Features of FANQUN Chemical Spray Dryer
FANQUN’s chemical spray dryer offers high performance on the drying efficiency, product quality, and more, making it suitable for the chemical industry to preserve active components and achieve continuous production.
- Made of 316L stainless steel to meet high cleanliness demands and minimize residual moisture ≤0.5%;
- Feature high production capacity within a range of 50 L/h to 5,000 L/h;
- Offer an extremely rapid drying process, which can be controlled within a few seconds to tens of seconds;
- The spray dryer used for chemical efficiently preserve active ingredients and ensure completability of raw materials;
- All of FANQUN’s chemical spray dryers have obtained international certifications such as CE and ISO 9001.
PFQ-YPG-HXseries Chemical Spray Dryer
This unit is an apparatus that can perform drying and granulation simultaneously. By adjusting the pressure, flow rate, and atomizing orifice size according to process requirements, ball granules of the desired size and ratio can be obtained.
The working process of the unit is as follows: The raw material liquid is pumped by a high-pressure pump and atomized into fine droplets, which then mix with hot air and descend. Most of the powder material is collected at the bottom discharge outlet. The waste air and fine powder are separated in a cyclone separator. The waste air is exhausted by a draught fan, while the powder is collected at the bottom of the cyclone. A two-stage dust collector can also be equipped at the outlet, achieving a recovery rate of over 96%-98%.
The tower body, pipes, and separator of the unit—all parts that contact the raw material—are made of SUS304 stainless steel. There is an adequate layer of thermal insulation between the inner and outer walls of the tower body, filled with fine glass wool. The tower body is also equipped with an observation door, sight glass, lamp housing, and control instruments, which are operated via the electric control panel.
The heat source for the unit can be steam or an electric heater. Its features include convenient operation, quick startup, compact structure, and clean hot air. Furthermore, with the control and regulation devices installed inside the electric control cabinet, the inlet temperature can be controlled through stepless regulation. Steam or coal fuel can be applied in locations without electricity, serving as a partial or complete replacement for electric heating. The factory can provide different heating methods according to the customer’s practical conditions.
Features of PFQ-YPG-HXseries Chemical Spray Dryer
- The drying speed is fast. The surface area of the raw material liquid increases significantly after atomization, allowing 95%–98% of the moisture to be evaporated instantly. The drying process takes approximately ten to several tens of seconds, making it particularly suitable for heat-sensitive materials.
- The finished product consists of spherical granules with uniform size, good fluidity and solubility, high purity, and excellent quality.
- It has a wide range of applications. Depending on the characteristics of the raw material, hot air can be used for drying or cool air for granulation. The equipment exhibits strong adaptability to various raw materials. Operation is simple and stable, and the control system is straightforward and convenient, making it easy to achieve automatic operation.
Application of PFQ-YPG-HXseries Chemical Spray Dryer
- Chemical industry: Organic catalysts, resins, synthetic detergents, oils, thiamine, dye intermediates, white carbon black, graphite, ammonium phosphate, etc.
- Foodstuff: Amino acids and similar substances, flavorings, proteins, starch, dairy products, coffee extract, fish powder, meat extract, etc.
- Pharmaceutical: Traditional Chinese medicines, pesticides, antibiotics, medicinal beverages, etc.
- Ceramics: Magnesium oxide, kaolin, various metal oxides, dolomite, etc.
- Granulating via atomization: Various fertilizers, aluminum oxide, ceramic powder, pharmaceuticals, heavy metal super-hard steel, detergents, traditional Chinese medicines, etc.
- Granulating via atomization cooling: Amino fatty acids, paraffin wax, glycerates, tallow, etc.The dryer is often used in the fields of atomizing crystallization, concentration, and reaction processes.
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- Our Factory
- Technical Parameters
| Model | Evaporated Amount (kg/h) | Diaphragm Pump Power (kW) | Diaphragm Pump Pressure (MPa) | Heating Way | Diameter of Tower Body (mm) | Total Height of Equipment (mm) |
| YPG-25 | 25 | 0.35 | It can be regulated from 0.6 to 5, and generally, it will be from 1 to 3. | Electricity + steam Electricity + coal fuel (oil) hot air furnace | 1800 | 7800 |
| YPG-50 | 50 | 4 | 1800 | 9200 | ||
| YPG-100 | 100 | 7.5 | 2400 | 11600 | ||
| YPG-150 | 150 | 11 | 2600 | 14000 | ||
| YPG-200 | 200 | 15 | 2800 | 15300 | ||
| YPG-300 | 300 | 22 | 3200 | 17100 | ||
| YPG-500 | 500 | 30 | 3800 | 19000 | ||
| YPG-1000~10000 | The index can be affirmed in accordance with practical conditions | |||||
Working Principle of Spray Dryer Used for Chemical
A spray dryer mainly relies on a high-pressure nozzle to atomize liquids and then dries them by hot air. The working principle of a spray dryer used for the chemical industry typically includes the following steps:
- Step 1 – Preparation of Raw Material: The chemical industry involves various different types of raw materials, such as solutions, suspensions, or emulsions. Before the drying process, these liquids should be processed to control their solid content, viscosity, and flowability. The properties of raw materials are directly connected to finished powder quality.
- Step 2 – Atomization: The spray dryer is equipped with a nozzle with high pressure, completely atomizing raw liquids into fine droplets. It controls the droplet size within a range of 10- 150μm. In general, the more even the droplets, the higher the consistency of the finished powder.
