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甘肃冶金

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本刊主要刊登甘肃及兄弟省（区）冶金、有色金属工艺、生产与研究的进展和动态，推动甘肃冶金、有色金属工业的发展。是科研、企业单位技术、管理人员学术交流的载体和平台。
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甘肃冶金 >2023年第5期

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  • 摘要：通过对和龙地区区域地质背景的研究分析，以5个典型多金属矿床的调查研究为突破口，对矿床（点）的空间、时间分布规律进行了总结，认为该区矿床（点）分布具有种类众多范围广、成群成带分布、成矿时代广、持续时间长的特征，矿床（点）分布与地层、构造和岩浆岩等地质因素关系密切，形成时代可划分为新太古代、晋宁期、华力西晚期和燕山早期4个阶段。以成矿作用、成矿时代、赋矿围岩、矿体空间形态为基础，划分出新太古代绿岩带型热液金矿床、新太古代绿岩带沉积变质铁矿床、晋宁期热液型银矿床、华力西晚期热液型钼矿床、燕山早期构造破碎蚀变和石英脉型热液金矿床、燕山早期斑岩型钼矿床6种类型。最后提出了该区找矿目标、主攻矿种，以及勘查技术部署等关键技术。%Through the study of regional geological background, with five typical polymetallic deposit as the breakthrough point, the space and time distribution regularity of ore deposits ( points) are summarized, that the distribution of ore depos⁃its ( points) has a wide variety, wide bands zonal distribution and metallogenic epoch characteristics of long duration, dis⁃tribution of ore deposits ( or points) and closely related to geological factors such as strata, structure and magmatic rocks, the formation can be divided into four stages of new archaean era, jinning period, late variscan and early yanshan. Based on the metallogeny and metallogenic epoch, ore rock and ore body space form, the deposits can be divided into six types of new archean greenstone belt typed hydrothermal gold deposit, the new archean greenstone belt typed sedimentary metamor⁃phic iron deposit, Jinning hydrothermal period silver deposit, the late variscan hydrothermal typed molybdenum deposit, the early Yanshan tectonic fractured altered and quartz vein typed hydrothermal gold deposit, the early yanshan porphyry molyb⁃denum deposit. Finally the prospecting targets in the area, the main minerals, key technology and exploration technology deployment, etc. were put forward.
  • 摘要：尾矿高浓度输送设计现已成为尾矿输送的首选。本文通过对尾矿高浓度设计经验的总结，概括出尾矿高浓度设计的一套方法，以期和大家共同探讨学习，做好尾矿输送设计工作。%The transportation of high concentration tailings has become the preferred design for tailings transportation. Based on the experience of design of high concentration tailings, a set of methods of high concentration tailings design werer sum⁃marized in order to study and discuss together to provide good design work for tailings transportation.
