Continuous tea leaf vacuum drying fragrance extraction device and method

Abstract

The invention discloses a continuous tea leaf vacuum drying fragrance extraction device. A roller bin, feeding equipment, discharging equipment, a drive device, a vacuum unit, a riding wheel, an air guiding pipe, a roller path, a gear ring and a heating device are included. The roller bin comprises a heating bin, a drying fragrance extraction bin and a heat guiding working medium. The heat transfer area of the drying fragrance extraction bin is increased by 18-60 times, the heat transfer speed of heat is improved, and due to the vacuum degree that the relative pressure in the drying fragranceextraction bin ranges from -0.020 Mpa to -0.080 Mpa, the temperature of 60-93 DEG C of tea leaves needed in the processing process is controlled. The vacuum unit rapidly extracts moisture generated during tea leaf drying, the negative pressure is formed around the tea leaves in the drying fragrance extraction bin, and the purpose of rapid vacuum drying fragrance extraction of the tea leaves is achieved. Tea leaf vacuum drying fragrance extraction is achieved, and accordingly the problems that hot-air dried tea leaves are poor in color fragrance is likely to get lost, vacuum freezing dried tealeaves are low in fragrance, and long time and high energy are consumed are solved. Through continuous tea leaf vacuum drying fragrance extraction, improvement of enterprise benefits is facilitated.

Description

technical field [0001] The invention relates to a tea drying and aroma enhancing machine, in particular to a continuous vacuum drying and aroma enhancing device for tea leaves. Background technique [0002] The current drying and aroma enhancing machines have problems such as poor color of hot air drying tea, easy loss of aroma, low aroma of vacuum freeze drying tea, long time consumption and high energy consumption. The current drying and aroma enhancing machines cannot continuously dry and enhance the aroma of tea in a vacuum state. The traditional vacuum freeze-drying of tea is to perform a single tea drying work in a negative pressure environment, and the real demand for tea drying and aroma enhancement is In different time periods, different drying parameters, different drying processes and multiple drying pressures can best meet the technological requirements of tea drying and aroma enhancement. Contents of the invention [0003] The problem to be solved by the pres...

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Problems solved by technology

[0002] The current drying and aroma enhancing machines have problems such as poor color of hot air drying tea, easy loss of aroma, low aroma of vacuum freeze-dried tea, long time-consuming and high energy consumption, etc.

The current drying and aroma enhancing machines cannot continuously dry and enhance the aroma of tea in a vacuum state. The traditional vacuum freeze-drying of tea is to perform a single tea drying work in a negative pressure environment, and the real demand for tea drying and aroma enhancement is In different time periods, different drying parameters, different drying processes and multiple drying pressures can best meet the process requirements of tea drying and aroma enhancement

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