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Working principle of belt dryer machine

Views: 0     Author: Site Editor     Publish Time: 2021-10-13      Origin: Site

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The belt dryer machine is a piece of continuous drying equipment for batch production. It is used for drying flakes, strips, and granular materials with good air permeability. For dehydrated vegetables, catalysts, Chinese herbal medicines, etc., the moisture content is high, and the materials It is especially suitable for materials whose temperature is not allowed to be high; this series of dryer machines have the advantages of fast drying speed, high evaporation strength, and good product quality. For the paste-like materials such as dehydrated filter cakes, they need to be granulated or made into strips before they can be dried. . The working principle of the belt dryer is:

1.The work of the belt dryer machine

2. The upper circulation unit of the belt dryer machine

3. Lower circulation unit of the belt dryer machine

 

The work of the belt dryer machine

The materials are spread evenly on the mesh belt by the feeder, which uses 12-60 mesh stainless steel wire mesh. Driven by the transmission device to move in the dryer machine. The dryer machine is composed of several units. Each unit circulates hot air independently. Part of the exhaust gas is exhausted by a dedicated exhaust fan. The exhaust gas is controlled by a regulating valve. Dry and take away moisture. The mesh belt moves slowly, the running speed can be adjusted freely according to the temperature of the material, and the dried product continuously falls into the receiver.

 

The upper circulation unit of the belt dryer machine

In the upper circulation unit, the wind from the circulating fan enters the lower cavity of the unit through the side air ducts, and the airflow is heated by the heater upwards, and after being distributed by the distributor, it is blown into the mesh belt as a jet stream and enters the upper cavity after passing through the material . The drying process is a process in which the hot air flows through the material layer to complete the heat and mass transfer. The upper cavity is connected to the fan inlet by a windpipe. Most of the gas circulates, and part of the gas with lower temperature and higher moisture content is discharged as exhaust gas through the exhaust pipe, regulating valve, and exhaust fan.

 

Lower circulation unit of the belt dryer machine

In the lower circulation unit, the wind from the circulating fan first enters the upper cavity, is heated downward by the heat exchanger, passes through the material layer and enters the lower cavity. The lower cavity is connected to the fan by the side air duct and the return air pipe, and most of the air is circulated. Part of it is discharged.

 

Sichuan Nanchong Shouchuang Technology Development Co., Ltd is a dryer supplier dedicated to comprehensive processing solutions for agricultural products. The original technology adopted is a multi-stage pulse air supply mesh belt drying system, which is a national patented technology with independent intellectual property rights. The special air supply method is adopted to make the heating area of the material larger and more uniform and better maintain the inherent quality of the material's color, fragrance, and taste.


Sichuan Nanchong Shouchuang Technology Development Co., Ltd.

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