Description
(Resin Powder) Spray Dryer is the most widely used process in liquid shaping technology. It is suitable for producing powder and granules solid products from solution, emulsion, soliquoid, and pumpable paste materials. Therefore, when the particle size, final moisture, bulk density and granules shape meet the accurate standard, centrifugal spray drying is an ideal drying process.
The centrifugal spray dryer is equipped with a centrifugal atomizer and is currently one of the most widely used dryers in industrial production. The material liquid is added to the high-speed rotating atomization plate, and the liquid is thrown into mist droplets by centrifugal force and then dried in the drying chamber.
Working principle
The feed pump pumps the solution water reducing agent to the high-speed centrifugal atomizer in the center of the drying tower, and uses the centrifugal force generated by the high-speed rotation to atomize the feed liquid into fine droplets. The hot air heated by the heat source enters the drying tower after being reasonably distributed by the air distributor. The mist and hot air are fully mixed in the drying tower, and the heat and mass are exchanged quickly, and they are dried into powder products in a very short time. Products with larger particle diameters are discharged from the bottom of the drying tower, and products with smaller particle diameters follow. The hot air enters the cyclone dust collector, the separated products are discharged through the discharge valve, and the tail gas containing a small amount of dust is emptied after being dusted by the water dust collector.
Performance characteristics
a) One-time continuous drying production can be realized.
b) The mist moment and droplet particle diameter of spray drying can be adjusted slightly.
c) The hot air distribution is reasonable, which eliminates the phenomenon of ceiling and wall sticking.
d) Product particles are finer than pressure spray-dried products.
e) The production process is simplified, the operation is convenient, and the product has good fluidity and instant dissolution.
Applicable Materials
Resin Powder
In polymer chemistry and materials science, resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds.
Food: Amino acid, vitamin, egg powder, bone powder, protein, milk powder, blood powder, soy sauce powder, coffee, tea powder, glucose, pentadiene carboxylic acid, pectin, flavours, vegetable juice, yeast, starch, etc.
Ceramic: Alumina, zirconia, magnesium oxide, Titania, pottery clay, china clay, all kinds of magnetic porcelain and metal-oxides, etc.
Chemical: Aluminum polychloride, disperse dyes, reactive dyes, organic catalyzer, white carbon black, washing powder, zinc sulfate, silica, sodium metasilicate, potassium fluoride, calcium carbonate, potassium sulfate, inorganic catalyzer, wasted liquid, etc.
Specification
Type | Spray Dryer | |||||||
5 | 25 | 50 | 100 | 150 | 200-3000 | |||
Inlet Temperature | ≤ 350°C | |||||||
Outlet Temperature | 80-90°C | |||||||
Evaporate Capacity (kg/h) | 5 | 25 | 50 | 100 | 150 | 200-3000 | ||
Driving Force | compressed air drive | mechanical drive | ||||||
Rotate Speed | 25000 | 22000 | 21500 | 18000 | 18000 | 15000 | ||
Diameter of Atomizer (mm) | 50 | 120 | 120 | 120 | 150 | 180-340 | ||
Heating Source | Electricity | Electricity | electricity +steam+fuel oil+coal gas | electricity +steam | electricity +steam+fuel oil+coal gas | To be solved by users | ||
Electric-heating Power (kW) | 9 | 45 | 60 | 81 | 99 | |||
Recovery Rate (%) | ≥ 95 | ≥ 95 | ≥ 95 | ≥ 95 | ≥ 95 | ≥ 95 | ||
Installation Size | A(mm) | 1000 | 1290 | 1730 | 2500 | 2800 | ||
B(mm) | 2100 | 3410 | 4245 | 5300 | 6000 | |||
C(mm) | 2300 | 4260 | 4645 | 6000 | 6700 | |||
φ D(mm) | 1060 | 1800 | 2133 | 2560 | 2860 | |||
E1(mm) | 1050 | 1200 | 1640 | 2100 | 2180 | |||
E2(mm) | 1050 | 1200 | 1640 | 2100 | 2180 | |||
F(mm) | 750 | 1000 | 1250 | 1750 | 1970 | |||
G(mm) | 530 | 1700 | 1750 | 1930 | 2080 | |||
H(mm) | 530 | 1300 | 1800 | 2600 | 3050 | |||
I(mm) | 530 | 1550 | 1600 | 1780 | 1960 | |||
Advantages of spray drying equipment:
(1) The air inlet device is equipped with a sub-high-efficiency filter, so that the inlet air can reach 100,000-level purification. Air filters, dehumidifiers, heaters, etc. are all modularized, which is easy to disassemble, maintain, and maintain. Fresh air is dehumidified;
(2) The tower wall is equipped with a cold air jacket device, which solves the problem of sticking to the wall of the traditional Chinese medicine extract. At the same time, the wall temperature is low, and the material will not cause coking and deterioration;
(3) The atomizer is specially designed for the characteristics of the extract, and the distance between the atomization plate and the top of the drying tower is increased to avoid the material from topping;
(4) The equipment is equipped with an air sweeping device at the cone, thereby accelerating the flow of materials on the cone;
(5) The inlet air temperature is automatically controlled to ensure that the color, fragrance and taste of the material will not be destroyed;
(6) Two-stage cyclone dust removal device is used for material collection;
(7) Adopting CIP cleaning system, the equipment is easy to clean and meets GMP requirements;
(8) The control system adopts PLC program control, and the entire operating system is simple and easy to understand, making the operation more convenient for workers.
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