Despite lots of techniques in improving the heap leaching performance,many constraints on the industrial applications remain.We proposed a correspondingly effective and new idea of introducing forced aeration to impro...Despite lots of techniques in improving the heap leaching performance,many constraints on the industrial applications remain.We proposed a correspondingly effective and new idea of introducing forced aeration to improve the bad permeability and leaching effect of Yangla Copper Mine(YCM)during heap leaching.The dual-media theory was employed to study the impact mechanism of forced aeration on the variations of porous and fractured media during the column leaching experiments.An X-Ray Computed Tomography(CT)set was utilized to perform the pore imaging of the specimens and the fracture morphology of the particles within the columns was analyzed by Scanning Electron Microscope(SEM)as aeration rate(AR)changed.The results show that there exists copious fine particles within the heap of YCM,the particle size distribution of which is not reasonable.The forced aeration can not only promote the development of the porous and fractured structures but effectively break the blocked seepage paths.Then the leaching degree is improved and the seepage performance of the solute within the solution is enhanced.Therefore,the forced aeration is probable of making the leaching performance greatly improved.展开更多
提出一种基于实时数字仿真仪(real time digital simulator,RTDS)的配电网一二次设备融合仿真技术。阐述配电网一二次设备融合仿真系统的基本要求和总体框架,并给出仿真系统的总体设计方法。从一二次设备数据获取、接口、转换以及算法...提出一种基于实时数字仿真仪(real time digital simulator,RTDS)的配电网一二次设备融合仿真技术。阐述配电网一二次设备融合仿真系统的基本要求和总体框架,并给出仿真系统的总体设计方法。从一二次设备数据获取、接口、转换以及算法选取等方面,提出仿真系统的具体实现方法。以采用所提的仿真系统对配电网继电保护算例进行仿真,整个仿真系统的响应时间在2~3个仿真步长,验证了所提一二次设备融合仿真技术的可行性和有效性。展开更多
基金the National Natural Science Foundation of China(No.51374035)the Foundation for the Author of National Excellent Doctoral Dissertation of PR China(No.201351)the Program for New Century Excellent Talents in University of China(No.NCET-13-0669).
文摘Despite lots of techniques in improving the heap leaching performance,many constraints on the industrial applications remain.We proposed a correspondingly effective and new idea of introducing forced aeration to improve the bad permeability and leaching effect of Yangla Copper Mine(YCM)during heap leaching.The dual-media theory was employed to study the impact mechanism of forced aeration on the variations of porous and fractured media during the column leaching experiments.An X-Ray Computed Tomography(CT)set was utilized to perform the pore imaging of the specimens and the fracture morphology of the particles within the columns was analyzed by Scanning Electron Microscope(SEM)as aeration rate(AR)changed.The results show that there exists copious fine particles within the heap of YCM,the particle size distribution of which is not reasonable.The forced aeration can not only promote the development of the porous and fractured structures but effectively break the blocked seepage paths.Then the leaching degree is improved and the seepage performance of the solute within the solution is enhanced.Therefore,the forced aeration is probable of making the leaching performance greatly improved.
文摘提出一种基于实时数字仿真仪(real time digital simulator,RTDS)的配电网一二次设备融合仿真技术。阐述配电网一二次设备融合仿真系统的基本要求和总体框架,并给出仿真系统的总体设计方法。从一二次设备数据获取、接口、转换以及算法选取等方面,提出仿真系统的具体实现方法。以采用所提的仿真系统对配电网继电保护算例进行仿真,整个仿真系统的响应时间在2~3个仿真步长,验证了所提一二次设备融合仿真技术的可行性和有效性。
