Prediction of Shovel Productivity in the Gol-e-Gohar Iron Mine

Based on the modified Rosin — Rammler — Bennett expression and the image analysis, the relationship of the shovel productivity in the Gol-e-Gihar mine and the granulometric composition of rocks is obtained. It is shown that when percentage of crushed rock oversizes increases, the shovel productivity decreases. __________ Translated fron Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 97–104, March–April, 2005.     

齐大山矿岩石可移式破碎系统成功移位

齐大山矿岩石可移式破碎系统的成功移位,标志着我国在可移式破碎系统的使用方面上了一个新台阶,这势必促进可移式破碎系统在我国大型露天矿的使用及矿山企业的发展.     

Evaluating the Origin of Seepage Water in the Golgohar Iron Mine,Iran

The Golgohar mine produces iron ore from an open pit in south-central Iran that is now more than 100 m below the water table, and dewatering has not solved the mine’s water seepage problem. Previous studies had reported that Kheirabad (Sirjan) Playa, 13 km north of the mine, was the most probable groundwater source. A combination of geological, hydrogeological, hydrochemical, and isotopic techniques were used to evaluate the hydraulic connectivity between the mine and the lake, and to characterize the probable water sources. Thirty-two surface and groundwater samples were collected and analyzed for major and minor (Li, B, and Br) constituents. Ten water samples were analyzed for oxygen-18 and deuterium and three samples were analyzed for tritium. The results indicated that impermeable formations and very low-permeability alluvial deposits lie between lake and the pit. In addition, the chemical and isotopic signatures of the two water sources indicated different origins. Inverse geochemical modeling and the mine water’s isotopic signatures suggest that the water is coming from the surrounding alluvial aquifer, or is deep basin water from within the fractured bedrock, or a mixture of the two.     

陈台沟铁矿的矿井排水利用

以陈台沟铁矿的矿井排水为例,论述了矿井水在地下水源热泵方面的应用,具有节约能源和经济性双重意义。     

小官庄铁矿水文地质分析

介绍了小官庄铁矿二期工程向下延伸200 m后水文地质条件发生的变化,分析了现阶段水文地质条件特征,并提出了相应的预防措施。     

庙沟铁矿成本管理实践

分析了庙沟铁矿成本管理中存在的问题.从加强材料消耗管理、加强工资管理、控制不合理支出、进行成本指标分解、加强成本监督、强化流动资产管理等方面阐述庙沟铁矿成本管理实践,并提出了改进措施.     

庙沟铁矿提高入磨矿石品位实践

针对庙沟铁矿露天矿开采接近尾声、采场空间狭小、矿岩剥离工作受到限制、岩石混入量增加等问题,以"多碎少磨"的选矿理念,在矿石破碎阶段将混入的废石提前甩出,减少选磨矿环节压力,提高入磨原矿品位。     

齐大山铁矿石选矿技术研究综合评述

齐大山铁矿是我国特大型红铁矿铁矿山,在我国铁矿选矿技术研究中占有很重要的地位.介绍了齐大山铁矿石选矿技术基础研究情况和连续磨矿、弱磁选-强磁选-阴离子反浮选等4种工艺对比工业试验情况,分析了工业上应用的阶段磨矿、重选-磁选-阴离子反浮选等5种工艺流程选别齐大山铁矿石选矿工艺流程的特点,提出今后改进齐大山铁矿石选别指标的建议.     

庙沟铁矿选矿工艺流程的优化实践

在深入分析庙沟铁矿选矿流程存在问题的基础上,提出应用全自动淘洗磁选机及德瑞克细筛作为核心设备,对原有流程进行改造的具体方案,深入分析流程改造方案实施后的生产指标与经济效益.     

和尚桥铁矿循环经济论述

阐述了合理利用能源,降低能源消耗的措施;分析了主要污染源、污染物治理措施;提出了加强能源、环保管理,建立健全管理机构等建议.     

金岭铁矿召口分矿通风系统的改造

通过对召口分矿通风系统的技术改造,改变了南部通风系统的进风量小、主井反风的现状,对于频受民采破坏的矿井有一定的借鉴作用.     

庙沟铁矿选矿工艺设备优化

分析原选矿生产工艺流程存在问题,提出应用全自动淘洗磁选机、水力旋流器及德瑞克细筛作为核心设备对原有流程进行工艺改造,最终形成全自动淘洗磁选机精选的全磁选工艺,改造后效果显著.     

齐大山铁矿爆破技术的改进

简要论述了爆破技术的重要性和采用计算机技术改进爆破技术的方法和途径。     

杏山铁矿塌落区外矿体开采研究

杏山铁矿床属于鞍山式沉积变质贫铁矿。由于受F9断层破坏,矿床被分割为大杏山和小杏山两部分。根据生产勘探及倒段工程揭露情况,按照设计推荐的岩石错动角,小杏山端部矿体如果继续沿用崩落法开采,会导致地表塌落范围超出杏山现有购地界线。为回收这部分采矿证内的矿石资源,从安全环保、防止地表塌陷的角度考虑,对塌落区外矿体充填开采进行研究。     

弓长岭井下铁矿开采规划

根据弓长岭井下铁矿开采现状、开拓运输系统工程和编制矿山开采规划原则,对井下铁矿3个采区进行开采规划,从而实现从2007年的205万t逐年递增到2014年420万t的总体规模.     

马坑铁矿中矿段的生产勘探

马坑矿业已成为我国最大的单体井下磁铁矿。经过近几年马坑铁矿首采矿段的生产实践,通过详细的生产勘探,探采结合,利用开拓、采切、回采工程,对矿体进行了详细的二次圈定,进一步加深了对矿体的认识。为降本增效,介绍了马坑铁矿中矿段的生产勘探,包括勘探网度、影响因素、探采结合,合理优化等,进一步加强生产勘探工作,达到高效合理利用矿产资源的目的。     

瑞典基律纳铁矿考察报告

2010年7月,世界钢铁协会<改善钢铁原料利用项目>的委员们一行17人考察了瑞典的基律纳铁矿、选矿厂和球团厂.考察期间的一些采选技术对我们今后的设计工作有一定的指导意义.     

Environmental Isotope Investigation of Groundwater in the Sarcheshmeh Copper Mine Area,Iran

Precipitation, surface, and groundwater samples were collected during 2009–2010 in the Sarcheshmeh copper mine drainage basin, Kerman Province, Iran. Groundwater samples were collected from both shallow and deep aquifers. All of the samples were analyzed for stable isotopes, deuterium (²H), and oxygen-18 (¹⁸O), and some were analyzed for tritium (³H). The results show a more restricted range of isotopic composition in groundwater samples than in precipitation samples based on the isotopic composition of the precipitation. The isotopic composition of surface and groundwater samples plot to the right of the local meteoric water line of the Sarcheshmeh area and around the evaporation line, indicating that the groundwater within the study area originates from meteoric water that has undergone secondary evaporation before or during recharge. Tritium was below the detection limit in the deep groundwater samples while shallow groundwater samples had tritium concentrations between 1.2 and 1.7 TU, which indicates a longer residence time for deep groundwater.     

桃冲铁矿低贫化放矿工艺的应用

为解决无底柱崩落采矿法低贫化放矿工艺实施存在的问题，开展了低贫化放矿工艺的应用途径的分析与试验，提出了对矿山正常生产影响最小的全矿整体过渡的实施方式，应用较为成功。     

逐孔起爆技术在庙沟铁矿的应用

通过成功应用逐孔起爆技术,提高了爆破质量,降低了爆破费用,减少了爆破地震波带来的危害.