安全工程專業(yè)英語(yǔ)翻譯-免費(fèi)閱讀
【正文】 因?yàn)轱L(fēng)流通過采空區(qū)，所以達(dá)到 DPM 的規(guī)定就更加的困難和昂貴，多數(shù)礦將必須修改他們的操作規(guī)程。 防止柴油泄露 Bear 先生前面說過，減少有害的柴油泄露是改進(jìn)地下工作環(huán)境的另一個(gè)重要方面。 當(dāng)主通風(fēng)系統(tǒng)滿足不了通風(fēng)需要時(shí)，局部通風(fēng)機(jī)被用來彌補(bǔ)這種不足。風(fēng)量可以通過調(diào)整葉片的角度來調(diào)整，并且調(diào)整電動(dòng)機(jī)的轉(zhuǎn)速也可以調(diào)整風(fēng)機(jī)的風(fēng)量和風(fēng)壓。 除這些，還包括對(duì)于采礦過程中產(chǎn)生的大量的 CO，亞硝煙和粉塵顆粒。我們每年都要做很多工作來維護(hù)和改進(jìn)工作空間的風(fēng)流條件。throughflow39。 “通風(fēng)在煤礦是一個(gè)根本前提，這或許比從前更突出。在煤礦上，它由井筒之間的壓力差造成。輔助通風(fēng)系統(tǒng)的主要不便之處在于生產(chǎn)過程中需要不斷的向前延伸。 循環(huán)控制 煤礦通風(fēng)系統(tǒng)所面臨的一個(gè)特殊的問題是工作面通常漸漸遠(yuǎn)離新鮮空氣的來源處，這就決定了 通風(fēng)系統(tǒng)也要連續(xù)的發(fā)生變化。 61%的數(shù)據(jù)顯示，調(diào)查中共同消耗 4,786 個(gè)柴油單位 (總計(jì)478,200kW)約合柴油 68MI/y。 。另一關(guān)鍵是選擇對(duì)柴油，并且人民相信燃料電池可 能能解決這個(gè)問題。 另外，局部通風(fēng)機(jī)允許架設(shè)很長(zhǎng)的通風(fēng)路線。這類風(fēng)機(jī)占用空間小，低轉(zhuǎn)速并且是相對(duì)較安靜。因此，各種生產(chǎn)狀況在最初都要考慮到。 具體的環(huán)境問題如地溫、自燃和粉塵等使通風(fēng)系統(tǒng)進(jìn)一步復(fù)雜化。 1 Breath of fresh air With no aspect of underground mine safety more fundamental than proper ventilation, various modern systems are being used to ensure airflow is safe for workers BY BREE FREEMAN When it es to underground mine workings, few things are more important than adequate ventilation. Every year enormous efforts are made to maintain and improve airflow to working areas. This is to dilute emissions below statutory limits, render the air harmless, carry away hazardous contaminants and provide necessary levels of oxygen for the miners. As a result, ventilation systems form a crucial pan of the design of any mine, the layout of which is determined by the orebody geology, legislation, available manpower, mining methods and the equipment used. Specific environmental issues such as virgin rock temperatures, spontaneous bustion and dust control further plicate theoretical ventilation systems. Moreover, whatever system is eventually planned will inevitably suffer from imperfect implementation and control because of the daytoday plexities of the extraction operation. “Ventilation in the modem mine is an essential prerequisite, perhaps even more so than in the from the obvious biological aspect of preventing depletion of
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