FANQUN Milk Powder Spray Dryer
FANQUN’s milk powder spray dryer is high-performance, with stable moisture content, good powder flowability, and more. Based on your production capacity, we will offer a customised technology solution tailored to your needs.
- By selecting the appropriate atomization system and controlling the inlet air temperature, it is possible to ensure the uniform particle size, good flowability, and good powder solubility.
- The part that contacts the raw material is fully made of 304 or 316L stainless steel. An automatic washing device is installed at the place where the raw material passes, which can meet the high hygiene standards in the dairy industry.
- Spray drying technology can make milk dry within 5-15 seconds. This ensures that the milk protein, lactose, vitamins, and other components in the milk powder will not change at high temperatures.
- Jiangsufanqun has over 25 years of experience in milk powder spray dryer production. We can handle multiple types of milk powder, including whole milk powder, skim milk powder, whey powder, infant formula, etc.
What is the Milk Powder Spray Dryer?
A milk powder spray dryer sprays milk into fine droplets and then dries it into milk powder, primarily processing liquid materials. Milk powder is a heat-sensitive material. Using a spray dryer allows for instantaneous evaporation of moisture, preventing overheating of the material and avoiding the consequences of denaturation or charring.
How Milk Powder Spray Dryer Works?
The working principle is that the milk is atomised into small drops, then the drops and air fully contact each other, causing the moisture to vaporise rapidly; finally, the powder is collected.
Step 1: Atomization
The milk was pumped into a centrifugal atomiser or a pressure nozzle. The centrifugal atomiser produced uniform droplets under centrifugal force, making it suitable for large-scale production of ＞1 ton/h. However, the pressure nozzle sprays the liquid through a small hole to form an atomised cone spray, which is commonly used in medium and small production of ＜1 ton/h.
Step 2:Hot Air System
Air is heated to a specific temperature by an automatic temperature controller and then comes into contact with the atomised micro-droplets, achieving drying in a short time. The heat source for powder spray drying can be steam, electric, or gas. The most widely used method is steam heating, which offers the highest air cleanliness and safety. While electric heating is also clean, its high operating costs make it less of a preferred choice for factories.
Step 3:Powder Collection System
Hot air carries milk power is achieved through gas-solid separation by centrifugal force. Due to the difference in density， most of the powder is thrown to the outer wall and falls to the bottom for collection. If you need the recovery rate up to 96%-98% or even higher, the blower outlet can also be equipped with a secondary cyclone separator or bag filter for collection.
It is used for producing 26%-28% whole milk powder, through controlling the dry temperature， making the powder maintain a stable internal structure, and keeping the powder taste good.
This dryer has high drying efficiency and a large production capacity. It is suitable for large-scale skim milk powder production.
It was specially designed for infant formula and conforms to infant formula’s high hygiene standards. Balanced nutrition protection, and food safety.
Used in bulk products like milk powder and milk tea powder, it has a large production capacity and is suitable for continuous industrial production.
It dries the milk into large, porous particles, enhancing dissolution speed and dispersibility, specifically designed for instant milk powder.
Staged drying can be achieved by combining a spray tower with a fluidized bed. This method reduces thermal damage, optimizes particle structure, and improves energy efficiency.
The centrifugal spray dryer internally uses a high-speed centrifugal atomizer.It has a large processing capacity, stable operation, and is suitable for large-scale industrial production.
High-pressure nozzle atomization creates finer and more uniform particles, making it ideal for products with stringent particle size requirements.
- Our Factory
- Technical Parameters
| Model | Inlet Temperature (℃) | Outlet Temperature (℃) | Max.Evaporated Amount of Water (kg/h) | Driving Style of Centrifugal Nozzle | Max.Revolution (rpm) | Diameter of Atomizing Disk (mm) | Heat Source | Max.Power of Electric Heater(Kw) | Recovery Rate of Dry Powder (%) | Overal Dimensions (LxW×H)(m) |
| 5 | 140~350 self-control | 80~90 | 5 | compressed airdrive | 2500 | 50 | electricity | 9-18 | ≥98 | 1.8X0.93X2.2 |
| 25 | 25 | mechanical driven | 18000 | 120 | steam plus electrloity | 9-18 (45-72All electric) | ≥98 | 3X2.7X4.26 | ||
| 50 | 50 | 18000 | 120 | steam plus electricity oil coal fuel hot air furnacion | 36electric meke-up | ≥98 | 3.5X3.5X4.8 | |||
| 150 | 150 | 15000 | 150 | 72electric make-up | ≥98 | 5.5X4X7 | ||||
| 200~5000 | 200~5000 | ~8000 15000 | 180~240 | hot air furnace | ≥95 | decide in accordance with practical conditlon |
Note:the evaporated amount of molsture is related to characteristics of material also inlet and outlet temperature of hot air.When outlet temperature is 90℃,Its curve of molsture evaporation is shown in above.(for reference when you choose Model).With renew of products unceasingly,the relevantparameterswill be changed,forgive we won’tannounce In advance.
