幸福宣言含砷铁矿石烧结脱砷中含砷气体的固结研究
摘 要
我国藏有大量含砷铁矿石，含砷铁矿石在烧结工序中，多数砷以气态物质被脱除进入大气中，严重污染了环境。研究钢铁冶炼中烟气里砷的去除是解决砷污染有效的方法，也是阻止砷进入环境最有效的途径。
本实验用FactSage软件进行烧结脱砷固砷及热力学模拟计算，得到相关的热力学数据，包括产物的量、存在状态、种类等。利用origin软件对得到的实验数据进行处理，得到关于碳含量、温度、氧气压的图像，对得到的这些图像进行分析，并利用烧结杯烧结脱砷固砷，得到关于脱砷固结的相关结论如下：
（1）在氧化钙固结含砷铁矿石里的含砷气体时，固结产物有砷酸钙；
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（2）影响烧结气态产物脱砷的因素有烧结过程中碳含量、氧化钙含量、烧结温度、抽风负压以及氧气的给予量。 氧化钙可以促进固结作用的发生；模拟发现抽风负压对固结的影响并不大，但抽风负压可能破坏含砷烟气固结反应的动力学，试验发现可以抑制砷固结；当氧含
量在500g~2500g时，在氧含量比较低的时候，温度对固结的影响很小，在氧含量高的时候影响较大，会抑制固结作用的发生；氧含量可以促进含砷气体的固结；适当一二年级古诗碳含量可以促进固结作用的发生。
关键词：热力学；烧结脱砷；固结研究；氧化钙除砷
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Abstract
China's posssion of large amounts of arnic bearing iron ore containing arnic and iron ore in the sintering process, the majority of arnic in gaous substances are removed into the atmosphere, the rious pollution of the environment. Arnic removal from flue gas in iron and steel smelting is the most effective way to resolve the arnic pollution and to prevent arnic from entering the environment..
In this experiment, the FactSage software was ud to simulate the arnic arnic and the thermodynamic simulation, and the relevant thermodynamic data were obtained,
including the amount of the product, the state of existence, the species, etc.. The Origin software to process the data obtained by the experiments to get images of carbon content, temperature, oxygen pressure, to get the image analysis, and the u of sintering cup arnic removal, get on the removal of arnic consolidation of the relevant conclusions are as follows:
(1) gas containing arnic bearing iron ores in the calcium oxide consolidation, consolidation product of calcium arnate;北京活动策划
(2) affect the result of sintering gas removal of arnic in sintering process of carbon content, calcium oxide content, sintering temperature, suction pressure and oxygen given. Calcium oxide can promote the consolidation effect; simulation, it is found that the suction pressure of consolidation does not have a significant impact, but the suction pressure may damage with the kinetics of the reaction of arnic consolidation of flue gas. The results showed that the arnic consolidation can be suppresd. When the oxygen content in the 500g~2500g. When the oxygen content is low, the influence of tem
perature on the consolidation is very small, in the high oxygen content affect larger, will inhibit the consolidation effect; oxygen content can promote containing arnic gas consolidation; proper carbon content can promote the consolidation effect.
调查与分析Keywords: 年金现值计算公式Thermodynamics; Sintering arnic removal; Consolidation study; Arnic removal from calcium oxide
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