Finite Element Analysis of Lime Stone Slurry Tank. Lime Stone Slurry Tank

Abstract—Lime stone slurry is highly effective wet scrub to reduce toxic emissions because it is cheap plentiful, limestone is the most commonly used reagent for this purpose. The slurry reacts well with the toxic sulfur dioxide and makes the waste less hazardous to the environment. The waste then may be dewatered and deposited safely in landfills or sold as an ingredient for the manufacturing of gypsum wallboard and cement. It may even be used as a fertilizer additive. Limestone stays only slightly soluble in water. The slurry needs regular agitation, otherwise, the suspended particles soon settle out and form a solid. A limestone slurry tank designed with the objective of keeping the slurry agitated for storage purpose. Besides structural stability, the internal pressure indicates the risk of leakage and failure of slurry tank, hence FEA is used to identify the critical zone and hence be manipulated it through a structural modification to make the system safe. Lime Stone Slurry Tank.

Keywords: Design, fem, surface mesh, analysis, optimization, ANSYS, skirt support.

I. INTRODUCTION

A limestone slurry tank designed with the objective of keeping the slurry agitated for storage purpose. Besides structural stability, the presence agitator indicates risk of vibration failure too, hence FEA is used to identify natural frequency of tank, and hence be manipulated it through a structural modification to make the system safe. Limestone slurry is sprayed into the sulfur dioxide containing gas stream. The chemical reaction in the recalculating limestone slurry and reaction products may be carefully controlled in order to maintain the desired sulfur dioxide removal efficiency and to prevent operating problems. Though the process is highly efficient, it depends on lime stone being in wet slurry form. However limestone is just slightly soluble in water, and tendency of settling down into solid particles. These solid particles can then obstruct flow and damage the equipment. Hence it is necessary to maintain continuous agitation for slurry to prevent deposition of lime.
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