关键词:玄武岩纤维;聚合物乳液;混凝土干缩性能 中图分类号:TU528.571文献标识码:A文章编号:1005-8249(2014)06-0030-04 Li Qi-yang', Wang Yong-jie²,Song Yun=xiang² (1.Henan Yuhuai Expressway CO.,LTD.,Xinyang 464400,China 2.Henan Transportation Research Institute CO.,LTD.Zhengzhou 450006,China) Abstract:he experments on drying shrinkage of concrete were tested,and the effct of bsalt fber and polymer mulion n the drying shrinkafete stdiederels wthbaltalangativefetnthedrinhinkaefreh meansthmrefbaltfehlarerringrinkaeatfrt gtWitheeplinhdrynghk rate of concrete shows a significant increasing trend.The effct of basalt fber and polymer emulsion mixed on the drying shrinkage of concrete is bettr thanbsalf beandplyemulsiouealoecpudedue obasal be and polemulionanla dualmodifcatiofet on drying shrinkage of conerete. Key Wordsbasalt fiber;polymer emulsion;drying shrinkage of concrete 干缩是水泥基类材料的特性,水泥混凝土的干缩在其中均匀掺人各种非连续的短切玄武岩纤维为增强 对其结构耐久性有极其不利的影响。
粉煤灰综合利用 2016 NO.1 FLYASHCOMPREHENSIVEUTILIZATION 试验与应用 物理强化对再生混凝土碳化性能影响 Influence of Physical and Chemical Enhancement ofReeycled CoarseAggregate on CarbonationProperty of Recycled Concrete 韩帅"2,李秋义',张修勤',莫建',孔哲 (1.青岛理工大学,山东青岛266033;2.济南轨道交通集团有限公司,山东济南250101) 性能的影响。
关键词:颗粒整形;物理强化;再生粗骨料混凝土;碳化深度 中图分类号:528.01文献标识码:A文章编号:1005-8249(2016)01-0016-05 Han Shuai'* ,Li Qiu-yi',Zhang Xiu-qin', Mo Jian',Kong Zhe (1.Qingdao University of Technology, Shandong Province Qingdao 266033; 2.Ji'nan Rail Transit Group Co., Ltd Shandong Province Jinan 250101) Abstract:Accing toRecyeled carenggregate inconcree(GBT251772010),thewaste cocreteissimply cshed tII lass reydcagatha lterdareatpysilsthnatr recycled re aregalein pysica srengtheninghe inene n carbnatin prrty ad sbstitution rate=050%,100%)f reld Coarseagregate of physical adhmicl hnmt torelanatalaegatewerestdieherelt shw thatcarononpety f recycledrearegatecretisSArecyeled carsereatecneeFAreyeld cseaggregate coeretNatrecnreeSBAred oarsaatWftbhrae carbonation depth of FA and SA recycled course aggregate concrete reduces. ydap uouqeo aauoaae o paa tuaoa peo pue posqd udys aued spuom ay 混凝土碳化会降低混凝土的碱度,破坏钢筋表面 种不同品质的再生粗骨料,测试物理强化再生粗骨料 钝化膜,加剧钢筋的锈蚀;同时也会加剧混凝土的收 不同品质和取代率对再生混凝土碳化性能影响。
78 当代化工研究 绿色化工 201609 燃煤电厂烟气超低排放中的脱硫设计优化探讨 ★王凤荣 (大唐环境产业集团股份有限公司北京100097) 摘要:锅炉烟气脱硫系统,应纳入电站主体系统一并优化,方能适应越来越严格的环保排放及设备安全运行及节能增效的要求。文章介 绍了流化风系统、工艺水系统、设备冷却水系统、低低温省煤器系统等系统优化具体方法。 键词:气脱硫系统优化 图分类号:T文献标 Discussion of Desulfurization Design Optimization for Exhaust Gas Ultra-low Emission of Coal-fired Power Plant Wang Fengrong Datang Environmental Industry Group Limited-liability Company ,Beijing ,100097 ) Abstract :Boiler flue gas desulfurization system should be bined with power station subject system and then make the optimization ,so that to adapt to the requirements of increasingly stringent environmental emissions ,safe operation of equipment and energy saving and efficiency increasing This paper introduces the fluidization wind system ,process water system ,equipment cooling water system ,low-lemperature economizer system etc . systematical optimization methods . Key words :flue gas desulfurization ;system optimization 前言 排入排水沟后再回至吸收塔;低低温省煤器没有设置温度调 近来,全国大面积雾霾天气的持续加重,环保部门加大 节装置等。这些系统设置没有将脱硫系统与电站主体系统有 了对燃煤电站烟气处理的管理力度。被称为“史上最严”的 效结合,或者造成系统复杂、或者造成系统运行不便,给系 《火电厂大气污染物排放标准》(GB13223-2011)实施不 统运行安全带来了一定的安全隐患,同时也在一定程度上提 久,2014年9月12日,国家发展改革委员会、环境保护部、 高了工程造价,也不利于系统节能。以下拟结合电站主体系 国家能源局联合下...
