水泥厂中给排水常见问题的分析与对策

水泥厂给排水系统对于水泥厂的建设至关重要，给排水的施工进度以及调试，直接影响着水泥工艺设备的调试计划，本文结合给排水系统的设计、安装、调试对给排水可能出现的问题及处理措施进行分析与探讨。     

鲁南水泥厂对窑尾废气处理系统的改造

鲁南水泥厂对窑尾废气处理系统的改造安广析鲁南水泥厂（２７７５３１）我厂拥有两条２０００ｔ／ｄ熟料的窑外分解生产线，由国内设计、制造、安装、调试，于１９９０年５月投入试生产。试生产以来，窑尾废气处理系统逐渐暴露出工艺设计不尽合理，设备制造、安装质量差等...     

引进计算机系统的维修与开发

引进计算机系统的维修与开发邹伟联（冀东水泥厂）国内许多新建或扩建的大、中型水泥厂，大部采用引进的计算机开发的自动控制系统来满足水泥工艺自动化生产的需要，引进的计算机系统，经过安装、调试、考机、验收，投人运行之后，主要有两方面工作要做：第一方面的工作就...     

浅谈水泥厂调试前的工艺检查和参数确定

<正>水泥厂调试前需对生产工艺、机械设备、电气自控设备等进行认真细致地检查,发现问题及时整改。这几项工作不可马虎,做得好,可缩短调试工期和费用,从而使新建水泥厂尽快达标达产。笔者曾参与了多个水泥厂的调试,现将调试前工艺检查中发现的共性问题和部分不易被重视的工艺参数进行介绍,仅供参考。     

鲁南水泥厂2000t／d窑尾158m^2电收尘系统调试介绍

鲁南水泥厂２０００ｔ／ｄ窑尾１５８ｍ~２电收尘系统调试介绍成鸿昌山东省滕州市鲁南水泥厂（２７７５３１）１引言鲁南水泥厂是国家“七·五”重点工程，建有２条２０００ｔ／ｄ熟料的干法水泥生产线。窑主机为带四级悬浮预热器及分解炉的Φ４ｍ×６０ｍ回转窑。窑尾废?..     

ATOX37.5生料磨操作分析及调试中的一些工艺问题

本文介绍了华新水泥厂ATOX 37.5生料立磨系统在调试期间的操作情况,并对该系统的有关工艺问题展开了讨论.     

堵漏密闭——新型干法水泥厂达标达产的有效措施

堵漏密闭——新型干法水泥厂达标达产的有效措施高权杨振亭郭培洋哈尔滨水泥厂（１５００５０）１引言我厂５＃窑系统是１９９３年投入试生产的五级悬浮预热窑外分解窑，系由合肥水泥设计研究院设计，工厂对系统投入了很大的精力，经厂院共同调试，各项性能及工艺参数基本...     

双阳水泥厂二期工程提前点火

经过天津水泥工业设计研究院调试组及双阳水泥厂全体职工的日夜奋战和共同努力，双阳水泥厂二期工程水泥熟料生产线于８月１６日上午１０点５８分点火，１９日正式磨煤，煤粉系统贯通，２１日９点２８分正式投料，至１２时止料，共计喂料２．５小时，平均喂料量８０吨／小时，实现了投料试车的目标，整个工程较原计划又大幅度提前。双阳水泥厂二期工程提前点火     

山西水泥厂预分解系统特点及调试体会

本文着重介绍了山西水泥厂预分解系统的特点及其调试过程中发现的问题和处理办法。     

污水处理厂给排水设备联动调试工艺分析

针对污水处理厂而言,调试给排水设备的重要性及必要性毋庸置疑。对此,本文将立足某一污水处理厂的具体情况,基于调试目的、调试条件与主要内容,简要分析具体的调试工艺,厂内给排水设备通过调试能够达到最佳的运行状态,从而为其他污水处理厂进行联动调试予以必要的工艺参考,最大程度发挥联动工艺的作用。     

乙苯,苯乙烯的生产及合成乙苯,苯乙烯催化剂的研究进展

苯乙烯是重要的石油化工原料。本文介绍了国内外苯乙烯生产的发展概况，合成乙苯，苯乙烯所用的催化剂种类，并就苯乙烯生产及催化剂的发展趋势提出了自己的观点。     

Synthesis and characterization of homopolymers and copolymers of various acrylates and acrylonitrile

Various homopolymers and copolymers of methyl acrylate, ethyl acrylate, butyl acrylate, and acrylonitrile in different feed ratios were synthesized. These were characterized by IR, ¹³C-NMR, DSC, DTA, and TGA. Spectroscopic characterization helped in differentiating copolymers of different mol ratios. Thermal analysis revealed different degradation patterns for homopolymers and copolymers. The temperature and energy changes associated with various phase transitions were dependent on the chemical composition of homo- and copolymers, as expected. © 1993 John Wiley & Sons, Inc.     

