声波清灰系统在烧结机机头电除尘器中的应用

主要介绍了声波清灰的技术特点以及声波清灰技术在宣钢炼铁厂的应用效果.     

声波清灰系统在电除尘器的应用及分析

分析了国内烧结、球团工艺电除尘器大多采用的顶部电磁振打和侧部摇臂锤振打两种机械振打方式的缺点。提出了采用声波清灰与机械振打相结合的方式以及单独使用声波清灰的方式,这两种方式具有提高除尘效率、降低烟粉尘排放浓度等优点,完全可以在电除尘器上推广应用。     

声波清灰器在烧结机头电除尘器中的应用

鞍钢炼铁总厂针对二烧烧结机机头电除尘器振打装置存在的问题，采用辽宁中鑫自动化仪表有限公司生产的声波清灰器作为辅助清灰器进行增效改造，取得了很好的效果。本文介绍了声波清灰的原理、特点、清灰系统的构成及使用效果。     

声波吹灰器在煤粉锅炉上的应用

声波吹灰器清灰彻底、操作简单方便、维护量小,克服了机械清灰不能彻底的先天不足,是锅炉吹灰技术的重大突破。介绍了声波吹灰器的工作原理、特性和2号锅炉声波吹灰器的安装、使用情况,取得了良好效果。     

声波清灰技术在高炉热风炉上的应用

为清除热风炉预热器内部积灰,采用声波清灰技术。声波清灰是指通过声波发生器,把高压气流调制成强声波,利用声场能量,清除和减缓换热器表面的积灰。通过调试测定,声压级选择150～160dB作为设定参数。该技术先进、性能可靠,使预热器内壁保持无灰尘堆积,达到空气与煤气的充分预热。     

一种组合式电除尘器振打装置

正专利号:ZL200620041182.8专利权人:上海梅山钢铁股份有限公司发明(设计)人:沈建国钱欣刘婕本实用新型涉及一种电除尘器,特别涉及一种组合式电除尘器振打装置。主要解决现有的电除尘器单纯性机械振打系统无论是侧部还是顶部电磁振打都存在一定的局限性,作用力无法对电场全面覆盖,主轴轴承没有自清灰能力易产生卡死的技术问题。本实用性的技术方案为:一种组合式电除尘器振打装置,包括声波发生器和阴、阳极机械振打机构,声波发生器在电除尘器顶部,     

烧结机机头静电除尘器声波清灰技术的应用

通过对安钢90m^2烧结机机头静电除尘器应用声波清灰技术,极板表面积灰增厚、极线肥大、贮灰仓棚仓问题得以解决,除尘器运行稳定,实现了烟尘达标排放。     

声波清灰器在静电除尘器上的应用

钢铁行业属制造加工行业,在生产过程中,环境保护一直是人们最为关注的问题.静电除尘器在钢铁企业的应用尤为广泛,其除尘效果较好.为此,本文就声波清灰器在静电除尘器上的应用进行了一些探讨.     

炉子清灰剂机理及应用

积灰结垢是各种炉子存在的普遍问题,它不仅引起能耗增加,且存在着各种不安全隐患,严重威胁安全生产,已引起各行业的高度重视.本文简述了炉子受热面积灰结垢的类型、成因,介绍了国内两类主要的清灰剂即氧化型、还原型清灰剂及其清灰机理,对实际应用情况及需注意的问题作了介绍.     

低频声波清灰装置在煤气加压机叶轮清灰中的应用

济钢高炉煤气经湿法除尘后煤气中部分粉尘附着于煤气加压机叶轮与机壳上,人工清理费时、费力,影响生产。为此,以氮气为气源,采用低频声波清灰装置可对加压机进行在线清灰,应用表明,加压机平均运行周期由30天延长至99天。     

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)