The quality of the drying room can be measured by technical and economic performance. But technical and economic performance is not the only basis for choosing a drying room. Different types of drying rooms have different applicability, which must be determined according to the scale of the enterprise, energy conditions, characteristics and quality of the wood to be dried.

Since the reform and opening up, my country's wood drying industry has developed rapidly. At present, it has become a complete industry system. Especially in recent years, with the gradual increase in the amount of wood used in my country, the wood drying market can be described as prosperous, which has brought a good opportunity for the rapid development of my country's wood drying industry. At present, my country's wood drying industry has the following characteristics:

Dry rooms are generally classified according to the following main characteristics.

Modern metal shell wood drying rooms are almost all made of aluminum alloy materials. They have a beautiful appearance and can be used to build various large drying rooms in the open air.

Furnace gas drying chamber is a general term for various drying chambers with furnace gas as the heat source. According to the different heating methods, it can be divided into three types: furnace gas drying room, furnace gas indirect heating drying room and hot air drying room.

Compared with the continuous type, the periodic type has great flexibility, wide adaptability, easy adjustment of temperature and moderate temperature, and can perform humidity control treatment, while the forced circulation is more uniform than the natural circulation, and the loading quantity is large, the drying time is short, and the drying efficiency is high. . Therefore, periodic circulation drying chambers are often used in production. There are many structural forms of this type of drying chamber, and their performance characteristics are not nearly the same. Periodic forced circulation drying is divided into four types according to the arrangement of fans in the drying room: indoor top fan type, indoor side fan type, indoor end fan type and jet type.

Wood drying rooms are generally classified according to the following main features.

The brick-concrete structure of the traditional drying room shell is low in cost and easy to build. However, there are some problems in the use of brick-concrete structure shells, such as poor corrosion resistance and cracking of the shell. In particular, the cracking of the shell not only increases the heat loss of the drying chamber, reduces the airtightness, and accelerates the destruction of the shell due to the intrusion of corrosive gases, but also seriously affects the normal use of the drying chamber. Therefore, precautions must be taken in the design and construction of the shell.