高温真空设备橡胶衬里的特性及应用

介绍了高温真空设备用丁基橡胶衬里的特性及应用实例,指出现开发的丁基橡胶衬里技术完全满足高温真空设备、混凝土设备、巨型设备的防腐衬胶要求,具有工业化应用前景。     

胶料在单螺杆橡胶挤出机中的三维流场分析

利用ANSYS软件，以一个螺旋长度为对象，经过简化和边界处理，研究单螺杆挤出机中胶料的三维流场，根据分析结果讨论了胶料在螺槽中的流动状况，认为在螺槽横截面中存在一定的流动“死区”，在设计螺杆时，螺槽不宜太探，螺棱与螺槽底部交界处应有一定的圆弧过渡。     

高温煤气脱硫剂及再生特性研究

高温煤气净化是实现IGCC过程的关键环节，系统地介绍了国内外钙、锌、铜的锰系高温脱硫剂近年来的研究结果，同时结合脱硫剂再生的研究，分析了各种脱硫剂在高温脱硫过程中可能遇到的问题，探讨了各种脱硫剂的再生方法以及相应的尾气处理方案，最后对我国今后高温煤气脱硫剂研究开发提出了几点建议。     

生物技术在挥发性有机废气净化中的应用

生物技术是近年发展起来的挥发性有机废气净化新技术.文章介绍了国内外这方面的应用进展、主要处理工艺设备及其性能特征.概述了生物滴滤塔处理挥发性有机废气的影响因素的选择,同时指出了存在的主要问题和今后的研究方向.     

橡胶废气催化燃烧技术获得突破

由中石化抚顺石油化工研究院开发的橡胶废气催化燃烧处理技术获得突破.这项以催化燃烧为核心的橡胶废气治理技术具有能耗低、操作简便、处理效果好等特点,可使净化气达到国家排放标准.     

橡胶废气催化燃烧技术获突破

由中石化抚顺石油化工研究院开发的橡胶废气催化燃烧处理技术近日获得突破。这项以催化燃烧为核心的橡胶废气治理技术，具有能耗低、操作简便、处理效果好等特点，可使净化气达到国家排放标准。     

橡胶废气催化燃烧技术获突破

由中石化抚顺石油化工研究院开发的橡胶废气催化燃烧处理技术2009年4月获得突破。这项以催化燃烧为核心的橡胶废气治理技术，具有能耗低、操作简便、处理效果好等特点，可使净化气达到国家排放标准。     

液液水力旋流器流场特性与分离特性研究 (一)——锥角变化对切向速度场的影响

研究了液液水力旋流器锥角变化对其切向速度场分布的影响,主要讨论了大、小锥角变化时大锥段和小锥段速度场的分布情况,得出了一些有益的结论     

聚合物熔体与CO2气泡在螺旋流场中的动态特性研究

利用自行设计的长方形可视化流道进行了大量的试验，观察CO2气泡在聚合物熔体中的动态特性，分析了CO2气泡与聚合物熔体在螺旋流场及组合流场中的形态及变化。通过改变加工条件及控制参数，利用可视化流道和机头，观察并摄取了熔融聚合物中气泡的形态、变形、破裂等动力学现象，从实验观察角度出发，总结出CO2气泡在螺旋流场中的形态、分布，大小及变形等的影响因素。     

湿式静电除雾器净化氧化锆煅烧烟气的应用

文章介绍了湿式静电除雾器的工作原理、结构性能及净化氧化锆煅烧工艺产生的氯化铵烟气的运行效果。实践证明,湿式静电除雾器净化氧化锆煅烧烟气的应用是成功的,并且具有良好的推广价值。     

湿式除污器在陶瓷行业烟气终端治理的应用

本文阐述了湿式除污器的工作原理和技术特点,重点介绍了湿式除污器在陶瓷行业干燥窑和喷雾干燥塔湿法脱硫尾部烟气治理的应用情况。通过工程实例分析表明:湿式除污器能有效去除烟气中的粉尘微粒、SO_3酸雾、气溶胶、Hg等重金属,并很好地解决湿法烟气脱硫所携带的石膏雨问题,最终实现超低排放。     

