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Application of mixing equipment in industrial production


Mixing equipment is widely used in industrial production. Especially in chemical industry, many chemical production is more or less using mixing operation. The chemical changes in chemical process are based on the full mixing of reactants. For heating, cooling, liquid extraction, gas absorption and other physical processes, it is often necessary to use the teaching plate operation in order to achieve good results. Mixing equipment is used as a reactor in many situations. For example, in the production of three major synthetic materials, mixing equipment as a reactor accounts for about 90% of the total number of reactors. Other industries such as dyes, pharmaceuticals, pesticides, paints and other industries, mixing equipment is also widely used. The non-ferrous Metallurgical Department has investigated and measured the mixing equipment in the national non-ferrous metallurgical industry. The result shows that more than 50% of the power consumption in many wet process workshops is used for mixing operation. The wide range of application of mixing equipment is also due to the wide range of controllable operating conditions (such as concentration, temperature, residence time, etc.) of mixing equipment, which can also be applied to diversified production.

The role of mixing equipment:

1, make the material mix evenly.

2, make the gas disperse well in the liquid phase.

3. The suspended particles are uniformly suspended in the liquid phase.

4, make another incompatible liquid uniformly suspended or fully emulsified.

5, strengthen the mass transfer between phases.

6, enhance heat transfer. For homogeneous reaction, the mixture is homogeneous. The speed of mixing, the degree of uniformity and the heat transfer will affect the result of the reaction. As for the heterogeneous system, it also affects the size of the interface and the mass transfer speed, the situation and more complex, so the change of mixing situation often affects the quality and output of the product very sensitively. This kind of example is very common in production. In the liquid phase polymerization reactor of solution polymerization and bulk polymerization, the main function of agitation is to promote the material flow in the reactor, make the material uniformly distributed in the reactor, and increase the mass and heat transfer coefficient. In polymerization process, the viscosity of polymer solution tends to increase with the increase of conversion rate. If the stirring condition is not good, the heat transfer coefficient will be reduced or local overheating will occur, the material and catalyst will be dispersed unevenly, which will affect the quality of the polymerization, and it will easily lead to polymer sticking to the wall, so that the operation of the polymerization reaction can not be carried out well.

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Fei Ke Electromechanical
Engineering (Shanghai) Co., Ltd.
Pudong New Area, Shanghai
5,786 Wang Qiao Road