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A kind of microwave, light-wave compound de-greening machine and its de-greening process

A technology of degreening machine and light wave, which is applied in tea treatment before extraction, etc. It can solve the problems of high investment cost, smokey burnt taste and discoloration of finished tea, and achieve the effects of high efficiency, short heating time and high energy utilization rate

Active Publication Date: 2021-02-09
贵州安顺春来茶业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used deenzyming methods include steam deenzyming, microwave deenzyming, hot air deenzyming, and roller deenzyming; among them, steam deenzyming and microwave deenzyming methods quickly inactivate enzyme activity, fresh leaves are heated evenly, and the brown color is emerald green and fresh, but aroma, taste, etc. The quality and flavor are not good, and the investment cost is relatively high; the hot air fixes the temperature quickly, and the uniformity is good, and the tea produced has a high aroma and a mellow taste. However, due to the large temperature difference between the hot air and fresh leaves, the leaf temperature rises too fast, and it is difficult to master the technical parameters. , it is easy to produce burnt edge explosion points, resulting in a smoky burnt taste in the finished tea; drum fixing is the most important fixing method used in China. It has the characteristics of high production efficiency, easy operation, and can adapt to large-scale continuous production. The finished tea has a green color , full of fragrance, strong and refreshing taste, but it is easy to deform and change the color of the leaves when it is finished, and the traditional roller is used to heat coal, gas, electric heating tubes, etc., which has defects in thermal efficiency and temperature control stability; such as patent No. CN201310257640.6 discloses a green tea microwave de-enzyming process; such as patent No. CN201410506805.3 discloses a drum-type tea de-enzyming machine and a tea de-enzyming method; such as patent No. CN201210004475.9 discloses a green tea microwave , hot air joint finishing method

Method used

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  • A kind of microwave, light-wave compound de-greening machine and its de-greening process
  • A kind of microwave, light-wave compound de-greening machine and its de-greening process
  • A kind of microwave, light-wave compound de-greening machine and its de-greening process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Spread green: Pick green tea shoots or leaves that meet the standards, spread them on a clean utensil, the thickness of the spread is 5 cm, the time is 7 hours, turn the leaves every hour, and the spread time is not suitable It is too long to avoid stuffy smell, until the water content of the leaves is 65%, and the weight loss rate reaches 16%. At this time, the leaves become soft and give off a delicate fragrance, and the greening stage can be entered;

[0029] (2) Fixing: Use a microwave and light wave compound fixing machine to fix the leaves to be fixed, set the microwave power of the fixing bin to 800W, and the light wave power to 1000W, and when the predetermined temperature is 80-82°C, put the leaves to be fixed for 1 minute;

[0030] (3) Kneading: quickly transport the green leaves to the kneading machine, keep the leaf temperature at 50-80°C, knead for 12 minutes, knead barrel speed 45r / min, and knead force 550N to get the first kneaded product;

[0031] (4...

Embodiment 2

[0034] (1) Spread green: Pick green tea shoots or leaves that meet the standards, spread them on a clean utensil, the thickness of the spread is 6 cm, the time is 12 hours, turn the leaves every hour, and the spread time is not suitable It is too long to avoid stuffy smell, until the water content of the leaves is 67%, and the weight loss rate reaches 18%. At this time, the leaves become soft and give off a delicate fragrance, and the greening stage can be entered;

[0035] (2) Fixing: Use a microwave and light wave compound fixing machine to fix the leaves to be fixed, set the microwave power of the fixing bin to 1000W, and the light wave power to 700W, and when the predetermined temperature is 82-84°C, put the leaves to be fixed for 3 minutes;

[0036] (3) Kneading: Quickly transport the green leaves to the kneading machine, keep the leaf temperature at 70-80°C, knead for 15 minutes, knead barrel speed 55r / min, and knead force 600N to get the first kneaded product;

[0037] ...

Embodiment 3

[0040](1) Spread green: Pick green tea shoots or leaves that meet the standards, spread them on a clean utensil, the thickness of the spread is 6 cm, the time is 10 hours, turn the leaves every hour, and the spread time is not suitable It is too long to avoid stuffy smell, until the water content of the leaves is 68%, and the weight loss rate reaches 17%. At this time, the leaves become soft and give off a delicate fragrance, and the greening stage can be entered;

[0041] (2) Fixing: Use a microwave and light wave compound fixing machine to fix the leaves to be fixed, set the microwave power of the fixing bin to 1200W, and the light wave power to 800W, and when the predetermined temperature is 85-87°C, put the leaves to be fixed for 2 minutes;

[0042] (3) Kneading: quickly transport the green leaves to the kneading machine, keep the temperature of the leaves at 50-80°C, knead the time for 13 minutes, rotate the kneading barrel at 50r / min, and knead the force at 600N to obtain...

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Abstract

The present invention provides a microwave and light wave compound de-enzyming machine and its de-enzyming process, comprising a body, a machine foot, a de-enzyming chamber, a machine cover, a blanking cover, and a bucket; the body is installed on the machine foot, and the de-enzyming chamber It is arranged in the body, the machine cover is installed on the upper end of the body, the feeding cover is installed on the lower end of the killing chamber, the miscellaneous bucket is installed on the lower end of the body, the side wall of the body is provided with a heating assembly, and the machine cover is provided with There are wind leaves. The invention adopts microwave and light wave dual high-efficiency heating, which can generate huge heat in an instant, and because the heating is directly aimed at the blades, it does not need to transfer heat through the vessel, and it is carried out simultaneously inside and outside, the heating time is extremely short, and the efficiency is very high, which is higher than the general traditional heating. The method is more power-saving and has a high energy utilization rate, while the general heating method wastes a lot of heat energy on containers, spaces, etc., and wastes resources.

Description

technical field [0001] The invention relates to the field of tea processing, in particular to a tea greening device and process. Background technique [0002] Fixing is a key process in the primary production of green tea, which plays a decisive role in the quality of green tea. It mainly destroys the activities of polyphenol oxidase and peroxidase in fresh leaves through high temperature, prevents the oxidation of polyphenols, and prevents leaves from turning green. At the same time, part of the water in the leaves is evaporated to make the leaves soft. This process has a significant impact on the appearance, color, aroma and taste of the finished tea. [0003] At present, the commonly used deenzyming methods include steam deenzyming, microwave deenzyming, hot air deenzyming, and roller deenzyming; among them, steam deenzyming and microwave deenzyming methods quickly inactivate enzyme activity, fresh leaves are heated evenly, and the brown color is emerald green and fresh, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23F3/06
Inventor 沈强龙文琴熊双勇
Owner 贵州安顺春来茶业有限公司