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1.
李永祥  倪立 《炼铁》2007,26(6):28-30
梅钢现役3座高炉炉缸全部采用法国陶瓷杯,其中1、3号高炉至今已连续生产近10年和12年,单位炉容产铁分别达到7150t/m3和8700t/m3,超过第二代高炉一代炉龄单位炉容产铁7022t/m3的最好水平.采取加V-Ti矿护炉、调整送风参数、适当降低冶炼强度、加强监控等措施后,炉缸冷却壁热流强度稳定,寿命有望达到15年  相似文献   

2.
通钢4号高炉(350m~3)1993年10月30日建成投产,采用自焙小炭块与自然风冷相结合的炉底结构。1997年10月4~27日停炉中修,更换炉顶设备和全部镶砖冷却壁。1999年5月因炉底温度高,在不休风的情况下将风冷改为水冷。2002年9月9日停炉大修,一代炉役8.79年,共产生铁267.4万t,单位炉容产铁7640.9t/m~3,高炉平均利用  相似文献   

3.
部钢片高炉(305m3)从1987年9月7日投产,到1997年元月5日安全停炉,连续生产了112月,累计产铁188.1万t,每m3炉容产铁6168t,远远超过冶金部长寿高炉每m3炉窑产铁5000t目标。这样的炉龄不但韶钢前所未有,在全国同类型高炉也是少见。据了解,该炉由广东省冶金设计院设计、韶钢修建部负责施工。韶钢一号高炉创国内领先水平@李世灵  相似文献   

4.
现代薄壁高炉的特征   总被引:2,自引:0,他引:2  
银汉 《炼铁》2001,20(2):7-10
现代薄壁高炉采用全冷却壁、薄壁炉衬、操作炉型和软水冷却系统,保持炉型、炉衬、炉壳稳定,设计炉龄可达15年以上,单位炉容产铁可达10000t/m^3。  相似文献   

5.
单洎华  王颖生 《首钢科技》2002,(6):23-28,32
首钢2号高炉于2002年3月6日停炉大修,本代炉役为10年9个月,炉容产铁8277t/m^3,炉缸采用NMA砖砌筑是高炉既高产又长寿的主要原因。  相似文献   

6.
1 引言 新钢7号高炉有效容积600m~3,1993年9月28日建成投产,到2002年2月6日,共产生铁3052801t,单位炉容产铁5088t╱m~3。其间在1998年12月3~18日和2001年9月18~30日分别进行了恢复性小修和简易中修,主要是更换大、小钟等炉顶设备,2001年中修时对炉身部分砖衬重新砌  相似文献   

7.
梁世标 《炼铁》1997,16(6):10-13
韶钢1号高炉(第二代)从1987年9月开炉到1997年1月停炉,连续生产了9年零4个月,单位炉容产铁6167.8t/m^3,达到了冶金部制定的长寿标准,该高炉主要的长寿措施是改善入炉料质量,加强高炉操作,稳定炉况、预防结瘤,加强炉役后期的操作和管理。  相似文献   

8.
梅钢3号高炉处于炉役后期,单位炉容产铁逾8200t,炉缸铁口、残铁口等局部区域光面冷却壁水温差和热流强度异常升高,给高炉的生产组织、铁口操作与维护带来困难。对梅钢目前炉役后期铁口的状况进行了针对性地分析,旨在探讨炉役后期铁口操作和维护的有效方法,达到持续、有效地维护铁口冷却壁直至安全停炉。  相似文献   

9.
陶中明 《炼铁》2006,25(3):46-48
梅山3号高炉于1995年12月15日投产,已连续生产逾9年,单位炉容产铁超过7086t/m^3,已达到长寿高炉标准。现炉缸冷却壁热流强度正常,但炉身冷却设备破损严重,以致于长期保持10~20块左右的炉身坏水箱无法更换,操作炉型维护艰难,煤气流分布难于控制,难以维持炉况长期稳定顺行,对生产和操作造成较大影响。  相似文献   

10.
德蓉 《钢铁》2004,39(10):5-5
2004年截止到8月28日,宝钢股份投产13年的2号高炉累计产铁量达到4063万t,单位炉容产铁量突破万吨大关,创造了国内高炉长寿新纪录,跻身世界高效长寿高炉行列,宝钢2号高炉是首次由中国自行设计、建设、开炉的4000m^3级特大型高炉,炉容为4063m^3,国产化率达90%以上。该炉投产11个月各项指标均达到标准,其后创造了日吨铁工序能耗372.79kg标准煤的世界先进水平。  相似文献   

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During the course of a year, there are many healthcare workers nationwide who sustain sharps injuries whilst carrying out their duties. Staff who work in the Accident and Emergency (A & E) units are no different from anyone else in this respect. The emotional cost of such an accident cannot be calculated, whereas the financial costs can. This article aims to show how the cost of an injury to a member of staff can be calculated, thus allowing a manager to assess the financial implications of sharps injuries to their department. In the absence of access to an Occupational Health (OH) department, most A & E units have to respond to sharps injuries to healthcare workers in the hospital. This task must be attended to by the medical staff as well as the nursing staff of the A & E unit. Within the following text the appropriate responses and methods to ensure uniformity of response are discussed. The tables and the calculation figures shown are taken directly from the information held in the St James's University Hospital Trust's OH department. All calculations are based on the middle band of the salary scale for each discipline. Accurate costings for each member of staff injured cannot be shown in this article, but the general principle is laid down and can be easily followed for any situation.  相似文献   

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The concept of blood-brain barrier (bbb) arose in the beginning of the 20th century after report that the dyes injected intravenously did not appear in the brain. The idea and definition of bbb has been changed many times since then. We present current opinion concerning bbb, its histology, embryology, ultrastructure and function on the ground of a review of the recent literature.  相似文献   

15.
Presents the program for the C.P.A. Institute entitled "The Role of Counseling Services on the Contemporary Campus." The Institute was held on June 2-3, 1969. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Rats, Man . . .     
Comments on the article by Richter entitled "Rats, Man, and the Welfare State" (see record 1960-02810-001). The commenter notes that in his article Richter did not indicate how hereditary and environmental factors were controlled. In comparing the hereditary survival characteristics of wild versus domesticated rats, it would be essential that the environmental influences on the survival characteristics of the wild rats should be ruled out. Another factor to be considered is that the wild state may offer a diet and other environmental influences, which in the life of a single individual would produce organic changes, accounting for some of the differences between wild and domestic rats. It would seem that the most effective way to determine the hereditary differences between wild and domestic rats would be to create a wild group, composed solely of the offspring of wild rats. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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C.A.T. scans     
With the rapidly mounting cost of medical care in hospitals, physicians must seek alternative forms of therapy for illnesses that could conceivably be treated by less confining methods. One appraoch to this problem is the Psoriasis Day Care Center, where psoriasis patients with extensive disease are treated during the day and allowed to return home at night. The advantages include reduced cost, accessibility for more patients, and superior therapeutic results. This day care center concept could be equally applicable to other diseases now routinely treated by complete hospitalization.  相似文献   

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