Canned corn kernels have many admirers at home and abroad, and seasoning whole corn kernels in canned food can greatly reduce the cooking difficulty. Moreover, due to the canning production technology, most canned corn kernels can be preserved for a long time, which is suitable for long-term preservation. In foreign countries, the production history of canned corn kernels has been nearly a hundred years, while the current production history in China is short. However, with the improvement of raw material planting technology and processing equipment, the domestic canned corn industry has developed rapidly.
It is reported that the production process of canned corn kernels includes hulling, threshing, blanching, canning, sealing and sterilization. After the fresh corn enters the production line, the corn bracts are removed with a peeler first, and then the corn whiskers are removed with a second roller. After removing impurities, the corn kernels are separated from the corncob by a thresher, and the corn kernels are screened, and the unqualified corn kernels are separated by a screening device. Then, the corn kernels are washed and blanched by using washing and blanching equipment. After precooking, corn kernels, water, salt, sugar, etc. Putting into an iron can with filling equipment, sealing and sterilizing.
It can be seen that there are quite a lot of automatic equipment in the automatic production line of canned corn, including peeler, thresher, screening machine, cleaning machine, blanching machine, filling machine, can sealing machine, sterilizer and so on. The use of automation equipment makes the production process simpler and the production speed greatly improved. Moreover, automation equipment reduces the participation of labor in production, thus reducing labor costs.
For example, it is reported that a thresher can thresh 1.5 tons of corn per hour. Not only the yield is large, but also the threshing is uniform, which will not cause great damage to corn kernels. For example, faced with the filling of granular products such as corn kernels, automatic granule filling machines are often used. The equipment is suitable for filling products with different specifications, which will be liberated from the manual filling process, improve work efficiency and realize the assembly line filling of corn kernels.
Sealing machine and sterilization machine are the key equipment to ensure the shelf life of products. At present, automatic can sealing machines have appeared in the market. It is reported that the production speed of automatic can sealing machine is generally 50~200 cans/minute, and the production speed is very fast. The equipment has advanced automatic sealing function, which overcomes the shortcomings of manual sealing and improves the automation of production. The automatic can sealing machine has stable operation and high sealing quality, and can flexibly adjust the production speed according to the output.
When canned food is sterilized, a high-temperature sterilizer is often used. With the development of technology, there are many sterilization methods of high temperature sterilizer, including hot water circulation sterilization, steam sterilization, water spray sterilization, steam mixed sterilization and so on. In order to achieve the purpose of sterilization, the sterilization temperature in the high-temperature sterilization pot is generally high, which can kill the microorganisms inside and greatly extend the shelf life of canned food. A temperature sensor is installed inside the equipment, which can collect and record the sterilization temperature in the pot, which is convenient for operators to control the temperature in time.
In recent years, meals made of corn kernels have become more and more popular with consumers, which makes canned corn kernels very popular in both the catering industry and the terminal consumer market. At the same time, the development of thresher, filling machine, can sealing machine, sterilizer and other equipment also makes production more automatic and product quality improved.