5000×2500×1500mm Industrial Electrical Bogie Heat Treatment
Furnaces With PLC Control
1. Application
The RT3-600-12 electric bogie hearth furnace is mainly used for
annealing and solution heat treatment of steel structure parts, alloy
parts and stainless steel parts, etc.
2.Main Technical Parameters
| No. | Item | Technical Parameters |
| 1 | Rated power | 600KW (1-100%) adjustable |
| 2 | Power supply | 380V, 3P, 50Hz |
| 3 | Rated temperature |
1250℃ (Normal working temperature: 850-1200℃) |
| 4 | Non-load furnace temperature rise speed | ≤2.5 hours |
| 5 | Control zone | 4 zones |
| 6 | Effective working size | 5000×2500×1500mm(L×W×H) |
| 7 | Furnace overall size |
5800×3600×2950mm(L×W×H) The height doesn’t include the height of furnace door frame |
| 8 | Bogie overall size | 6100×2600×950mm(L×W×H) |
| 9 | Floor area including the bogie inside and outside movement length | 12500*3000mm (L*W) |
| 10 | Heating element connection | Ｙ |
| 11 | Temperature uniformity | ±10℃ |
| 12 | Temperature measurement accuracy | ±1.5℃ |
| 13 | Non-load furnace power consumption | ≤18% |
| 14 | Temperature control method |
SCR, PID regulator; Shimaden temperature controller with 485 communication interface, 10.1 inch touch screen (it can record historical data, storage process, U disk export, screenshots and other functions, with overtemperature alarm) Touch screen+PLC control: the touch screen is connected to the customer’s computer. Communication mode: Modbus tcp interface. The furnace control cabinet transmits real-time data to the customer’s computer, and the customer's computer can control the operation and heating of the furnace remotely. |
| 15 | furnace surface temperature rise | ＜45℃ |
| 16 | Heating element | 0Cr27AL7Mo2 (strip) HRE |
| 17 | Bogie face plate | Cr25Ni20, 30mm thickness, heat resistant steel |
| 18 | Loading method | Product loaded on the bogie, and then bogie moves into the furnace |
| 19 | Furnace door opening method | 2ton Electric hoist up-down, sealed by the door self-weight |
| 20 | Bogie moving method | By the cycloidal pin gear speed reducer |
| 21 | Bogie driving power | 5.5KW |
| 22 | Furnace lining | High temperature Refractory fiber |
| 23 | Loading capacity | 10 tons |
3. Structural Introduction
The RT3-600-12 bogie hearth heat treat furnace is mainly comprised of furnace shell,
lining, furnace door and door compression system, bogie, heating element
and fixed device, and temperature control system.
3.1 electrical control system
Temperature control: the temperature of each heating zone of the industrail metal furnace can be
controlled separately.
The furnace adopts intelligent temperature controller to control the temperature which has
self-tuning function to calculate the ideal PID parameter and achieve a temperature stability.
The temperature controller has the functions of over-temperature alarm and thermal couple
breakage protection.
The bogie hearth furnace has 4 temperature control zones for controlling the linkage between the
temperature and the motor movements. Each zone is set with an over-temperature alarm.
The heating loop adopts the double-direction SCR and trigger control. The power is regulated
in the time proportional regulation manner.
The control actuation system is a large-power triggering one complete with a radiator and an
air cooling system. There is also an air switch. The heating loop is equipped with ammeter,
voltmeter, heating element on-off indicator, power-on interlock protection, and safe earthing
measures.
Movement control: The control system mainly controls the door up-down movement, door
compression, and door in-out movement. Also the movements are necessarily linked to
ensure the operation safety.
