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亞鉀國際(000893.SZ):目前鉀肥生產產生的尾礦80%以上已直接進行井下回填
格隆匯 06-01 15:05

格隆匯6月1日丨有投資者在互動平台向亞鉀國際(000893.SZ)提問,“請問你們在老撾的礦區為何尾礦不進行填埋,露天堆積如山的尾礦是後期有其他用途嗎?”

公司回覆稱,1、目前鉀肥生產產生的尾礦80%以上已直接進行井下回填,地表露天是暫時堆放的少量尾礦及廢鹽,待井下采空區具備條件後進行回運充填。公司老撾鉀礦採用房柱式開採方式,井下每一採掘面在採空後都會逐一進行充填。2、礦井建設產生的廢鹽,將通過以下幾種處理方式解決:(1)通過隔水壓實處理後用於廠區及工業園的新建道路路基材料,以代替路基中成本較高的沙石骨料;(2)研發製作粘土鹽磚並進行防水處理後,用於地表和井下工程;(3)井下石巖層工業鹽開發後,會增加採空區,也需要尾鹽回填,這些餘積的尾鹽可以充當工業鹽採空區回填用料。

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