Drying equipment keeping up with the times is an urgent issue for enterprises

In the pharmaceutical industry, drying equipment is one of the essential equipment. According to the difference of dry matter, drying equipment can be divided into two major categories: electric heat blast drying equipment and vacuum drying equipment. Among them, vacuum drying equipment is designed for drying heat-sensitive, easily decomposable and easily oxidized materials. It is widely used in biochemical, chemical and pharmaceutical, medical and health, agricultural research, environmental protection and other research applications for powder drying and baking. And all kinds of glass containers for disinfection and sterilization. It is particularly suitable for the rapid and efficient drying of dry heat-sensitive, easily decomposable, easily oxidizable substances and complex ingredients. There are various types of vacuum drying equipment. Today, the author briefly introduces the double cone rotary vacuum dryer.

The double cone rotary vacuum dryer system is mainly composed of a double cone rotary vacuum dryer, a condenser, a dust collector, a vacuum suction system, a heating system, a cooling system, and an electronic control system. This type of dryer is a double-cone rotary tank. When the tank is in a vacuum state, it is heated by passing steam or hot water into the jacket. The heat is brought into contact with the wet material through the inner wall of the tank. The wet material vaporizes after absorbing heat. It is pumped by a vacuum pump through a vacuum exhaust pipe. Because the inside of the tank is in a vacuum state, and the rotation of the tank causes the material to be continuously turned up and down inside and out, the speed of drying the material is accelerated, the drying efficiency is improved, and the purpose of uniform drying is achieved.

From a functional point of view, the double-cone rotary vacuum dryer is a drying device that combines mixing and vacuum drying. It is applied as a classic device with simple, convenient, and double-effect characteristics. It has a practical and economical aspect. It is difficult to replace other equipment. However, at present, there are many manufacturers of double-cone rotary vacuum dryers in China, but the overall design and manufacturing level is relatively low, and there is no substantial improvement in the quality of equipment, let alone the optimal combination of such products. Jiangyin Hongguo Machinery Manufacturing Co., Ltd. pointed out that the real reason for the slow development of the double-cone rotary vacuum dryer is that it has not been able to combine the theory to study the performance and application of the double-cone rotary vacuum dryer.

“Although the double-cone rotary vacuum dryer has been regarded as a classic, it has been diluted by pharmaceutical companies in recent years. The fundamental reason is due to the lack of research and structural improvements made by manufacturers and its main performance. It is difficult to optimize the CIP/SIP and drying performance in terms of structure, so it is necessary to make a discussion on how to improve it.” said Jiangyin Hongguo Machinery Manufacturing Co., Ltd. technical personnel.

Industry experts believe that the rotational speed is a problem that needs attention for rotary vacuum drying equipment. It is understood that vacuum drying equipment in the work, if the rotation speed is too fast, it is easy to cause agglomeration. Therefore, in the initial stage, the equipment should be kept rotating at a low speed, and when the moisture content of the product to be dried is reduced, the rotation speed is gradually increased. In the final stage of drying, if you continue to accelerate, there is no benefit to drying, so you need to reduce speed. It can be said that the change of speed puts higher demands on the staff, and the staff can achieve better drying results only if they can reasonably grasp the timing to change the speed.

The development of intelligence has promoted the transformation and upgrading of drying equipment. It can help the equipment production process achieve automatic control, thus reducing the manpower work, improve the accuracy and efficiency of the work. For example, Suzhou Taicang Exhibition Co., Ltd. uses the intelligentization of PLC and gradually applies it to various fields. The double cone rotary vacuum dryer is one of the more typical examples. At present, the dryers that have undergone continuous transformation and processing have been able to be used in various fields such as medicine, chemicals, dyes, and food, and have performed very well.

It is understood that, in addition to the problem of the drying time control speed, the double-cone rotary vacuum dryer is also a major problem faced by staff. The application of intelligent PLC in the double cone rotary vacuum dryer can make the dryer automatically and intelligently adjust the speed and temperature to achieve better results. Moreover, this automated control is more accurate than manual control.

As China's energy-saving and environmental protection efforts increase, vacuum drying equipment companies will also face new opportunities and challenges. How to apply modern technology to break through the bottleneck of equipment development and develop a drying equipment that meets the requirements of the times is an issue that companies need to consider urgently. The future dryer equipment will be intelligent, energy-saving, and efficient development.

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