共查询到17条相似文献,搜索用时 78 毫秒
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从工艺流程、原料化处理工艺及在高炉中能量利用三方面对高炉喷吹煤粉和废塑料进行比较分析可以看出,高炉喷吹废塑料和高炉喷吹煤粉一样可以作为高炉辅助喷吹燃料技术,高炉喷吹废塑料不仅为高炉炼铁提供了燃料,更能解决废塑料造成的环境污染问题,是兼顾社会效益、环境效益和生产效益的综合利用技术。 相似文献
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高炉喷吹废塑料技术及应用前景 总被引:2,自引:0,他引:2
从废塑料喷吹后的燃烧分析、对高炉冶炼的影响、能量的利用等多方面分析了废塑料应用于高炉喷吹的可行性。并分析了国外高炉喷吹废塑料的实践与进展。分析表明:高炉喷吹废塑料的技术既为废塑料的综合利用和治理“白色污染”开辟了一条很好的途径,也为冶金企业节约能源提供了一种新的手段。 相似文献
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高炉喷吹废塑料的现状及前景 总被引:1,自引:0,他引:1
李博知 《金属材料与冶金工程》2002,(3):7-9,30
通过对国外高炉喷吹废塑料的实践分析,探讨了我国高炉喷吹废塑料的可行性。高炉喷吹废塑料,为治理“白色污染”、节约能源增加企业效益,提供了一个良好的途径。 相似文献
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通过对国外高炉喷吹废塑料的实践分析,探讨了我国高炉喷吹废塑料的可行性。高炉喷吹废塑料技术可为治理“白色污染”、节约能源、增加企业效益提供一个良好的途径。 相似文献
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通过对国外高炉喷吹废塑料的实践分析,探讨了我国高炉喷吹废塑料的可行性,以及高炉喷吹废塑料技术为治理“白色污染”,节约能源及增加企业效益,提供了一个良好的途径。 相似文献
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高炉喷吹废塑料的现状及前景 总被引:2,自引:0,他引:2
通过对国我高炉喷吹废塑料的实践分析,探讨了我国高炉喷吹废塑料的可行性,高炉喷吹废塑料技术为治理“白色污染”、节约能源增加企业效益提供了一个良好的途径。 相似文献
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高炉喷吹废塑料是一项新型环保技术,德国和日本的一些钢铁企业已成功地采用了该项技术,国内的一些学者也提出了我国高炉喷吹废塑料的设想,以鞍钢为例,通过对废塑料的收集、分类、除氯、投资及经济效益的分析,阐述了鞍钢高炉喷吹废塑料的可行性。 相似文献
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The possibility of using waste plastics as a source of secondary fuel in the blast furnace has been of interest recently. In order to study the feasibility of injecting waste plastics into blast furnaces, the paper compares the combustibility of several kinds of waste plastics with that of pulverized coal. To improve the combustion efficiency of waste plastics in the blast furnace, the effects of plastic particle size, blast furnace temperature and different atmosphere were investigated in the laboratory. The result shows that compared with pulverized coal, waste plastics have lower thermal ignition temperature, shorter burning time, higher burning rate, lower ash ratio and higher calorific values, which are beneficial for blast furnace injection. With the increase of both the blast temperature and the level of oxygen enrichment, as well as the decrease in the particle size of waste plastics, the combustibility of waste plastics can be improved immensely. The optimization of blast furnace injection utilizing recycled plastics as a source of secondary fuel is possible by considering all these variables. 相似文献
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王颖 《冶金设备管理与维修》2012,(3):53-57
废塑料循环利用技术对于全球环境保护和社会发展都是一个非常重要的课题。JFE制钢公司为了将废塑料作为高炉的还原剂,通过热模燃烧实验;研究了废塑料的燃烧气化率。经过研究,为了改善粗粒废塑料的燃烧性,开发了同时喷吹煤粉或/和天然气的技术,为了提高废塑料的燃烧和气化率及炉内透气性,JFE开发出将废塑料与碳酸钙(CaC03)复合造粒技术。另外,JFE还研究了废塑料精细粉碎技术。此技术已经应用在实际生产中。 相似文献
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Investigation on Co-Combustion Kinetics of Anthracite and Waste Plastics by Thermogravimetric Analysis 总被引:1,自引:0,他引:1
LIU Zheng-jian REN Shan ZHANG Jian-liang LIU Wei-jian XING Xiang-dong SU Bu-xin 《钢铁研究学报(英文版)》2012,19(10):30-35
In order to effectively recycle resource for the benefit of the global environment, the utilization of waste plastics as auxiliary injectant for blast furnaces is becoming increasingly important. Combustion kinetics of plastics-coal blends with 0, 10%, 20% and 40% waste plastics (WP) are investigated separately by thermogravimetric analysis (TGA) from ambient temperature to 900 ℃ in air atmosphere. These blends are combusted at the heating rates of 5, 10 and 20 ℃/min. The results indicate that, with the increase of waste plastics content, the combustion processes of blends could be divided into one stage, two stages and three stages. The waste plastics content and heating rates have important effects on the main combustion processes of blends. With the increase of waste plastics content, the ignition temperature and the final combustion temperature of blends tend to decrease, while the combustion reaction becomes fiercer. With the increase of the heating rate, the ignition temperature, the mass loss rate of the peaks and the final combustion temperature of blends combustion tend to increase. The Flynn-Wall-Ozawa (FWO) iso-conversional method is used for the kinetic analysis of the main combustion process. The results indicate that, when the waste plastics content varied from 0 to 40%, the values of activation energy increase from 126.05 to 184.12 kJ /mol. 相似文献