Efficient and energy-saving oolong tea refined-baking and aroma-enhancing machine

Abstract

The invention relates to an efficient and energy-saving oolong tea refined-baking and aroma-enhancing machine. According to the machine, an electric heater is a cylindric thin-shell-type electric heating unit; a baking chamber formed by the inner cavity of the electric heater has uniform temperature distribution; and after tea leaves are added, by utilization of rising thermal currents in an oven body, dehumidification is performed automatically and the temperature distribution is further uniformed without a need of forcing air to flow to produce dehumidification and thermal conduction. Electric heating units of common electrothermal baking ovens conduct thermal to tea leaves through heat conduction of air flow, and therefore high-aroma compounds produced in baking processes are taken away by the rapid-flowing air flow, effective components are prevented from easy accumulation and reaction, and formation of aroma is hindered. The machine provided by the invention overcomes the above disadvantages of the common electrothermal baking ovens. According to the machine provided by the invention, a tea leaf oven is drove by a driving device, and therefore tea leaves can be turned over automatically, and the machine has no disadvantage of large labor intensity as electrothermal baking cages in which tea leaves are turned over repeatedly. By utilization of double-layer heat preservation and insulation layers comprising the inner heating device and a housing, and a heat exchanging manner of unforced convection, the machine provided by the invention has an advantage of significant energy saving effects over the electrothermal baking ovens and the electrothermal baking cages and 30-40% of energy can be saved.

Description

[0001] technical field [0002] The invention relates to the technical field of tea processing, in particular to electric tea baking equipment. Background technique [0003] Baking technology is an important process in the traditional tea making process of oolong tea. It not only controls the water content of the finished tea to facilitate storage, but also changes the content of the tea after the tea is heated, enhancing the unique aroma of the tea. There is a proverb among tea farmers: tea is king and fire is minister, which shows the importance of baking. The current baking methods mainly include charcoal baking cage baking (charcoal baking) and electric oven baking (machine baking). [0004] Charcoal baking cage baking (charcoal baking): Charcoal baking cage baking is a processing method with certain historical experience in tea production in my country. The operation process is complicated, including charcoal roasting, ignition, combustion, ash coating, temperature co...

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to propose a method that can overcome the following defects: "Because the electric heating device is used to conduct heat to the tea leaves through the air flow, so that the fast-flowing air flow will take away High-aroma compounds produced during the tea roasting process; because the electric heating device is used to transfer heat to the tea leaves through air flow, the fast-flowing airflow is not easy to accumulate and react the active ingredients produced during the tea roasting process, thereby producing more high-aroma compounds , and can meet the technical requirements of oolong tea refined roasting thermal processing, and do not need to repeatedly turn the tea leaves during the baking process like an electric roasting cage "high-efficiency and energy-saving oolong tea refined roasting machine"

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