How to clean the tube type experimental electric furnace?

The furnace pot of the tube-type experimental furnace is cleaned once a week during continuous production, and the cleaning of the intermittent production furnace should be carried out immediately after the furnace is shut down. When the cleaning temperature of the furnace tank is 850 ~ 870 ℃, all the chassis should be taken out. When the compressed air nozzle is used to blow in the feed from the tube-type experimental furnace, the valve should not be opened too much, and it should be moved back and forth to avoid partial overheating.