Large trolley type return furnace

USES:

Mainly used for heat treatment of large and medium metal or alloy parts at rated temperature

Equipment structure features:

The shell of this series electric furnace is welded by steel plate and section steel. The trolley is welded by section steel and section steel. The trolley reduces heat radiation and convection loss through soft contact with furnace lining and sand sealing mechanism, thus effectively ensuring the sealing of furnace body.

The ventilator is composed of a blower and a wind guide plate. The wind turbine and the heating element are electrically connected. Only when the blower is connected can the heating element be energized, so as to ensure that the heating element can work under the condition of ventilation cycle.

Furnace lining: the furnace body part adopts the whole fiber, the fiber is customized into modules according to the size of the furnace, the fiber is compressed into blocks to build cotton on site, fixed by the way of Pierce and hook nails, that is, evenly Pierce in the block fiber cotton, and then hook nails to Pierce the shaw, after tension and furnace body welding. The high aluminum brick is used in the compressive part of the trolley, and the thermal insulation brick is used in the lower part.

The lifting of the furnace door is realized by rolling up and down on the guide rail with the roller, and the advanced spring pressing device is used to seal, which not only ensures the anastomosis and sealing between the furnace door fiber and the furnace body fiber when it is closed, but also ensures that the fiber will not be damaged by friction during the opening and closing process. The power of the furnace door and the trolley is provided by the electric motor and has the controllable braking function.

Interlocking control is adopted for each movable mechanism of electric furnace, that is, automatically cut off the power supply of heating element after the furnace door is opened, and restore the power supply when the trolley is walking; When the furnace door is closed, the power supply of trolley traveling motor will be cut off automatically, and the power supply of heating element will be restored at the same time to prevent accidents due to misoperation.

Heating elements are made of ribbon and spiral wound with high temperature resistance alloy wire, which are hung on the furnace side and shelf shelf brick respectively, and fixed with high aluminum porcelain nail and shelf brick to prevent them from slipping out.

The bottom plate of the steel casting furnace is equipped on the platform to bear the workpiece. In order to prevent the oxide skin generated after the workpiece heating falling into the gap between the furnace bottom plate and the heating element and causing damage to the heating element, the furnace bottom plate and the furnace body contact place adopts the insertion type contact.

More than this furnace area temperature control, furnace temperature control system adopts advanced intelligent temperature control instrument to achieve heat within the furnace and furnace temperature control, this system has advanced intelligent pid control algorithm, five large LCD display, have perfect self-tuning, adaptive function, moderate control furnace temperature display at the same time, and can according to the requirements of the workpiece process for programming and control, automatic adjustment of control the chamber of a stove or furnace heating power, easy to operate, matching control system also has the acousto-optic overtemperature alarm, and other functions. The power trigger of the furnace temperature control system adopts the three-phase three-wire contact-free output module supporting the bidirectional silicon control, and the temperature control is accurate and stable. The system is also equipped with a temperature recorder, which can timely and accurately record the temperature of each furnace for inspection.