  • 摘要：At present, the PLC control system is widely used in the metallurgical industry, and automatic control plays a very important role in the production process control. Especially in the production place where a lot of field equipment, in⁃stallation of scattered, complex process exist, the failure of PLC control system has a direct impact on the production out⁃put, resulting in a certain economic loss, while PLC control system power supply fault accounts for more than half of the o⁃verall system faults. The power supply of PLC control system of JISCO burn factory is chosen as the test object. In order to improve the power supply reliability of PLC control system, an automatic switching device of standby power supply circuit is installed, When the PLC power supply fails, the PLC control system is automatically switched to the standby power supply circuit to improve the reliability of power supply, which is very important for stable production.%目前PLC控制系统在冶金行业应用广泛，自动化控制在生产过程控制中起着十分重要的作用。尤其在一些现场设备多、安装分散、工艺流程复杂的生产场所，因PLC控制系统出现故障直接影响生产产量、造成一定的经济损失，而PLC控制系统供电故障占系统故障的一大半。本文以酒钢选烧厂PLC控制系统供电为试验对象，为了提高PLC控制系统供电可靠性，安装一种备用供电电路自动切换装置，解决了当PLC供电出现故障时，自动将PLC控制系统供电切换到备用供电电路，提高了PLC控制系统供电的可靠性，对稳定生产十分重要。
  • 摘要：Bismuth vanadate, as one of the non⁃titania⁃based visible⁃light⁃driven semiconductor photocatalysts,has attracted much attention due to its narrow band gap of 2.4 eV (monoclinic phase)and responding to visible light.So far most of the photocatalysts can only function in ultraviolet band, it is necessary to develop new photocatalysts that can function at visible light band in order to exploit solar energy. A new type of non⁃titania⁃based photocatalyst, BiVO4, with high catalytic activity under visible light irradiation, was summarized, including the controllable synthesis of nano BiVO4 , photocatalytic activity of BiVO4 and method to improve the photocatalytic performance of BiVO4 .%BiVO4作为一种非TiO2基的半导体光催化剂，其禁带宽度较窄，为2．4 eV（单斜相），能在可见光区响应，因而受到了广泛的关注。到目前为止大部分的光催化剂只能在紫外光区域发挥作用，因此很有必要去开发在可见光区域发挥作用的新型光催化剂，以便于更好的利用太阳能资源。本文综述了一种新型非TiO2基可见光照射下具有高效催化活性的光催化剂———BiVO4，包括BiVO4的可控合成和光催化活性以及提高BiVO4光催化性能的主要方法。
  • 摘要：This paper describes the major measures of how to strengthen computing and seismic structure, which is suitable for tall buildings of nearly 100m height in highly seismic region and its structure aspect ratio between 6 to 8.%本文介绍抗震设防烈度为8度的高烈度地区、房屋高度接近100 m、结构高宽比在6～8之间的高层建筑结构为达到抗震性能设计要求，所采取的主要加强计算措施以及抗震构造加强措施。
  • 摘要：对于建设工程的招标人来说，重要的是如何找到理想的、有能力承担建设工程任务的合格单位，用经济合理的价格，获得满意的服务和产品。根据建设工程的通常做法，建设工程的招标人均是严格按照法律法规的规定，通过招投标形式选择建设工程任务的实施单位，包括设计、监理、施工承包和供货等单位。可见利用招投标形式选择合格的实施单位，一方面从法律上保证了项目和项目法人的合法性，另一方面，也从技术上和经济上为项目的顺利实施提供了支持和保障。%It is important for the tenderee to find an ideal and qualified units who has the ability to undertake construction projects and obtain satisfactory service and products with economic and reasonable price.According to the common practice of construction project, the tenderee always choose the units by bidding strictly in accordance with the provisions of the laws and regulations, including design,supervision,construction and procurement of goods. On the one hand, itcould ensure the legitimacy for the project and the project legal person to choose the units by bidding. On the other hand, it could provide support and protection technically and economically for the project implementation.
  • 摘要：针对甘肃某公司所属的铜冶炼渣成分复杂、嵌布粒度不均匀的性质特点采用优先快速浮选出一部分易浮铜矿物得到合格的铜精矿1，优先浮选尾矿经一次粗选、三次精选、一次扫选获得合格的铜精矿2，一次精选中矿及扫选中矿返回球磨机再磨的工艺流程，铜粗选二采用针对该铜冶炼渣性质研制的新型捕收起泡剂酯－11，闭路试验获得了铜品位为29．69％，铜回收率为85．62％的总铜精矿，试验指标良好，为现场工艺改进提供了技术依据。%In view of the characteristic of composition complex, uneven disseminated extent of copper smelting slag in a Gansu enterprise, the following flowsheet was adopted:a part of copper content of easy floatation was floated with rapid se⁃lective⁃flotation to acquire copper concentrate 1, then the qualified copper concentrate. 2 was acquired by once roughing, triple refined concentration and once scavenging from the preferential flotation tailings, the middings of once concentrating and scavenging was returned to ball mill. The new collecting foaming agent ester⁃11 which was developed aiming at the char⁃acteristic of this slag was adopted in the second copper roughing. Closed⁃circuit test obtained the total copper content with copper grade 29.69%, copper recovery 85.62%, the indexes was well, which provides technical basis for process improve⁃ment.
