富氧侧吹熔池熔炼铜镍矿

介绍了富氧侧吹熔池熔炼工艺的特点,富氧侧吹炉的结构及生产实践.实践表明,富氧侧吹熔池熔炼铜镍矿具有流程短、能耗低、环境好等特点.     

富氧侧吹熔池熔炼工艺的冶金计算与生产实践

富氧侧吹熔池熔炼工艺的论证要先进行冶金计算,其中熔炼炉渣的化学成分是参照其他熔炼炉渣的化学成分设计的.根据反射炉熔炼和铜锍吹炼冶金计算方法并在其基础上进行修改,完成了富氧侧吹熔池熔炼工艺的冶金计算.与冶金计算结果相比,富氧侧吹熔池熔炼工艺正常生产时,产能提高,消耗降低,熔炼炉渣的化学成分与冶金计算值接近.     

铜镍矿富氧侧吹熔池熔炼工艺

介绍了铜镍矿富氧侧吹熔池熔炼工艺、主要技术经济指标以及富氧侧吹熔池熔炼炉的结构。实践表明,采用富氧侧吹熔炼铜镍矿具有流程短、能耗低、环境好等特点。     

富氧侧吹直接炼铅工艺研究与应用

介绍了富氧侧吹熔池熔炼炉的结构以及富氧侧吹熔池熔炼直接炼铅的工艺流程及特点。实践表明,富氧侧吹直接炼铅工艺具有流程短、能耗低、环境好、投资省等特点。     

锑精矿冶炼技术研究进展

针对锑精矿传统冶炼工艺存在能耗和环保等方面的弊端,诸多学者研究了多种锑精矿冶炼新工艺。本文在介绍锑精矿传统冶炼技术的基础上,详细介绍了熔池熔炼工艺、低温固硫工艺、电热挥发-电热还原工艺等锑精矿冶炼新技术。通过综合分析可知,富氧侧吹熔池熔炼工艺和电热挥发-电热还原工艺是锑精矿冶炼技术的发展方向。     

富氧侧吹熔池熔炼炉炼铜的生产实践

富氧侧吹熔池熔炼炉集物料的干燥、焙烧和熔炼于一炉。富氧侧吹熔池熔炼工艺投产后,对工艺控制参数和工艺的可变性及相应的控制方法进行了试验和摸索,试生产中出现了烟气中单体硫含量高、余热锅炉振动大、富氧侧吹熔池熔炼炉风眼砖和炉墙腐蚀严重、出口垂直烟道结渣及余热锅炉烟尘烧结等问题,通过分析提出了解决的方法,并对工艺的进一步优化提出建议。     

富氧侧吹熔池熔炼的工业生产实践

烟台鹏晖铜业有限公司的富氧侧吹熔池熔炼炉是一种自主研发的节能、高效、环境友好新型熔池熔炼炉.本文介绍了"富氧侧吹熔池熔炼-电热沉降分离-侧吹连续吹炼"炼铜新工艺的主要特点及生产实践.     

铜火法冶炼熔池熔炼工艺比较

铜火法冶炼熔池熔炼技术在不断地发展和完善,高效、节能、安全和环保已经成为炼铜技术发展的方向和目标。通过对富氧顶吹浸没熔池熔炼、氧气底吹熔池熔炼和富氧侧吹熔池熔炼工艺分析比较,了解不同熔炼工艺使用特点。     

我国锑火法冶金技术现状及发展方向

分析了我国目前锑火法冶金的技术现状,介绍了近年来锑行业在富氧熔池熔炼、复杂含锑物料处理方面的研究现状,分析我国锑冶金技术将朝富氧熔池熔炼方向发展。     

富氧侧吹炉高浓度富氧低碳炼铜生产工艺

富氧侧吹熔池熔炼炉在一个炉中集合了物料干燥、焙烧和熔炼等工序。富氧侧吹熔池熔炼工艺投产后,针对该工艺的参数、可变性及控制方法等展开积极的探索和试验,在试生产内发生了烟尘率高、烟气内的单体含硫量较高、余热锅炉上升烟道结焦等多个问题,分析提出相应的解决办法,针对工艺优化提出建议。     

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.