共查询到19条相似文献,搜索用时 180 毫秒
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电除尘器改造成电-袋复合除尘器的可行性 总被引:2,自引:0,他引:2
介绍了袋式除尘器与电除尘器相比的特点与优势及电-袋复合式除尘器的机理及优点;进行了电除尘器增加电场,改造为电-袋复合式除尘器与全部改造成袋式除尘器这三者之间经济效益的比较;阐述了电-袋复合除尘器的脱硫效果及目前还需解决的问题;说明了将电除尘器改造成电袋复合除尘器的可行性。 相似文献
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介绍了袋式除尘器和电除尘器的工作原理和优缺点,以分室反吹燃煤锅炉专用袋式除尘器为例,从运行耗电、维护费用、排污费用和环保达标方面对2种除尘器进行了对比,结果表明,燃用依兰烟煤的锅炉宜选用袋式除尘器,循环流化床锅炉加袋式除尘器是当今燃煤锅炉脱硫和除尘的理想组合。 相似文献
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随着环保要求越来越严格,特别是在烟尘的排放浓度上,早期投入使用的老电厂所采用的静电除尘器由于场地限制不能增加电场,已经不能满足新的排放标准要求,故对静电除尘器的改造势在必行。介绍了静电除尘器的3种改造方案:增加电场、电除尘器改造为电袋复合除尘器和电除尘器改造为袋式除尘器。通过这3种改造方案的比较及河北西柏坡发电有限责任公司4#炉由静电除尘器改为布袋除尘器的改造实例能够说明,袋式除尘器是一种高效、稳定的除尘器,它不受烟尘比电阻的影响。而且去除细颗粒能力比电除尘器好,现已成为一项成熟技术逐渐得到推广。 相似文献
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随着环保要求越来越严格,特别是在烟尘的排放浓度上,早期投入使用的老电厂所采用的静电除尘器由于场地限制不能增加电场,已经不能满足新的排放标准要求,故对静电除尘器的改造势在必行。介绍了静电除尘器的3种改造方案:增加电场、电除尘器改造为电袋复合除尘器和电除尘器改造为袋式除尘器。通过这3种改造方案的比较及河北西柏坡发电有限责任公司4#炉由静电除尘器改为布袋除尘器的改造实例能够说明,袋式除尘器是一种高效、稳定的除尘器,它不受烟尘比电阻的影响。而且去除细颗粒能力比电除尘器好,现已成为一项成熟技术逐渐得到推广。 相似文献
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随着滤筒除尘器的技术发展,已具备普通袋式除尘器的特点,越来越多的应用于水泥行业,特别是覆膜滤料的使用及发展,更大的促进了滤筒除尘器在水泥行业的应用,与普通袋式除尘器相比有一定的优势。 相似文献
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简述了常见除尘器的分类、工作原理及各自的特点,介绍了除尘技术在实际生产中的应用情况。可以看出,电除尘器和袋式除尘器被广泛应用于工业生产中,其他除尘器如旋风除尘器、湿式除尘器、惯性除尘器等还将在各自领域发挥作用,同时,新除尘技术如超声波除尘等也将应用于工业生产中。 相似文献
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介绍电除尘器高频电源的基本原理、结构、技术性能特点,探讨高频电源的提效节能原理,以广州恒运热电(D)厂9号炉的电除尘器改造为例,介绍了高频电源在电除尘器上的节能减排效果。 相似文献
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窑头袋收尘系统可分为高温和常温两种系统,通过对这两种系统从技术和经济方面进行分析和比较发现,在装机功率、重量和系统电耗方面,常温系统比高温系统要高;在设备投资方面,两种系统基本一样;在综合生产费用方面,当单位电价小于0.804元/kWh时,常温系统更经济,当单位电价大于0.804元/kWh时,高温系统更经济。 相似文献
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详细介绍了水泥厂电除尘器改造为袋除尘器项目从初期资料准备到滤料选型、过滤风速及过滤面积确定全过程中需要注意的问题。在此基础上,实例介绍了河南中材环保有限公司电改袋项目的整个实施过程,包括参数的确定、改造内容、结构设计及安装过程中遇见的问题及其解决方案等。 相似文献
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Seok-Jun Yoa Yong-Soo Cho Yong-Seok Choi Jong-Hun Baek 《Korean Journal of Chemical Engineering》2001,18(4):539-546
The main purpose of this study was to investigate experimentally the characteristics of an electrostatic cyclone/bag filter
with inlet types (upper and bottom inlet) in order to overcome the low collection efficiency for submicron particles and high
pressure drop, which were the main problems of general fabric bag filters. The experiment was performed to analyze the collection
efficiency and pressure drop of the electrostatic cyclone/bag filter compared with that of conventional fabric bag filters
with various experimental parameters such as the inlet type (upper and bottom), inlet velocity (filtration velocity) and applied
voltages. From the results, the upper inlet type showed a slightly higher pressure drop reduction ratio as 40–90% than that
of bottom inlet. In addition, the electrostatic cyclone/bag filter represented an increment of over 5% for the collection
efficiency of submicron particles (around 1 Μm) in comparison with the general fabric filter.
Presented at the Int’/Sym. on Chem. Eng. (Cheju, Feb. 8–10, 2001), dedicated to Prof. H. S. Chun on the occasion of his retirement
from Korea University. 相似文献
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文章简述了使用硫铁矿和硫磺生产硫酸过程中易发生的事故。指出了电除雾装置的爆炸原因和防范措施。并进一步对硫磺和硫酸的储运方法做了归纳及指出了安全注意事项。 相似文献
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Sunghak Jung Youngchull Ahn Yoochul Lee Jaekeun Lee 《Korean Journal of Chemical Engineering》2013,30(2):351-356
The objective of this study is to analyze the removal characteristics and distribution of indoor air pollutants by a room air cleaner. A pollutant removal effect according to room volume and measurement point was evaluated in an indoor room. A series of filtration efficiency tests were performed on only the electrostatic precipitator of the room air cleaner. The measurements of filter efficiency and pressure drop across the electrostatic precipitator were made using an ASHRAE 52.1-1992 filter test system and an opacity meter to measure the particle concentration upstream and downstream of the test filter. Also the performance of the air cleaner in the room was evaluated by examining tobacco smoke particle concentration. The size distribution of the tobacco smoke particles was 1.27 μm in mass median diameter and a geometric standard deviation of 1.313 μm. The efficiency of the electrostatic filter was measured as 78.6% with dust particles of 1.96 μm in mass median diameter and 1.5m/s face velocity. The tobacco smoke particle concentration as a function of time decayed exponentially. The contaminant removal effect was increased when increasing the effective clean air exchange rate (ηQ/V), which is 0.0780 min?1 for 51 m3 room and 0.0235 min?1 for 149 m3 room. This study clearly shows that a room air cleaner with an electrostatic precipitator is effective in removing tobacco smoke particles. The removal characteristics and distribution of indoor air pollutants in other rooms is predicted based on empirical modeling. 相似文献
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简要地叙述了原煤及粉煤灰的特性, 介绍改造后的电除尘器的主要技术参数, 强调了在改造方案中采用钢性结构、宽间距、分小区供电等一系列措施。更新后的高压静电除尘器, 经市环保局监测验收, 除尘效率由75.1 % 提高到98.93 % , 每年可减少向大气排放烟尘5.96 kt、节约用电350 MW·h 、可多发电720 MW·h , 取得了较好的环境效益和经济效益。 相似文献