(EN) The invention discloses a method and equipment for backfilling ground gangues into an underground mined-out region. The method includes crushing the gangues on the ground by a ground roll crusher in a gangue backfilling procedure; conveying crushed gangues into an underground environment by a vertical material dispensing machine; crushing fragments of the gangues again by an underground roll crusher in the underground environment so that the requirement of a pneumatic conveyor on the grain size is met; and conveying secondarily crushed fragments by the pneumatic conveyor to the underground mined-out region to backfill the secondarily crushed fragments into the underground mined-out region. The equipment and method for backfilling the ground gangues into the underground mined-out region have the advantages that the gangues can be sequentially conveyed from the ground to the underground mined-out region with the depth of several hundred meters safely, efficiently and economically so as to be backfilled into the underground mined-out region, the area occupied by accumulated ground gangues is saved, and the risk of surface subsidence is reduced.
(ZH)
本发明公开了一种井上矸石回填井下采空区的方法及设备，本发明在矸石回填过程中，先将矸石在井上地面通过井上对辊式破碎机进行破碎，然后将破碎后的矸石通过垂直式物料投放机输送至井下，在井下通过井下对辊式破碎机对矸石碎块进行再次破碎，以达到适应气力输送装置需要的粒径大小，最后再通过气力输送装置输送至井下采空区进行回填。本发明的井上矸石回填井下采空巷道的设备及方法可以安全、高效并经济的将矸石依次通过从地面输送到距离地面几百米深的井下采空区进行回填，节约了地面矸石堆积占地面积，降低了地表塌陷危险。
