Energy conservation and environmental protection is one of the main directions for the upgrade of pharmaceutical equipment

At present, energy saving and environmental protection is one of the main directions for pharmaceutical companies to upgrade their equipment. Taking a vibrating fluidized drying apparatus as an example, a vibrating fluidized bed drier is an enhanced dedicated drying apparatus that is generally used for final drying of materials. Because the mechanical vibration helps the material flow in the drying process, it not only contributes to the turbulence in the boundary layer, but also enhances heat transfer and mass transfer, and also ensures that the drying equipment is under relatively stable flow conditions. This device has a very good drying function and can also be used to granulate, cool, filter and transport the material according to the process requirements. It has been widely used in medicine, fertilizer, chemical, plastics, mining and other industries.

With the basic maturity of vibrating fluidized drying technology, a series of working principles of vibrating fluidized bed dryers have been formed. The author was informed that the ZDG series vibrating fluidized bed dryer developed by Changzhou Geldre Drying Engineering Co., Ltd. was driven by a vibration motor, operated smoothly, and fluidized and well-proportioned. No dead space and blowing through the present ten days, uniform drying could be achieved. The damage to the surface of the material is small, and it can be used to dry the fragile materials. At the same time, it can effectively prevent the space between the material and the air from infecting the clean working environment. In addition, the mechanical noise is small, the efficiency and the thermal efficiency are high, and the energy saving effect is good. Compared with the general drying device Can save 30 to 40%. The equipment meets the requirements of energy saving and environmental protection, and is widely applied to the drying, cooling and humidifying operations of powdery granular materials in the chemical, light industry, medicine, food, plastics, grain and oil, slag, salt, and sugar industries.

It is understood that the most widely used horizontal vibrating fluidized bed dryers today are very similar in shape and basic structure to ordinary horizontal fluidized bed dryers. The difference is that the entire vibrated fluidized bed is supported by a spring on the base, the porous plate is slightly inclined toward the discharge end, and the vibration motor is installed on one side or both sides of the body. The material relies on the fluid flow of both the mechanical vibration and the perforation, and moves forward under the action of vibration.

The spiral vibration dryer is a new type of vibration drying equipment born under the concept of energy conservation. Compared with the horizontal groove type fluidized bed dryer widely used in production today, it has obvious advantages. On the one hand, the distribution plate of the spiral vibration dryer is multi-layered, and the hot air passes through the layers of the distribution plate and the material layer layer by layer. The exhausted waste air has a lower temperature and the heat energy is fully utilized; the drying efficiency is improved; on the other hand, when the total drying occurs When the stroke is the same, the area of ​​the spiral surface distribution plate of one layer is much smaller than the area of ​​the distribution plate of the horizontal groove type. Therefore, the required air volume is greatly reduced. Although the resistance increases due to the wind passing several layers of helicoidal and material layers, the main part of the system resistance is in the cyclone dust collector. Therefore, the relative amount of resistance increase is less than the relative amount of air volume reduction, so the power of the equipped fan is reduced. Therefore, compared with the horizontal groove vibration dryer, the spiral vibration dryer is a product with smaller energy consumption and higher efficiency.

In the past, the research and development and application units of drying technology in China have undergone blind development and repeated exploration. With the industry's emphasis on the improvement of drying technical requirements and the concept of energy saving and environmental protection, the development of new industrialized drying series devices has become a trend.

The author believes that in the increasingly fierce market competition, drying equipment companies can study the process routes and technical software applicable to different materials according to the characteristics of key energy-consuming industries, and propose that chemical, petrochemical, electric power, metallurgy, building materials, and environmental protection industries be dry. Technical solutions, taking the typical industry enterprises as a breakthrough, to create and promote products, “prescribe the right medicine,” in order to grasp the market initiative.

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