One-way heating conventional enhanced drying benchmark

This drying process is the same as the conventional drying process. It is divided into stages according to the change of moisture content. However, in the three intervals where the moisture content is 30% and 20%, there is an obvious difference in the softness and hardness of the benchmark. Do you pay attention to the gradual transition? Each interval is divided into several stages, so that the whole benchmark gradually changes from soft to hard. Before drying, preheat for half an hour, and then increase the dry bulb temperature, while the wet bulb temperature remains unchanged; during processing, only increase the wet bulb temperature, and keep the dry bulb temperature unchanged, or naturally increase by 1~2°C. The hardness of the unidirectional heating drying standard is moderate in the early stage, and the hardness is relatively large in the middle and late stages; it does not require a large amount of steaming and exhaust, which can reduce heat loss; the stage transition is easy to adjust, which is easy to ensure the standard state and shorten the time of the adjustment process; drying quality Well, it dries fast.

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