Simulation Study On A New Submersible Sludge Pump In Mines

With the mine growth, it is important for people to pay more attention aboutenvironmental protection and energy-saving. More people have put forward thedevelopmental goal of Green Mine and higher requirements of environmental protection.The new submersible sludge pump that is one of slurry pump is introduced. It is usedwell at the conditions of sediment dredging, slurry transportation, tailings disposal.Used to solve the water pollution of mine, the pump is good to protect the environment.In some severe cases, it reduces staff accident risk, saves the cost and brings hugeeconomic benefit, what has been widely used in the domestic mining enterprises.The research methods of science and advanced theory are used in the study. Wecollect a lot of operating data and study the key part of submersible sludge pump:mechanical seal and flow field. At first, the new mechanical seals applied insubmersible sludge pump are introduced; secondly, the flow field of sludge pump hasbeen analyzed by using the CFD software. The3D entity models of the slurry pumpbuilt by using the Pro/E are imported to the FLUENT. By using the FLUENT，we canstudy the internal and external features of the flow field. The main conclusions of theresearch are listed as follows:(1) The character of the mechanical seal and the circulatory system of “micropump” is summarized;(2) By simulating the flow field of sludge pump and making an Analysis of the lawof flow inside the impeller and volute, the study has been pumping the velocitydistribution, the turbulence intensity distribution and the pressure distribution. Theperformance is verified with the condition, in line with the requirement of the pump.The hydraulic technology and economy compared with the same type of interiorpump, has a certain gap. Facing with more problems and challenges, we needto learn and digestion advanced foreign technology. To carry out scientific andtechnological innovation, it will have the important significance for the innovation anddevelopment of pump industry in china.