共查询到17条相似文献,搜索用时 78 毫秒
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分析了电袋复合除尘器袋式除尘单元清灰效果的影响因素,并对某热电厂330MW机组燃煤锅炉电改电袋复合除尘器的清灰制度进行了优化。重点对比了优化前后的电袋复合除尘器的清灰频率、清灰周期、运行阻力等参数的大小,优化结果可以作为大型燃煤锅炉电改电袋复合除尘器清灰制度的借鉴。 相似文献
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目前电除尘器和袋式除尘器是烟气净化的两种主要设备,电袋复合除尘器是一种高效的除尘技术,它结合两种类型除尘器的优点,并成功的应用于燃煤电厂烟气的净化,其排放浓度可长期稳定在30mg/m3以下。 相似文献
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结合某电厂“上大压小”改建工程中2台600 MW机组配套电袋除尘器的实际情况,分析了滤袋材料的选择原则及更换原因,论述了袋式除尘器滤袋材料对烟气的适应性,为燃煤电厂袋式除尘器滤袋材料的选择提供参考. 相似文献
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介绍了扬子热电厂1~7号炉电除尘器改造为电袋复合除尘器的工程实践,分析了电袋复合除尘器的关键技术及运行情况。改造后,电袋复合除尘器出口烟尘浓度≤30mg/m3,满足排放要求。 相似文献
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The aim of this research was to separate waste plastics acrylonitrile butadiene styrene (ABS) and polystyrene (PS) by dissolved air flotation in a self-designed dissolved air flotation apparatus. The effects of wetting agents, frother, conditioning time and flotation time on flotation behavior of waste plastics ABS (w-ABS) and PS (w-PS) were investigated and the optimized separation conditions were obtained. The results showed that when using 25 mgL(-1) tannic acid, 5 mgL(-1) terpineol, 15 min conditioning time and 15 min flotation time, mixtures of w-ABS and w-PS were separated successfully by dissolved air flotation in two stages, the results revealed that the purity and recovery rate of w-PS in the floated products were 90.12% and 97.45%, respectively, and the purity and recovery rate of w-ABS in the depressed products were 97.24% and 89.38%, respectively. Based on the studies of wetting mechanism of plastic flotation, it is found that the electrostatic force and hydrophobic attraction cannot be the main factor of the interaction between wetting agent molecules and plastic particles, which can be completed through water molecules as a mesophase, and a hydrogen bonding adsorption model with hydration shell as a mesophase was proposed. 相似文献
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黑曲霉吸附弱酸性艳蓝RAWL的机理 总被引:2,自引:0,他引:2
为了研究黑曲霉吸附弱酸性艳蓝RAWL(简称染料)的机理,通过红外光谱和化学修饰的方法,考察了黑曲霉对染料吸附性能的pn响应模式,表征了黑曲霉干粉菌体表面的主要官能团组成及不同官能团对吸附染料的贡献。实验结果表明:在强酸性(pH不大于2)条件下黑曲霉对染料的吸附效果最好;黑曲霉干粉菌体表面含有氨基、羧基和磷酸根;经脂质脱除、磷酸根酯化修饰、羧基酯化修饰、氨基甲基化修饰后对染料的吸附性能不变,而乙酰化氨基在酸性体系中失去质子化能力,对染料的吸附性能下降51.6%,说明低pH条件下氨基质子化导致带正电的黑曲霉干粉菌体与带负电的染料之间的静电引力是吸附染料的重要原因。 相似文献
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粉尘比电阻对电除尘的影响及改进措施研究 总被引:3,自引:0,他引:3
着重研究、了影响电除尘器效率较为突出的因素——粉尘比电阻,总结出:针对高比电阻粉尘对电除尘器的影响,必须定期测试粉尘的比电阻并对烟气进行调质,还可采取间歇供电的方式来提高除尘效率;对低比电阻粉尘.可直接敲打或刷落收尘极板上的粉尘,或采用高电阻率收尘极板及用导电涂料涂敷收尘极板等方法均可以提高除尘效率。 相似文献
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