一步直接烧结制备全固废煤气化渣微晶玻璃的性能变化研究

李宇; 张弦; 刘治平; 王云飞; 张铁柱; 张宇轩; 欧阳顺利

硅酸盐通报, 2023, 42 (3): 978, 网络出版: 2023-04-14

一步直接烧结制备全固废煤气化渣微晶玻璃的性能变化研究

Properties Change of All Solid Waste Coal Gasification Slag Glass-Ceramics Prepared by One Step Direct Sintering

论文大纲

李宇 ^1,2张弦 ²刘治平 ²王云飞 ²张铁柱 ¹张宇轩 ¹欧阳顺利 ^3,*

作者单位

¹ 内蒙古科技大学材料与冶金学院, 包头 014000

² 鄂尔多斯应用技术学院化学工程系, 鄂尔多斯 017000

³ 广州航海学院, 广州 510725

摘要

以煤气化渣为原料, 采用一步直接烧结法制备了全固废煤气化渣微晶玻璃, 并研究了烧结温度和时间对全固废煤气化渣微晶玻璃晶相演变、机械物理性能和微观结构的影响。结果表明, 煤气化渣具有较强的析晶能力, 得到的微晶玻璃主晶相为钙长石相。在800~1 150 ℃, 随烧结温度的升高, 微晶玻璃结晶度先增高后有所降低。过高的烧结温度会使微晶玻璃内部出现片状结构, 理化性能下降。烧结温度在1 110~1 120 ℃, 微晶玻璃晶粒细小且分布密集, 表现出较好的物理性能。烧结时间对样品性能的影响较小。在烧结温度1 120 ℃、烧结时间2 h条件下, 微晶玻璃维氏硬度为6.92 GPa, 抗折强度为38.29 MPa, 抗压强度为432.72 MPa,体积密度2.618 g/cm3, 吸水率为0.21%, 耐酸碱性分别为3.13%和0.92%, 力学性能较优, 但吸水率及化学稳定性方面还有较大提升空间。

Abstract

All solid waste coal gasification slag glass-ceramics were prepared by one-step direct sintering with coal gasification coarse slag as the raw material. The effects of sintering temperature and time on crystal phase evolution, mechanical and physical properties and microstructure of all solid waste coal gasification slag glass-ceramics were studied. The results show that the coal gasification slag has strong crystallization tendency, and anorthite is the main crystal phase. As the sintering temperature increases in the range of 800~1 150 ℃, the crystallinity of glass-ceramics increases firstly and then decreases. Flake structure appears in the glass-ceramics and the physical and chemical properties decrease when the sintering temperature is too high. In the range of 1 110~1 120 ℃, the glass-ceramics are fine and densely distributed, and show good physical properties. However, the sintering time has little effect on the properties of samples. When the sintering temperature is 1 120 ℃ and sintering time is 2 h, Vickers hardness of glass-ceramics is 6.92 GPa, flexural strength is 38.29 MPa, compressive strength is 432.72 MPa, bulk density is 2.618 g/cm3, water absorption is 0.21%, and acid and alkali resistance are 3.13% and 0.92%, respectively. Excellent mechanical properties are achieved, however, there is still room for improvement in water absorption and chemical stability.

参考文献

[1] DU M J, HUANG J J, LIU Z Y, et al. Reaction characteristics and evolution of constituents and structure of a gasification slag during acid treatment［J］. Fuel, 2018, 224: 178-185.

[2] QU J S, ZHANG J B, LI H Q, et al. A high value utilization process for coal gasification slag: preparation of high modulus sodium silicate by mechano-chemical synergistic activation［J］. Science of the Total Environment, 2021, 801: 149761.

[3] 王钦, 王娜, 黄欣, 等. 微晶玻璃研究进展［J］. 无机盐工业, 2022, 54(8): 1-11.

