高炉煤气干式布袋除尘工艺设计的问题探讨

高炉煤气干法布袋除尘技术具有节水、节电、环保等优点。文章以越南550 m3高炉煤气布袋除尘工程设计为例,对高炉煤气干法布袋除尘技术进行了分析及探讨。     

高炉煤气布袋除尘技术的发展与展望

通过对中型高炉煤气布袋除尘系统的设计参数、技术要点、设备选型等问题进行分析,总结了中型高炉煤气全干式布袋除尘技术的应用情况.并对大型高炉采用全干式布袋除尘技术提出了一些设计思路,认为该技术在大型高炉上具有良好应用前景.     

全干式布袋除尘技术在韶钢2500 m3高炉的应用

对高炉煤气全干式布袋除尘技术在韶钢2500m^3高炉应用进行了总结，并对这项技术在大型高炉推广应用的相关问题进行了分析。认为，高炉煤气全干式布袋除尘技术在大型高炉推广中应重点解决系统可靠性、温度控制、设备质量等问题。     

韶钢750m^3高炉煤气全干式布袋除尘

介绍了国内外高炉煤气布袋除尘的发展及国内高炉煤气布袋除尘的技术现状，分析了国内高炉煤气布袋除尘存在的主要问题并提出了改进措施，同时对韶钢750m^3高炉煤气全干式布袋除尘系统作了详细介绍。     

大型高炉煤气干式布袋除尘技术研究

对高炉煤气干式布袋除尘技术的发展现状进行了总结,阐明了干式布袋除尘技术的工艺流程及低压脉冲喷吹干式布袋除尘技术的原理,重点阐述了研究开发的高炉煤气温度控制、煤气含尘量在线监测、煤气管道系统防腐及除尘灰浓相气力输送等关键技术.     

高炉煤气布袋除尘系统方案选择探讨

从除尘原理、结构方面对高炉煤气布袋除尘工艺中滤袋方式、滤袋选择、反吹方式、输灰方式等主要配置进行分析,指出高炉煤气布袋除尘应优先采用外滤氮气脉冲反吹,气力输灰的除尘方案。     

大中型高炉煤气全干式布袋除尘技术

介绍了煤气全干式布袋除尘技术及其在大中型高炉中的应用情况,对煤气全干式布袋除尘与湿法除尘的技术经济指标进行了比较,指出在大中型高炉煤气处理技术中,采用干法除尘代替湿法除尘具有明显的综合效益。     

高炉煤气脉冲布袋除尘技术的新进展

１９９５年度，高炉煤气脉冲布袋除尘技术在成钢２号高炉试验成功，成钢高炉应用实践表明，采用脉冲布袋除尘技术可提高煤气滤速５０％￣７０％，减少箱体数量１／３，效益显著。脉冲布袋除尘技术还面临着完善温度控制系统，寻求适用滤布以及推行设备标准化等任务。     

8号高炉除尘箱体设计分析

高炉煤气采用干法布袋除尘技术具有除尘效率高、投资省、占地面积少、减少二次污染等特点。柳钢自1994年4号高炉设计采用干法布袋除尘以来，逐步完成了全部高炉干法布袋除尘改造，并且使该项技术逐步得到进步、扩展、完善。以除尘箱而言，由最初的一座高     

鞍钢10~#高炉煤气系统的工程应用实践

鞍钢作为我国大型钢铁企业,不断进行技术改造和技术创新。鞍钢改造的高炉煤气除尘均采用干法布袋除尘和TRT工艺,环保和经济效益显著。阐述了具有典型意义的鞍钢10#高炉煤气系统的设计思路与投产效果。     

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.