Evaluation of plow system performance in long-wall mining method using particle flow code
Evaluation of plow system performance in long-wall mining method using particle flow code
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DOI：
10.1007/s40789-019-00266-3
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发表时间：
2019-08
影响因子：
8.3
通讯作者：
M. Ajamzadeh;V. Sarfarazi;Hesam Dehghani-
中科院分区：
文献类型：
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作者：
M. Ajamzadeh;V. Sarfarazi;Hesam Dehghani-
开采矿产资源的方法有地下开采法和露天开采法，每一种开采法又分为不同的类别。煤是一种矿产资源，开采方法有地表开采和地下开采两种。长壁开采是煤矿地下开采的一种方法。这种方法是一种机械化的方法，使用采煤机或犁等机器进行采矿。塔巴省Parvadeh煤矿是采用长壁开采的机械化煤矿。采用颗粒流代码软件进行建模，根据煤的规格对犁的性能进行评价。在这方面，首先通过从Parvadeh煤矿取样并对模型进行单轴和巴西试验来校准样品。然后，通过建立模型，利用犁的间隙角和线速度等变量进行建模。在制作了28个型号的犁后，根据x方向上对机器施加的最大力选择了最佳的犁型号。最后，本研究结果表明，当模型的间隙角为零，线速度为9 mm/min时，犁的性能最佳，在X方向上施加的最大力为39,000 kN。
The underground or open-pit methods are used for the extraction of mineral resources, each of which is divided into different categories. Coal is one of the mineral resources, which is exploited either by the surface or the underground methods. The long-wall mining is one of the methods for the underground coal mining. In this method, which is a mechanized one, some machines such as the shearer or plow are used for the mining. The coal mine in Parvadeh, Tabas is a mechanized mine that is extracted by the long-wall mining. The modeling with particle flow code software was used in this mine for the evaluation of plow performance using the coal specifications. In this regard, the sample was first calibrated by sampling from the Parvadeh coal mine and performing the uniaxial and Brazilian tests on the model. Then, the modeling was done by constructing the model and using the variables such as the clearance angle and the linear velocity of the plow. After making 28 models for the plow, the best model of the plow was selected based on the maximum force applied to the machine in theXdirection. Finally, the results of this study showed that the best plow performance is for a model with the clearance angle of zero and the linear velocity of 9 mm/min, and the maximum force applied to this model is equal to 39,000 kN in the X direction.