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在溜井的下部结构设计中,为了减少溜井在输送矿石过程中,矿流对矿仓壁(尤其是额墙一面)、放矿溜槽的槽底、槽帮磨损和破坏,通常使用优质钢板(40Mn、50Mn)、锰钢板(40Mn2、50Mn2)、高锰钢板(ZGMn13)等材料做为保护层,对混凝土结构与矿流接触的表面进行覆盖,从而确保混凝土结构的强度和使用寿命。在矿仓内、溜槽中,由于施工工作条件和钢板的自重等条件的限制,要达到其表面保护层成为一个整体是十分困难的,特别是把锰钢板制做成400mm×500mm、500mm×600mm的小块时,锰钢板的焊接性能较差,最终使用四个锚栓或螺栓,在混凝土表面进行镶嵌。 根据对酒钢矿溜井的下部结构及该部位的使用情况观察。由于采用这样的方法、锰钢板保护层
In the structure design of the lower part of the chute, in order to reduce the process of transporting the ore in the chute, the ore flow often damages the wall of the ore bin (especially the front wall), the groove bottom and the groove of the ore chute, , 50Mn), manganese steel (40Mn2,50Mn2), high manganese steel (ZGMn13) and other materials as a protective layer, covering the surface of the concrete structure in contact with the ore flow to ensure the strength and service life of the concrete structure. In the ore warehouse, the chute, due to the construction conditions and the weight of the steel and other conditions, to achieve its surface protection as a whole is very difficult, especially the manganese steel plate made into 400mm × 500mm, 500mm × 600mm Of the small pieces, the poor performance of manganese steel welding, the final use of four anchor bolts or bolts, inlaid in the concrete surface. Based on the lower part of the Jiuquan Iron Mine Chute and the use of the site observation. As a result of this method, manganese steel protective layer