JP2014033651A - Rubbing and drying machine for producing tea, and method for producing tea - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rubbing and drying machine which requires no minute settings and allows an operator skill not to seriously affect the quality of tea products, while conventional drying by heated air which imparts the similar thermal energy to the high-temperature part and the low-temperature part of tea leaves easily results in nonuniform drying, requiring careful attention to hot blast temperature, air flow, rubbing hand spring pressure, main shaft rotation speed, and the like.SOLUTION: The rubbing and drying machine for producing tea includes a rubbing and drying barrel having hot blast supply means and super heated steam supply means, so that both the hot blast and the super heated steam are supplied to dry tea leaves.

Description

  The present invention relates to a tea making machine dryer and a method for making tea, which are dried while brewing tea leaves.

  There are tea making machine dryers such as tea making machine, tea making machine, tea making machine, etc. Usually, hot air (heated air) is supplied, the tea leaves are stirred with a leaf-free hand, and the tea leaves are squeezed with a hand. However, the tea was dried at a constant rate.

New Tea Business 8th edition 317-320, 322-323 pages

  Conventionally, since drying is done with heated air, the hot and cold parts of the tea leaves receive the same heat energy, and the drying condition tends to be uneven, and the hot air temperature, air volume, massaging hand spring pressure, spindle speed, etc. are meticulous. Attention is required. And since fine setting is required, the skill of the operator has a great influence on the quality of tea products.

  The first means of the present invention is a tea-making cup that dries tea leaves by providing hot air supply means and superheated steam supply means on the bottle-drying drum of the tea making machine dryer, supplying both hot air and superheated steam. Dryer. In the second means of the present invention, the tea making machine dryer of the first means is a tea making machine. The third means of the present invention is a tea making method for drying tea leaves by supplying both hot air and superheated steam into a tea drum of a tea making machine.

  Since the superheated steam has about four times the amount of heat compared to heated air, it can be dried in a shorter time than the conventional one, and the running cost can be reduced. Although drying proceeds too much only with superheated steam, the degree of drying can be adjusted by mixing with conventional heated air. Further, when the superheated steam comes into contact with the tea leaves, high-temperature water condenses on the tea leaves, so that the rate of temperature rise is fast and drying up can be prevented. And since it has the characteristic of condensing preferentially in a low temperature part, a drying nonuniformity can be suppressed. As a result, detailed settings for preventing dry-up and uneven drying are not required, and the burden on the operator is reduced. Thus, the quality of the tea product is improved.

FIG. 1 is a side cross-sectional view of a teacup dryer. FIG. 2 is a front view of the tea making machine dryer.

  A tea making machine 1 will be described as an example of a tea making machine dryer. The tea making machine 1 puts tea leaves into the straw dryer 2 from above by a transport device (not shown), and squeezes the tea leaves while stirring them with the hand 4 and the leaf-free hand 5 attached to the rotary shaft 3. A part of the upper part of the dry drum 2 is used as an insertion port, and the other part is opened (or a metal mesh is attached) for natural exhaust. A part of the back surface of the reed dry drum 2 is a hot air blowing port 7, and air heated by the hot air generator 6 is sent to the reed dry drum 2. This hot air is 60 to 100 degrees depending on the setting. In the present embodiment, the hot air generator 6 is substantially integrated with the tea making machine 2 but may be provided separately.

  The superheater 2 is provided with a superheated steam supply pipe 26 and a superheated steam blow-in port 28, and superheated steam generated by the superheated steam generator 21 is sent into the dry cylinder 2. The superheated steam is 150 to 400 degrees, the superheated steam supply pipe 26 is substantially the same as the width of the tea making machine 1 and openings with a diameter of 3 to 15 mm (superheated steam inlets 28) are provided at a pitch of 50 to 300 mm. ing. However, the method for supplying superheated steam is not limited to this. In the case of the tea making machine 1, about 150% D.C. B. Of tea leaves, and 60% of D. tea leaves. B. When it is about time, remove the tea leaves. At this time, a part of the bottom surface of the dry drum 2 is opened, the tea leaves are taken out to the take-out conveyor 11, and conveyed to the next tea making apparatus (not shown) by the bucket conveyor 12.

  In the present embodiment, the tea making machine 2 is described, but the same applies to other tea making machines such as tea making machines and tea making machines.

DESCRIPTION OF SYMBOLS 1 Tea making machine 2 Coffee drying machine 3 Rotating shaft 4 Hand 5 Leaf-free hand 6 Hot air generator 7 Hot air inlet 9 Machine frame 10 Drive part 11 Takeout conveyor 12 Bucket conveyor 21 Superheated steam generator 22 Boiler 23 Steam supply pipe 24 Valve 25 Heating device 26 Superheated steam supply pipe 27 Valve 28 Superheated steam inlet

Claims (3)

  A tea brewing dryer characterized in that a hot air supply means and superheated steam supply means are provided in a cocoon dryer of a tea making machine dryer, and both hot air and superheated steam are supplied to dry tea leaves.   2. The tea making machine dryer according to claim 1, wherein the tea making machine is a tea making machine.   A tea-making method characterized in that both hot air and superheated steam are supplied into a tea-drying drum of a tea-making tea dryer to dry tea leaves.

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