濕式密集纖維柵對(duì)礦山粉塵的過(guò)濾效率
發(fā)布時(shí)間:2018-03-12 21:05
本文選題:濕式密集纖維柵 切入點(diǎn):過(guò)濾凈化效率 出處:《環(huán)境工程學(xué)報(bào)》2017年05期 論文類(lèi)型:期刊論文
【摘要】:金屬礦山粉塵凈化一直是深井空氣環(huán)境治理的技術(shù)難題,為解決單層纖維柵并列插板結(jié)構(gòu)體積大、孔隙率高等問(wèn)題,在毛細(xì)管潤(rùn)濕效應(yīng)產(chǎn)生水膜的凈化理論基礎(chǔ)上,建立了濕式密集纖維柵凈化機(jī)制的物理模型,利用等效假設(shè)推出了濕式密集纖維柵的過(guò)濾凈化效率式。采用正交實(shí)驗(yàn)分析了各因素對(duì)密集纖維柵凈化效率的影響。根據(jù)分級(jí)凈化效率的實(shí)驗(yàn)結(jié)果對(duì)理論效率公式進(jìn)行了量綱一的修正,應(yīng)用濕式密集柵纖維層過(guò)濾實(shí)驗(yàn)系統(tǒng)進(jìn)行粉塵凈化實(shí)驗(yàn),實(shí)驗(yàn)結(jié)果表明:濕式密集纖維柵在實(shí)驗(yàn)最優(yōu)組合情況下對(duì)粒徑小于5μm的呼吸性粉塵凈化效率可達(dá)92.36%,具有良好的實(shí)際應(yīng)用效果。
[Abstract]:Dust purification in metal mines has always been a technical problem in the treatment of air environment in deep wells. In order to solve the problems of large volume and high porosity of single-layer fiber grid parallel inserts, the purification theory of water film produced by capillary wetting effect is based on the theory that water film is produced by capillary wetting effect. The physical model of wet dense fiber grating purification mechanism was established. The filtration efficiency formula of wet dense fiber grating is deduced by using the equivalent hypothesis. The influence of various factors on the purification efficiency of dense fiber grating is analyzed by orthogonal experiment. The theoretical efficiency is recognized according to the experimental results of graded purification efficiency. The formula is modified by dimensionality one, The dust purification experiment was carried out by using the wet dense gate fiber filter system. The experimental results show that the wet dense fiber grating has a good practical effect on the purification efficiency of respiratory dust with particle size less than 5 渭 m under the optimal combination of experiments.
【作者單位】: 青島理工大學(xué)汽車(chē)與交通學(xué)院;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(51274127)
【分類(lèi)號(hào)】:TD714.4
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本文編號(hào):1603286
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