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论述了重油乳化技术机理,讨论了重油乳化技术的设计和要求,分析了燃油锅炉掺水乳化燃烧时对提高燃烧效率,节约油耗的主要影响因素。应用结果表明重油乳化技术具有较好的节油效果和经济效益,具有一定的推广和应用价值。 相似文献
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重油掺水乳化燃烧技术的试验与研究 总被引:2,自引:0,他引:2
采用HPE高效节能素为乳化剂,静态乳化器为主要乳化设备的重油掺水乳化燃烧,其工艺简单,重油乳化效果好,乳化重油在燃烧中雾化效果好,火焰明亮,节油率为10%,年节约资金80多万元,并且改善了燃烧炉结焦状况。适用于工业化生产的需要,是一项较好的节能降耗技术措施。 相似文献
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对重油乳化技术应用于铬酸钠的熟料生产进行了评价,认为该技术能够改善回转窑的焙烧环境,促进重油燃烧效应得以充分发挥,从而取得较好的经济效益和社会效益。 相似文献
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超声波-机械搅拌联合乳化重油分散度实验 总被引:1,自引:0,他引:1
采用超声波-机械搅拌联合乳化(联合法)重油技术,根据索太尔平均直径(SMD)计算法,研究了超声功率、超声频率、乳化温度、乳化时间对乳化重油中分散相(水)分散度的影响,并比较了以上因素对超声波法与联合法乳化重油分散度影响的差别。结果表明:联合法乳化重油的分散度高于超声波法,分散相(水)的SMD降低4~8μm;超声功率、乳化温度的增加有利于分散度的提高,但乳化温度不宜超过90℃;较低的超声频率有利于水在重油中的微细化;随着乳化时间的增加,乳化重油分散度先提高后降低。本实验得出联合法乳化重油的理想工艺条件为:超声功率为500~600W,超声频率为25~40kHz,乳化温度为70~80℃,乳化时间为30min左右。 相似文献
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对重油乳化技术应用于铬酸钠的熟料生产进行了评价,认为该技术能够改善回转窑的焙烧环境,促进重油燃烧效应得以充分发挥。从而取得较好的经济效益和社会效益。 相似文献
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不同类型燃煤工业锅炉具有各自的技术优势及应用范围,为了给用户在项目立项、选择锅炉时提供正确参考,阐述了3种主流燃煤工业锅炉的技术特点、应用现状,并着重针对循环流化床锅炉和现代煤粉工业锅炉,从燃烧组织方式和技术特点两方面进行了系统的技术对比分析。经分析认为,流态化燃烧组织是循环流化床锅炉的技术基础,浓相室燃燃烧组织是现代煤粉工业锅炉的技术基础。依托密相床炉料的巨大热容量,循环流化床锅炉定位于处理高灰劣质燃料;依托低变质高活性清洁煤粉快响应着火喷燃,现代煤粉工业锅炉定位于油(气)锅炉的备份及互换。因此,二者非取舍而是互为补充的关系。 相似文献
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介绍了美国工业锅炉的基本情况和主要的燃煤工业锅炉技术,分析了锅炉专用煤的要求及燃煤工业锅炉的污染控制技术。分析发现,美国的燃煤工业锅炉运行年代长,通过不断技术改造使锅炉保持较高的运行效率;美国对不同类型锅炉的煤质有专门规定,以保证锅炉高效率燃烧和低污染排放。美国燃煤锅炉采用各种污染物减排措施,保证了污染物达标排放。 相似文献
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Volatile oil markets experienced in the seventies have promoted renewed interest in coal-based fuel technologies. Coal-slurry fuels have emerged as viable technical alternatives for oil and gas in utility and industrial boilers. Despite current low prices and the abundance of oil, concerns over its long-term availability and price, as well as strategic considerations, make coal-slurry technology attractive. Initially, coal-slurry fuels were based on coal-oil mixtures, now the emphasis is largely on coal-water fuels. This review assesses the status of the relevant technology. It covers the preparation of coal-slurry fuels, slurry properties, combustion characteristics, emissions, current applications and concludes with their future outlook. 相似文献
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Microwave plasma is studied as an alternative to oil or gas fuel for ignition and stabilisation of burning of lean coal. The study is performed on an experimental set-up, which includes a burner with a microwave plasma generator, coal and air supply systems, and measurement equipment. Power and thermochemical characteristics of the coal-plasma interaction have been measured and analysed. The obtained results indicate an essential intensification of ignition and combustion processes in the microwave burner compared to those in conventional burners. In particular, it has been demonstrated that the microwave energy consumption is only about 10% of the required expenditure of oil or gas, measured in heat equivalent. A design of an industrial microwave-plasma burner is proposed. Prospects of such burner for applications at industrial boilers of power plants are discussed. 相似文献
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Hui Wang Xiumin Jiang Minxiao Zhang Yufeng Ma Hui Liu Shaohua Wu 《Chemical Engineering and Processing: Process Intensification》2010
Slagging is a major operating problem in application of the atomization–suspension combustion technology for burning coal water slurry (CWS) fuel in small and low height industrial boilers. The fluidization–suspension combustion is a new alternative for replacement of oil, which is capable of solving the slagging problems. In addition, it can be successfully applied to CWS-fired boilers with capacity smaller than 35 t/h. About 530,000 medium and small scale industrial boilers with low boiler efficiency in China provide the technology a very promising prospect. The principles and contents of CWS fluidization–suspension combustion technology are introduced in detail in this paper. And a new type of 14 MW fluidization–suspension CWS-fired boiler was developed, the performance of which showed that boiler efficiency was 91.53%. Emission of SO2 and NOx was 346.1 mg/m3 and 469.5 mg/m3, respectively. From the application, the CWS-fired boiler showed good features such as high efficiency, low pollutant emission, good load regulation, good CWS quality adaptability, steady operation and convenient maintenance. 相似文献
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王会勤 《煤炭加工与综合利用》2011,(6):57-59
平煤神马集团三矿针对矿井回风中丰富的热源,采用热泵技术提取其中的热量,为工业广场内建筑冬季供暖、井筒防冻、夏季制冷,并为洗浴热水提供热源,从而取消燃煤锅炉,减少了污染物排放量;介绍了该技术的原理及特点,根据所需热负荷,提出了实施方案。 相似文献
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稠油废水回用热采锅炉供水工艺与工程实践 总被引:8,自引:1,他引:7
总结了稠油废水的来源和特性,针对稠油废水出路,阐述稠油废水回用热采锅炉供水的意义.评介稠油废水进出水水质、工艺流程、回用工艺认识,阐述缓冲调节、混凝沉降、溶气浮选、吸附除硅、粗精过滤、弱酸软化、污泥脱水等各单元处理工艺的应用现状、工艺特点、选择经验、发展趋势,并简述工程实践概况.提出存在的主要技术难题和解决对策,为回用工艺的进一步发展完善提供借鉴. 相似文献