Problems with pipeline transportation of solid materials
Thread Content
The pipeline transports solid, powdered material, and there is severe wear at the elbows. Is there any solution for this issue?
Our company uses curved elbows to transport solid powders. .
By enlarging r, which can be dozens of times that of D, the resistance is reduced, thereby minimizing wear on the elbow pipes
For short-distance transport, use screw conveyors; for long-distance air transport, use materials with an inner wear-resistant coating
There are many types of wear-resistant elbows, some of which feature structural improvements while others have a high material hardness
To increase the diameter of the elbow, the reducer must also be enlarged. I heard there is a type of spherical elbow in which the bend part is spherical; when material is fed, it accumulates at that curved area, allowing a 90-degree bend to form naturally, which helps prevent wear. I wonder if it’s available for purchase?
Wear-resistant materials; for non-metals, nylon and polytetrafluoroethylene can be used.
Reply to 7# Xin Gong: Ball elbows are wear-resistant, but they generate more resistance. I have conducted tests, and I found that a ball elbow creates 0.5 kilograms more resistance than an elbow with a larger curvature. Of course, this is under specific conditions, and these figures aren’t applicable in all situations; however, they do show that ball elbows indeed have much higher resistance.
For ordinary process pipes, we use 1.5D elbows; however, for those used for transporting separated components, 10D elbows are required, as otherwise there will be excessive wear and high resistance losses
Let’s start with the material of the equipment; impacts at the elbows are inevitable; otherwise, transportation cannot take place