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1.
一、问题我公司水泥生产线煤磨系统煤磨规格为φ2.2×4.4m风扫磨,工艺流程如图1,原采用二级除尘,单筒旋风收尘器,规格为QMC_(120)-(Ⅱ)型,布袋收尘器,规格为LF×(Ⅱ)/M_4-75;由于我公司入厂原煤为水洗煤,煤水份在10%左右,煤磨热风来源篦冷机  相似文献   

2.
水泥厂的除尘器主要有电收尘器和袋式除尘器,本文就煤粉制备系统袋除尘器进行一下简单的研究。首先从袋除尘器的类型、处理风量、过滤风速、过滤面积及规格的确定五个方面介绍了水泥厂煤磨袋除尘器的选型方法,然后从煤磨袋除尘器的推广应用情况和部分典型应用业绩两个方面对水泥厂除尘器的应用进行了简要的阐释。  相似文献   

3.
目前,不断增长的人口数量与日趋贫乏的资源总量之间的矛盾越来越紧张,如何进行节能减排是各个企业所面临的重要问题。文章从水泥磨收尘器系统运行工艺参数及存在的问题、对这一问题的应对措施以及所收到的实际效果等几个问题出发,对水泥磨收尘器技术的改造进行探究。  相似文献   

4.
介绍我厂130t/h循环流化床锅炉后置ppc袋收尘器在投运过程中所遇到的问题及解决的方法.  相似文献   

5.
对于老水泥圆库的收尘改造,在搞好密封的同时设法两两相连,用一台小型收尘器即可实现废气和粉尘的收集功能,并与送料设备电气联锁,最大限度节约能耗成本.  相似文献   

6.
传统的水泥生产工艺为"两磨一烧",其中水泥磨制是水泥的制成的最后一道工序,通常为各种物料共同入球磨机粉磨,最终制成水泥产品,以该工艺生产低热矿渣水泥,困难重重。水泥制成阶段是生产低热矿渣水泥的关键,要生产出低水化热、高强度的水泥,需要有非常好的生产技术,严格的控制过程。而采用"分别粉磨""勾兑配制"生产低热矿渣水泥,可以有效地解决传统共同粉磨难以解决的问题,同时节约了大量的成本和生产调整时间。  相似文献   

7.
从有关部门获悉,国家建材局修订《水泥包装用袋国家标准》,提出水泥包装新要求,以使水泥包装更加趋于科学、经济、适用的原则。 一、从现在起停止使用无复膜塑编布内套纸袋纸制成的水泥袋。因为塑编布漏灰,不防潮,容易引起水泥风化,强度下降以及水泥漏失。 二、各种水泥包装复合袋的内衬纸,必须使用标准纸袋纸,不得使用再生纸。 三、水泥纸袋必须由四层以上标准纸袋纸制成,“三标一再”水泥纸袋停止生产。 四、取消复合袋适用温度120℃这一档次,制定新的水泥最高灌装温度标准。 五、糊口袋与缝口袋相比具有较好的力学性能,是今后发展和提倡的袋型,应将糊口袋尺寸规格列入标准。  相似文献   

8.
传统的水泥生产工艺为“两磨一烧”,其中水泥磨制是水泥的制成的最后一道工序,通常为各种物料共同入球磨机粉磨,最终制成水泥产品,以该工艺生产低热矿渣水泥,困难重重。水泥制成阶段是生产低热矿渣水泥的关键,要生产出低水化热、高强度的水泥,需要有非常好的生产技术,严格的控制过程。而采用“分别粉磨”“勾兑配制”生产低热矿渣水泥,可以有效地解决传统共同粉磨难以解决的问题,同时节约了大量的成本和生产调整时间。  相似文献   

9.
文章简述了老煤磨生产系统存在问题和改造原因,并针对性地提出改造方案,主要进行了电收袋、喂料机、沉降室、热风旁路、消防等改造,说明了改造前后的系统变化、改造后的效果,实现了煤磨系统安全、环保的运行目标。  相似文献   

10.
国家建材局修订水泥包装用线国家标准,提出水泥包装新技术要求:(1)无复膜塑编布内套纸制成的水泥袋不适合于水泥包装,从现在起停止使用.(2)各种水泥包装复合袋如有内村纸,则必须使用标准纸袋纸,不得使用再生纸。(3)水泥纸袋必须由4层以上标准纸袋纸制成,“三标一再”水泥纸袋停止生产。(4)鉴于现有水泥包装用袋一般不适用于高温,应取消适用温度120℃这一档次,制定新的水泥最高灌装温度标准。(5)糊口袋与缝口袋相比具有较好的力学性能,是提倡袋型.应将糊口袋尺寸规格列入标准.(6)将水泥包装袋牢固度合格指标提高到8…  相似文献   

11.
This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.  相似文献   

12.
Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.  相似文献   

13.
Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.  相似文献   

14.
NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.  相似文献   

15.
There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.  相似文献   

16.
Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.  相似文献   

17.
We examine the general equilibrium repercussions associated with the introduction of new technologies, using the generalized Leontief system that allows technological substitutions. We show that an untested introduction of cost-increasing technologies in any industry may result in creating a non-productive technological structure that does not satisfy the Hawkins-Simon condition, following the autonomous dynamic adjustment process with structural transitions in the economic system. Therefore, we propose a practicable control scheme of introducing cost-increasing technologies that strictly avoids the creation of non-productive structures in all periods of structural transition, using the available information on the ex ante technological structure.  相似文献   

18.
A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.  相似文献   

19.
We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.  相似文献   

20.
杨明 《价值工程》2012,31(7):16-17
物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。  相似文献   

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