旋转喷雾干燥脱硫工艺在烧结机上的应用

328m2烧结机脱硫系统处理烟气量为198万m3/h,采用旋转喷雾干燥脱硫工艺进行全烟气脱硫。系统运行后SO2排放≤100mg/m3,脱硫效率≥90%,粉尘排放≤30mg/m3,完全满足国家环保要求。     

硫化物去除硫酸锰溶液中重金属的研究

研究MnS、BaS为硫化剂去除硫酸锰溶液中重金属的影响。主要考查了硫化剂添加量、反应温度、pH以及反应时间对去除Co、Ni、Cr、Cd的影响。结果表明,MnS、BaS除重金属时,对Co、Ni的影响显著,对Cr、Cd无明显影响。当硫酸锰溶液体积为200mL时,较佳条件如下:MnS添加量3g、BaS添加量2g、反应温度75℃、pH=5.5、反应时间3h,可将Co从12mg/L降到0.03mg/L,Ni从32mg/L降到0.53mg/L,Cr从0.50mg/L降到0.19mg/L左右,Cd从2mg/L降低到0.16mg/L。从经济和溶液污染层面考虑,建议采用MnS除重金属较好。     

冶炼烟气制酸净化系统生产指标优化调控研究

通过改进动力波喷淋逆喷管压力,循环洗涤液流量、电除雾器电压、固氟剂的加入方式等措施,得出了160万t/a冶炼烟气制酸净化系统最佳调控参数,烟气净化后,酸雾≤3mg/m3、F≤0.25mg/m3、As≤0.6mg/m3。     

鞍钢干熄焦预存段放散烟气处理技术研究与应用

研究了一种焦炉干熄焦预存段放散烟气处理技术,通过将经过防爆袋式除尘器过滤后的干熄焦预存段放散烟气汇入焦炉烟道气脱硫脱硝系统进行处理,实现了干熄焦预存段放散烟气除尘脱硫净化目的,同时采用安全联锁自动控制技术,以保证干熄焦炉系统的稳定运行和安全生产。该技术应用后,干熄焦装置烟气SO2排放≤30mg/Nm^3、颗粒物排放≤15mg/Nm^3,完全满足《炼焦化学工业污染物排放标准》GB16171-2012要求。     

溶液控制模型在高速立式清洗段上的应用

为解决高速连退立式清洗段因电解清洗液位下降、脱脂剂冒泡、凝胶、残留等问题导致清洗后带钢的表面黑点缺陷。通过现场调研分析漏液发生的规律,提出了溢流管道增加阀门的控制理念,优化后液位下降速率由0.12%/s降低至 0.02%/s(清洗段速度为500 m/min),通过建立带钢带入系统污染物模型,定量计算不同工况下脱脂剂中残油、残铁含量,确定清洗段不同工况下脱脂剂排放以及消泡剂添加的最优量。建立了带钢带入热水漂洗系统脱脂剂计算模型,得出热漂洗段脱盐水排液量不得低于11.47 m3/h。通过上述措施,成功解决了高速立式清洗段清洗后带钢的表面黑点缺陷。     

碱溶—碳分法生产氧化铝过程中的质量控制

碱溶—碳分法生产氧化铝打破了拜耳法Na₂O-Al₂O₃-H₂O体系固有的相平衡,分解效率大幅度提高。研究了用NaOH溶液溶解铝土矿得到铝酸钠溶液,考察了铝酸钠溶液脱硅净化、碳酸氢钠分解及氢氧化铝焙烧对氧化铝产品质量的影响。结果表明,经两次石灰净化脱硅(净化温度98℃;一次净化时间1 h,石灰添加量15 g/L;二次净化时间1 h,石灰添加量10 g/L),二段分解(分解温度90℃,碳酸氢钠质量浓度90~100 g/L,缓慢持续加入,分解时间不大于16 h(其中一段8~10 h),第一段分解率控制在85%左右),适宜条件下,所得氢氧化铝质量达到一级品或接近一级品,在1200~1250℃煅烧后所得氧化铝产品质量可达二级品要求。     

活性焦联合脱硫脱硝技术在焦炉烟气治理中的应用

文章介绍了八钢四座6.5m顶装焦炉烟气治理工艺采用的活性焦联合脱硫脱硝工艺,以及脱硝段采用CSCR(活性炭选择催化还原)技术。该烟气治理工艺投运后,烟气排放指标SO_2≤30mg/m~3,NO_X≤150mg/m~3。     

