1. General description
 Chinese herbal  medicine extract is refined from root, stem and leaves of plants, and contains  high sugar especially from alcoholization process, which is easy melted at high  temperature. Normal centrifugal spraying can not meet its drying requirements.  For that reason, our company organized a group of technicians to develop such a  dryer especially used for Chinese herbal medicine extract after repeated  calculations and countless tests on the basis of our experience to make  spraying dryer and collect advantages of same kind of dryers from both domestic  and abroad. And the equipment is widely used in many famous pharmaceutical  factories.

2. Features of the equipment
 1. The diameter and height of the tower have be modified to ensure that powder  cannot reach at the wall of the tower before drying, and ensure that powder  will have enough dwelling time in hot air to complete low-temperature drying.  The wall of the tower has sandwich cooling device to ensure liquid materials  not to be softened, melt or coked when they are stuck on the wall that has  partial high-temperature. There is air shocker on the cone body which has  larger taper and can pulsate the tube by compressed air to shake down powder  which is stuck on the tube. 
 2. All contact places inside the dryer have plain or round surface, and are  ground and polished(fine polish over 10) to avoid sand hole and dead angle etc.  The contact surface is made of stainless steel to ensure materials free of  pollution. The driving parts have good sealing to prevent water and oil.  Material discharge is done by sealed butterfly valve to avoid air leaking.  Discharge pipes are connected flexibly for easy dismantling in order.
 3. Three-stage air  filters are used on air pre-treatment system and air can be purified up to 100  thousand level  
 4. Discharging  system adopts advanced freezing dehumidifying system, it solves the problems of  blocking, soften and moisture absorption.
 5. The pipe from  main tower to cyclone separator is made of SUS304/316L, it is once-molded smooth stainless steel pipe,  so there is no powder packed there. And it adopts quick-open type, it’s easy to  discharge sewage when cleaning.
 6. PLC Program control system circuit is used and cartoons of touch screen  display technological process. Variable data carries out automatic trace and  regulation by fuzzy technique, the atomizer is adjusted stably by inverter,  temperature of inlet air is adjusted by the power-regulator, precision can  teach plus and minus two so as to largely reduce energy consumption. Inlet and  outlet temperature as well as inside the tower can be set up precisely.

Contact Information Changzhou YOYI Machinery Co.,Ltd
Address：No.9 Changyang Road, West Tai Lake Sci-tech Industrial Park, Wujin District, Changzhou City, Jiangsu Province, China
Mobile：+86-18112878937(Manager shi)  
Tel：+86-519-88968055
Fax：+86-519-88968686
E-mail：yoyimachinery@sina.com
Website：www.chinayoyi.com