不同种类生物质对工业硅球团性能影响的研究  

Research on Effect of Different Biomass on Performances of Industrial Silicon Pellets

作　　者：杨妮[1] 谢刚[2] 李荣兴[1] 俞小花[1] 和晓才[2] 姚云[2] 包崇军[2] 

机构地区：[1]昆明理工大学冶金与能源工程学院,昆明650093 [2]昆明冶金研究院,昆明650021

出　　处：《昆明理工大学学报（自然科学版）》2015年第1期5-11,共7页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(51204084;51374118);云南省对外科技合作项目(2013IA009);云南省应用基础研究计划项目(2011FZ302)

摘　　要：实验以洗精煤、木炭粉、石油焦、微硅粉为原料,并与改性后的稻壳、玉米秸秆、小麦秸秆或水稻秸秆混合,制备生物质工业硅球团.研究了不同种类生物质含量对湿球抗压强度、干球抗压强度、抗碎率、热强度与孔隙率的影响,并与市购的R粘结剂制备的球团性能进行比较.实验结果表明:当以水稻秸秆为生物质时,制备的生物质球团湿球抗压强度为1 215.6 N,干球抗压强度为5 230.8 N,抗碎率为80.36%,热强度为94.40%,孔隙率为24.39%.与R制备的球团相比,湿球抗压强度提高74.47%,干球抗压强度降低25.11%,抗碎率降低13.32%,热强度提高39.15%,孔隙率提高9.20%,在工业硅生产中可以考虑与木质素磺酸钠、淀粉等粘结剂复合使用.In this paper,anthracite fine,petroleum coke powders,charcoal powders,silica fume as raw materials and rice husk,corn straw,wheat straw or rice straw as binder are used to prepare industrial silicon pellets as carbonaceous reducing agent. The effects of different biomass on compressive strength of fresh pellets and air dried pellets,the heat intensity,the shatter strength,and porosity of pellets are then researched. The performances of four kinds pellets are compared with pellets made from R binder purchased from the market. The results show that： when rice straw is used as biomass,the performances of the pellets are as follows： compressive strength of fresh pellets and air dried pellets are 1 215. 6 N and 5 230. 8 N respectively,the shatter strength is80. 36%,the heat intensity 94. 40%,and porosity 24. 39%. Compared with those of pellets made from R binder,compressive strength of fresh pelletizing is increased by 74. 47%,compressive strength of air dried pellets and the shatter strength drop by 25. 11% and 13. 32% respectively,while the heat intensity and porosity are increased by 39. 15% and 9. 20%. The pellets using biomass and lignin sulfonate or different kinds of starch together as compound binder could be considered in the actual production.

关 键 词：工业硅 球团 生物质 

分 类 号：TF09[冶金工程—冶金物理化学]