全密闭电石炉尾气治理及综合利用

由于全密闭电石炉的尾气性质特殊，治理和综合利用存在一定的难度。本文总结了国内电石生产厂家的多种治理和利用方法，并根据国家产业政策的要求，提出了适合我国国情的电石炉烟气治理及综合利用方法。     

甘肃省25,000kVA密闭电石炉节能减排研究

分析了近年来高能耗行业铁合金、电石行业的污染现状、25,000kVA密闭电石炉的烟气特征以及烟气净化技术,根据甘肃省25,000kVA密闭电石炉的烟气产生量和耗煤量,计算了密闭电石炉的年节能排量,指出密闭电石炉在甘肃全省节能减排、环保工作中的重要作用。     

2万千伏安电石炉烟气治理与余热利用

２００００ＫＶＡ半密闭电石炉烟气治理与余热利用项目的开发成功,受到国内同行和有关部门的关注。在１９９８年３月召开的“全国电石炉烟气治理交流会”上,与会代表对此项目予以肯定,认为其烟气治理技术在同类型炉烟气治理中居前列;对同类型炉,尤其对约占７０％的开放炉烟气治理有重要参考价值。     

宁夏电石行业的现状及发展探讨

对宁夏回族自治区(简称宁夏区,或宁夏)内的电石企业进行调研,分析了宁夏区电石企业的生产规模、电石炉装机容量、电石炉炉型等产业发展现状;针对电石行业存在的主要问题提出了相关建议,并对行业今后的发展方向进行了展望。     

电石炉烟气净化问题的探讨与实践

本文介绍了国内电石炉烟气净化情况及烟气净化项目应用实例，并对电石炉烟气净化的难点问题进行了探讨。     

电石炉烟气除尘系统设计探讨与实践

介绍了电石炉的生产工艺和除尘系统的工艺特点,以及电石炉除尘系统设计前和实际工程设计中需要注意的一些问题。     

浅析电石渣的综合利用

本文对电石渣在建材、环保、化工等多个行业中的应用情况进行了分析，并着重介绍了电石渣替代石灰石生产水泥的工艺。     

电石渣浆处理与资源化

针对电石渣浆处理的工艺流程和资源化途径进行了效益分析,工程实践表明:电石渣浆处理后,浆水回用作为生产用水,降低了乙炔生产成本.同时彻底解决电石渣含水率高的问题,利于企业开展资源化,值得在乙炔行业推广.     

烧结板除尘器在PVC生产中的应用

介绍了烧结板除尘器在电石法PVC生产中的应用；简述了烧结板除尘器的工作原理和特点；通过结合烧结板除尘器在矿石生产线上的应用情况，验证了烧结板除尘器在电石法PVC等行业除尘应用中的优异除尘效率。     

电石渣烟气脱硫吸收塔的结构研究

文章以某化工园区产生的电石渣治理75t/h循环流化床锅炉烟气为例,分析了电石渣脱硫工艺的选择方向.根据电石渣的物化性质,对钙基湿法脱硫塔进行优化设计,提出了一种更适用于电石渣脱硫吸收剂的塔型结构,使脱硫系统能以更高效和经济的方式实现超低排放,为电石渣作为脱硫剂应用于超低排放系统提供了一种设计构想和技术参考.     

Resources consumption and wastes emission analysis for two manufacture processes of siliconit

Silicon carbide (SiC) heating elements (siliconits) are widely used at high-temperature fields. The raw materials, manufacture process and application fields of siliconits are all related to heavy energy consumption and pollutions, and bring high environmental loads. The resources consumption and pollution emissions in siliconit manufacture process were quantificationally estimated by input/output method. Difference between two traditional techniques to produce siliconits in China was also compared and analyzed. The results show that siliconit manufacture processes consume large quantities of resources because the furnace is open to environment and too much thermal-protection materials are used. For the thick-end technique is more complicated and the thick-end siliconits have a bigger size and mass, there are more resources and energy consumptions and pollution emissions for thick-end process than that for equal-diameter process. Some suggestions were introduced to improve the traditional techniques and a new process was designed. It is the most important that the open furnace should be replaced by close vacuum furnace. Sintering and siliconizing process can be combined into one high-temperature process. As results of process simplification and vacuum sintering, resources and energy consumption and wastes emission can be decreased remarkably.     

CO2 emissions in calcium carbide industry: An analysis of China's mitigation potential

China's calcium carbide output has dominated the global market for several years, driven by the demand for PVC (polyvinyl chloride), a fundamental polymer material and also the primary downstream product of calcium carbide in China. The fast growth of this energy-intensive industry leads to an inevitable increase in CO₂ emissions. However, there is a large reduction potential with process improvement in this industry which is currently characterized by widespread outdated facilities. In this study, we attempt to assess the reduction potential of CO₂ emissions in China's calcium carbide production, based on the analysis of CO₂ emission patterns and estimation of the emission amount. Three scenarios regarding process improvement are employed to conduct this assessment. The results imply that the cumulative CO₂ abatement in the Current Policy Scenario and in the Strengthened Policy Scenario from 2008 to 2020, compared with the Baseline Scenario, are 89.0 and 107.6 million t, respectively. The specific measures and policy implications to achieve this potential are also discussed in the article.     

碳酸钙在补钙食品中的利用和开发

简要介绍了钙在机体内的吸收情况，并就碳酸钙在食品领域目前的应用及可能的开发途径进行了介绍，预测了今后碳酸钙在食品领域的发展方向。     

循环流化床锅炉掺烧高炉煤气的应用

介绍了高炉煤气的主要燃烧特性，分析了高炉煤气在循环流化床锅炉中掺烧时对炉膛换热、过热蒸汽温度、锅炉负荷、热效率、分离装置以及环境的影响，并提出了消除不良影响的相应措施。     

流化床生活垃圾焚烧炉污染物排放监控管理

依据生活垃圾循环流化床燃烧热电厂竣工环保验收及例行环保监测数据,提出了影响生活垃圾焚烧过程特征污染物排放的主要因素是炉温和燃烧过程的喷钙与脱氯,建议增加炉温在线监测为生活垃圾焚烧污染物排放的管理措施,在例行监测项目中增加粉煤灰钙含量监测,保证生活垃圾的完全燃烧、较高脱氯效率,降低二噁英的产生与排放。     

环保,高效,节能的天车通过式集烟罩

文章介绍了天车通过式电炉烟气捕集罩的原理及设计要点,与传统的屋顶罩相比,它投资低,能耗低,烟气捕集率高,是符合我国国情的较为理想的适用于大、中型超高功率电炉的烟气捕集罩,具有广泛的推广前景。     

果树树干补钙技术与效果

通过对果树树干进行注射补钙技术与效果的研究结果表明：补钙时期、补钙剂量不同,其产生的效果各异。利用树干注射补钙技术可增加果实中的钙含量,延长果品贮藏期,增加单果重,防止柚子、樱桃等果实的裂果病。该技术具有使用安全补钙效果好、易操作、成本低、应用范围广等特点。