Induction furnace
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Induction Furnace
50T medium frequency steel shell induction melting furnace
Ⅰ 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 13000KVA rectification
transformer, 4 low voltage control cabinet, 4 power supply cabinet, total power is 26000KW. 2 50t MF induction furnace, 1 hydraulic station (double motor double pump, type electromotion), 1 cooling water device, and other auxiliary device. The electric system diagram is as follows：
The output of MF power supply is changed by furnace-changing switch, for the purpose of maintenance and alternative melting
Description:
|
Name |
Unit |
Parameter |
Remark |
|
|
Rated capacity |
t |
50 |
|
|
|
Max load capacity |
t |
60 |
|
|
|
Rated power |
kw |
26000 |
|
|
|
Working frequency |
Hz |
150 |
|
|
|
Melting rate |
t/h |
30-35 |
1600℃ |
|
|
Power consumption |
kw.h/t |
560-590 |
1600℃ |
|
|
Inductor inner diameter |
mm |
Φ2220 |
|
|
|
Height of inductor |
mm |
3000 |
|
|
|
Rated temperature of the working |
℃ |
1600 |
|
|
|
Incoming voltage |
v |
1000 |
|
|
|
Incoming current |
A |
4050 |
|
|
|
Electric rectificate mode |
|
24 pulse |
|
|
|
Voltage of inductor |
V |
3400 |
Double voltage |
|
|
Cooling water of the furnace |
Pressure of incoming water |
Mpa |
0.25~0.3 |
|
|
Temperature of incoming water |
℃ |
≤5~35 |
|
|
|
Temperature of outlet water |
℃ |
≤55 |
|
|
|
Flow rate ( furnace body) |
t/h |
460 |
Single furnace (230) |
|
|
Flow rate ( power source) |
t/h |
160 |
|
|
|
Water temperature rise of power source |
℃ |
10 |
|
|
|
Cooling water pressure for power source |
Mpa |
0.1~0.2 |
|
|
|
Hydraulic system |
Working pressure |
Mpa |
12 |
Doublemotor, double pump |
|
Flow rate |
L/min |
190 |
|
|
|
Hydraulic medium |
|
Antiwear hydraulic oil
|
Summer：N68 Winter： N46 |
|
|
Diameter of the hydraulic cylinder |
mm |
Φ320 |
|
|
|
Capacity of the transformer |
KVA |
13000×2sets |
( Reference ) |
|
|
Primary voltage |
KV |
10 or 35 |
|
|
|
Secondary voltage |
V |
1000 |
|
|
|
Connection way |
|
Extension triangle phase shift ±7.5º namely：D（+7.5º）dyn D（-7.5º）dyn |
|
|
|
Impedance voltage |
|
8～9% |
|
|
|
Phase number |
|
3 phase input,6 phase output |
|
|
|
Pressure adjustment way |
|
No excitation |
|
|
|
Cooling way |
|
Strong grease |
|
|
