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本报告考察了山东省与济南市安防报警服务业的市场发展情况、及其行政管理体制的历史沿革和现状,从认识、立法和行政管理体制等几个方面,分析了影响安防报警业进一步市场化和社会化进程的几个问题,并从立法的角度针对这些问题提出了几点设想。 相似文献
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朱龙居 《特种设备安全技术》2005,(1):50-50
在多年的压力容器产品制造监检过程中,笔者发现有几个问题非常值得探讨,而且这些问题很少能引起人们重视。本文把这几个问题提了出来,并作了简要的分析,阐明了自己的观点。 相似文献
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恐慌
在云南锡业集团公司(以下简称云锡)家属院里,几个老人伴着午后的阳光,聚在一起闲聊。记者上前向老人们询问有关肺癌的问题,没人作答。再问,几个老人拿起屁股底下的小板凳,走了—— 相似文献
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孙连启 《中国特种设备安全》2014,(8):37-41
循环流化床锅炉磨损是降低锅炉使用率的重要因素,其中水冷壁管磨损导致的爆管停炉事故十分突出。本文连续监测5台150t/h循环流化床锅炉4年,给出了循环流化床锅炉水冷壁磨损方式,评估了水冷壁剩余寿命,根据锅炉运行表现验证了评估结果。 相似文献
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云天化股份公司在2004年建造了3#循环流化床锅炉,以煤代气。它可以缓解公司原料天然气的紧张状况,并能带来很大的经济效益。从技术经济的角度对该项目的技术先进性、可靠性及内部收益率、投资回收期、净现值等技术指标进行了分析。 相似文献
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针对目前森工林区供热行业使用传统燃煤锅炉现状,分析对比层燃锅炉与循环流化床锅炉的优缺点,分析森工林区供热行业应用循环流化床锅炉的前景。 相似文献
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Qiang Tang Qin Wang Pengfei Cui Weiwei Cao Shifeng Hou 《Process Safety and Environmental Protection》2013,91(5):386-390
A new process of flue gas desulfurization in circulating fluidized bed with flue gas bypass ducts is presented. k–? Model, Discrete Phase Model and Finite-Rate Chemistry Model are proposed to simulate the desulfurization process characteristics in circulating fluidized bed reactor. The proposed model is validated by the comparison of experimental data and simulation results. The results show that the desulfurization reactor with bypass ducts is superior to the reactor without bypass ducts. The reactor with bypass ducts has higher desulfurization efficiencies and lower flow resistances than the reactor without bypass ducts, and it is more suitable for flue gas flow variation. Desulfurization reaction rate is controlled by absorption reaction on sorbent particles surface. When water content and Ca/S ratio increase, desulfurization efficiency of the reactor with bypass ducts increases. When SO2 concentration increases, desulfurization efficiency decreases. 相似文献
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赵淑珍 《中国特种设备安全》2013,(10):10-11
分析了垃圾发电锅炉入料口的正压释放问题,设计的风幕技术保证了此类循环流化床锅炉的安全运行,风幕技术改造结构设计合理,实用性强,值得在同类行业中推广应用。 相似文献
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A gas–solid fluidized bed bioreactor was successfully used to treat air contaminated with a volatile organic compound (VOC). A bioreactor containing both a fluidized and packed bed of moist peat granules removed ethanol, a representative VOC, from an air stream. The fluidized bed operation mode of the bioreactor outperformed the packed bed mode. The maximum elimination capacity (EC) of ethanol in the fluidized mode was 1520 g m−3 h−1, with removal efficiencies ranging between 45 and 100%, at loadings up to 3400 g m−3 h−1. Maximum EC was 530 g m−3 h−1 in the packed bed mode. Removal efficiency in the fluidized bioreactor was best at the lowest velocity, where the bubbling bed fluidization regime predominated. As gas velocity increased, the size and amount of large bubbles (slugs) increased and removal efficiency decreased while elimination capacity increased. 相似文献