Shield constructs device of spiral mouth control mud

The utility model discloses a shield constructs device of spiral mouth control mud, it includes the master shield, and the master shield setting corresponds a position for unearthed mouthful at screw machine, and the both sides at the conveyer belt are fixed to the master shield, it still includes preceding baffle, prevent board, the board of preventing splashing, anti -overflow play board, backplate against the current, and preceding baffle, backplate setting prevent in the screw machine mouthful department of being unearthed that the board is fixed on the backplate against the current, and the board of preventing splashing passes through the stand to be fixed on the master shield, and the anti -overflow goes out the board setting between master shield and conveyer belt. The utility model provides a shield constructs device of spiral mouth control mud, its simple structure, the effective control diffusion of mud, provide good operational environment for the shield constructs the construction, effectively avo