Multistage Spray Dryer

Multistage spray dryers are a type of spray dryer that uses two or more drying stages to dry materials quickly and efficiently and to get powder particle size more then 200micron. This is particularly useful for drying materials that are that require a high degree of uniformity and consistency.

Agglomeration Multistage Spray Dryers (FSD) are ideal for producing highly dispersible products with high practice sizes. These particles dry at a lower exhausts temperature, to make the dryer energy efficient.

AKSH offers agglomeration multistage spray dryers in various sizes available from 100 kg/hr to 3000 kg/hr. evaporation capacity.

These Dryers can also be designed for highly flammable and explosive products.

multistage spray dryers work

A multistage spray dryer consists of two or more drying chambers, each with its own atomization[either nozzle or Rotary disc ] and hot gas generator. The feed material is pumped into the first drying chamber, where it is atomized into a fine mist. The hot gas then evaporates the water from the mist droplets, which fall to the bottom of the drying chamber as a dry powder. The powder is then collected and fed into the next drying chamber, where the process is repeated.

Advantages of multistage spray dryers

Multistage spray dryers offer a number of advantages over single-stage spray dryers, including:

Higher drying efficiency: Multistage spray dryers can dry materials more quickly and efficiently than single-stage spray dryers. This is because the two or more drying stages allow for a longer residence time for the material in the dryer, which gives the hot gas more time to evaporate the water.

Higher product quality: Multistage spray dryers can produce products with a higher degree of uniformity and consistency than single-stage spray dryers. This is because the multiple drying stages allow for more precise control of the drying process.

Gentler drying process: Multistage spray dryers use a gentler drying process than two OR Three -stage spray dryers. This is because the feed material is exposed to the hot gas for a shorter period of time in each drying stage. This is particularly important for drying materials that are sensitive to heat. And also have powder to agglomerate.

Wider range of applications: Multistage spray dryers can be used to dry a wider range of materials than single-stage spray dryers. This includes materials that are sticky, pasty, or heat- sensitive.

Applications of multistage spray dryers

Multistage spray dryers are used in a wide variety of industries to dry materials quickly and efficiently. Here are some specific examples:

Food and beverage: Multistage spray dryers are used to dry a variety of food and Malto dextrin, Milk powder, etc products . Multistage spray dryers are particularly well-suited for drying these products because they can produce a high-quality product with a high degree of uniformity and consistency.

Pharmaceutical:Multistage spray dryers are used to dry a variety of pharmaceutical products, including. Multistage spray dryers are particularly well-suited for drying these products because they can produce a sterile and uniform product.

Chemical: Multistage spray dryers are used to dry a variety of chemical products, including Dyes and chemicals ,OBA, Fertilizers, and pesticides. Multistage spray dryers are particularly well- suited for drying these products because they can produce a fine mist of droplets, which dries quickly and evenly.

Other industries Multistage spray dryers are also used in a variety of other industries, such as ceramics, minerals, metals, textiles, paper and pulp, and waste treatment.

Here are some additional applications of multistage spray dryers:

Drying heat-sensitive materials: Multistage spray dryers are ideal for drying materials that are sensitive to heat, such as food products, pharmaceuticals, and chemicals. This is because the multiple drying stages allow for more precise control of the drying temperature.

Producing high-purity products:Multistage spray dryers can be used to produce high-purity products. This is because the multiple drying stages help to remove impurities from the material.

Drying materials with a high moisture content: Multistage spray dryers can also be used to dry materials with a high moisture content. This is because the multiple drying stages allow for more time for the water to evaporate.