Hierarchical screening plant of pitch reworked material and screening system

The utility model provides a hierarchical screening plant of pitch reworked material and screening system, includes that at least three -layer accepts the vibrating screen body of setting from top tobottom in proper order, and vibrating screen body all slopes to set up, and vibrating screen body is reduced by the screen cloth meshi aperture of upper strata to lower floor in proper order, and bottom vibrating screen body below and each layer vibrating screen body end all corresponds and is connected with discharging device, is provided with at least one vibration excitation device who is usedfor driving the vibrating screen body vibration on every layer of vibrating screen body respectively. The utility model discloses a screening plant is provided with the thin of multiple different specifications, the coarse fodder export, can realize the hierarchical screening of material, realize customer demands's different specification material separation, especially, has better screening effect to difficult screening m