石材矿山地下开采工艺研究

发布时间：2018-01-24 15:26

本文关键词： 石材地下开采开拓回采通风模拟　出处：《西南科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：石材资源在我国分布广泛,储量大,但我国石材工业起步较晚,长期仅凭传统采石经验进行露天生产,不仅效率低,而且资源浪费和环境破坏的情况非常严重,部分地区由于地势险要或矿体埋藏较深而无法进行露天开采,从而无法将资源优势转化为经济优势。为提高资源利用率和保护环境,针对石材进行地下开采工艺进行研究对石材行业和矿业经济的发展有重要的意义。本文基于需要开采荒料的石材开展地下开采工艺研究,通过分析石材地下开采特点,类比目前已经较为成熟的金属矿山开采方式,提出适合石材地下开采的开拓、采切和回采方式,从理论上确保石材地下开采可行;并针对现有的石材锯切机械进行研究,根据其不同的特点提出适合不同开采阶段的锯切组合方式及锯切设备数量配比计算方法,不仅可以提高设备利用率,还可以缩短开采时间,从技术上确保石材地下开采可行;最后根据前文所提出的开拓、采切及回采方式对采场进行建模,采用fluent软件对采场通风效果进行模拟,从通风的角度验证前文所提出的回采顺序安全可行,并指出在类似的硐室型采场内通风和回采推进方向的关系。本文对石材地下开采进行了工艺方面的研究,从理论和技术上验证了石材地下开采的可行性,为进一步研究石材地下开采提供了参考。
[Abstract]:Stone resources are widely distributed and have large reserves in our country, but the stone industry of our country started late, and only based on the traditional quarrying experience for a long time to open production, not only low efficiency, but also the waste of resources and environmental damage is very serious. In some areas, because of the dangerous terrain or deep buried orebody, it is impossible to open pit mining, so it is impossible to transform the advantage of resources into economic advantage, in order to improve the utilization rate of resources and protect the environment. The research on underground mining technology of stone is of great significance to the development of stone industry and mining economy. By analyzing the characteristics of underground mining of stone materials, comparing with the metal mining methods which have been more mature at present, the paper puts forward the suitable ways of underground mining of stone materials, which can ensure the feasibility of underground mining of stone materials theoretically. And according to the existing stone sawing machinery research, according to its different characteristics, suitable for different mining stages of sawing combination and sawing equipment calculation method, not only can improve the utilization rate of equipment. It can also shorten the mining time and technically ensure the feasibility of underground mining of stone materials. Finally, according to the development, cutting and mining methods proposed above, the stope is modeled, and the ventilation effect of stope is simulated by fluent software. From the point of view of ventilation, this paper verifies the safety and feasibility of the mining sequence proposed above, and points out the relationship between ventilation and mining direction in similar cavern stope. This paper studies the technology of underground mining of stone materials. The feasibility of underground mining of stone materials is verified theoretically and technically, which provides a reference for further study of underground mining of stone materials.
【学位授予单位】：西南科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD872

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