  • 摘要：通过扫描电镜和能谱仪对冷轧镀锌基板出现的孔洞缺陷进行了分析，结果表明孔洞处聚集的大量夹杂物是引起孔洞的原因，对冷轧原料的生产提出了改进建议。%The cavity causes of galvanizing sheet were analyzed by SEM and energy spectrometer.The result showed that the cavity was caused the aggregated inclusions. Suggestions on production of cold rolling materials are given.
  • 摘要：The tectonic structure of the Fengxian⁃Taibai Ore Cluster in Guoansi⁃Baiyanggou area in Shannxi province, is lo⁃cated in the damping part of the north china plate and Yangtze plate, with metallogenic zoning in the middle part of the Qin⁃ling gold polymetallic belt in the Devonian. The rich ore⁃forming materials in the volcanic rocks and metamorphic volcanic rocks at the bottom of Fengxian⁃Taibai sea basin offer a wide range of source materials for the formation of the gold mineral. In addition, the strong tectonic activities in the area provide dynamic conditions for the migration of hydrothermal fluid and activation of ore⁃forming materials. All kinds of fracture structures along with the earth’ s crust activity provided channels for the migration of ore⁃forming materials, also provide a favourble space for the congregation and conserve of metallogenic ma⁃terials. In view of the practical work in this area, and on the basis of analyzing the known metallogenic environment and ore controlling factors of Fengxian⁃Taibai mineral cluster, and comprehensive study of the regional mineralization geological background, geological characteristics and geochemical information, prospecting potential for exploration of gold deposit in this area is analyzed with favorable conclusion.%国安寺－白杨沟地区所在凤太矿集区大地构造位于华北板块与扬子板块的夹持部位，成矿区划上处于秦岭泥盆系金－多金属成矿带中段。凤太海盆沉积基底火山岩及变质火山岩中丰富的成矿物质，为区内金属矿产的形成提供了大量的物质来源。此外，区内地壳构造活动强烈，为热液的运移、成矿物质的活化及迁移提供了动力学条件，伴随地壳活动产生的各种断裂构造为成矿物质的运移提供了通道、也为成矿物质的聚集和保存提供了有利的空间。笔者结合野外实际情况，在分析对比凤太矿集区已知金矿床的成矿环境和控矿要素的基础上，通过综合研究该区成矿地质背景、地质特征和地球化学资料，对该区进行找矿潜力分析，认为该区有较好的找金前景。
  • 摘要：本文通过高炉炉体检修中炉皮挖补埋铜管检修工艺方案解决在高炉炉体的检修中工作量大、检修工期短、质量要求高等问题。在高炉炉体检修中，可选择的方案比较多。本文中主要阐述酒钢1＃高炉中检修工艺自编方案，本方案通过高炉炉皮挖补埋铜管检修工艺，从而达到提高质量、缩短工期、确保安全、增进综合经济效益的效果。%To solve the problems of intense labor, short overhaul period and high quality requirement in the overhaul of the furnace, a overhaul process of digging the furnace wall and laying copper pipes for the overhaul of the furnace was proposed. Many schemes for the overhaul of the furnace can be selected. The self⁃made scheme for the overhaul of the 1#furnace was expounded, which can inhance quality, shorten work period, ensure safety and improve overall profit by adopting the process of digging the furnace wall and laying copper pipes.
  • 摘要：酒钢3＃、4＃焦炉干熄焦系统设计干熄炉型为JNG90⁃2，设计生产能力为140 t／h，设计排焦温度低于205℃，本文以3＃、4＃炉干熄焦为实例，阐述了干熄焦排焦温度给干熄焦系统带来的不良影响，分析影响干熄焦系统排焦温度的主要因素及如何控制系统的排焦温度。%The oven type of the dry⁃drenchchamber designed for the 3# and 4# CDR systems is JNG90⁃2 with capacity of 140t/h and coke⁃charge temperature of lower than 205℃. By taking the CDR of 3#and 4#for example, the inferior effect on the CDR brought from the coke⁃charge temperature is expounded, analysis is made on the factors affecting the coke⁃charge temperature of the CDR and how to control it.
