矿井通风三维仿真优化及可控循环风研究
发布时间：2018-07-18 13:11
【摘要】：在深井矿山开采中,通风系统作为井下生产的安全保障,对矿山安全十分重要。随着我国对矿石需求量的迅猛增长以及矿山开采年限、矿山开采深度的增加,在矿井通风系统方面,面临两个问题：复杂通风网络的解算优化以及如何经济合理的向深部矿井送风。本文以红透山铜锌矿为例,详细研究了问题的解决方案。本文在对国内外相关文献分析的基础上,研究了矿井通风理论,基于Ventsim三维通风仿真软件,建立了红透山矿超过8700条、120kmm长巷道的大型通风系统三维模型,对矿山的通风现状进行了模拟。在制定通风系统测试方案基础上,对井下不同风机开启状态时的通风现状进行测试和数据分析,发现浅部矿井存在一定的漏风,需要加强密闭。另外,模拟结果与实测结果偏差小于6%,证明所建模型的准确性；进而提出了深井通风系统改进的可行性方案,通过解算确定了在东侧新建风井的最优方案,其通风效率高达到71.5%。红透山矿开采已达到1300m,针对这种深部开采,在回风气流有害气体净化实验成果基础上,采用可控循环风技术用于红透山,解决深部矿井的节能送风问题。通过对红透山气流质量监测表明,混合入风的流质量完全符合国家有关规定,其节约能耗32.1%。Ventsim三维仿真模拟系统对矿井通风网络的解算及优化起到了至关重要的作用,为通风管理人员及决策人员提供了科学可靠的手段；可控循环风技术对深部矿井有良好的节能效果,它们都有很好的应用前景。
[Abstract]:In deep mining, ventilation system is very important to mine safety as the safety guarantee of underground production. With the rapid growth of the demand for ore in our country and the mining years, the mining depth of the mine increases, in the mine ventilation system, There are two problems: optimization of complex ventilation network and how to supply air to deep mine economically and reasonably. Taking Hongtuoshan copper and zinc mine as an example, the solution to the problem is studied in detail in this paper. Based on the analysis of relevant documents at home and abroad, the theory of mine ventilation is studied in this paper. Based on the Ventsim three-dimensional ventilation simulation software, a three-dimensional model of large ventilation system for more than 8700 long roadways with 120kmm length in Hongtuoshan Mine is established. The present situation of mine ventilation is simulated. Based on the test scheme of ventilation system, the ventilation status in different fan opening states is tested and analyzed. It is found that there is a certain air leakage in shallow mine, which needs to be strengthened. In addition, the deviation between the simulation results and the measured results is less than 6, which proves the veracity of the established model, and then puts forward the feasible scheme for improving the ventilation system of deep wells, and determines the optimum scheme for building new air wells on the east side through calculation, the ventilation efficiency of which is up to 71.5. 5. The mining of Hongtoushan Mine has reached 1300m. in view of this deep mining, based on the experimental results of harmful gas purification of return air flow, the controlled circulating air technology is adopted to solve the problem of energy saving and air supply in deep mines. The monitoring of the air flow quality in Hongtoushan shows that the quality of the mixed air flow conforms to the relevant regulations of the state, and its energy saving 32.1.Ventsim three-dimensional simulation system plays an important role in the calculation and optimization of mine ventilation network. It provides a scientific and reliable means for ventilation managers and decision makers, and the technology of controlled circulation air has good energy saving effect in deep mines, and they all have a good application prospect.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD724
本文编号：2132003
[Abstract]:In deep mining, ventilation system is very important to mine safety as the safety guarantee of underground production. With the rapid growth of the demand for ore in our country and the mining years, the mining depth of the mine increases, in the mine ventilation system, There are two problems: optimization of complex ventilation network and how to supply air to deep mine economically and reasonably. Taking Hongtuoshan copper and zinc mine as an example, the solution to the problem is studied in detail in this paper. Based on the analysis of relevant documents at home and abroad, the theory of mine ventilation is studied in this paper. Based on the Ventsim three-dimensional ventilation simulation software, a three-dimensional model of large ventilation system for more than 8700 long roadways with 120kmm length in Hongtuoshan Mine is established. The present situation of mine ventilation is simulated. Based on the test scheme of ventilation system, the ventilation status in different fan opening states is tested and analyzed. It is found that there is a certain air leakage in shallow mine, which needs to be strengthened. In addition, the deviation between the simulation results and the measured results is less than 6, which proves the veracity of the established model, and then puts forward the feasible scheme for improving the ventilation system of deep wells, and determines the optimum scheme for building new air wells on the east side through calculation, the ventilation efficiency of which is up to 71.5. 5. The mining of Hongtoushan Mine has reached 1300m. in view of this deep mining, based on the experimental results of harmful gas purification of return air flow, the controlled circulating air technology is adopted to solve the problem of energy saving and air supply in deep mines. The monitoring of the air flow quality in Hongtoushan shows that the quality of the mixed air flow conforms to the relevant regulations of the state, and its energy saving 32.1.Ventsim three-dimensional simulation system plays an important role in the calculation and optimization of mine ventilation network. It provides a scientific and reliable means for ventilation managers and decision makers, and the technology of controlled circulation air has good energy saving effect in deep mines, and they all have a good application prospect.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD724
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