CSD-5 Spray Dryer Suitable for Producing Powdery and Granular Products from Liquid Raw Materials
- Wonsen
- China
- 120 days
- Strong
① Adopt rotary cutting air inlet technology and adjustable volute to ensure uniform distribution of materials and no reverse top.
② The heat source can be electric heating, steam heating or a combination of various heating methods to ensure high efficiency and low consumption.
CSD-5 Spray Dryer Suitable for Producing Powdery and Granular Products from Liquid Raw Materials


Non-OEB case
Introduction
Spray dryer is a widely used process in powder forming and drying industries. It is suitable for producing powdery and granular products from liquid raw materials such as solutions, emulsions, suspensions, and pastes. Therefore, spray dryer is an ideal process when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must meet precise criteria. Spray dryer is suitable for food, pharmaceutical, energy and chemical fields.
The spray dryer is mainly composed of a hot air inlet system, a drying tower body, a liquid inlet spray system, a powder collection and dust removal system, an online detection system and a control system.
Work principle
After the fresh air is heated into clean hot air by the air inlet filter and heater, it enters the air distributor at the top of the drying tower body, and the hot air enters the drying tower body uniformly in a spiral shape. The feed liquid is sent to the centrifugal sprayer or pressure nozzle at the top of the drying tower by the supply pump, and is rotated and sprayed into extremely fine mist droplets.In contact with the hot air downstream, the moisture evaporates quickly, and the finished product is dried in a very short time. The finished product is discharged from the bottom of the drying tower and the cyclone separator, and the waste gas is purified by the dust removal system and then emptied. When the dried product is easily oxidized or toxic, the inactive gas medium formed by circulating nitrogen can be used to replace the common air medium for spray drying (or cooling granulation). In addition to recovering the product, organic solvent.
Process flow


Type
Principle
Applicable Scenarios
Advantages and Disadvantages
Remark
Centrifugal
High-speed rotating disk centrifugal force
High viscosity slurry
Uniform particle size ,High energy consumption
15~50μm
Pressure
High-pressure nozzle spray
Low viscosity solution
Simple structure Relatively easy to clog
50~100μm
Airflow
Compressed air atomization
Laboratory/Small Batch
High proportion of fine powder,High energy consumption
10~20μm
Type | Principle | Applicable Scenarios | Advantages and Disadvantages | Remark |
Centrifugal | High-speed rotating disk centrifugal force | High viscosity slurry | Uniform particle size ,High energy consumption | 15~50μm |
Pressure | High-pressure nozzle spray | Low viscosity solution | Simple structure Relatively easy to clog | 50~100μm |
Airflow | Compressed air atomization | Laboratory/Small Batch | High proportion of fine powder,High energy consumption | 10~20μm |

Features
1) Adopt rotary cutting air inlet technology and adjustable volute to ensure uniform distribution of materials and no reverse top.
2) The heat source can be electric heating, steam heating or a combination of various heating methods to ensure high efficiency and low consumption.
3) The whole machine is coMPact and beautiful in structure, easy to operate, the hot air chamber can be disassembled and cleaned, and the inlet air temperature can be adjusted and controlled.
4) Air jacket cooling system is adopted for the drying chamber and top parts to prevent the material from being melted and hung on the chamber
5) The inner wall of the drying chamber adopts an air rotary blowing device to eliminate or reduce the sticking phenomenon.
6) The powder collecting system adopts dehumidification air blowing cooling technology to cool the product and prevent moisture absorption and agglomeration.
7) It with GMP production requirements, dry air cleanliness is better than 100,000 grades, easy to clean, and product quality is stable.
Technical parameter
No. | Item | Parameter | |
1 | Athanol evaporation | 5kg/h (based on athanol,150℃ inlet air, 70°C exhaust air) | |
2 | inlet air temperature | room temperature~200℃(Control accuracy ±2℃) | |
3 | Electric heater power | 9kW | |
4 | Fan power | 1.5kW | |
5 | Centrifugal atomizer power | 0.25kW | |
5 | Dry powder harvest rate | ≥90% (Based on anhydrous calcium carbonate) | |
6 | Dry powder water content | ≤5% | |
7 | External conditions | Power supply | 3PH/380V/50Hz |
Compressed air pressure | 0.6~0.8MPa | ||
Compressed air consumption※ | 30L/min | ||
nitrogen pressure | 0.4~0.6MPa | ||
nitrogen consumption※ | 160L/min | ||
Cleaning water pressure | 0.2~0.3MPa | ||
Cleaning water consumption※ | 100L/min | ||
8 | Referenced dimensions (L×W×H)※ | L2210×W1760×H2060 mm According to the final actual drawing | |
9 | "※" is a reference value, consumption, yield, net weight of equipment, dimensions and other standards for reference only, the actual parameters and materials, configuration, process related. | ||
Equipment Security
Safety devices, circuit safety, power under-voltage phase sequence protection, and program interlocks are used to ensure equipment safety.








