Aggregate multi-stage screening device

• Main Authors: HU YAFAN, LIU YONGHONG, XU XIN, WANG WENYUN, DENG YUAN, XIA KAIKAI
• Format: Patent
• Language: Chinese; English
• Published: 01.10.2021
• Subjects: OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL; PERFORMING OPERATIONS; SEPARATING SOLIDS FROM SOLIDS; SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS; SORTING; TRANSPORTING

The invention provides an aggregate multi-stage screening device, and relates to the technical field of aggregate gradation. The aggregate multi-stage screening device comprises a rack and a driving mechanism; a plurality of stages of screening plates for screening aggregates are sequentially arranged along the rack from top to bottom, and the pore diameters of the screening plates are gradually reduced from top to bottom; the screening plate is arranged in a downward inclined mode in the direction close to a discharging groove. A hopper is mounted above the screening plate; discharging grooves corresponding to the screening plates in a one-to-one mode are sequentially formed in the rack from top to bottom. The discharging groove is formed in one side of the screening plate. A discharging opening is formed in the discharging groove, and the discharging groove inclines downwards in the direction close to the discharging opening; the driving mechanism is used for driving the screening plate to transversely reci