Project Description


Spray Dryer

spray dryer Equipment in which the material to be dried is sprayed as a fine mist into a hot‐air chamber and falls to the bottom as dry powder. The period of heating is very brief and so nutritional and functional damage are avoided. Dried powder consists of hollow particles of low density; widely applied to many foods (e.g. milk) and

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Product description

A spray dryer takes a liquid stream and separates the solute or suspension as a solid and the solvent into a vapor. The solid is usually collected in a drum or cyclone. The liquid input stream is sprayed through a nozzle into a hot vapor stream and vaporized. Solids form as moisture quickly leaves the droplets. A nozzle is usually used to make the droplets as small as possible, maximizing heat transfer and the rate of water vaporization. Droplet sizes can range from 20 to 180 μm depending on the nozzle.[3] There are two main types of nozzles: high pressure single fluid nozzle (50 to 300 bars) and two-fluid nozzles: one fluid is the liquid to dry and the second is compressed gas (generally air at 1 to 7 bars).

Spray dryers can dry a product very quickly compared to other methods of drying. They also turn a solution (or slurry) into a dried powder in a single step, which simplifies the process and improves profit margins.

In pharmaceutical manufacturing, spray drying is employed to manufacture Amorphous Solid Dispensation, by uniformly dispersing Active Pharmaceutical Ingredients into a polymer matrix. This state will put the active compounds (drug) in a higher state of energy which in turn facilitates diffusion of drug spices in patient body.

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Structure of Spray dryer

Spray dryer Details

Features of  Spray dryer

  • Dedicated to laboratory research, complete a test with a minimum of 20-30ml of liquid.
  • Full borosilicate glass for easy and intuitive monitoring of process status.
  • Spray chamber, cyclone separator and receiving box are made of borosilicate glass, which can resist strong acid / strong alkali and high temperature.It can work in a pollution-free and stable environment.
  • easy to clean, assembly and disassembly are very simple.
  • The air compressor is oil-free and does not pollute the compressed air. The sound is below 50db.
  • Inlet and outlet temperature is precisely controlled by PID.
  • The device is self-sufficient, no supporting equipment is required, and it can be used immediately.
  • Touch screen face display operation is used to control temperature, air volume, air pressure, pump speed and frequency of deblocker.
  • The product adopts rotary pump to feed, the capacity is adjustable.
  • Automatic clogging device prevents nozzle clogging and variable control.

Specific Parameters

Technical parameter name
Technical parameter index
Maximum amount of evaporated water
Inlet air temp
30 ℃ -300 ℃
Outlet air temp
30 ℃ -140 ℃
Dry air flow
Normal air flow rate 70m3/h (maximum 330m3/h); pressure 686pa
Blower power
0.1kw/220v;Frequency conversion
Pipe electric heating capacity
Inlet air temperature heating control
pt-100,Intelligent PID control
Spray system
With standard 0.7mm caliber two-fluid nozzle (other sizes available)
control system
POTO22PAC microprocessor
Average drying time
Automatic dredging device
Automatic needle plugging, cycle range: 0 ~ 60s / time, adjustable frequency
touching materials
Acid-resistant 316 stainless steel, 3.3 borosilicate glass

Application of Spray dryer

Spray dryer is mainly suitable for universities, research institutes, food, pharmaceutical and chemical enterprises, laboratories, etc.It can produce trace granular powders, and has a wide applicability to all solutions such as emulsions and suspensions.Suitable for drying heat-sensitive substances, such as biological products, biological pesticides, enzyme preparations, etc.Because the sprayed material is exposed to high temperature only when sprayed into mist-like particles, it is only heated instantaneously, which can keep these active materials from drying after the active ingredients are not damaged.

Spray dryer is suitable for various fields that need to produce free powder. The applicable fields include:Beverages, flavors and colors, milk and egg products, plant and vegetable extracts, pharmaceuticals, synthetic materials, heat-sensitive materials, plastic polymers and resins, perfumes, blood, ceramic and superconductor biochemicals, dyes, soaps and detergents, food , Adhesives, oxides, textiles, bones, teeth, etc.

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Our Service

Pre-sale Service

  1. Provide 24-hour technical consulting reply;
  2. Provide professional quoted price;
  3. Provide detailed product performance specification;
  4. According to product’s using condition, technicians will offer rationalization proposals to assist clients to select proper product types;
  5. Provide other corollary equipment according to client requirements.

In-sale Service

  1. Begin to supervise from raw material, its qualified rate can reach to 100%;
  2. Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
  3. Provide product’s inspection record of key junctures to customers;
  4. Provide production schedule photos to customers at regular intervals;
  5. Package and transport products strictly accordance with export standard;
  6. Provide transportation schedule information to clients timely.

After-sale Service

  1. Provide targeted installation video;
  2. Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
  3. When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product’s standard component and sealing component;
  4. During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product’s running state in time. Assist customers to install and adjust products until customers are satisfied;
  5. If product has malfunction during operation period, we’ll offer you satisfied answer in time. We’ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
  6. Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information;
  7. Provide assistant service if product is damaged during transportation.

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