- Step 3 – Drying: Droplets generated by the atomization process are then conveyed into a drying tower of the spray dryer. They contact and mix with hot air in the tower to achieve the drying process. In an extremely short time(seconds), 95%- 98% of the water content of droplets will evaporate rapidly. You can adjust the temperature to precisely control the drying process.
- Step 4 – Separation and Collection: In the final process, the finished powder and exhaust gas can be separated by gravity or centrifugal powder. The chemical spray dryer features a cyclone separator to achieve the separation works. It also improves high product recovery rate by the bag filter while also achieving exhaust gas emissions.
Key Components of Chemical Spray Dryer
The performance of a chemical spray dryer is connected to its key components, such as atomization system, drying tower, and more. Learning their features and properties may help you make a better purchase decision.
Atomization System
The atomization system of a spray dryer typically consists of nozzles, centrifugal atomizers, pumps, and gas sources. Your selection on these components is directly connected to the particle size, distribution, and flowability of final products. For example, particles produced by high-pressure nozzles feature coarse particle size, dense structure, and narrow distribution. It is more suitable for materials with high solid content and high viscosity, such as ceramic powders. While the centrifugal atomizer offers an adjustable range of particle size within 30- 120μm, achieving uniform and consistent powders.
Drying Tower
As one of the most key components of a chemical spray dryer, the drying tower is important to ensure stable air flow and high powder quality. Its core parameters including diameter, height, and inner wall polish, determine the drying efficiency and final products features. You should ensure the machine you choose can offer sufficient space for droplets within the drying tower, improving residence time while also reducing sticking issues.
Heat Source System
Heat sources of the chemical spray dryer include steam, electricity, gas, and others. The steam heating method is suitable for most applications, offering stable temperature and low operation costs. While the gas features good performance on thermal efficiency, making it more suitable for large-scale projects. However, the gas heating process may generate exhaust gases, which will cause environmental pollution. If your project has strict demands on the cleanliness of the drying process, an electric heating system can meet the requirement.
Powder Collection System
The chemical spray dryer is generally equipped with a cyclone separator and a baghouse filter to collect finished powder while also handling the exhaust gases. The cyclone separator achieves initial collection and separation to handle 95% powder with medium particle sizes. Then the small size particles can be collected by the baghouse filter, enhancing product recovery rate to 98% or higher.
Why Spray Dryer for Chemical
Safety
The spray dryer is mainly made of 316L stainless steel to achieve smooth surface, reducing sticking issues to maintain stable operation. It achieves low residual moisture to prevent cross-contamination, meeting strict cleanliness demands of the chemical industry. The spray dryer also supports employing a condenser in an enclosed system to condense and recover solvents, thereby reducing VOCs emission.
High Efficiency
Compared to traditional drying methods, the spray dryer offers high efficiency to achieve the drying process within several seconds. Raw materials are atomized into fine droplets to increase their surface area, thereby improving the drying speed. This type of dryer supports continuous operation, which is especially suitable for the large-scale production demands of the chemical industry. It also features high drying capacity within the range of 50 L/h to 5,000 L/h, achieving large-scale powder production.
Excellent Product Quality
- Preserve Active Components: Rapid drying process of the machine ensures the completability of raw materials. Although the inlet gas temperature is relatively high, the actual temperature of the drying tower is lower than the exhaust gas temperature due to the evaporation process of droplets. The dryer preserves heat-sensitive components of the materials to reduce the risk of thermal decomposition. It is suitable used to handle surfactants, organic salts, and other biological products.
- Uniform Particle Size: By adjusting the atomization parameters, feeding speed, and drying temperature, you can control the particle size of final products. The chemical spray dryer achieves high uniformity to ensure the consistency of powder.
- High Purity: The enclosed structure of the spray dryer used in the chemical industry efficiently reduces pollution caused by external factors. This machine achieves high product purity and is suitable to handle high-purity chemicals, pharmaceutical intermediates, and materials that are easy to oxidate.
Flexible Drying Process
The spray dryer is easy to suit different types of liquids and is flexible to produce various shapes of powder, meeting different demands. You can adjust key parameters of the drying process to achieve high solubility, hollow particles, or porous structure, reducing the difficulty of subsequent processes.
As a professional chemical spray dryer supplier, FANQUN always provides reliable and high-quality products for you. We have mature production lines and advanced design technology to ensure high stability and performance of the chemical spray dryer. If you have any questions about the dryer, please feel free to contact us for professional solutions.
The sticking issues are typically caused by the drying tower temperature and material viscosity. If the temperature of the drying tower is too low, the material is difficult to output thereby causing sticking issues. Improving solid content of raw materials may be helpful. You can also check the insulation structure of the drying tower, ensuring that heat does not escape.
When handling organic solvents, the chemical spray dryer can be equipped with an enclosed circulation system to achieve the drying process. The machine uses inert gases as the drying media to control oxygen content below the safe level. After the drying process, you can employ a condenser to collect solvents, reducing VOCs emission while also decreasing costs.
You can increase the solid content of the raw materials to improve the particle size, thereby enhancing the flowability of the finished powder. Adjusting the atomization pressure of the spray dryer is also helpful to optimize particle size distribution. If your project has strict demands on the flowability, you can add auxiliary flow aids into the materials such as silica.
