- Multifit pleated filter bags from Nordic Air Filtration were installed
TECHNICAL FACTS |
||
| BEFORE | AFTER | |
| Bag filter | Pleated bag Solution | |
| Dusttype | Gypsum, paper | |
| Collector type + running hours/year | Intensiv 5000 hours pr year | |
| Airflow m3/h | 18.500 | |
| Filter model | Conventional filter bag | Multifit pleated bags |
| Media/cloth type | PES Needlefelt | Polyester media with PTFE coating |
| Length mm | 4.000 | 2.000 |
| Number of bags/pleated bags | 80 | 80 |
| m² in each bag/pleated bag | 2 | 4,3 |
| m² in unit | 160 | 344 |
| Air-to-cloth ratio m3/m2/h | 116 | 54 |
Advantages:
- By installing pleated filter technology with more filter media area in the existing baghouse, the air-to-cloth ratio was lowered
- The shorter filters (4.000 vs. 2.000 mm) improves pre-separation of heavier dust particles in the hopper - before the particles reaches the filter media. This, with the lower air-to-cloth ratio and spun bond media charateristics, is a big part of why the filter life is prolonged
- Same pulsing equipment could be used with the pleated bags
Before:
Solution after:
Sales Representative:
MG