Acoustical enclosure wall

An acoustic shield wall body is applied to sound damping of strong noise devices, which is composed of an acoustical insulation layer, an acoustical absorption layer and a surface protective layer which are sequentially disposed. The acoustic shield wall body is characterized in that the acoustical absorption layer is composed of a centrifugal glass wool layer with medium-high density and a centrifugal glass wool layer with low density, the centrifugal glass wool layer with medium-high density is attached to the acoustical insulation layer, the centrifugal glass wool layer with low density is attached to the surface protective layer and arranged close to acoustic sources. The acoustic shield wall body has good acoustical absorption effect, in particular has high acoustical absorption coefficient to low-frequency noise. The acoustic shield wall body has good acoustical absorption effect, high acoustical absorption coefficient, light weight and beautiful appearance.