基于响应面法的煤矸石充填料浆流变特性实验研究

孙凯华, 胡彦飞, 赵旭. 基于响应面法的煤矸石充填料浆流变特性实验研究[J]. 矿产保护与利用, 2024, 44(2): 11-21. doi: 10.13779/j.cnki.issn1001-0076.2024.02.002
引用本文: 孙凯华, 胡彦飞, 赵旭. 基于响应面法的煤矸石充填料浆流变特性实验研究[J]. 矿产保护与利用, 2024, 44(2): 11-21. doi: 10.13779/j.cnki.issn1001-0076.2024.02.002
SUN Kaihua, HU Yanfei, ZHAO Xu. Experimental Study on Rheological Properties of Coal Gangue Slurry Based on Response Surface Method[J]. Conservation and Utilization of Mineral Resources, 2024, 44(2): 11-21. doi: 10.13779/j.cnki.issn1001-0076.2024.02.002
Citation: SUN Kaihua, HU Yanfei, ZHAO Xu. Experimental Study on Rheological Properties of Coal Gangue Slurry Based on Response Surface Method[J]. Conservation and Utilization of Mineral Resources, 2024, 44(2): 11-21. doi: 10.13779/j.cnki.issn1001-0076.2024.02.002

基于响应面法的煤矸石充填料浆流变特性实验研究

  • 基金项目: 中国煤炭科工集团有限公司重点项目(2022−2−ZD004;2023−TD−ZD004 )
详细信息
    作者简介: 孙凯华(1982—),男,河南长葛人,博士,研究员,主要从事采煤沉陷区及矿区生态环境治理技术研究工作,E-mail:skh-533@163.com
  • 中图分类号: TD823.7

Experimental Study on Rheological Properties of Coal Gangue Slurry Based on Response Surface Method

  • 为了使煤矸石料浆满足管道输送的工艺要求,需研究其流动性。采用榆林袁大滩矿煤矸石制备成不同质量分数料浆开展流变特性实验,利用Box−Behnken Design设计试验并用响应面法分析煤矸石固料质量分数、颗粒级配和静置时间三个因素对煤矸石充填料浆流变特性指标的影响。实验分析得到的最优煤矸石浆体配合比为:固料质量分数72%,颗粒级配为4.75~1.18 mm粒级占30%,1.18 ~0.425 mm粒级占40%,0.425~0.075 mm粒级占10%,小于0.075 mm粒级占20%。该料浆的屈服剪切应力范围为103.02 ~131.645 Pa,塑性黏度的范围为0.54 ~0.64 Pa·s,且此配合比随着静置时间的增加固料沉降量增加较小,是较为合理的煤矸石浆体料浆配比。

  • 加载中
  • 图 1  质量分数对屈服剪切应力的影响

    Figure 1. 

    图 2  质量分数对塑性黏度的影响

    Figure 2. 

    图 3  粒径级配对屈服剪切应力的影响

    Figure 3. 

    图 4  粒径级配对塑性黏度的影响

    Figure 4. 

    图 5  残差正态分布

    Figure 5. 

    图 6  D=f(A,B)等高线图

    Figure 6. 

    图 7  D=f(A,B)响应面图

    Figure 7. 

    图 8  残差正态分布

    Figure 8. 

    图 9  E=f(A,B)等高线图

    Figure 9. 

    图 10  E=f(A,B)响应面图

    Figure 10. 

    图 11  屈服剪切应力拟合曲线

    Figure 11. 

    图 12  塑性黏度拟合曲线

    Figure 12. 

    表 1  固料级配方案

    Table 1.  Aggregate grading scheme

    方案粒径粒级1粒级2粒级3粒级4
    级配140%30%20%10%
    级配235%35%15%15%
    级配330%40%10%20%
    级配425%25%25%25%
    下载: 导出CSV

    表 2  粒径级配特征指标

    Table 2.  Characteristic indices of particle size grading

    编号 d10 /μm d60/μm d60/μm d90/μm 中值粒径d50/μm 不均匀系数 Cu 曲率系数 Cc
    级配1 35 340 1200 3350 835 34.3 2.75
    级配2 15 300 1050 3190 750 70.0 5.71
    级配3 85 270 960 3000 680 11.3 0.89
    级配4 55 80 625 2750 380 11.4 0.19
    下载: 导出CSV

