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1.
介绍Φ4.5m×100m氧化铝熟料窑烘干带内衬结构的改造实践。改造后节约能耗,提高熟料窑的产能,缩短检修工期,降低熟料窑的检修费用。  相似文献   

2.
文章介绍了中铝山西分公司氧化铝熟料窑窑体内衬存在的问题,从熟料窑内衬损坏机理进行分析,提出了内衬改进方案。  相似文献   

3.
分析氧化铝熟料窑烧成带的特点及抗剥落高铝砖的性能,介绍了熟料窑烧成带所选用的抗剥落高铝砖耐火内衬情况。  相似文献   

4.
介绍氧化铝生产用熟料窑系统设备的特点,结合工作实践阐述了几年来熟料窑系统设备管理方面开展的工作,总结了取得的成绩。  相似文献   

5.
本文对中国铝业中州分公司氧化铝工艺能耗情况进行了简要介绍,阐述了采用熟料窑自动控制、熟料窑密封改造、窑的三通道喷煤管技术、间接加热脱硅、常压脱硅、管式降膜蒸发器以及强化烧结法的新技术和新工艺,使得氧化铝的工艺能耗大幅下降的具体做法。  相似文献   

6.
氧化铝熟料窑是用于氧化铝熟料烧成的回转窑。目前国内共有25台分布在大小5家氧化铝厂,由于各企业的生产条件不同,回转窑的规格也不尽相同。由于氧化铝生产工艺要求氧化铝熟料必需缓慢冷却,因此所有氧化铝熟料窑都采用回转式冷却机,传统的冷却机内衬及淋水冷却装置见图1。  相似文献   

7.
张洁  肖刚 《铝镁通讯》2006,(2):14-15
本文详细介绍了目前氧化铝熟料窑及单筒冷却机内村砌筑工艺,分析了内村砌筑过程中带来的问题及存在的隐患。介绍了一种简单易行的不转窑砌筑氧化铝熟料窑及单筒冷却机内村砌筑工艺。并对施工中所用工器具的设计进行了详细说明,目前已经开发了具有一定自动化程度的机械专用模板。  相似文献   

8.
介绍了中铝山西分公司氧化铝熟料窑窑体内衬生产中存在的问题,分析了内衬损坏机理,提出了改进方案.  相似文献   

9.
介绍了中铝山西分公司氧化铝熟料窑窑体内衬生产中存在的问题,分析了内衬损坏机理,提出了改进方案。  相似文献   

10.
针对氧化铝熟料窑传统静电除尘器已不能满足国家日益提高的环保标准这一问题,进行了氧化铝熟料窑袋式除尘器的开发与应用课题研究。对氧化铝熟料窑窑尾烟气的风量、含尘浓度、温度进行测定;收集熟料窑窑尾现有的静电除尘器、排风机等运行参数,以及窑灰成分等基础资料,确定技术方案,设计工艺流程。工业试验证明,袋式除尘器不仅可以取代静电除尘器,而且如果短路旋风收尘器,将袋式除尘器直接与立烟道连接,将会取得更好的效果。  相似文献   

11.
12.
The purpose of this study was to verify a model of relationships between psychosocial factors and health for 8066 francophone nurses working in geriatric care in Québec. A random sample of 1990 subjects was drawn and a participation rate of 77.9% and 55% was obtained for the two-time study taken twelve months apart. Based on the theory of Maddi and Kobasa (1984), the model was reproduced for the two-time periods with the aid of structural equations. The analyses showed that three variables exert a direct influence on psychological distress: professional burnout, occupational stressors and hardiness. Also, variables have a direct effect on burnout: listed in order of importance, these are hardiness, occupational stressors, work support, active strategies of coping and employment status. In dealing with the work stressors, the nurses who are hardy make use of active strategies of coping and look for support form their colleagues. The results of the study help to better understand the psychological and social resources that best favor adaptation of working women in highly demanding work environments. The fallout of the study converges towards the quality of life of helping professionals and towards the cost and quality of health and social services.  相似文献   

13.
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   

14.
广西平果铝土矿属岩溶堆积型铝土矿,其矿体的形成、规模、含矿率、矿石质量与沉积铝土矿层、岩溶洼地大小、矿源层的所处位置、地形地貌关系密切。文章对该矿床的成矿过程、控矿因素及富集特点进行了阐述,对矿床的赋存层位及含矿层的特征等方面进行了分析,为该类矿床的地质工作提供参考。  相似文献   

15.
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   

16.
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   

17.
Investigated whether self-ratings of ability can be used as substitutes for ability tests in an industrial setting. 114 undergraduates first completed a questionnaire asking them to rate themselves on 10 ability areas. The Ss were then given a battery of tests designed to test these same ability areas. Tests included the Employee Aptitude Survey Test of Visual Pursuit and Manual Speed and Accuracy, the Revised Minnesota Paper Forms Board Test, Personnel Tests for Industry—Verbal and Numerical, the Otis Self-Administering Tests of Mental Ability, and the Bennett Mechanical Comprehension Test. In addition, the potential moderator effects of sex, general intelligence, self-esteem, and social desirability were investigated. Correlations between self-rated and tested abilities, although generally significant, were too small to have any practical significance. The self-ratings were also unable to diffentiate between those who would score high and low on the ability tests, even for extreme self-rated groups. No moderator effects were found. It is concluded that self-reports of ability could not substitute for ability tests. (16 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

18.
The author has created a foundation, acknowledged as being of public benefit, whose purpose is to set up a "Museum of the Hand of Man", conceived as a coordination and research center on the hand. An attempt at systematizing a prefiguration of this institution is proposed, with five subsectors: the original of this institution is proposed, with five subsectors: the original hand, the experienced hand, the hand and culture, the hand and society, and the hand as a symbol. In addition, a collection of publications on these various aspects of the hand is projected.  相似文献   

19.
Compared 292 undergraduates' reports of their parents' and grandparents' histories of 6 medical disorders (atherosclerosis, heart attack, hypertension, kidney disease, migraine headaches, and stroke) with the parents' reports. Ss also completed measures assessing frequency of contact with parents, comfort in discussing health matters with parents, and importance of health to Ss; Rotter's Internal–External Locus of Control Scale; and the Health Locus of Control Scale. Results show moderate agreement concerning the parents' health, especially when reports were negative, but substantial disagreement concerning the grandparents' health. Demographic and personality variables did not predict accuracy of Ss' reports of parental hypertension, the most frequently reported disorder. Among the disorders, differences in agreement of reporting arose; the most salient condition, heart attack, had the highest agreement for both parents and grandparents. Results suggest that caution is necessary in evaluating family health information from Ss in research and from target individuals in prevention programs. (45 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

20.
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   

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