main fan diffuser
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2013 ◽  
Vol 734-737 ◽  
pp. 562-565
Author(s):  
Di Wu ◽  
Xue Bing Li

Air volume control at wellhead is inconvenience when conduct fan performance test for metal mine We use total return air roadway to adjust conditions, testing air volume at main fan diffuser ,which has advantages with simple operation, security, ventilation recovery fast and so on and test out surface air leakage drag masterly. By analysising the testing process, point out precautions advantages and disadvantages of such test methods which have certain reference value for related test.


2011 ◽  
Vol 396-398 ◽  
pp. 2127-2132
Author(s):  
Hai Qiao Wang ◽  
Shi Qiang Chen ◽  
Yi Qun Li

Main fan diffuser is equipment of energy-recycling for main fan. On the basis of technology situation of main fan, in the view of structural energy-saving of main fan diffuser, new way of energy-saving of main fan is discussed, and consisting diffusers and their technology level of structural energy-saving are summarized, and common problems of structural energy-saving of diffuser are deduced out, and consisting realization approaches of structural energy-saving of diffuser are reviewed, and technology approaches of structural energy-saving in related fields are overviewed. From the above, problems of needing to explore is prospected for structural energy-saving of main fan diffuser.


2011 ◽  
Vol 356-360 ◽  
pp. 1293-1297
Author(s):  
Shi Qiang Chen ◽  
Hai Qiao Wang ◽  
Jian Lin Cheng

In order to decrease coal dust pollution of industry square, two types of dust-controlling equipment of main fan diffuser of coal mine are designed by virtue of inertia separation and gravity sedimentation. On the basis of field conditions, the physical models of two equipments are constructed. In application of Computational Fluid Dynamics (CFD), dynamic and kinetic fields of two-phase flow in two equipments are researched. The results show that the application of dust control equipment of main fan diffuser is available approach of decreasing coal dust pollution in industry square of coal mine.


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