Innovative concepts for reheating furnaces to improve energy efficiency and product quality

For carbon, stainless and silicon steel, CMI has developed its Optimfl@me® reheating furnace: a patented furnace design that considerably improves heating quality, decreases energy consumption, reduces pollutant emissions and increases production flexibility. The CMI reheating furnace is designed to most effectively equalize the temperature gradient within the steel slab, bloom or billet, by optimizing the transfer of generated heat to the surface of the steel stock to be heated to a maximum.  

Key features

  • Customized burner sizing, configuration and management, depending on the application, including CMI’s patented double regenerative burners (DRB)
  • Flat furnace shape with discharging chamber
  • Unique quick restart concept based on OnOffSoft® burners firing control
  • Scale Management in the furnace hearth, reducing scale formation, while increasing the time interval between stoppages for descaling
  • Low NOx emissions (lowest on the market)
  • Lower energy consumption (fuel consumption savings of up to 10%)
  • Decreased oxidation of steel

The Optimfl@me® global concept offers considerable competitive advantages: a yearly gain of more than 1% of furnace investment cost & a yearly output increase of 0.2%  with the same furnace capacity.

Furnace designs

  • Optimfl@me® walking beam (furnaces for slabs, blooms and billets)
  • Optimfl@me® walking hearth (furnaces for billets)
  • Optimfl@me® pusher furnaces (for slabs, blooms and billets)

Process controls

  • RTOP®: Furnace Level 2 expert software. A control system based on physical models according to the steel grade
  • SMC®: Skid Marks Calculation model to increase heating quality
  • Descalizer®: Scale Reduction on heated material (approx. 10%)

CMI Industry's value proposition

As a global partner with decades of experience and in depth-knowledge in the machinery and plant construction in steel and nonferrous metals processing, CMI Industry supplies « fit-to-purpose » engineered lines or equipment providing consistent product quality and increased production performance. (for more information: click here)

12.3.01 High Added V N°23 First strip out of CMI Thermline vertical furnace-4.jpg   4.3.00 Intro Industry - 68 - photo en splus Segal RIK_3847-27.jpg   14b.3.01 20150506 - VAMA CGL - Zinc Coating-44.jpg