JPH11113490A - Structure for preventing steamed green tea leaf from sticking in steamed green tea leaf treating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide both a structure for preventing a steamed green leaf from sticking to the vicinity of a charging port capable of preventing the charged green tea leaf from sticking to the vicinity of the charging port and directly peeling off the green tea leaf even if the steamed green tea leaf sticks thereto so as not to dry and flavor the steamed green leaf more than those necessary as the whole treatment for the steamed green leaf in a steamed green tea leaf treating machine and to provide a method for preventing the steamed green tea leaf from sticking thereto. SOLUTION: This structure for preventing a steamed green tea leaf A from sticking to the vicinity of a charging port is obtained by heating a site where the steamed green tea leaf A is charged and dropped in a rotating drum 3 at a higher temperature than that for heat-treating the steamed green tea leaf A by, e.g. >=50 deg.C with a heating device 6 in a steamed green tea leaf treating machine 1 capable of performing the removal of steam dew of the steamed green tea leaf A. The site for heating is within the range of, e.g. 1/4 of the total length from the side of the charging port 3a of the rotating drum 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam processing machine for removing steam dew adhering to steam leaves subjected to a steaming process. The present invention relates to a structure and a method for preventing such a situation.

[0002]

BACKGROUND OF THE INVENTION Steamed leaves, which are conventionally tea leaves steamed by a steamer, are introduced into a steaming machine as a pre-treatment prior to beating or rough rubbing, where the steam dew adhering to the steamed leaves is deposited. , While adding a unique flavor. This steaming-leaf processing machine is provided with, for example, a net-shaped rotating drum provided with an agitating bar or the like on the inner peripheral surface, and blowing the hot air onto the steamed leaves while rotating this rotating drum to rotate the rotating drum so that the steam is dispersed as described above. Dew is being removed.

[0003] In such a conventional steaming leaf processing machine, when steamed leaves are dropped from an inlet, the steamed leaves are stuck on the throwing-down portion of the rotary drum or the entire rotary drum as it is, so that the steam leaves fall into the rotary drum. There was a problem that the supply of hot air was hindered, resulting in insufficient treatment. In addition, there is a problem that a mass of tea leaves which are stuck, dried excessively and discolored sometimes fall off and mix in, and deteriorate the quality of the processed tea leaves as a whole.

[0004] Therefore, in order to prevent such steamed leaves from adhering to the drop-in portion, and so that the steamed leaves once adhering are immediately peeled off, the steamed leaves are essentially removed by steaming and a unique flavoring process. In view of the above, the setting of increasing the temperature of the hot air to an extent not necessary and raising the temperature was performed by a tea master.

However, increasing the temperature and the temperature of the hot air so that it is not necessary from the viewpoint of the original steaming treatment as described above may cause the processed tea leaves to be excessively dried or deteriorated in quality. Cause. Energy savings such as fuel and electricity for heating also hinder labor saving.

[0006]

[Technical Problems Attempted to Be Developed] The present invention has been made in view of such a background, and it is possible to prevent the introduced tea leaves from adhering mainly to the vicinity of the inlet and to the entire rotating drum, and even if adhering. As for the treatment of the whole steamed leaves, which is immediately peeled off, the development of a structure and a method for preventing the adhesion of steamed leaves in a steaming machine in which the steamed leaves are not dried and flavored more than necessary is attempted. It is.

[0007]

According to a first aspect of the present invention, there is provided a steam-leaf treating apparatus for steam-leaf treatment, wherein a steamed leaf, which is steamed tea leaves, is rotated with a rotating drum before the leaves are beaten or roughly rubbed. In a steaming machine that heats and removes steam dew while stirring, a heating device is provided that heats a place where the steamed leaves in the rotary drum are thrown in at a temperature higher than a temperature at which the steamed leaves are heated. It is characterized by the following. According to the present invention, the place where the steamed leaves are thrown in and dropped on the rotating drum is heated, so that the steamed leaves are prevented from adhering to the dropped and thrown places and the entire rotating drum. Therefore, it is not necessary to unnecessarily increase the air volume or the temperature of the steaming machine in order to prevent the adhesion of steamed leaves. In addition, since the useless air volume and temperature are not set, the energy loss is small and the running cost can be suppressed. In addition, since the rotating body can be used for rotation, there is no need to install a heating device facing the entire peripheral surface of the rotating body.

