八钢1#COREX炉顶煤气喷雾降温系统特点

文章介绍了八钢1#COREX工程顶煤气干法除尘改造项目.为配合干法除尘工艺顺利实施,在竖炉顶部及重力除尘器中部加装两套雾化打水装置,以满足COREX竖炉顶煤气降温需求.主要介绍顶煤气喷雾降温系统主要技术性能及应用.     

煤气干法除尘技术在八钢欧冶炉的应用

煤气布袋除尘技术可以显著降低炼铁生产过程的新水消耗、减少环境污染,已成为炼铁技术煤气净化处理的方向。八钢欧冶炉非高炉炼铁工艺使用干法布袋除尘设备进行煤气净化。文章就欧冶炉煤气干法除尘技术的应用实践进行了分析。     

高炉煤气余压发电(TRT)干法运行研究

随着高炉煤气干法除尘净化技术的不断成熟和干法运行带来的效益的提升,建设干法除尘越来越受到铁厂的青睐。2009年太钢也对4350 m3高炉煤气除尘系统进行改造,并于8月投产。煤气余压透平发电(TRT)机组也进行必要的改造,并同时实现干法运行。     

欧冶炉煤气管网及放散系统安全运行分析

八钢煤气能源管网系统增加了欧冶炉煤气,对煤气管网压力平衡控制提出了新的要求。对八钢欧冶炉煤气管网及放散系统安全隐患进行了分析,通过优化改进,为欧冶炉系统的安全稳定运行提供了保障。     

南钢1#高炉煤气湿法改干法除尘及TRT改造实践

介绍了南钢1#高炉(2000m3)煤气湿法除尘改干法除尘及TRT发电系统改造的方案、主体设备、主要技术参数及取得的节能效果、经济效益。     

太钢5号高炉煤气净化系统的改造

从节能减排的角度,对太钢5号高炉煤气净化系统的改造进行了阐述.太钢5号高炉煤气净化系统增设干法除尘改造投产后,提高了净煤气纯度,降低了净煤气粉尘含量;提高了TRT入口净煤气的温度,增加了TRT的发电量;节约了工业循环水.     

鞍钢10~#高炉煤气系统的工程应用实践

鞍钢作为我国大型钢铁企业,不断进行技术改造和技术创新。鞍钢改造的高炉煤气除尘均采用干法布袋除尘和TRT工艺,环保和经济效益显著。阐述了具有典型意义的鞍钢10#高炉煤气系统的设计思路与投产效果。     

韶钢高炉煤气全干式余压透平发电的设计与应用

1前言广东韶钢7#高炉(2500 m3)2005年8月建成投产,高炉煤气除尘系统采用干法布袋除尘工艺,煤气全干式余压透平发电机组(TRT)与高炉同步建设,2005年10月正式并网发电;经过近8个月的运行表明,TRT装置的各项运行指标均正常,符合设计要求。2煤气系统工艺流程和主要工艺参数2.1工艺流程高炉产生的荒煤气经重力除尘器的粗除尘,进入布袋除尘器进行精除尘,然后进入TRT透平机膨胀做功发电,自TRT低压侧出来的煤气进入厂区高炉煤气主管网,煤气调压阀组及消音器与TRT并联布置;工艺流程示意见图1。重力除尘器布除尘袋器TRT装置切断装置净管煤网气…     

济钢1750m^3高炉煤气干、湿法除尘比较

济钢1750m3高炉煤气干法除尘与湿法洗涤系统在工艺过程、动力消耗、TRT发电量、物料消耗、煤气质量等方面进行了比较分析,表明干法除尘具有节水、节电、减污、可靠性好的工艺特点,更具有加强能源回收,提高发电量,提高煤气热值,减少占地面积,保护环境的经济效益、社会效益和环境效益。     

高炉煤气干法布袋除尘系统低温运行方式研究

高炉煤气干法布袋除尘系统是净化高炉煤气的先进设备。针对干法布袋系统运行率低,高炉灰板结,筒体锥部和输灰系统堵塞等问题,通过对干法布袋除尘系统运行方式的研究,优化了输灰工艺,有效预防了输灰管堵塞,提高了布袋运行率,增加了TRT发电量。     

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)     

Comparison of rates of infection of two methods of emergency ventricular drainage

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.     

浅析《野草》的版画特征

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".     

四辊破碎机车刀架的改造

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。     

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。     

Comparison of the results of surgical and conservative treatment of fractures of the diaphysis of the tibia

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.     

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.     

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。     

参与式农业基地建设行动方案设计

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.