Laboratory use of small spray dryer fan static pressure The small spray dryer does not open the fan, and the performance of the fan directly affects the drying effect. The choice of fan parameters for small spray dryers refers to the choice of wind and static pressure. When designing a small spray dryer, how to choose the static pressure of the fan? The static pressure loss of the dryer, such as the wind resistance of the grain, the static pressure loss of the heater and the air duct, should be analyzed. Also It is said that the pressure of the fan is the wind resistance of the grain, the sum of the static pressure loss of the heater and the air duct, and the small is mainly the wind resistance of the grain. The following focuses on the wind resistance of grain. The factors affecting grain wind resistance are grain water-containing strings, air volume ratio, stacking height, and impurity content. The relationship between the moisture content of the grain and the wind resistance: under the same stack height and air volume ratio, the lower the water-containing string, the greater the wind resistance. Because the grain moisture content is lower than the elbow, between the grains The void should be reduced and the resistance increases as the air passes through the valley. The relationship between air volume ratio and wind resistance: under the same water content and stack height, the wind ratio is larger and the wind resistance is larger. The relationship between the stacking height and the wind resistance: under the strip of the same water content and air volume ratio, the higher the stacking angle, the larger the wind resistance. The effect of cereals on the wind resistance: the higher the impurity content, the greater the wind resistance. Therefore, it is necessary to clean the grain before drying. If it is determined that the air volume is better than the accumulated thirst, the wind resistance is determined; plus the static pressure loss of the heater and the air duct, the static pressure value of the fan can be determined. Cheese Dome Classic Glass,Glass Food Storage Containers,Glass Containers With Lids,Pyrex Glass Containers Xi'an ATO International Co., Ltd , https://www.xianato.com