[0008] In addition to the above requirements, the steaming machine according to the second aspect of the present invention provides the steaming machine according to the second aspect, wherein the heating device further comprises:
It is characterized in that it is provided in a range of 1/4 of the entire length from the input port side of the rotary drum. According to the invention,
Conventionally, steamed leaves are particularly adhered in a range of 1/4 of the entire length from the input port of the rotary drum. By heating the steamed leaves, adhesion of the steamed leaves can be largely prevented.

Further, in the steam-leaf treating apparatus according to the third aspect, in addition to the above requirements, the heating temperature of the heating device is set at a temperature higher by 50 ° C. or more than the temperature at which the steam-leaves are heated. It is characterized by being performed. According to the present invention, it is possible to sufficiently prevent the adhesion of steamed leaves.

The method for preventing adhesion of steamed leaves in the steamed leaf processor according to claim 4 further comprises the steps of:
In the method for preventing sticking of the introduced steamed leaves to the rotating drum in a steaming processor that performs heating and removes steam dew before stirring or rotating with the rotating drum, before performing foliage or rough kneading, Is heated at a temperature higher than the temperature at which the steamed leaves are heated. According to this invention, the place where the steamed leaves in the rotary drum are dropped is heated,
Steamed leaves are prevented from adhering to the dropping point and the entire rotating drum. Therefore, it is not necessary to unnecessarily increase the air volume or the temperature of the steaming machine in order to prevent the adhesion of steamed leaves. Also, because it is not set to useless air volume and temperature,
Energy loss is small and running costs can be reduced.

According to a fifth aspect of the present invention, there is provided a method for preventing adhesion of steamed leaves in a steaming machine, in addition to the requirement of the fourth aspect, wherein the portion heated at a temperature higher than the temperature at which the steamed leaves are heated is rotated. From the inlet side of the body to the outlet side, 1 /
4, and the heating temperature is set at a temperature higher by at least 50 ° C. than the temperature at which the steamed leaves are heated. According to the present invention, since steamed leaves particularly adhere to a region of 1/4 of the entire length from the input port of the conventional rotary drum, the steamed leaves can be largely prevented by heating the steamed leaves. Further, since the heating temperature of the rotating drum is at least 50 ° C. higher than the temperature at which the steamed leaves are heated, the adhesion of the steamed leaves is effectively prevented.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. In the following description, first, a steam processing machine provided with a steam-leaf adhesion preventing structure according to the present invention will be described, and then an operation mode of the steam processing machine will be described. The method for preventing adhesion of steamed leaves will be described. The device indicated by reference numeral 1 in the figure is a steaming leaf processing machine provided with the steaming leaf adhesion preventing device according to the present invention. The steaming machine 1 is provided between a steamer and a leaf driving machine or a rough kneading machine in the absence of a leaf driving machine in a tea making line, to remove steam dew adhering to the steamed leaves A and to have a unique flavor. Is added. Then, the moisture value of the steamed leaves A is reduced by about 20% by this device. The structure for preventing adhesion of steamed leaves according to the present invention is provided near the inlet 3a of the rotating drum 3. An apparatus provided in front of the steaming machine 1 is a feeding conveyor C, by which steamed leaves A sent from the steaming machine are fed into the rotating drum 3.

First, the steam-leaf processing machine 1 will be described briefly. As shown in FIGS. 1 and 2, a metal panel is stretched over a machine frame 2 to form an outer shell 4, and a rotating body is formed therein. The body 3 is provided rotatably. The rotating drum 3 is formed, for example, by stretching a wire mesh on a cylindrical frame so as to have air permeability, and is driven to rotate by a rotation driving device. Rotating barrel 3
As shown in FIG. 3, an agitating bar 3c is fixedly provided spirally as an example, as shown in FIG. 3, and guides the steamed leaves A fed from the inlet 3a to the outlet 3b while scraping the leaves. A wind guide 5 is provided at the upper rear of the outer shell 4, to which hot air from a hot air device installed outside is supplied.

The outline of the steaming-leaf treating machine 1 is as described above. As a feature of the present invention, the heating device 6, which is a main member of the structure for preventing the steam-leaf adhesion, is configured such that the heating device 6 is approximately 1/1 of the total length from the input port 3a side of the rotary drum 3.
4 is installed on the outer shell 4 so as to heat the area 4. The heating device 6 is formed, for example, by extending a nichrome wire on a metal bracket, and has a length of about 1/4 of the rotating drum 3 as shown in FIG. The heating device 6 is provided so as to face upward and forward of the rotating drum 3 as an example.

