Shell structure of wood drying chamber

22-02-2023

 wood drying chamber

The temperature and humidity of the gas medium in the wood drying chamber vary widely, the general working temperature is -30-100°C, the high temperature drying and superheated steam drying can be as high as 120°C, and the relative humidity is up to 100%. In addition, the drying medium also contains acidic substances such as formic acid, acetic acid, and tannin evaporated from the wood, and is continuously circulated indoors at a certain airflow speed. Therefore, the object of the drying room should have good heat preservation, sealing, and corrosion resistance. and anti-aging properties.

The principle of shell insulation is to ensure that the indoor surface does not condense under the process conditions of high temperature and high humidity. Condensation means that most of the condensation heat released by the condensed water has been transmitted outside through the casing, which will cause heat loss, increase drying costs, and make it difficult for the indoor temperature to rise; if the roof condenses, the condensed water will drop below If it is placed on the pile of wood, it will not only affect the drying of the wood, but also cause water stains, and even affect the material. Good airtightness of the shell should prevent the leakage of water vapor and corrosive gas.

The shell of the wood drying chamber mainly has three structural forms, namely, the metal shell structure, the brick-concrete shell structure and the aluminum-lined brick-concrete shell structure. The metal structural shell can be prefabricated in the factory first, assembled on site, and the construction period is short. But it needs to consume a large amount of aluminum alloy materials, which is expensive. The brick-concrete structure is a mixed structure of brick and concrete. It is a shell structure of a traditional drying room. It is low in cost and easy to construct. The brick-concrete structure shell with aluminum lining requires the aluminum inner wall to be fully enclosed, which is troublesome to construct. Most of the new drying chambers in my country at this stage are metal shells, followed by brick-concrete shells, and brick-concrete shells with aluminum walls are rarely used.

Fujian Zhangping CHIQIN Technology Co. Ltd, is professional in wood drying over 20 years, covering Aluminum Wood Drying Kiln, Heat Pump Wood Drying Kiln without heat source, Veneer Drying Equipment, Food Drying Kiln, Kiln Components etc with high quality and reasonable price. Hope to establish business relationship with you!

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