转炉基础自动化散装料系统的限位改造

散装料是转炉炼钢的重要组成部分,散装料系统的好坏,不仅直接关系到加料的准确性,而且影响炼钢的成分及质量。本文简述了１＃５０ｔ转炉基础自动化散装料系统的限位改造方法,该限位改造的成功,大大减少了限位故障满足了自动化炼钢的要求,保证了炼钢生产的正常进行。     

矮烟罩硅铁电炉加料系统的改造

为了使矮烟罩硅铁电炉的加料系统能满足生产需要，对原加料系统中的旋转料管和加料机以及加料管的密封进行了设计改造，介绍了改进措施及取得的效果。     

转炉基础自动化散装料系统的限位改造

简述了50t转炉基础自动散装料系统的限位改造方法。该限位改造的成功，大大减少了限位的故障，满足了自动化炼钢的要求，保证了炼钢生产的正常进行。     

物料自动称量系统的结构设计

散装物料的称量存在不能正常落料、计量不准确等缺陷,设计简单实用的自动称量包装系统,主要包括流量可调的料仓组件、计量精确的称量组件、控制有效的推料机构。投运以来,系统运行稳定,计量准确,控制可靠,满足了生产要求。     

电子散料秤在码头散装物资商贸计量中的应用

首先简要介绍一种用于码头散装物资运输计量的高精度的计量系统——电子散料秤的工作原理、结构、功能特点,并将其性能与其它常用于散装物资计量的设备进行比较,然后给出了散料秤在湖北新冶钢有限公司200万t码头卸船和装船物资散装物料计量中的应用效果。     

电炉液压系统原理分析和故障处理

针对太原钢铁集团公司新投产的电炉在生产过程中设备出现的常见问题,对电炉液压系统的原理进行研究分析,详细讨论可能出现的典型故障和解决方法。     

散装料系统远程控制的设计与应用

原有的转炉散装料系统是纯手动操作,设计基于 PLC 系统的无人值守自动控制系统,将高频雷达物位计、高清监控和 RFID 定位技术有效组合,实现料位的准确连续检测和料仓的精确可靠定位,最终达到无人值守功能,从而提高企业的生产效率,减员增效。     

80 t电炉生产线冶炼系统信息化平台的设计

详细介绍了太重80 t电炉生产线冶炼系统信息化平台的设计思想和主要功能,主要包括ERP系统、MES系统、二级过程控制管理系统等子系统,并对一级基础自动化系统改造进行介绍,得出系统功能考核指标,对同行业冶炼系统信息化平台的设计进行指导与借鉴。     

云南锡业铜熔炼系统杂质元素走向研究

对云南锡业股份有限公司铜业分公司熔炼系统中Zn、Pb、As、Bi和Sb 5种主要杂质元素的走向统计分析。结果显示,Zn、Pb、A8、Bi、Sb主要来源于铜精矿,部分Sb来源于返料吹炼渣。产物中,Zn主要分布于沉降电炉渣和熔炼电场尘中,分别占72.34%、9.86%;Pb主要分布于冰铜、沉降电炉渣和熔炼电场尘中,分别占48.95%、24.22%、25.03%;A8主要分布于沉降电炉渣和熔炼电场尘中,分别占12.74%、69.65%;Bi主要从熔炼电场尘和沉降电炉渣中开路出去,分别占14.29%、51.90%;而60.77%的Sb分布于冰铜中,从沉降电炉和熔炼电场尘中开路出去的Sb分别占25.93%、11.00%。     

关于电记炼钢流程发展的几点认识

指出电炉炼钢流程是一类过程系统，据此对电炉炼钢流程及单元的进步给予了评述，并对我国电炉炼钢的现状和发展作了简要讨论。     

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.