The steaming-leaf treating machine provided with the steam-leaf adhesion preventing structure according to the present invention is constituted by the above-described specific members as an example. The method for preventing adhesion of steamed leaves in the steamed leaf processor according to the present invention will be described. In the operating state of the steaming machine 1, the rotating drum 3 is rotated in a fixed direction, and from the air guide 5, the standard temperature is 70-80 so that the leaf temperature is about 34 ° C. in the case of standard steaming.
Hot air of 0 ° C. is blown onto steamed leaves A. In the case of deep steaming, hot air of 80 to 90 ° C. is blown to the steaming leaves A so that the leaf temperature becomes about 36 ° C., but the upper limit of the temperature of the hot air is about 100 ° C. As described above, the steamed leaves A are removed from the steam dew while being stirred (scattered) in the rotary drum 3 from the input port 3a toward the discharge port 3b, and have a unique flavor.

As a feature of the method for preventing sticking of steamed leaves in the steaming machine according to the present invention, the inlet 3a of the rotary drum 3 is heated at 150 to 200 ° C. by the heating device 6. In the inventions according to claims 3 and 5, the heating temperature of the heating device 3 is 50 ° C. higher than the temperature at which the steamed leaves A are heated.
The temperature is set to a higher temperature. The heating device 6 is provided so as to heat one portion of the peripheral surface of the rotating drum 3. However, since the rotating drum 3 is rotating, 1 / one of the entire length from the input port 3 a side. 4 is heated. Because of this heating, the surface of the steamed leaves fed by the feeding conveyor C and brought into direct contact with the rotating drum 3 has a relatively large amount of water removed relatively quickly and remains there by the water surface tension. The rotating barrel 3 is moved along the stirring bar 3c as shown in FIG.

[0017]

Other Embodiments Although the basic embodiment of the present invention is as described above, various other modifications can be made. For example, the installation position of the heating device 6 may be located at any point on the peripheral surface of the rotating drum 3. For example, as shown in FIG.
4 (a), the lower part (see FIG. 4 (b)), and the side (see FIG. 4 (c)). Of course, a plurality of heating devices 6 may be installed at a plurality of locations, and the heating range may be changed in various ways. For example, the heating device 6 surrounds the entire peripheral surface of the rotating drum 3 and directly heats the entire peripheral surface. May be adopted.

As the heating device 6, various devices capable of heating the dropped portion of the rotating drum 3 can be applied. For example, as shown in FIG. It does not matter. The temperature of the hot air at this time is set to a temperature higher than the temperature at which the steamed leaves A are heated by 50 ° C. or more. In the case of hot air, in particular, there is a blowing action by the wind in addition to a drying action by heat. Further, as another embodiment of the heating device 6, a mode in which the rotary drum 3 is directly heated by a burner can be adopted.

Further, the heating device 6 may be a device that heats the rotating drum 3 in a non-contact manner, or a device that heats the rotating drum 3 in a contact manner. FIG. 5B shows an embodiment in which a heater rotor serving as a heating device 6 is brought into contact with the rotating drum 3 to heat a throw-in portion of the rotating drum 3.

In the present invention, the installation position of the heating device 6 is not limited to the outer surface side of the rotating drum 3. That is, the heating device 6 may be provided inside the rotating drum 3 as shown in FIG. In the drawing, a heating device 6 using hot air is applied.

In the basic embodiment, the rotary drum 3 is of a full wire mesh type. However, other shapes such as forming the first half with a cylindrical iron plate and the second half with a wire mesh are used. May be implemented. In addition, the rotating drum 3 can be formed of a punching metal.

In addition to heating the rotary drum 3 directly by the heating device 6, the rotary drum 3 may be heated indirectly via another member. FIG. 7 shows a cylindrical heat receiving body 7,
The heating unit 6 heats the heat receiving body 7 and heats the rotating body 3 by the heat of the heat receiving body 7. The heating body 6 heats the heat receiving body 7 from the input port 3 a side of the rotating body 3. It was done. The outer surface of the heat receiver 7 is painted black so as to easily absorb the heat of the heating device 6. The heat receiver 7 is made of a metal or other member, and is formed of at least a flame-retardant member. Note that the heat receiving body 7 and the rotating drum 3 may be provided at a fixed distance from each other, or may be provided in contact with and wound around. When the above-described heating means is employed, when the rotating body 3 is directly heated by the heating device 6, the mesh portion cannot be heated. However, when the heating is performed by using the heat receiving member 7, the mesh is not limited to the wire mesh. Is always heated over the entire peripheral surface.

