地面除尘站在捣固焦炉上的应用

青岛焦化公司地面除尘站除尘系统存在排灰不畅，预喷涂、喷吹装置失灵，防爆板经常爆裂，除尘布袋多次着火，室外切换设备失灵等问题，整个系统已无法继续正常使用。通过对工艺系统、拦焦车液压系统、预喷涂、排灰、喷吹等系统的改造，使之适应捣固焦炉的消烟除尘，降低了焦炉生产的污染程度，改善了周边地区的环境状况，取得了良好的效果。     

LX88A高硬耐磨涂层材料在布袋除尘管道上的应用

分析了韶钢动力厂布袋除尘系统荒煤气支管弯头频繁磨损穿孔的原因,通过对比电弧喷涂LX88A高硬耐磨涂层与其他喷涂方法的优缺点,介绍了LX88A高硬耐磨涂层的喷涂工艺和该高硬耐磨涂层材料的使用效果。     

焦化厂除尘系统改造方案研究

介绍了凌钢焦化厂除尘系统现状及存在的问题,针对焦化厂现有除尘系统进行优化改造,增加风机风量,除尘器前增设阻火器和预喷涂,实现焦炉烟尘有效收集的同时,确保除尘效果。最终控制烟尘飞扬扩散,满足国家排放标准的要求,减少有害物质对人类危害。     

天钢炼钢厂精炼炉实施炉顶喷涂除渣一项新工艺取得多重效果

炼钢厂在精炼作业区实施了一项新工艺,对3#精炼炉炉顶进行喷涂除渣技术试验,经过一段时间的试验,此项新工艺的采用对维护设备、环保除尘、减轻劳动强度都有明显的效果。     

冷喷涂工艺中粒子流轨迹的数值模拟

采用计算流体力学（CFD）技术模拟研究了冷气动力喷涂技术中粒子流的流场分布特性。通过计算,分析了不同粒子直径下粒子在气体流场中的轨迹,比较了平面基板和球形基体对粒子流轨迹的影响。模拟结果清楚给出了两种条件下粒子流的流动方向和速度大小,为冷喷涂系统粉末回收与除尘装置的设计提供了理论指导。     

金属表面涂层技术在除尘风机上的应用

碳钢薄板厂转炉一次除尘采用湿式法除尘,存在以下问题:1、转炉烟气中的灰尘、水汽和混合气体在风机作用下,形成高速气流,严重冲刷、侵蚀风机转子前后端板、叶片。2、转炉烟气中的灰尘附着在转子前盘、后盘和叶片表面,破坏转子动平衡,转子使用周期较短。3、影响风机轴瓦、偶合器使用寿命,对风机基础也产生较大影响。4、转子在线使用周期短,检修时间长,人力物力消耗巨大,不利于设备管理和降低费用消耗。炼钢保障作业区相关技术人员针对转炉一次除尘风机转子工作特点和工作环境,进行了多方面分析、论证,在转子表面喷涂金属保护层、对转子反冲洗系统进行改进,降低了转子振动,延长了转子使用周期,缩短了检修时间和人力物力财力消耗,避免了转炉烟气中烟尘、水分及腐蚀性气体对转子及叶片表面的冲刷和侵蚀,延长转子使用寿命,提升了设备综合效益。     

成钢配有球式热风炉的318m~3高炉建成投产

成都钢铁厂318m~2高炉于1991年10月8日投产。该高炉设计能力为年产生铁20万吨,其工艺装备除采用大中型高炉成熟的常规装备(单排大矿槽与槽下集中过筛和槽下除尘;斜桥双料车上料;钟阀液压炉顶,双探尺、空转定点布料;自立式框架炉体,炉身喷涂;矮身液压泥炮及液压折迭式堵渣     

除尘管网的节能设计

从除尘管道流速的选取、除尘支管连接方式的改进、弯头三通尺寸参数的优选、局部阻力元件比较、最不利管路调整优化及间歇工作除尘点的连接技巧等方面提出了除尘管网节能设计的途径,通过方案及数据对比说明除尘管网节能潜力很大,值得管网设计人员及除尘用户重视。     

除尘器的改造及管道优化

介绍了干燥烟尘的性质,分析、比较了湿法除尘、电除尘、袋式除尘3种干燥烟尘除尘方式的优缺点。叙述了中原冶炼厂袋式除尘工艺的改造过程、措施及对除尘通风管道进行的优化设计。除尘器改造应用实践表明,精炼车间粉尘回收率大大增加,除尘效果良好。     

冷铁4#高炉炉衬脱落分析及维护措施

我厂4~#高炉(175米~3)于1989年10月26日投产。该炉设计中采用了一系列新技术,其中主要有干式布袋除尘、ACL顶燃式热风炉、HY型钟阀炉顶、汽化冷却、槽下筛分、电子称量及自动补偿、炉壳喷涂保护层等。内衬材质为:炉底、炉缸砌自焙炭砖,炉腹以上用河南巩县节能材料厂新研制的铝炭砖。开炉一年多以来,由于多方面的原因,     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.     

Quality of life of relatives of mental patients

Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)