Case Study:
Too high dP in cement raw mill transport collector
Location:
- SWITZERLAND
Operation:
Transport raw mill
Dust type:
Raw milled material
Problem:
High deltaP resulted in short lifetime (only 6 months with bags)
Dust on transport line = low suction
Solution:
Installation of Pleated Bags with PTFE coated spun bond polyester media from Nordic Air Filtration (in May 2015)
TECHNICAL FACTS |
||
| BEFORE | AFTER | |
| Bag filter | Pleated bag solution | |
| Airflow in unit | 12.000 m³/hour | |
| Dusttype | Raw material | |
| Collector running hours/year | 24/7 | |
| Filter model | Beth | CPB165 |
| Media/cloth type | Polyester | Polyester with PTFE coating |
| Length | 2.400 | 2.000 |
| Number of bags/cartridges | 72 | 72 |
| M² in each bag/cartridge | 1,16 | 4,00 |
| M² in unit | 84 | 288 |
Advantages:
- Lower dP due to increased media surface and thereby lower ATC-ratio (from 143 to 42 m3/m2/h). dP after 20 months: 800Pa
- Optimized suction
- Water- and oil repellent polyester media optimizes dust release
- Emission below 10mg/m3
- Lifetime increased more than 5-fold
Before:
Solution after:
Sales Representative:
MG