Application of Vibro Sifter in Corn Starch

Corn starch is a white, slightly yellowish powder with strong hygroscopicity. It has a wide range of application scenarios in food, medical printing and other industries. Corn starch vibrating screen is one of the necessary equipment in the production process. It is determined by the preparation process of starch, and its existence is also of great benefit to improving the quality of corn starch. There are many methods for manufacturing and processing starch using corn as raw materials, but the basic production procedures are roughly the same, which can be summarized as: corn raw materials→cleaning→soaking→coarse crushing→separation of embryos→grinding→separating fiber→separating protein→cleaning→centrifugal separation → Drying and finishing → Starch finished product. In the entire corn starch production line, the food factory vibro sifter is mainly used in the two processes of "cleaning of raw materials" and "drying and finishing".

In the "cleaning" process, corn raw materials will contain various impurities during the harvest and threshing process. Since corn starch is mostly used in the food industry and the pharmaceutical industry, in order to ensure safe production and product quality, it is essential to select raw materials for impurity removal. important. According to the introduction of customers in the corn starch industry, the main players involved in the cleaning of corn raw materials are the specific gravity stone remover, permanent magnet drum, wheat washing machine and corn starch vibrating screen. The three have different roles in the raw material cleaning process. The first three are mainly used to remove stones, magnetic metals, and soil dust in the raw materials that are similar in size to the corn grains, while the vibro sifter is responsible for the cleaning of various large, medium and small debris from the corn kernels.

Due to the large size of corn grains and high fluidity, the impurities contained therein are easy to separate. It is generally appropriate to use linear vibrating screens for raw material removal and screening similar to low precision and high efficiency, which is also called corn grain removal vibrating screens. Linear vibrating screen is a typical particle screening equipment with higher screening efficiency among the vibrating screen models in food factories. The dual-motor drive screening is named because the material moves linearly on the screen surface and can be used to realize automated operations in the assembly line. It has the characteristics of low energy consumption, high efficiency, simple structure, easy maintenance, and a fully enclosed structure without dust spillage. The maximum sieving mesh is 400 meshes, which can screen out 7 kinds of materials with different particle sizes. When the vibrating screen removes the large, medium and small debris from the corn kernels, the setting of 3 layers and 4 outlets is generally selected. The first layer of screen is a circular hole with a diameter of 17-20 mm, and the second layer uses a circular hole with a diameter of 12-15 mm. The third layer uses 2 mm round holes to remove fine impurities.

At the end of the preparation of corn starch, after the dehydration process, we can obtain wet starch with still high moisture content. This wet starch can be used as a finished product. However, in order to facilitate transportation and drying, it is best to dry it. Starch is often very irregular in particle size and must be finished in order to become a finished starch. Finished product finishing usually includes two processes of sieving and crushing. The sieving process uses corn starch vibro sifter. The mesh size of corn starch vibro sifter is determined according to the granularity of the starch to be produced. Different application industries have different requirements for the particle size of corn starch.

The sieving mesh size of corn starch determines the level of sieving efficiency, the level of sieving accuracy, and the selection of sieving equipment. According to technical personnel of Dahan vibro sifter manufacturer, the selection of vibrating screen is largely determined by the requirement of screening mesh. The core gap of different types of vibro sifter is also mainly reflected in the difference in screening particle size. Therefore, understanding the mesh requirements of corn starch is very important for the correct selection of starch shaker. The application industries of corn starch are quite extensive, and different industries and applications have different requirements for corn starch mesh. The specific summary is as follows:

Food industry: important raw materials and food additives for making glucose, generally sieved 80 mesh, 100 mesh, 120 mesh;

Pharmaceutical industry: production of the main components of penicillin, streptomycin and other antibacterial culture media and additives for some flaky drugs, generally sieved 120 mesh;

Printed products: used for printing powder spraying, sieving 200 meshes with large ink volume and 300 meshes with small ink volume;

In summary, the sieving particle size of corn starch is between 80 mesh and 300 mesh, mainly the particle size separation of about 120 mesh, suitable for vibro sifter for grading and sieving. Vibro sifter is widely used in the field of powder screening, and it is also a favorite screening equipment for food factories. Vibro sifter is a high-precision fine powder screening machine with low noise and high efficiency. It takes 3-5 minutes to quickly change the screen. It has a fully enclosed structure and is suitable for screening and filtering particles, powder, mucus and other materials.

The above is an introduction to the application of corn starch in vibro sifter, I hope it can help you.