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Description
(Sulfuric Acid) 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 a ideal drying process.
Working Principle
Liquid material is atomized through a special pressure nozzle with a high-pressure pump. Hot air enters the dryer after being adjusted by an air distributor. The material and hot air is mixed in the dryer, rapidly carries on heat and mass transfer. Powder or granular products are produced in a very short time. Products with larger particles size are discharged from the bottom of the dryer, smaller particles enter the cyclone with hot air. The exhaust gas is discharged into the air after dust removal in a scrubber. The dryers can be divided into high, middle and low-pressure spray dryers according to different pressures of atomization, while taking into account different flow fields, they are divided into co-current, fountain mode and counter-current spray dryers.
Features:
1. Fast drying speed, also suitable for heat-sensitive particles;
2. The obtained product is spherical particles with uniform particle size, good fluidity and solubility, high product purity and good quality;
3. It has a wide range of applications, including hot air drying, granulation, cooling granulation, spray crystallization, spray reaction, etc.;
4. It can be matched with fine powder return and re-wet agglomeration system to meet the user's requirements for physical diameter.
5. Simple and stable operation, convenient control, easy to realize automatic operation, product particle size, bulk density and moisture can be adjusted within a specific range.
Applicable Materials
Sulfuric Acid Powder
Sulfuric acid (American spelling) or sulphuric acid (British spelling), also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with molecular formula H2SO4. It is a colourless, odourless, and viscous liquid that is soluble in water and is synthesized in reactions that are highly exothermic.
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 | |||
Tips:
1. Contact of hot air flow and mist droplets: When a sufficient amount of hot air flow enters the spray drying chamber, the direction and angle of the hot air flow must be considered, whether it is cocurrent, countercurrent or mixed flow, to maintain good contact with the mist droplets. Carry out ample heat exchange.
2. Atomization: The atomization system of the spray dryer must ensure uniform droplet size distribution, which is very important. Because in this way can the pass rate of product quality be guaranteed.
3. Design of pipe angle and cone angle: We have gained a lot of valuable experience from the production of many spray dryers, which can be shared with you.
Good quality comes 1st; assistance is foremost; business enterprise is cooperation' is our business enterprise philosophy which is regularly observed and pursued by our company for China Quality Bed Granulator Dryer. Our performance continues to rise, and the key customer relationship is maintained more closely, which provides a strong guarantee for the sustainable development of the company. Digging deeper into customer resources is the basis of our company's work, and cooperation and interaction is the process of our work.
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