过滤强化用极性硅盐粉末的鉴别优选

doi:10.12068/j.issn.1005-3026.2020.03.023

东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (3): 430-437.DOI: 10.12068/j.issn.1005-3026.2020.03.023

过滤强化用极性硅盐粉末的鉴别优选

郑佳文，赫伟东，郭颖赫，柳静献

(东北大学资源与土木工程学院，辽宁沈阳110819)

收稿日期:2019-03-05 修回日期:2019-03-05 出版日期:2020-03-15 发布日期:2020-04-10
通讯作者: 郑佳文
作者简介:郑佳文(1994-)，女，辽宁沈阳人，东北大学博士研究生；柳静献(1966-)，男，河北元氏人，东北大学教授，博士生导师.
基金资助:
国家“十三五”重点专项(2017YFC0211801，2016YFC0801704，2016YFC0203701，2016YFC0801605).

Identification of Optimal Tourmaline Powders for Filtration Enhancement

ZHENG Jia-wen， HE Wei-dong， GUO Ying-he， LIU Jing-xian

School of Resources & Civil Engineering，Northeastern University， Shenyang 110819，China.

Received:2019-03-05 Revised:2019-03-05 Online:2020-03-15 Published:2020-04-10
Contact: LIU Jing-xian
About author:-
Supported by:
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摘要/Abstract

摘要： 研究了来自新疆、河北、桂林三个产地的不同粒度提纯后极性硅盐粉末样品对空气过滤材料过滤性能影响，采用压电实验、热释电实验对各种极性硅盐粉末样品进行电极性表征鉴别优选.结果表明:桂林粒度0.074mm提纯品位最高的极性硅盐粉末自发极化性能最佳；将3种极性硅盐最高纯度的粉末分别附着滤料表面进行全尘效率实验，桂林粒度0.074mm提纯品位最高极性硅盐粉末对过滤效率提升最显著；采用Rietveld方法对极性硅盐粉末XRD图谱精修得到晶体结构，通过计算固有电偶极矩证明了极性硅盐自发极化产生的静电吸附作用是其提高滤料过滤性能的主要原因.

关键词: 极性硅盐, 自发极化, 过滤效率, 电偶极矩, 鉴别优选

Abstract: The effects of different particle size purified tourmaline powder samples on the filtration performance of air filter materials from Xinjiang， Hebei and Guilin were studied. Electrode performance of various tourmaline powder samples was carried out by piezoelectric experiments and pyroelectric experiments to identify the preferred polarization characterization. The results show that the electrode of the 0.074mm pure grade tourmaline has the best performance. The highest grade of three tourmaline powders is attached to the filter surface for the whole dust efficiency experiment. The 0.074mm pure grade of tourmaline in Guilin has the highest filtration efficiency. The most significant improvement is obtained. Using the Rietveld method， the XRD pattern of tourmaline powder is refined to obtain the crystal structure. The calculation of the intrinsic electric dipole moment proves that the electrostatic adsorption caused by the spontaneous polarization of tourmaline is the main reason for improving the filtration performance of the filter material.

Key words: tourmaline, spontaneous polarization, filtration efficiency, electric dipole moment, identification

中图分类号:

F272.3

郑佳文，赫伟东，郭颖赫，柳静献. 过滤强化用极性硅盐粉末的鉴别优选[J]. 东北大学学报:自然科学版, 2020, 41(3): 430-437.

ZHENG Jia-wen， HE Wei-dong， GUO Ying-he， LIU Jing-xian. Identification of Optimal Tourmaline Powders for Filtration Enhancement[J]. Journal of Northeastern University Natural Science, 2020, 41(3): 430-437.

参考文献

[1]Song S H， Kang M.Decomposition of 2-chlorophenol using a tourmaline photocatalytic system［J］.Journal of Industrial and Engineering Chemistry，2008，14(6):785-791.
[2]Rakesh Y R，Xu H F.Incorporating strong polarity minerals of tourmaline with semiconductor titania to improve the photosplitting of water［J］.Journal of Physical Chemistry C，2008，112(2):532-539.
[3]Yeh J T，Hsiung H H，Wei W，et al.Negative air ion releasing properties of tourmaline/bamboo charcoal compounds containing ethylene propylene diene terpolymer/polypropylene composites［J］.Journal of Applied Polymer Science，2009，113(2):1097-1110.
[4]Dietrich R V.The tourmaline group ［M］.New York:Van Nostrand Reinhold Company，1985:54-57.
[5]Leonard D T.Antibacterial and superhydrophilic electrospunpolyurethane nanocomposite fibers containing tourmaline nanopaticles ［J］.Chemical Engineering Journal，2012，197(14):41-48.
[6]Nakamura T，Kubo T.The tourmaline group crystals reaction with water ［J］.Ferroelectrics，1992，137(1):13-31.
[7]Lang S B.The history of pyroelectricity:from ancient Greece to space missions ［J］.Ferroelectrics，1999，230(1):99-108.
[8]Brewster D.Observation on the pyro-electricity in minerals ［J］.Edinburgh Journal of Science，1824，1(2):208-218.
[9]Donnay G.Structural mechanism of pyroelectricity in tourmaline ［J］.Acta Crystal Lographica，1977，33(6):927-932.
[10]Hartley N P ，Squire P T ，Putley E H .A new method of measuring pyroelectric coefficients［J］.Journal of Physics E:Scientific Instruments，1972，5(8):787-789.
[11]Hawkins K D，lan MacKinnon D R，Schneeberger H.Influence of chemistry on the pyroelectric effect in tourmaline［J］.American Mineralogist，1995，80(5/6):491-501.
[15]关守平，房少纯.一种新型的区间-粒子群优化算法［J］.东北大学学报(自然科学版)，2012，33(10):1381-1384.(Guan Shou-ping，Fang Shao-chun.A new interval particle swarm optimization algorithm［J］.Journal of Northeastern University(Natural Science)，2012，33(10):1381-1384.)(上接第401页)图7不同背压下e，p_c 与喷嘴出口位置s的关系Fig.7Relationship among e，p_c and s under different p_b和5kPa时e，p_c与喷嘴出口位置s的关系.与上述分析方法相同，当s从-60mm增大到20mm时，e增大，喷射泵抗背压能力增强.3结语随着喷射泵几何参数喉部直径d或混合室角度θ的减小或喷嘴出口位置s的增大，都会导致喷射器喉部出口截面单位体积流体动能e增大、蒸汽喷射泵抗背压能力增强.当d，θ及s变化时，e可作为评估蒸汽喷射泵抗背压能力的标准.

过滤强化用极性硅盐粉末的鉴别优选

Identification of Optimal Tourmaline Powders for Filtration Enhancement

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