Influence of air relative humidity on spray drying production

There is a big difference in climate between the north and south of China, and the relative humidity is different. Relative humidity will bring adverse effects to spray drying production. Relative humidity, that is, under a certain total pressure in the wet air water vapour partial pressure and the same temperature under the water saturation vapour pressure ratio, known as the relative humidity percentage, relative humidity on behalf of the degree of unsaturated air, when the wet air is saturated with water vapour, when the air no longer absorbs water, known as saturated air, saturated air can not be used as a drying medium, wet air, the smaller the relative humidity, the greater the moisture-absorbing capacity. It can be seen that the relative humidity can be determined by the wet air can be used as a drying medium. Therefore, the user's location of the environmental conditions, especially the relative humidity is an important parameter in the design of spray drying system. Even if the same area due to seasonal changes in the relative humidity also changed, generally smaller relative humidity in winter.



Inlet air volume and heater heat exchange area calculation to determine the use of spray drying system is to determine the effectiveness of the key, and air relative humidity on the spray drying production will bring many adverse effects.

Drying production will bring many adverse effects, but also to determine the air inlet air volume, heater is an important basis, even if the same type of product in the north and south, especially in the relative humidity of the region of its application of the effect of the larger difference, therefore, the design of the spray drying system must master the local environmental conditions Especially the relative humidity of the air, which is the design of the spray drying system is an important basis for the local parameters of the relative humidity, will be the production of spray drying system in the production of the spray drying system in the winter, the relative humidity is generally smaller. Spray drying system in the production process may bring adverse effects to do in mind, let the design will do its best to avoid this or that problem in the production process. Therefore, the design of spray drying system must not ignore the impact of local relative humidity, analogous design is not feasible. Only in this way can we design a spray drying system suitable for local conditions, without problems.