Steam generation device for tea leaf fixation machine and control method thereof

Abstract

The invention discloses a steam generation device for a tea leaf fixation machine and a control method of the steam generation device. The device comprises a combustion furnace, the upper end of the combustion furnace is connected with a metal tank furnace body, a furnace pipe is arranged in the metal tank furnace body, a U-shaped spiral pipe is arranged in the furnace pipe, a spiral pipe is arranged at the bottom of the U-shaped spiral pipe, and a metal steam pipe is arranged above the spiral pipe. The device has the advantages that superheated steam can be generated, the steam temperature can reach 300-350 DEG C, the steam amount is large, tea leaf enzyme inactivation only needs 15-20 seconds, the enzyme inactivation time is greatly shortened, the production efficiency is high, the device is suitable for large-scale production, and the production cost can be saved. The device has the advantages of being high in automation degree and convenient to use.

Description

technical field [0001] The invention relates to the field of tea processing equipment, in particular to a steam generating device and a control method for a tea greening machine. Background technique [0002] There is a steam fixation process in tea processing. After steam fixation, the tea has the advantages of good color, good taste and good soup color. At present, the supporting steam generators used for tea greening machines are generally heated by electric heating tubes, and a small part of them use boilers to generate steam. In the existing method, under standard atmospheric pressure, the water vapor temperature is about 100°C, and the continuous heating water vapor temperature can reach 150°C-200°C. The amount of steam generated is small, and the killing process takes about 90-120 seconds. The moisture content of the leaves is about 80%. [0003] However, according to the requirements of the tea making process, the moisture content of the green leaves can only enter...

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Problems solved by technology

[0004] However, through the method of hot air stove and dehydrator, the green leaves are prone to burnt edges during the hot air drying process, which will damage the quality of tea leaves

At the same time, the preservation time of fresh leaves is only 4 hours. Because the existing method generates less steam and takes a long time to complete, the existing method is only suitable for small enterprises with small scale and low output.

[0005] To sum up: the existing technology has the problem that the amount of steam generated is small, the time for greening is long, and the greening leaves are prone to scorched edges and damage the quality of tea leaves.

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