"五个机制"在双环盐厂的建立和运用

文章就湖北双环盐厂依托自身的特点和优势,以人为本,探索并建立具有自身特色的基层管理模式"五个机制".阐述了"五个机制"的内涵,介绍了双环盐厂运用"五个机制"强化管理,以机制管人,用机制育人,使各项管理工作取得了可喜的成绩.     

浅析变电站微机五防闭锁装置存在的问题

本文分别从设计、锁具配件以及操作票专家系统等三大方面重点分析了微机五防闭锁装置的现存问题,然后提出了针对性的解决措施,旨在加强与同行的沟通交流,不断改善微机五防闭锁装置的实际运行效果。     

基于配网系统的五防模拟操作系统研究

配网操作管理是调度运行指挥管理工作的核心内容之一,操作流程及操作步骤的正确性直接与居民用户、工业生产息息相关。与主网不同,由于配网系统多为放射状网络,线路走向错综复杂,且不具备"四遥"功能,调控员很难通过现有手段全面掌握配网信息,存在一定安全生产隐患。因此,滨海调控中心联合本公司运维检修部、营销部、发展策划部重新梳理了配网管理流程,搭建了配网五防模拟操作系统,通过操作预演,及时发现管理漏洞,真正通过技术手段全面提升了配网操作的安全管理。     

浅谈微机五防在继电保护二次回路的应用

现新建330～750kv变电所,由于包括断路器、隔离开关、甚至接地刀闸大都实现了遥控操作,加上GIS的普遍采用,就地操作设备相对较少。现在的微机五防遥控闭锁装置只有一根既是电源,又是通信线的单电源总线连接,十分简单。文章结合笔者多年的从业经验,详细分析出微机五防装置在电动设备的继电保护回路中的应用与意义,以提高变电设备运行的安全性和可靠性。     

基于"互联网+"下的"一体五网"心理健康教育

信息网络时代,伴随计算机技术的飞速发展、互联网普及与移动网络设备普及程度的不断提高,"互联网+"已成为足以代表时代的名词,同时也是社会各个行业与领域实现创新发展的重要指导思维."互联网+"背景下,高职院校的心理健康教育工作既迎来了一系列全新的发展机遇,又面临着诸多不同于以往的全新挑战.为此,高职院校在心理健康教育实践之中,应重视应用"互联网+"思维,将学生心理健康教育工作作为主体,即"一体",并在此基础上,建设"五网",即心理测评网、心理宣传网、心理课堂网、心理评价网、心理咨询网,从而为学生提供全方位的心理健康教育体系,让学生能够在"一体五网"的支撑下自主展开心理学习,促进学生在这一过程之中认识自我、接受自我、悦纳自我.本文主要对"互联网+"背景下高职院校心理健康教育工作迎来的机遇和面临的挑战进行分析,并探讨高职院校建设"一体五网"综合心理健康教育体系的具体策略,以供参考.     

玉米田后期管理

放秋垄 在玉米灌浆后期进行。秋后田间杂草旺盛，放秋垄是要割除田间杂草，不仅对当年玉米有利，而且对减轻下年草害十分重要。放秋垄要浅锄，以疏松土壤，提高地温，消灭杂草，促进早熟，增加产量效果十分显著。进行时，防止伤根过多和折断叶片。     

基于表面增强拉曼光谱的养殖水中五氯酚残留检测

应用表面增强拉曼光谱（SERS）技术,建立了一种水产品流通过程养殖水中五氯酚残留量的快速测定方法。参照经典方法制备金溶胶后将其浓缩作为增强基底,通过优化促凝剂、调节体系pH值、选择纳米溶剂及其用量、考察吸附等待时间得到最佳SERS增强效果。所建立的方法在0.2～4.0 μg/mL的浓度范围内具有良好的线性相关性,养殖水中五氯酚的检出限为0.5 μg/mL,回收率为78.74%～112.30%,精密度为6.1%～11.3%,满足残留分析的要求。定性方法灵敏度、特异性≥95%、假阴性率和假阳性率≤5%,结果均符合食药监科便函［2017］43号《食品快速检测方法评价技术规范》要求。该方法快速准确、操作简便,适用于现场快速检测养殖水中五氯酚残留量。     

开口毛细管法测定油脂性基质熔点的影响因素

研究了用开口毛细管法测定油脂性基质的熔点时，其升温速度与传温液起始、冷却温度与冷却时间，试样置水中的深度，毛细管内径等因素对蒋点的影响，指明了一定要严格操作规程，特别在升温速度、传温液起始温度与毛细管在水中的位置等方面进行操作的重要性。     

