Optimization Of Structural Parameters Of Copper Sulfate Crystallizer Stirrer

The stirrer is the main component in the process of stirring and crystallization of copper sulfate.The structural parameters of the stirrer are different,the stirring effect is different,and the fluid flow speed in the stirring tank is different.Previous studies on the structural parameters of the agitator were only for a single study of a certain structural parameter of the agitator,and there was no systematic study of the structural parameters.In this paper,the stirring effect of the copper sulphate crystallization in a metallurgical enterprise in Yunnan is poor,the cooling rate is slow,and the underlying blade is too much due to excessive crystal packing.The main work is as follows:1.Based on the theory of fluid mechanics,the fluid mechanics model is established.The fluent simulation software is used to analyze the feasibility of the simulation model established in this paper,and the structural size of the subsequent model is set.2.Study the structural parameters and the range of values of the improved two-blade paddle agitator,and determine the five structural parameters and their range of values of the agitator to be studied.The structural parameters were combined in the range of values,and 12 sets of agitator models with different structural parameters were obtained,and 12 experimental schemes were determined.3.According to the agitator model of the experimental scheme and the agitator model of the original structure,the fluid simulation model was established.The fluent software simulation was used to analyze the velocity distribution,solid particle concentration distribution and turbulent kinetic energy distribution of the 13 agitator models during the mixing process.Influence,it is found that the original structure is different from the structure of the 12 experimental schemes.It is concluded that the stirring and mixing effect of the agitator is the combined effect of various structural parameters.4.Take the solid particle concentration distribution at section H=0.6m and H=1.5m,and establish the regression curve between the solid particle concentration of the section and the structural parameters of the agitator by multivariate polynomial regression analysis;determine the structural parameters of the agitator to optimize the design variables.And the constraints,the optimization design model is established,and the optimal solution of the structural parameters under the research conditions is obtained.5.The simulation model is established by combining the structural parameters of the optimized combination solution.The rationality and effectiveness of the structural parameter optimization improvement are demonstrated from the perspective of the whole and the local.It is proved that the improved agitator model is more conducive to the stirring and crystallization.The reasonable combination of the research work in this paper designed the combination of structural parameters of the agitator,effectively improved the stirring effect of the copper sulfate crystallizer at the completion of the crystallization,and increased the flow rate and solidity of the fluid in the agitation tank when the crystallization was basically completed.The suspension state of the particles indirectly improves the crystallization efficiency of copper sulfate.