Research On Experiments And Structure Optimization Of Gypsum Hydrocyclone

Taking gypsum hydrocyclone as research object, the article studies the performance indicators of hydrocyclone by using simulation experiment method. Medium and process of power the plant's gypsum dehydration was simulated; experimental platform was built; and experiments were arranged with the orthogonal experiment method; at last the detailed data was obtained. According to the experimental data, first of all, analyzed influence of the overflow pipe inner, wall thickness, in-depth length, bottom flow pipe inner, bottom flow pipe length, operating pressure and entrance concentration's alone changes of gypsum on hydrocyclone separation performance index; Second, With the help of MATLAB software, regression analysis was used in processing data changed with comprehensive factors. The mode's expressions were obtained which include following facts:production capacity, diversion ratio, separation efficiency, convert separation efficiency and separation granularity, etc. Then, According to these model analyze the influence factors of each index. The results are consistent with which of the single factor analysis. So, causality was determined. In the index optimization, combining with relevant knowledge and theory of the gypsum hydrocyclone, the article mainly discussed bottom flow concentration, over flow concentration and the reducing of short-circuit flow. By changing the size and proportion of the overflow pipe and bottom flow pipe, bottom flow concentration could be controlled in the ideal scope; In addition, after new overflow pipe and column paragraph structure of the hydrocyclone were designed, the purpose of reducing short-circuit flow was achieved and the hydrocyclone performance was improved. Summarizing the research achievement, new gypsum hydrocyclone model was putted. After compared the original hydrocyclone model's internal flow field and separation properties to which of the improved model by using methods of numerical modeling and simulation experiment, new hydrocyclone is better than original structure in the crucial indicator, as the result, the feasibility of the optimization scheme was preliminary confirmed.