·1550 工程科学学报,第43卷,第11期 Diameter of dust Pressures of ceramic particles/(10-7 m) membrane/(105 Pa) ☐6.884 3.0420 5.263 2.5240 3.842 2.0070 2.421 1.4890 .000 0.9708 (b) Diameter of dust Pressures of ceramic particles/(10-7m) membrane/(105 Pa) 6.884 1.021 5.263 1.019 3.842 1.017 2.421 1.015 1.000 1.013 (c) 图12不同时间下沉积尘粒和压力分布图.(a)0.03s:(b)0.035s(c)0.095s Fig.12 Distribution of dust particles and pressure under different time:(a)0.003 s,(b)0.035 s,(c)0.095 s I m-min [3]Guo Y W,Wang W,Qiao W,et al.Characterization of heavy (2)在反吹清洗时,曳力、热泳力和压力梯度 metals in fly ash from hazardous waste incinerators.J Univ Sci 力是膜内沉积颗粒脱附的推动力,随反吹压力的 Technol Beijing,2006,28(1):17 (郭玉文,王伟,乔玮,等危险废物焚烧飞灰中重金属污染特性 升高烟尘脱附率增加.在1mmin,0.1MPa的过 北京科技大学学报,2006,28(1):17) 滤条件下,0.3MPa下反吹0.02s可以将沉积于陶 [4]Zhang L,Pang XL,Gao K W.Preparation of porous carbides by 瓷膜孔道内的烟尘吹出,可实现孔隙率为40%,厚 reactive sintering.Chin J Eng,2015,37(6):751 度为120m陶瓷膜迅速重生.增加反吹压力和延 (张雷,庞晓露,高克玮.利用反应烧结法制备多孔碳化物陶瓷 长反吹时间对于尘粒的脱附效果无明显改善 工程科学学报,2015,37(6):751) (3)采用脉冲反吹内径40mm,外径60mm, [5]Lupion M.Ortiz F J G.Navarrete B.et al.Assessment 长1.5m的陶瓷膜管时,尘粒脱附时间在13s,脉 performance of high-temperature filtering elements.Fuel,2010, 89(4):848 冲反吹时间间隔应高于452s. [6]Heidenreich S.Hot gas filtration-A review.Fuel,2013,104:83 [7]Wang Y M,Xue YX,LiY,et al.Preparation of porous cordierite 参考文献 ceramic support materials for high-temperature dust gas.J Chin [1]WHO.WHO releases country estimates on air pollution exposure Ceram Soc,2005,33(10):1262 and health impact [EB/OL].World Health Organization (2016-9- (王耀明,薛友祥,李勇,等高温烟气净化用多孔革青石陶瓷支 27)[2020-04-29].https://www.who.int/news/item/27-09-2016-who- 撑体材料的研制.硅酸盐学报,2005,33(10):1262) releases-country-estimates-on-air-pollution-exposure-and-health- [8]He K,Wang L.A review of energy use and energy-efficient impact technologies for the iron and steel industry.Renewable Sustainable [2]Maher B A,Ahmed I A M,Karloukovski V,et al.Magnetite Energy Rev,2017,70:1022 pollution nanoparticles in the human brain.Proc Natl Acad Sci [9]Xiong R,Sun G C,Si KK,et al.Pressure drop prediction of US4,2016,113(39:10797 ceramic membrane filters at high temperature.Powder Technol,1 m·min−1 . (2)在反吹清洗时,曳力、热泳力和压力梯度 力是膜内沉积颗粒脱附的推动力,随反吹压力的 升高烟尘脱附率增加. 在 1 m·min−1 ,0.1 MPa 的过 滤条件下,0.3 MPa 下反吹 0.02 s 可以将沉积于陶 瓷膜孔道内的烟尘吹出,可实现孔隙率为 40%,厚 度为 120 μm 陶瓷膜迅速重生. 增加反吹压力和延 长反吹时间对于尘粒的脱附效果无明显改善. ( 3)采用脉冲反吹内径 40 mm,外径 60 mm, 长 1.5 m 的陶瓷膜管时,尘粒脱附时间在 13 s,脉 冲反吹时间间隔应高于 452 s. 参 考 文 献 WHO. WHO releases country estimates on air pollution exposure and health impact [EB/OL]. World Health Organization (2016-9- 27) [2020-04-29].https://www.who.int/news/item/27-09-2016-whoreleases-country-estimates-on-air-pollution-exposure-and-healthimpact [1] Maher B A, Ahmed I A M, Karloukovski V, et al. Magnetite pollution nanoparticles in the human brain. Proc Natl Acad Sci USA, 2016, 113(39): 10797 [2] Guo Y W, Wang W, Qiao W, et al. Characterization of heavy metals in fly ash from hazardous waste incinerators. J Univ Sci Technol Beijing, 2006, 28(1): 17 (郭玉文, 王伟, 乔玮, 等. 危险废物焚烧飞灰中重金属污染特性. 北京科技大学学报, 2006, 28(1):17) [3] Zhang L, Pang X L, Gao K W. Preparation of porous carbides by reactive sintering. Chin J Eng, 2015, 37(6): 751 (张雷, 庞晓露, 高克玮. 利用反应烧结法制备多孔碳化物陶瓷. 工程科学学报, 2015, 37(6):751) [4] Lupion M, Ortiz F J G, Navarrete B, et al. Assessment performance of high-temperature filtering elements. Fuel, 2010, 89(4): 848 [5] [6] Heidenreich S. Hot gas filtration – A review. Fuel, 2013, 104: 83 Wang Y M, Xue Y X, Li Y, et al. Preparation of porous cordierite ceramic support materials for high-temperature dust gas. J Chin Ceram Soc, 2005, 33(10): 1262 (王耀明, 薛友祥, 李勇, 等. 高温烟气净化用多孔堇青石陶瓷支 撑体材料的研制. 硅酸盐学报, 2005, 33(10):1262) [7] He K, Wang L. A review of energy use and energy-efficient technologies for the iron and steel industry. Renewable Sustainable Energy Rev, 2017, 70: 1022 [8] Xiong R, Sun G C, Si K K, et al. Pressure drop prediction of ceramic membrane filters at high temperature. Powder Technol, [9] 6.884 5.263 3.842 2.421 1.000 Diameter of dust particles/(10−7 m) 3.0420 2.5240 2.0070 1.4890 0.9708 Pressures of ceramic membrane/(105 Pa) (b) 6.884 5.263 3.842 2.421 1.000 Diameter of dust particles/(10−7 m) 1.021 1.019 1.017 1.015 1.013 Pressures of ceramic membrane/(105 Pa) (c) 图 12 不同时间下沉积尘粒和压力分布图. (a)0.03 s;(b)0.035 s;(c)0.095 s Fig.12 Distribution of dust particles and pressure under different time: (a) 0.003 s, (b) 0.035 s, (c) 0.095 s · 1550 · 工程科学学报,第 43 卷,第 11 期