The application discloses a large air dust removal device for subway
tunnel construction and belongs to the technical field of
tunnel safety devices, in particular relates to a
dust fall and removal device during subway
tunnel construction. The device comprises a base and a
water curtain mechanism, further comprises a rotary lifting mechanism, the
water curtain mechanism is rotatably arranged on the base through the rotary lifting mechanism, a
water curtain recovery mechanism, a
sewage filtering mechanism and a
sewage purification mechanism are arranged on the base, the water curtain
recovery mechanism recovers the water curtain, is used for filtering of the
sewage filtering mechanism and purification of the sewage purification mechanism, and the
purified water reenters the water curtain mechanism. The device forms a water curtain by directly spraying water, improves the dust capture efficiency in the air, is provided with a
recovery device, can recover part of the sprayed water for secondary use, reduces the waste of
water source, and can also control and reduce the tunnel
haze concentration.