Shanghai Electric Heavy Machinery 15t Induction Furnace
15T medium frequency steel shell induction melting furnace technical specification and complete set range
1)Technical program and specification
This program is recommended that whole set equipment of the furnace shall be equipped with two furnace bodies user can be readjusted by practical needs.
1.1 Technical program
The main equipment of this program is included 2 4000KVA rectification transformer, 4 Low voltage control cabinet, 4 MF power supply cabinet, 2 15t MF induction furnace, 1 hydraulic station, 1 cooling water device, and other auxiliary device. The electric system diagram is as follows:
2)Products standard and operating conditions
2.1Products standard:
GB10067.3-88 'Basic specifications for electroheat installations_Induction electroheat installations'
GB10067.1-88 'Basic specifications for electroheat installations_General'
GB10066.3-88 'Test methods for electroheat installations_Induction crucible furnace'
GB5959.1-88 'Safety in electroheat installations_General requirement'
GB5959.3-88 'Safety in electroheat installations_Particular requirements for induction and conduction heating installations and induction melting installations'
GB/T4280-93 'Medium frequency coreless induction furnace'
GB/T8669-1997 'Semiconductor frequency conversion devices for medium frequency induction heating'
2.2 Operating conditions
2.2.1 Cooling water conditions
PH: 7-8.5
Hardness: <10degrees(Each degree that 1Lwater contains less than 10mg calcium oxide)
Total solid content: <250mg/L
Water resistance: (Power)>100KΩ-cm
(Furnace)>2KΩ-cm
2.2.2 Power supply conditions
A. Three-phase voltage unbalanced <5%
B. Voltage fluctuations <± 5%
C. Voltage waveform distortion factor <10%
2.2.3 Geographical environment
A. Altitude above sea level <1000m
B. Temperature 5~40C
C. Relative humidity <90%(20C)
D. No conductive dust, explosive gas and corrosive gas around the equipment.
E. Avoid strong shake and concussion.
3)Electrical Technique Instruction
Electrical parts of the equipment include rectification transformer, low-voltage switch cabinet, medium frequency power cabinet, filter reactor, and compensation capacitor bank and water tank.
3.1 Rectifying transformer
This equipment uses special-purpose rectification transformer, which transforms 35KV or 10KV high voltage of the electrical network to 950V, which is suitable for the solid state power.
There is a no- load manual changer at the high voltage side of transformer, output voltage can be adjusted at -5%, 0, +5%. It is used to suit the deviation of grid. In order to ensure the safety of silicon-controlled rectifier and avoid to impact on the grid, this transformer request the big short circuit resistance value 10%, simultaneously adds the shielding layer between the primary and secondary-coils. There are a gas relay and the oil thermometer on the power transformer, its output is interlock with high-voltage switch cabinet, when there appears the gas alarm or higher oil temperature, it will automatically turn off the power.
Cooling of the Transformer uses the oil-filled self-cooling.
3.2 Low-voltage switch cabinet
The low voltage switch-automatic air circuit breaker(DW15_1000V) is installed between the transformer output and the medium frequency power input, it is used in the make-and-break and isolates the overhaul of power source for maintenance.
The air circuit breaker has fast broken for overload protection and the no voltage release protection.
3.3 Medium frequency power source
Controllable medium frequency power supply is AC_DC_AC equipment. It uses silicon-controlled rectifier to change there-phase DC to single-phase AC. The equipment is strongly adoptive to any load, and is widely used in metal melting, heat treatment, and crystal's growth. The medium frequency source made by our company has some special feature list below:
Induction furnace is used for smelting or insulating ferrous metals, non-ferrous metals, sponge iron, such as scrap iron, scrap steel, copper, aluminum and so on. Complete working equipment such as continuous casting machine, rolling mill, mainly used for the production of billet, steel bar, angle steel, H-beam, I-beam, etc. Using KGPS, IGBT, single or double power supply technology, PLC (Siemens) can be realized throughout the monitoring.
Main supply list: 2 sets of electric furnace body, 2 sets of hydraulic or mechanical tilting electric furnace mechanism, 1 set of control platform, 1 set of intermediate frequency control cabinet (6 pulse 1, 12 pulse 2, 24 pulse 4), low voltage control cabinet (6 pulse 1, 12 pulse 2, 24 pulse 4), 1 set of capacitor cabinet, 4 or 8 water-cooled cables; 1 water temperature alarm, 1 leakage alarm; 1 crucible mold, 1 liquid One batch of pressure steel pipe, one set of copper row, three water tanks. Transformer, cooling tower, furnace builder, furnace lining ejector, furnace cover.