高盐废水脱除氟离子实验研究

以某铅锌冶炼厂产生的含氟废水(1#废水含氟20mg/L,2#废水含氟78.5mg/L)为处理对象,投加钙源化学-混凝沉淀法除氟。研究了碳添加量、PAM、PAC、pH值对除氟效果的影响规律。结果表明：1#高盐废水的最佳试验条件为PAC投加量为800mg/L,PAM投加量为2mg/L,F含量由20mg/L降到3mg/L,脱除率为85%。2#高盐废水在最佳实验条件CaCl₂的投放量400mg/L,PAC投加量2g/L,PAM投加量为5mg/L,F含量由78.5mg/L降到3.64mg/L,脱除率为95.3%。     

废旧稀土荧光粉除铝渣二段酸浸回收稀土的研究

以废旧稀土荧光粉经酸浸、苛性钠焙烧、水洗除铝后的除铝渣为原料,采用二段酸浸并进行正交实验优化酸浸条件。结果表明,一段酸浸时,各因素对稀土浸出影响顺序为:液固比盐酸浓度浸出时间浸出温度H_2O_2添加量。在液固比6∶1、盐酸浓度6 mol/L、浸出时间60 min、浸出温度60℃、H_2O_2添加8%(体积分数)优化条件下,稀土总浸出率为95.48%,残酸浓度为2.18 mol/L,杂质Al含量高达134 mmol/L,Fe含量为1.78 mmol/L,Si含量达到3.89 mmol/L;二段酸浸在浸出温度60℃、浸出时间60 min下,通过添加新鲜除铝渣调节浸出液终点pH值为4,二段酸浸液杂质Al、Fe、Si含量降低到24.1 mmol/L、0.09 mmol/L、3.89 mmol/L,满足后续萃取要求。     

绿玉树茎段组织培养再生体系的建立

[目的]研究绿玉树茎段组织培养再生苗的条件,确定各培养阶段的最佳培养条件,为绿玉树组培苗工厂化生产和相关研究提供参考.[方法]以绿玉树茎段作为外植体试验材料,研究了不同培养基对萌芽率、增殖倍数、生根率的影响.[结果]萌芽培养最佳的诱导培养基为1/2MS+0.02mg/L NAA+1.00mg/L 6-BA,分化率为89.7%;继代培养最佳培养基为1/2MS+0.02mg/L NAA+0.60mg/L6-BA+3.00mg/L AD,增殖倍数为5.70;生根培养最佳培养基为1/2MS+0.40mg/L NAA+0.40mg/L IBA,生根率达100%,移栽成活率达80%.[结论]初步确定了绿玉树茎段组织培养的生长条件.     

深云立交桥梁检测及加固改造

根据深云立交桥梁的检测结果，对该桥目前的整体状况、工作状态，及其使用情况做出综合评价，对桥的病害原因进行了分析，并提出合理的加固方案。     

《儿子与情人》的语码转换与男女二元对立

劳伦斯小说《儿子与情人》一个鲜明的语言特色就是标准英语和当地方言频繁的语码转换。莫瑞尔用方言来对抗妻子,而妻子坚持用标准英语,偶尔也用方言来讽刺、挖苦丈夫。语码转换反映了劳伦斯男女二元对立的哲学思想。     

Status and solidarity in social comparison: Agentic and communal values and vertical and horizontal directions.

Social comparison involves positioning the self relative to others on a vertical or status dimension (ranging from upward to downward comparisons) and a horizontal or solidarity dimension (ranging from contrastive to connective comparisons). Across 3 studies in which 389 undergraduates recorded everyday social comparisons (n = 4,417), downward and connective comparisons were rated as more helpful and mood enhancing than upward and contrastive comparisons. The effects of horizontal comparisons were greater for people for whom solidarity was an important value; however, the effects of vertical comparisons were not greater for people who valued status. The roles of the comparison target, topic, and situation were also explored; for example, noticing undesirable features of the target enhanced status but undermined solidarity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

