Centrifugal spray dryerThe most widely used process in liquid forming and drying industries. It is suitable for producing powder and granular solid products from solution, emulsion, suspension and paste liquid material. Therefore, spray drying is an ideal process when the particle size distribution, residual moisture content, bulk density, and particle shape of the finished product must meet the exact criteria.
Working principleThe air is filtered and heated and enters the air distributor at the top of the dryer. The hot air enters the drying chamber uniformly in a spiral form. High speed centrifugal atomizer top feed through the body,(rotate)The spray is formed into very fine mist droplets, which are in contact with hot air streams and can be dried in a very short time. The finished product is continuously output from the bottom of the drying tower and the cyclone separator, and the waste gas is empty by the blower.
Product featuresThe drying rate is fast, and the surface area of the material is greatly increased after atomization, and can be evaporated instantaneously in the hot air streamNinety-five%-98% moisture, drying time of just a few seconds, particularly suitable for drying heat sensitive materials.
The product has good uniformity, fluidity and solubility. The product has high purity and good quality. The production process is simplified and the operation and control are convenient. For moisture content40—60%(Special material up toNinety%)The liquid can be dried into powder products at once. After drying, the process can be reduced without grinding and screening, and the production process can be reduced and the purity of the product can be improved. The size, density and moisture of the product can be adjusted in a certain range by changing operating conditions, and the control and management are very convenient.
technical parameter
Model specification |
Five |
Twenty-five |
Fifty |
One hundred |
One hundred and fifty |
Two hundred |
Three hundred |
Four hundred |
Five hundred |
Six hundred |
Eight hundred |
One thousand |
Two thousand |
Inlet temperature |
150-300℃ |
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outlet temperature |
90-140℃ |
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Spray form |
High speed centrifugal atomizer (mechanical drive or stepless variable frequency speed regulation) |
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Moisture evaporation(kg/h) |
Five |
Twenty-five |
Fifty |
One hundred |
One hundred and fifty |
Two hundred |
Five hundred |
Eight hundred |
One thousand |
Two thousand |
Three thousand |
Four thousand and five hundred |
Six thousand and five hundred |
Atomizer speed(rpm) |
Twenty-five thousand |
Twenty-two thousand |
Twenty-one thousand and five hundred |
Eighteen thousand |
Fifteen thousand |
12000-13000 |
11000-12000 |
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Diameter of atomizing plate(mm) |
Sixty |
One hundred and twenty |
One hundred and fifty |
180-210 |
Determined according to process requirements |
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Electric heating power(kw) |
Nine point six |
Thirty-one point five |
Sixty |
Eighty-one |
Ninety-nine |
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Dry powder recovery(%) |
≥95 |
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Occupation length(m) |
One point six |
Four |
Four point five |
Five point two |
Seven |
Seven point five |
Twelve point five |
Thirteen point five |
Fourteen point five |
According to the technological process and the condition of the factory |
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Covering width(m) |
One point one |
Two point seven |
Two point eight |
Three point five |
Five point five |
Six |
Eight |
Twelve |
Fourteen |
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Tower height(m) |
One point seven five |
Four point five |
Five point five |
Six point seven |
Seven point two |
Eight |
Ten |
Eleven |
Fifteen |
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Nozzle lifting height(m) |
- |
Two point five |
Two point five |
Three point two |
Three point two |
Three point two |
Three point two |
Three point two |
Three point two |
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Note: moisture evaporation is related to material characteristics, solid content and inlet temperature of hot air. The user can select heating mode according to the local energy situation and dust collection and dust removal mode according to the material characteristics. |
Order note:
Material name, physical property: solid content(Water content)Viscosity, surface tension,PHValue.
◆Dry powder capacity, allowable residual water content, particle size, and permissible maximum temperature.
◆Every day, the opening time yield.
◆Available energy: steam pressure available,The capacity of coal, oil and gas can be supplied.
◆Control requirement: does the inlet and outlet temperature require automatic control?.
◆Powder collection requirement: whether or not to install a bag trap, the environment to exhaust emissions requirements.
◆Other special requirements.
Application range
*chemical industry:Battery raw material, basic dyestuff, pigment, dye intermediate, compound fertilizer, formaldehyde, silicic acid, catalyst, sulfuric acid, amino acid, white carbon and so on.
*Plastic resin:AB,ABSEmulsion, urine, aldehyde resin, phenolic resin, sealant(urea)Formaldehyde resin, polyethylene, polyvinyl chloride, etc..
*The food industry: fat rich milk, cacoa milk powder, milk replacer, blood meal, egg hunt(yellow)Whole egg, etc..
*Foods and plants: oats, chicken juice, coffee, instant tea, spices, meat, protein, soy, peanuts, proteins, hydrolysates, etc..
*Sugar:Corn syrup, corn starch, glucose, pectin, maltose, potassium sorbate, etc..
*Ceramic: alumina, ceramic tile material, Magnesium Oxide, talcum powder
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