Abstract
Rotary kilns have widespread usage in many field of industry due to continues flow and heating the products inside it, simultaneously. Rotary kiln can be used in the process of alumina, cement, lime, magnesium etc. Rotary kiln material for corrosive process media is usually designated as stainless steel. In some media as high temperature and dilute acidic, even stainless steel can be subject to rapid corrosion. In this study, an alternative material, titanium Gr 2, was investigated instead of conventional 316L (1.4404) quality stainless steel material of rotary kiln. Due to the different physical properties of titanium Gr 2 material, two different alternative designs were prepared and analyzed with the model. In the first design the outside of the titanium shell of the rotary kiln was covered with 316L (1.4404) quality steel material. In this design, different thermal expansion of the materials limited the usage of hybrid materials at high temperature. Therefore, as a second alternative the length of the rotary kiln was extended. According to required product output temperature the required of the length extension was calculated as 4600 mm.
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