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Drying solution of Chinese herbal medicines

2016/9/1 13:57:20

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Introduction
Problems in traditional Chinese medicinal materials drying process
Sun drying:
1 covers an area of large, need a lot of Shaichang can meet mass production;
2 labor intensity is high, need to be turned over frequently in strong ultraviolet light, more and more workers are no longer willing to engage in this post;
3 poor health conditions, can not put an end to the breeding of flies, some poor processing workshops by spraying insecticide to reduce pests, food safety is not guaranteed;
4 temperature and humidity is difficult to control, can not guarantee the quality of the product uniformity, color and quality;
5 with the increase in labor costs do, the cost of drying has become increasingly high, some varieties of far more than the cost of mechanical drying.



Firewood coal and soil baking room:
1 air pollution is serious, does not meet the requirements of the national environmental protection, the government has ordered the rectification;
There are 2 fire safety hazards, fire hazards for drying system in ways other than high ten times, the annual soil barn fire accident is now slowly out of It is often seen.;
3 inferior product quality, because of the serious air pollution, the product in the process of drying harmful substances will be kept into, sulfur exceeded, food safety is not guaranteed;
4 temperature and humidity is difficult to control, can not guarantee the quality of the product uniformity, color and quality.



Conventional drying equipment:
1 hot air drying equipment, the Chinese herbal medicine, the majority of Chinese herbal medicine drying temperature can not be more than 60 degrees Celsius, the temperature is too high drying out of the product quality can not meet the requirements of the market;
2 air dehumidification equipment, currently consists of many equipment manufacturers will air dehumidification equipment used for drying material, usually above 60%RH dehumidification machine can normal dehumidification, then when the relative humidity is below 60%, the dehumidifying effect will be worse, so common dehumidifier can not meet the requirements;
3 freeze drying equipment, equipment of the huge capital investment and operation cost is very high, the Chinese herbal medicine processing enterprises, high processing cost means reducing the market competitive advantage.



West original drying process:
(1) energy saving operation cost is low
Energy saving is the starting point of the application of Chinese herbal medicine drying machine, and it is also the main advantage. The efficiency of traditional dryer is only 30% ~ 50%, and for the traditional Chinese medicine drying machine drying in the drying and absorption humidity in the process of hot air and the surrounding air in the heat, greatly improve the energy efficiency and energy efficiency can reach 150 ~ 250%, the ratio of 50% energy saving electric heating and drying of the cost is greatly reduced the company operating costs.
(2) good drying quality, beautiful appearance
Chinese herbal medicine barn is a dry soft, close to natural drying, the surface water evaporation rate and internal moisture transfer to the surface velocity is close to that of the dry goods of good quality, good color, high grade product. The common drying method was used to obtain the low retention and poor heat tolerance of the aromatic volatiles. Chinese herbal medicine can keep the original color, flavor and nutritional components of traditional Chinese medicine.
(3) the drying parameters are easy to control and can adjust the width of the range.
Chinese herbal medicine barn in the process of drying, temperature, humidity and air circulation flow can be controlled accurately and effectively, and the temperature regulating range of room temperature to 85 DEG C, relative humidity adjusting range is 15% ~ 85%, and many varieties, many kinds of different drying products.
(4) environmental friendly non pollution
Material drying is not only required to improve product quality and save energy consumption, but also must be environmentally friendly. Based on the same evaluation criteria, the influence of the Chinese herbal medicine baking room on the global warming is very small compared with that of the CO2. No harmful substances are produced during the drying process. Friendly to the environment is the advantage of heat pump drying. At present, abroad to promote the application of heat pump to reduce the emissions of CO2, it will be further applied.
(5) there is no security risk of green environmental protection
Chinese herbal medicine barn operation process without three wastes (waste water, waste gas and waste residue), no pollution to the environment, green environmental protection. The use of alternative heating boiler, reduce the harmful gas and fuel boiler caused by coal-fired emissions, improve the quality of atmospheric environment, make full use of renewable resources and energy saving of conventional high quality, more conducive to the sustainable development of the society, and has good economic and social benefits, its market prospects.


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