  • 摘要：Abstact:To strengthen the construction of geological data information infrastructure,optimized development environment of geological data information,Geological data for the suppor fou Geological exploration economic development.Author is a Geo⁃logical data information management, Involved in the overall process of Geological information Bureau of Geology and Ex⁃ploration for Nonferrous Metals Geological data information construction,In this paper, combined the actual work,Summari⁃zing theFour aspects about how do our best fou Geological data information construction,To guide the further work.%加强地质资料信息基础设施建设，优化地质资料信息化发展环境，为地勘经济发展提供有力的地质资料支撑。笔者作为一名地质资料信息管理人员，参与了甘肃省有色金属地质勘查局地质资料信息化建设的整个过程。本文结合工作实际，总结归纳了做好地质资料信息化建设的四个方面，以期指导进一步工作。
  • 摘要：我国农业对外直接投资发展一直很迟缓，截止2014年，对外直接投资额达到1400亿美元，对外投资额增长14．1％，首次超越千亿美元，而农业对外直接投资仅占5％左右。推进农业对外投资已经迫在眉睫。本文首先介绍了我国农业对外直接投资的现状，由此可以看出其中存在的必然问题，再相比其他国家的投资经验和教训，提出正确的区位选择和参与方式。最后，就农业对外直接投资的发展目标提出相关政策建议。%Foreign direct investment in the development of agriculture has been very slow. Till 2014, foreign direct invest⁃ment reached $ 140 billion.The amount of foreign investment has been increased by 14.1%, which breaks through the bil⁃lions of dollars for the first time.While agriculture accounted for only about 5%, promoting foreign investment in agriculture is imminent. The essay starts with the status of FDI in our country.And then it analyzes the facing difficulties in the process of investment.Firstly, it proposes corresponding countermeasures to achieve the development goals.
  • 摘要：分析内蒙古赤峰某锌冶炼厂酸浸出－沉矾工艺中沉矾渣、高酸渣渣锌偏高以及沉矾后液铁含量偏高的问题。通过采用相应的技改优化措施，不仅降低了沉矾渣与高酸渣的锌含量，同时通过调整辅料加入方式，使沉矾分梯度进行，也降低了除铁后液铁浓度，减少了辅料用量，优化措施实施后产生了可观的经济效益。%The problems of high zinc contents in the jarosite precipitation slag and high⁃acid slag, in the acid⁃leaching and jarosite⁃precipitation process in a zinc smelter in Chifeng city, Inner Mongolia were analyzed. By the adoption of respective improvement measures, the zinc contents in the jarosite precipitation slag and high⁃acid slag was reduced. Meanwhile, by adjusting the feeding way of the supplementary materials to make jarosite precipitation gradiently, the iron concentration liq⁃uid after iron removal was reduced with reduction of supplementary materials consumption. Significant profit has been a⁃chieved after the implementation of the optimization measures.
