JP6798915B2 - Inappropriate tea leaf sorting and removal device - Google Patents

Description

The present invention relates to a sorting and removing device for unsuitable tea leaves, and more particularly to a device for sorting and removing unsuitable tea leaves capable of effectively removing cut leaves and crushed leaves.

A tencha manufacturing machine obtained by steaming fresh tea leaves and then drying them without kneading is composed of a combination of a steamer, a cooling device, and a drying device.
The tea-scattering cooling device, which is an example of the cooling device, is a device for separating steamed leaves and developing broken leaves in addition to removing steaming dew and rapid cooling after steaming the tea leaves. It is composed of one or more tea barrels, commonly known as "Andon", with a wire mesh stretched over a tower-shaped frame of about several meters.
A blower is connected to the lower part of the tea body, and the tea leaves are blown up to a height of 4 to 5 m in the tea body by the blower and then fall. Then, in the process of repeating such blowing and dropping, the tea leaves are cooled by removing steaming dew, the overlapping leaves are separated, and the broken leaves are expanded.
Next, the tea leaves are sent to a band type dryer, dried to a desired moisture value, and then appropriately crushed to complete Tencha. Matcha is made by further grinding this tencha with a stone mill into a fine powder batch.

By the way, in such a tea-spraying cooling device, the quality of Tencha as a product may be deteriorated due to the following problems associated with the retention of tea leaves in the tea-spraying cylinder.
First, the lightweight tea leaves repeatedly rise and fall in a narrow area of the upper space inside the tea-spraying body due to the blowing wind, and stay at that part. Tea leaves in such a state are called floating leaves.
In addition, the steamed dew may become a binder and the steamed leaves may stick to the wire mesh, or the tea leaves may be pressed against the wire mesh by the wind pressure and stay at that part.
The tea leaves that stay in the tea barrel will change in color and taste over time, and if they fall in some way and mix with other tea leaves, the quality of Tencha as a product will deteriorate. ..
Furthermore, if the tea leaves stick to the net unit of the tea body, the air permeability will decrease, and the momentum of the blowing wind will be impaired. As a result, the dispersibility of the tea leaves, the separability of the overlapping leaves, and the breakage will be lost. The expandability of the leaves is reduced.

Therefore, the applicant can automatically collect the floating leaves that stay in the upper part of the tea body, and can easily drop the steamed leaves stuck to the inner peripheral surface of the tea body. We have developed a new tea-spraying device with a floating leaf recovery device that can eliminate stagnant steamed leaves, and have already applied for a patent and obtained a patent right for the technology (see Patent Document 1).
In this device, a discharge port for discharging floating leaves is formed in the upper part of the inside of the tea-spraying cylinder, and a transfer body for transferring the floating leaves by contacting the floating leaves and moving toward the discharge port is provided. It is characterized by.
According to the present invention, it has become possible to prevent the floating leaves from being mixed with other steamed leaves in the powdered tea cylinder and to prevent the quality of Tencha as a product from deteriorating.

By the way, in all kinds of processed tea leaves whose processing form is different from that of Tencha, unsuitable tea leaves that are not suitable for tea making are removed. For example, a cutting leaf remover, a fluid type fresh leaf dehydrator, a rotary cylinder processing machine, etc. , Inappropriate tea leaves were separated and removed using a dedicated device, but these dedicated devices are a factor that increases the cost for the factory that introduces a series of tea processing equipment, and the limit in the factory. It will put pressure on the installed space.

In addition, most of the unsuitable tea leaves are often small pieces of a certain size or less. For example, in the case of tea leaves suffering from charcoal disease, for example, when the tea leaves are heat-treated by a blue-killing machine in the tea making of kamairicha, they are affected. The part is easier to burn than the unaffected part, and the surrounding area including the burned part is crushed into fine pieces (crushed leaves) during the subsequent transfer or in the tea making process.
Furthermore, in the extraction of tea leaves from tea plants, a method called one-core two-leaf or one-core three-leaf is used, which is a sencha finished by picking the upper two or three leaves from one core (stem). However, it is a plucking method that is adopted because it has an extremely high quality taste and aroma. Of course, in reality, it is often cut by a plucking machine. In this case, the upper part of the tea plant is cut from a few centimeters, and the leaves are plucked close to one-core two-leaf and one-core three-leaf. It is inevitable that a part of the tea will be cut into small pieces, and the finely cut tea leaves (cut leaves) are more likely to cause quality deterioration than other parts, resulting in deterioration of the quality of the product tea.

