The ZQJ/S Mud Cleaner, also called Desander and Desilter assembly, integrates desander, desilter and chock manifold mounted over a shale shaker to operate as a single unit. Mud Cleaner is the second class and the third class solids control equipment for separation of solid particles above 0.02 mm, with a maximum treatment capacity is 56 L/s; The treated drilling fluid can be directly used or further separated by medium and high-speed centrifuges.