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  • 资讯-2024-05-26

    上海煤科高端版MG550/1270-WD大功率薄煤层采煤机成功通过内部验收

    5月8日,上海煤科天地采掘研制的高端版1270大功率薄煤层采煤机成功通过内部验收,标志着上海煤科采煤机朝着对标国际一流煤机装备,打造高端产品方向迈出了坚实的一步。此次研发的...

  • 图表-2020-11-24煤矿机电

    MG550/1380-WD型采煤机配套图

    MG550/1380-WD型采煤机配套图

    作者:史春祥

    来源:急倾斜大采高采煤机的研制与应用

    期刊:煤矿机电 - 2019年 - 01期

  • 图表-2024-01-11国际煤炭科学技术学报(英文)

    Summary of laboratory test results of rock mechanical and physical properties with WD cycle treatment

    Table 2

    Table 2. Summary of laboratory test results of rock mechanical and physical properties with WD cycle treatment

    Rock type

    Sample size

    Treatment methods

    Cycle number

    Test results

    Reference

    Wetting

    Drying

    Coal

    CS (Φ50 × 100)

    WW (24 h)

    OD (95 °C/24 h) AD (20 °C/4 h)

    10

    Aw increase; σc, E decrease

    Chen et al. (2019b)

    Granite

    CS (Φ50 × 100)

    WW (24 h)

    OD (105 °C/12 h)

    60

    σc, E decrease

    Chen et al. (2019c)

    Sandstone

    CS (Φ50 × 100)

    WW (24 h)

    OD (105 °C/12 h)

    20

    σc, E, c, Φ decrease

    Liu et al. (2018)

    Granite

    CS (Φ50 × 100)

    WW (24 h)

    OD (105 °C/12 h)

    20

    σc, E, c, Φ decrease

    Qin et al. (2018)

    Sandstone; mudstone

    CS (Φ50 × 100)

    WW (24 h)

    OD (110 °C/12 h)

    40

    Aw increase; σc, E decrease

    Huang et al. (2018)

    Greywacke; Basalt

    CS (Φ50 × 50)

    WW (24 h)

    OD (100 °C/12 h)

    40

    PLI, SDI decrease

    Gratchev et al. (2019)

    Weak muddy intercalation

    CS (Φ61.8 × 20)

    WW (24 h)

    OD (40 °C/45 h)

    6

    τ, c decrease

    He et al. (2020)

    Sandstone

    CS (Length to diameter ratio of 2.5 to 3.0)

    WW (24 h)

    OD (110 °C/12 h)

    40

    σc, decrease

    Khanlari and Abdilor (2015)

    Sandstone

    CS (Φ25 × 50)

    WW (24 h)

    OD (80 °C/2 h)

    50

    Tc, σt, VP decrease

    Sun and Zhang (2019)

    Ignimbrite

    CS (Φ54 × 108)

    WW (24 h)

    OD (105 °C/12 h)

    50

    Aw P increase; Vp, σc, decrease

    Özbek (2014)

    Granitoid rocks

    Rock pieces

    WW (24 h)

    OD (110 °C/24 h)

    40

    SID decrease

    Momeni et al. (2017)

    Sandstone

    CCBD specimen

    WW (48 h)

    OD (105 °C/24 h)

    7

    Keff, σt decrease

    Hua et al. (2017)

    Sandstone

    CSTBD specimen

    WW (48 h)

    OD (105 °C/24 h)

    7

    KIIC, decrease

    Hua et al. (2016)

    Sandstone

    CCNBD specimen

    WW (48 h)

    OD (105 °C/24 h)

    20

    P increase; KIC, KIIC decrease

    Dehestani et al. (2020)

    Sandstone

    CCBD specimen

    WW (48 h)

    OD (105 °C/24 h)

    7

    KIC, σt decrease

    Hua et al. (2015)

    Mudstone

    Rock pieces

    WW (3 days)

    AD (26 °C/24 h)

    11

    SID, decrease

    Liu and Zhang (2020)

    Sandstone

    CS (Φ50 × 100)

    WW (5 days)

    OD (105 °C/12 h)

    15

    σc, E, Vp decrease

    Huang et al. (2020a, b)

    Sandstone

    NSCB specimen

    WW (25 °C/24 h)

    AD (25 °C/6 days)

    50

    P increase; Vp, KIC, decrease

    Cai et al. (2020a)

    Tuff

    CS (L/D ratio of 2.5)

    WW (15–24 °C/24 h)

    OD (105 °C)

    52

    Aw P increase; σc, Vp, decrease

    Topal and Sözmen (2003)

    Sandstone

    CS (Φ50 × 25)

    WW (25 °C/24 h)

    AD (25 °C/6 days)

    50

    Aw P increase; Vp, SDI, σt decrease

    Zhou et al. (2018b)

    Sandstone

    CS (Φ50 × 25/100)

    WW (25 °C/25 days)

    OD (110 °C/24 h)

