缢蛏振动筛分装置的优化与试验

Optimization and experiment of vibrating screening device for constricted razor

目的:提高缢蛏壳肉分离效率。方法:采用参数法对振动筛分装置主要参数进行设计,以连云港双头蛏为试验对象,以振动频率、振幅、筛面倾角为试验因素,以筛分效率和肉中带壳比率为主控目标进行单因素试验,利用Design-Expert软件对试验结果进行方差分析,建立频率、振幅、筛面倾角与筛分效率和肉中带壳比率相匹配的回归模型。采用响应面优化分析法,得到了缢蛏壳肉分离筛分装置的最佳工作参数匹配。结果:当出料比率控制为1.2 kg/s、开壳比率控制为97%,振动频率设定为21.6 Hz、振幅设定为3.6 mm、筛面倾角度设定为9°时,缢蛏筛分效率为97.60%,肉中带壳比率为4.52%。结论:所设计的缢蛏振动筛分装置筛分效率高、适应性好,可满足初步加工要求。

Objective:To improve the separation efficiency of constricted clam shell and meat.Methods:Taking Lianyungang double-headed razor as the test object,taking frequency,amplitude,and sieve surface inclination as the test factors,and taking the screening efficiency and the ratio of the shell in the meat as the main control targets,a single-factor test was carried out,and the test results were analyzed by Design-Expert software.An analysis of variance was performed to establish a regression model matching the frequency,amplitude,and inclination of the screen surface to the screening efficiency and the ratio of husks in the meat.Using the response surface optimization analysis method,the optimal matching of working parameters for the separation and screening device of constricted razor shell and meat was obtained.Results:When the discharge rate was controlled at 1.2 kg/s,the shell opening rate was controlled at 97%,the frequency was set at 21.6 Hz,the amplitude was set at 3.6 mm,and the screen inclination angle was set at 9°,the screening efficiency of constricted razor was improved,with the screen efficiency of 97.60%,and the shell-on ratio of the meat of 4.52%.Conclusion:The designed vibrating screening device for constricted razor has high screening efficiency and good adaptability,which can meet the preliminary processing requirements.