| 摘要 |
FIELD: separating solids from solids. ^ SUBSTANCE: screening device comprises main frame, auxiliary frame mounted on the main frame, screen concave mounted on the auxiliary frame for permitting adjusting common angle of screening and having charging end for receiving loose material and opposite discharging end for discharging remainder unscreened material, section for the secondary screening provided with the receiving end adjacent to the discharging end of the section for the primary screening and mounted for permitting secondary screening and discharging the remainder unscreened material through the opposite discharging end, and control means for control of the angle of screening one of the section with respect to the other section of the screen concave. The auxiliary frame is mounted on the main frame for permitting adjustment of the common angle of screening of the screen concave that is controlled by adjusting auxiliary frame with respect to the main frame. The adjustment of the auxiliary frame is limited by the screening angle of the section for secondary screening. The screening angle of one of the screening sections can be adjusted with respect to the other screening section as well as with respect to the common screening angle of the screen concave. ^ EFFECT: improved quality of separating. ^ 9 cl, 2 dwg |
