JDG Series vacuum freeze dryer 3 - TradeIndia Series vacuum...The freeze dryer is also facilitated...

Shanghai Pharmaceutical Machinery Co., Ltd.

Homepage: http://www.pharmach.com Email: [email protected]

JDG Series Food Freeze Dryer

Brief Introduction The JDG Series freeze dryer was first designed and manufactured in 1993. Now many types of equipment with various sizes have been developed. Up to now 100sets freeze dryer with 17thousand square meter charge volume have been or being installed in 40 production lines in 14 province of China. Most of the products from these production lines are exported and have made a deep impression to foreign traders. The JDG series keeps ahead in China on both the techniques and the market. The JDG series was listed in the Guide of Generalize of the Main Achievements on Sciences and Techniques of the State and The State Torch Program of 2001. A state certification of new manufacturers has been issued to JDG series of freeze dryer by 5 state and ministries. Our company went through the authentication ISO9001:2000 system.

The principle of freezing drying Water can be in solid, liquid and vapor state at different pressure and



temperature. The transition of water from liquid to vapor is called evaporation and the transition from solid state directly to vapor is called sublimation. The conditions for water sublimation are: pressure lower than 610 pa while below 0℃. For the water in food the conditions are a little different, due to the non-purity. One needs only to freeze the food primarily and then builds up a low pressure condition, the ICE in food can then be removed by sublimation and then food gets freeze dried. Easy for water recovery. freeze dried food regain water quickly and then becomes as good as fresh when it dipped into water, because a lot of micro holes are formed in the positions of the crystalline in the food during freeze drying.

Convenient for using. Because it is well prepared and can be quickly recovered with water. So the freeze dried food can be directly taken or cooked. The quality of freeze dried food The freeze dried food has several favorable characters in addition to easy storage for extended period and long distance transport. Keeping fresh and alimentation. During the freeze drying process the food is under the condition of low temperature and low pressure(lake of oxygen), which can prevent decomposed and oxidation of products, and can suppress the deleterious affects of animalcules and enzymes, therefore the fresh and alimentation of the food are preserved. Maintaining original shape and texture. During sublimation only the water in food, not the flavors was removed gradually from the surface and then the inner part, the food structures are not destroyed. The natural color and flavors, vitamins and nutritional contents are virtually remained. So the shape and color do not change with tasting as good as fresh.



Advantage of the JDG series freeze dryer Aiming at world-wild advanced level and considering the domestic situations, JDG series take the leading position in China by using new technology. There are no any mobile parts in the drying chamber and trap in order to avoid the troubles caused by the mobile parts. The application of the high-efficiency radiation heating makes the material to be heated uniformly. High efficiency trap is employed and it can easily melt the frost in the trap. The separation between water and oil can be carried out in the used high-speed vacuum pump unit. Parallel connection of the refrigerators with ammonia cryogen is used to centralize the refrigeration and supply the cold flow separately, which is favorable to protecting environment and saving energy. Employing industrial PC for control makes it to be real time, precise, convenient and reliable. Low energy cost, high efficiency capture and short period of moving of water and high quality of products. A lot of products have been exported to Japan, European countries and USA. Food can be freeze dried Almost all of the food containing water can be freeze dried, but the food containing much more sugar or pectin, or has a too low eutectic temperature is difficult to be freeze dried. The foods can be freeze dried as following: Vegetables: scallion, carrot, garlic, onion, ginger, capsicum, Chinese yam, spinach, cauliflower, green been, eatable mushroom and so on.



Fruits: apple, peach, pear, apricot, Chinese date, strawberry, banana, pineapple, cantaloupe and so on. Meat: beef, mutton, pork, chicken and so on. Aquatic products: fillet, shelled shrimp, crab meat, piece of ink fish, white bait and so on.. Convenient food: stuff for instant noodles, stuff for beef noodles, meat ball, soup stuff, food for pet and so on. Instant drink, coffee, milk, soybean milk, fruit juice, royal jelly and so on. Medicine: pilose antler, blood of deer, earthworm, scorpion, ground beetle, ginseng, Chuan Tangshen{Codonopsis pilosula}, angelica, rhubarb and so on..

Makeup of the freeze dryer The main part of the freeze dryer consists of a sublimation drying chamber and a deep freezing store room. The sublimation drying chamber is a horizontal tank which contains a number of heating plates and shelves. The vapor trap is positioned in the two inner sides or back end, or outside of the tank. The freeze dryer is also facilitated with systems of material transportation, vacuum, heating, freezing and control. A series of JDG were developed according to the position of the trap. They include inner-side set, inner-back-end set and outside set. After primary treating, the materials are transported to deep freeze store room or freezing, and then transported to drying chamber for sublimation. When sublimation is completed,



the materials are packed. The vacuum system supplies low pressure condition for sublimation. Heating system supplies the sublimation heat, while freeze system supplies cooling the trap. Technical Parameters:

Model JDG-20 JDG-50 JDG-100 JDG-200

The size of store hourse(M)

￠1.8×2.6 ￠2.4×4.8 ￠2.4×8.9 ￠2.4×16.6

Area to Store(m2)

20 50 100 200

Heating Temperature(℃)

Room temperature to 120 ℃

Shelf temperature

difference(℃) ±1℃

Condenser temperature(℃)

-60 ±5℃

Condenser water(kg)

250 550 1500 2500

Max. Vacuum for work（Pa）

2 5 10 15

Cooling water(25℃) Water Flow

(T/h)

20 50 100 200

Frost method Spray water Service

environment Temperature 5 ~30 ℃ ℃ Relative humidity＜75%

Total power 120 230 350 580 Equipment

installation area and

height(m2×m)

35×3 100×3 200×3 380×3

Optional items: Chamber material: Steel or stainless steel Shelf material: Duralumin (oxidized on anode) or stainless steel Deep refrigeration store: Special design of the number and temperature can



be required Vacuum system: The imported pump and valves can be selected Cooperation and service Main cooperative area: Supply of whole set of food freeze dryer and freeze drying techniques, the design of the production line, manufacture, installation and testing of equipments of their regular operation Write-up report of setting up projects and report of project feasibility Offer of the requirement to construct workshop: Layout of workshop and equipments, the bases of the equipments, the position for hoisting, the pipeline, the demands of electric power, vapor and water. Training of manpower(vestibular training) Offer the technical information of machine operating One year free service after the regular operation, and offer of services anytime as needed. Offer of help for the development of new kind of freeze dried food.

JDG Series vacuum freeze dryer 3 - TradeIndia Series vacuum...The freeze dryer is also facilitated...

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