矿山尾矿和煤矸石是资源 重新开发前景广阔

我国8 843个县级以上国有矿山中，2/3已进入老年期，资源形势严峻。现有2 000多座矿山尾矿库储有50×108t尾矿，1900座煤矸石山储有38×108t煤矸石，应用近年开发成功的矿山固体废料综合利用技术，可以将之变为新的矿物资源，可开发成为矿山、矿业城市经济转型的资源基础和接续产业。通过示范矿山的地质评价和试验研究，提出把矿山固体废物作为建材原料和硅材料原料开发；把煤矸石作为非金属矿产的接续资源；对尾矿进行开发利用。

Tailing and Gangue:The Prosperity Resources Be Recycled

There are 8843 state-owned mines of county level and above in China, 2/3 of which has become aged . There are more than 2000 tailing ponds and 1900 coal gangue hills, which reserve 5000 million tons of tailings and 3800 million tons of gangues respectively. They can become new composite mineral materials with the help of the latest technology. Through geological evaluation and experiment study on 4 model mines the authors provide advices as follows: developing mine wastes as building materials and Si-materials; developing gangues as nonmetal materials; geologically evaluating tailings and developing them rationally.