Based on characteristics of deep sea flexible mining system,a new pump-lockage ore transportation system was designed.According to Bernoulli equation and two-phase hydrodynamics theory,parameters of the new system wer...Based on characteristics of deep sea flexible mining system,a new pump-lockage ore transportation system was designed.According to Bernoulli equation and two-phase hydrodynamics theory,parameters of the new system were obtained and four ore transportation systems were analyzed.The results indicate that the pump head of 1 000 m mining system is 100-150 m and that of 5 000 m mining system is 660-750 m.In addition,based on similarity theory,a model of the new transportation system was made,which can simulate more than 5 000 m actual ore transportation system.So both theory and experiment prove that the new pump-lockage ore transportation system is an ideal design for deep sea flexible mining system.展开更多
I came to the Three Gorges valley to find and study boat tracking stones.I found out that ,apart from the stones worn with deep towlines grooves that attract most of the attention,there were many other stones in the a...I came to the Three Gorges valley to find and study boat tracking stones.I found out that ,apart from the stones worn with deep towlines grooves that attract most of the attention,there were many other stones in the area where traces of the hard lives of boat trackers had been left behind.展开更多
基金Project(50574100)supported by the National Natural Science Foundation of China
文摘Based on characteristics of deep sea flexible mining system,a new pump-lockage ore transportation system was designed.According to Bernoulli equation and two-phase hydrodynamics theory,parameters of the new system were obtained and four ore transportation systems were analyzed.The results indicate that the pump head of 1 000 m mining system is 100-150 m and that of 5 000 m mining system is 660-750 m.In addition,based on similarity theory,a model of the new transportation system was made,which can simulate more than 5 000 m actual ore transportation system.So both theory and experiment prove that the new pump-lockage ore transportation system is an ideal design for deep sea flexible mining system.
文摘I came to the Three Gorges valley to find and study boat tracking stones.I found out that ,apart from the stones worn with deep towlines grooves that attract most of the attention,there were many other stones in the area where traces of the hard lives of boat trackers had been left behind.
