An Experimental Investigation of a new Method for Protecting Bends from Erosion in Gas—Particle Flows

Bend erosion is fairly serious problem in conveyer pipe system.This paper intends to introduce a new antierosion method for bend:ribbed anti-erosion method.Experimental research has been done by fixing ribs in the range of 10°-70° on the outer-wall of inside 90°-bend.As a result,the experiment got anti-erosion efficiency:93.02%.It shows that ribbed bend technology is a simple and efficient anti-erosion ethod.Besides,the Experiments indicate that rectangle ribs tend to do more obvious anti-erosion effect than square ribs do when they have equal height.