本文選題：系統(tǒng)優(yōu)化 + MIVENA　； 參考：《遼寧工程技術(shù)大學(xué)》2014年碩士論文

【摘要】：礦井通風(fēng)系統(tǒng)計(jì)算與模擬是對礦井通風(fēng)系統(tǒng)進(jìn)行理論分析,找出問題、做出評價(jià),進(jìn)而提出解決辦法和改進(jìn)措施；對提高礦井的生產(chǎn)安全狀況有非常重要的意義。MIVENA是一款可以讓通風(fēng)工程師和研究者在礦井的動態(tài)生產(chǎn)過程中對礦井的風(fēng)流、氣候、溫度和濕度狀況進(jìn)行解算和分析的礦井通風(fēng)模擬系統(tǒng)[1]。在通風(fēng)系統(tǒng)中的風(fēng)流狀態(tài)模擬、風(fēng)量調(diào)節(jié)預(yù)測、井下氣候環(huán)境預(yù)測等方面都具有很高的實(shí)用價(jià)值。MIVENA系統(tǒng)在通風(fēng)安全理論基礎(chǔ)之上,建立了模擬預(yù)測模型,進(jìn)而以計(jì)算機(jī)為工具立足解決實(shí)際的礦井通風(fēng)問題。本文以隸屬于阜新礦業(yè)集團(tuán)的興阜煤礦為實(shí)例,以現(xiàn)場實(shí)測數(shù)據(jù)為基礎(chǔ),運(yùn)用MIVENA系統(tǒng)進(jìn)行精確模擬,解算出原孫家灣系統(tǒng)通風(fēng)阻力占總阻力的21%,并解算出興阜煤礦通風(fēng)系統(tǒng)中的大風(fēng)阻分支,主要位于新副井、-400總排風(fēng)道、-340大巷及二、三皮帶道等巷道,在通風(fēng)網(wǎng)絡(luò)解算分析的基礎(chǔ)上對興阜煤礦部分巷道實(shí)施示蹤氣體實(shí)驗(yàn),建立了示蹤氣體濃度擴(kuò)散數(shù)學(xué)模型并化簡求解,通過對實(shí)驗(yàn)結(jié)果與模擬計(jì)算結(jié)果對比分析,診斷出興阜煤礦的重點(diǎn)漏風(fēng)區(qū)域。針對以上三方面問題,分別從降阻調(diào)節(jié)、封堵漏風(fēng)及簡化孫家灣生產(chǎn)系統(tǒng)三方面入手,對興阜煤礦通風(fēng)系統(tǒng)進(jìn)行優(yōu)化改造,通過MIVENA系統(tǒng)對優(yōu)化后的通風(fēng)系統(tǒng)解算,興阜煤礦通風(fēng)系統(tǒng)較優(yōu)化前總風(fēng)量增加約10%,風(fēng)壓降低約25%,增加了該礦井的經(jīng)濟(jì)效益。
[Abstract]:The calculation and simulation of mine ventilation system is to carry on the theoretical analysis to mine ventilation system, find out the problem, make the evaluation, and then put forward the solution and the improvement measure; It is very important to improve mine production safety. Mivena is a kind of ventilation engineers and researchers in the mine dynamic production process of the mine air flow, climate, Mine ventilation simulation system for calculation and analysis of temperature and humidity conditions [1]. Mivena system has high practical value in air flow state simulation, air flow regulation prediction, downhole climate and environment prediction and so on. On the basis of ventilation safety theory, the simulation and prediction model is established. Then the computer as a tool to solve the actual mine ventilation problem. Taking Xingfu Coal Mine, which belongs to Fuxin Mining Group, as an example, based on the field measured data, the MIVENA system is used to carry out accurate simulation. The ventilation resistance of the original Sunjiawan system accounted for 21% of the total resistance, and the branch of the large wind resistance in the ventilation system of Xingfu Coal Mine was calculated. The branch of the ventilation system is mainly located in the new auxiliary shaft, Yi-400 main exhaust air passage, and the second and third belt roadways, etc. Based on the calculation and analysis of ventilation network, a tracer gas experiment was carried out on some roadways of Xingfu Coal Mine, and a mathematical model of tracer gas concentration diffusion was established and simplified. The results of experiment and simulation were compared and analyzed. The key air leakage area of Xingfu coal mine is diagnosed. In view of the above three problems, the ventilation system of Xingfu Coal Mine was optimized and reformed from the aspects of reducing resistance regulation, sealing air leakage and simplifying the production system of Sunjiawan. The optimized ventilation system was calculated by MIVENA system. The ventilation system of Xingfu coal mine increases about 10 percent of the total air volume and reduces the air pressure by about 25 percent, which increases the economic benefit of the mine.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TD724

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本文編號：1909536