How to Replace Heating Elements in a Pusher Kiln

Key Considerations for Replacing Heating Elements in Pusher Furnaces

During the operation of pusher furnaces, the replacement of heating elements is a common issue. Below is a summary of the key points to note when replacing the electric heating elements of pusher furnaces.

1. The heating element to be replaced must have the same specifications as the other existing heating elements to avoid potential problems.
2. Install the rod plugs and rod clamps properly, place them into the holes for holding heating elements on the top of the pusher furnace, and connect the conductive plates securely.
3. When replacing electrical elements, the pusher furnace must first be cooled down. It is important to note that the temperature must be reduced to below 500°C before turning off the power supply.
4. When installing fuses (including quick-acting fuses), turn off the main power supply of the pusher furnace first, then proceed with the replacement.
5. The resistance value of the molybdenum disilicide rod elements in pusher furnaces does not change with the length of service time; therefore, new and old elements can be used together.
6. During the actual replacement operation, operators must take appropriate safety protection measures to prevent accidents. Unauthorized personnel are strictly prohibited from entering the operation area.

Pusher furnaces are generally used in large-scale mass production lines. To ensure the normal operation of the electric furnace and avoid affecting production, it is essential to carry out proper maintenance and upkeep of the pusher furnace.