铅电解残极洗刷设备研制与应用

指出原残极洗刷设备改造的必要性，介绍了水喷射技术洗刷的原理，主要设备的设计选择和运行效果。     

铅电解极洗刷设备研制与生产应用

铅电解残极洗刷设备是工艺流程中一道非常重要的装备，对产品质量，能源消耗、稀贵金属回收都起着至关重要的影响。该套新研制的设备具有独特地创新点，在原有的机械往复式、直立毛刷洗涤的基本上，采用了水喷射技术，自控技术，并结合变频器、可编程控制器等自控元器件，使整套系统实现了自动智能运行。很好地解决了铅电解残极洗刷完全、清冼干净这一生产难题，并取得较好的经济。     

铅电解残极自动洗刷加锅装备的研发

采用传统的卧式洗片机对铅电解后的阳极残极进行洗刷,不但劳动强度大,工作量多,安全隐患多,而且环境污染问题大;通过自主研发,采用单片残极自动洗刷与连续加锅工艺技术,可彻底解决这些难题。本文介绍了铅电解残极自动洗刷与连续加锅工艺装备的试验与研发。该装备投入应用后,不仅有效地提高了金银直收率,而且自动化程度高,能有效解决残极加锅时产生的环境问题,在行业内有较高的推广应用价值。     

高锑铅残极烘干装置的开发设计研究

铅电解高锑残极因含锑较高致使阳极泥结构致密、坚硬，采用现有常用的残极洗刷机组难以洗刷下来，目前只能采用人工铲泥方式。文章主要介绍了广西某有色公司研制的利用公司余热锅炉所产的余热蒸汽和电解工序高温烟气作为热源，采用高锑铅残极烘干回收阳极泥工艺和装置，以达到高锑残极烘干的阳极泥经敲打自动脱落回收。按年产5 000 t锑金属计算，与人工铲泥回收阳极泥工艺相比，年可节约成本85万元。该工艺为国内首创，研究成果的应用，利于清洁生产，可以利用二次能源，降低能源消耗，提高阳极泥冶炼回收率，对环境更友好，成果应用前景广阔。     

转炉横孔氧枪洗刷炉渣的应用实践

结合炉衬砌筑图纸和现场炉壁测厚仪测量的实时炉衬厚度,对横孔氧枪的参数进行设计,制造出一套专门洗刷炉渣淤积的横孔氧枪设备。利用氧气点火原理,通过改变对氧气射流方向,使得氧气射流从侧面方向冲击出去,对淤积部位的炉渣进行快速精准地洗刷。实践证明,该方法既节约了非生产时间,又使转炉炉型得到了合理维护。     

浅论降低铅电解精炼直流电耗的有效措施

分析了槽电压和电流效率对铅电解直流电耗的影响因素,提出了控制合适的电解液酸铅比、提高电解液温度及循环速度、添加合适添加剂、加强阳极泥洗刷等来降低铅电解直流电耗的有效措施.     

衬铅、搪铅工艺技术

本文介绍了衬铅、搪铅的工艺方法以及与其相关的设备制造质量标准、设备表面处理方法和衬里质量检验方法,从而为防腐工程提供了一项实用、有效的技术,具有一定的参考价值。     

补铅,搪铅工艺技术

本文介绍了衬铅、搪铅的工艺方法以及与其相关的设备制造质量标准、设备表面处理方法和衬里质量检验方法，从而为防腐工程提供了一项实用、有效的技术，具有一定的参考价值。     

积极采用新技术新设备不断提高装备技术水平

本文介绍了铅冶金分厂近年来利用设备大修理，设备零星购置和环保治理项目等，有限的资金积极采用复合树脂衬里材料，耐腐蚀液下式四氟乙烯管束式热交换器等新技术新设备，提高了电解系统的装置技术水平，对节能降耗提高经济效益，减轻工人劳动强度，防止环境污染等方面具有十分明显的成效。     

我国电铅生产装备大型化的思考

分析我国电铅生产装备的现状和存在的问题,指出我国电铅生产设备大型化应注意的问题,论证了电铅生产装备大型化的关键是铅阳极板的大型化。     

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.     

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。     

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.