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1.
对九钢4#1780m~3高炉大修停炉操作实践进行了分析,停炉采取前期回收煤气,料线降至炉身下部之后不回收煤气,降料面至风口带的方法,基本达到了预期的目的,实现了安全顺利停炉。  相似文献   

2.
对淮钢4#高炉停炉操作进行总结,这次停炉采用半回收煤气空料线打水停炉,实现安全顺利停炉,料面降到预期目标。  相似文献   

3.
济钢3号1750m~3高炉在停炉过程中,采用空料线煤气回收法,实现了安全、顺利、快速停炉。  相似文献   

4.
文章对2015年7月八钢B高炉空料线停炉操作进行了总结。通过前期制定计划降料面深度,停炉时间控制,预休风时间控制,煤气回收方式,预休风时间控制等停炉方案,实现了安全、顺利、快速停炉,减少了煤气外排时间。  相似文献   

5.
对邯钢4#高炉大修停炉操作实践进行了分析,采用回收煤气空料线停炉,料面降至风口带以下的方法,基本达到了预期的目的,实现了安全顺利停炉.  相似文献   

6.
李文斌 《山西冶金》2021,44(3):149-151,182
梅钢二号高炉中修停炉更换五、六段冷却壁时采用了降料线打水回收煤气的方法.通过控制炉顶温度、煤气中H2和O2含量、炉内通氮气等措施做到了安全停炉,全程无爆震.计算了停炉料和停炉过程中料线的位置,保证了整个停炉过程按计划进行,使得料线顺利降到风口以下,为后续的恢复性改造施工创造了有利条件.  相似文献   

7.
《炼铁》2014,(1)
对本钢5号高炉控料线停炉操作实践进行了总结,通过制订周密方案,采用煤气回收法、炉顶打水、将料面降到炉缸风口区,实现了安全、顺利停炉。  相似文献   

8.
储滨  张振伟  唐培华  凌丹 《炼铁》2011,30(3):46-48
对宝钢不锈钢2号高炉空料线停炉操作实践进行了总结。通过制订周密方案,采用全程回收煤气、炉顶打水,将料面降到炉腰中部,实现了安全、顺利、快速停炉。  相似文献   

9.
鞍钢新2号高炉降料面停炉生产实践   总被引:1,自引:0,他引:1  
为了实现鞍钢新2号高炉安全、快速停炉,通过采取炉顶打水、控料线、回收煤气等停炉方案,使降料面过程中各项操作参数得到了合理控制,维持了炉况的稳定顺行,顺利将料面降至炉缸风口区域以下。  相似文献   

10.
对天铁4#高炉停炉操作进行了分析总结。采用正常料线停炉,以焦炭与焦丁填充风口以上部位,后期带风放残铁,整个过程煤气全部回收,实现了安全、快速、顺利停炉,确保了能源回收,减少了噪音和环境污染。  相似文献   

11.
转炉炉壳热应力分析   总被引:5,自引:1,他引:4  
任学平  郭志强  邹家祥 《炼钢》2001,17(6):47-49
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。  相似文献   

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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。  相似文献   

14.
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.  相似文献   

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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)  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

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