Monday, October 3, 2022
Sunday, September 11, 2022
问题:简述焦炭按生产方法如何分类,并说明何种焦炭更适合用于高炉冶炼。...
Sunday, September 11, 2022
问题:烧结料中配加()过高,会使FeO升高、还原性变差。...
Monday, September 12, 2022
Monday, September 12, 2022
问题:提高铁矿产品品位及降低焦炭()是降低入炉料SiO2含量的主要途径。A、灰分B、硫份C、水分D、粒度...
Tuesday, December 5, 2023
问题:炼钢用生铁中L08铁的含硅量是()。A、≤0.45%B、0.45-0.85%C、0.95-1.25%...
Wednesday, April 12, 2023
问题:炼钢生铁一级品率是指生铁中的[S]()的铁占总合格铁量的百分率。A、≤0.02%B、≤0.03%C、≤0.04%...
Friday, February 9, 2024
Sunday, September 11, 2022
问题:预先干燥是指样品过湿、过粘,不能筛分、破碎、缩分时,可在()品质变化温度下进行干燥。A、高于B、高于等于C、低于...
Wednesday, August 30, 2023
Friday, December 15, 2023
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:筛分终点是指继续筛分1min,下筛矿石不超过装样量的()为筛分终点。A、0.1%B、0.5%C、1.0%...
Tuesday, November 22, 2022
问题:《球团矿技术条件》抗压强度二级品()。A、≥1800NB、<1800NC、<2000ND、≥2000N...
Wednesday, March 15, 2023
Sunday, September 11, 2022
Sunday, September 11, 2022
Monday, September 12, 2022
Monday, September 12, 2022
问题:一高炉日检验生铁1200吨,消耗焦炭400吨,已知焦炭水分为3....
Sunday, September 11, 2022