|
|
|
| Study on the purification characteristics of high-temperature smoke utilizing magnetic basalt filter material in the iron and steel industry |
| ZHANG Li-an1, DU Chuan-mei1, XU Deng-ke1, YANG Bing-wen2, DIAO Yong-fa2, SHEN Heng-gen2 |
1. School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China;
2. School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China |
|
|
|
|
Abstract Given the physical property that the fugitive particles contained in the high-temperature smoke emitted by the iron and steel industry were easily magnetized, the concept and preparation method of new magnetic basalt fibers were proposed. A detailed analysis was conducted on the tensile properties, acid and alkali resistance, and the high-temperature stability of the fibers synthesized through the in-situ polymerization method. At the same time, the magnetic basalt filter material was formed utilizing the needle punching process, and its applicability was verified by testing its pore size distribution, mechanical strength, acid and alkali resistance, and high-temperature stability. The results showed that the in-situ polymerization method reduced the strength of the original basalt fibers by 4.6%. The magnetic basalt fibers exhibited acid but not alkali resistance, and their maximum operation temperature was 150°C. The magnetic basalt filter material exhibited a more concentrated pore size distribution with a smaller average pore size than the original basalt filter material. Additionly, the original and the magnetic basalt filter material were resistant to acids but not alkalies, and their maximum operation temperature was 250°C. When the filtration velocity was set as 5m/min, the dust concentration reached 50mg/m3, the filtration efficiency of the magnetic basalt filter material was up to 43.67% higher than that of the original basalt filter material. Furthermore, the pressure drop increase caused by the surface loading process of the filter material could be ignored.
|
|
Received: 09 May 2024
|
|
|
|
|
|
[1] Sun J C, Na H M, Yan T Y, et al. A comprehensive assessment on material, exergy and emission networks for the integrated iron and steel industry [J]. Energy, 2021,235:121429.
[2] Lin B Q, Wu R X. Designing energy policy based on dynamic change in energy and carbon dioxide emission performance of China's iron and steel industry [J]. Journal of Cleaner Production, 2020,256(1): 120412.
[3] Li Q F, Wen B J, Wang G S, et al. Study on calculation of carbon emission factors and embodied carbon emissions of iron-containing commodities in international trade of China [J]. Journal of Cleaner Production, 2018,191:119-126.
[4] Feng C, Huang J B, Wang M. Analysis of green total-factor productivity in China's regional metal industry: A meta-frontier approach [J]. Resources Policy, 2018,58:219-229.
[5] Wang W, Tang D, Liu H. Research on current pollution status and pollution characteristics of PM2.5 in china [J]. Research of Environmental Sciences, 2000,13(1):1-4.
[6] Zhao C, Pu W Y, Niu M Y, et al. Respiratory exposure to PM2.5 soluble extract induced chronic lung injury by disturbing the phagocytosis function of macrophage [J]. Environmental Science and Pollution Research, 2022,29(10):13983-13997.
[7] Hill W, Lim E L, Weeden C E, et al. Lung adenocarcinoma promotion by air pollutants [J]. Nature, 2023,616:159-167.
[8] Zhou G Y, Low Z X, Feng S S, et al. Effect of relative humidity and dust moisture content on filtration performance of bag filter [J]. Separation and Purification Technology, 2023,308:122952.
[9] Choi H Y, Park Y G, Ha M Y. Numerical simulation of the wavy collecting plate effects on the performance of an electrostatic precipitator [J]. Powder Technology, 2021,382:232-243.
[10] Wang L X, Bai B F, Chen P, et al. A study on the characteristics and geometric optimization of a cyclone filter [J]. Separation and Purification Technology, 2024,345:127313.
[11] Ye M M, Liang M, Qian F P, et al. The numerical simulation of gas-liquid two phase flow in annular gap venturi of converter wet dust removal [J]. Materials Science and Engineering, 2020,730:012051.
[12] Hosseini S A, Tafreshi H V. On the importance of fibers' crosssectional shape for air filters operating in the slip flow regime [J]. Powder Technology, 2011,212(3):425-431.
