Home > News > Technology corridor >

What are the applications of vacuum drying oven

The low-temperature vacuum drying oven is the device that removes the moisture from the container after the air inside the container reaches the desired vacuum. When the vacuum oven on work, the inner chamber is in a vacuum state, the jacket through the hot water heating, with the low-speed rotation of the tank, the material in the tank constantly up and down, inside and outside into a "diamond trajectory" movement and absorption evaporation, water vapor through the vacuum line continuous discharge, to achieve the purpose of drying materials. In the process of drying mixture, the multi-function operation can be achieved according to the customer's requirement of built-in spray, filtration, and pulverization.
In many chemical and pharmaceutical product synthesis processes, the solid particles are suspended in the liquid and need to be separated from the slurry at some stage. The first use of mechanical solid-liquid separation equipment, such as filtration centrifuge, vacuum filter, settler, filter press and static thickener, the solid separated from the liquid. For a process to choose the best type of mechanical separation equipment, vacuum drying oven mainly depends on the nature of solid, capacity and mode of operation and other factors to decide. However, product quality requirements can’t usually be achieved by just one mechanical solid-liquid separation step, because it is impossible to remove all the liquid only by mechanical force. Depending on the product and the equipment, the humidity of the product discharged from the centrifuge or filter is generally in the range of 5% to 80%. Therefore, after the completion of the mechanical solid-liquid separation, it is generally necessary to separate the liquid remaining in the solid by a thermal solid-liquid separation step.
An important driving force for the drying effect of the vacuum drying oven is the evaporation temperature of the contained liquid. The temperature of vacuum drying depends on the process pressure. Reducing the process pressure to reduce evaporation temperature can bring many benefits, especially for contact drying. It is not necessary to devise an ideal drying system that operates at minimum pressure and maximum allowable temperature as this will require large and expensive peripherals. The system is generally designed as a self-regulating pressure vessel. That is, the condenser and the vacuum unit are adapted to handle high steam flow rates at higher pressures, and the pressure is also reduced when the drying rate is reduced.

  • Pre-sale
  • 0086-020-36246586
  • 0086-020-36247961
  • 0086-020-36246649
  • 0086-020-36246650
  • 0086-020-36246651
  • After-sales
  • 0086-18688422996