【摘要】：論文以貴州某磷礦一、某磷礦二磷礦為工程背景,通過對多個磷礦山井下通風(fēng)系統(tǒng)調(diào)查分析,針對其通風(fēng)存在的通風(fēng)阻力大、動力偏差大、與產(chǎn)能匹配性差、風(fēng)機(jī)效率低下等影響礦井通風(fēng)系統(tǒng)穩(wěn)定性問題,在現(xiàn)場大量數(shù)據(jù)采集與資料整理的基礎(chǔ)上,通過3D VS礦井通風(fēng)三維仿真模擬試驗,得出影響其礦井通風(fēng)系統(tǒng)穩(wěn)定性的相關(guān)指標(biāo)�；谀：龜�(shù)學(xué)與層次分析法理論,建立礦井通風(fēng)模糊評價數(shù)學(xué)模型,提出了評價礦井通風(fēng)系統(tǒng)穩(wěn)定性狀況的評判標(biāo)準(zhǔn)。在此基礎(chǔ)上,給出礦山實(shí)際工程中進(jìn)行通風(fēng)優(yōu)化的具體技術(shù)措施和建議。論文研究主要內(nèi)容如下:(1)通過對井下通風(fēng)網(wǎng)絡(luò)、井筒的位置、風(fēng)流方向、風(fēng)機(jī)的安裝情況、作業(yè)點(diǎn)風(fēng)質(zhì)及數(shù)量等調(diào)查測定,掌握了磷礦山井下通風(fēng)現(xiàn)狀;運(yùn)用3DVS礦井通風(fēng)三維模擬軟件對井下通風(fēng)情況進(jìn)行模擬,使模擬結(jié)果與井下實(shí)測結(jié)果基本符合,為下一步技術(shù)措施優(yōu)化提供可靠性。(2)論文對多個磷礦山通風(fēng)系統(tǒng)進(jìn)行了全面了解和現(xiàn)場測定,評價分析了磷礦山通風(fēng)系統(tǒng)。結(jié)合多個礦山通風(fēng)系統(tǒng)存在的問題,進(jìn)一步分析得出磷礦井通風(fēng)系統(tǒng)存在風(fēng)機(jī)與風(fēng)網(wǎng)不匹配、局部風(fēng)量調(diào)節(jié)困難、通風(fēng)阻力大等共性問題,使磷礦山通風(fēng)系統(tǒng)優(yōu)化具有針對性。(3)論文基于模糊數(shù)學(xué)法和層次分析法理論,建立了模糊數(shù)學(xué)綜合評價模型,并綜合確定了各級評價因素權(quán)重,構(gòu)造模糊數(shù)學(xué)綜合評價判斷矩陣;通過對擬定的優(yōu)化措施進(jìn)行技術(shù)經(jīng)濟(jì)比較分析,初步確定了優(yōu)化備選的優(yōu)化措施,運(yùn)用模糊數(shù)學(xué)評價法對備選措施進(jìn)行綜合評價,確定了最優(yōu)實(shí)施措施。(4)論文對最終優(yōu)選的技術(shù)措施通風(fēng)效果進(jìn)行比較分析,其中某磷礦一優(yōu)選的技術(shù)措施有效的解決了1020m、1035m深部進(jìn)風(fēng),增設(shè)的空氣幕可隨作業(yè)面點(diǎn)變更而移動位置,靈活性強(qiáng);某磷礦二優(yōu)選的技術(shù)措施解決了盤區(qū)通風(fēng)問題,各分層風(fēng)量調(diào)節(jié)效果較好。說明通過增設(shè)礦用空氣幕可以有效地解決磷礦山通風(fēng)阻力大,局部風(fēng)量調(diào)節(jié)困難等問題。
[Abstract]:Based on the engineering background of No. 1 and No. 2 phosphate rock in a certain phosphate mine in Guizhou province, through the investigation and analysis of underground ventilation system in several phosphate mines, the paper aims at the existence of large ventilation resistance, large dynamic deviation and poor matching with productivity. The low efficiency of fan affects the stability of mine ventilation system. On the basis of a large amount of data collection and data collation on the spot, through 3D vs mine ventilation 3D simulation test, the relevant indexes affecting the stability of mine ventilation system are obtained. Based on the theory of fuzzy mathematics and analytic hierarchy process (AHP), the mathematical model of mine ventilation fuzzy evaluation is established, and the evaluation criteria for the stability of mine ventilation system are put forward. On this basis, the concrete technical measures and suggestions for ventilation optimization in practical mine engineering are given. The main contents of this paper are as follows: (1) through the investigation and determination of underground ventilation network, wellbore location, air flow direction, installation of fan, air quality and quantity of operating points, the present situation of downhole ventilation in phosphate mine has been grasped. In this paper, 3DVS software is used to simulate the underground ventilation, and the simulation results are in good agreement with the measured results. It provides reliability for further technical measures optimization. (2) the paper has carried on the comprehensive understanding and the spot determination to the multiple phosphate rock mountain ventilation system, has evaluated and analyzed the phosphate rock mountain ventilation system. Combined with the problems existing in many mine ventilation systems, it is further analyzed that there are some common problems in the ventilation system of phosphorus mine, such as the mismatch between fan and air network, the difficulty of local air volume regulation, and the large ventilation resistance, etc. The optimization of ventilation system of phosphate rock mountain is targeted. (3) based on the fuzzy mathematics method and the analytic hierarchy process theory, the comprehensive evaluation model of fuzzy mathematics is established, and the weight of evaluation factors at all levels is determined synthetically. The comprehensive evaluation judgment matrix of fuzzy mathematics is constructed, the optimization measures are preliminarily determined by comparing and analyzing the technical and economic aspects of the proposed optimization measures, and the comprehensive evaluation of the alternative measures is carried out by using the fuzzy mathematics evaluation method. The optimal implementation measures are determined. (4) the paper compares and analyzes the ventilation effect of the final optimal technical measures, among which the technical measures of one phosphate mine-optimal separation effectively solve the 1020mg 1035m deep air intake. The additional air curtain can move the position with the change of the working surface, and the flexibility is strong, and the technical measures of the secondary optimum separation of a phosphate mine solve the ventilation problem in the disk area, and the effect of the air volume regulation in each layer is better. It is shown that the problems of large ventilation resistance and difficulty in adjusting local air volume can be effectively solved by adding mine air curtain.
【學(xué)位授予單位】：江西理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD724

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