Sealing device at inlet of annealing furnace

The utility model provides an annealing furnace inlet sealing device which comprises an annealing furnace body and a shell fixedly connected to the inlet of the annealing furnace body, through holes are formed in a front end plate and a rear end plate of the shell, a lower sealing roller and an upper sealing roller which are arranged on the two sides of strip steel respectively are arranged in theshell, and the upper sealing roller is arranged in the shell in a lifting mode. A driving mechanism for driving the upper sealing roller to ascend and descend is arranged at the top of the shell; andthe impurity removing assembly is arranged on the front end plate of the shell and used for wiping the outer surface of the strip steel. According to the sealing device for the inlet of the annealingfurnace, the upper sealing roller is arranged in a lifting manner, and the distance between the upper sealing roller and the lower sealing roller can be adjusted according to the thickness of strip steel, so that the upper sea