Case Study:

Petcoke - Pleated bags extended the life span of filters 14 times

Location: 

  • SLOVENIA

Operation:

Production of anodes and cathodes for Aluminium industry

Dust type:

Petroleum coke

Problem:

  • Short lifetime of filter bags - only 6-8 months - caused by high air-to-cloth ratio
  • Too high emissions

Solution:

By replacing the existing filter bags Pleated Bags from Nordic Air Filtration the following results were obtained:

  • The Spunbound media optimized filtration efficiency, thus lowering the emission
  • The larger filtration area (from 190m2 to 532m2) lowered the air-to-cloth ratio (from 184 m3/m2/h to 56 m3/m2/h)

TECHNICAL FACTS

   
  BEFORE AFTER
  Bag filter Pleated bag solution
Airflow in unit  35.000 m³/hour
Dusttype  Petroleum coke
Collector running hours/year  6.240
Filter model Filter bag Pleated Bag - CPB
Media/cloth type  Antistatic polyester with treatment Antistatic polyester
Length  2100 2000
Number of bags/cartridges  190 190
M² in each bag/cartridge  1 2,80
M² in unit  190 532

Advantages:

  1. Longer life cycle. Before filters were running 6-8 months between changeouts. Now Pleated Bag has run for 9 years (Spring 2008 to Spring 2017).
  2. Lower emission

Sales Representative:

MG