    表 3  质量分数60%、65%下的充填料浆流变参数

    Table 3.  Rheological parameters of filling paste at 60% mass fraction

    静置时间/min流变指标质量分数60%质量分数65%
    级配1级配2级配3级配4级配1级配2级配3级配4
    0μ/(Pa·s)0.0720.0810.0710.0510.1450.1490.2130.147
    τ0/Pa1.7773.5125.2455.7412.2115.83211.59322.36
    n11111111
    R20.9630.9520.9430.880.8510.9870.950.949
    20μ/(Pa·s)0.0420.3840.0540.0580.110.9450.1560.111
    τ0/Pa6.6918.4129.06412.15115.73910.14325.16118.904
    n10.5031110.52711
    R20.7310.8750.9280.970.680.9490.9470.984
    40μ/(Pa·s)0.8890.5370.4260.0650.1260.6230.1590.101
    τ0/Pa0.5597.29414.5899.97818.31416.3532.72420.899
    n0.480.4950.607110.54611
    R20.9260.8840.9440.9890.9980.8990.9420.99
    60μ/(Pa·s)1.4410.3510.2630.10.8981.4841.6430.626
    τ0/Pa1.6826.39311.6259.04420.39410.80420.66617.029
    n0.330.5860.69710.6710.4020.4741
    R20.7930.8640.9750.9850.9220.9610.9680.989
    下载: 导出CSV

    表 4  质量分数70%、75%下的充填料浆流变参数

    Table 4.  Rheological parameters of filling paste at 60% mass fraction

    静置时间/min流变指标质量分数70%质量分数75%
    级配1级配2级配3级配4级配1级配2级配3级配4
    0μ/(Pa·s)0.4720.2840.3650.7820.6750.8861.0431.921
    τ0/Pa32.24726.50138.86379.573129.522213.562237.217283.754
    n11111111
    R20.9640.9740.9750.9640.9030.9390.9710.982
    20μ/(Pa·s)0.9130.3020.3750.5270.431.0941.0761.373
    τ0/Pa52.8630.29146.485109.115185.069150.322238.222414.154
    n0.831111111
    R20.8910.9720.980.9590.7880.970.9690.966
    40μ/(Pa·s)0.4540.2930.3420.5760.4620.7050.9121.454
    τ0/Pa49.49335.41555.089110.05120.564216.489256.454442.57
    n11111111
    R20.930.9670.9640.9650.8620.930.9520.96
    60μ/(Pa·s)0.4010.2310.3170.3420.4340.8220.851.6
    τ0/Pa48.60345.83950.116130.457114.887156.438252.082442.887
    n11111111
    R20.9250.9580.9810.930.8350.9440.9440.949
    下载: 导出CSV

    表 5  响应面实验的因素和水平

    Table 5.  Factors and levels of response surface test

    影响因素因素水平
    −101
    质量分数/%A657075
    级配方案B234
    静置时间/minC02040
    下载: 导出CSV

    表 6  实验方案及结果

    Table 6.  Test scheme and results

    编号 质量分数/%-A 级配方案-B 静置时间/min-C 屈服剪切应力/Pa-D 塑性黏度/Pa·s-E
    1 70 3 20 46.485 0.375
    2 65 3 40 32.724 0.159
    3 70 4 0 79.573 0.782
    4 75 3 0 237.217 1.043
    5 65 2 20 10.143 0.945
    6 70 3 20 46.485 0.375
    7 70 3 20 46.485 0.375
    8 75 4 20 414.154 1.373
    9 70 2 40 35.415 0.293
    10 75 3 40 256.454 0.912
    11 65 3 0 11.593 0.213
    12 75 2 20 150.322 1.094
    13 65 4 20 18.904 0.111
    14 70 2 0 26.501 0.284
    15 70 3 20 46.485 0.375
    16 70 3 20 46.485 0.375
    17 70 4 40 110.05 0.576
    下载: 导出CSV

    表 7  多种模型方差分析比较

    Table 7.  Variance analysis and comparison of multiple models

    方差来源 平方和 自由度 均方 F 概率>F
    平均值 1.535E+005 1 1.535E+005 / /
    线性模型 1.420E+005 3 47349.96 11.51 0.0006
    2FI 16382.44 3 5460.81 1.47 0.2805
    二次方 33532.14 3 11177.38 22.04 0.0006(建议采用)
    三次方 3550.23 3 1183.41 6.366E+007 < 0.0001(失真)
    残差 0.000 4 0.000 / /
    总计 3.490E+005 17 20531.17 / /
    下载: 导出CSV

    表 8  R2综合分析

    Table 8.  R2 comprehensive analysis

    类型 标准偏差 R2 R2校正值 R2预测值 预测残差平方和
    线性模型 64.13 0.7265 0.6634 0.4857 1.006E+005
    2FI 60.90 0.8103 0.6965 0.2671 1.433E+005
    二次方程 22.52 0.9818 0.9585 0.7095 56803.63(建议采用)
    三次方程 0.000 1.0000 1.0000 / /(失真)
    下载: 导出CSV

