High-purification automatic impurity-removing and tea-sterilizing process

Abstract

The invention discloses a high-purification automatic impurity-removing and tea-sterilizing process comprising the following steps: charging, fine processing, weighting and packaging. In the fine-processing step, tea is primarily screened by adopting a winnowing mode and residual impurities in the tea are removed by using a manual-selection mode; aroma-extracting and sterilizing working procedures are set after the manual-selection step: tea moisture is removed, tea aroma is improved and bacteria in the tea are killed; far infrared rays are adopted to bake and heat the tea so as to greatly improve the tea quality; meanwhile, the far infrared rays have the thermal effect and the biological effect, and keep the activity of the tea and the nutrition and the luster of food to a maximum extent; and the automatic processing degree is high. The invention has the advantages of intelligently controlled technological process, compact connection, strong continuity, effectively controlled secondary pollution, little manpower consumption and high tea-making efficiency.

Description

Technical field [0001] The invention relates to a processing technology of agricultural products, in particular to a high-purification, automatic, and sterilization technology for tea. Background technique [0002] As the hometown of tea, China has a history of making tea and drinking tea for thousands of years. Tea tasting and hospitality are elegant entertainment and social activities for Chinese individuals. After entering the 21st century, people’s demand for purely natural, non-polluting beverages is steadily increasing. In the tea industry, tea bags and deep processing of tea will become new economic growth points for the tea industry, and the development of tea beverages is also very strong. Quickly; In addition to people directly consuming tea, tea has also indirectly entered our lives. Therefore, the issue of tea hygiene, quality and safety has become one of the main problems facing the development of my country's tea industry in the new century. [0003] As a national tra...

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Problems solved by technology

[0003] As a national traditional production industry, the existing tea processing technology has many shortcomings: First, most tea factories in my country have outdated processing equipment, poor processing environmental sanitation conditions, and hidden dangers of harmful microorganisms and heavy metal pollution. Second, there is a huge gap between the content of non-tea inclusions in tea and the increasing demand for hygienic quality in the international tea market

The content of non-tea inclusions in tea directly reflects the processing technology level and hygienic status of the production enterprise, and directly affects the increase of added value of tea. However, the current domestic production line only guarantees the complete process from raw materials to bagging and packaging. The process is "no ground, no dust", and there is no in-depth research on the removal of non-tea inclusions in tea. At present, most of the domestic loose tea is processed as general agricultural and sideline products, and the non-tea inclusions are relatively high, mostly at 0.7% In general, the non-tea inclusions of industrial standardized raw materials with high added value are required to be less than one ten thousandth. The design of the relevant production line focuses on the later stage, that is, the removal of non-tea inclusions in tea leaves. However, there is no industrial standardized tea in Japan with less than 1 / 10,000 non-tea inclusions from raw tea raw materials to qualified cleansing. Continuous automatic production line; Fourth, the production process does not meet the requirements of existing standards for tea production, such as incomplete sterilization and reduced tea quality in the baking process due to heat source problems, low impurity removal accuracy in the sieving process, and manual sorting When using dynamic sorting, the clarity of the sorting is not enough, etc.

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