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Spray drying equipment
Author:admin Release date:2014-7-7 9:15:52 Views: 949
overview:
centrifugal spray drying (spray drying tower) is the process of liquid forming process and drying industry the most widely used. For the most from the solution, emulsion, suspension emulsion and paste liquid in production of the powdery, granular solid products. Therefore, when the product particle size distribution, residual moisture content, density and shape of the particles can meet the precision standard centrifugal spray drying, the drying process is very ideal.

The working principle of :
Air passing through the filtering and heating, into the top of dryer hot air distributor, and then spirally and evenly into the drying chamber. The high-speed centrifugal atomizer top feed through the body (rotation), sprayed into the extremely mist liquid beads, and the heat air flow contact, in a very short time drying to finished products, finished products output continuously from the bottom of the drying tower and the cyclone separator, exhaust fan emptying by.

The characteristics of
1, fast drying speed, feed liquid is atomized, greatly increased surface area, in contact with the hot air in the process, flash evaporation of water can be 95%-98%, the drying time is only several seconds, especially suitable for drying heat sensitive materials.
2, the product has good uniformity, mobility and solubility, the purity of product is high, good quality.
3, the production process is simplified, convenient operation and control. The moisture content 40-60% (special materials up to 90%) of the liquid to a dried powder grain products, dried and crushed without screening, reduce the production processes, improve product purity. Product size, bulk density, moisture content, in a certain range can be adjusted by changing the operating conditions, control and management are very convenient.

points
1, atomization atomization system: unit must ensure that the droplet size distribution, which is crucial. Because it can ensure that the qualified rate of product quality.
2, heat flow and droplet contact: a sufficient amount of heat flow into the drying chamber, must consider the heat flow direction and angle, both cocurrent, countercurrent or mixed flow, to ensure full contact and droplet, in order to fully exchange heat.
Design of 3, pipe angle and cone angle: we got some empirical data from the production of nearly 1000 units, and everyone can share.
The range of application of
Food making products: amino acid, vitamin, egg powder, powder, seasoning, protein, milk powder, blood powder, soy sauce powder, Coffee, tea
The Portuguese grape sugar, potassium sorbate, pectin, flavor spices, vegetable juice, yeast, starch,
Tao porcelain: alumina, zirconia, titania, Magnesium Oxide, titanium and magnesium, clay, China clay, a variety of ferrite and metal oxides
Chemical products: polyaluminum chloride, disperse dyes, reactive dyes, organic catalyst, silica, washing powder, zinc sulfate, silica
Partial sodium silicate, potassium fluoride, calcium carbonate, potassium sulfate, inorganic catalysts, all kinds of waste liquid.

technical specifications
℃) ℃) according to process requirements
project / model (LPG)
5
25
50
100
150
200
500
800
1000
2000
3000
4500
6500
entrance temperature (
140-350 control
exit temperature (
80-90
spray type
high-speed centrifugal atomizer (mechanical transmission or stepless frequency control options)
on water evaporation (kg/h)
5
25
50
100
150
200
500
800
1000
2000
3000
4500
6500
atomizer speed (RPM)
25000
22000
21500
18000
16000
12000-13000
11000-12000
disc diameter (mm)
60
120
150
180-210
power of electric heating (K W)
8
31.5
60
81
99
with other heat source
powder recovery rate (%)
about 95
length (m)
1.6
4
4.5
5.2
7
7.5
12.5
13.5
14.5
according to the process flow,
site conditions and user requirements to determine
width (m)
1.1
2.7
2.8
3.5
5.5
6
8
12
14
the height of the tower body (m)
1.75
4.5
5.5
6.7
7.2
8
10
11
15
head lifting height (m)
--
2.5
2.5
3.2
3.2
3.2
3.2
3.2
3.2
note: the above data are for reference only. Moisture evaporation and the properties of materials, solid content and air inlet and outlet temperature. The user can select the heating mode according to the local energy situation, according to the material characteristics in the selection of dust, dust removal methods.
 
 
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