The boiling dryer is an excellent drying equipment. It has the advantages of large production capacity, various operation modes and uniform temperature distribution. Moreover, it can realize the characteristics that the material residence time is adjustable, the investment cost is low, the heat transfer effect is good, and the maintenance workload is small. The vacuum dryer itself is specially designed for drying heat-sensitive, easily decomposable and easily oxidizable substances. It can be filled with inert gas, such as some more complex materials, which can also be quickly dried. Then let's introduce the working principle and characteristics of these two devices separately. 1. Principle of boiling dryer The powder particles of the material are in a fluidized state in the raw material container (fluidized bed), and are preheated and mixed by the purified heated air to atomize the binder solution to cause several particles. Aggregation of the agglomerates containing the binder, the moisture in the pellets evaporates due to the continuous drying of the hot air, and the binder solidifies, and the process is repeated to form ideal, uniform microporous spherical particles. After the device is heated by the heat exchanger, the hot air is distributed through the valve plate to enter the main machine, and the wet material enters the boiling dryer from the feeder. Due to the effect of the wind pressure, the material forms a boiling state in the boiling dryer, and is heated. The air is exposed extensively to complete the drying of the material in a shorter time. Through powder granulation, improve fluidity and reduce dust flying; improve its solubility by powder granulation; mix, granulate and dry to complete one-step granulation in one machine; use anti-static filter cloth to ensure safe operation; The pressure relief hole, in the event of an explosion, the equipment personnel are not harmed; the equipment has no dead angle, the loading and unloading material is light and fast, and is flushed to meet the GMP specifications. Second, the role of the air distribution plate in the boiling dryer The air distribution plate in the boiling dryer has two functions, one is to support the material layer, and the other is to make the gas distribution even. The size, shape, distribution potential, and opening ratio of the opening of the distribution plate all have a crucial influence on the distribution of the fluid. Uneven gas distribution will cause a "circulation" in the bed, which tends to cause "channeling" in some parts of the bed, while the rest is a deadbed. At this time, most of the gas follows the bed. Some of the channels are short-circuited through the bed in the form of "channeling", which makes the gas-solid contact greatly deteriorated, which should be avoided. A good distribution plate design should be able to suppress the occurrence of unevenness in the bed. That is, when the pressure drop is lowered and the airflow speed is increased in some parts of the bed, the resistance generated by the distribution plate should suppress the increase of the airflow, thereby suppressing The deterioration of fluidization. Third, the vacuum dryer is more obvious features 1. It can be seen from its appearance that it is a cuboid, so that its volume effect can be achieved. 2. Its control temperature technology is accurate and reliable. 3. The door of the vacuum dryer is closed so that it can be vacuumed inside the box. 4, the interior is made of stainless steel, can be used for a long time. 5, and its heating time is also shortened a lot, compared to the traditional heating. 6. It is possible to add inert gas to the inside when the door is closed. The above six are relatively obvious features of the vacuum dryer, and it is also the reason why it has always been popular. Fourth, vacuum dryer product structure The outer shell of the vacuum dryer is stamped and welded by steel plate, and the surface of the outer casing is treated with high-strength electrostatic spray coating. The paint film is smooth and firm. The studio is made of carbon steel or stainless steel, and the insulation between the studio and the outer casing is filled with insulation cotton. The interior of the studio is provided with a test shelf for placing various test items, and a mica heater is placed around the outer wall of the work chamber. The door seal is sealed with a silicone rubber strip, and a sight glass for observation is provided on the door. The evacuation and inflation of the electric vacuum dryer are controlled by a solenoid valve. The electrical box is on the left or the lower part of the cabinet. The front panel of the electrical box is equipped with a vacuum gauge, a temperature control instrument and a control switch. The electrical box is equipped with electrical components. The vacuum dryer keeps the working chamber at a certain degree of vacuum and uses an intelligent digital temperature controller for temperature setting, display and control. The boiling dryer and vacuum drying are both drying equipment, we compare and distinguish the two, so that the majority of users choose. Hip Pack,Hip Drape Pack,Disposable Hip Pack,Disposable Hip Surgical Pack Xinxiang Huaxi Sanitary Materials Co., Ltd. , https://www.huaximedical.com