[0023]

According to the structure for preventing adhesion of steamed leaves in the steaming machine according to the first aspect of the present invention, the place where the steamed leaves A are thrown into the rotating drum 3 of the steaming machine 1 is heated.
It is possible to prevent the steamed leaves A from adhering to the dropping point and the entire rotating drum 3. Therefore, it is not necessary to unnecessarily increase the air volume or the temperature of the steam processing apparatus 1 in order to prevent the adhesion of the steam leaves A. In addition, since the useless air volume and temperature are not set, the energy loss is small and the running cost can be suppressed. Further, since the rotation of the rotating drum 3 can be used, the heating device 6 faces the entire peripheral surface of the rotating drum 3.
Need not be installed.

According to the structure for preventing the adhesion of steamed leaves in the steaming machine according to the second aspect, the steamed leaves A are particularly attached to the area of 1/4 of the entire length from the input port 3a of the conventional rotary drum 3, so that the steamed leaves are in this range. By heating, the adhesion of steamed leaves A can be largely prevented.

According to the third aspect of the present invention, the heating temperature is set at a temperature 50 ° C. or higher than the temperature at which the steamed leaf A is heated.
Can be sufficiently prevented.

According to the method for preventing adhesion of steamed leaves in the steaming machine according to the fourth aspect, the place where the steamed leaves A in the rotary drum 3 of the steaming machine 1 are dropped and heated is heated. The steamed leaves A are prevented from adhering to the falling point and the entire rotating drum. Therefore, it is not necessary to unnecessarily increase the air volume or the temperature of the steam processing apparatus 1 in order to prevent the adhesion of the steam leaves A. In addition, since the useless air volume and temperature are not set, the energy loss is small and the running cost can be suppressed.

According to the method for preventing the adhesion of steamed leaves in the steaming machine according to the fifth aspect, since the steamed leaves A are particularly adhered in the range of 1/4 of the entire length from the input port 3a of the conventional rotary drum 3, the steamed leaves are used here. By heating, adhesion of steamed leaves A can be largely prevented. The temperature at which the rotating drum 3 is heated is at least 50 ° C. higher than the temperature at which the steamed leaves are heated, so that adhesion of the steamed leaves is effectively prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a steaming-leaf processing machine having a steam-leaf adhesion preventing structure according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a perspective view showing an operation mode of a place where the steamed leaves of the rotating drum are thrown in and dropped.

FIG. 4 is a skeleton side view showing another three types of embodiments in which the installation position of the heating device is changed.

FIG. 5 is a skeleton side view showing another two types of embodiments in which a hot air device and a heat rotor are applied as a heating device.

FIG. 6 is a skeletal side view showing another embodiment for heating a place where the rotary drum is dropped from the inside of the rotary drum.

FIG. 7 is a skeletal side view showing another embodiment in which a rotary drum is heated via a heat receiving body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steaming machine 2 Machine frame 3 Rotating drum 3a Input port 3b Discharge port 3c Stirrer bar 4 Outer drum 5 Air conduction 6 Heating device 7 Heat receiving body A Steaming leaf C Feeding conveyor

Claims (5)

[Claims] 1. A steaming machine for heating steamed tea leaves, which is heated with stirring by a rotating drum to remove steam dew, before performing leaf beating or rough kneading. A steam-leaf adhesion preventing structure in a steam-leaf processing machine, wherein a heating device is provided for heating a place where the leaves are thrown in at a temperature higher than a temperature at which the steam-leaves are heated. 2. The structure as claimed in claim 1, wherein the heating device is provided in a range of １ ／ of the total length from the input port side of the rotary drum. 3. The steaming leaf in the steaming machine according to claim 1, wherein a heating temperature of the steaming device is set at a temperature 50 ° C. or higher than a temperature at which the steamed leaf is heated. Anti-adhesion structure. 4. A steamed leaf, which is a steamed tea leaf, is heated by stirring with a rotating drum to remove steam dew before steaming or rough kneading. In the method of preventing adhesion to the rotating drum, in the steaming leaf processing machine, wherein the location where the steamed leaves in the rotary drum are dropped is heated at a temperature higher than the temperature at which the steamed leaves are heated. A method for preventing adhesion of steamed leaves. 5. The location where the steamed leaves are heated at a temperature higher than the temperature at which the steamed leaves are heated is in a range of 1/4 from the input port side to the discharge port side of the rotary drum, and the heating temperature is set at the heating temperature. 5. The method according to claim 4, wherein the temperature is set at a temperature higher by at least 50 [deg.] C. than the temperature at which the steamed leaves are heated.