Qiao Feng's low-temperature spray dryer (QFN-PWDW series spray dryers can achieve a temperature range of 35 ° C to 100 ° C) can achieve a continuous 35 ° C low-temperature spray dryer with high recovery Retain material activity. It can be customized into high and low temperature integrated spray dryer (QFN-PWGD) series high and low temperature spray dryer, which can achieve the range of 35 degrees to 220 degrees), and can be dried by spray. Typical materials: Protease, camel milk, enzyme preparations, plant extracts and other low-temperature equipment are carefully crafted by our company for thermosensitive materials, which can maintain the original material activity, such as polymers, microorganisms, sugar containing materials, etc. We can customize a high-low temperature integrated machine according to user requirements, which can be used for low-temperature or high-temperature testing, and is a multi-purpose integrated equipment.

Experimental low temperature spray dryer;
1. Solve the problem of material moisture regain
2. The minimum processing capacity is 50ml/hour;
3. Inlet air temperature: 35-140 degrees (if QFN-GD series is selected, inlet air temperature: 35-220 degrees for large-scale drying);
4. It can be upgraded to high and low temperature integrated spray dryer;
The low-temperature spray dryer is mainly applicable to universities, research institutes, food, medicine, chemical industry, enterprises and laboratories to produce micro particle powders. It has broad spectrum applicability to solutions such as emulsions and suspensions, and is suitable for drying heat sensitive substances such as biological products, biological agricultural drugs, enzyme preparations, etc. Because the sprayed materials are only subjected to the drying air system when sprayed into fog like droplets, they are only heated instantly, which can keep the active ingredients of these active materials intact after drying. This type of spray dryer can realize low temperature atomization drying and high and low temperature atomization drying dual-use models for spray drying at normal temperature.
● Adopting P I. D Temperature control system.
Motor reverse phase and overload protection function.
The structure is simple and compact, easy to maintain, and the failure rate is extremely low.
The overall appearance is made of stainless steel material, which is bright and elegant.
Color LCD touch screen parameter display: inlet temperature/outlet temperature/peristaltic pump speed/air volume/needle frequency.
Qiao Feng's innovative drying air system can achieve low-temperature drying
● Full automatic control: one button startup, after setting spray process parameters, the temperature reaches the preset temperature, the peristaltic pump starts automatically, the touch screen displays the operation animation, and the operation process is clearly displayed; When shutting down, simply press the stop button and the machine will automatically shut down safely.
● Manual control: If you need to adjust the process parameters during the experiment, you can easily switch to manual mode to set the parameters.
Equipped with a nozzle cleaner (through needle), it will automatically clear when the nozzle is blocked, and the frequency of the through needle can be automatically adjusted.
● Shutdown protection function: When shutting down, simply press the stop button, and the machine will immediately stop running except for the fan, ensuring that the equipment will not burn out the heating part due to misoperation (forcibly shutting down the fan).
● The spray, drying and collection system is made of high-quality stainless steel materials, so that the drying process can be carried out in a pollution-free environment.
Equipped with an imported oil-free air compressor, the particle size of the powder sprayed follows a normal distribution, with excellent fluidity and very low noise, less than 60db.
● Two fluid spray atomization structure, the whole machine is made of high-quality stainless steel materials, compact design, and no auxiliary equipment is required.
The design of dry temperature control adopts real-time PID constant temperature control technology, which enables accurate temperature control in the entire temperature range and heating temperature control accuracy of ± 1 ℃.
The feeding amount can be adjusted by the feeding peristaltic pump, and the minimum sample size can reach 50ml.
The dried finished dry powder has a relatively uniform particle size, with over 95% of the dry powder within the same particle size range.
For viscous materials, there is a nozzle cleaner (through needle) that automatically clears the nozzle when it is blocked, and the frequency of the through needle can be adjusted automatically.
Technical parameters of cooling system
Latest design microcomputer precision constant temperature control system
A well-designed and meticulous refrigeration system with high refrigeration efficiency, fast cooling, low noise, and minimal vibration. The compressor cascade refrigeration system and heat exchange system ensure the reliable operation and rapid cooling of the instrument
Humanized design: The two side folding handle is convenient for moving the instrument, and heavy-duty self-locking casters are used for easy movement.

The low-temperature tank adopts advanced integral foaming technology, which has good insulation performance and effectively reduces the loss of cooling capacity
The professional circulation design ensures good horizontal and vertical uniformity of the liquid in the tank, with a temperature fluctuation of ± 0.05 ° C and a display resolution of 0.1 ° C