Lowering emission in steel plant
Material for smelt iron, sintering of pillets
The overall steel group is focusing on lowering emission.
Emission was above 20mg/m3. Had to be lowered due to authority requirement. Goal: Below 8mg/m3.
Replacing bags with pleated bags. Installed August 2017.
|Bag filter||Pleated bag solution|
|Airflow in unit||210.000 m³/hour|
|Dusttype||Material for smelt iron|
|Collector running hours/year||8.000|
|Filter model||Filter bag||CPB130|
|Media/cloth type||Polyester w. ePTFE membrane||Spun bond pleatable polyester|
|Number of bags/cartridges||1.408||1.408|
|M² in each bag/cartridge||2,45||3,84|
|M² in unit||3.450||5.406
- Less wear of the filter media due to larger dropout box (3,9m shorter filter) = "Gravity-filtration" separates the larger dust particles.
- Lower dP.
- Lower emission than with conventional filter bags. Goal: Below 8mg/m3. After 5 month of operation: 0.6mg/m3.