The continuously increasing demands of the steel industry to the refractories require precise and optimized heating processes.


In addition to the most modern burner technology, strict compliance with standards and safety measures is the identifying feature of MEFKON. As a responsible manufacturer of heating systems, we consider consumption media such as gas, oxygen, compressed air and electricity as well as costs for maintenance and repair. Experience, know-how and innovative problem-solving skills enables us to find the best solution for our customers.

Technology


Efficiency


Highest efficiency through

  • A self-adapting heat shield suspension such as a cardanic suspension 
  • Gapless covering of the vessel due to a special hydraulic control and a lid mounting, similar to a cardanic suspension
  • Ultra light-weight concrete lining of the heat shield for a reduction of the thermal power input
  • Stoichiometric gas/air ratio control over the whole power regulating range with continuous temperature control
  • Two-stage exhaust gas radiation recuperator
  • Energy recuperation caused by a special flame shape
  • Continuous controlled oxygen enrichment of the burner air
  • Very high burner power regulating range (approx. 1 : 11 between max. and min. load)
  • Additional savings due to frequency-controlled blowers (savings in electricity of up to 65 %) 
  • Recommendation for the use of oxygen burner systems (savings in gas of approx. 70 %) 
  •  


High efficient drying processes based on

  • TWIN blower, secondary air system for an increase of the heat transfer by convection
  • Increase of the power regulating range by secondary air injection to approx. 1 : 30
  • Ultra low starting temperatures approx. 80 - 100°C with the oxygen enriched air burner system
  • Low starting temperatures at approx. 120°C
  • Uniform heat development inside the vessel of approx. +/- 10°C


High efficient and antipollution brick tempering processes caused by

  • Program controlled continuous oxygen injection
  • Secondary air injection for ladle bottom drying processes
  • Ladle housings with rim suction system and post combustion inside the vessel
  • Zero emission tempering process with an additional post combustion chamber
  • Increase of the power regulating range by secondary air to approx. 1 : 30
  • Ultra low starting temperatures approx. 80 - 100°C with the oxygen enriched air burner system
  • Low starting temperatures at approx. 120°C

Manufacturing principles


MEFKON heating systems are designed and manufactured using state-of-the-art technology. Every single heating system is completely assembled, wired and checked according to in-house quality standards and final functionality tests. After recording the quality and functionality tests, the heating system is dismantled into a few main components and prepared for shipment. Due to these extensive test procedures and the complete assembly, MEFKON has minimized the time needed to construct our products and put them into operation. 

Air Burner Flame

ENGINEERING PRINCIPLES

MEFKON Horizontal-Ladle-Preheater

Optimized operation
(at the touch of a button)

  • PLC controlled via touch panel and TCP/IP communication 
  • Web access to all recorded heater data for the best possible maintenance support

Easy maintenance
(clear and logical design of heating system)

  • Reduced number and increased lifetime of wear parts
  • Safe and easy access to all heater components
  • Monitoring of control pressures in order to determine maintenance requirements in advance
  • Data exchange with MEFKON server for external troubleshooting

Highest safety standards
according EN746-2:2010 

  • Only DIN DVGW certified components are used
  • Safety analyses according to machinery directive 2006 / 95 / EC performed by external experts
  • Production according DIN EN 1090-2 EXC2 (Technical Requirements for the Execution of Steel Structures), DIN EN ISO 3834ff (Quality Management System for Fusion Welding) and 97/23/EG (Pressure Equipment Directive)
  • Flame monitoring of the main burner for continuous flame monitoring (heating processes > 24h) 
  • Tightness check of gas valves after every burner off 
  • Continuous temperature control
  • High-temperature monitoring via double thermocouple
  • Continuous power regulation
  • Gas/air or gas/oxygen ratio monitoring
  • Only SIL certified components used

Lowest Emissions caused by

  • Special burner flame shape for low NOx values
  • Efficiency optimized heating cycles for low CO2 emissions
  • Usage of flameless burner systems
  • Continuous power control for oxygen burner