Limestone raw material screening and feeding device

The utility model relates to the technical field of raw material screening devices, in particular to a limestone raw material screening and feeding device which comprises a frame body, the frame body comprises a fixing frame, the surface of the fixing frame is connected with a discharging column, and the discharging column is arranged on the inner side of a belt conveying device in an inserted mode. Through cooperation of the first motor, the first crushing column, the crushing box, the second crushing column, the fixed column, the sieve plate, a buffer spring, a transportation column, a second motor and a spiral column, it is guaranteed that the device can repeatedly crush raw materials which do not reach the screening size, then the crushing effect of the device is effectively guaranteed, and then the using effect of the device is effectively guaranteed. 本实用新型涉及原料筛分装置技术领域，具体为一种石灰石原料筛分及上料装置，架体，所述架体包括固定架，所述固定架的表面连接有下料柱，所述下料柱插设在皮带运输装置的内侧。本实用新型通过第一电机、第一粉碎柱、粉碎箱、第二粉碎柱、固定柱、筛板、缓冲弹簧、运输柱、第二电机和螺旋柱的配合，保障装置可以对没有达到筛分大小的原