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NB 660 NB 4330/S  

NB 2880/S

Compact burners for standard models up to NB 600

Certain firing or sintering processes require a gas-fired chamber furnace. Short heating times due to the high power are a convincing argument. The chamber furnaces with powerful gas burners cover a wide variety of these processes. In the basic version the burners are manually ignited once at the start of the process. The automatic control system then takes over control of the temperature curve. At program end, the burners are automatically switched off. Depending on the process, the furnaces can be equipped with automatically controlled fan burners and safety technology for debinding. Especially in case of larger binder concentrations, gas furnaces have the advantage that the exhaust quantity can be significantly reduced as the binders are burnt off in the furnace, providing for downsizing of the exhaust cleaning.

  • Tmax 1300  °C
  • Powerful, atmospheric burners for operation with liquified gas or natural gas
  • Special positioning of the gas burners with flame guide top-down provides for good temperature uniformity
  • Fully automatic temperature control
  • Gas fittings with flame control and safety valve in accordance with DVGW (German Technical and Scientific Association for Gas and Water)
  • Multi-layer, reduction-proof insulation with light-weight refractory bricks and special back-up insulation result in low gas consumption
  • Self-supporting and rugged ceiling, bricks laid in arched construction or as fiber insulation
  • Dual shell housing, side panels made of stainless steel (NB 300), for low outside temperatures
  • Solid, dual shell door
  • Exhaust hood with 150 mm (NB 300) and 00 mm (NB 400, NB 600) diameter connection
  • Over-temperature limiter with manual reset for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load

Additional equipment

  • Fan burner with fully automatic control and ignition
  • Debinding technology
  • Exhaust air and exhaust gas piping
  • Thermal or catalytic exhaust cleaning systems
  • Recuperator technology for heat recovery
  • Process documentation and control with Controltherm MV software package, NTLog and NTGraph for the basic furnace or Nabertherm Control Center (NCC) for monitoring, documentation and control
 

Gas-Fired Bogie Hearth Furnaces up to 1400 °C for Firing or Sintering in Air or under Reducing Atmosphere

 
  WB 3360/14 for reducing firing of porcelain Combi furnace system consisting of one gas-fired furnace WB 11000HS and two additional bogies incl. bogie transfer system and incl. necessary park rails

Furnace chamber with eight high-speed burners

Gas-fired bogie hearth furnaces distinguish by their unique efficiency. The use of high-speed burners allows for short heating times. The burners are arranged according to the furnace geometry providing for a optimum temperature uniformity. Depending on the furnace dimensions, the burners can alternatively be equipped with recuperator technology to save energy. The high-quality, long-life fiber insulation with storage capacity provides for short heating and cooling times.

  • Tmax up to 1400 °C, depending on furnace design
  • Powerful, sturdy high-speed burner with pulse control and special flame control in the furnace chamber provide for optimum temperature uniformity
  • Operation with city gas, natural gas or liquified gas
  • Fully automatic PLC control of the temperature as well as monitoring of the burner function
  • Reduction-resistant fiber insulation with low heat storage provides for short heating and cooling times
  • Dual shell housing provides for low outside temperatures
  • Exhaust hood with fittings for further discharge of the exhaust gases
  • Over-temperature limiter with manual reset for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load

Additional equipment

  • Automatic lambda control to set the furnace atmosphere
  • Debinding package for debinding and sintering with corresponding safety technology
  • Exhaust air and exhaust gas piping
  • Recuperator burners utilizing part of the waste heat in the exhaust tract to preheat the combustion air and considerably contribute to energy saving
  • Thermal or catalytic exhaust cleaning systems
  • Process documentation and control with Controltherm MV software package, NTLog and NTGraph or Nabertherm Control Center (NCC) for monitoring, documentation and control

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