Japanese Patent No. 3374186

The present invention has been made in consideration of such a background, and selection of new unsuitable tea leaves capable of effectively removing cut leaves and crushed leaves that cause deterioration of the quality of various processed tea leaves. The technical issue is to develop a removal device.

That is, the unsuitable tea leaf sorting / removing device according to claim 1 is a device for sorting and removing unsuitable tea leaves by blowing up the treated tea leaves from the bottom to the top with respect to the breathable tea barrel arranged in a tower shape. Therefore, the tea-spraying cylinder has a multi-layer structure consisting of an inner cylinder and one or a plurality of outer cylinders arranged outside the inner cylinder, and the interface between the inner cylinder and the outer cylinder is defined as described above. It is characterized in that it is a sorting passage surface formed by a ventilation net having a coarser mesh than the ventilation net constituting the other surface of the tea body .

Further, in the unsuitable tea leaf sorting / removing device according to claim 2, in addition to the above requirements, the inner body and the outer body constituting the tea-spraying cylinder are detachable from each other and suspended above the tea-spraying cylinder. It is characterized by being equipped with members for use.

Furthermore, the device for sorting and removing unsuitable tea leaves according to claim 3 is provided between the steamer and the dryer in addition to the above requirements, and in addition to sorting and removing unsuitable tea leaves, removal of steamed dew, cooling of steamed leaves, It is characterized in that it is used for the production of Tencha by separating the overlapping leaves and developing the broken leaves.

Further, the unsuitable tea leaf sorting / removing device according to claim 4 is characterized in that, in addition to the requirement according to claim 3, a plurality of the tea leaves are connected in series.
Then, the above-mentioned problems are solved by using the configurations described in each of these claims as means.

First, according to the invention of claim 1, tea leaves that are repeatedly blown up and dropped in the inner body of the tea-spraying body are unsuitable for tea leaves that have become small pieces of a certain size or less that can pass through the sorting passage surface. It is possible to sort and remove the tea as a result, and it is possible to avoid deterioration of the quality of the product tea due to inappropriate tea leaves.
Further, in the sieving method, since the tea leaves are deposited in a state of being overlapped on the net body, the removal of the unsuitable tea leaves tends to be insufficient or inefficient, whereas according to the present invention, the unsuitable tea leaves are separated and removed. At this time, since the tea leaves are dispersed in the inner body, the unsuitable tea leaves of small pieces directly collide with the sorting passing surface without overlapping with other tea leaves, and efficient sorting can be realized.

Further, according to the invention of claim 2, by separating the inner body and the outer body, the sorting passing surface which is the boundary surface between them can be easily exposed, and the tea leaves caught on the sorting passing surface can be removed. Maintenance such as cleaning can be easily performed.
Further, the tea-spraying cylinder can be hung on the machine frame of the existing tea-spraying cooling device in the tea factory and diverted, or further suspended on the ceiling or beam of the factory.

Further, according to the invention of claim 3, by replacing the unsuitable tea leaf sorting / removing device with an existing tea-spraying cooling device, tencha is produced without adding a separate sorting / removing step for unsuitable tea leaves. Can be done.
Further, when a band type dryer is used as the dryer, if fine pieces pass through the ventilation holes of the band and reach the heating portion located below, it may cause a fire, but such a situation is avoided. be able to.

Furthermore, according to the invention of claim 4, it is possible to more reliably remove steamed dew, cool steamed leaves, separate overlapping leaves, and develop broken leaves.

It is a perspective view which shows the unsuitable tea leaf sorting removal apparatus of this invention in a partially enlarged manner. The same is the front view, the side view, and the plan view. It is a perspective view which shows the inner body and the outer body. It is explanatory drawing which shows the state of the selection removal of the unsuitable tea leaf stepwise by the selection removal apparatus of the unsuitable tea leaf of this invention. It is a front view, a side view, a back view and a plan view which show the unsuitable tea leaf sorting and removing apparatus of the form which supply tea leaves and blowing wind separately. It is a perspective view and the plan view which shows various examples of the inner body and the outer body which differed form. It is a side view which shows the Example which provided the unsuitable tea leaf sorting and removing apparatus of this invention between a steamer and a dryer.

