Device for fixing rotating steam air heater of boiler

The invention discloses a device for fixing a rotating steam air heater of a boiler. The device comprises taper-hole metal blocks which are fixed at upper and lower corners of a windward side and a leeside of a rotating steam air heater main body, and screws, wherein air duct thickening plates and through-hole metal blocks are sequentially fixed at positions, which are opposite to the taper-hole metal blocks, on the outer sides of an upper air duct cover plate and a lower air duct cover plate; threaded holes are formed at corresponding positions of the air duct thickening plates, the upper air duct cover plate and the lower air duct cover plate; central lines of holes of the taper-hole metal blocks and the through-hole metal blocks and central lines of the threaded holes are coaxial; the taper is formed at the upper end of each screw, and the screws are matched with the taper-hole metal blocks; the lower end of each screw is columnar, a thread is formed at the lower end of each screw, and each screw is matche