[13] Zhang X, Ma J Y, Nie X Y, et al. Establishment of air fiber filtration model based on fractal theory and analysis of filtration performances [J]. Materials Today Communications, 2023,34:105301.
[14] Dong M, Li J Y, Shang Y, et al. Numerical investigation on deposition process of submicron particles in collision with a single cylindrical fiber [J]. Journal of Aerosol Science, 2019,129:1-15.
[15] Zhou J W, Zhang L, Zhang B, et al. Study on filtration performance of elliptical fiber with different arrangements [J]. Journal of Engineered Fibers and Fabrics, 2020,15:1-11.
[16] Li W, Shen S N, Li H. Study and optimization of the filtration performance of multi-fiber filter [J]. Advanced Powder Technology, 2016,27(2):638-645.
[17] Danish M, Yahya S M, Taqvy S A A. et al. Modelling and optimization study to improve the filtration performance of fibrous filter [J]. Chemosphere, 2023,314:137667.
[18] Liang C G, Li H, Hao B, et al. Optimization on the performance of fibrous filter through computational fluid dynamic simulation coupled with response surface methodology [J]. Chemical Engineering Science, 2023,280:119070.
[19] Shu Z Y, Qian F P, Fang C, et al. Numerical simulation of particle spatial distribution and filtration characteristic in the pleated filter media using OpenFOAM [J]. Indoor and Built Environment, 2020, 30(8):1159-1172.
[20] Cao B W, Wang S L, Dong W, et al. Investigation of the filtration performance for fibrous media: Coupling of a semi-analytical model with CFD on Voronoi-based microstructure [J]. Separation and Purification Technology, 2020,251:117364.
[21] 陈昌江,陆振乾,杨加左.耐高温除尘滤料的研究进展[J]. 纺织科技进展, 2019,(1):1-3. Chen C J, Lu Z Q, Yang J Z. Research progress of high temperature resistant dust-removal filter media [J]. Progress in Textile Science & Technology, 2019,(1):1-3.
[22] 舒瑞,陈明刚,李永光,等.热蠕变性对除尘滤袋PTFE缝线强力的影响[J]. 安全与环境学报, 2017,17(5):1805-1810. Shu R, Chen M G, Li Y G, et al. Effect of the thermal creep on the strength of the PTFE suture [J]. Journal of Safety and Environment, 2017,17(5):1805-1810.
[23] 刘侃,赵毅.高温除尘无机滤料国内外进展综述[J]. 环境工程, 2017,35(6):69-73. Liu K, Zhao Y. Review of inorganic filtration media for hot gas dedusting [J]. Environmental Engineering, 2017,35(6):69-73.
[24] Huang H K, Zheng C H, Zhao H B. Numerical investigation on non-steady-state filtration of elliptical fibers for submicron particles in the "Greenfield gap" range [J]. Journal of Aerosol Science, 2017, 114:263-275.
[25] Kadarkarainadar M M, Mariappan G. Investigation of fiber-based bag filter coated with metal oxides for dust adsorption [J]. Fibers, 2023, 11(1):1-11.
[26] Shim E, Eom H, Kim Y. Fabrication of a carbon/polytetra fluoroethylene nanoparticle-coated antistatic bag filter using airassisted electrospraying [J]. Advanced Powder Technology, 2022, 33(8):103706.
[27] 张俪安,刁永发,庄加玮,等.钢铁行业磁性纤维捕集非球形粉尘动力学研究[J]. 中国环境科学, 2020,40(4):1477-1485. Zhang L A, Diao Y F, Zhuang J W, et al. Study on the dynamic of non-spherical particles captured by magnetic fibers in steel industry [J]. China Environmental Science, 2020,40(4):1477-1485.
[28] Zhou F S, Diao Y F, Wang R G, et al. Experimental study on PM2.5 removal by magnetic polyimide loaded with cobalt ferrate [J]. Energy and Built Environment, 2020,1(3):404-409.
[29] ASTM D 3379-1975 Standard test method for tensile strength and Young’s Modulus for high-modulus single-filament materials [S].
[30] HJ/T 324-2006环境保护产品技术要求袋式除尘器用滤料[S]. HJ/T 324-2006 Specifications for environmental protection product Fabric for bag house [S]. |
|
|
|
