Convenient-to-replace screen for pulverizing bin of pulverizer

The screen mesh assembly comprises a mounting frame, an insertion cavity is formed in one side of the mounting frame, a movable opening is formed in the bottom of an inner cavity of the insertion cavity, a rotating shaft rod is rotationally installed in an inner cavity of the movable opening, and a rotating shaft is arranged in the rotating shaft rod. Three first clamping blocks are fixedly mounted on the surface of the rotating shaft rod, a connecting plate is fixedly connected to the bottoms of the three first clamping blocks, three springs are fixedly connected to the bottom of the connecting plate, a fixing frame is fixedly connected to the bottom of the mounting frame, the bottom ends of the three springs are fixedly connected to the inner side of the fixing frame, and a screen is inserted into inner cavities of two insertion cavities. According to the convenient-to-replace screen for the pulverizing bin of the pulverizer, a user pulls the shifting piece to drive the rotating shaft rod to rotate, then on