Furnace lid device of large fluidizing chlorination furnace without perforated plate

The invention discloses a furnace lid device of a large fluidizing chlorination furnace without a perforated plate. The furnace lid device is composed of a conical furnace lid and a top cover, wherein a foundation ring of the conical furnace lid is welded with a chlorination furnace shell, the top cover is a flat top cover, the conical furnace lid is connected with the top cover by flanges, a flexible graphite sealing ring is arranged between the flanges, a tamping layer is arranged in the conical furnace lid and the top cover, and a stainless steel bar is arranged in the tamping layer. According to the furnace lid device, the problem of leakage and blockage of the furnace lid in a production process of the large fluidizing chlorination furnace and the problems of environment protection and safety, caused by the blockage of a passage of the furnace lid, can be solved, the potential safety hazards caused by tamping and hoisting of the furnace lid can be eliminated, and the yield of the chlorination furnace per unit can be increased.