天然气化工2018，Vol.43Issue(3)：39-42,49,5.
低变质粉煤粒度对型煤型焦强度的影响
Effect of the size of low metamorphic pulverized coal on strength of briquette and formed coke
摘要
Abstract
A series of briquettes and formed cokes were prepared by using Shanxi fat coal, Shanxi 4#prime coking coal and the corn stalk binders modified by three solutions with different concentrations of NaOH as raw materials and changing the particle size of low metamorphic pulverized coal. The effect of the size of low metamorphic pulverized coal and concentrations of NaOH on the strength of briquette and formed coke were studied. The results showed that the briquette prepared from the corn stalk binder modified by NaOH solution of 2.5%by mass and the pulverized coal with the size of 3-0.425mm had higher compressive strength (＞3100N/piece) and fall strength (＞98%), and the formed coke prepared from the corn stalk binder modified by NaOH solution of 2.0%by mass and the pulverized coal with the size of 3-0.425mm had higher compressive strength (＞2000N/piece) and fall strength (＞98%). As more binder enters into the large voids of coarse pulverized coal, the coal particles are well infiltrated, surrounded and fixed, and co-participate in carbonaceous skeleton formation of the formed coke, ensuring the strength of briquette and formed coke. When the particle size of pulverized coal is less than 0.425mm, the strengths of briquette and formed coke are greatly reduced.关键词
粉煤/型煤/型焦/粒度,粘结剂/强度Key words
pulverized coal/briquette/formed coke/particle size/binder/strength分类
化学工程引用本文复制引用
陈娟,李健,亢玉红,张智芳,郝华睿,刘皓..低变质粉煤粒度对型煤型焦强度的影响[J].天然气化工,2018,43(3):39-42,49,5.基金项目
陕西省工业攻关项目(2013k11-11) （2013k11-11）
陕西省教育厅项目(16JK1891) （16JK1891）
陕西省教育厅重点实验室科研计划项目(16JS123) （16JS123）
陕西省教育厅协同创新、服务地方计划(15JF035) （15JF035）
陕西省低变质煤洁净利用重点实验室开放基金项目(2014SKL-DBM012) （2014SKL-DBM012）
