Wu Hai small spray dryer design principle main features operation instructions
August 06 11:12:32, 2025
The **Wuhai Small Spray Dryer** is a high-performance, compact laboratory-scale spray dryer designed by senior engineers from Xinzhuang Instrument. It has obtained CE certification and features advanced imported nozzles for efficient atomization. This machine is ideal for use in universities, research institutions, and industries such as food, pharmaceuticals, and chemicals. It can process a wide range of materials including emulsions, suspensions, and heat-sensitive substances like biological products, enzymes, and bio-pesticides.
One of the key advantages of this dryer is its ability to maintain the activity of sensitive materials during the drying process. The material is only exposed to high temperatures briefly when it is sprayed into fine droplets, which helps preserve the integrity of active ingredients. This makes it an excellent choice for handling delicate samples without compromising their quality.
**Key Features:**
- **Imported Nozzle:** High-efficiency atomization ensures uniform particle size and better drying performance.
- **Color LCD Touch Screen:** Displays real-time parameters such as inlet temperature, outlet temperature, peristaltic pump speed, air volume, and nozzle frequency.
- **Fully Automatic Control:** One-button start-up allows the system to automatically adjust settings, monitor the process, and shut down safely with a single stop command.
- **Manual Mode:** Offers flexibility for real-time adjustments during experiments, with dynamic visual feedback on the screen.
- **Nozzle Cleaner (Through Needle):** Automatically clears blockages and adjusts needle frequency for consistent operation.
- **Shutdown Protection:** Prevents damage from accidental power-off by keeping the fan running after stopping the main functions.
- **Transparent Glass Construction:** Made from high-quality borosilicate glass, ensuring a clean and contamination-free drying environment.
- **Oil-Free Air Compressor:** Provides stable airflow, low noise (<60dB), and good powder fluidity.
- **Two-Fluid Atomization System:** Compact design with stainless steel construction, eliminating the need for additional equipment.
- **PID Temperature Control:** Ensures precise temperature regulation across the entire drying zone with ±1°C accuracy.
- **Air Inlet Filter:** Keeps the sample clean by filtering incoming air.
- **Adjustable Feed Pump:** Capable of handling as little as 50ml of sample, with precise control over feed rate.
- **Uniform Particle Size:** Over 95% of the dried powder falls within a narrow size range.
- **Tower Wall Purging System:** Increases material recovery and reduces loss during the drying process.
**Operating Instructions:**
- **Peristaltic Pump:** Click “Open†to start, then “Stop†to close. For automatic control, enable the auto mode, and the pump will adjust speed based on the outlet temperature.
- **Fan:** Use the fan button to start or stop the fan. The fan must be running before the heater can be activated.
- **Through Needle:** Controls the needle’s movement. Adjust the frequency using the numeric keypad.
- **Air Compressor:** Start or stop via the dedicated button. Essential for atomization.
- **Heater:** Only activates once the fan is running. Turn off the fan to automatically cut off the heater.
- **Settings:** Adjust fan speed, needle frequency, and peristaltic pump rate using the numeric input interface.
- **Control Panel:** Access different menus to manage the system and view operational status.
This user-friendly, high-performance spray dryer is perfect for researchers and professionals who require precision, reliability, and efficiency in small-scale drying applications. Whether you're working with pharmaceuticals, food ingredients, or chemical solutions, the Wuhai Small Spray Dryer offers a versatile and powerful solution for your lab needs.