CAJ | 학술논문

试验研究了市售烧结矿颗粒的形貌特征及其构成的密堆积填充床特征.研究显示颗粒形貌对填充床堆积特性、流体穿过填充床的流动特性的影响确实存在.研究发现：烧结矿颗粒相对规则,颗粒越小球形度越高;相同烧结矿颗粒不同密堆积的空间空隙分布不同;操作阻力或压降测量显示了奇怪的数据,即阻力系数先升后降;试验范围内,最高操作速度下压降与床高成线性关系,速度降低后这种线性关系不复存在.
시험연구료시수소결광과립적형모특정급기구성적밀퇴적전충상특정.연구현시과립형모대전충상퇴적특성、류체천과전충상적류동특성적영향학실존재.연구발현：소결광과립상대규칙,과립월소구형도월고;상동소결광과립불동밀퇴적적공간공극분포불동;조작조력혹압강측량현시료기괴적수거,즉조력계수선승후강;시험범위내,최고조작속도하압강여상고성선성관계,속도강저후저충선성관계불복존재.
Characteristics of morphology,packing and flow resistance of large size sinter particle and its packed bed have been studied experimentally.It has been proved that particle morphology has real effect on packing feature in flow and pressure drop or resistant coefficient.The results show： firstly,the smaller the particle size,the higher particle sphericity;secondly,it has different porosity distribution for the same group of particle according to imagine analysis result;and the thirdly,porosity distribution has some difference in space which leads to odd resistance coefficient or pressure drop.In the maximum gas velocity of the experiment study,a linear relationship between pressure drop and bed height was seen,but it did not exist when operation gas velocity decreases.