云南蒙自白牛厂银多金属矿矿产资源经济及资源潜力评价

发布时间：2018-01-06 13:15

本文关键词：云南蒙自白牛厂银多金属矿矿产资源经济及资源潜力评价　出处：《昆明理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：矿床经济评价是在矿床地质评价的基础上,根据矿床的技术条件和经济条件,在未来一定时期内对已探明矿产储量进行工业开发的经济效益的评估。矿床经济评价在企业进行矿床地质勘查、矿山设计建设和开发时都有着十分重要的指导意义。本论文从地质、技术、经济、资源潜力四方面入手对白牛厂银多金属矿进行技术经济评价。取得的成果与认识如下： 1、白牛厂银多金属矿区域成矿条件良好,属沉积-改造-岩浆热液叠加矿床,矿体赋存于中寒武统田蓬组上部(∈2tc)砂泥岩和碳酸盐岩中,容矿岩石为硅质岩类。在空间展布规律上矿体主要有似层状-透镜状矿体、脉状矿体与陡倾脉状-细脉状-网脉状矿体。矿物成分较为复杂,主要金属矿物有黄铁矿、磁黄铁矿、铁闪锌矿、闪锌矿、方铅矿等,矿石的结构主要有沉积成矿作用形成的变胶状结构、草莓状结构、粒状、条状结构等；热液成矿作用形成的包嵌结构、固溶体出溶结构和交代结构等；应力作用形成的斑状变晶结构、柔皱结构和糜棱结构等。矿石构造按成因可分为同生沉积构造、滑动变形构造、后生构造,典型的有块状构造、浸染状构造、细脉状-网脉状构造、角砾状构造。 2、经储量估算,白牛厂矿区内累计查明矿石量共2933.6879万吨,其中金属量银2825.527吨、铅500474吨、锌890684吨,共生锡矿石量1803.965万吨、金属量62366吨,伴生锡矿石量588.9524万吨、金属量6964吨。截止2013年9月白牛厂矿区内保有资源储量矿石量2161.2226万吨,其中金属量银1653.907吨、铅284767吨、锌586440吨,共生锡矿石量1354.4787万吨、金属量43586.吨、伴生锡矿石量460.3449万吨、金属量5055吨。消耗资源储量为矿石量772.4653万吨,其中金属量银1171.62吨；铅215707吨；锌304244吨；共生锡矿石量449.4863万吨,金属量18780吨；伴生锡矿石量128.6075万吨,金属量1909吨。 3、银铅锌的工业发展与国内生产总值相关性平稳保持在O.98-1.1,2012年1-12月,银铅锌冶炼业销售收入总额达到2600.829亿元,同比增长14.57%,高于工业平均水平的11.04%。预计在未来一定时期内,随着我国工业化、城市化对能源、有色金属的需求量不断增大,电力、交通、建筑、机械、航天航空及军工等行业迅猛发展,必然导致银、铅、锌等有色金属需求量继续增大。在这个大的有利背景下,白牛厂银多金属矿的开发将会创造巨大的经济效益与社会效益。 4、本论文运用矿床技术经济评价中常见的净现值和内部收益率等动态指标从多个角度对白牛厂银多金属矿进行评价,得出税后内部收益率61.6%,投资回收期3.5年,利润总额218347.52万元,税后利润163760.63万元,财务净现值为103370.62万元,潜在经济价值巨大,开发此矿山企业所获经济效益极为明显。 5、针对白牛厂矿区年生产矿石量较大、矿山服务年限相对较短、需继续寻找矿产资源等问题,本论文根据矿体的分布特征及变化规律提出了四个找矿靶区,另还有334类型矿石量4474.8347万吨未列入本次评价范围,由此可见,白牛厂银多金属矿资源潜力巨大,开发前景甚为乐观。
[Abstract]:Deposit economic evaluation is based on geological evaluation, according to the technical conditions of deposit and economic conditions, to assess the economic benefits of industrial development has proven mineral reserves in the next period of time. The economic evaluation of deposit deposit in geological prospecting enterprises, mining design and construction and development have important guiding significance.
In this paper, the technical and economic evaluation of the silver polymetallic ore in Bai Niu factory is carried out from four aspects of geology, technology, economy and resource potential. The achievements and understanding are as follows:
1, the Bainiuchang silver polymetallic deposit metallogenic condition is good, is a depositiontransform - magmatic hydrothermal superimposed deposit, orebodies occur in the Middle Cambrian Tianpeng formation (upper 2TC) sand mudstone and carbonate rock, ore bearing rock siliceous rocks. The spatial distribution of orebodies are mainly like layered lenticular orebodies, and steep vein vein veinlet stockwork orebody. The mineral composition is complex, the main metallic minerals are pyrite, pyrrhotite, sphalerite, galena, sphalerite, ore structure are variable plastic shaped structure formed in sedimentary mineralization, strawberry shaped structure, granular, strip package structure; block structure formation of hydrothermal mineralization, exsolution texture and metasomatic structure; stress formed metacrystal structure, wrinkle structure and mylonitic structure. The ore structure according to the genesis can be divided into syngenetic sedimentary tectonic deformation, sliding structure The formation of the epigenetic structure, typical of the block structure, disseminated structure, fine pulse - network pulse structure, breccia structure.
