Tea vacuum drying, aroma improving and cooling device and method

Abstract

The invention discloses a tea vacuum drying, aroma improving and cooling device. The tea vacuum drying, aroma improving and cooling device comprises a roller bin, feeding equipment, discharging equipment, a driving device, a vacuum unit, a riding wheel, an air guide pipe, a roller path, a gear ring and a heating device. The heat transfer area of a drying and aroma improving bin is increased by 18-60 times, so that the heat transfer speed of heat is increased; the temperature of tea leaves in the processing process of the tea leaves in the drying and aroma increasing bin is controlled through the vacuum degree, and the relative pressure in the drying and aroma increasing bin is alternately and circularly carried out at the pressure of -0.088 Mp to -0.098 Mp and the pressure of -0.020 Mpa to-0.088 Mpa. The to-be-processed tea leaves in the bin are stirred and thrown up and down under the rotation action of spiral blades, the vacuum unit rapidly pumps out moisture generated during tea leaf drying, negative pressure is formed around the tea leaves in the drying and aroma improving bin, the purposes of rapid vacuum drying and aroma improving of tea leaves are achieved, the tea leaves are cooled in the vacuum drying process, and the quality of the tea leaves is optimized; and continuous tea vacuum drying, aroma improving and cooling are beneficial to improvement of enterprise benefits.

Description

technical field [0001] The invention relates to a tea drying and aroma enhancing machine, in particular to a cooling device for tea vacuum drying and aroma enhancement. Background technique [0002] 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. [0003] The high-temperature tea leaves after drying and aromatherapy need to be cooled outside, which takes time and effort to cool the tea leaves. During the cooling process, the tea leaves are likely to be polluted, and the humidity in the ambient air is also likely to cause the tea leaves t...

AI Technical Summary

Problems solved by technology

[0002] 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

[0003] The high-temperature tea leaves after drying and aromatherapy need to be cooled outside, which takes time and effort to cool the tea leaves. During the cooling process, the tea leaves are likely to be polluted, and the humidity in the ambient air is also likely to cause the tea leaves to return to moisture when cooling.

There are many problems such as poor color of hot air drying tea, easy loss of aroma and low aroma of vacuum freeze drying tea, long time consumption and high energy consumption.

Images