4.8 m×13 m台车加热炉技术改造

介绍了4 8 m×13 m台车式加热炉的技术改造,阐述了炉子设计结构及热平衡测试结果.实践表明,改造取得了良好的节能效果及明显的经济效益.     

Φ3m×9m圆筒混合机改进设计

石横特钢厂Φ3m×9m一次圆筒混合机运行初期存在筒体挡圈开焊、本体撕裂、实心胶轮磨损较快,齿式联轴器易磨损断齿,上料倾角大,混料小球易破碎等问题,为此,采取增加混合机倾角、改用直径较大性能较好的实心胶轮、更换联轴器等措施,实心胶轮的使用寿命由90天延长为360天,设备故障率由0.8%降低至0.05%。     

Ф3m×9m圆筒混合机改进设计

石横特钢厂Ф3m×9m一次圆筒混合机运行初期存在简体挡圈开焊、本体撕裂、实心胶轮磨损较快,齿式联轴器易磨损断齿,上料倾角大,混料小球易破碎等问题,为此,采取增加混合机倾角、改用直径较大性能较好的实心胶轮、更换联轴器等措施,实心胶轮的使用寿命由90天延长为360天,设备故障率由0.8%降低至0.05%.     

Φ2.8 m×14 m圆筒干燥机滚圈设计

圆筒干燥机是钢铁厂高炉备料系统中的主要设备之一,此设备在生产过程中要充分考虑热胀冷缩对设备的影响,合理确定设备的主要结构和科学的间隙是保证圆筒干燥机正常运行的关键.     

云铜4m×11.7m转炉吹炼实践

叙述了云铜!4m×11.7m转炉的生产实践,重点介绍了转炉的构造、辅助设施、运行参数和操作环境等,指出了生产中存在的问题。     

云铜φ4 m×11.7 m转炉吹炼实践

叙述了云铜φ4m×11.7m转炉的生产实践,重点介绍了转炉的构造、辅助设施、运行参数和操作环境等,指出了生产中存在的问题.     

φ3m×11m圆筒混合机的研制

介绍了安钢烧结厂一混改造必要性与可行性,以及φ3m×11m圆筒混合机的设备特点与使用效果。     

φ4.4 m×18 m混合机筒体强度校核

筒体的强度是混合机设计中首要确保的,对筒体强度的校核是确保设备设计的合理性、准确性,在满足用户对产品的要求前提下,避免功能过剩.     

Φ3m×10m气力浸出槽的研制

气力浸出槽在国外称为帕丘卡浸出槽,是根据空气提升理论发展、研制出的设备,用于黄金氰化工艺中金(银)从矿物原料中溶解(浸出)。目前,国内外广泛采用的多为机械搅拌加充气形式的搅拌槽,这种设备动力消耗较大,被充入空气在矿浆中产生的搅拌作用没有得到充分利用。气力浸出槽就是利用充入空气在矿浆的这种作用,使矿浆在槽内运动、循环,让矿物颗粒、药剂、空气在矿浆中充分接触,以利于金的溶解。这种设备除了具有功耗省的特点外,因没有机械运转部件,又具有制造成本低、维修方便等优点。     

Ф10.5 m×8.5 m预热器液压系统的优化

由于预热器下料量不足,导致石灰产量达不到设计要求,分析认为主要是液压泵选型不当,液压泵额定输出流量偏小所致.通过计算液压泵额定输出流量下油缸的最短工作时间也证明了这一点.根据设计产量要求的推头工作时间,反向计算液压泵理论流量,并据此选型,改进后的预热器液压系统满足生产要求.     

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。     

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。     

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.     

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)     

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.