Eccentric screw pump used for mixing mortar mixtures comprises a casing arranged in a cylindrical housing, and a screw-like rotor

摘要

Eccentric screw pump comprises a casing (2) arranged in a cylindrical housing (1), and a screw-like rotor (6) with increasing direction like the stator (1, 2). The casing is made from a wear-resistant elastic material having an inner surface (3) with predetermined increasing direction and length. The outlet opening of the stator (1, 2) extends from the front end and in the axial conveying direction so that the front edge (24) of the rotor end (25) runs opposite the inner surface of the rotor. Preferred Features: The access pf the front edge of the rotor on the outlet side produced by radially and axially pulling back the front surface of the stator casing is at least 2 % or 3 % of the axial length of the stator increase.