發(fā)布時(shí)間：2018-03-20 12:07

  本文選題：多級(jí)機(jī)站　切入點(diǎn)：通風(fēng)網(wǎng)路　出處：《昆明理工大學(xué)》2013年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：本文收集了通風(fēng)系統(tǒng)優(yōu)化所必須的基礎(chǔ)性資料,對(duì)其進(jìn)行分析、整理、歸納,并根據(jù)目前國(guó)內(nèi)外風(fēng)流調(diào)控技術(shù)及某銅礦生產(chǎn)條件,擬定采用多級(jí)機(jī)站串聯(lián)、并聯(lián)工作模式的風(fēng)流輸送與調(diào)節(jié)控制方案,對(duì)某銅礦通風(fēng)系統(tǒng)優(yōu)化研究。 統(tǒng)籌考慮各級(jí)機(jī)站負(fù)責(zé)輸送的風(fēng)量,以及所要克服的沿程通風(fēng)阻力,選擇了各級(jí)機(jī)站風(fēng)機(jī)型號(hào);通過(guò)對(duì)擬定的多級(jí)機(jī)站方案應(yīng)用通風(fēng)網(wǎng)路計(jì)算機(jī)解算軟件對(duì)風(fēng)量分配、風(fēng)壓損失、動(dòng)力消耗等參數(shù)進(jìn)行了解算分析,得出了該銅礦的通風(fēng)系統(tǒng)的優(yōu)化改造方案,方案能有效的解決該銅礦通風(fēng)系統(tǒng)存在的需風(fēng)量不夠,因沒(méi)有形成系統(tǒng)的通風(fēng)環(huán)境而礦井中形成忽上忽下、忽大忽小的自然風(fēng)流的問(wèn)題；根據(jù)下部開(kāi)采方案,研究提出相應(yīng)的通風(fēng)系統(tǒng)建設(shè)規(guī)劃,在轉(zhuǎn)入深部采礦時(shí),只需根據(jù)實(shí)際情況稍加調(diào)整就能繼續(xù)發(fā)揮作用,滿足了遠(yuǎn)期的生產(chǎn)需要；用Fluent對(duì)采場(chǎng)通風(fēng)進(jìn)行了模擬分析,在選擇的采場(chǎng)輔扇工況點(diǎn)情況下,模擬采場(chǎng)內(nèi)的風(fēng)流場(chǎng)分布情況；建立了一套的比較全面、科學(xué)、符合實(shí)際的礦井通風(fēng)系統(tǒng)方案優(yōu)化指標(biāo)體系,基于BP神經(jīng)網(wǎng)絡(luò)建立了通風(fēng)系統(tǒng)評(píng)價(jià)模型,通過(guò)檢驗(yàn)證明了模型的可行性。 本文的創(chuàng)新點(diǎn)在于將Fluent軟件運(yùn)用于通風(fēng)模擬,通過(guò)對(duì)采場(chǎng)的通風(fēng)模擬,分析采場(chǎng)內(nèi)風(fēng)流場(chǎng)情況,所模擬出的計(jì)算結(jié)果與優(yōu)化結(jié)果相互補(bǔ)充、相互驗(yàn)證。
[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.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TD862.1;TD724

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本文編號(hào)：1639015