The homogenizer is a device used to homogenize and emulsify liquid materials (liquid-liquid phase or liquid-solid phase) with a viscosity lower than 0.2 Pa.s and a temperature lower than 80°C. .Mainly used in the food or chemical industry, such as: homogenization and emulsification processes in the production process of dairy products, beverages, cosmetics, pharmaceuticals and other products.

Application of homogenizer in food processing: Homogenizer in food processing refers to refining the material liquid under the triple action of extrusion, strong impact and pressure loss expansion. This allows the materials to be mixed with each other more evenly. For example, a homogenizer is used in dairy product processing to break the fat in the milk into smaller pieces, making the entire product system more stable. The milk will look whiter. Homogenization is mainly carried out through a homogenizer. It is an important processing equipment in the food, dairy and beverage industries.

The working principle of the homogenizer:

The rotor and stator are precisely matched, the working head (made of rotor and stator forgings) claw structure, two-way suction, and high shearing efficiency.

The intermittent high-shear dispersing emulsifying homogenizer uses the high-speed and smooth rotation of the rotor to form high-frequency, strong circumferential tangential velocity, angular velocity and other comprehensive kinetic energy

Efficiency; Under the action of the stator, strong and reciprocating hydraulic shear, friction, centrifugal extrusion, liquid flow collision and other comprehensive effects are formed in the reasonably narrow gap between the stator and the rotor. The material circulates in the container through the above working process, and finally the product is obtained .

Features of the homogenizer:

·Stable operation, low noise, easy cleaning, flexible maneuverability, continuous use, and ultra-fine dispersion and emulsification of materials. It can be widely used in emulsification, homogenization and dispersion of industrial production.

·It can refine and mix the material liquid under the triple action of extrusion, strong impact and pressure loss expansion. This equipment is an important equipment for food, dairy, beverage and other industries.

·Homogenizing various dairy beverages such as milk and soy milk under high pressure can significantly refine the fat globules in the dairy liquid, making the products easier to digest and absorb after consumption, and increasing the use value.

·Used in the production of ice cream and other products, it can improve the fineness and looseness of the liquid, and significantly improve its inherent texture.

·Used in the production of emulsions, glues, juices, slurries, etc., it can prevent or reduce the stratification of the material liquid, improve the appearance of the material liquid, and make the color more vivid and fragrant. Thicker and mellower in taste.

Application industries of homogenizer

Used in biomedicine; food industry; daily care products; coatings and inks; nanomaterials; petrochemical industry; printing and dyeing auxiliaries; paper industry; pesticides Fertilizers; plastics and rubber; power electronics; other fine chemical industries.

Application of homogenizer in soy milk: During homogenization, soy milk is pressed out from the slit of the homogenization valve under high pressure. Particles such as fat globules and proteins are miniaturized under the simultaneous action of shear force, impact force and cavitation effect. Form a uniform dispersion. Prevent fat from floating and protein from settling, increase the gloss of soy milk and improve the stability of soy milk.

The homogenization effect of soy milk is affected by homogenization pressure. Three factors influence the homogenization temperature and the number of homogenization times. The homogenization pressure is limited by the equipment. In soy milk production, 20~30MPa pressure can be used for homogenization. During homogenization, it is generally suitable to control the temperature between 55 and 65°C. The number of homogenization times is 1 to 2 times.

The homogenization process can be placed before soy milk sterilization. It can also be placed after sterilization. Both arrangements have their own pros and cons. If homogenization is placed before sterilization, the sterilization process can destroy the homogenization effect to some extent. Soy milk is prone to oil lines. However, using this process reduces the chance of contamination after sterilization. Storage security is higher. Equipment costs are relatively low. And the homogenized soy milk is less likely to scale when it enters the sterilizer. If homogenization is placed after sterilization, the above situation is just the opposite.

The application of homogenizer in raw milk: under the strong mechanical action of 16.7~20.6MPa, the large fat globules in the milk are broken into small fat globules. Disperse it evenly in the milk. It can effectively prevent fat globules from floating up. In the production of pasteurized milk. Generally, the homogenizer is located in the first heat recovery section of sterilization. In the production of indirectly heated UHT milk, the homogenizer is located before sterilization. In direct heated UHT milk production. The homogenizer is located after sterilization. Therefore a sterile homogenizer should be used. Homogenization not only prevents fat globules from floating, but also has other advantages: the diameter of homogenized milk fat globules is reduced and is easily digested and absorbed by the human body.

Homogenization softens the milk protein curds. Promote digestion and absorption. In the production of enzymatic cheese, homogenization can speed up the coagulation of milk and make the flavor of dairy products more consistent.

Preheating is required before homogenization. To reach 60~65℃, the homogenization method generally adopts a two-stage method, that is, the first stage of homogenization uses higher pressure (16.7~20.6MPa), with the purpose of breaking the fat globules, and the second stage of homogenization uses low pressure (3.4~4.9 MPa), the purpose is to disperse the broken small fat globules and prevent adhesion.

Application of homogenizer in citrus juice: After centrifugal separation of citrus juice, the pulp particles are quite homogenized. To further refine the particles. After centrifugation, a homogenizer can be used to homogenize with a pressure of 20~35MPa.

Application of homogenizer in flat peach pulp juice beverage: using 25~35MPa homogenization pressure. It enhances the affinity between pectin and juice, improves the stability of juice, reduces the size and density difference between particles, prevents slurry from layering and settling, and makes the tissue evenly viscous and has a delicate taste.

How to choose:

1. Minimum trial quantity: the smaller, the better, which can save materials. At present, the raw materials of some pharmaceuticals cost several thousand yuan/gram. Of course, users hope to complete a homogeneous experiment with the least amount of materials. Moreover, the experiment is a repeated process. The larger the minimum sample size, the more materials are wasted.

2. Homogeneous pressure: It is not that the higher the pressure, the better. For general materials, first of all: in a sense, the higher the pressure, the smaller the particle size of the material can be processed; secondly, the higher the pressure, the more types of materials can be processed, for example, certain liquids Emulsions only need to be homogenized to below 100nm at 15,000 psi, while some drugs and foods, especially suspensions with a certain amount of solid particles in the liquid, require a pressure of at least 26,000 psi to achieve nanometer level. However, it is not ruled out that some materials may agglomerate under high pressure.

3. Processing effect: Of course, users hope that the materials produced can reach the nanoscale level, and the nanoscale distribution is very uniform at the same time, instead of some particles having dozens of particles. A few nanometers, and some are still on the micron level.

In order to solve this problem, it is recommended that users when purchasing a homogenizer, ask the manufacturer to equip it with a nano-scale filter extruder device, preferably an online extruder, as offline extrusion is very troublesome.

4. Cleaning and sterilization: The imported high-pressure homogenizer is very convenient for cleaning and sterilization. It is recommended to consider one that can be cleaned and sterilized online.

5. Don’t consider the noise, safety, and number of users of a piece of equipment in China. From the user list, you can determine whether a device is popular. The more well-known users, the better the quality of the device.

6. Homogenizer manufacturers generally say that their equipment is very good. It is recommended that they first provide a list of users, and secondly, ask them to provide relevant results, papers, etc.

Through the above-mentioned inspections, you can compare various aspects of high-pressure homogenizer equipment, so you can decide which equipment you need most.