高炉除尘灰碳质反应性研究.pdf

Metallurgical Engineering 冶金工程, 2017, 4(3), 165-172 Published Online September 2017 in Hans. /journal/meng /10.12677/meng.2017.43024 Study on Carbon Reactivity of Blast Furnace Dust Shiqin Li, Xiang Yuan, Yang Li University of Science and Technology Beijing, Beijing th th th Received: Jul. 28 , 2017; accepted: Aug. 18 , 2017; published: Aug. 24 , 2017 Abstract First, the bag ash, gravity ash, pulverized coal sintering machine were made of carbon pellets, high temperature self-reduction experiment. The microcrystalline structure was studied after pickling, bagging ash, gravity ash and pulverized coal. The carbonation reaction of the three carbonaceous materials after the pickling was carried out by differential thermal equipment. Finally, the kinetic calculation was carried out. The results show that the rate of metallization after reduction of car- bonaceous pellets is pulverized coal pulverized coal particles bag ash carbonaceous pellets gravity gray carbon pellets. The degree of ordering of pulverized coalw, bag ashw and gravitational ashw carbonized microcrystals increased in turn, and the gasification reactivity decreased in turn. The apparent activation energies of bag grayw, gravity grayw and pulverized coalw were 136.64 kJ/mol, 88.00 kJ/mol and 181.12 kJ/mol, respectively, calculated using the homogeneous model. Keywords Blast Furnace Dust, Carbonaceous, Reductive 高炉除尘灰碳质反应性研究 李世钦，袁 骧，李 洋 北京科技大学，北京 收稿日期：2017年7月28 日；录用日期：2017年8月18 日；发布日期：2017年8月24 日 摘 要 先以布袋灰、重力灰、煤粉分别于烧结机尾灰制成含碳球团，进行高温自还原实验。再将布袋灰、重力 灰、煤粉进行酸洗后研究其微晶结构，并通过差热设备进行碳的气化反应实验，最后进行动力学计算。 文章引用: 李世钦, 袁骧, 李洋. 高炉除尘灰碳质反应性研究[J]. 冶金工程, 2017, 4(3): 165-172. DOI: 10