Rotary hearth furnaces
Rotary furnaces for heating semi-finished steel products (ingots, semi-finished, products of various shapes and sizes).
The maximum operating temperature is 1,300 ° C, a temperature capable of guaranteeing the optimal forging process of the parts exiting from the kiln.
Heating usually takes place by means of regenerative or self-recuperative burners with the aim of considerably reducing the fuel consumption and, consequently, optimizing the heat exchange process.
The burners work in pulses and generate high turbulence inside the furnace chamber, making the heat exchange process more efficient and respecting the desired performances of temperature uniformity.
The insulating lining provided is specifically designed to ensure optimal performances of the furnace and can be made with refractory or fibrous material depending on the operating temperature and the required process characteristics.
Peculiarity of rotary furnaces
Peculiarity of this type of furnace is the rotating sole, the rotation of which allows continuous running heating of the components to be treated, thus requiring little installation space precisely because of the realization of a circular heating path.
Our systems can be customized to create a special self-supporting sole, which allows the customer to limit the impact of the foundation work.
The furnace can have a single door or two doors (for loading and unloading) depending on the pressing speed and on the type of charge.
The weight of the sole and the charge to be treated is supported by one or more rows of bevel wheels.
The movement kinematics of the sole is realized by means of different technologies depending on the diameter of the sole:
- Slewing wheels
- Rack
The rotation of the sole is controlled by an encoder which ensures the positioning accuracy required by the furnace loading and unloading device.
The automation manages the tracking of the pieces positioned on the sole, ensuring control of the entire process, interfacing with the company supervisor and with any handling system for the material to be treated.