[4] 孙道胜, 管艳梅, 刘开伟, 等. 烧结法制备煤矸石微晶玻璃及其烧结性能研究［J］. 材料导报, 2016, 30(18): 134-137.

[5] YANG M, GUO Z X, DENG Y S, et al. Preparation of CaO-Al2O3-SiO2 glass ceramics from coal gangue［J］. International Journal of Mineral Processing, 2012, 102/103: 112-115.

[6] 阎赞, 李峰, 孙武, 等. 钼尾矿微晶玻璃的制备及性能研究［J］. 非金属矿, 2020, 43(6): 43-45.

[7] WANG S H, LI X N, WANG C H, et al. Anorthite-based transparent glass-ceramic glaze for ceramic tiles: preparation and crystallization mechanism［J］. Journal of the European Ceramic Society, 2022, 42(3): 1132-1140.

[8] 陈维铅, 高淑雅, 董亚琼, 等. 烧结法制备金矿尾砂CaO-Al2O3-SiO2微晶玻璃及其性能研究［J］. 硅酸盐学报, 2014, 42(1): 95-100.

[9] KIM J M. Processing and properties of a glass-ceramic from coal fly ash from a thermal power plant through an economic process［J］. Journal of the European Ceramic Society, 2004, 24(9): 2825-2833.

[10] BERNARDO E, CASTELLAN R. Sintered glass-ceramics from mixtures of wastes［J］. Ceramics International, 2007, 33(1): 27-33.

[11] BERNARDO E. Fast sinter-crystallization of a glass from waste materials［J］. Journal of Non-Crystalline Solids, 2008, 354(29): 3486-3490.

[12] 徐长伟, 陈勇, 孟琦涵, 等. 助熔剂对CaO-MgO-Al2O3-SiO2系微晶玻璃烧结和性能的影响［J］. 材料导报, 2015, 29(s2): 443-445+488.

[13] 李志川, 杨一博, 马蒸钊, 等. 利用生活垃圾焚烧飞灰制备全废物基微晶玻璃［J］. 环境工程学报, 2022(6): 1925-1932.

[14] ZENG L, HONG J S, TONG J P, et al. The sintering kinetics and properties of sintered glass-ceramics from coal fly ash of different particle size［J］. Results in Physics, 2019, 15: 102774.

[15] 刘红玉. 陶瓷烧结法制备废渣微晶玻璃建材的研究［D］. 郑州: 郑州大学, 2010.

[16] 龙民. 废玻璃直接烧结法制备透辉石微晶玻璃的研究［D］. 武汉: 武汉理工大学, 2019.

[17] 彭长浩, 卢金山. 利用废料直接烧结制备CaO-Al2O3-SiO2微晶玻璃及其性能［J］. 机械工程材料, 2013, 37(1): 71-76.

[18] PONSOT I, DETSCH R, BOCCACCINI A R, et al. Waste derived glass ceramic composites prepared by low temperature sintering/sinter-crystallisation［J］. Advances in Applied Ceramics, 2015, 114(sup1): S17-S25.

[19] BINHUSSAIN M A, MARANGONI M, BERNARDO E, et al. Sintered and glazed glass-ceramics from natural and waste raw materials［J］. Ceramics International, 2014, 40(2): 3543-3551.

[20] LU J S, LU Z Y, PENG C H, et al. Influence of particle size on sinterability, crystallisation kinetics and flexural strength of wollastonite glass-ceramics from waste glass and fly ash［J］. Materials Chemistry and Physics, 2014, 148(1/2): 449-456.

[21] LU J S, LI Y D, ZOU C M, et al. Effect of heating rate on the sinterability, crystallization, and mechanical properties of sintered glass-ceramics from granite waste［J］. Journal of Thermal Analysis and Calorimetry, 2019, 135(4): 1977-1985.

[22] 吴阳, 赵世永, 李博. 宁东煤气流床气化残渣特性研究［J］. 煤炭工程, 2017, 49(3): 115-118.

