Characteristics of multi-layer belt dryer

Characteristics of multi-layer belt dryer

Multi layer belt dryers are commonly used in situations where the drying speed requirements are low, the drying time is long, and the process operating conditions can be maintained constant throughout the entire drying process. Set up partitions between layers to organize the directional flow of drying medium, ensuring uniform drying of materials. Multi layer belt dryer takes up less space, has a simple structure, and is widely used for drying grain materials. However, due to the need for multiple loading and unloading during operation, it is not suitable for dry and easily adhesive conveyor belts and materials that are not allowed to break.

Multi layer belt dryer is a drying equipment used in mass production for drying sheet, strip, granular, and partially paste like materials with good breathability. It is particularly suitable for dehydrated vegetables, traditional Chinese medicine decoction pieces, and other materials with high moisture content and heat sensitivity. It has the advantages of high drying rate, high evaporation intensity, and good product quality. The operating parameters such as the quantity of drying medium, temperature, humidity, and exhaust gas circulation can be controlled to ensure the reliability of the dryer's operation and optimize the operating conditions.

A multi-layer belt dryer is composed of several unit segments. Each unit segment includes a circulating fan, heating device, separate or shared fresh air intake system, and exhaust system. The performance of a dryer directly affects the quality and value of dried food. In recent years, China has successively developed various multifunctional, high-efficiency, low-energy consumption, and adaptable drying machines.

Characteristics of multi-layer belt dryer

The multi-layer belt dryer has a simple structure, easy installation, and can operate for a long time. When a malfunction occurs, it is also possible to enter the box for maintenance, which is convenient for repair. Belt dryers have a wide range of applications and have found their place in fields such as pharmaceuticals, food, biology, and chemical engineering. But the selection criteria vary in each field, because the requirements and parameters of dry materials in different fields have significant differences.

The multi-layer belt dryer can directly send the concentrated paste into the vacuum belt dryer for drying without adding any auxiliary materials, which can reduce the amount of final product and improve the product grade. At the same time, drying under high vacuum conditions and at lower drying temperatures is beneficial for maintaining the original color and flavor of the extract. In addition, the vacuum belt dryer is equipped with continuous feeding at one end and continuous discharging at the other end of the machine body. The batching and discharging parts can be set in a clean room, and the entire drying process is completely enclosed without contact with the external environment, which meets GMP requirements. Compared with box drying and spray drying, vacuum belt drying has the advantages of thin material layer, fast drying and short heating time of materials; Isolation operation to avoid contamination; Features such as assembly line operation and automatic control.