58 当代化工研 Chenmical 行业动态 201601 煤质化验与煤质变化对火力发电厂的影响分析 聂爱民 (合肥热电集团天源热电有限公司安徽合肥230000 摘要:我国电能主要来源于火力发电厂,这就需要大量的煤炭,长期燃烧煤炭一定会对火力发电厂造成各种各样的影响,尤其是煤质化 脸和煤质变化对其影响较大,因此,应全面分析它们给火力发电厂所带来的彩响,并根据实际情况提出有效整改措施。 关键调:煤质化验;煤质变化火力发电厂 中图分类号:T文献标识码:A Analysis of the Influence of Coal Quality Analysis and Coal Quality Variation on Thermal Power Plant Nie Aimin ( HefeiThermoelectric Corporation Tianyuan Power and Heat Co .Ltd Hefei city in Anhui province ,230000 ) Abstract :China's electric energy is mainly es from thermal power plant ,so large number of coal is needed ,however ,long period of coa I bustion will definitely cause various influences to thermal power plant ,especially for the heavier infuence of coal quality analysis and coal qua lity variation .As for this situation ,we need take a overall analysis on the influence of these factors to thermal power plant ,furthermore effective fication measures need to be put forward according practical conditions . Key words :coal quality analysis coal qualiry variation thermal power plant 前言:随着人们对电能需求的增多,火力发电厂的应用 而导致燃烧却不充分,有时还会出现灭火甚至打炮的情况, 也就越来越多,但在实际工作中发现,很多电厂出现了煤炭 致使机组不能安全运行。通常情况下,灰分含量越高,炉膛 存储量不足的情况,经常因缺少煤炭导致停机,不仅影响到 所遭受的磨损就越严重,有时还会威胁到整个机组...
粉煤灰综合利用 2015No.6 FLY ASH COMPREHENSIVE UTILIZATION 试验与应用 煤矿井下壁面封堵涂料的制备试验 Preparation of Wall Sealing Coating for Underground in Coal Mine 刘建强,杨凤玲,宋慧平,程芳琴 (山西大学资源与环境工程研究所,国家环境保护煤炭废弃物资源化高效利用技术重点实验室,山西太原030006) 摘要:为了有效抑制煤矿井下瓦斯气体涌出,本文通过考察不同种类聚合物乳液和液粉比对瓦斯封堵涂料性能 (包括表干时间、实干时间、断裂伸长率、抗拉强度、吸水率、耐火性)的影响,研制出一种新型聚合物水泥类煤矿井下瓦 斯封堵涂料。结果表明添加S400F乳液的涂层性能最好,且成本较低,最适合用于制备煤矿井下封堵涂料;随着液粉比 的增大,涂层抗拉强度降低,断裂伸长率升高,防水性得到改善,但涂层干燥时间会变长,耐火性也相应变差。因此,表层 材料宜采用0.4~0.5的液粉比,底层材料宜采用0.2左右的液粉比。 关键词:聚合物乳液;瓦斯封堵涂料;煤矿井下;耐火性;液粉比 中图分类号:TU545 文献标识码:A 文章编号:1005-8249(2015)06-0014-05 Liu Jianqiang ,Yang Fengling ;Song Huiping ,Cheng Fangqin ( Instituteof Resources and Environment Engineering State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources ,Shanxi University ,Taiyuan 030006 ,China ) Abstract :In order to suppress the gas emission in coal mine efficiently ,a new type of coal mine gas seal coating is developed .The properties of gas sealing coating were investigated by different kinds of polymer emulsion and liquid powder ratio in this paper ( includingsurface dry time action time ,elongation at break ,tensile strength ,water absorption ,fire resistance ).The results shows ...
粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2013NO.4 试验与应用 煤矸石热活化性能研究及其用于建筑砂浆的制备 Study of Thermal Activation Properties of Coal Gangue and Its Preparation for Building Mortar 张蕾12,宋旭艳3 (1.同济大学建材研究所,上海201804;2.先进土木工程材料教育部 重点实验室,上海201804;3.苏州科技学院,苏州215011) 摘要:采用勃氏透气仪、激光粒度仪、X射线衍射(XRD)等分析方法分别对550℃、650℃、750℃、850℃和950℃ 5个活化温度所得的煤矸石进行了比表面积、粒径分布和矿物成分分析,研究了煅烧温度对煤研石矿物成分的影响机 理.结果表明:550℃和650℃煅烧的煤研石矿物分解不充分,形成的活性Si02和A山203含量少,煤研石火山灰活性低; 850℃和950℃煅烧的煤矸石,其活性S102和A1203又重新化合成新的晶体结构,煤矸石活性同样较低;750℃是煤研石的最 佳活化温度,该温度下煤研石具有最疏松的矿物结构和最高的活性SiO2和A山2O3含量,且该活化温度配制的砂浆性能最优. 关键词:煤研石;热活化;矿物成分;XRD;砂浆性能 中图分类号:TQ177.6*9文献标识码:A 文章编号:1005-8249(2013)04-0027-04 Zhang Leil.2 Song Xu yan' (1.Institute of Building Materials Tongji University Shanghai 201804 China; 2.Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education Tongji University Shanghai 201804 China;3.Suzhou University of Science and Technology Suzhou 215011 China) Abstract:The specific surface area particle size distribution and mineral ponents of coal gangue by different thermal activation tempera- ture-550℃,650℃,750℃,850℃and950℃-have been analyz d by the methods of Bertrand pemeability instrument laser particle analyzer and XRD as well as the influence mechanism of calcined temperature on the mineral ponents of coal gangue.The results show that:the minerals of coal gangue after the temperature of550℃and650℃has not been fully deposed which leads to a low content of active Si(02 and Al203 ss well as the low pozzolanic act...
粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2015N0.5 专题研究 煤矸石混凝土碳化性能初步研究* Preliminary Study on the Carbonization Performance of Coal Gangue Concrete 王洋,胡凯伟2 (1.同济大学先进土木工程材料教育部重点实验室,上海201804; 2.武汉理工大学硅酸盐材料与工程国家重点实验室,湖北武汉430070) 摘要:利用正交优化试验研究了不同因素对煤矸石混凝土抗碳化性能的影响.研究表明:在各因素中,水胶比对 煤矸石混凝土抗碳化性能影响较为显著,煤矸石掺量和硅灰掺量影响次之,减水剂掺量对其抗碳化性能影响最小. 关键词:煤矸石;混凝土;碳化;正交试验 中图分类号:TU528.2文献标识码:A 文章编号:1005-8249(2015)05-0003-05 Wang Yang' Hu Kaiwei? (1.Key Laboratory of Advanced Civil Engineering Materials of Education Ministry Tongji University.Shanghai 201804 China; 2.State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Wuhan 430070 Hubei China) Abstract:According to the orthogonal optimization experiment the impact on the coal gangue conerete carbonization properties of all the parameters is studied.The experimental results show that the W/C has the significant effect on the carbonation resistance performance followed by the contents of coal gangue and the silica fume and the water reducing agent has the least impact. Key Words:coal gangue;concrete;carbonization performance;orthogonal optimization test 煤研石是指煤炭在生产过程中产生的一种废弃岩弃煤研石进行有效的利用,具有较高的经济效益和社 石,长期积存和逐年排弃不仅占用了大量的土地,且在会效益...
粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2012o.1 题研 焦炭-水泥基复合材料电磁屏蔽性能的研究 Research on The Electromagnetic Shielding Performance of Cement-Based Composite Materials of Coke 宋钦 (1.同济大学材料科学与工程学院,201804; 2.同济大学先进土木工程材料教育部重点实验室,上海201804 摘要:研究了焦炭和碳纤维的掺量,焦炭细度,减水剂,样品厚度对材料电磁屏蔽性能的影响。分别利用两电极法 和同轴电缆法测试了材料的电阻和电磁屏蔽效能。研究结果表明增加焦炭的掺量对水泥基材料导电性能的影响不显 著,但增加焦炭细度能明显提高水泥基材料的导电性能;而样品厚度对水泥基材料的电磁屏蔽性能影响不大;焦炭水泥 基材料掺人碳纤维后能使材料的导电性能和电磁屏蔽性能明显提高。 关键词焦炭水泥基材料电磁屏蔽 中图分类号:TU317.6 文献标识码:A 文章编号:1005-8249(2012)01-0023-05 Song Qin ( KeyLaboratory of Advanced Civil Engineering Materials ,Ministry of Education ,Tongji University ,Shanghai 201804 ) Abstract :Rescarch the influence to the electromagnetie shielding performance of coke and carbon fiber content ,fineness of coke ,water - reducing agent ,the sample .Resistivity were measured using two-probe method ,and shielding effectiveness were measured the cable method .The result show that increasing the contents of coke ,the conductivity of cement based materinl changes little .But when increasing the fineness of coke ,the conductivity of the cement based material will increase too .As the thicknese of sample increase ,the shielding effectivity of the cement based mater...
