What is the operating process of the bright annealing furnace

What is the operating process of the bright annealing furnace

1. Hot furnace opening method:

Hot furnace means that the temperature in the furnace must be higher than 800°C. Before flushing the ammonia decomposition gas in the furnace, first use 99% pure nitrogen from the ammonia decomposition device to flush the pipes, flow meters, and muffle tanks. When the furnace is filled with ammonia decomposition gas, first open the vent valve and let it go. Then fill with ammonia decomposition gas into the furnace.

2. The normal use temperature of this set of equipment cannot be lower than 750°C. Not to pass any hydrocarbon gas during use to prevent explosion.

Three. Methods to deal with sudden power failure during normal use:

In the case of a short-term power failure (about 15 minutes), the operator should not be nervous, because the furnace and the ammonia decomposition furnace have a certain amount of heat, which is enough to ensure that the furnace is supplied with gas within 15 minutes. If there is no call in 15 minutes. Shut down the furnace according to the "Safety Regulations for Shutdown".

4. Shut down the furnace:

It is better to cool down evenly when shutting down the furnace, that is, all four temperature zones reach the same temperature and then cool down. (Then drop after 100°C) The reason is: due to the action of the fan. The four temperature zones have different cooling rates. It is not good for the muffle life cycle.

5. When the furnace is shut down for a long time and restarts, the ammonia decomposition furnace and adsorption tower should be activated and regenerated. Ensure the dew point quality of ammonia decomposition gas when starting the furnace. It is best to bake towers A and B in turn.

6. When changing the felt, stop the motor of the air-cooling section, and open the nitrogen knife at the mouth of the felt changing furnace. Close the door to maintain the pressure in the furnace.