Shandong Haoweiyuan Foodstuffs Pty Ltd  

  English

|

日本語の

Tel:+86-539-8739121

Tel:Contact
+86-539-8739121
Mobile:
+86-539-8739121
Add:
Baihu Town, Hedong District, Linyi City, Shandong Province, China
 
Industry news
 

Source:Shandong Haoweiyuan Foodstuffs Pty Ltd Date:2017-8-12
Prompt:First, vacuum drying Vacuum drying: the material to be dried in a closed drying room, the use of vacuum system, while in the vacuum, the dry material is heated, so that the material within the moisture spread to the surface, after obtaining enough power to overcome The gravitational pull between the molecules, fled to the vacuum chamber of the low-pressure space, which was vacuum pump away, so the material was dry.
First, vacuum drying
Vacuum drying: the material to be dried in a closed drying room, the use of vacuum system, while in the vacuum, the dry material is heated, so that the material within the moisture spread to the surface, after obtaining enough power to overcome The gravitational pull between the molecules, fled to the vacuum chamber of the low-pressure space, which was vacuum pump away, so the material was dry.
In the process of vacuum drying, the pressure inside the drying chamber is lower than the atmospheric pressure, the gas molecules are small, and the density is low, so it can dry and easily oxidize the deterioration of the material, the drugs and food can play a certain disinfection and sterilization, thus Inhibit the growth of certain bacteria.
Water in the gasification process, the temperature and the vapor pressure is proportional, therefore, in the vacuum drying, the material in the water at low temperatures can be gasified to achieve low temperature drying, for some heat-sensitive materials particularly favorable.
Vacuum drying can also eliminate the phenomenon of surface hardening under normal pressure drying conditions. Under vacuum drying conditions, the pressure difference between the material and the surface is large, so under the action of pressure gradient, the water will move to the surface, There is a phenomenon of surface hardening, at the same time, can improve the drying rate, shorten the drying time, reduce operating costs. In addition, vacuum drying can overcome the solute dispersion phenomenon. Vacuum drying, some of the dry material containing substances or water, can be recycled after use, but also can recover harmful substances, so that vacuum drying has become "green dry."
Vacuum drying In addition to these advantages, by controlling the drying temperature and vacuum, the product through the expansion of foam, can produce crisp, instant food and other food.
Second, vacuum freeze-drying
Before the vacuum, the material is pre-frozen to the eutectic temperature of the material below, until the material is completely frozen, and then vacuum drying. According to its description, it can be seen, vacuum freeze drying in addition to the advantages of vacuum drying, there are the following advantages:
1, to maintain the nutritional content of the material, the shape can remain basically unchanged;
2, freeze-dried material moisture content can reach a very low level, to facilitate long-term storage, long-distance transport.
 
Home | About Us | Product Range | News & Market Intel | Factory View | Message | Contact Us |
 
About Us
About Us
company culture
Contact us
Products
Product Range
Message
Submit problem
Customer response
News
Market Intel
products information
Industry news
Photo
Factory View
 
Shandong Haoweiyuan Foodstuffs Pty Ltd. All right reserved
Tel: + 86-539-8739121
Address: Bahu Town, Hedong District, Linyi City, Shandong Province, China 临沂网站建设