滇西难采铜矿通风系统优化及采场通风模拟研究

发布时间：2018-03-20 12:07

本文选题：多级机站　切入点：通风网路　出处：《昆明理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：本文收集了通风系统优化所必须的基础性资料,对其进行分析、整理、归纳,并根据目前国内外风流调控技术及某铜矿生产条件,拟定采用多级机站串联、并联工作模式的风流输送与调节控制方案,对某铜矿通风系统优化研究。统筹考虑各级机站负责输送的风量,以及所要克服的沿程通风阻力,选择了各级机站风机型号;通过对拟定的多级机站方案应用通风网路计算机解算软件对风量分配、风压损失、动力消耗等参数进行了解算分析,得出了该铜矿的通风系统的优化改造方案,方案能有效的解决该铜矿通风系统存在的需风量不够,因没有形成系统的通风环境而矿井中形成忽上忽下、忽大忽小的自然风流的问题；根据下部开采方案,研究提出相应的通风系统建设规划,在转入深部采矿时,只需根据实际情况稍加调整就能继续发挥作用,满足了远期的生产需要；用Fluent对采场通风进行了模拟分析,在选择的采场辅扇工况点情况下,模拟采场内的风流场分布情况；建立了一套的比较全面、科学、符合实际的矿井通风系统方案优化指标体系,基于BP神经网络建立了通风系统评价模型,通过检验证明了模型的可行性。本文的创新点在于将Fluent软件运用于通风模拟,通过对采场的通风模拟,分析采场内风流场情况,所模拟出的计算结果与优化结果相互补充、相互验证。
[Abstract]:In this paper, the basic data necessary for the optimization of ventilation system are collected, analyzed, sorted and summarized, and according to the current domestic and foreign air flow control technology and the production conditions of a copper mine, it is proposed to adopt multistage machine station in series. The ventilation system of a copper mine is optimized by the control scheme of air flow transportation and regulation in parallel operation mode. Considering as a whole the amount of air carried by the stations at all levels, as well as the resistance of ventilation along the path to be overcome, the fan model of the stations at all levels is selected, and the air volume is distributed through the application of the ventilation network computer solution software to the proposed multi-stage station plan. The wind pressure loss, power consumption and other parameters are calculated and analyzed, and the optimized retrofit scheme of the ventilation system of the copper mine is obtained. The scheme can effectively solve the problem of insufficient air demand in the ventilation system of the copper mine. Because there is no systematic ventilation environment in the mine, the problem of the natural air flow in the mine is formed. According to the lower mining plan, the corresponding ventilation system construction plan is studied and put forward, when the mine is in deep mining, According to the actual situation, it can continue to play a role and meet the long-term production needs. The ventilation of stope is simulated and analyzed by Fluent, and the distribution of wind flow field in the selected auxiliary fan working point is simulated. A comprehensive, scientific and practical optimization index system of mine ventilation system is established. The evaluation model of ventilation system based on BP neural network is established, and the feasibility of the model is proved by testing. The innovation of this paper lies in the application of Fluent software in ventilation simulation. Through the ventilation simulation of stope, the wind flow field in the stope is analyzed. The calculated results and the optimized results are complementary and mutually verified.
【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】：TD862.1;TD724

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