In the mining process, the blind mining of the mine is likely to cause soil stripping, formation of rock fragments and low-grade ore deposits, formation of empty mining areas and subsidence areas, formation of tailings, and exploitation due to mining. Land and so on. If it is to be restored, the task of stabilizing the slope is to clear the dangerous stone, downhill and slope, and to form the horizontal step as far as possible. For the treatment of tailings, increase the utilization rate of tailings, and the tailings that are sold to realize the scale operation and the commodification of multi-variety development to turn waste into treasure, and truly become a part of economic commodities.
In order to comprehensively rectify and standardize the development of mineral resources, the museum will shut down and rectify mines that do not meet the development conditions, develop tourism projects for the mines after closure, and construct diversified thematic landscapes, such as botanical gardens, recreational parks, and open-air museums. In order to comprehensively rectify and standardize the order of mineral resources development, the mines that do not meet the development conditions will be shut down and rectified, and the mines after the shutdown will be developed for tourism projects, such as botanical gardens, recreational parks, and open air. Museums, etc.
The reclaimed land reclamation will rehabilitate the developed mines, requiring the restoration of farmland and forests, requiring the control of water erosion and toxic deposits; ensuring that the surface remains unchanged and the groundwater level remains at the original level; keeping the topsoil still in place; Prevention and treatment of acidic substances; prevention of landslides such as deposits.
The diversion of lakes will rehabilitate the developed mines, requiring the restoration of farmland and forests, requiring the control of water erosion and toxic deposits; ensuring that the surface remains unchanged and the groundwater level remains at the original level; keeping the topsoil in place; Prevention and treatment of acidic substances; prevention of landslides such as deposits.
Gate valve is usually used for shutting off or connecting the medium flow but not recommended for throttling action.
Nominal pressure of brass gate valves 1.6MPa and medium temperature for metal seal is -20℃~150℃. When the Gate Valve is used for saturated steam, the pressure of the saturated steam should be≤0.6MPa.
Gate Valve
Gate Valve,Brass Gate Valve,Brass Lockable Gate Valve,Forged Brass Gate Valve
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