Laboratory closed organic solvent spray dryer

Laboratory closed organic solvent spray dryerworking principle

YC-018A spray dryer adopts menu type micro processing controller (7-inch touch screen), which can directly set the inlet temperature, air flow, automatic needle passing frequency and pump speed to realize data acquisition, process monitoring and control. The self-priming peristaltic pump enters the drying chamber from the container through the nozzle, and the compressed nitrogen enters the drying chamber from the outer casing to make the liquid particles. The heated nitrogen enters the drying chamber from the upper layer and meets the liquid particles after spray, and the articles begin to dry. The dried powder particles are separated from the exhaust gas through the rotary air separator and enter the collection bottle. The air flow containing organic steam is cooled down in the heat exchanger, and then the solvent is condensed and recovered in the refrigeration device. The clean nitrogen enters the next cycle.

Scope of Application

YC-018A spray dryer is mainly suitable for universities, research institutes and laboratories of food, medicine and chemical enterprises to produce micro particle powders, and is suitable for aqueous solutions and most organic solutions,? Because the lowest inlet temperature of aqueous solution is 105 ° C, and the lowest temperature of organic solvents can reach 60 ° C depending on their boiling point, it is suitable for drying thermosensitive materials such as biological products, biopesticides, enzyme preparations, etc.

Main Features

1) It can solve the problem of difficult drying of materials containing organic solvents in spray drying. Generally, organic solvents are flammable and explosive. The explosion-proof closed laboratory spray dryer enables materials to circulate in a closed drying system, which can avoid the contact between organic solvent gas and external oxygen air and ensure safe production;

2) This technology can solve the problem of difficult drying of easily oxidizable materials in raw material production. It utilizes the antioxidant properties of inert gases to dry and transport materials in a closed-loop system with antioxidant properties, serving the purpose of isolating them from oxygen and ensuring the quality of easily oxidizable material drying production;

3) It can solve the problem of toxic gas pollution in the production of some raw materials. Some materials or organic solvents will produce toxic gas during gasification. The spray dryer in the inert gas closed cycle laboratory will seal these toxic gases in the system and collect them in the next process, which can reduce environmental pollution and is conducive to environmental protection.

4) Easy to operate: The control system adopts PLC automatic control, one click startup, color touch screen operation. During the experiment, experimental parameters such as feed rate, inlet air temperature, air volume, needle frequency, etc. can be changed in real time according to experimental needs, making it convenient for users to use;

5) Stable operation: The core components of the equipment, such as the touch screen, fan, heater, and control system, are all imported equipment, ensuring the stability and reliability of the equipment operation;

6) Convenient material preparation: The minimum requirement for materials is only 20-30 ml, which is conducive to the processing and preparation of small samples. However, the maximum processing capacity can reach 1500 ml/H, and the processing of large amounts of materials is also extremely fast;

7) Adopt concentric spray head: during the experiment, the atomization is absolutely not eccentric, and it will not affect the recovery rate when spraying to the bottle wall when spray. The spray head can move up and down to change the atomization position, so as to improve the drying effect of spray;

8) Temperature protection: When the experiment ends, the heater temperature*High, the fan needs to continue to work to reduce the internal temperature to ensure the safety of the equipment. YC-015A organic solvent spray dryer program can automatically control the fan operation. Even if the operator makes mistakes, the fan cannot be turned off. The fan will not automatically stop until the system temperature drops to the default safe state of the system;

9) Durable fan: The wind is blown out by the positive pressure of the fan in the same direction as the material, and all materials do not come into contact with the fan. The fan will not be contaminated and is durable. The fan is made of corrosion-resistant materials to ensure that it will not be corroded by organic solvent vapors;

Laboratory closed organic solvent spray dryerTechnical Specifications

1) Color touch screen operation control, fully Chinese operation interface

2) Feed quantity: maximum 3000mL/H

3) Color touch screen parameter display: inlet temperature/outlet temperature/peristaltic pump speed (controlling material flow)/oxygen concentration

4) The spray head is a concentric spray head. During atomization, ensure that there is no eccentricity that causes the spray to one side of the bottle wall. The spray head can move up and down after installation to facilitate the adjustment of the atomization position and improve the drying effect of spray;

5) The entire system is in a closed state, with online monitoring of oxygen concentration. Once the oxygen concentration in the system reaches 2.5%, the system will automatically shut down and sound an alarm.

6) Nozzle diameter: 0.7mm 1mm 1.5mm 2mm optional, and can be customized according to customer requirements, suitable for various materials and different powder particle size requirements

7) Inlet air temperature control: 60 ℃~280 ℃

8) Timely regulation of PID constant temperature control technology, heating and temperature control accuracy: ± 2 ℃

9) Nitrogen containing circulation system and solvent online recovery system

10) Optional low-temperature cooling circulation pump for low boiling organic solutions