Dryer Condenser Dryer,Condenser Tumble Dryer,Vented Tumble Dryer,Heat Pump Dryer Jiangmen Jinhuan Electrical Co., Ltd , https://www.globaljinhuan.com
As the country promotes energy conservation and environmental protection and the promotion of related measures, how to achieve energy saving and environmental protection requirements of spray dryers has become a problem that drying equipment manufacturers have to think about. Some manufacturers have summarized some effective measures for energy conservation and consumption reduction based on their full study of performance. The author briefly summarized this.
First, increase the temperature of the hot air into the tower. It is understood that the higher the temperature of the hot air entering the tower, the higher the heat transferred to the mud droplets, the more water the unit hot air evaporates. In the case of a constant production capacity, the amount of hot air required is reduced, so that heat loss can be reduced and the heat consumption of the vacuum spray dryer can be reduced.
Second, the temperature of the off-column of the hot air can be appropriately reduced. In the case where the temperature of the hot air inlet tower is constant, reducing the temperature of the hot air off the tower can reduce the heat taken away by the hot air from the tower, and utilize the heat of the hot air to dry the material to a large extent.
Third, increase the temperature difference between the hot air entering the tower and the hot air from the tower. By increasing the temperature of the hot air into the tower or lowering the temperature of the hot air from the tower, the temperature difference between the hot air entering the tower and the hot air from the tower is increased, and the temperature is fully utilized. The heat of the hot air evaporates the moisture of the material, thereby achieving the purpose of improving the thermal efficiency of the spray drying tower and reducing energy consumption.
Fourth, the production efficiency of the spray dryer can be improved by reducing the moisture content of the material. In fact, materials with good fluidity and easy atomization can effectively shorten the spray drying time, and add suitable water reducing agent to the material to reduce the water content and accelerate the drying time.
Fifth, the waste heat can be recovered by the heat exchanger to save energy. For example, during the use of a vacuum spray dryer, the use of a heat exchanger will enable more efficient use of heat, thereby increasing the atomization efficiency of the spray dryer and reducing energy consumption.
In addition to improving the energy-saving and consumption-reducing requirements of spray dryers, some users report that when spray drying the natural product extracts of traditional Chinese medicine (Chinese herbal medicine), it often causes sticky wall problems, which plagues researchers.
Related * indicates that the conventional laboratory spray dryer, when spray drying the natural product extracts of the Chinese herbal medicine (Chinese herbal medicine), because the material itself contains many sugar components, these components are relatively easy to melt at high temperatures, in the spray It is easy to stick together when dry, and it is attached to the bottle wall of the spray dryer drying room.
It is reported that researchers are often plagued by this problem, sometimes in order to get a good fluidity of the powder, have to add a lot of excipients, such as starch, cyclodextrin, etc., but the effect is not very satisfactory.
In view of the sticking phenomenon of the spray dryer, there are technical improvements in the drying equipment manufacturer, so that when the user performs spray drying, it is only necessary to adopt the corresponding inlet air temperature, the sugar in the material will not melt, and it is not easy to cause sticking phenomenon. Thereby, powder particles having better fluidity are obtained. The manufacturer also added automatic cleaning and cleaning functions of the equipment. After the operation is completed, the user does not need to manually clean, which greatly saves the experimental operation time, and the innovative tower wall purging device has higher material recovery rate and saves costs for the enterprise. And form a cycle of sustainable development.
How do spray dryers achieve energy savings and reduce business costs?
Spray drying is a very important industrial drying operation in the pharmaceutical industry. The vacuum spray Dryer can meet the requirements of continuous feeding and discharging under vacuum condition. It is flexible in operation and achieves the effect of drying materials. It can be applied to the drying and granulation of liquids, extracts and powders. At present, vacuum spray dryers are widely used and have a bright future.