Microwave vacuum dryer manufacturers upgrade the secrets of the process!

The so-called vacuum drying refers to the technology of heating and drying the dried materials under vacuum conditions Vacuum dryer equipment can be used for low-temperature drying of heat sensitive materials which are easy to decompose, polymerize and deteriorate under high temperature It is widely used in pharmaceutical, chemical, food electronics and other industries It has the characteristics of fast drying of goods and no damage to the internal quality of the dried goods Compared with the conventional dryer, the vacuum drying box greatly reduces the boiling point of the liquid to be removed, and can be easily applied to heat sensitive substances At the same time, for samples that are not easy to dry, such as powder or other granular samples, the vacuum drying method can effectively shorten the drying time, and the powder samples will not be blown or moved by the flowing air compared with the ordinary drying relying on air circulation In addition, the vacuum dryer is safer to use Because the vacuum dryer in vacuum or inert conditions, can eliminate the possibility of thermal explosion of oxides Due to the prominent advantages of vacuum drying oven, there is a strong demand in the market, the market scale of vacuum drying oven is expanding, and the industry competition is becoming increasingly fierce, which promotes the continuous innovation and development of drying technology Among them, microwave vacuum drying oven has become the "pet" in the market It is understood that the microwave source technology of the microwave vacuum drying oven can ensure the continuous operation of the system for 24 hours Among them, the magnetron is specially designed industrial grade water-cooled, with longer service life It can be equipped with specially customized high-power high-voltage transformer, with stable performance In addition, the microwave vacuum drying oven can reasonably arrange the microwave feed inlet according to the material dehydration process curve, which can reduce the material temperature as much as possible and improve the energy utilization rate while realizing effective dehydration At the same time, according to the air saturation curve and dehydration process curve, better parameter combinations such as material and temperature, air intake and exhaust volume, microwave power can be set to improve the utilization rate of microwave energy and ensure the dehydration efficiency It is worth noting that the current users not only pay attention to the power of the device, but also to the design of the device structure Some users have reported that the top of microwave vacuum equipment of most manufacturers in the market is flat top (except for the basket structure) During the drying process, the top steam condenses and drips into the materials on the upper tray, which is easy to lead to uneven drying Secondly, many users reported that the bottom of the microwave vacuum dryer purchased in the early stage had serious water collection, and the drying process needed to stop working in the middle, and the drying could be continued only after one water collection was eliminated Obviously, such structural design could not meet the needs of users Therefore, the microwave vacuum dryer needs to be upgraded from the user's actual operation process For example, in view of the unevenness of drying, some microwave vacuum drying oven manufacturers use the company's new technology to adopt a large area energy feeding mode for the equipment, which can ensure the uniform and reasonable distribution of the microwave field, improve the efficiency of microwave energy utilization, and avoid the occurrence of local hot spots and splashes At the same time, the damage to magnetron can be greatly reduced In terms of structure, some manufacturers adopt the "man" type ceiling design on the top, which makes a large number of water drops on the top slide from the front and rear wall panels   "In the process of large-scale microwave vacuum drying, the material has a fast outlet speed, and the water can not be discharged from the floor of the inner box, and it is not evaporated, which results in a long heating time For this reason, we have designed a concave bottom structure of the box, and assembled a large capacity water collection and drainage tank, so as to ensure that the water can flow into the water collection tank smoothly, and ensure that the water collection tank has a large enough volume to meet the drying requirements In the process of drying, the collection and discharge of all accumulated water can shorten a lot of drying time and save a lot of production costs " The equipment size of Henan Keer Microwave Technology Co., Ltd can be customized according to the output Our company can provide a prototype for process test If you have any questions, please have further communication with the company.