Drilling fluid mud sieving and drying treatment method and drilling fluid mud sieving device

The invention relates to a mud drying treatment method and a sieving device used for mud drying treatment, which belong to the technical fields of petroleum drilling fluid solid-liquid separation and drilling cuttings drying treatment. The mud drying treatment method comprises the steps of distributing drilling fluid mud through a fluid distribution tank of a feed box, adsorbing through a vacuum box, sweeping through an air knife, and carrying out drying treatment. The separated drilling cuttings moisture content can be effectively reduced, meanwhile, harmful gas and organic volatile impurities in drilling cuttings are effectively removed, and the drilling cuttings can be conveniently collected, stored and transported. In addition, through adjusting an air outlet angle and an air volume of the air knife, different species of materials at different places on a screen can be reversely blown, so that a drying effect of mud is improved, and the method and the device have positive meaning on reducing drilling cutt