Filtration

Silicomanganese

Silicomanganese (88 KB  )

Application

4 semiclosed furnaces for the production of silicomanganese

Optimization Potential

The baghouse was originally designed to evacuate 3 furnaces, with the 4th furnace added later. The baghouse was deterring plant productivity and efficiency. Typical problems included: insufficient extraction at the furnaces, heat buildup under the hoods, poor bag filter availability, high emissions and high maintenance costs.

Solution

W. L. Gore & Associates installed GORE® membrane filter bags with acid resistant woven glass backing material, optimized system settings, and upgraded tensioning system.

Results

System optimization and installation of GORE® membrane filter bags resulted in the following improvements to the baghouse and overall production process:

  • Furnace extraction has been increased by 41%.
  • Eliminated blockage of furnace offtake ducts.
  • Hood temperatures have been reduced, leading to a reduction in maintenance under the furnace hoods.
  • Stack emissions are well below 5 mg/Nm3.
  • The need to reduce furnace power due to constraints imposed by the APC system has been eliminated.

After 7 years the original filter bags are still in operation.


FOR INDUSTRIAL USE ONLY.

Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations