Stranding cage type grading screen

The invention provides a stranding cage type grading screen applied to the technical field of metallurgical beneficiation screening devices. An outer screen mesh (7) of the stranding cage type gradingscreen is arranged outside a grading screen barrel (2). An inner screen mesh (6) is arranged in the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LI MINGJUN, WANG GUANGQUAN, ZHAO ZHENMING, CUI LIANG, WENG JINHONG, XUE SHIRUN, ZHANG WEI, QIAN SHIHU
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a stranding cage type grading screen applied to the technical field of metallurgical beneficiation screening devices. An outer screen mesh (7) of the stranding cage type gradingscreen is arranged outside a grading screen barrel (2). An inner screen mesh (6) is arranged in the outer screen mesh (7). The outer screen mesh (7) is of the structure that the mesh diameter of meshes is smaller than that of the inner screen mesh (6). A plurality of multi-head spiral blades (9) are mounted between the outer screen mesh (7) and the inner screen mesh (6). Each multi-head spiral blade (9) is of a spiral structure which extends from the direction of a feeding end port (3) to a coarse material discharging end port (5). The feeding end of the grading screen barrel (2) is connectedwith a motor (8). The motor (8) is connected with a control part. According to the stranding cage type grading screen, materials entering the grading screen can be dispersed and graded conveniently and rapidly, the loose degr