Beneficiation plant tailings stockpiling way, it is wet and dry stockpiling stockpiling two kinds.
The tailings after dry beneficiation or the dewatered coarse tailings can be transported to the tailings yard by belt conveyor or other transportation equipment. This method is called dry storage. For example, the tailings of the Shimian Mine in Sichuan Province are transported by car to the tailings and stored along the hillside.
The tailings slurry of the wet beneficiation is generally transported by hydraulics to the tailings field, and then the hydrostatic alluvial method is used to build the dam. This method is called wet storage. At present, most of the tailings in China's concentrators use this method of storage.
The tailings field (or tailings pond), which is a tailings accumulation site, generally consists of the following facilities, as shown in Figures 1 and 2.
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The initial dam is the foundation dam of the tailings field, which has the function of supporting the late accumulation body and the function of draining the accumulation dam.
Late accumulation dams are generally built up in the production process using tailings itself. It is a support for blocking fine tailings and tailings water.
The flood discharge facility is a structure for clarifying water and flood in the tailings mine, and is generally composed of an overflow structure and a drainage structure.
The drainage facility is a structure that accumulates and drains the seepage water in the tailings accumulation dam, and acts to reduce the immersion line of the accumulation dam.
The return water facility is a structure for recovering clarified water in the tailings field.
The observation facility is a facility that monitors the operation of the tailings mine during the production process.
Other facilities include dam slopes and abutment drains for draining slopes and surface waters of tailings; communication lighting facilities; management facilities (such as duty rooms, tool rooms, equipment rooms, etc.); transportation facilities; damming Machine tools, etc. Some large tailings also have simple maintenance facilities. The tailings mine far from the concentrator should also have living welfare facilities when necessary.
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