Case Study:

Cement mill baghouse - mAramid media

Location: 

  • IRAN (ISLAMIC REPUBLIC OF)

Operation:

Cement mill / finish mill baghouse

Dust type:

Dust from cement milling of clinker

Problem:

When optimizing existing baghouse, customer - Khuzestan Cement Company - wanted to get the advantages from the Pleated Bag:

  • Longer lifetime due to lower air-to-cloth ratio
  • Lower emission-level due to different media construction
  • Avoid abrasions in bottom of filter bags when filters scrub against bag house steel construction

Solution:

  • 756 steel top loader Pleated Bags from Nordic Air Filtration was installed
  • Installation was supervised by the Nordic Air Filtration + agent engineering team

TECHNICAL FACTS

   
  BEFORE AFTER
  Bag filter Pleated bag solution
Airflow in unit  77.400 m³/hour
Dusttype  Milled clinker
Collector running hours/year  8.760
Filter model Filter bag CPBS Steel top loader
Media/cloth type  mAramide Pleated mAramide
Length  4.600 2.000
Number of bags/cartridges  756 756
M² in each bag/cartridge  1,80 2,4
M² in unit  1.360 1.814
Air-to-cloth ratio (m3/m2/h) 56 42
Bag house type FLS Uniclean FLS Uniclean

Advantages:

  • Lower dP
  • Expected longer lifetime than with exisiting solution
  • Lower usage of compressed air due to easier dust release
  • Easy first-time installation - also due to supervision from Nordic Air Filtration and agent
  • No holes in bottom of filter bags

Before: 

Solution after: 

Sales Representative:

STM