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本文研究了硅铁电炉布袋除尘收集的烟尘性能,烟尘低温固结球团的性能和工艺方法。研究结果表明,硅铁电炉烟尘中SiO2 约占90 - 95 % ,其它组分含量较低,有利于进行回收利用。烟尘密度小、粒度细、表面活性差、成球性能差。采用添加粘结剂进行自然养护和低温固结处理,均能获得强度较好的固结球团,能够加入铁合金炉回收利用。 相似文献
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铁合金电炉烟尘治理技术分析 总被引:2,自引:0,他引:2
本文在分析了半封闭铁合金电炉产生的烟气、烟尘的特性和各种除尘设备性能的基础上,提出了净化铁合金电炉烟尘的三种技术:袋式除尘、强化湿式除尘和文丘里除尘器。并对袋式除尘工艺和Calvert洗涤器除尘工艺作了介绍,分析了它们的经济技术指标。半封闭铁合金电炉烟尘只能采用布袋除尘器净化,只有那些建在环境空气质量三类区的铁合金电炉,当资金非常紧缺时,才可采用Cavlert洗涤器除尘。 相似文献
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在硅铁冶炼烟尘治理过程中,采用新型可调式在线预处理器其应用结果表明,该处理器在提高烟尘治理效果和回收可利用价值粉尘质量方面有显著的作用 相似文献
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采用Calvert 洗涤器净化铁合金电炉烟尘 总被引:1,自引:1,他引:1
采用Calvert洗涤器净化半封闭铁合金电炉烟尘,在达到相同的除尘效率的条件下,阻力降仅有高能文氏管的一半,运转费用也相应下降许多。因此在环境空气质量为二类区和三类区的区域,采用投资较省的Calvert洗涤器来净化铁合金电炉烟尘是可行的。 相似文献
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文章介绍了某铁合金厂12500KVA 硅铁电炉烟气净化改造采用正压袋式除尘系统,并获得成功,为铁合金行业治理有害烟气开辟了一条可行之路 相似文献
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长袋低压脉冲袋式除尘器净化炼钢电炉烟气技术原理及应用效果 总被引:2,自引:0,他引:2
我国现有炼钢电炉约1400座,其中一半为钢铁企业所拥有,电炉钢产量2000多万吨,连同大量的铸钢电炉,每年产生粉尘30万吨以上。随着“短流程”炼钢工艺的发展,电炉钢产量及产尘量正迅速增加,是一个不容忽视的污染源。治理工作虽已进行多年,取得很大成绩,但仍有相当数量的烟尘治理设施效果欠佳,有的甚至完全瘫痪,其原因多为除尘器选用不当。近年来,长袋低压脉冲袋式除尘器在炼钢电炉的应用取得良好的效果,包括超高功率电炉在内的一批新建电炉工程竞相采用脉冲袋式除尘器技术。本文就该项技术特点、清灰能力及应用效果等作了阐述。 相似文献
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硅铁生产中烟气治理技术发展近况与最佳选择 总被引:2,自引:0,他引:2
通过对国内外硅除炉除尘技术现状及发展趋势的论述与分析,认为分室停风脉冲喷吹袋式除尘器,以其独特的设计,解决了袋式除尘在清灰技术的关键和难点,具有清灰彻底,除尘效率高,投资及运行成本低等优点,是目前青海省硅铁炉烟尘治理技术的最佳选择。 相似文献
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Trametes versicolor decolorized 2000 mg L(-1) of the mono-azo substituted naphthalenic dye Amaranth with no dye sorption observed visually. The changes in the toxicity were assessed over a period of 30 d for the dye-treated viable culture, control (no dye added), and a boiled culture treated with dye, using the Microtox Acute Toxicity assay. Before dye addition, the culture filtrate had some toxicity, which increased after the dye addition. The toxicity of the dye-treated culture decreased during the treatment. The loss of toxicity occurred at the same time, with the loss of color suggesting that detoxification is associated with decoloration. The change in pH was due to natural metabolic processes and had a small effect on detoxification. Because the toxicity of the treatment was similar to that of the control at the end of the treatment, the effluent seems to be safe for release into the environment, potentially rendering this treatment suitable for industrial application. 相似文献
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城镇化是推动我国经济社会发展的重要动力,在高速发展的同时,带来大量污染排放,威胁乡村环境质量与可持续发展。在对乡村生态环境问题剖析的基础上,从战略、实施、方式等层面探索解决思路,围绕科学规划、发展方式、基础建设、管理机制、宣传教育等方面分析关键点,加强乡村环境保护,保障城镇化建设健康发展,为促进农村农业持续发展提供持久动力。 相似文献
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泵站树状给水管网流量具有随机性,而这种随机性变化会直接影响管网的建设费用和动力费用.针对这-特点,应用随机规划原理,建立泵站树状给水管网机会约束模型,编写基于随机模拟的遗传算法程序求解该模型.机会约束模型能较客观地反映该管网的实际工况,使优化设计结果更符合实际. 相似文献
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燃煤二氧化硫控制技术应用概况 总被引:1,自引:0,他引:1
由燃煤引起的二氧化硫污染已成为大气环境中最主要的污染因子。为解决这个问题,我国结合国外的技术成果,进行了各种脱硫技术的研究。介绍了各种治理技术应用情况,并结合实际经验对其中应注意的问题给予评述。 相似文献
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Günay Kocasoy 《Environmental management》1989,13(4):469-475
The increase in the number of tourists visiting a coast is desired by most of the countries for economic reasons. However, this increase in tourism may cause pollution of the sea. This can be only avoided by proper planning and by predicting the carrying capacity of the coast in terms of sea pollution. This is especially important for developing countries where part of the wastewater is discharged without any treatment into the sea.In the present study the beaches were classified according to their use — and consequently the amount of waste discharged into the sea — into four groups: (1) coasts that are used only for swimming and recreational purposes; (2) coasts used simultaneously for dwelling, swimming, and recreational purposes; (3) coasts along which only dwellings exist; and (4) natural and man-made harbors, i.e., coasts used as shelters. During the survey,40,320 observations were made between December 1985 and February 1988 to determine the effect of the number of tourists on seawater quality. The results obtained were analyzed by a multilinear regression program to obtain an empirical equation giving the extent of the sea pollution in terms of coliform concentration as a function of population density and some other environmental factors.The equations derived in this study enable the determination of the carrying capacity of a beach in terms of pollution as well as the expected degree of pollution corresponding to a given population density. Furthermore, it allows the prediction of the extra carrying capacity that can be obtained by improving the waste-disposal conditions. 相似文献
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阐释了信息产业专门化街区的内涵,结合对合肥市黄山路信息产业专门化街区构成要素的分类及其邻近度的分析,分别从空间结构演化、景观演化、功能演化三方面阐述了合肥市黄山路由"电子一条街"向"信息产业专门化街区"的总体演化阶段,探讨了信息产业专门化街区的未来发展趋势。 相似文献