  • 摘要：The stress⁃strain curves of heat resistant steel 310S columnar crystal structure at the deformation temperature of 1 000~1 200 ℃ and strain rate of 0.01~30 s⁃1 were obtained by Gleeble⁃1500 thermal simulation test machine. The influ⁃ence of hot deformation parameters on flow stress is analyzed by adopting high temperature deformation mechanism, and the constitutive equation of 310S high temperature deformation can be established for numerical simulation of rolling process.%通过 Gleeble⁃1500热模拟实验获得了耐热钢310S柱状晶组织在变形温度为1000～1200℃，应变速率为0．01～30 s－1条件下的应力⁃应变曲线。实验利用高温变形机理分析了热变形参数对流动应力的影响规律，建立了可用于轧制过程数值模拟的310S钢柱状晶组织高温变形的本构方程。
  • 摘要：The ore field is located in the intersection of western section of the Tianshan Mountgeosyncline folding belt and the Zhungeer⁃Alatao Mount geosyncline folding belt, in the Jiekeli⁃Sailimu copper mineralization belt of Sailimu massif, is a favorite area for prospecting for strata⁃bound lead⁃zinc polymetallic deposit and nonferrous and rare⁃metallic deposit relavant to medium⁃acidic invasive rock. The lead⁃zinc deposit is characterized with thick orebody, high grade and obvious sedimen⁃tation.%矿区位于天山地槽褶皱带西段与准噶尔－阿拉套山地槽褶皱带交汇部位，处于赛里木地块捷克利－赛里木铜成矿带，是寻找层控型铅－锌多金属矿和与中酸性侵入岩有关的有色及稀有金属矿产的有利地区。铅锌矿厚度大，品位高，沉积作用明显。
  • 摘要：湿法冶金生产工艺中，有机萃取是常见的工艺，生产过程中有机液体的颜色及色深（吸光度），是工艺指标性参数，但是对于有机液体的在线测量，因缺乏成熟的仪器，目前大多靠人眼目测和实验室比对的方式。我们以比尔－朗伯定律为理论依据，通过对有机液体吸光度变化与光电吸收关系的研究，开发了有机液体吸光度检测仪，并投入了现场应用，取得了良好的效果。%In wet⁃process metallurgy industry, organic extraction is a common technique. The color and color depth ( absor⁃bance) of organic liquid are process parameters of the production process, but the on⁃line measurement of the organic liq⁃uid, mainly depends on human visual inspection and laboratory comparison at present, due to the lack of maturity of the in⁃strument. Based on the Beer⁃Lambert law and study of relationship between organic liquid absorbance changes and photoe⁃lectric absorption, we developed the organic liquid absorbance detector has been developed and put into field application, and good results were achieved.
  • 摘要：本文充分调查了废弃玻璃的回收与利用情况，以实验室废弃玻璃的性质为基础，提出了将实验室废弃玻璃应用到分析铅阳极泥和铅精矿中金、银含量的观点，并进行了相关的试验研究，实验样品包括铅阳极泥和铅精矿。通过对实验结果的分析，确定了实验室废弃玻璃替代二氧化硅作为一种化学试剂用于铅阳极泥和铅精矿中金、银含量的试剂用量，保证了分析结果的准确性满足标准方法所规定的精密度要求范围。%In this paper, the recovery and utilization of laboratory waste glass are fully investigated. Based on the chemical properties of laboratory waste glass, we proposed the view of Applying the waste glass produced in laboratory to fire assay to determine the content of gold and silver in lead anode mud and lead concentrate. Concurrently the experiment was carried out. The experimental samples include lead anode mud and lead concentrate. Through the data analysis, we determined the amount of waste glass in laboratory instead of silica as a chemical reagent in Fire assay method to determine the content of gold and silver in lead anode mud and lead concentrate. The accuracy of the analysis results were ensured, and the require⁃ments of precision by standard methods were satisfied.