The best mode of the present invention is as described in the following examples, but it is also possible to make appropriate changes within the scope of the technical idea of the present invention.
In the following description, first, the configuration of the unsuitable tea leaf sorting / removing device 1 (hereinafter, referred to as the sorting / removing device 1) of the present invention will be described, and then the operation mode of this device will be described.
Further, in the present specification, the unprocessed tea leaves as they are cut from the tea plant are referred to as raw tea leaves A0, the tea leaves processed by the steamer 2 are referred to as steamed leaves A1, and the steamed leaves A1 are further scattered. The tea leaves processed by the sorting and removing device 1 as the tea cooling device are called cooling leaves A2, and the tea leaves in which the cooling leaves A2 are processed by the band type dryer 3 are called dried leaves A3. To do.
Further, tea leaves that are not suitable for tea-making processing, such as cut leaves A4 in which a part of the leaves are cut into small pieces at the time of plucking, are called unsuitable tea leaves A5.

The sorting and removing device 1 of the present invention is a device for sorting unsuitable tea leaves A5 by blowing up the tea leaves to be treated from the bottom to the top with respect to the breathable tea barrel 10 arranged in a tower shape. The tea shaving cylinder 10 has a multi-layer structure consisting of an inner cylinder 11 and one or more outer cylinders 12 arranged outside the inner cylinder 11.
Further, the boundary surface between the inner cylinder 11 and the outer cylinder 12 is a sorting passage surface S formed by a ventilation net M2 having a coarser mesh than the ventilation net M1 constituting the other surface of the tea-spraying cylinder 10.

Hereinafter, each component will be described with respect to a basic embodiment of the sorting / removing device 1 shown in FIGS. 1 and 2.
First, the tea-spraying cylinder 10 is configured by providing an inner cylinder 11 and an outer cylinder 12 with respect to a machine frame 10a framed so as to be vertically arranged in a tower shape, and these inner cylinders 11 and outer cylinders 12 are provided. As an example, 12 is formed by suturing a ventilation net M made of synthetic resin fibers or natural material fibers.
In this embodiment, as an example, the height dimension of the machine frame 10a is 380 cm, and the height dimension of the inner body 11 and the outer body 12 is 300 cm.

The inner cylinder 11, as shown in FIG. 3, than the upper surface is formed by a square tube-shaped closure, one broad aspect as an example 7 is formed by the ventilation network M 2 mesh (Tyler), other The three side surfaces and the upper surface of the above are formed by a ventilation net M 1 of 48 mesh (Tyler) as a finer example. Hereinafter, the surface formed by the ventilation net M 2 which is coarser than the ventilation net M 1 and which is the boundary surface with the outer body 12 is referred to as a sorting pass surface S.
In this embodiment, the bottom surface of the inner body 11 is in an open state, but the bottom surface may be formed by a ventilation net M2 to deposit tea leaves, and the tea leaves may be collected from a separately provided opening / closing portion.
Further, a hook-and-loop fastener F is provided along the upper edge portion and both left and right edge portions of the sorting pass surface S. Furthermore, loops 11a as hanging members are provided on each side of the upper surface of the inner body 11 as an example, two wheels on each side.

On the other hand, the outer body 12 is formed in a square tubular shape in which one of the wide side surfaces is open while the upper surface is closed, and the three side surfaces and the upper surface are taken as an example by a 48 mesh (Tyler) ventilation net M1. Form. A hook-and-loop fastener F is provided along the peripheral edge of the open side surface.
The hook-and-loop fastener F provided on the outer body 12 and the surface fastener F provided on the inner body 11 are attached or detached by engaging with each other with minute elements provided therein. Can be done freely.
Further, in this embodiment, the outer body 12 is not provided with the loop 11a which is a member for hanging, but the loop 11a may be provided in the same manner as the inner body 11.

Then, the surface fastener F on the inner body 11 and the surface fastener F on the outer body 12 are attached to integrate the two, and the inner body 11 and the outer body 12 are attached to and detached from each other by the surface fastener F. Be free. In this state, the open lower surface of the outer body 12 is referred to as a discharge port 12a.
Then, as shown in FIG. 1, by hooking the loop 11a on the hook 10b provided on the upper part of the machine frame 10a, the integrated inner body 11 and outer body 12 are suspended in the machine frame 10a. To.
The integrated inner body 11 and outer body 12 may be suspended from the ceiling or a beam. In this case, since the machine frame 10a is not required, the degree of freedom of installation is increased, and the inside of a tea factory or the like is built. Can be effectively used.

