Shanghai Haozhuang Instrument Co., Ltd. teaches you how to choose a suitable experimental small spray dryer. The small spray dryer and its main application are in universities, research institutes, and laboratories of food, pharmaceutical, and chemical companies to produce trace particles, for all solutions such as emulsions. 〠The suspension has broad-spectrum applicability, suitable for drying heat-sensitive substances such as biological products, biological pesticides, enzyme preparations, etc., because the sprayed materials are only subject to high temperature when sprayed into mist-sized particles, so only Instant heat can keep these active materials from being damaged after drying.
Spray drying is a drying method that uses an atomizer to spray the material liquid into mist droplets and disperse it in hot air or inert gas to quickly evaporate the water content or organic solvent contained in the material liquid. This method can directly make the solution and emulsion When dried into powder or granular products, the processes of evaporation, concentration and crushing can be omitted, and the particles obtained are evenly distributed and have good fluidity. Spray drying has the characteristics of fast heat transfer, rapid evaporation of water, instant drying time, and good solubility of the dried materials. In addition, spray drying can also be used to prepare microcapsules.
According to the physical properties or chemical properties of different materials, as well as the size and solubility of the powder or granules required for the experiment, researchers may need a small spray dryer of an unsuitable type to obtain the most ideal experimental results. But how to choose a spray dryer suitable for your own scientific research or material drying requirements is a difficult problem for scientific researchers. When you choose small spray dryer equipment, you should consider the following factors:
1. The material has high sugar content (if juice, Chinese herbal medicine or natural product extract) or the material is not heat-resistant (heat-sensitive materials such as enzyme preparation live bacteria, etc.)
2. The material solvent is an organic solvent or the material is easy to be oxidized or toxic. 3. The material that needs to obtain large particle powder. 4. The material with very poor thermal sensitivity or the need to improve the solubility. Compounds, flavors and fragrances, food, western medicine, etc.
The small spray dryer produced and developed by Shanghai Haozhuang Instrument Co., Ltd. adopts imported nozzles with high efficiency. The color LCD touch screen parameters display: air inlet temperature / air outlet temperature / peristaltic pump speed / air volume / pass needle frequency. Fully automatic control: one-button start-up, after setting the spray process parameters, the temperature reaches the predetermined temperature, the peristaltic pump starts automatically, the operation animation is displayed on the touch screen, and the operation process is clearly displayed; just press the stop button during shutdown, 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 the manual state. The color touch screen dynamic display (animation) throughout the experiment and a nozzle cleaner (through needle) are also provided. When the nozzle is blocked , Will be automatically cleared, and the frequency of the needle can be adjusted automatically. Unique shutdown protection function: just press the stop button when shutting down, the machine will stop running immediately except for the fan, to ensure that the equipment will not burn out due to misoperation (forced shutdown of the fan). The spraying, drying and collecting systems are made of transparent high-quality borosilicate heat-resistant glass materials, so that the drying process is carried out in a non-polluting environment. Built-in imported oil-free air compressor, the particle diameter of the powder spray is normally distributed, the fluidity is very good, the noise is very low, less than 60db. The atomization structure of the two-fluid spray, the whole machine is made of high-quality stainless steel material, the design is compact, no additional equipment is required, the design of the dry temperature control adopts real-time control PID constant temperature control technology, so that the temperature control in the whole temperature zone is accurate, and the heating temperature control accuracy is ± 1 ℃. In order to keep the sample pure, it is equipped with air inlet filter. The feeding volume can be adjusted by feeding peristaltic pump, and the minimum sample volume can reach 50ml. The particle size of the dried powder after drying is relatively uniform, and more than 95% of the dry powder is in the same particle size range. For the viscous materials, there is a nozzle cleaner (through needle), which will be automatically cleared when the nozzle is blocked, the frequency of the needle can be adjusted automatically, the innovative tower wall blowing device, the material recovery rate is higher.
Shanghai Haozhuang Instrument has first-class scientific and technological talents, carefully build high-quality instruments for you, customers are welcome to buy!
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