Abstract
In order to make a reasonable dry-type dust removal plan of the coal transit spot in a coal washery, it is essential to install the dust removal fan and guide chute. By means of the numerical simulation, the pollution mechanism at a transit point and the flow-field interior dust removal system had been analyzed. The result shows that the dust pollution at transit spot is mainly cased by the joint effort of induced airflow and shock-wave. With the appropriate dust removal fan and the guide chute, will effectively eliminate the positive pressure by gave rise to by the impact of falling coal, also avoid the secondary pollution.
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