30 tons medium frequency induction melting furnace

1. Description of 30 tons of molten steel furnace
30 tons of molten steel furnace: including pulse rectifier transformer, a frequency power supply, two sets of steel melting furnace and auxiliary PLC management systems and other components. The PLC-assisted smelting management system not only displays the real-time data and information of the power supply operation, but also displays the operating status and information of the entire system, and has automatic oven, cold furnace start, fault diagnosis, fault information display and storage, and operation information display. , system status display and other functions.
     Basic configuration: 24-pulse rectifier transformer (rated capacity 15000KVA), two sets of steel furnace, a frequency power supply, a set of inverters compensation capacitor structure 12 with power supply 24 double pulserectifier inverter parallel structure. The tilting method is hydraulically reversed with a remote control box.
  Parameters of ZSSP- 22000/ 10-1.5*4 rectifier transformer:
Electric furnace capacity (t) IF power (KW) Transformer capacity (KVA) Voltage combination Connection group label Impedance voltage (%)
Primary side (KV) Secondary side (V)
30T 20 000 22000 10 1500 Y/d11 6-8
  2 , 30T / 20000kw intermediate frequency coreless induction melting furnace main technical parameters
project Parameter requirement
30 tons of molten steel furnace form Medium frequency melting furnace
30 tons of molten steel furnace use Used for melting cast iron , carbon steel, etc.
Rated Capacity 30T
Maximum capacity 30T + 1 0%
Operating temperature 1700 ®C
Smelting material Cast iron , carbon steel
Lower discharge mode Hydraulic : hydraulic control
Working noise <85 decibels
Furnace structure Steel shell
Melting rate 30 T/h
Melting power consumption ≤ 52 0¯5% kW.h/t cast iron
≤ 55 0¯5% kW.h/ cast steel
Melting time 100 minutes / furnace
project parameter
Power supply 20000kw / 12 phase 24 pulse 30T
Number of rectifiers 24 veins
Inverter SCR parallel inverter
Rated frequency 250 Hz
Incoming AC voltage 1500 V
IF voltage 3000 V
Start success rate 100%
Power factor Greater than 0.9 5
Intermediate frequency power supply Circulating water flow m 3 /h 120
Inlet temperature ®C ≯35
Furnace (dig the pool) Temperature rise ®C ≯15
pressure Mpa 0.2-0.3
Circulating water flow m 3 /h 220
Inlet temperature ®C ≯40
Temperature rise ®C ≯20
pressure Mpa 0.25-0.3
C, furnace index
Serial number project 40 tons
1 Furnace shell structure Steel or aluminum
2 Furnace shell material 45 # steel
3 Panel thickness Thickening increase strength 20 mm
4 Yoke material Z11-0. 3
5 Yoke coverage 8 5%
6 Yoke clamping Stainless steel 1Cr18Ni9
7 Yoke cooling method Double water cooling
8 Sensor copper tube material T2 pure copper 99.9
9 Inductor copper tube specifications The total wall thickness ≥ 8mm is more than 5 tons
10 Sensor turns Main 匝 22 laps, 3 rounds of water cooling ring
11 Inductor insulation 3-way dipping paint, double-layer dressing, pressure resistance 8000V
  Sensor winding Long and double winding, machine winding (not hand-wound)
  Induction loop height 2000mm x2875mm
12 waterway 16 in 16 out , water connection hose
13 Way out Measure line
14 Water cooling ring material Copper tube
Furnace shell heat <75 ® C (except the furnace bottom and the furnace cover)
insulation The coil and the yoke are insulated by a double layer of mica board.
Refractory clay GROUT 563A US-Tianjin Union Products
bolt Ordinary carbon steel bolts are grade 8.8. Other bolts made of stainless steel or copper
Die thickness >5mm
Water connection hose Use non-flame retardant high insulation rubber tube
Water collector Stainless steel
Hydraulic pump Double pump double
Unit type Vertical
Hydraulic Components Yuci or domestic famous brand
Guaranteed angle of the furnace 0 to 95®
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