    5

    σc, σt, E, decrease

    Yao et al. (2020c)

    Granite

    CS (Φ50 × 25)

    WW (25 °C/10 h)

    OD (50 °C/10 h)

    100

    R increase; H decrease

    Zhao et al. (2020)

    Sandstone

    CS (Φ50 × 50)

    WW (25 °C/48 h)

    AD (25 °C)

    50

    Aw P increase; Vp, SDI, σcd, Ed decrease

    Zhou et al. (2018a)

    Iron ore

    CS (Φ50 × 100)

    GWW (8 h)

    WW (48 h)

    AD (26 °C/7 days)

    15

    σc, E, Vp, decrease

    Yang et al. (2018)

    Sandstone

    CS(Φ50 × 100)

    GWW (6 h)

    WW (6 h)

    OD (50 °C/12 h)

    25

    Aw increase; Vp, σc, E decrease

    An et al. (2020)

    Sandstone

    CS(Φ50 × 100)

    CS(Φ50 × 50)

    GWW (6 h)

    WW (12 h)

    OD (50 °C/12 h) AD (48 h)

    30

    Aw, εc increase; σc, E, c, φ decrease

    Li et al. (2021c)

    Sandstone

    CS (Φ50 × 25)

    GWW (6 h)

    WW (18 h)

    AD (3 days)

    15

    σt, decrease

    Zhao et al. (2017b)

    Mudstone

    CS (Φ25 × 50)

    WWV (− 10 MPa/24 h)

    OD (60 °C/24 h)

    12

    P increase; σc decrease

    Zhao et al. (2018a)

    Sandstone

    CS (Φ50 × 100)

    WWV (4 h)

    WW (44 h)

    OD (45 °C/20 h); AD (4 h)

    15

    P increase; VP, σc, c, decrease

    Zhang et al. (2014)

    Sandstone

    CS

    WWV (4 h)

    WW (44 h)

    OD (105 °C/20 h); AD (4 h)

    20

    σc, E decrease

    Xie et al. (2018)

    Sandstone

    CS (Φ50 × 25/50)

    WWV (− 80 kPa/24 h)

    OD (105 °C/24 h)

    10

    Aw increase; Vp, σt decrease

    Liu et al. (2016)

    Sandstone

    SCB specimens; CS (Φ50 × 50)

    WWV (− 80 MPa/24 h); WW (44 h)

    OD (105 °C/24 h)

    10

    KIC, σt decrease

    Liang and Fu (2020)

    作者:Cun Zhang ; Qingsheng Bai ; Penghua Han ; Lei Wang ; Xiaojie Wang ; Fangtian Wang

    来源:Strength weakening and its micromechanism in water–rock interaction, a short review in laboratory te

    期刊:国际煤炭科学技术学报(英文) - 2023年 - 02期

  • 资讯-2024-06-12

    采高2米总装功率之最!——中国煤科上海研究院MG900/2360-WD采煤机成功下线

    近日,中国煤科上海研究院研制的MG900/2360-WD采煤机成功下线。该设备采高范围1.9⁓4m,总装机功率2360kW,是目前平均采高2m煤层采煤机中总装机功率之最。该设备为中厚煤层的高效...

  • 资讯-2024-06-11

    【煤科硬核】采高2米总装功率之最!——中国煤科上海研究院MG900/2360-WD采煤机成功下线

    【煤科硬核】采高2米总装功率之最!——中国煤科上海研究院MG900/2360-WD采煤机成功下线

  • 资讯-2024-06-11

    光明日报、中国科技网丨采高2米总装功率之最!——中国煤科上海研究院MG900/2360-WD采煤机成功下线

    采煤机 采高2米总装机功率之最近日,中国煤科上海研究院研制的MG900/2360-WD采煤机成功下线。该设备采高范围1.9⁓4m,总装机功率2360kW,是目前平均采高2m煤层采煤机中总装机功率

  • 资讯-2024-11-20

    上海煤科高速高适应性智能化MG900/2500-WD型采煤机成功下线

    近日,中国煤科上海研究院MG900/2500-WD系列高端采煤机首台样机成功下线,实现了对进口7LS6C与SL900采煤机的高端替代,以高水平科技自立自强支撑引领企业高质量发展,提升了品牌竞...

  • 资讯-2024-10-14

    西煤机公司“煤海重器”MG1050/2840-WD高效智能化采煤机成功应用

    在神东榆家梁煤矿平均采高2.8米、夹矸厚度达1.3米的工况下,日均割煤20刀,平均日产量为1.8万吨;在神东锦界煤矿平均采高3.3米,割煤速度高达16m/min,日均割煤最高达24刀,月产量达73...

  • 论文-2024年 第10期煤矿机械

    适应复杂地质大功率薄煤层采煤机研制

  • 论文-2022年 第05期煤炭学报

    MG400/951-WD型采煤机螺旋滚筒可靠性灵敏度优化设计

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