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QPG Airflow Spray Dryer
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  • Name:QPG Airflow Spray Dryer

    Keywords: QPG Airflow Spray Dryer
    Description: Airflow spray drying process in accordance with the needs of the technics can be divided into two types, one is up jet style, that dry nozzles are set at the top of the tower, the liquid after atomization with the hot air flow from up to down cocurrently during the drying process.
    QPG Airflow Spray Dryer
    Airflow spray drying process in accordance with the needs of the technics can be divided into two types, one is up jet style, that dry nozzles are set at the top of the tower, the liquid after atomization with the hot air flow from up to down cocurrently during the drying process. It is suitable for drying of high-viscosity and heat-sensitive materials; The other is that the nozzle set up in the bottom of the tower, the liquid after atomization with the hot air from down to up together during the drying process. It is suitable for the drying of the better temperature resistance materials. The traditional drying process of the small-scale water-reducing agent is in this way. The atomizer of the airflow spray dryer, also known as air blast atomizer, is general simple structure, suitable for the atomizing of both low-viscosity and high-viscosity liquid materials, has been used in a wide scope. The product particles obtained is small, general about 5~30 microns. It is flexible operation. However, its shortcomings are obvious, that is, the larger power consumption of the compressed air for atomization. It is mainly used for atomization and drying of high-viscosity fluid material and greater molecular weight organic liquid material. According to the structure, the air blast atomizer can be divided into two-fluid and three-fluid styles. The two-fluid can be divided into internal and external mixing styles.
     
    Principles:
     
    Using two-fluid (or three-fluid) nozzle style atomizer and the speed different between the compressed air and the liquid in the subsonic or supersonic range, atomizing the general and a certain degree of viscous material into fine droplets, which changes heat rapidly with the hot dry medium, becomes dry power in a very short time.


    Product Characteristics:
     
    ◆Be able to deal with the solution, suspension, paste and corrosive, high hardness materials, etc.
    ◆Easy to use, reliable and can achieve automatic operation according to the user’s requirements.
    ◆High thermal utilization factor, resource as steam, electricity and heating, coal, oil, fuel heaters, etc, could be used according to the user’s situation.
    ◆Good operating environment, dust emissions meets the national standards.
    ◆Superior quality of the dry product, uniform size, liquidity, and the final water content evenly.
     
    Application Examples:
     
    ◆Chemical Industry: silica, concrete admixtures, barium sulfate, basic chromium sulfate, aluminum oxide, titanium dioxide, kaolin, ferrite, talc, carbide, fertilizer, humate acid, dye, detergent, CR agent , Latex, water purification agent, resin, plastic, cryolite, etc.
    ◆Food Industry: dextrin, maltose, protein powder, egg yolk powder, oligosaccharides, the particles oil, instant coffee, starch, spices, fruit and vegetable particles.
    ◆Dairy Industry: skimmed milk powder, whole milk, soybean milk powder, ice cream powder, milk powder, caseinate.
    ◆Pharmaceutical Industry: Western and Chinese medicine powder, antibiotics, chemical and biological products, vitamins, pesticide powder, hydrolyzed proteins, enzymes, single-cell protein,etc.
    ◆Building Materials Industry: ceramic body, glaze, ultra-fine powder,etc.
    ◆Environmental Protection: flue gas desulphurization, the disposal of the black liquor and pharmaceutical waste liquor, etcl.
    ◆Others: fish waste liquor and feed.
     
    Technological Process:
     

     
     
    Technical Parameters:
     

    Model

    QPG25

    QPG50

    QPG150

    QPG300

    QPG500

    QPG1000

    Evaporative Capacity(kg water/h)

    25

    50

    150

    300

    500

    1000

    Dryer Diameter(m)

    0.9

    1.0

    1.2

    2.2

    3.0

    4.2

    Square (L×W)
    (m)

    5×4

    5.5×5

    9×7

    12×8

    13×8.5

    12×12

    Height
    (m)

    10

    10

    11

    12

    15

    18

    Atomization

    Air Blast Atomizer

    Inlet Air Temperature
    (℃)

    120~170℃

    Atomizing Pressure

    0.4~0.88MPa Compressed Air

    Others:

    Evaporative capacity refers to the ability of removing water when the temperature is 150 ℃;
    Heat source: steam, electrical heating, coal burning, fuel, fuel gas, air heating furnace, etc.


     
     

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