Filter cartridge for screw press

The utility model belongs to the technical field of screw presses, and particularly discloses a filter drum for a screw press, which comprises a plurality of groups of assembly parts, each assembly part comprises an arc-shaped filter plate and a framework fixed on the outer side of the filter plate, the plurality of filter plates are encircled to form a drum shape, and a welding seam is arranged between every two adjacent filter plates; the frameworks are connected end to end, connecting plates are fixed to the connected ends of the adjacent frameworks, the connecting plates of the adjacent frameworks are fixed, and a welding seam is located over the connecting position of the two connecting plates. By adopting the scheme of the utility model, the problem that the distance between the spiral blade and the inner wall of the filter cartridge is influenced because the filter cartridge is easy to deform under the action of external force such as extrusion in the use process can be solved. 本实用新型属于螺旋压榨机技术领域，具体公开了一种