Soil microstructure testing requires dried samples. Traditional drying methods, such as air-drying and drying methods, have the defects of shrinking the volume of the soil sample, changing the microstructure state of the soil, and reducing the moisture content of the cohesive soil. ...

Food process Freeze Dryer has the advantages of lyophilization of edible wild mushrooms. Fresh wild or artificially cultivated edible wild mushrooms are used as raw materials, and the raw materials are pretreated, pre-frozen, freeze-dried, post-processed, inspected and packaged to obtain products. ...

In the process of using the pharmaceutical freeze dryer, due to the different characteristics of different products, it is inevitable to encounter different freeze-drying problems during the operation. ...

During the actual use of the pilot Freeze Dryer, the vacuum pump water inlet phenomenon sometimes occurs, which leads to frequent replacement of the vacuum pump oil by the customer. ...

Floor type Freeze Dryer's quality requirements for freeze-dried products are: constant biological activity, uniform appearance, full shape, firm structure, fast dissolution rate and low residual moisture....