Holding gas furnaces, heating system NG/air

Technical parameters

Furnace volume
6, 7, 8, 10, 12 and 14 t of Al melting material
natural gas (5 kPa) + air fan
Furnace heating
UNIKOL automatic gas burner
Type of control system
Burner supplier
ÚVP Brno
Burner ignition
high voltage ignition
Flame watching
by UV sound
Burner regulation
continuous 0/MIN/SPORO/MAX, acc. to thermoelements in melting material and the furnace ceiling
Melting material refining
by nitrogen stones on the furnace bottom with flowage regulation
Melting material pouring out
hydraulic, double-speed tilting
Exhaustion of combustion products
in gate or furnace sidewall (as per the burner placing)
Furnace weighing
3 or 4 tensiometers under the hydro-cylinder and swing-down consoles

Holding gas furnaces, heating system NG+air

.pdf (389 kB)

The furnace operation follows by means of an external switchboard containing the complete electro equipment for automatic functioning of the holding furnace inclusively the main and breakdown switch. The PLC Siemens Simatic control system with visual representation enables changing of regimes, e.g. for tempering under lower temperature, controlled lining firing, reverse seeking of melting material temperature values etc. Temperature adaptation to thermoelements in ceiling and melting material. Hydraulic attending of furnace tilting. Visual representation of perimeters. Diagnosis of perimeter troubles. Nitrogen flow control.


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