CAJ | 학술논문

根据煤粉无焰氧化燃烧的条件与技术要求,设计定制了一圆形横截面的煤粉气流床气化实验炉.并在炉膛上对冲布置了三层煤粉喷嘴、切向布置了三层空气喷嘴.在实验炉上分别进行了冷态流场实验与典型工况下的煤粉无焰氧化气化特性实验.研究结果表明,在三层煤粉喷嘴投入运行且氧/碳原子比为1.0左右时,气化炉的气化特性最佳,有效气组分（CO＋H2）浓度、合成气热值和冷煤气效率均达最大值,分别为30.3%,4 477kJ/Nm3和75.29%.
근거매분무염양화연소적조건여기술요구,설계정제료일원형횡절면적매분기류상기화실험로.병재로당상대충포치료삼층매분분취、절향포치료삼층공기분취.재실험로상분별진행료랭태류장실험여전형공황하적매분무염양화기화특성실험.연구결과표명,재삼층매분분취투입운행차양/탄원자비위1.0좌우시,기화로적기화특성최가,유효기조분（CO＋H2）농도、합성기열치화랭매기효솔균체최대치,분별위30.3%,4 477kJ/Nm3화75.29%.
An experimental entrained flow coal gasification furnace with a circular section was customized according to the conditions for flameless combustion of pulverized coal and three tiers of PC nozzle,and three tiers of air nozzle are arranged in the furnace opposedly and tangentially respectively.Cold air flow tests in the furnace and PC gasification tests based on the flameless combustion under different typical conditions were carried out and the experimental results show that PC gasification is optimum when the three tiers of PC nozzle are simultaneously in operation and the atom ratio of O2/C is about 1.0 and meanwhile,the concentration of CO+H2,the calorific value of the synthesized gas and the efficiency of the cold coal gas are all at their maximum value,i.e.30.3%,4477kJ/Nm3 and 75.29% respectively.