Kiln for sintering thermal insulation board

The utility model relates to a kiln for sintering thermal insulation boards, which belongs to the field of kilns and comprises a kiln wall and a kiln top which are of an integral structure, a thermal insulation interlayer is arranged outside the kiln wall and the kiln top, a plurality of processing sections are sequentially arranged along the length direction of the kiln, and fans are arranged on the processing sections. An exhaust pipeline communicated with the interior of the kiln is arranged on the upper portion of the kiln top, the draught fan is communicated with the exhaust pipeline, a plurality of observation holes are formed in the kiln walls at intervals and used for observing conditions in the kiln, curved seals and sand seal assemblies are arranged on the kiln walls on the two sides, and the curved seals and the sand seal assemblies are arranged in the length direction of the kiln. The sealing device is matched with a kiln car loaded with products to be fired to seal the kiln, and has the characteristics that the sealing performance is high, the energy consumption is greatly reduced, and the internal condition of the kiln is convenient to observe.