CFHS reversible arc screen is mainly composed of arc stainless steel screen surface and screen frame and support. There is a central rotating axis in the middle of the screen frame. The screen frame can be rotated 180 degrees by the central rotating axis. The screen does not need to be removed to change the direction, so as to extend the service life of the screen surface. Coal slurry along the arc screen surface movement, each across a screen, because of the liquid flow and screen side sharp Angle impact, in the screen Angle so that the particle surface water tension is damaged, so a part of the water and fine particles are cut down to become under the screen.