Passivation drying furnace

The utility model discloses a passivating and drying furnace which comprises a furnace body which is vertically arranged and is at least 10 meters high; the plurality of heating pipes are fixed in the furnace body to form a heating chamber in the furnace body and are used for passivating and drying the steel plate; the protection net is arranged between the heating pipe and the steel plate; the doors and windows are arranged on the two sides of the top end of the side face of the furnace body, the doors and windows are rotatably connected to the furnace body, and the interior of the furnace body can be observed through the doors and windows. According to the utility model, the accurate position of scratches can be clearly found, the scratches can be timely processed, shutdown is avoided, the problem of scratches can be solved in the shortest time during normal operation, and the loss is reduced. 本实用新型公开了一种钝化烘干炉，其包括：炉体，其有竖向设置的，至少有10米高；加热管，其有多个，多个所述加热管固定在炉体内，形成炉体内部的加热室，用于钢板的钝化烘干；保护网，其设置在加热管和钢板之间；门窗，其设置在所述炉体的侧面顶