Spray Dryer

We are leading Manufacturer of customized Spray Dryer as per Client and process requirement.

Spray drying is considered a powerful technological process since it brings feasibility to the production of free-flowing particles with well-defined particle size. The scalability and the cost-effectiveness of this manufacturing process in obtaining dried particles in submicron-to-micron scale favors an increasing variety of applications within the food, chemical, polymeric, pharmaceutical, biotechnology and medical industries.

Spray drying is a method of producing dry powder from a liquid or slurry by rapidly drying with hot gas using a pressure atomizer which converts the pressure energy is converted into kinetic energy and dispersed as droplets at a high-speed discharge.

The hot air and atomized droplets undergo heat transfer and mass transfer processes, and the droplets are dehydrated and dried into powder, granule or hollow sphere. This is the preferred method of drying of many thermally-sensitive materials such as foods and pharmaceuticals. A consistent particle size distribution is a reason for spray drying some industrial products such as catalysts. Air is the heated drying medium; however, if the liquid is a flammable solvent such as ethanol or the product is oxygen-sensitive then nitrogen is used.

Working Principle:

Liquid material is atomized through a special pressure nozzle with a high-pressure pump. Hot air enters the dryer after being adjusted by an air distributor. The material and hot air is mixed in the dryer, rapidly carries on heat and mass transfer. Powder or granular products are produced in a very short time. Products with larger particles size are discharged from the bottom of the dryer, smaller particles enter the cyclone with hot air. The exhaust gas is discharged into the air after dust removal in a scrubber. The dryers can be divided into high, middle and low pressure spray dryers according to different pressures of atomization, while taking into account different flow fields, they are divided into co-current, and fountain mode and counter-current spray dryers.

BENEFIT OF TECHNOLOGY

Production of free-flowing particles with well-defined particle size

  1. Production of free-flowing particles with well-defined particle size
  2. This is indeed a cost-effective manufacturing process
  3. Producing dried particles in submicron-to-micron range.

Applicable Industries /Products

Chemical industry:

white carbon black, concrete admixture, barium sulfate, chromium sulfate basic, alumina, titanium oxide, kaolin, ferrite, talc, carbide, fertilizer, dyes, detergents, ACR additives, latex, water purifying agents, resins, plastics, cryolite, etc.

Food industry:

dextrin, maltose, protein powder, lemon powder, tomato powder, egg yolk powder, oligosaccharides, granular oils, instant coffee, spices, fruits and vegetables granules, milk powder, tea, cereal, starch and starch derivatives, vitamins, enzymes, stevia, nutraceuticals, colorings, animal feed etc.

Pharmaceutical industry:

Chinese and Western medicine powder, antibiotics, biochemical products, vitamins, pesticide powders, hydrolyzed proteins, enzymes, single-cell proteins, etc.

Building materials industry:

ceramic billets, paint pigments, glazes, ultrafine powders, etc.

Environmental protection:

flue gas desulfurization, papermaking black liquor and pharmaceutical waste treatment, catalyst supports, and microalgae.