  • 摘要：Steel iron 2 x 265 m2 sintering system of mixing machine, mixer since put into production roller bearing different sound, fever and bearing dynamic problems occur frequently, are accident black point of mixing machine equipment, pro⁃duction disruptions influence sintering mineral quality. Produce the factor of the accident is more, through to the mixing ma⁃chine roller structure improvement and eliminate faults from the device itself factors, making good use effect, is worthy of popularization and application.%型钢炼铁厂2×265 m2烧结系统的混合机，自投产以来混合机托轮轴承异音、发热及轴承窜动问题频繁发生，是混合机设备的事故多发点，造成生产中断影响烧结矿产质量。产生事故的因素较多，通过对混合机托轮结构改进，从设备本身消除故障因素，取得良好使用效果，值得推广应用。
  • 摘要：Hydraulic station is the key equipment of hoister braking system, the braking system of mechanical, electric and hydraulic integration. To simplify the debugging process, shorten the debugging time and improve equipment utilization, by inserting isolation stop valve between the safety protection area and operation control area in the original ABB ( 3AST003986⁃⁃CEK) constant deceleration hydraulic braking system to realize effective isolation of, which is debugging the system should be retrofitted between the constant decelerating hydraulic braking system of protective zone and working condition of control ( proportional control) . Closing the stop valve 23 can implement the effective isolation of valves, which can simplify the of debuggingprocess, shorten the debugging time and improve equipment utilization.%液压站是提升机制动系统的关键设备，是机、电、液一体的制动系统。为了简化调试程序、缩短调试时间、提高设备的有效利用率。通过在原ABB（3AST003986—CEK）恒减速液压制动系统中的安全保护区与工况控制区（比例控制）之间加装调试隔离截止阀23，关闭此阀能够实现对比例控制阀16、直动式溢流阀17与比例控制阀10、11的有效隔离，从而达到简化调试程序、缩短调试时间、提高设备的有效利用率。
  • 摘要：本文对酒钢焦化厂5＃、6＃捣固焦炉自2011年底投产以后，在冬季极端最低温度近零下30度的生产环境下，经常出现的装煤车煤箱冻箱、捣固机捣固锤在煤饼捣固过程中提锤困难、煤塔蓬料给料机不下煤等问题进行了简单分析，并针对几项严重影响焦炉冬季生产的具体问题，结合酒钢焦化厂生产和技术改造实践提出了可行的解决措施，防止了事故的发生，稳定了生产秩序。%Inview of the problems occurred at the 5# and 6# tamping coke ovens of the coking plant of JISCO since their commissioning in 2011, during extreme winter seasons of lowest temperature of around 30℃, such as material freezing in the coal bin ofthe loading cart , liftingdifficultyof the tamping hammer for the tamping unit in the tamping process of coal cake production, and feeding fault duo tothrottling of materials in the coal tower, concise analysis was carried out. Targeting to the specific problems seriously affecting the coke oven production in winter, feasible solutions were proposed in combina⁃tion with the practice of technical improvement to prevent accident and stabilize production process.
  • 摘要：The key to improve the quality of bearing steel is to increase the fatigue life. One of the methods to increase the fatigue life is to improve the uniformity of structure,decrease of the level of carbide tissue of bearing steel is very important. Billet with size of 235×265mm was selected and rolled by the 800 rolling mills,then cooled with the PCS cooling system, fi⁃nally the GCr 150 bearing steel with diameter of 50mm was under water⁃cooling test. The test results showed that the carbide tissue grade is high for the bearing steel without water cooling, and the carbide tissue deduction was not One steel adopt the size of billet is not obvious for the single cooling process due to the temperature recovery from the center, while the carbide tissue network reduction was effective for the dual⁃phase cooling process due to the sufficient temperature recovery period acquired by the long cooling distance. The carbide tissue deduction was effective for the triple cooling phase, with carbide tissue network grade of less than 2.5.%提高轴承钢质量关键是提高轴承钢疲劳寿命，轴承钢提高疲劳寿命方法之一就是提高钢材的组织均匀性，降低轴承钢棒材网状是提高组织均匀性关键之一。某钢厂采用235 mm×265 mm连铸坯，通过800连轧机组轧制，采用PCS冷却系统冷却，对GCr15轴承钢Ф50进行水冷试验。通过试验表明，轴承钢棒材轧后不进行水冷网状组织级别较高，单段水冷系统冷却由于最后由心部返温，降低网状效果不明显，采用两段次需要充分考虑水冷段距离，距离较远有充足的返温时间，然后再进行冷却，能够有效降低网状组织。三段水冷全部投入使用能够有效降低网状，最终轴承钢的网状级别可控制在2．5级以内。
