Since the beginning of this century, China’s timber supply has undergone major structural changes, as shown by the fact that the proportion of industrial fast-growing timber has gradually increased;

　　Second, the proportion of imported materials has risen rapidly.we are provide wood dry machine,we can guarantee the quality of wood dry machine.

　　On the other hand, as a major energy consumer in the wood processing industry, wood drying accounts for 40-70% of wood processing energy consumption, while drying thermal efficiency is generally low, usually only between 30-40%;

　　In addition, the pollution caused by the drying process is often an important source of environmental pollution in China. Taking the steam drying workshop with an annual drying capacity of 10,000 cubic meters as an example, the harmful substances discharged per hour are about: the amount of soot is about 40Kg, and the carbon dioxide is 1900 cubic meters. Rice, sulfur dioxide 45 cubic meters, and a small amount of nitrogen oxides, these substances are the main factors causing atmospheric greenhouse effect, acid rain and ozone destruction.

　　Since the contribution rate of energy to environmental protection can reach 70-80%, the energy saving and environmental protection problems of drying technology are particularly important.

　　Since the beginning of this century, China’s timber supply has undergone major structural changes, as shown by the fact that the proportion of industrial fast-growing timber has gradually increased;

　　Second, the proportion of imported materials has risen rapidly. On the other hand, as a major energy consumer in the wood processing industry, wood drying accounts for 40-70% of wood processing energy consumption, while drying thermal efficiency is generally low, usually only between 30-40%;

　　In addition, the pollution caused by the drying process is often an important source of environmental pollution in China. Taking the steam drying workshop with an annual drying capacity of 10,000 cubic meters as an example, the harmful substances discharged per hour are about: the amount of soot is about 40Kg, and the carbon dioxide is 1900 cubic meters. Rice, sulfur dioxide 45 cubic meters, and a small amount of nitrogen oxides, these substances are the main factors causing atmospheric greenhouse effect, acid rain and ozone destruction.

　　Since the contribution rate of energy to environmental protection can reach 70-80%, the energy saving and environmental protection problems of drying technology are particularly important.