Experimental feasibility study of gangue-filled no-wash pipe
After filling,pipe washing is required,in order to reduce the water consumption of pipe washing and avoid the impact of pipe washing water on the quarry,this paper adopts the gangue slurry as a new type of pipe washing material,which is transported to the filling pipe,replaces the filling slurry in the pipe and is pre-stored in the pipe,so that the next time the filling slurry pushes out the gangue slurry to achieve the purpose of free pipe washing.Through the detection of various nature parameters of the gangue,and pre-sample test,determined the use of 80%mass concentration,the initial collapse degree of 260mm gangue slurry for semi-industrial ring pipe test,in order to further demonstrate its feasibility.Ring pipe test proved that:due to the evaporation of water,pipe conveying resistance and gangue slurry in the pipe retention time is proportional to the gangue slurry after 48 hours of retention of the gangue slurry of the collapsed degree of reduction to 250mm,still has a good mobility and pumping performance,can achieve the purpose of filling water-free pipe washing.
coal ganguepipe filling and washingring pipe testpipeline transportation
万方数据
维普