  • 摘要：Baladacai tungsten⁃tin deposit is located at about 160km south of Golmud city, Qinghai province. It is tectonical⁃ly in the binding site of Muzitage⁃Buqingshan melange betl and Maduo⁃Maqin accretionary wedge, between Gande⁃Maduo fracture and south Kunlun fracture. The geological condition and prospecting potential in this area are favorable. The main mineralization characteristics and mineral composition of Baladacai tungsten⁃tin deposit are clear and definite by the field geological survey and the detailed observation of hand specimens, the main ore⁃controlling factors and prospecting marks are summarized by comparing the domestic tungsten⁃tin deposits and Baiganhu tungsten⁃tin ore field. It is preliminary consid⁃ered to be the high temperature quartz vein⁃greisen type tungsten⁃tin deposit controlled by magmatic and tectonic activities.%巴拉大才钨锡矿点位于青海省格尔木市以南约160 km处；构造上位于甘德－玛多断裂与昆南断裂之间，木孜塔格－布青山混杂岩与玛多－玛沁增生楔结合部位；区内地质条件良好，找矿潜力较大；笔者通过对巴拉大才钨锡矿点进行野外地质调查及手标本、光薄片进行详细观察与鉴定，查明了区内主要矿化体特征、矿石成分，并通过对比国内及区内白干湖钨锡矿田，总结了巴拉大才钨锡矿点主要控矿因素和找矿标志，初步认为该矿点为受岩浆与构造活动控制的中高温石英脉－云英岩型钨锡矿点（床）。
  • 摘要：Through prospecting practice in high altitude mining area utilizing the percussive reverse circulation drill, the advantages and disadvantages of the Explorac 100 type drilling rig in above 5100 m altitude mining are expounded, and some correction opinions are put forward to provide reference for the application of equipment in high altitude mining.%本文通过冲击式反向循环钻在高海拔矿区所进行的生产探矿实践，详细阐述了Explorac 100型钻机在5100米以上高海拔矿山运用的优缺点，通过验证提出了相关改正意见，为高海拔矿山中设备的应用提供了借鉴。
  • 摘要：To make structural optimization on the centering device of dummy bar in the traditional continuous slab caster, the original hydraulic power pack was adjusted to the simple electric actuator with accurate head positioning function. Rapid replacement of the centering head was designed realize quick head replacement by actuator. After structural optimization, the centering device is more accurate in positioning with simpler operation and more convenient maintenance compared with the original hydraulic kick⁃off claw.%本文针对传统常规板坯连铸机的引锭对中装置进行结构优化，将原有庞大的液压动力装置调整为简约的电动装置，并带有顶头精确地定位功能；设计了对中装置顶头快换装置，实现了电动快速更换顶头的功能。通过结构优化，该对中装置较原有的液压拨爪装置定位更精确，操作更简单，维护更方面。
  • 摘要：本文介绍了气体流量计量在线比对技术现状，对气体流量在线比对技术进行了分析，针对技术应用要点及注意事项等问题提出了相应的改进建议。%In this paper, the contemporary gas flow rate evaluation techniques are introduced, and analysis on the the gas flow rate evaluation techniques is carried out, and corresponding improvement suggestions are put forward in view of the main points of the technical application and concerns.
  • 摘要：为了消化八钢历年积存的大块废钢和难加工的废钢，2014年起，八钢做了诸多的工艺创新，解决了历年遗留的废钢大块2．5万余吨，本文予以浅述。%To exploit long⁃period residues of lump scrap and refractory scrap, multiple process innovations have been car⁃ried out in the Bayi Iron and Steel Corporation. More than 25 000 tons of residual scraps were processed. A summary was made in this paper.
