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1.
介绍了高炉冲渣水的特点和目前高炉冲渣水余热利用的主要方式,分析了不同类型的高炉冲渣水余热利用方式的优缺点,投资回收期对比。最后通过钢铁厂高炉冲渣水余热利用案例,分析了投资、效益等,为钢铁企业利用高炉冲渣水余热提供参考意见。  相似文献   

2.
天铁集团对高炉冲渣水系统进行改造,将高炉冲渣水的余热用于冬季供暖,取得了很好的余热利用节约能源的效果。  相似文献   

3.
概述了目前高炉冲渣水余热利用的现状和存在的问题。根据高炉冲渣水余热的特点,进行了详细的能源诊断和理论分析计算,并进行了小规模的试验研究。通过理论计算和试验研究的对比,验证了高炉冲渣余热回收的可行性,获得了第一手的试验数据,为后期高炉冲渣余热回收和低品质蒸汽的回收奠定了基础。  相似文献   

4.
介绍了高炉冲渣水余热系统及换热器控制逻辑,对高炉冲渣水余热回收系统存在的问题进行了分析,提出了解决策略,为同类企业高炉冲渣水余热综合应用提供参考。  相似文献   

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介绍了唐山长城钢铁集团九江线材有限公司利用高炉冲渣水换热的措施,分析了实施高炉冲渣水余热采暖技术取得的效果.  相似文献   

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介绍了目前我国高炉冲渣水余热利用新技术以及存在的问题,对双工质发电技术和冲渣水直接温差发电这两项技术进行了研究分析.  相似文献   

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针对高炉冲渣水蕴含的余热资源尚未利用的情况,通过综合计算分析和负荷测算,采用先进、专有的高炉冲渣水专用过滤器和冲渣水专用板式换热器等余热回收装置回收9号高炉的冲渣水余热,并应用于居民取暖。实现了换热温差基本保持在5℃以内,换热效果显著,供水温度60~66℃,保证了居民的正常采暖,且其过滤及阻垢系统运行效果较好。产生了巨大的经济效益和社会效益。  相似文献   

8.
高炉冲渣水余热采暖的应用   总被引:2,自引:0,他引:2  
臧传宝 《山东冶金》2003,25(1):22-23
将高炉冲渣水进行分级过滤。沉淀,利用冲渣水的余热,建立了高炉冲渣水余热供热系统,该系统投资少,见效快,设备简单,热能利用高,既节约了能源,又降低了消耗,有效地解决了职工冬季采暖的问题,5年创效益958.8万元。  相似文献   

9.
介绍了一种利用低温冲渣水进行余热回收的技术在大型高炉的实践,实现了冲渣水全水量满负荷取热,最大限度回收冲渣水余热创造了条件。为钢铁企业周边城市建筑采暖开辟了有效的环保热源。  相似文献   

10.
文章结合国内多家钢铁企业已有的经验,分析了高炉冲渣水余热回收技术的现状,探讨了高炉冲渣水余热回收技术的发展趋势,为钢铁企业在开展该项工作时提供参考。  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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