Drying

As far as the drying process is concerned, what are the applications of vacuum technology?
For many industries and fields, it is hard to imagine leaving the vacuum drying process. With the vacuum drying process, the liquid contained in the processing material evaporates into steam under the effect of pressure reduction.

Compared with heating and drying, vacuum drying is faster, gentler and more energy-saving. The process is particularly suitable for use in drying processes for chemicals, pharmaceuticals, foods, and other applications where products can be destroyed or degraded due to overheating.

For example, in the process of concentrated juice processing or freeze-drying of coffee and fruits, vacuum drying helps to maintain the consistency of product quality and retain important ingredients and tastes such as vitamins.

Vacuum drying is especially suitable for drying products with large surface areas, such as synthetic plastic particles or other hygroscopic substances. In addition, vacuum can also be used to dry industrial components.

Which product series are especially suitable for drying process?
Busch screw technology has won special recognition from the chemical and pharmaceutical industries, which are industries involving a large number of drying processes. The COBRA screw vacuum pump has been widely used to achieve single-stage high vacuum.

The COBRA screw vacuum pump can adapt to very humid environments without working fluid at all, and is an ideal choice for drying processes. Since no working fluid is needed, the possibility of contamination of processed materials is avoided.

If explosive steam risks may occur during the drying process, we can provide various ATEX vacuum pumps to handle such materials. Such vacuum pumps meet all national and international safety certification requirements.

In addition to vacuum drying technology, we also provide separation devices for condensing the extracted steam into liquid and reusing it. Since the vacuum pump runs without oil and does not need to use working fluid, it will not cause pollution. If necessary, these liquids can be directly reused.

Our product portfolio is extensive and can meet the requirements of various drying processes, including small rotary vane vacuum pumps, large vacuum systems and integrated vacuum devices.

If ceramic or building materials such as bricks and tiles are dried, liquid ring vacuum pump and rotary vane vacuum pump can be selected. The only working fluid required by the Dolphin liquid ring vacuum pump is water, which is an efficient and long-lasting way to remove humid gas and steam.

The special model of R 5 rotary vane vacuum pump has high steam compatibility, in other words, water vapor will not condense in the vacuum pump. Therefore, the removed water will not come into contact with the substance to be dried.

Both screw technology and rotary disc technology can meet the special requirements of the drying process, and have different specifications and models to choose from.

The COBRA screw vacuum pump applies the principle of oil-free operation and can easily pump out all kinds of steam under low pressure. If combined with Puma or Panda roots vacuum pumps, it can also be used in large drying vacuum systems.

R 5 rotary vane vacuum pump, Huckepack rotary vane vacuum pump and Dolphin liquid ring vacuum pump have been tested for a long time in the drying process of ceramic and building materials industry.

Examples of application of Busch vacuum technology in drying process:

• freeze drying-food
• milk powder production
• mud Drying-Sewage Treatment
• wood Drying-Wood Treatment
• synthetic particle drying
• ceramic drying
• component drying