Air Curtain Dust Removal Device Design and Dust Prevention Strategy in Heading Face

<div>Calculation model of minimum dust removal airflow velocity [<a href="/journals/ace/2020/8891599/#B23">23</a>]. <i>u</i><sub><i>m</i></sub>: maximum average speed in the axial direction, m/s; <i>u</i><sub>0</sub>: average speed of core area; <i>b</i>: expanded thickness.</div>

Advances in Civil Engineering

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Figure 8

Figure 8: Air Curtain Dust Removal Device Design and Dust Prevention Strategy in Heading Face 