Current Programmes > Air Pollution Control & Energy Conservation

2.3. CUPOLA FURNACES

The Cell is credited with successful commissioning of indigenously designed divided cold blast cupola (capacity less than 3T/hr) along with air pollution control equipment based on scrubbing technology in 1994. It has developed and commissioned two stage scrubbing technology for controlling particulate emissions from cupolas with molten capacity more than 3T/hr.

Salient Features of Cross Current Scrubber Technology:

• No ID fan required as thermal draft overcomes the resistance.
• Initial investment : Rs.80,000 – 90,000/-
• Negligible operation and maintenance cost.
• Emission levels

  • Before APCD : 1500 - 2500 mg/Nm3
  • After APCD : 210 - 275 mg/Nm3
• No chances of corrosion because of addition of Soda Ash in the scrubbing water.
• Coke saving :  2.5 tonnes equivalent to Rs.10,000/-  per heat.
• Pay Back Period  : Six months
• Scrubbing effluent is totally recirculated without being discharged, and fresh water is required for making up evaporation losses.

Technology replicated in 225 units.  

Contact persons :
Er. M.S.Jaggi, ms_jaggi@pscst.com
 

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