  • 摘要：The big bar line has not implement the high⁃pressure water drop process since its establishment and operation in 2011,in the smelting and rolling works of Hongxing Co.. TO realize the high⁃pressure water drop process for energy saving and consumption reduction, according to operation situation of the turbid circulating water system, economic analysis were made on the equipment, process and management, necessity of the system rebuilding was studied and corresponding rebuil⁃ding scheme was proposed and implemented. The effect of the rebuilding was demonstrated.%酒钢宏兴股份公司炼轧厂大棒线2011年建成投产后，未实现高压穿水工艺。根据浊环水系统的运行现状，为实现高压穿水工艺，并实现节能降耗，我们从设备、工艺和管理角度进行经济性分析，研究了改造的必要性并提出相应的改造方案，予以实施；对实施后的效果进行论证。
  • 摘要：There more than 60 ferrite deposits in the survey area, with 2 proved large⁃scale ferrite deposits, 12 proved mid⁃dle⁃scale deposits and 35 proved small⁃scale deposits. 3 newly discovered large⁃scale ferrite deposits are in the prospecting stage, wherein the Kawali ferrite deposit possesses super⁃large⁃scale prospect. The types of the deposits are rich, mainly magnetite, siderite, mirror, hematite, and also symbiotic copper, lead and zinc. Iron genesis types are magmatic hydrother⁃mal, skarn, marine hot brine "Sedex" (Jingtieshan type), marine volcanic ⁃ sedimentary class "VMS" (Zhulongguan type) , marine volcanic sedimentary⁃metamorphic, marine sedimentary. Therefore it is of significant importance both scien⁃tifically and practically to engage in systematic study on the ferrite deposits and delineation of metallogenic epochs and pre⁃liminary study of metallogenic series in this area.%研究区内铁矿产地达60余处，目前已探明大型铁矿床2处、中型矿床3处、小型矿床12处，矿点35处。近年新发现正在开展地质找矿工作的大型铁矿床3处（黄沙泉铁矿、卡瓦铁矿、小张龙铁矿），其中卡瓦铁矿具有特大型前景。矿石类型十分丰富，主要有磁铁矿、菱铁矿、镜铁矿、赤铁矿，同时又有共生的铜、铅锌等。铁矿床成因类型有：岩浆热液型、矽卡岩型、海相热卤水“Sedex”型（镜铁山式）、海相火山岩－沉积类“VMS”型（朱龙关式）、海相火山沉积变质型、海相沉积型。因此对本区内铁矿床进行系统研究，成矿期次划分，初步的成矿系列研究具有理论上和实践上的重要意义。本文通过对矿床的分布特征进行分析归纳，进而指明该成矿带内铁矿的找矿方向。
  • 摘要：温泉钼矿是至今为止在西秦岭造山带上所发现的最大的一个斑岩型钼矿床，钼矿床产于温泉复式花岗岩体内部，钼矿化主要与陈家大湾细粒二长花岗斑岩和岩体裂隙有关。通过对温泉岩体不同期次侵入体中的钼元素含量统计，发现钼元素含量矿区范围内的岩体中高于外围，细粒二长花岗斑岩中的钼元素含量高于早阶段两次侵入的岩体，认为温泉钼矿床的钼元素主要来自于细粒二长花岗斑岩。通过对三次侵入的岩体地球化学特征与国内典型的斑岩型矿床地球化学特征的对比研究，认为温泉钼矿为斑岩型钼矿床，具斑岩钼成矿专属性。%s:The Wenquan molybdenum deposit is the largest porphyry⁃type molybdenum deposit ever discovered in western Qinling orogenic belt, the orebodies of this deposit occur in the Wenquan compound granite rockbody and the molybdenum mineralization is thought to be related to the fine⁃grained monzonite granite⁃porphyry that is exposed in Chenjiadawan and the fissures developed in the rockbody.Through counting the molybdenum element content of Wenquan Mo ore deposit and the three different periphery plutons, it finds that the molybdenum contents of plutons in mine area and fine⁃grained monzogranite porphyry stocks are higher than that of mine area periphery and the two early stage plutons, respectively. So the molybdenum element of Wenquan Mo ore deposit is mainly from fine⁃grained monzogranite porphyry. Wenquan Mo ore deposit has the metallogenic specialization of porphyry Mo ore deposit by contrast studies of the geochemical features of the three plutons and the domestic classic porphyry Mo deposits.

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