Further, an air guide tube base 10c is provided in the lower part of the machine frame 10a, and an air guide tube 10d is provided with respect to the air guide tube base 10c.
The air guide tube 10d penetrates the air guide tube base 10c and is located from the outside to the inside of the machine frame 10a, and is inserted into the leaf feeding port 11b formed in the lower part of the inner body 11 to discharge. The outlet 10e is set so as to point diagonally upward inside the inner body 11.
It should be noted that a part or all of the air guide tube base 10c can be made movable so that the directivity direction of the discharge port 10e in the air guide tube 10d provided in the air guide tube base 10c can be changed.

Then, as shown in FIGS. 1 and 4, the blower duct 15 is connected to the portion of the air guide tube 10d located outside the air guide tube base 10c, and the leaf feeder 14 and the blower 13 are further connected to form a tea-spraying cylinder. A mechanism for supplying tea leaves and a blower W for blowing up the tea leaves is configured in 10.

The sorting and removing device 1 of the present invention is configured as described above as an example, and the operation mode of this device will be described below. In this embodiment, a mode is described in which raw tea leaves A0 are continuously treated by the sorting and removing device 1 to sort and remove the cut leaves A4, which are small pieces having a certain size or less at the time of plucking, as unsuitable tea leaves A5. To do.

When the blower 13 is first activated and then the raw tea leaves A0 are put into the leaf feeder 14, the raw tea leaves A0 move in the blower duct 15 by the blower W from the blower 13, and eventually enter from the leaf supply port 11b through the air guide tube 10d. It is released into the body 11 (see FIG. 4 (a)).
As shown in FIG. 4B, the raw tea leaves A0 released into the inner body 11 in this way are blown up to the vicinity of the top of the inner body 11 by the blast W, and eventually the action of the blast W weakens and its range of action. It comes off from and falls. Then, a part of the raw tea leaves A0 that has fallen to the lower part in the inner body 11 further falls and is discharged to the outside of the inner body 11 and sent to the next process such as the steam locomotive 2. On the other hand, the remaining raw tea leaves A0 are blown up to the vicinity of the upper part of the inner body 11 by the action of the blower W again, and the movement of falling is repeated (see FIG. 4C).

And when the drop and such blown is repeated, fresh tea leaves A0 is for impinging the ventilation network M1, M2 is a wall portion of the inner cylinder 11, the coarse venting network M 2 than the ventilation network M 1 Of the raw tea leaves A0 that collide with the formed sorting pass surface S, only the cut leaves A4 having a certain size or less pass through the sorting pass surface S and enter the outer body 12 as unsuitable tea leaves A5 (FIG. 1 Enlarged view, see FIG. 4 (c)).
The unsuitable tea leaf A5 then descends inside the outer body 12 and is housed in a collection bag 12b attached to the discharge port 12a (see FIG. 4C).
At this time, since the raw tea leaves A0 are constantly exposed to the blast W, the heat generated by the respiration of the raw tea leaves A0 can be dissipated to prevent leaf burning.

When the raw tea leaves A0 are processed in a batch system, the blower 13 is stopped when the selection and removal of the unsuitable tea leaves A5 from the raw tea leaves A0 for one batch is completed, and the size is equal to or larger than a certain size located in the inner body 11. Raw tea leaves A0 are collected and sent to the next process such as steam locomotive 2 (see FIG. 4 (d)).

[Example of supplying tea leaves and blowing wind separately]
In the above-mentioned basic embodiment, an example in which the tea leaves (raw tea leaves A0) and the blower W are supplied together into the inner body 11 through the blower duct 15 is shown, but as shown below, the tea leaves and the blower W Can also be supplied separately.
The sorting / removing device 1 shown in this embodiment has the same basic configuration as the sorting / removing device 1 shown in the above-mentioned basic embodiment, and only the differences will be described below.

