China Calcium Propionate Flash Dryer

1. Principles :
Hot air is sprayed from the bottom of the dryer into a drying chamber, which is used for stirring and crushing, at a proper speed. It causes the materials to float and rotate at a high speed. Thus, the materials are granulated through centrifuging, shearing, impacting and rubbing. And the process of heat transmitting is also strengthened. At the bottom of the dryer, large and damp, lump granules are crushed under the action of the stirrer. While small granules contain less moisture will be brought up by the rotating air flow. During this period. They are dried further. As the inertia of the solid is larger than that of gas, the solid and gas will flow rotairly at a high relative speed. So the process of heat transmitting will be strengthened again. Therefore the machine has a high drying capacity.
2. Featurs:
As the materials are granuled through centrifuging, shearing, impacting and rubbing. Moreover the relation velocity between solid and gas phases is high, so it strengthens the process of heat transmitting. Therefore the machine has a high drying capacity.
Dry gas enters the dryer the from bottom which produces strong rotating air flow and also carries out an action of strong rushing onto the raw materials on the inner wall of the dryer. So there is no phenomenon of materials sticking on the inner wall.
At the bottom of the dryer, where the temperature is very high, a special device is equipped to prevent heat sensitive materials from contacting with the heat surface directly. Therefore, it solves the problem of heat sensitive materials carbonization and color changing.
As the rotating speed of the gas inside the drying chamber is very high and the staying time of the materials is very short, high efficiency, high drying speed, small equipment, large out put can be achieved.
There are elutrating rings and rotating flow separators equipped in the upper part of the drying chamber in order to control the size and humidity of the granules so as to meet different requirements.
3. Scope of application:
Organic compounds: Fenatrol(insecticide of agrochemicals),cadmium laurate, benzoic acid, germicide, sodium oxalate, cellulose acetate and so on.
Dyestuff: anthraquinone, black ferric oxide, indigo blue pigment, butyric acid, titanium hydroxide, zinc sulfide, all kinds of intermediate of azo dye-stuff.
Inorganic compounds: borax, calcium carbonate , hydroxide, copper sulfate, ferric oxide , barium carbonate , antimony trioxide, all kind of heavy metallic salt, synthetic cryolite and so on.
Ceramics: kaoline, silicone trioxide, clay and so on. Foodstuff: soya protein, agglomerative starch, lees, trticin, wheat starch and so.
4.Technical parameter

Type

Diameter of the

cylinder (mm)

Main machine

dimensions(mm)

Main machine

power (Kw)

Volume of hot

air (m3/h)

Water evaporation

(Kg/h)

Occupied area

(mm2)

XZG-2

200

250 x2800

5~9

300~800

10~20

3500 x2500

XZG-3

300

400 x3300

8~15

600~1300

20~50

3800 x2700

XZG-4

400

500 x3500

10~17.5

1250~2500

25~70

4000 x3000

XZG-5

500

600 x4000

12~24

1500~4000

30~100

4200 x3200

XZG-6

600

700 x4200

20~29

2500~5000

40~200

4250 x3250

XZG-8

800

900 x4600

24~35

3000~8000

60~600

4500 x3500

XZG-10

1000

1000 x5000

40~62

5000~12500

100~1000

4750 x3750

XZG-12

1200

1300 x5200

50~89

10000~20000

150~1300

5000 x4000

XZG-14

1400

1500 x5400

60~105

14000~27000

200~1600

5250 x4250

XZG-16

1600

1700 x6000

70~105

18700~36000

250~2000

5500 x4500

XZG-18

1800

2000x8000

90~165

36000~45780

300~3000

6500x5500

XZG-20

2000

2200x12000

135~220

45000~56520

500~5000

7500x6500