生物质气化及生物质与煤共气化技术的研发与应用

总结了生物质原料的特点及生物质单独气化的缺点;介绍了国内外生物质气化技术及生物质与煤共气化技术的研发与应用现状;分析了在此领域国内外的发展趋势与前景;概括了开展生物质与煤共气化技术研发的意义。     

Electronic structures and reactivities of monometallic and bimetallic clusters of Au and Cu

The variation of the Au 4f binding energy of Au clusters with the cluster size has been established by measuring the binding energies of clusters whose size distributions were independently determined by HREM and STM. The binding energy increases significantly when the cluster size is less than 2 nm. Au-Cu bimetallic clusters of the composition Cu₃Au have been deposited for the first time on carbon substrates. The shifts in the core level binding energies of the bimetallic clusters show the effect of alloying in the case of large clusters, but show effects of both alloying and cluster size in the case of the small clusters. The interaction of CO with Cu₃Au clusters is stronger than with a bulk Cu metal. The interaction of CO with small Cu clusters also seems to be stronger than with bulk Cu or with large Cu clusters.     

钾盐资源及钾肥供需情况分析及预测

阐述了国内外钾盐资源及钾肥生产现状,对国内外钾盐的供需形势进行了分析及预测,从资源、原材料、国际市场三方面提出了解决我国钾盐短缺的措施。     

Kinetics and Mechanism of Oxidation of Mono- and Polyacetals

Abstract

Kinetics and mechanisms of oxidation of 6 acetals by molecular oxygen and ozone in liquid phase have been studied. Reaction with molecular oxygen (70°C, 15–16 hr) leads to the formation monoethers of the corresponding glycols with 68–90% selectivity. Salts of metals and complexes with crown-ethers have increased the reaction rate significally. Ozone have reacted with acetals with formation similar products. The mechanisms of intermediate stages have been proposed.     

Comparison of the Adhesion and Cohesion of Triblock and Random Copolymers of Styrene and Butadiene

A substantially greater detachment energy is required to strip a polyethylene tereph-thalate (Mylar) film from a styrene-butadiene-styrene (SBS) triblock copolymer compared to that for peeling from a random styrene-butadiene (SBR) copolymer. This is true even though the intrinsic interaction between the Mylar and each elastomer is expected to be similar because of their virtually identical chemical composition. It is proposed that this difference in peel strength (between the SBS and SBR) is a consequence of the much higher dissipative capacity of the former elastomer. Another manifestation of this is the higher cohesive tear strength of the SBS compared to the SBR. Extents of energy dissipation within each elastomer during detachment of the Mylar adherend are consistent with the hypothesis that the average maximum stress experience before detachment is some similar fraction of each elastomer's tensile strength.     

责任和责任心的涵义与结构

责任是人应主动承担的角色义务和对其因过失所造成后果应承担的责罚.有两层涵义:一是义务;二是后果.责任心是个体自觉做好分内事务和履行道德义务的心理倾向,是个性心理品质成分中自我特征维度上的重要内容.责任心具有两个方面的涵义:一是角色分内职责;二是角色道德义务.责任心是一种通过责任认知、责任个性和责任适应的动态形式表现出来的静态品质,责任心是责任心过程结构与责任心关系结构相互制约、相互影响的统一体.     

二甲基二烯丙基氯化铵和丙烯酰胺的合成及应用

用复合引发体系(过硫酸盐-偶氮类引发剂)和脂肪胺类氧化还原体系引发,在实验室获得了单体转化率≥98%,特性粘数高于13.6 dL/g的阳离子共聚物PDA,探讨了控制聚合物分子量的影响因素.     

Wetting properties of homopolymers and copolymers of pentafluorostyrene and methylacrylate and homopolymer blends

Polypentafluorostyrene (PPFS), polymethylacrylate (PMA), and poly(pentafluorostyrene-co-methylacrylate), poly(PFS-co-MA) were prepared and the wetting characteristics of polymer blends of PPFS and PMA were compared with that of poly(PFS-co-MA) via contact angle measurements. The critical surface tension of polypentafluorostyrene was found to be 22.6 dyne/cm, which is comparable to the value reported for polytrifluoroethylene (22 dyne/cm). The critical surface tension of poly(PFS-co-MA) is not linearly related to its composition. The polymer blends of PPFS and PMA exhibit significant surface enrichment of the fluoropolymer. The harmonic-mean method¹ was employed to determine surface tensions of these polymers and many known polymers. It is found that the method produces useful surface tension data provided the contact angle values are derived from testing liquids of dissimilar polarity.