Specifically, as shown in FIG. 5, a ventilation net M1 formed of punching metal or the like is stretched on the peripheral surface of the machine frame 10a, and the inside of the ventilation net M2 is stretched as shown in FIG. 5 (d). The sorting passage surface S is formed by partitioning the inner body 11 and the outer body 12. As shown in the rear view of FIG. 5C, in this embodiment, the vertical dimension of the outer body 12 is set to about 2/3 of the inner body 11, and the discharge chute 12c is provided below the outer body 12.
Further, as shown in FIG. 5A, a chute 16 is provided above the air guide tube 10d attached to the machine frame 10a, while a leaf supply port 11b and an air supply port 11c are formed in the lower part of the inner body 11. It is a thing.
Then, the discharge port 16a of the chute 16 and the leaf supply port 11b are in a communicating state, the air guide tube 10d is in a state of entering the air supply port 11c, and the discharge port 10e is directed diagonally upward inside the inner body 11. Is set to.
In this embodiment, two blowers 13 are provided, and each blower 13 is connected to one air guide tube 10d by a blower duct 15.
The sorting / removing device 1 having such a configuration can process the raw tea leaves A0 in the same manner as in the above-mentioned basic embodiment, but there is a risk that the tea leaves A0 may adhere to the inside of the ventilation duct 15. It has a structure suitable for treating a certain steamed leaf A1 or the like.

The sorting / removing device 1 described in this embodiment is configured as described above, and an operating mode of this device will be described below.
First, the blower 13 is activated, and the blown wattage W from the blower 13 is blown into the inner body 11 through the blower duct 15 and the air guide tube 10d.
Next, when the steamed leaf A1 discharged from the steamer 2 is put into the chute 16, the steamed leaf A1 is supplied into the inner body 11 via the discharge port 16a and the leaf supply port 11b, and the blown air W blown from the air guide tube 10d. Is blown up to the vicinity of the top of the inner body 11.
In addition to weakening the action of the blast W near the top of the heaven, the steamed leaves A1 outside the action range will fall. Then, the steamed leaf A1 that has fallen to the lower part of the inner body 11 is blown up to the vicinity of the upper part of the inner body 11 by the action of the blower W again, and while such movement is repeated, the size is less than a certain size. Only the cut leaf A4 passes through the sorting passing surface S, enters the outer body 12 as an unsuitable tea leaf A5, slides down the discharge chute 12c, and is appropriately collected in the collection bag 12b.

At this time, the steamed leaves A1 are cooled by removing the steamed dew by the action of the blower W, the overlapping leaves are separated, and the broken leaves are expanded to become the cooled leaves A2. The device 1 also functions as a tea-spraying cooling device.
Then, a part of the steamed leaves A1 that has fallen to the lower part in the inner body 11 further falls and is discharged to the outside of the inner body 11 and is sent to the next process such as a band type dryer 3 as a cooling leaf A2 by the conveyor C. ..
An example in which the sorting / removing device 1 functions as a tea-spraying cooling device more effectively will be described later.

[Various Examples of Inner Body and Outer Body]
Next, various examples of the inner body 11 and the outer body 12 will be described.
First, the perspective view shown in FIG. 6A is a modified example of the embodiment shown in FIG. 3, in which the sorting passage surface S formed by the ventilation net M2 is formed on the outer body 12.

Further, in the plan view shown in FIG. 6B, the pair of opposite side surfaces of the inner body 11 are formed by the ventilation net M2, and the remaining side surfaces and the upper surface are formed by the ventilation net M1. Then, in this embodiment, the outer cylinders 12 are provided on both side surfaces of the inner cylinder 11 formed by the ventilation net M2 to form the two selection passage surfaces S.

Further, the plan view shown in FIG. 6C is an example in which three side surfaces of the inner body 11 are formed of a ventilation net M2 to form a sorting passage surface S.
Furthermore, the plan view shown in FIG. 6D is an example in which the four side surfaces of the inner body 11 are formed of the ventilation net M2 to form the sorting passage surface S.

Furthermore, in the plan view shown in FIG. 6 (e), the plan shape of the inner body 11 is circular, and the entire circumference thereof is formed by the ventilation net M2 to form the sorting passage surface S, which is also viewed in plan so as to surround it. This is an embodiment in which the circular outer body 12 is configured by the ventilation net M1.

Furthermore, the plan view shown in FIG. 6 (f) is an embodiment in which a plurality of inner cylinders 11 are connected in series and an outer cylinder 12 is provided on the side of the inner cylinder 11.
In FIG. 6 (f), the outer cylinder 12 is provided on all the inner cylinders 11, but the outer cylinder 12 may be provided only on a part of the inner cylinders 11.
Such a tea-spraying cylinder 10 having an inner cylinder 11 and an outer cylinder 12 shown in FIG. 6 (f) is preferable to be applied to a sorting / removing device 1 which functions as a tea-scattering cooling device used in the production of tencha, which will be described later. It is a form.

