Steam curing device for coal ash autoclaved aerated concrete blocks

The utility model discloses a fly ash autoclaved aerated concrete block steam curing device, and relates to the technical field of concrete production equipment, the fly ash autoclaved aerated concrete block steam curing device comprises a steam box, the inner wall of which is provided with a plurality of steam nozzles; the storage rack is provided with a plurality of layers and is used for placing concrete blocks; the spraying pipes are vertically arranged and inserted into the junction points of all the concrete block placing areas on the storage rack, spraying holes are formed in the positions, on all the layers of the storage rack, of the circumferential outer wall, and the top ends of the spraying pipes are opposite to the steam spraying openings in the top of the steam box in position; the connecting pipe is slidably connected to the top of the spraying pipe, and connecting rods are connected to the circumferential outer wall of the top of the connecting pipe; the adjusting rod is rotationally connected