CAJ | 학술논문

以平朔煤作为中硫煤,选用三个典型低硫煤与其进行不同比例掺配,并研究了煤种对混煤固硫效果的影响.结果表明：混煤固硫率的大小与（Ca＋Mg）/S摩尔比和灰中（CaO＋MgO）的含量有关;低、低（Ca＋Mg）/S摩尔比煤掺配后,混煤的（CaO＋MgO）利用率随（Ca＋Mg）/S摩尔比的增大呈整体下降趋势,降硫效果主要取决于配煤对硫分的稀释作用;低、高（Ca＋Mg）/S摩尔比煤掺配后,混煤的（CaO＋MgO）利用率在（Ca＋Mg）/S摩尔比为0.8～1时达到最大值,降硫效果取决于配煤对硫分的稀释作用和自身固硫作用.
이평삭매작위중류매,선용삼개전형저류매여기진행불동비례참배,병연구료매충대혼매고류효과적영향.결과표명：혼매고류솔적대소여（Ca＋Mg）/S마이비화회중（CaO＋MgO）적함량유관;저、저（Ca＋Mg）/S마이비매참배후,혼매적（CaO＋MgO）이용솔수（Ca＋Mg）/S마이비적증대정정체하강추세,강류효과주요취결우배매대류분적희석작용;저、고（Ca＋Mg）/S마이비매참배후,혼매적（CaO＋MgO）이용솔재（Ca＋Mg）/S마이비위0.8～1시체도최대치,강류효과취결우배매대류분적희석작용화자신고류작용.
To study the sulfur-retention characteristics of different coal mixtures,experimental tests were carried out by blending Pingshuo mid-sulfur coal with 3 typical low-sulfur coals in different proportions.Results indicate that the efficiency of sulfur-retention has relations with the molar ratio of（Ca＋Mg）/S in coal and the content of（CaO＋MgO） in ash.When the mid-sulfur coal of low（Ca＋Mg）/S ratio is blended with a low-sulfur coal of low（Ca＋Mg）/S ratio,the utilization rate of（CaO＋MgO） will decrease with rising（Ca＋Mg）/S ratio in the coal mixture,in which case,the sulfur removal effect mainly comes from the dilution of sulfur by the blending coal;whereas when the mid-sulfur coal of low（Ca＋Mg）/S ratio is blended with a low-sulfur coal of high（Ca＋Mg）/S ratio,the utilization rate of（CaO＋MgO） will reach the highest at a（Ca＋Mg）/S molar ratio of 0.8-1,in which case,the sulfur removal effect comes from both the sulfur dilution and sulfur retention by the blending coal.