Heat-resistant auger conveyor
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I have a screw conveyor used to transport powder with a specific gravity of 0.4 at around 550 degrees Celsius. The screw is 4 meters long, but the problem is that it bends and becomes damaged after operating for less than two shifts, rendering it unusable. I would like to ask: what kind of material should be chosen? Do the shaft diameter and length of the auger affect its deformation amount?
1. The material should be a high-temperature resistant material such as stainless steel. 2. The shaft diameter and length (the distance between the support points) certainly affect the amount of deformation.
Materials such as stainless steel, which are resistant to high temperatures, should be used. In future designs, it should be considered to increase the diameter of the tube shaft, with a support added in the middle ； Alternatively, a jacket can be added to the auger housing, with cooling water flowing inside it.
Adding cooling water won’t work; this process requires a reaction temperature of 550 degrees, and it involves reaction while the material is being transported. By the time the conveyor reaches the discharge outlet, the reaction is essentially complete.