Low-drying-loss quick freezing device and quick freezing method

Abstract

The invention discloses a low-drying-loss quick freezing device and a quick freezing method. The device is provided with a freezing channel and further comprises a conveying device for conveying to-be-frozen objects along the freezing channel. A rack is further provided with air coolers and an air supply device. The air coolers blow cold air to the to-be-frozen objects through the air supply device for freezing. The rack is further provided with a vertical partition plate, and the partition plate divides the freezing channel into a first freezing section and a second freezing section, and windfields of the two sections are isolated. The air supply speed of the first freezing section is smaller than that of the second freezing section. According to the low-drying-loss quick freezing deviceand the quick freezing method, the freezing process is divided into two stages including low-wind-speed freezing and high-wind-speed freezing, object surface freezing is achieved at the low-wind-speed stage, and accordingly, water is locked in the objects; and in the high-wind-speed freezing stage, the whole objects are completely frozen, dry losses in the quick freezing process are reduced, thefood quality is improved, meanwhile, the quick freezing efficiency is improved, and the resource is saved.

Description

technical field [0001] The invention relates to a quick-freezing device with low drying consumption and a quick-freezing method based on the device. Background technique [0002] With the acceleration of the pace of social life, quick-frozen food has become one of the fastest-growing food industries in the world today. In recent years, its trade volume has been increasing at an annual rate of 10% to 30%. Statistics show that the annual per capita consumption of frozen food in developed countries is generally more than 20 kilograms, and it is increasing at a rate of 30%. Quick-frozen food has become one of the fastest growing foods in the world today. At present, the world's total output of quick-frozen food exceeds 60 million tons, with about 3,500 varieties. my country's food industry has also entered a stage of diversified and high-speed development. Reducing production costs and developing new products have become the key points for every frozen food manufacturer to occ...

AI Technical Summary

Problems solved by technology

This makes it difficult for existing quick-freezing devices to make progress in reducing dry consumption: if the freezing speed is low, the freezing time will be long, dry consumption cannot be avoided, and the output is low; if the freezing speed is fast, there is also the problem of high food dry consumption , and waste resources

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