Being able to conduct dry experiments on materials before selection, deepening the understanding of the monotonous equipment (advantages and disadvantages) of similar materials that have already been applied, is usually helpful for selecting the right materials. It is important for wood drying equipment to be suitable for specific materials and meet the basic application needs of monotonous materials, including the ability to handle materials well (feeding, transportation, fluidization, loosening, heat transfer, discharge, etc.), and to meet the fundamental requirements of disposal volume, dehydration volume, product quality, etc. Wood drying equipment has a high speed - just looking at the monotonic speed, when the convection is monotonic, the material is highly scattered in the hot air, the critical moisture content is low, the monotonic speed is fast, and both convection and monotonicity are monotonic. Different monotonic measures have different critical moisture contents, so the monotonic speed is also different.