材料科学技术转型发展与钢铁创新基础设施的建设

摘要：在第4次工业革命浪潮的推动下,钢铁科学与技术正在经历数字化、智能化转型。钢铁行业全流程各工序均为“黑箱”,为多场、多相、多变的巨系统,具有复杂相关关系和遗传效应等。这些不确定性带来了巨大的挑战。挑战和机遇并存。这些不确定性提供了智能化和数字化技术的应用场景资源;钢铁行业极为丰富的大数据提供了挖掘其中蕴含客观规律的数据资源;现代的数据科学、智能技术为解决不确定性问题提供了强大的手段。以数据为中心,以工业互联网为载体,以实验工具、数字数据、计算工具为支撑,建设钢铁企业材料创新基础设施,将可以大幅度提高研发效率,降低研发成本,有力地支撑钢铁材料科学与技术的转型发展。实验工具平台除了传统的实验室仪器装备和中试装备之外,实际生产线被作为主要的实验工具。这些实验工具提供丰富、精准、写实的历史数据和现实生产数据,特别是生产线装备提供实际生产大数据,蕴含着生产过程中的全部规律,是极宝贵的数据资源。利用机器学习、深度学习等现代数据挖掘技术为计算工具,对这些数据资源进行处理、分析、计算,将数据转换为高保真度模型,可以得到具有“原位分析能力”的数字孪生。在工业互联网的总体架构下,以数字孪生为核心,组成信息物理系统,构建起基于数据自动流动的状态感知、实时分析、科学决策、精准执行的闭环赋能体系,解决生产制造、应用服务过程中的复杂性和不确定性问题,提高资源配置效率,实现资源优化,对材料行业转型发展提供关键技术支撑。虚实映射、实时交互、精准控制的信息物理系统与材料创新基础设施合二为一,以材料创新基础设施为基盘,形成具有“原位分析能力”的数字孪生,建设钢铁生产全流程、一体化的信息物理系统,必将推进钢铁行业智能制造蓬勃开展和数字化、智能化转型。     

Voices of fear and anxiety and sadness and depression: The effects of speech rate and loudness on fear and anxiety and sadness and depression.

Two studies investigated the role of expressive vocal behavior (specifically, speech rate and loudness) in fear and anxiety and in sadness and depression. In the 1st study, participants spoke about personally experienced fear and anxiety-arousing and neutral events using 3 different voice styles: fast and loud, normal, and slow and soft. In the 2nd study, participants spoke about personally experienced sad or depressing and neutral events using the same 3 voice styles. In both studies, the participants' highest levels of subjective affective and cardiovascular (CV) arousal occurred when they spoke about the emotional events in a mood-congruent voice style: fast and loud in the case of fear and anxiety, and slow and soft in the case of sadness or depression. Mood-incongruent voice styles canceled the heightened levels of CV arousal normally associated with these negative emotions. The voice-style manipulation had no significant effect on the participants' levels of CV arousal during the neutral discussions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Praise and Blame and Robinson.

Daniel Robinson suggests that much of the civil and criminal law "serves as the institutionalized form of praise and blame". Indeed it does. Pulling at this thread of Robinson's tapestry leads the reader straightaway to a host of truths about how law and morality not only intersect, but work together in harmony. "[L]aw", Robinson says, is a "vivid expression of deeper and impenetrably complex moral theories". This essay explores several of these harmonies, but focuses on two. One is that political society must be seen as the cooperation of free persons according to law, which persons hold common moral understandings. The second has to do with retribution as the moral justifying aim of punishing criminals. The author goes beyond Robinson's limited praise of retribution, and shows that some central features of our practice of punishment are understandable only within the retributive framework. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

钢铁产品交易与展示平台的设计与应用

为解决单个企业的信息化投资风险、从整体上降低企业信息化投入,针对大邱庄钢铁产业的类型特点,设计了一种新型信息化公共服务平台。详细阐述了钢铁产品展示及交易平台的建设内容及系统开发技术。该平台集产品展示、信息查询、用户管理功能于一体,实现了全自动、全智能的在线管理和维护,适用于中小型企业。该平台的应用最大化地发挥了大邱庄的产业优势,对大邱庄工业园区的宣传和市场开拓起到了一定的作用。     

Aging and negative affect: The rise and fall and rise of anxiety and depression symptoms.

The relationship between aging and negative affect is dynamic and complex. Although prior studies have often cited lower prevalence rates of anxiety and mood disorders among older individuals, these studies may miss the dynamic relationship between symptoms and aging. To evaluate a nonlinear model of the relationship between aging and negative affect, the author examined measures of neuroticism, anxiety, and depression symptoms in a cross-sectional, community sample (N = 335), ages 18 to 93. Results indicated a curvilinear relationship, with mean symptom levels increasing during early adulthood (until the mid-30s) and then showing a small decline until older adulthood (the mid-70s), when symptoms again increase with age. (PsycINFO Database Record (c) 2010 APA, all rights reserved)