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张马屯铁矿位于济南市东郊，地表无处建尾矿库。为了解决这一难题，作者通过一系列试验提出了全尾砂胶结充填方案，即利用矿山选厂全尾砂作充填骨料，利用活化搅拌、泵送和自流输送等工艺，将高浓度全尾砂胶结充填料浆送入采空区，形成稳定均质结构的充填体。实践证明，该方案的实施使矿山实现采矿、选矿和充填综合平衡闭路循环作业和“无废”生产，成为中国第一座不外排尾矿的矿山
Zhang Ma Tun iron is located in the eastern outskirts of Jinan City, the surface has no place to build tailings. In order to solve this problem, the authors put forward a tailings-cementing and filling scheme through a series of experiments, that is, using the tailing sand of the mine dressing plant as the filling aggregate, utilizing the processes of activation stirring, pumping and gravity conveying, Sand cement filling slurry into the goaf, forming a stable homogeneous structure of the filling body. Practice has proved that the implementation of the program enables the mine to achieve a comprehensive balance of closed-loop operations and “non-waste” production of mining, beneficiation and filling, becoming the first mine in China to be discharged without tailings