负宇称五夸克态

在Jaffe和Wilczek模型中存在负宇称的五夸克八重态和单态,这些五夸克态中的两个双夸克之间没有轨道激发,这些五夸克态比Θ＋的质量要轻,利用Jaffe和Wilc-zek模型计算了Jp=12-的五夸克八重态和单态的质量与磁矩,结果表明与普通重子有轨道激发（l=1）的质量接近,得到一些重要的质量和磁矩关系式,这些五夸克态的质量范围在1360MeV和1540MeV之间,建议在实验上寻找Jp=1/2-的五夸克八重态和单态,其中有两个Jp=12-的五夸克态质量在Λ（1405）的附近,建议Λ（1405）是负宇称五夸克的一个候选者,如果将来的实验证实了这些态,将对Jaffe和Wilczek模型是极大的支持。     

浅析汾酒大曲的控制指标

在汾酒大曲的生产过程中的各个环节主要是通过各种措施、操作调节大曲品温,进而调整曲房、曲块的水分含量,最后达到适合微生物生长的条件,从而培养出优质汾酒大曲。     

中低温蒸汽处理对鲜切胡萝卜片减菌效果及其品质的影响

以鲜切胡萝卜片为研究对象,采用中低温蒸汽(50～100℃)进行减菌处理,分析了蒸汽处理过程中鲜切胡萝卜片品质指标的变化。结果表明,鲜切胡萝卜片的菌落总数、水分、类胡萝卜素、硬度、色泽等指标均随处理温度及时间的增加而显著减少(P<0.05)。采用低温蒸汽(50～70℃)处理600s,对胡萝卜片的减菌效果明显,且失水率小于5%,类胡萝卜素保留高于85%,对蔬菜的硬度和色泽影响较小。而经中温蒸汽(80～100℃)及传统的沸水热烫处理后的胡萝卜片,其品质质地明显降低。因此,低温蒸汽减菌处理能有效降低胡萝卜片中的菌落总数,并可最大程度保护其品质质地。     

Experimental investigation of a novel batch evaporation system coupled mechanical vapor recompression technology and steam heat storage technology

In order to address the high energy consumption and low efficiency in batched food evaporation industry, such as beer boiling, lactose crystallization, drug concentration, a novel batched mechanical vapor recompression evaporation device coupled the heat storage technology and mechanical vapor recompression technology was assembled to capture and reuse the waste heat from secondary steam and reduce the water consumption. The relevant key parameters affecting the overall performance were investigated and analyzed, including evaporation temperature, interval time, startup time and compressor frequency. In a practical sense, the thermodynamic, economic, as well as the environmental performance of the proposed system was compared with the previous single-effect evaporation technology. Experimental results exhibited that the proposed system could accomplish efficient batch evaporation process at specific interval time with only a small amount of electricity, as the temperature loss of steam accumulator was approximately 1 °C. It was found that the evaporation temperature was a positive factor for the overall performance of the system, while the startup time of the whole system showed an opposite effect, subject to the startup time of the steam compressor. Furthermore, it was highlighted that the evaporation capacity of novel system was very sensitive to compressor frequency, while a minimum value of 64.5 kWht⁻¹ for specific heating energy consumption emerged at f = 65 Hz. Therefore, the operating cost and standard coal consumption could be saved by 85.26% and 83.66% compared to the single-effect evaporation technology, respectively, which demonstrated the significant superiority of the proposed method in economic and environmental benefits in batch evaporation industry.     

The fate of fluorine and chlorine during thermal treatment of coals

Release behaviors of fluorine and chlorine during thermal treatments of two Chinese coals, DT and JC, were studied in a quartz tube reactor. The thermal treatments included temperature programmed decomposition (TPD, 300-1000 degrees C) in N2 and gasification (800-1100 degrees C) under a H2O or CO2 atmosphere. The TPD results show that F and Cl in the two coals can be classified into three forms of occurrence, evolving in three temperature ranges, 150350 degrees C, 350-750 dgrees C, and >870 degrees C. Fluorine in the coals is significantly more stable than Cl during the TPD process. Both elements in DT coal are more volatile than that in JC coal, which may be attributed to coexisting F or Cl salts with minerals in JC coal. Gasification under a H2O or CO2 atmosphere may promote the release of F and CI. The promotion effect is more significant in a H2O steam, which is due possibly to reactions of H2O with F and Cl salts in the coals. For both coals, the release ratios are close to 94% for F and 98% for Cl at 1000 degrees C in a H2O steam. Under these conditions, the difference in release ability of F and Cl from the two coals diminishes. No clear correlation can be found between the release ratio of F or Cl with the corresponding volatile yield of the coals.     

