Sectional screen module conveyor

The invention discloses a segmented screen module conveyor which is characterized in that a plurality of screen modules are detachably connected and distributed on a working path of a layered conveying module by arranging the screen modules and the layered conveying module, and a forward conveying unit on the upper layer of the layered conveying module conveys the screen modules bearing workpieces to a workpiece processing area; the reverse conveying unit on the lower layer conveys the screen modules back to the starting point of the forward conveying unit so that recycling of the screen modules can be achieved, when a certain screen module is seriously abraded or deformed or fractured, modular disassembly and replacement can be conducted, and after one or more screen modules are disassembled, the screen modules can be recycled. And the remaining screen modules can continue to conduct conveying work on the layered conveying module, the operation that the screen modules can be replaced without shutdown is achi