The invention discloses a
thermal treatment furnace
fire door without
water cooling, and relates to the technical field of
thermal treatment equipment. The
thermal treatment furnace
fire door withoutwater cooling comprises a
fire door frame. The fire door frame comprises a fire door base plate. A fire door
casting is arranged on the inward side of the fire door base plate. The fire door
casting comprises a plurality of first castings and four second castings, wherein the section of each first
casting is rectangular, and the section of each second casting is in the shape of an L. the first castings and the second castings are connected in sequence to define a rectangle, the second castings are located in the four corners of the rectangle, a cavity is formed in the middle of the rectangle,and the cavity is filled with
refractory fibers. A plurality of pieces of heat-resisting
cast iron are further arranged on the inward side of the fire door base plate and are evenly arranged outside the fire door casting, and the side, facing the fire door castings, of each piece of heat-resisting
cast iron is attached to the corresponding fire door casting. According to the thermal treatment furnace fire door without
water cooling, the fire door is cooled without adopting a
water cooling manner, the phenomenon that a fire door is prone to being corroded because of water
cooling temperature lowering is completely avoided, and the service life of the fire door is guaranteed.