High Speed Centrifugal Spray Dryer
In the GZ series high-speed centrifugal spray dryer that uses the atomizing disc in high-speed centrifugal motion, materials are atomized into vaporific droplets for heat exchange with hot air of special distribution in the tower body in a matched motion curve, and evaporated in a very short time to form the even and powdery (granular) Product.
Spray drying is the technology most widely used in the liquid technology shaping and in the drying industry. The drying technology is most suitable for producing solid powder or particle products from liquid materials, such as: solution, emulsion, suspension and pumpable paste states, For this reason, when the particle size and distribution of the final products, residual water contents, mass density and the particle shape must meet the precise standard, spray drying is one of the most desired technologies.
Advantages:
High drying speed, surface area greatly increased after atomization of feed liquid, 95%-98% water instantly evaporated in hot air flow, the time of drying only a few seconds; especially suitable for drying of heat-sensitive materials.
Final product has good uniformity, liquidity, solubility and quality, and high purity.
The production process is simplified, and easy for operation and control. Liquid with 40%-60% moisture content (or even high up to 90% for special materials) can be instantly dried into particles that may not be smashed and screened to reduce the process and improve the purity of product. The particle size, density and moisture content can be adjusted in certain ranges by changing the operating conditions. Therefore, the production process is easy for control and management.
Applications:
Widely used in the drying effects of chemical, food, pharmaceutical, petrochemical, light industry, pesticide and other industries.
| Model & spec | ||||||
| GZ-5 | GZ-25 | GZ-50 | GZ-100 | GZ-150 | GZ-200-2000 | |
| inlet temperature ℃ | 140-350 automatically controlled | |||||
| outlet temperature ℃ | ~80-90 | |||||
| Max.water evaporation capacity | 5 | 25 | 50 | 100 | 150 | 200-2000 |
| centrifugal spraying nozzle transmission mode | compressed air transmission | Mechanical transmission | ||||
| Rotation speed rpm | 25000 | 18000 | 18000 | 18000 | 15000 | 8000-15000 |
| Spraying disc diameter mm | 50 | 100 | 120 | 140 | 150 | 180-340 |
| Heat supply | Electricity | Electricity steam | Electricity steam,fuel oil and gas | Settled by users themselves | ||
| Max.Electric heating power kw | 9 | 36 | 63 | 81 | 99 | |
| overall dimensions m | 1.8×0.93 ×2.2 | 3×2.7 ×4.26 | 3.7×3.2 ×5.1 | 4.6×4.2 ×6 | 5.5×4.5 ×7 | Depends on the concrete conditions |
| Dried powder recovery rate % | ≥95 | ≥95 | ≥95 | ≥95 | ≥95 | ≥95 |
| Note:For the water evaporation capacity, material property,the inlet and outlet temperatures,please refer the following diagram for reference. | ||||||
Attentions before Order:
Liquid name and property:solid contents(or water contents),viscosity,surface tension and PH value;
Dry powder density residual water contents allowed,particle size,and maximum temperature allowed.
Output: shift time daily;
Energy that can be available at user’s site: steam pressure, electricity properly,fuel of coal,oil and natural gas;
Control requirement: whether or not the inlet and outlet temperatures should be controlled. Whether the whole control system should be fully automatic or semi-automatic;
Powder collection requirement: whether it's necessary to use cloth bag filter and the requirement of the environment of the exhausted gas.
Other special requirements.
