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The key to “sugar-free food†is sugar. It refers to foods that do not contain fructose, sucrose or maltose, which can be converted into glucose in the human body. These sugars can cause health problems such as high blood sugar, obesity and tooth decay. In order to ensure the taste, many "sugar-free foods" will be added with xylitol, erythritol, sorbitol and other sweeteners instead. These sugar substitutes not only have low calories, but also effectively control blood sugar levels. In their production process, centrifugal spray dryers are indispensable.
Spray drying is suitable for drying some liquid materials such as solutions, emulsions, suspensions, etc. into granular or powdery solids. The principle of making sugar substitutes is to atomize the sugar liquid in the drying chamber first, and when it is in contact with hot air, it is atomized. The water contained in the liquid will rapidly vaporize, and a solid sugar substitute can be obtained.
The structure of the centrifugal spray dryer is usually a tower shape, the raw material liquid enters the drying chamber from the top of the tower, and the centrifugal atomizer at the top of the tower atomizes the raw material liquid. The outside air is heated and filtered into the air distributor, and the hot air from the distributor enters the drying chamber in a spiral shape. The atomized raw material liquid can be dried to a solid in a short time after being contacted with hot air, and discharged from the bottom of the dryer.
The heat-receiving area of ​​the raw material liquid is greatly increased after atomization, so the drying speed of the centrifugal spray dryer is very fast, and the finished product* which is dried is uniform. Since the dryer is dried with pure hot air and does not touch other media, the purity of the product is also high. The centrifugal spray dryer is controlled by computer during operation. The debugging of production data is very flexible and convenient, and the operation is simple and convenient. Especially for raw materials with low moisture content, drying can be done at one time, which greatly improves production efficiency.
The emergence of a centrifugal spray dryer makes the production of sugar substitutes more convenient. However, there are some things to note when operating the device:
1. It is necessary to control the feed amount of the raw material liquid to prevent the liquid from evaporating due to the too large amount of feed, resulting in sticking.
2. Strictly control the solid content in the liquid to make the raw material liquid have better fluidity and ensure the atomization effect.
3. When the raw material liquid is dry, the temperature of the hot air should be controlled to prevent the water content of the finished product from being too high due to the low drying temperature.
4. Operators should always check whether the filter in the equipment is available, so as to avoid low purity and poor quality. In addition, the equipment should be cleaned frequently to keep the drying room clean and improve the purity of the product.
5. The coke powder at the hot air inlet should be treated in time to avoid mixing the coke powder into the product and reduce the product quality.
6. Check whether the cyclone separator is well sealed and the discharge port is blocked before operation, so as to avoid running powder.
Today, the application of spray drying technology in the field of production continues to expand. According to industry data, in 2017, the total market size of spray dryers has reached US$1 billion, and it has shown steady growth, and is expected to reach US$1.6 billion by the end of 2025. As a member of the spray drying equipment, the centrifugal spray dryer has a potential for market development.
Centrifugal spray dryers have been widely used in the pharmaceutical and food industries since their inception in the chemical industry, and their market share has been increasing. In addition, with the development of drying technology, centrifugal spray dryers are constantly being introduced, manufacturing costs are also falling, and the market competition for equipment has become more intense.
"Sugar-free food" is low in calories and does not raise blood sugar. It is a good choice for people with diabetes and weight loss. It is precisely because of the development of centrifugal spray drying technology that the “sugar-free food†around us will be more abundant. The centrifugal spray dryer makes the sugar making more efficient and the quality of the sugar substitute is improved.
"Sugar-free food" popular centrifugal spray dryer to help sugar production
“Sugar-free food†is a concept popular in the past two years. Sugar-free cola, sugar-free biscuits, and sugar-free yogurt are all popular products on the market. But is "sugar-free food" really sugar-free? In fact, many sugar-free foods will add sugar substitutes, and centrifugal spray dryers can be used when making sugar substitutes.