Built-in flow-state solidified soil preparation equipment of shield tunneling machine

The utility model provides a built-in flow state solidified soil preparation device of a shield tunneling machine, which is characterized in that the built-in flow state solidified soil preparation device is provided with a screening bin, a mixing bin and a storage bin, the screening bin is provided with a feeding port, a screening mechanism and a conveying mechanism, the mixing bin is provided with a screening feeding port, a feeding port, a water conveying guide pipe and a stirring shaft, the screening mechanism is provided with a plurality of screening zones, and the screening zones are connected with the conveying mechanism. The screening mechanism is provided with a plurality of screening areas, the screening areas are distributed from top to bottom, filtering holes of the screening areas become smaller and smaller from top to bottom, the conveying mechanism is arranged below the screening mechanism, and each screening area is correspondingly provided with a sundry discharging opening; the outlet end of