Key Parameters for Milk Powder Spray Dryer
Material Properties
When you need to order the dryer, the first step is to tell our engineer the following parameters: initial moisture content, target moisture content, solid content, viscosity, and whether it is heat-sensitive. Based on these, we can design an efficient and stable drying system.
| Parameters | Unit | Importance Explanation |
| Initial Moisture Content | % | Determining the amount of water evaporated is a fundamental parameter for calculating equipment size and energy use. |
| Final Moisture Content | % | The air outlet temperature and drying intensity directly affect product quality. |
| Solid Content | % | The solid content affects the difficulty of atomization and the level of energy consumption. |
| Viscosity | cP | The choice of atomization method (nozzle or centrifugal) affects particle size and whether the particles stick to the wall. |
| Heat Sensitivity | Yes / No | Determine the upper limit of the air intake temperature and whether a low-temperature drying solution is needed. |
Inlet Temperature
The inlet temperature of whole milk powder and other types of milk powder is different. Among them, infant formula has the strictest regulations. Each of our milk powder dryers is equipped with an automatic temperature controller. Excessively high inlet air temperature can cause the powder to stick to the wall, excessive moisture evaporation resulting in overly fine powder particles, and energy inefficiency. Similarly, excessively low temperatures can cause excessive moisture content and increased outlet temperatures.
Outlet Temperature
The higher the outlet temperature, the drier the milk powder. The lower the outlet temperature, the more likely it is to clump. Therefore, when the outlet temperature fluctuates, you need to focus on the following questions: Is the evaporation rate balanced? Is the feed too high? Is the heat insufficient? Therefore, the outlet temperature determines the quality of the milk powder.
Evaporation Capacity
The evaporation capacity means how much water can be evaporated in one hour. It is usually expressed in kg/h. If you want mass production， you need greater evaporation. On the other hand, you also need to spend more money on scaling up the powder dryer.
Applications of Milk Powder Spray Dryer
Whole Milk Powder
This milk powder spray dryer is really suitable for whole milk powder. Compared to regular milk powder, it has higher fat and sugar content, which can lead to risks of coking and wall adhesion. The spray dryer can precisely control air intake and air exhaust temperatures, making the milk powder flavour stable and reducing milk powder loss.
Skim Milk Powder
The milk spray drying equipment excels at drying skim milk powder with enhanced efficiency. The dryer can control the particle size of skim milk powder to make it dissolve quickly. The skim milk powder has higher protein content, and stable temperature control can avoid localised overheating, which leads to protein denaturation.
Infant Formula
The Infant Formula has an extremely heat-sensitive, milk powder spray dryer that can retain the powder’s active ingredients and nutrients, which are not destroyed. There are no blind spots in the dryer; the dryer’s fully automatic cleaning conforms to the high hygiene standards of infant formula.
FanQun helps many milk powder production and dairy processing factories. If you want to expand production or establish a production line， please tell our engineer your feed’s initial moisture content, target moisture content, throughput, and whether it is heat-sensitive. We are online 24/7 and help you design a solution that is uniquely yours.
Whole milk powder, with its high fat content, is very likely to stick to the inner wall of the machine. A spray dryer can effectively address this issue by accurately controlling the drying temperature and optimising airflow.
Yes. Industrial spray dryers are designed for 24/7 continuous operation with stable performance.
The powder requires a high standard of hygiene and safety. Each dryer is equipped with three levels of purification systems. An automatic washing device is installed where the raw material passes through.
Yes, we will do a material test before purchase and provide test reports. This can help reduce your investment risk.
If you need a high request for the particles, you can choose nozzle atomization. It sprays finer particles. Conversely, centrifugal atomization is more suitable for large-scale mass production. Our engineer will customise it for you according to your actual needs.
