Device for transferring a solid material with endless screw and removable anti-rotation device

A transfer device suitable for transferring a solid material in powder, particulate or granular form, the transfer device comprising:

• a transfer tube extending along a transfer axis and comprising two opposite ends respectively delimiting an inlet allowing the solid material to enter the transfer tube and an outlet allowing the solid material to exit from the transfer tube;
• at least one endless screw with at least one thread disposed inside the transfer tube, rotatably mounted with respect to the transfer tube along a rotational axis coinciding with, or parallel to, the transfer axis and configured to ensure, when said at least one endless screw is driven in a rotational movement about the rotational axis, a displacement of the solid material relative to the transfer tube oriented from the inlet to the outlet of the transfer tube;
• at least one motion actuator ensuring a rotational movement of said at least one endless screw relative to the transfer tube;
• at least one anti-rotation member removably positioned in the transfer tube at an intermediate location radially positioned between an internal face of the transfer tube and the top of said thread of said at least at least one endless screw, said at least one anti-rotation member comprising an internal surface facing said at least one endless screw, the internal surface being provided with blocking asperities configured to oppose a rotational movement of the solid material relative to the transfer tube about the rotational axis and thereby convert, for the solid material present in the transfer tube, the rotational movement of the endless screw into said displacement of the solid material from the inlet to the outlet of the transfer tube wherein said displacement essentially comprises an axial component along the transfer axis;
• a fastening system configured to provide a reversible embedding connection between the at least one anti-rotation member and the transfer tube.