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Spray Dryer for Chinese Traditional Medicine Extract

, GZ-L Series

General Descriptions:
The machine adopts full seal from.All parts are made of stainless steel.It is equipped with three grades of filter.The filtered air is one hundred thousand grades.The cooling device of wall is installed at the cylinder body.It makes the wall temperature less than 80℃。Air sweeping device is installed inside the drying tower. The product will not be burnt or deteriorated even stays on the way.The collection rate of powder is raised greatly.Moreover will not cause medicine mixed or wall sticking.

Basic Principle:
high-speed centrifuge atomizing for the extract of traditional Chinese medicine is an application of centrifuge atomizing technique.It is an high-speed atomizing dryer.
The following problems are solved.
1.Raw material is stick to the wall and the rate of powder collecting is low.
2.Because the staying time of raw material at wall is long,the phenomenon of burnt and degenration can be produced.
3.It is difficult to clean and can not meet the requirement of GMP .
4.Low in output:Model GZ-L-150 atomizing centrifuge dryer can process 50-60kg/h of raw material liquid.In view of this,according to the properties and process requirements of the extract of traditional Chinese medicine,our factory researched and designed the special dryer for the extract of traditional Chinese medicine and won items of china patent.It solves the historical difficult problems in drying the extract of traditional Chinese medicine.The color of dried raw material is good.The dried raw material does not degenerate.It raises the economic benefit greatly.

Compared to ordinary GZ-S high-speed atomizing dryer,it has the following features:
(1).Adopted three-grade air filter,the inlet air is one hundred thousand grade.
(2).Adopted wall cooling device,the temperature of inner wall will be on more than 80℃.Even if raw material is stayed on the wall,it will not be burnt.
(3).Its whole volume is 3.5 times of standard GZ-S high-speed atomizing dryer.
(4).Adopted quick washing device,it is can meet the requirements of production for varieties if products.
(5).Adopted wet-dedusting,there is no powder dust out.It is in conformity with the requirements of GMP.
(6).Adopted air sweeping device ,the clean effect is satisfied.
(7).Equipped with two sets of atomizer and adopted frequency inverter control.
(8).Adopted PLC control and display,and adapted frequency control.
(9).Equipped with washing device on request.
(10).Adopted the seal transport by dry air on request.
(11) The material-conditioning system adopts a unique way of freezing dehumidification, and effectively solves the phenomenon of agglomeration, softening and moisture absorption of the product;
(12) The elbow from main tower of the drying tower to the cyclone separator is made of a 304 once- formed stainless steel pipe , which prevents the phenomenon of the material-binding, and is convenient for cleaning the sewage when the clamp is quickly opened;
(13)The plant adopts PLC to control system loops; touch screen display process by animation with maneuverability; Variable operating parameters realizes automatic tracking and adjusting of Fuzzy Technology; atomizer is stably regulated by inverter; power regulator controls the air intake temperature with the accuracy up to positive and negative 2, reducing energy consumption maximumly. The inlet air temperature, outlet air temperature, temperature inside the tower and pressure inside the tower can all be set precisely etc..
This series of spraydryer is particularly suitable for Chinese Traditional Medicine field. It is suitable for heat-sensitive product, like various plant extracts and etc.

Technical Parameters:
spec GZ-L-25 GZ-L-50 GZ-L--80 GZ-L-100 GZ-L--150 GZ-L--200 GZ-L--300
evaporation capacity(kg/h) 25 50 80 100 150 200 300
process amount of material liquid(kg/h) 25-34 50-68 80-108 100-135 150-203 200-270 300-406
output of finished product(kg/h) 4.8-7.2 9.2-14 14.8-22.4 18.4-28 28-42 36.8-56.4 55-85
solid content of material liquid(%) 18-25
moisture content of finished product(%) 3-5
electric powder(kw) 63 99 132 153 204 246 330
heat source steam plus electricity
collecting method of product and its efficiency two-grade cyclone or one-grade cyclone and one-grade web-method dedusted of 95%
automatic control meters and instruments indicator of not air and exhaust air temperature
temperature of air inlet(℃) 150-200
temperature of air outlet(℃) 80-100
overall dimensions(mm) L 7000 8000 9800 11000 12200 14100 15000
W 4000 5000 5700 6200 7000 7800 9000
H 6900 7400 8000 8900 10000 11000 12000

Attentions before Order:
Liquid name and property:solid contents(or water contents),viscosity,surface tension and PH value;
Dry powder density residual water contents allowed,particle size,and maximum temperature allowed.
Output: shift time daily;
Energy that can be available at user’s site: steam pressure, electricity properly,fuel of coal,oil and natural gas;
Control requirement: whether or not the inlet and outlet temperatures should be controlled. Whether the whole control system should be fully automatic or semi-automatic;
Powder collection requirement: whether it's necessary to use cloth bag filter and the requirement of the environment of the exhausted gas.
Other special requirements.

Flow chart of spray dyrer for extract Flowchart
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