2, the reserve estimates, Bainiuchang ore accumulated identified a total of 29 million 336 thousand and 879 tons, of which the amount of metal silver 2825.527 tons, 500474 tons of lead, zinc and 890684 tons, 18 million 39 thousand and 650 tons of tin ore symbiosis, the amount of 62366 tons of metal, with tin ore capacity of 5 million 889 thousand and 524 tons, the amount of 6964 tons of metal. The ending 2013 9 white cattle factory in the mining area of ore resources reserves of 21 million 612 thousand and 226 tons, of which the amount of metal silver 1653.907 tons, 284767 tons of lead, zinc and 586440 tons, 13 million 544 thousand and 787 tons of tin ore symbiosis, the amount of 43586. tons of metal, with tin ore capacity of 4 million 603 thousand and 449 tons, the amount of 5055 tons of metal. The consumption of reserves of 7 million 724 thousand and 653 tons of ore, the amount of metal silver 1171.62 tons of lead; 215707 tons; 304244 tons of zinc; symbiosis of tin ore is 4 million 494 thousand and 863 tons, the amount of 18780 tons of metal; associated tin ore capacity of 1 million 286 thousand and 75 tons, the amount of 1909 tons of metal.
3, industrial development and GDP correlation stable Ag Pb Zn maintained at O.98-1.12012 years 1-12 months, silver lead zinc smelting industry total sales revenue reached 260 billion 82 million 900 thousand yuan, an increase of 14.57%, higher than the industry average level of 11.04%. is expected in the next period of time, as China's industrialization, city of energy, demand for non-ferrous metals continued increase power, transportation, construction, machinery, aerospace and military industries rapid development, will inevitably lead to silver, lead, zinc and other non-ferrous metals demand continues to increase. Under this favorable background, the development of Bainiuchang silver polymetallic ore will create enormous economic benefits and social benefits.
4, the use of technical and economic evaluation of deposit in common NPV and IRR dynamic index to evaluate on the bovine silver polymetallic ore from many angles, the internal revenue tax rate of 61.6%, the payback period is 3.5 years, a total profit of 2 billion 183 million 475 thousand and 200 yuan, net profit of 1 billion 637 million 606 thousand and 300 yuan, the financial net present value is 1 billion 33 million 706 thousand and 200 yuan and the huge potential economic value, the development of the mining enterprises the economic benefit is very obvious.
5, the Bainiuchang ore production amount is larger, the service life of the mine is relatively short, need to continue to search for mineral resources, this paper is based on the distribution characteristics and variation regularity of orebody and puts forward four prospecting target area, and the other 334 types of 44 million 748 thousand and 347 tons of ore are not listed in the scope of this evaluation, thus, the Bainiuchang silver polymetallic ore resource potential, development prospects are very optimistic.

【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：F426.1

【参考文献】