[23] 宋瑞领, 蓝天. 气流床煤气化炉渣特性及综合利用研究进展［J］. 煤炭科学技术, 2021, 49(4): 227-236.

[24] 尹洪峰, 汤云, 任耘, 等. Texaco气化炉炉渣基本特性与应用研究［J］. 煤炭转化, 2009, 32(4): 30-33.

[25] 帅航, 尹洪峰, 袁蝴蝶, 等. 煤气化炉渣的高温物相组成演变与黏温特性［J］. 煤炭转化, 2015, 38(3): 44-48.

[26] PENG F, LIANG K M, HU A M. Nano-crystal glass-ceramics obtained from high alumina coal fly ash［J］. Fuel, 2005, 84(4): 341-346.

[27] GERMAN R M, SURI P, PARK S J. Review: liquid phase sintering［J］. Journal of Materials Science, 2009, 44(1): 1-39.

[28] 冯晋阳, 龙民, 陶海征, 等. 透辉石微晶玻璃的低温烧结制备及性能表征［J］. 人工晶体学报, 2019, 48(5): 968-973.

[29] 刘全, 孙红娟, 彭同江, 等. 烧结温度对石棉矿山废石制备微晶玻璃析晶性能的影响［J］. 材料导报, 2022, 36(15): 86-90.

[30] 程金树. 微晶玻璃［M］. 北京: 化学工业出版社, 2006.

[31] ZHENG F, LI M J, WANG J, et al. Effective utilization of extracted titanium tailing to prepare high performance glass-ceramic and their formation mechanism［J］. Ceramics International, 2021, 47(12): 17391-17399.

[32] 谢梦芹, 何峰, 谢峻林. 热处理制度对高炉渣CMAS微晶玻璃结构与性能的影响［J］. 武汉理工大学学报, 2021, 43(5): 21-25.

[33] BERNARDO E, BONOMO E, DATTOLI A. Optimisation of sintered glass-ceramics from an industrial waste glass［J］. Ceramics International, 2010, 36(5): 1675-1680.

[34] 卢金山, 彭长浩, 邓莉萍, 等. 废玻璃和粉煤灰制备微晶玻璃的快速烧结-晶化行为［J］. 材料热处理学报, 2013, 34(1): 26-30.

[35] 吴建锋, 徐晓虹, 张亚涛, 等. 烧结法制备赤泥质微晶玻璃及其结构分析［J］. 武汉理工大学学报, 2009, 31(11): 8-12.

[36] ZHANG Z Z. Effects of crystal refining on wear behaviors and mechanical properties of lithium disilicate glass-ceramics［J］. Journal of the Mechanical Behavior of Biomedical Materials, 2018, 81: 52-60.

[37] 吕建芳, 金哲男, 马致远, 等. 烧结时间对含铅玻璃制备微晶玻璃析晶及性能的影响［J］. 矿冶工程, 2021, 41(2): 125-129+133.

[38] 康俊峰. 花岗岩尾矿建筑微晶玻璃组成、结构与性能的研究［D］. 武汉: 武汉理工大学, 2017.

李宇, 张弦, 刘治平, 王云飞, 张铁柱, 张宇轩, 欧阳顺利. 一步直接烧结制备全固废煤气化渣微晶玻璃的性能变化研究[J]. 硅酸盐通报, 2023, 42(3): 978. LI Yu, ZHANG Xian, LIU Zhiping, WANG Yunfei, ZHANG Tiezhu, ZHANG Yuxuan, OUYANG Shunli. Properties Change of All Solid Waste Coal Gasification Slag Glass-Ceramics Prepared by One Step Direct Sintering[J]. Bulletin of the Chinese Ceramic Society, 2023, 42(3): 978.

一步直接烧结制备全固废煤气化渣微晶玻璃的性能变化研究

关于本站 Cookie 的使用提示

全站搜索

一步直接烧结制备全固废煤气化渣微晶玻璃的性能变化研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索