KGSP Induction Electric Furnace
GW-8-4000-0.5J KGSP Induction Electric Furnace
GW-1-750-1JJ Medium frequency coreless electric furnace
GW-50-22000-0.2J No induction melting furnace
GW-0.25-160-1JJ melting electric furnace
GW-1.5-1000-1J Medium frequency induction furnace
NO. |
Electric
Furnace
Type |
Input
power
(KW) |
input
voltage
(V) |
Input
current
(A) |
Rated
power
(KW) |
DC
current
(A) |
DC
voltage
(V) |
Melting
rate
(T/H) |
working
frequency
(HZ) |
working
voltage
(V) |
cooling water
pressure(MPA) |
Rated
capacity
(T) |
Power
consumption
(KWH/T) |
Power
Supply |
Furnace
body |
1 |
GW-0.25-160/1JJ |
180 |
380
(6 Pulse) |
256 |
160 |
320 |
500 |
0.24 |
1000 |
750 |
0.1~0.15 |
0.25~0.3 |
0.25 |
790 |
2 |
GW-0.5-250/1JJ |
280 |
380
(6 Pulse) |
400 |
250 |
500 |
500 |
0.4 |
1000 |
1500 |
0.1~0.15 |
0.25~0.3 |
0.5 |
770 |
3 |
GW-0.5-250/1J |
280 |
380
(6 Pulse) |
400 |
250 |
500 |
500 |
0.4 |
1000 |
1500 |
0.1~0.15 |
0.25~0.3 |
0.5 |
770 |
4 |
GW-0.75-400/1JJ |
400 |
380
(6 Pulse) |
650 |
400 |
800 |
500 |
0.6 |
1000 |
1500 |
0.1~0.15 |
0.25~0.3 |
0.75 |
770 |
5 |
GW-0.75-400/1J |
400 |
380
(6 Pulse) |
650 |
400 |
800 |
500 |
0.6 |
1000 |
1500 |
0.1~0.15 |
0.25~0.3 |
0.75 |
770 |
6 |
GW-1-500/1JJ |
550 |
380
(6 Pulse) |
800 |
500 |
1000 |
500 |
0.8 |
1000 |
1500 |
0.1~0.15 |
0.25~0.3 |
1 |
750 |
7 |
GW-1-750/1JJ |
800 |
380/690
(6 Pulse) |
1200/
700 |
750 |
1500/
850 |
500/
880 |
0.9 |
1000/
500 |
1500/
2600 |
0.1~0.15 |
0.25~0.3 |
1 |
720/660 |
8 |
GW-1-750/1J |
800 |
380/690
(6 Pulse) |
1200/
700 |
750 |
1500/
850 |
500/
880 |
0.9 |
1000/
500 |
1500/
2600 |
0.1~0.15 |
0.25~0.3 |
1 |
720/660 |
9 |
GW-1.5-1000/0.5JJ |
1100 |
690
(6 Pulse) |
912 |
1000 |
1140 |
880 |
1.2 |
500 |
2600 |
0.1~0.15 |
0.25~0.3 |
1.5 |
700 |
10 |
GW-1.5-1000/0.5J |
1100 |
690
(6 Pulse) |
912 |
1000 |
1140 |
880 |
1.2 |
500 |
2600 |
0.1~0.15 |
0.25~0.3 |
1.5 |
700 |
11 |
GW-2-1500/0.5JJ |
1650 |
690
(6 Pulse) |
1360 |
1500 |
1700 |
880 |
1.7 |
500 |
2600 |
0.1~0.15 |
0.25~0.3 |
2 |
675 |
12 |
GW-2-1500/0.5J |
1650 |
690
(6 Pulse) |
1360 |
1500 |
1700 |
880 |
1.7 |
500 |
2600 |
0.1~0.15 |
0.25~0.3 |
2 |
675 |
13 |
GW-2-2000/0.5JJ |
2200 |
690
(6 Pulse) |
1400 |
2000 |
2275 |
880 |
1.9 |
500 |
2600 |
0.1~0.15 |
0.25~0.3 |
2 |
650 |
14 |
GW-3-2500/0.5JJ |
2750 |
690/950
(6 Pulse) |
2275/
1700 |
2500 |
2840/
2080 |
880/
1250 |
2.56 |
500 |
2600/3200 |
0.1~0.15 |
0.25~0.3 |
3 |
610/560 |
15 |
GW-3-2500/0.5J |
2750 |
690/950
(6 Pulse) |
2275/
1700 |
2500 |
2840/
2080 |
880/
1250 |
2.56 |
500 |
2600/3200 |
0.1~0.15 |
0.25~0.3 |
3 |
610/560 |
16 |
GW-4-3000/0.5J |
3300 |
690/950
(6 Pulse) |
2730/
2040 |
3000 |
3410/
2500 |
880/
1250 |
3.2 |
500 |
2600/3200 |
0.1~0.15 |
0.25~0.3 |
4 |
610/560 |
17 |
GW-5-4000/0.5J |
4400 |
950
(6 Pulse) |
2300 |
4000 |
3330 |
1250 |
5 |
500 |
3400 |
0.1~0.15 |
0.25~0.3 |
5 |
600/550 |
18 |
GW-6-4000/0.5J |
4400 |
950
(12 Pulse) |
2300 |
4000 |
