摘要
以煤矸石粉和熟焦宝石粉为原料制备了低密度陶粒支撑剂,研究了烧结温度对陶粒支撑剂材料的物相组成、微观结构和力学性能的影响。研究表明:以煤矸石和熟焦宝石为原料制备的陶粒支撑剂,随着烧结温度的升高,抗破碎能力不断提高;在1400℃时,固相反应完全,烧成后的支撑剂在52MPa闭合压力下的破碎率为8.87%,满足行业标准SY/T5108-2014要求。根据XRD和SEM检测结果知,所制备支撑剂的主晶相均为莫来石相和方石英相;随着烧结温度的升高,大量短棒状莫来石和颗粒状石英交叉生长,显微结构致密,力学性能优良。
Calcined flint clay and solid waste coal gangue were used to prepare low-density ceramic proppants.The effects of sintering temperature on phase compositions,microstructure and mechanical properties of ceramic proppants were investigated.The results show that the anti-crushing ability of the ceramic proppants prepared from coal gangue and calcined flint clay increases continuously with the increase of sintering temperature.At 1400℃,the solid phase reaction is complete.The breakage ratio of the proppants obtained is 8.87%at 52 MPa closed pressure,which meets the requirements of SY/T5108-2014.According to the results of XRD and SEM,the main crystal phase of the prepared proppants is mullite phase and the secondary crystal phase is cristobalite phase.With the increase of sintering temperature,a large number of short rod-shaped mullites and granular quartzs cross-grow resulted in compact and excellent mechanical properties of microstructure of ceramic proppants.
作者
黄彪
高云峰
田玉明
邹欣伟
白频波
刘洋
HUANG Biao;GAO Yun-feng;TIAN Yu-ming;ZOU Xin-wei;BAI Pin-bo;LIU Yang(School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Shanxi Engineering Vocational and Technical College,Taiyuan 030009,China;Changqing Petroleum Fracturing Proppant Co.,Ltd,Shanxi Yangquan 045240,China;China Petroleum and Chemical Corporation Zhongyuan Oilfield Branch Natural Gas Treatment Plant,Henan Puyang 457000,China)
出处
《太原科技大学学报》
2020年第3期220-223,231,共5页
Journal of Taiyuan University of Science and Technology
基金
山西省研究生联合培养基地人才培养项目(项目号2018JD34)
山西省科技重大专项项目(20181101001)。
关键词
陶粒支撑剂
煤矸石
烧结温度
破碎率
ceramic proppant
coal gangue
sintering temperature
breakage ratio