    表 9  响应面分析拟合回归方程的方差分析结果

    Table 9.  Variance analysis results of response surface analysis and fitting regression equation

    方差来源平方和自由度均方FPro>F
    模型1.918E+005727406.7667.26< 0.0001(显著)
    A−质量分数1.212E+00511.212E+005297.49< 0.0001
    B−级配方案20030.01120030.0149.16< 0.0001
    C−静置时间795.191795.191.950.1959
    AB16265.30116265.3039.920.0001
    A231689.50131689.5077.77< 0.0001
    B2965.361965.362.370.1581
    C26.6616.660.0160.9011
    残差3667.369407.48
    失拟3667.365733.47
    总差0.00040.000
    下载: 导出CSV

    表 10  多种模型方差分析比较

    Table 10.  Variance analysis and comparison of multiple models

    方差来源 平方和 自由度 均方 F Pro>F
    平均值 5.49 1 5.49
    线性模型 1.15 3 0.38 4.29 0.0260(建议采用)
    2FI 0.32 3 0.11 1.29 0.3305
    二次方 0.61 3 0.20 6.24 0.0217(建议采用)
    三次方 0.23 3 0.076 6.366E+007 < 0.0001(失真)
    残差 0.000 4 0.000
    总计 7.79 17 0.46
    下载: 导出CSV

    表 11  R2综合分析

    Table 11.  R2 comprehensive analysis

    类型 标准偏差 R2 R2校正值 R2预测值 预测残差
    平方和
    线性模型 0.30 0.4976 0.3817 0.0266 2.24(建议采用)
    2FI 0.29 0.6378 0.4205 −0.5355 3.53
    二次方程 0.18 0.9014 0.7747 −0.5770 3.63(建议采用)
    三次方程 0.000 1.0000 1.0000 +(失真)
    下载: 导出CSV

    表 12  响应面分析拟合回归方程的方差分析结果

    Table 12.  Variance analysis results of response surface analysis and fitting regression equation

    方差来源 平方和 自由度 均方 F Pro>F
    模型 2.06 7 0.29 11.05 0.0009(显著)
    A−质量分数 1.12 1 1.12 42.04 0.0001
    B−级配方案 6.385E−003 1 6.385E−003 0.24 0.6362
    C−静置时间 0.018 1 0.018 0.68 0.4295
    AB 0.31 1 0.31 11.62 0.0078
    A2 0.38 1 0.38 14.40 0.0043
    B2 0.18 1 0.18 6.57 0.0306
    C2 0.038 1 0.038 1.43 0.2624
    残差 0.24 9 0.027
    失拟 0.24 5 0.048
    总差 0.000 4 0.000
    下载: 导出CSV

    表 13  响应面优化方案

    Table 13.  Response surface optimization scheme

    优化
    方案
    质量
    分数/%
    级配
    方案
    静置
    时间/min
    屈服剪切
    应力/Pa
    塑性黏
    度/(Pa·s)
    期望度
    1 72 3 2 112.267 0.572457 1
    2 72 3 8 123.303 0.628136 1
    3 72 3 9 110.728 0.589706 1
    4 72 3 10 109.074 0.58614 1
    5 72 3 11 108.335 0.58484 1
    6 72 3 14 126.091 0.640945 1
    7 72 3 22 106.888 0.553354 1
    8 72 3 22 103.02 0.541263 1
    9 72 3 29 123.19 0.561565 1
    10 72 3 30 131.645 0.578399 1
    11 73 3 0 130.234 0.62256 1
    12 73 3 0 124.139 0.602834 1
    13 73 3 8 152.45 0.723976 1
    14 73 3 15 133.681 0.66367 1
    15 73 3 19 152.298 0.713418 1
    16 73 3 22 134.114 0.640826 1
    17 73 3 24 163.888 0.726975 1
    18 73 3 28 163.626 0.697976 1
    19 73 3 30 171.065 0.704286 1
    20 73 3 30 161.381 0.678723 1
    21 73 3 35 166.335 0.637975 1
    22 73 3 36 141.755 0.553152 1
    23 73 3 37 176.693 0.645834 1
    24 74 3 3 194.509 0.846104 1
    25 74 3 8 196.798 0.867696 1
    26 74 3 9 177.335 0.805938 1
    27 74 3 13 197.427 0.873265 1
    28 74 3 15 180.814 0.816856 1
    29 74 3 16 196.841 0.868063 1
    30 74 3 17 178.438 0.80547 1
    31 74 3 22 181.045 0.796917 1
    32 74 3 27 179.541 0.762521 1
    33 74 3 34 198.427 0.758976 1
    下载: 导出CSV
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出版历程
收稿日期:  2024-03-06
刊出日期:  2024-04-15

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