Rotor Pump usually beed used to transfer high viscosity liquid. we have Rotary Lobe Pump, roots pump, Internal Gear Pump. stainless steel rotary lobe pump is one kind of food grade pump, pump be used to transfer many kind of food liquid, like: juice, beer, wine, milk, honey, molasses, sugar liquid etc. roots pump is also be called lobed rotor pump, this pump have big capacity and high pressure, it's high suction let pump powerful. pump can be usde to transfer high viscosity lliquid and thick liquid, like: toothpaste, glue, resin, bitumen etc, it's stainless steel material pump also can be used to transfer high viscosity food liquid. NYP series internal Gear Pump with the heat insulation jacket, it's usually be used to transfer crystallized high viscosity liquid. Rotor Pump Rotor Pump,Stainless Steel Rotor Pump,Rotary Rotor Pump,Sanitary Rotor Pump Botou Honghai Pump Co.,Ltd , http://www.pumphonghai.com
In fact, as with other drying methods, vacuum freeze-drying is required to maintain the constant progress of sublimation and drying, and two basic conditions must be met, namely the continuous supply of heat and the continuous elimination of generated steam.
In the initial stage, if the material temperature is relatively high, the latent heat required for sublimation can be taken from the sensible heat of the material itself. However, with the progress of sublimation, the temperature of the material quickly falls to a temperature that is in equilibrium with the partial pressure of the steam in the drying chamber. At this time, if there is no external heating, sublimation drying stops. In the case of external heating, if the steam generated by sublimation is not eliminated in time, the partial pressure of steam will increase and the temperature of the material will increase. When the frozen point of the material is reached, the ice crystals in the material will melt. Freeze-drying can not be carried out.
Vacuum freeze-drying has many kinds of heating methods, such as contact heat transfer method, double heating method, microwave heating method, etc. Each heating method has its own characteristics. Based on the constant understanding of the essence of the freeze-drying process, people have explored a variety of heating and radiation combinations, such as conduction-radiation heating, conduction-microwave heating, and radiation-microwave heating. Its purpose is to expect to increase the drying rate and reduce energy consumption while ensuring product quality.
At this stage, with the continuous advancement of the environmental protection industry, freeze-drying equipment also needs to be closer to energy conservation and environmental protection. The advantage of vacuum freeze-drying is precisely that it can reduce the possibility of oxidative deterioration of materials and eliminate bacteria in materials. Therefore, related companies must make good use of this advantage, follow the trend of development and continue to promote the development of the drying industry.
Vacuum freeze-drying heating methods save energy and reduce consumption into a unified goal
Drying is an important part of the pharmaceutical process. In the pharmaceutical process, drying takes place in many places. This leads to the development of drying equipment. Its application in the pharmaceutical industry is extremely extensive. Vacuum freeze-drying is one of many drying methods and is also commonly used in the pharmaceutical industry.