3330 |
1250 |
5 |
500 |
3400 |
0.1~0.15 |
0.25~0.3 |
6 |
600/550 |
19 |
GW-8-5000/0.5J |
5000 |
950
(12 Pulse) |
3400 |
5000 |
4200 |
1250 |
7~8 |
500 |
3400 |
0.1~0.15 |
0.25~0.3 |
8 |
600/550 |
20 |
GW-10-6000/0.5J |
6300 |
950
(12 Pulse) |
3750 |
6000 |
4600 |
1250 |
8.5~9 |
500 |
3400 |
0.1~0.15 |
0.25~0.3 |
10 |
600/550 |
21 |
GW-12-8000/0.25J |
8000 |
950
(12 Pulse) |
4900 |
8000 |
6000 |
1250 |
9~10.5 |
250 |
3400 |
0.1~0.15 |
0.25~0.3 |
12 |
600-550 |
22 |
GW-15-8000/0.25J |
8000 |
950
(12 Pulse) |
4900 |
8000 |
6000 |
1250 |
9~10.5 |
250 |
3400 |
0.1~0.15 |
0.25~0.3 |
15 |
600-550 |
23 |
GW-15-10000/0.25J |
10000 |
950
(24 Pulse) |
6500 |
10000 |
8000 |
1250 |
13~15 |
250 |
3400 |
0.1~0.15 |
0.25~0.3 |
15 |
600-550 |
24 |
GW-18-12000/0.25J |
12000 |
950
(24 Pulse) |
8160 |
12000 |
10000 |
1200 |
15~17 |
250 |
3400 |
0.1~0.15 |
0.25~0.3 |
18 |
600-550 |
25 |
GW-20-12000/0.25J |
12000 |
950
(24 Pulse) |
8160 |
12000 |
10000 |
1200 |
17~19 |
250 |
3400 |
0.1~0.15 |
0.25~0.3 |
20 |
600-550 |
26 |
GW-25-14000/0.25J |
14000 |
950
(24 Pulse) |
9460 |
14000 |
11600 |
1200 |
19~21 |
150~200 |
3400 |
0.1~0.15 |
0.25~0.3 |
25 |
600-550 |
27 |
GW-30-16000/0.2J |
16000 |
950
(24 Pulse) |
10850 |
16000 |
13300 |
1200 |
21~23 |
150~200 |
3400 |
0.1~0.15 |
0.25~0.3 |
30 |
600-550 |
28 |
GW-40-20000/0.2J |
20000 |
950
(24 Pulse) |
13545 |
20000 |
16600 |
1200 |
25~27 |
150~200 |
3400 |
0.1~0.15 |
0.25~0.3 |
40 |
600-550 |
29 |
GW-50-22000/0.2J |
22000 |
950
(24 Pulse) |
14932 |
22000 |
18300 |
1200 |
25~28 |
150~200 |
3400 |
0.1~0.15 |
0.25~0.3 |
50 |
600-550 |
Note:
(1) GW - means medium frequency induction furnace, - 1 - means induction furnace capacity of 1 ton, - 500 - means furnace rated power of 500 KW, / 1 - means furnace operating frequency of 1000 Hz, / 0.5 - means melting furnace frequency of 500 Hz, - J - means hydraulic tilting furnace (furnace shell is steel shell), - JJ - means mechanical tilting furnace. (the shell of the furnace is aluminum alloy).
(2) The above quoted price is for routine configuration. Other configurations can be added, such as leak alarm, water temperature alarm, furnace switch, cover mechanism, lining ejector and transformer, cooling device (open and close cooling tower, closed cooling tower, plate heat exchanger)
3) If necessary, send technicians to carry out the commissioning: the domestic section is free; the overseas section travel expenses, accommodation and food are borne by the user and each person is subsidized 150 US dollars per day.
4) I quote EX-W at a price including simple packing, including shipping charges to Shanghai port area and all inland charges in China.
V) The above electric furnace voltage levels are 380V, 690V and 950/1000V, and the frequency is 50HZ. If the user equipment requirements are different from the above voltage levels and frequencies, each item needs to be increased by 15000USD.