牛大力热风干燥工艺参数优化OA

Hot airflow drying is beneficial to improve the drying rate and product quality of fresh Millettia speciosa champ during drying.A single-factor hot airflow drying experiment is performed on fresh Millettia speciosa champ.The drying velocity rate of Millettia speciosa champ is increased with the increasing of hot airflow temperature and the reducing of slice thickness.When the hot airflow temperature is high,browning and cracks will occur on the surface of the Millettia speciosa champ slices.The regression analysis model between each factor and the index value is established with the re-sponse surface optimization analysis method.From the response surface optimization analysis and experimental results,when the hot airflow temperature from 50 ℃ to 60 ℃,slice thickness from 3 mm to 7 mm and hot airflow velocity from 0.5m/s to 1.5m/s.The best drying parameter of hot airflow temperature is 60 ℃,slice thickness is 5 mm,and hot air velocity is 1.116m/s.