粉煤灰综合利用 2012No.2 FLY ASH COMPREHENSIVE UTILIZATION 研究 热活化煤石-水泥复合体系水化性能分析 Research on Hydration Properties of Blended Cement based on Thermal Activated Coal Gangue 何燕 (同济大学材料科学与工程学院建筑材料研究所,上海201804) 要:采用比强度法对活化煤研石的火山灰效应进行评定,通过Ca(OH)2剩余量和化学结合水量的测定,分析活 化煤矸石水泥体系的水化程度,并采用X射线衍射分析,差热分析对其水化过程进行研究。结果表明:煅烧温度为 750℃,保温时间为4h的热活化煤矸石对水泥体系的火山灰贡献率较高;该体系Ca(OH)2剩余量较少,化学结合水量较 多,其水化产物主要以Cs凝胶,Ca(OH)2和钙矾石为主。 关键词:煤矸石热活化水化性能 中图分类号:TQ172.78*2 献标识码:文章编号:1005-8249(2012)02-0014 He Yan College Material Science and Technology ,Tongji University ,Shanghai 201804 ) Abstract :By specifie strength concept ,the pozzolanic effect of activated coal gangue could be investigated .Through the content of Ca ( )2surplus and the amount of chemically bined water ,the hydration degree of activated coal gangue-cement system could be investigatod . By means of X-ray diffraction and Differential Thermal Analysis etc ,the hydration process of the cement system with activated coal gangue could 化反应的早期其填充作用较明显,使集料与浆体的界 (3)磨细粉煤灰中<20m的颗粒粒径对其活性 面缺陷减少,致密性提高,大幅度提高了强度,进一步 影响较大,粉磨时间对抗折强度活性指数的影响比抗 延长粉磨时间则效果不显著;后期粉煤灰火山灰活性 压强度活性指数的影响较大,粉磨10min对7d抗压强 起主要作用,粉煤灰细度的减小,增加了粉煤灰颗粒的 度活性指数的影响较显著。 反应面积,使浆体中的水化产物增多,后期强度有一定 参考文献 程度的增加。 [1]文梓芸,钱春香等混...
粉煤灰综合利用 2018 NO.1 FLYASHCOMPREHENSIVEUTILIZATION 试验与应用 so 蒋昆,付杰,黄娅琴,姜茂发 (东北大学多金属共生矿生态化冶金教育部重点实验室,辽宁沈阳110819) 摘要:采用烧结法工艺制备玻璃陶瓷,借助金相显微镜和扫描电镜等分析手段,研究了烧结制度对废弃稀土抛 光粉制备玻璃陶瓷致密性的影响作用。
结果表明:随着烧结温度的升高,玻璃陶瓷表面气孔率明显降低,致密性增大。
关键词:废弃稀土抛光粉;玻璃陶瓷;烧结法;致密性 中图分类号:TQ174.6"52文献标识码:A文章编号:1005-8249(2018)01-0020-03 Jiang Kun,Fu Jie,Huang Yaqin,Jiang Maofa Ministry ofEducation Key Laboratory for Ecological Metallurgy ofMultimetallic MineralNorheastern University,Shenyang 110819, China) Abstract: Preparaton of glassceraisby sitering preTheeffcts of sinrn sytem ontheenificationo glassy ceaics prepared by wast ra of sintering tmperature, the prosty of glass ceramic is obviouslydecreased and the densty is inereased. Keywords: waste rare earth polishing powder, glass ceramics sntering process density 21世纪以来,随着光学与电子信息科学技术的 中含有稀土氧化物、抛光过程中产生的玻璃粉和有 快速发展,光学玻璃需求量逐年增加,带动了稀土 机质等。
[关键词】隧道工程;炭质页岩;围岩;变形;数值模拟 [中图分类号]TU454;U459.2【文献标识码】A[文章编号]1002-8498(2012)19-0087-03
Research on The Surrounding Rock Deformation Law of Carbon Shale Small Interval Tunnel
Duan Baofu, Weng Xianhe ( Shandong Provincial Key Laboratory of Civil Engineering and Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao, Shandong 266590,China)
rock tunnels was simulated using finite element software and the range of disturbance caused by the excavation was quantatively determined. Numerical simulations were also performed for the upper tunnel under carbonaceous shale in small interval tunnel and simulation results were pared against site measurement. Conclusions were drawn regarding the principles of tunnel surrounding rock deformation when the two holes are constructed differently. Key words:tunnels; carbonaceous shale; surrounding rock ; deformation; numerical simulation
