【摘要】：在深井礦山開采中,通風(fēng)系統(tǒng)作為井下生產(chǎn)的安全保障,對(duì)礦山安全十分重要。隨著我國(guó)對(duì)礦石需求量的迅猛增長(zhǎng)以及礦山開采年限、礦山開采深度的增加,在礦井通風(fēng)系統(tǒng)方面,面臨兩個(gè)問題：復(fù)雜通風(fēng)網(wǎng)絡(luò)的解算優(yōu)化以及如何經(jīng)濟(jì)合理的向深部礦井送風(fēng)。本文以紅透山銅鋅礦為例,詳細(xì)研究了問題的解決方案。本文在對(duì)國(guó)內(nèi)外相關(guān)文獻(xiàn)分析的基礎(chǔ)上,研究了礦井通風(fēng)理論,基于Ventsim三維通風(fēng)仿真軟件,建立了紅透山礦超過8700條、120kmm長(zhǎng)巷道的大型通風(fēng)系統(tǒng)三維模型,對(duì)礦山的通風(fēng)現(xiàn)狀進(jìn)行了模擬。在制定通風(fēng)系統(tǒng)測(cè)試方案基礎(chǔ)上,對(duì)井下不同風(fēng)機(jī)開啟狀態(tài)時(shí)的通風(fēng)現(xiàn)狀進(jìn)行測(cè)試和數(shù)據(jù)分析,發(fā)現(xiàn)淺部礦井存在一定的漏風(fēng),需要加強(qiáng)密閉。另外,模擬結(jié)果與實(shí)測(cè)結(jié)果偏差小于6%,證明所建模型的準(zhǔn)確性；進(jìn)而提出了深井通風(fēng)系統(tǒng)改進(jìn)的可行性方案,通過解算確定了在東側(cè)新建風(fēng)井的最優(yōu)方案,其通風(fēng)效率高達(dá)到71.5%。紅透山礦開采已達(dá)到1300m,針對(duì)這種深部開采,在回風(fēng)氣流有害氣體凈化實(shí)驗(yàn)成果基礎(chǔ)上,采用可控循環(huán)風(fēng)技術(shù)用于紅透山,解決深部礦井的節(jié)能送風(fēng)問題。通過對(duì)紅透山氣流質(zhì)量監(jiān)測(cè)表明,混合入風(fēng)的流質(zhì)量完全符合國(guó)家有關(guān)規(guī)定,其節(jié)約能耗32.1%。Ventsim三維仿真模擬系統(tǒng)對(duì)礦井通風(fēng)網(wǎng)絡(luò)的解算及優(yōu)化起到了至關(guān)重要的作用,為通風(fēng)管理人員及決策人員提供了科學(xué)可靠的手段；可控循環(huán)風(fēng)技術(shù)對(duì)深部礦井有良好的節(jié)能效果,它們都有很好的應(yīng)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.
【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TD724

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本文編號(hào)：2132003