The invention provides a compensator for a
slurry balance shield mud circulation
system. The compensator comprises an inner rubber layer, a first body enhancement layer, a second body enhancement layer, a skeleton layer, a
third body enhancement layer, a fourth body enhancement layer,
flange pieces and connector enhancement
layers, wherein the first body enhancement layer, the second body enhancement layer, the skeleton layer, the
third body enhancement layer, the fourth body enhancement layer are sequentially arranged from the outer
circular face of the inner rubber layer outwards, and the
flange pieces and the connector enhancement
layers are arranged at the two ends of the inner rubber layer. The connector is sequentially provided with the first
flange piece, the first connector enhancement layer, the second flange piece, the second connector enhancement layer, the third flange piece, the third connector enhancement layer, the fourth flange piece and the fourth connector enhancement layer in the axial direction, wherein the first connector enhancement layer and the first body enhancement layer are integrally arranged, the second connector enhancement layer and the second body enhancement layer are integrally arranged, the third connector enhancement layer and the
third body enhancement layer are integrally arranged, and the fourth connector enhancement layer and the fourth body enhancement layer are integrally arranged. The first connector enhancement layer and the second connector enhancement layer are integrally arranged on the outer circle side of the flange pieces, and the third connector enhancement layer and the fourth connector enhancement layer are integrally arranged on the outer circle side of the flange pieces. The compensator is high in strength.