一当开挖断面距离较小时,隧道之间相互影响较隧道洞室轴线基本平行。
粉煤灰综合利用 2010No.6 FLY ASH COMPREHENSIVE UTILIZATION 试验用 炉渣基透水材料对Cr+的吸附性能研究 Study of the Adsorption of *on Slag-based Permeable Material 张小龙,张诚,龙昀光2 (1.西北工业大学理学院应用化学系,西安710129;2.西北工业大学明德学院,西安710124) 摘要:利用炉渣的性质制成炉渣基透水材料,研究对六价铬离子的去除效果。在试验条件下,分析骨料配比和水 泥的比例对样品的影响,确定在骨料配比(细粒:中粒=2:1)和对水泥的比例为21时样品对重铬酸根离子的去除效 果较好,即1cm厚炉渣基透水砖对六价铬离子三次透过后的去除率高达78.50%,而对于10cm透水填料柱,一次性对高 浓度重铬酸根离子的去除率就可达到99.32% 关键词:炉渣;重铬酸根吸附 中围分类号:X703 文献标识码:A文章编号:1005-8249(2010)06-0026-04 Zhang Xiaolongl ,Zhang Chengl ,Long Yunguang2 ( 1School of Science ,Northwestern Polytechnical University ,XianShaanxi 710129 Northwestern Polytechnical University Ming De College ,XianShaanxi 710124 ) Abstract :The slag with its nature is made into permeable material ,and is stapied to study the remowal effere of the hexavalent chromium ions .In the experimental conditions the paper ,analyses of the inpuenceof the ratio of aggregate and cement ratio on the samples ,determines the ratio of the aggregate fine :medium grain = 2:1 )and the ratio of cement are 3 :1 .The samples of the dichromale ion removal is better ,that is thick slag based on the hexavalent chromiumion permeable brick as high as 78 .50% removal rate through the post three ...
87 当代化工研究 Chenmical 百家争鸣 2016·02 火电厂烟气脱硝技术的经济效益 郝晓臣胡萍张燕肖娟 (新疆天业(集团)有限公司天伟电厂新疆石河子832000 新疆天富能源股份有限公司东热电厂新疆石河子832000 新疆筑城建筑勘察设计咨询有限公司石河子分公司新疆石河子832000 新疆天业(集团)有限公司天能电厂新疆石河子832000 摘要:随着经济的高速发展,燃煤量也迅猛攀升,随之大气污染成为影响我国环境的主要原因,我国的发电量排放要远高于欧美等国 家,受到了国际的重视与监督,为了我国经济与社会的可持续健康发展,应采取相应的措施控制环境质量的加剧恶化,国家对燃煤电厂的 排放物进行了控制,也出台多项政策与法规,明确规定加大技术研究力度,目前我国火力发电技术仍在不断创新与突破,本文对火电厂烟 气脱硝技术的研究与发展进行概述,并对火电厂烟气脱硝的技术工艺及经济效益进行分析,以及提出合理化建议供参考。 关键词:火电厂;烟气脱硝技术;经济效应 中图分类号:文献标识码:A Economic Effect of Heat-engine Plant Flue Gas Denitrification Technology Hao Xiaochen ( TianweiPower Plant of Xinjiang Tianye industry ( group)co.,LTD ,ShiheziSinkiang ,832000) Abstract :With the fast development of economy ,the quantity of coalburning is increasing in great degree ,asa result ,airp ollution bees the main reason inffuencing China's environment .China's generate electricity discharge outclasses occident ,wh ich gets international high attention and supervision .In order to make China's economy and society get sustainable and healthy development ,rel evant countermeasures should be taken to prevent the rapid worsening of environment quality .China has taken control for the discharge coal - fired power plant and also has ...