染整节约热能技术分析

分析了染整生产中四个节约热能的问题及其正确节能的途径。一、使用湿蒸汽时应该增加汽水分离，并把热水回锅炉，既达到节能目的又有利于生产。二、供低压蒸汽虽有节能的一面，但只是在回水从地沟排掉时才成立。真正的节能是做好回收回水的工作。在供汽压力过低时还会造成能量的损失。三、无论是人工手动控制或微机自动控制供用、汽之间的数量平衡的办法，它并不能节能。合理的办法是在供汽用汽之间加一个起平衡作用的蒸汽蓄热器，保     

Beschleunigte Fixierung chromathaltiger Holzschutzmittel durch Heißdampfbehandlung

In laboratory tests and in a pilot plant of a treating plant the influence of temperature in wood during treatment with super-heated steam was tested by a specially developed device. In addition samples were taken from various depths, to test the intensity of fixation. To have a spontaneous fixation in the wood, 90 °C is necessary. This will be achieved in small diameter woods (less mass) easier than in larger ones, with spruce (less liquid due to less penetration) easier than with pine. For a fixation depth of 1 mm, in roundwood of up to 20 cm diameter, a steam treatment at 110 to 120 °C for 20 min is necessary for spruce, 30 min for pine and for a depth of 16 mm, 40 to 80 min respectively. In addition a basic heating-time is required, which depends on steam temperature, size of the plant, amount of timber to be treated and so on.     

CO_2叶丝膨胀线工艺参数对烟气成分的影响

从降低卷烟焦油、烟碱量的角度出发,分析不同工艺条件下膨胀叶丝常规化学成分及烟气成分。发现试验条件下,在饱和蒸汽加入量一定,工艺气体温度较高时,膨胀叶丝烟气成分中焦油、烟碱量和CO量较低;工艺气体温度相同的条件下,焦油量、烟碱量和CO量在蒸汽加入量600kg/h时最低。     

汽巴克隆C型染料的纯棉厚织物深色染色

根据汽巴克隆C型活性染料结构的特点，对纯棉厚织物染深灰、橄榄绿色及黑色，采用轧烘轧蒸工艺，对工艺中食盐用量、碱剂用量和汽蒸时间作了系统试验，投产后取得重现性和牢度良好的效果。     

挤压与汽爆麦麸添加对小麦粉糊化特性的影响

以低筋、中筋和高筋小麦粉为材料,考察原麦麸、挤压麦麸和汽爆麦麸的添加量、粒度对小麦粉糊化特性的影响。结果表明：在0.178～0.250 mm粒度范围内,随着麦麸添加量的增加,小麦粉峰值黏度、最终黏度和回生值都显著性下降（P＜0.05）,而糊化温度和糊化起始时间则呈现二次曲线增加的趋势。汽爆麦麸和挤压麦麸对于小麦粉糊化起始时间和糊化温度的提升效果明显高于原麦麸。随着原麦麸粒径的减小,中筋、高筋小麦粉的峰值黏度、最终黏度和回生值均呈现先降低再升高的变化趋势,而3 种麦麸糊化温度和糊化起始时间呈现下降趋势。在0.150～0.420 mm粒度范围内时,原麦麸的粒度对低筋小麦粉回生值的影响具有显著差异（P＜0.05）;挤压麦麸和汽爆麦麸的粒度对中筋小麦粉峰值黏度的影响无显著差异（P＞0.05）;原麦麸和汽爆麦麸的粒度对高筋小麦粉峰值黏度的影响具有显著差异（P＜0.05）。     

酿酒行业锅炉节煤改造的两点探讨

通过对锅炉给风、给水工艺的改进,提高了给风、给水温度,降低了吨煤产汽的成本,节约了煤炭。     

蒸汽喷射式热泵供热系统热力学分析

探讨了从造纸厂能量衡算的角度来分析蒸汽喷射式热泵供热系统的节能潜力,通过放大计算控制体,将锅炉纳入热力计算范围,计算纸机干燥部耗汽量和锅炉燃煤量来对比分析能量消耗,得出蒸汽喷射式热泵供热系统节能潜力的大概范围。提出蒸汽喷射式热泵用于供热系统的最主要作用是它显著地增大烘缸排水压差,减小烘缸传热热阻。研究蒸汽喷射式热泵及其系统的合理设计与利用。