柳钢轧钢加热炉烟气的监测分析

为了掌握柳钢轧钢加热炉的燃烧效果,并提高燃烧效率,利用烟气分析仪对轧钢加热炉的烟气进行了连续检测,发现大多数加热炉存在空气过量或煤气不完全燃烧现象。常规加热炉烟气的NOx含量较高,为轧钢加热炉的燃烧优化控制和改造提供了支持。     

蓄热式燃烧技术在中厚板轧钢厂的应用实践

介绍了高温空气蓄热式燃烧技术在中厚板轧钢厂2座加热炉上的应用情况。对采用不同蓄热体及燃烧方式的2座加热炉的实际效果进行了分析，总结了高温空气蓄热式燃烧技术的实践经验，为进行大型板坯加热炉蓄热式技术改造提供了依据。     

CSP加热炉空气过剩系数的检测分析及控制

通过对CSP加热炉炉膛烟气成分检测,分析了加热炉燃烧控制中的实际空气过剩系数与目标控制值之间存在较大偏差。通过调整加热炉燃烧空煤比,改善炉膛空气过剩系数,降低板坯氧化烧损率和燃耗。     

高温空气燃烧技术在加热炉上应用的探讨

结合蓄热式燃烧技术的运用,本文介绍了高温空气燃烧技术及其燃烧机理,从理论上研究了高炉煤气在高温空气燃烧技术的支持下应用于加热炉的燃烧特性,说明了高温空气燃烧技术在加热炉上的应用具有节能、环保等的多重效果。     

焦化炉燃烧工艺参数优化及性能评价研究

针对某炼油厂焦化装置加热炉存在的“排烟温度高”、“炉效低”等问题,采用CFD方法,对不同工况下加热炉内燃料气的燃烧情况进行了数值模拟,获得了空气系数、预热空气温度等燃烧过程操作参数对火焰形貌、炉内温度均匀性以及污染物生成的影响规律.在此基础上,综合分析燃烧、换热效率、烟气露点、污染物控制等因素,确定了该加热炉操作过程中最佳的空气系数与预热空气温度,并验证了所选参数的可行性.     

高温空气燃烧技术在加热炉上的应用

介绍了高温空气燃烧技术及其燃烧机理，结合钢铁企业的能源结构，从理论上研究了高炉煤气在高温空气燃烧技术的支持下应用于加热炉的燃烧特性，说明了高温空气燃烧技术在加热炉上的应用具有节能，环保等的多重效果。     

板坯蓄热式加热炉热诊断分析

通过对板坯蓄热式加热炉热平衡的测试,分析了加热炉热效率和燃料燃烧效率,确定了加热炉生产率、燃烧空气消耗系数和炉墙表面散热温度等因素对加热炉实际能量消耗的影响,提出了宽厚板蓄热式加热炉改进燃烧控制、强化炉墙隔热保温与炉内传热及提高钢坯热装率等节能措施与建议。     

宽厚板蓄热式加热炉热诊断分析

通过宽厚板蓄热式加热炉热平衡测试,分析了加热炉热效率和燃料燃烧效率．确定加热炉生产率、燃烧空气消耗系数、炉墙表面散热温度等因素对加热炉实际能量消耗的影响,提出宽厚板蓄热式加热炉改进燃烧控制、强化炉墙隔热保温与炉内传热、提高钢坯热装率等节能措施与建议。     

空气单蓄热式燃烧技术在武钢加热炉上的应用

介绍了国际先进水平的空气单蓄热式燃烧技术在武钢热轧1580miD_生产线1#加热炉上的使用情况,并将该炉和采用常规燃烧技术加热炉的运行实绩进行分析和比较。结果表明：1#炉采用的空气单蓄热式燃烧技术不但在安全性、稳定性和可靠性上都优于国内同类技术,而且在燃用中等发热值的混合煤气的加热炉上,与常规炉相比,具有较明显的节能减排优势。通过实际使用结果肯定了蓄热式燃烧技术在燃用混合煤气加热炉上的适用性。．     

冶金工业加热炉自动燃烧控制系统优化设计

针对加热炉燃烧系统中燃烧效率低、环境污染大的问题,设计了1套基于某钢铁企业自动控制系统的工业加热炉燃烧策略,针对加热炉燃烧控制中的主要参数:空煤配比系数、空气流量、煤气流量和残氧数据等,设计了利用高、焦炉煤气流量进行混合煤气热值计算的控制系统,从硬件和软件上对传统人工设定空煤配比系数的控制进行改进,并成功投入现场运行。运行跟踪效果表明,系统控制效果优良,有效改善了加热炉燃烧效率低下及环境污染大的问题。     

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.     

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.     

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)