The machine’s principle of work is the air through the filter and heating devices, into the drying chamber at the top of the hot air distributor, through the hot air distributor of hot air to evenly into the drying chamber, is spiraling, turning and delivered the material liquid device in the drying chamber at the top of the centrifugal spray head, the material liquid is sprayed into tiny fog droplets, make the material liquid significantly increased surface area of contact with the hot air, moisture to evaporate quickly, dry products within a very short time. The coarse product is recovered by the collecting cylinder at the bottom of the dryer, and the waste gas is discharged by the centrifugal fan.
The drying rate is rapid. After centrifugal spray, the surface area of the material solution is greatly increased. In the high-temperature airflow, 95-98% of the water can be instantly evaporated, and the drying time only needs 10 seconds.
Parallel flow spray drying
Spray drying with parallel flow, the temperature of droplet is not high, and the quality of the product is good. In spray drying chamber, droplet same direction with hot air flow, while the hot air temperature is higher, but as a result of dry hot air into the indoor immediately contact with the spray droplets, indoor temperature drops, not make the dry material overheating, suitable for drying of thermal sensitive material, discharge product depends on the temperature of exhaust temperature, and lower exhaust temperature.
According to the material properties, you can use hot air drying, also can use cold air modeling. A large number of products with very different characteristics can be produced with this machine, commonly used in the following categories: Polymers and resins, dyes, colourants, ceramics, glass, herbicides, insecticides, carbohydrates, dairy products, mixed acids, abattoir by-products, blood and fish products, deep rinsing agents and surface pollutants, fertilizers, organic compounds, inorganic compounds.
Because the drying process is instantaneous, the particles of the product can basically keep the droplets similar to the ball, and the product has good dispersion, fluidity and solubility.
The production process is simplified and the operation control is convenient. Spray drying is usually used for solvents with a wet content of 40-60%. For special materials, even if the wet content is as high as 90%, it can also be dried into powder products at one time. Most products do not need to be crushed and screened after drying, which reduces the production process, simplifies the production process, and provides the purity of products. For the product particle size, precision, moisture, can change the operating conditions for adjustment, control, management is very convenient in a certain range.
Long service life
In order to make the material free from pollution and prolong the equipment life, all parts contacting with the material are made of 1Cr18Ni9T stainless steel material. In order to make the operation convenient, the control system adopts integrated operation, namely installing the indicator device and the opening and closing device of each part in the control cabinet.
|air inlet temperature control
|air outlet temperature control
|water evaporation capacity
||peristaltic pump regulation
|temperature control accuracy
|average drying time
|stainless steel tank diameter