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Spray dryers are favored by the market. Drying companies should intensify innovation

From:JiangSu TAYACN Drying Technology Co.,Ltd.  Time:2018/5/29 16:20:31  Hits:
Keywords: spray dryer, drying enterprise, drying equipment

            In recent years, drying technology has attracted much attention in the food and other industries. The quality of the drying equipment affects the shelf life and safety of the item. According to relevant statistics, there are currently as many as 500 or 600 drying technologies involved in various drying research reports, and there are more than 100 kinds of practical applications. In China, there are about 400 manufacturers of drying equipment, and companies Still increasing.

      Among them, the spray dryer is a drying device for biological pesticides, medicines, and food microorganisms. Spray- dryer in the process of shaping and drying the liquid widely used in industry, suitable for producing powder, granular or solid products from bulk solutions, emulsions, suspensions and plasticity of paste liquid. Therefore, spray drying is a good process when the particle size distribution, residual moisture content, bulk density, and particle shape of the finished product must meet the corresponding criteria. 
           It is understood that the spray drying tower is compact in design and does not require ancillary equipment. For sticky materials, there is a nozzle cleaner (through pin). When the nozzle is blocked, it will be automatically cleared and the frequency of the pin can be adjusted automatically. The active material remains its active ingredient after drying. Most of the drying failures of the spray dryer are caused by the adjustment of the air flow rate or the air pressure of the intake/exhaust fan. Generally, the exhaust air volume is low and the air pressure is low. As a result, the negative pressure of the drying tower is too low. Excessive air temperature results in increased water content of the product. Reasonably adjusting the intake and exhaust fans can effectively improve the drying efficiency and reduce the production energy consumption. Common spray drying equipment receiving devices mainly include bag filter and cyclone separator. The two receiving devices need to correspond to different fan settings. 
     The spray dryer has good uniformity, fluidity and solubility, high product purity, good quality, simplified production process, convenient operation and control, high-speed centrifugal atomizer on the top of the tower body, (rotary) spray is very fine The bead of the mist, in contact with the hot air in parallel, can be dried into a finished product in a very short period of time. Special equipment sprays the liquid material into a mist to make it dry in contact with hot air. The spray dryer air is filtered and heated to enter the air distributor at the top of the dryer. The hot air spirally enters the drying chamber. In the hot air stream, 95% to 98% of the water can be evaporated instantaneously, completing the drying time only. It takes a few seconds and is particularly suitable for the drying of heat-sensitive materials.    
     In addition, spray dryers can also improve the dissolution rate of certain formulations. The spray dryer can instantaneously dry at low temperature, and the activity of the material is completely unaffected. It is a small-scale spray dryer for laboratory organic solvents with good safety and easy operation. It can be used in combination with nitrogen-enclosed circulation and solvent recovery. Solvents that are flammable, toxic, and can be dried by easily oxidizing materials. The spray drying tower is suitable for the production of powdery, granular solid products from solutions, emulsions, suspensions and pasty liquid raw materials. The drying speed is fast, the surface area of the feed liquid after atomization is greatly increased, and in the hot air flow, it can be instantly evaporated. 95%-98% of the water, only a few seconds to complete the drying time, especially for heat-sensitive materials drying.     
     As the spray dryer dries quickly, the effect is good, and the scope of application is also widening. More and more pharmaceutical machine companies in the market are increasing their R    &D and innovation of spray drying tower equipment and creating drying equipment in related fields. With the improvement of people's production level and the expansion of market demand. In the future, equipment manufacturers of dry spray dryers need to make more efforts in energy saving, environmental protection, and product innovation, eliminate the homogenization of products currently common in the market, strive to break through the development bottleneck, and promote the drying equipment industry to a new level.


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