Screening the Main Factors Affecting the Wear of the Scraper Conveyor Chute Using the Plackett–Burman Method

<table class="fixed-width table-group" id="tab4"><tr><td><table class="table"><colgroup><col style="width:10.43em"/><col style="width:4.47em"/><col style="width:7.56em"/><col style="width:4.00em"/></colgroup><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Source place of gangue</td><td class="align_center" rowspan="2">Ningxia</td><td class="align_center" rowspan="2">Inner Mongolia</td><td class="align_center" rowspan="2">Shanxi</td></tr><tr class="thead"><td class="align_left">(all in China)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Mohs hardness</td><td class="align_center">6</td><td class="align_center">4</td><td class="align_center">4</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Mathematical Problems in Engineering

tab4

Table 4

Table 4: Screening the Main Factors Affecting the Wear of the Scraper Conveyor Chute Using the Plackett–Burman Method 