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1.
介绍了新疆八钢转炉炼钢厂连铸系统中间罐车本体原地改造方案的实施,既满足了连铸机升级改造的需要,又降低了工程造价,简化了施工工艺,缩短了工期,达到了工程创新的效果。  相似文献   

2.
介绍了新疆八钢转炉炼钢厂2#连铸机的改造,连铸机采用的新设备和新技术的特点.  相似文献   

3.
介绍八钢炼铁厂2~#高炉扩容改造工程概况及施工中实行的工程承包,加强管理,控制工程进度,确保质量安全。为高炉大修改造缩短工期,提高投资效益积累了经验。  相似文献   

4.
济钢210 t转炉炼钢工程铁水倒罐坑实施改造,倒罐坑深基础施工支护采用钢筋混凝土灌注桩+H型钢连系梁+对顶支撑的复合支护形式,在没有影响铁路运输正常运行的情况下,基坑支护成功。  相似文献   

5.
转炉连铸循环水处理设计论述   总被引:1,自引:0,他引:1  
就马钢一钢厂平炉改造工程新建转炉、板坯以及圆坯系统,论述转炉、连铸循环水处理工艺并对水处理设施和主要构筑物的设计进行总结。  相似文献   

6.
技术信息     
《钢铁》2003,38(4)
·国内·太钢 K- OBM- S转炉不锈钢热复合试车成功SUCCESSFUL HOT COMMISSIONING OFK- OBM- S ROUTE FOR STAINL ESS STEELAT TAIYUAN STEEL2 0 0 2年 12月 13日 ,太钢不锈钢系统改造工程中二钢 1号转炉 K- OBM- S改造进行了不锈钢的热复合试车 ,成功地试炼了 42 0、410、3 0 4三个品种的不锈钢 ,形成了铁水预处理—转炉复合吹炼—炉外精炼—连铸机的现代化生产工艺路线。太钢不锈钢系统改造后 ,二钢工艺装备将达到世界先进水平 ,具备年产 2 3 5万 t转炉钢 ,2 3 5万 t连铸坯的生产能力 ,达到铁水全脱硫、钢…  相似文献   

7.
2008年11月10日8时56分,梅钢公司炼钢技改工程3号转炉顺利点火投产。该转炉在建设过程中克服了时间紧、任务重、施工难度大等一系列困难,总施工工期由原定的16个月缩减为10个月,投产后的梅钢3号转炉将主要生产优质碳素结构钢、镀锡板钢、专用钢等五大类产品,为梅钢公司今后更好  相似文献   

8.
魏强 《甘肃冶金》2015,(3):8-11
钢铁行业已进入微利时代,各钢铁企业都在通过增加产能和品种钢开发来寻求突破,首钢长钢公司针对性地实施了65 t转炉大修改造工程。本文从转炉技术更新与利旧改造等方面进行了多因素分析后,进行了集约化改造设计,并对改造后的冶金效果进行了全面的总结分析。  相似文献   

9.
文章介绍了八钢炼钢厂120t转炉通过现场改进,将原挡渣棒挡渣方式改为滑板挡渣。120t转炉滑板挡渣装置与PLC红外下渣检测装置结合,实行滑板挡渣,在八钢2#转炉和3#转炉首先进行应用,取得良好效果。  相似文献   

10.
为了加快80 t不锈钢GOR底吹转炉的出渣、出钢节奏,缩短冶炼时间,提高单位产量,并提升产品质量,对转炉系统的炉壳及钢包车进行了工艺设备升级改造。将炉壳的炉帽改为活动炉帽及炉口出渣、出钢,钢包车改为带液压倾翻的钢包倾翻车。设备投入使用后,效果良好,经济效益明显。  相似文献   

11.
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   

12.
The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.  相似文献   

13.
鲁迅先生一生热爱美术作品,对版画中木刻兴趣尤甚.<野草>作为其"写心之作",亦呈现出一些与木刻版画一致的审美特征:一是具有木刻版画的色彩特征,多对比、多冷色,有阴郁的美感;二是具有木刻版画的力度特征,环境描写、人物刻画处处刀锋毕现,遒劲有力,有一种"力之美".  相似文献   

14.
张兴强  叶运福 《冶金设备》2005,(6):71-72,47
针对四辊破碎机车刀架车削中存在的几个问题,详细介绍了电动车刀架的结构和工作原理,建立主要设计参数的数学表达式,并进行适当的分析。改造后,这种电动车刀架运行平稳、可靠、方便、省力,取得了预期的效果。  相似文献   

15.
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   

16.
In this paper is treated the fundamental problematic of the fracture of the diaphysis of the tibia and the therapeutic results after the conservative and operative treatment are confronted. Among 518 patients with 433 open fractures and 35 with closed fractures of the diaphysis of the tibia, successful treatment of more 2/3 was obtained in the period from 1968 to 1972. Following our casuistics and literature, whose results are similar, we find out that the average total treatment of the osteosynthesis of the fracture of the diaphysis was shortened for 2,5 months depending upon the type and the localisation of the fracture. Apolied methods of the operative and conservative and conservative treatment in relation to the velocity of the medical cure as well as to the extreme anatomical-functional results are analised. We noticed that osteosynthesis, made by the intermedullary nail and the extension of the canals or by a small AO table, by the achieved stability makes conditions of immediate motions and an early rehabilitation. Because of that it gives the best functional results.  相似文献   

17.
18.
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   

19.
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   

20.
为了编制实用性强的基地建设行动方案,首先,确定参与式发展的主体,搭建一个"决策框架";其次,针对行动目标,提出不同参与主体,如管理者、农民、消费者等团队与个人的目标及行动内容;最后,工作应向重塑伙伴式合作关系,挖掘农民自我发展潜力,完成三大角色的转换,打造农业基地文化等方向推进.  相似文献   

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