烟气印染废水脱硫+湿式电除尘器的工业应用

简述了印染废水脱硫和湿式电除尘器的工作原理,该工艺联用后能达到新的环保标准要求,并能使印染废水变废为宝实现节能减排的要求。     

烟气循环流化床脱硫除尘器的特点及选型

烟气循环流化床脱硫装置投运后,除尘器入口处烟气的温度、湿度、含尘浓度以及脱硫灰渣的粒径分布和比电阻等烟尘性质与普通煤粉炉飞灰相比都发生了很大变化。烟气循环流化床后置的电除尘器,必须在设计选型上采取相应的措施,才能保证电除尘器高效可靠运行,脱硫后的烟气才能达标排放。     

低低温电除尘对烟气烟尘脱除的影响

对某百万燃煤机组进行低低温电除尘进出口烟尘浓度测试,研究低低温电除尘对烟尘的脱除情况以及不同负荷和改造前后对低低温电除尘除尘效率的影响。试验结果表明:测试结果合理,低低温电除尘除尘效果可达99.9%以上且对不同负荷适应性较好;与改造前相比,低低温电除尘改造后烟气比电阻降低,烟气流量降低,更有利于烟尘的捕集与脱除,除尘效率由99.65%增加到99.92%,     

Filtration Characteristics of a Miniature Electrostatic Precipitator

This study investigates the filtration characteristics of a miniature dual saw-like electrodes electrostatic precipitator (ESP). Parameters such as particle size, rate of airflow through the ESP, voltage of charge electrode, and discharge polarity were considered to study their influence on aerosol penetration through the ESP. Polydisperse and monodisperse particles with sizes ranging from 30 nm to 10 w m were used as the challenge aerosols. Experimental results indicated that the aerosol penetration through the ESP decreased (from 96% to 15% for 0.3 w m) as the voltage of the discharge electrode increased (from + 4 kV to +8 kV) at a flow rate of 30 L/min. At a fixed electrode voltage (+8 kV), aerosol penetration increased from 15% to 69% for 0.3 w m particles as the flow rate increased from 30 to 120 L/min. The most penetrating particle size was in the range of 0.25 w m to 0.5 w m depending on the discharge voltage and the flow rate. In general, the most penetrating particle size of the ESP decreased with decreasing discharge voltage or with increasing flow rate. At the same voltage level but opposite polarity, the aerosol penetration through the ESP with negative corona was lower than that with positive corona. The difference in aerosol penetration was a factor of about 2 between the negative and positive coronas for 0.3 w m particles, and this difference was found to be independent of discharge voltage. Regarding energy conservation, use of a negative-polarity ESP was more economical if the same efficiency was required. However, the ozone generated by the ESP with negative polarity was about five times greater than that generated with positive polarity. Therefore when using an ESP as an indoor air cleaner, the search for an optimum balance between ozone production and aerosol collection efficiency should be considered.     

煤气含氧分析仪在电捕焦油器中的应用

用煤气含氧分析系统较好地解决了鼓风机前负压煤气含氧量的连续自动分析难点，确保了电捕焦油器的连续运行及后续工序的正常生产。     

Separation Characteristics of Submicron Particles in an Electrostatic Precipitator with Alternating Electric Field Corona Charger

Experiments were carried out to investigate filtration characteristics of an electrostatic precipitator (ESP) with alternating and direct electric field corona charger. Potassium Sodium Tartrate Tetrahydrate as the material was used to generate polydisperse submicron aerosols by using Constant Output Atomizer. The results indicated that the aerosol penetration through the ESP decreased as applied voltage increased. The maximum collection efficiency of either alternating or direct electric field was more than 98%, though the applied voltage of alternating electric field was higher than that of direct electric field. However, from the viewpoint of power consumption, the direct electric field had higher power consumption rate than alternating electric field at similar collection efficiency. For example, when the 0.2 μm particle penetration was about 4%, the power consumptions of alternating and direct electric field were 16 watt and 18 watt, respectively. Hence the separation quality of alternating electric field was better than that of direct electric field. Moreover, considerably lower ozone concentration was found in alternating electric field ESP, compared to direct electric field.     

氨法烟气脱硫吸收塔流场数值模拟

氨法烟气脱硫工艺过程一般分为脱硫吸收、中间产品处理、副产品制造三部分,吸收塔是氨法脱硫的核心设备。以某化工厂锅炉烟气氨法脱硫项目吸收塔作为流场数值模拟对象,分析了吸收塔内的烟气流动形态。结果表明,吸收塔系统整体压降不超过2000Pa、浆液分布均匀。     

温度对大型磷炉静电除尘器的影响

分析了黄磷生产过程中温度因素对静电除尘器的除尘效率的影响,并对除尘器结构部件因热变形产生的故障采取了技术改进措施,从而提高了静电除尘器的除尘效率。