Device for producing lignite slime with high ash content and low calorific value

The utility model discloses a high ash content and low calorific value lignite coal slime production device, a raw coal bin is communicated with a raw coal screening unit through a material pipe, the middle position of the lower end of the raw coal screening unit is connected with a first desliming screen through a material pipe, and the upper end of the left side of the first desliming screen is connected with a shallow slot sorting machine through a material pipe; the right side of the raw coal screening unit is connected with a flip-flow screen through a material pipe, the right side of the upper end of the flip-flow screen is connected with a second desliming screen through a material pipe, and the upper end of the right side of the second desliming screen communicates with a coarse slime recycling unit through a material pipe; the mud water pipe is communicated with the ultrahigh-pressure water squeezing filter press through a coal mud water treatment unit, and the lower end of the ultrahigh-pressure wat