[Sorting and removing device that functions as a tea-spraying cooling device used in Tencha production]
Hereinafter, in addition to sorting and removing unsuitable tea leaves A5, which are provided between the steamer 2 and the dryer 3 shown in FIG. 7, steamed dew is removed, steamed leaves A1 are cooled, overlapping leaves are separated, and broken leaves are developed. A sorting and removing device 1 that functions as a tea-spraying cooling device, which is used in the production of Tencha, will be described.
First, the sorting / removing device 1 shown in this embodiment is configured by combining the tea-spraying cylinder 10A having the configuration shown in FIG. 5 and the tea-spraying cylinders 10B, 10C, and 10D having the configurations shown in FIGS. Will be done.
The blower duct 15 connected to the air guide tube 10d in each of the tea shaving cylinders 10 is connected to the blower pipe 18 connected to the fireplace 17, of which the air guide pipes 10d in the tea shaving cylinders 10B, 10C and 10D are connected. A transfer chute 19 arranged below the inner body 11 is connected between the air pipe 18 and the air pipe 18.

Further, the steamer 2 is a device that steams raw tea leaves A0 to make steamed leaves A1, and in this embodiment, as an example, a rotary type device in which raw tea leaves A0 and steam are supplied into a rotary steaming cylinder. Will be adopted.

Further, as an example of the dryer 3, a band type device is adopted, and in this device, a transport band 31 having air permeability is provided in a multi-stage shape in the housing 30, and the inside of the housing 30. A heating unit 32 is provided at the lower part, and hot air is applied to the object to be transported by the transport band 31, so that the non-processed object is dried while maintaining its shape without applying a physical load. It is a device that can be used.

Then, the steamed leaves A1 supplied from the steamer 2 are processed into the cooled leaves A2 by the above-mentioned sorting and removing device 1. First, the steamed leaves A1 steamed by the steamer 2 and agglomerated are the tea-sprinkling cylinders. It is thrown into the chute 16 of 10A and supplied into the inner body 11 via the discharge port 16a and the leaf supply port 11b.
On the other hand, hot air at about 100 to 150 ° C. is blown into the air guide tube 10d in the tea-spraying cylinder 10A through the fireplace 17 as a blower W, and the steamed leaf A1 is blown from the discharge port 10e to blow air from the inner cylinder 11. It is blown up to the vicinity of the top of the sky.

In addition to weakening the action of the blast W near the top of the heaven, the steamed leaves A1 outside the action range will fall. The steamed leaf A1 that has fallen to the lower part of the inner body 11 is blown up to the vicinity of the upper part of the inner body 11 by the action of the blower W again, and while such movement is repeated, the size is less than a certain size. Only the cut leaves A4 pass through the sorting passage surface S, enter the outer body 12 as unsuitable tea leaves A5, and are appropriately collected.

On the other hand, among the steamed leaves A1 that have fallen to the lower part of the inner body 11, the steamed leaves A1 that have reached the inside of the transfer chute 19 without being affected by the blower W again are conveyed to the blower W sent from the blower pipe 18. Then, it is supplied into the inner cylinder 11 of the next tea-spraying cylinder 10B through the air duct 15 and the air guide pipe 10d, and is blown up to the vicinity of the top of the inner cylinder 11 to remove unsuitable tea leaves A5 such as cut leaves A4.
After that, the steamed leaves A1 are subjected to the same treatment in the tea leaves 10C and 10D. In this example, the steamed leaves A1 are sorted four times to remove unsuitable tea leaves A5 such as cut leaves A4. It will surely be done.
At this time, the steamed leaves A1 are cooled by removing the steamed dew by the action of the blower W, the overlapping leaves are separated, and the broken leaves are expanded to become the cooled leaves A2. The device 1 also functions as a tea-spraying cooling device.

Then, the cooled leaf A2 discharged from the tea-spraying cylinder 10D is supplied to the dryer 3 by a transport device such as a belt conveyor, and is subjected to a drying treatment to become a dried leaf A3.
At this time, if the fine pieces pass through the ventilation holes of the air-permeable transport band 31 and reach the heating unit 32 located below, it may cause a fire, but it is supplied from the sorting and removing device 1 of the present invention. Since the unsuitable tea leaf A5 is removed from the cooled leaf A2, such a situation can be avoided.

[Example in which a sorting / removing device is provided in the next stage of the blue-killing machine used for producing kamairicha]
Next, an example in which the sorting / removing device 1 is provided in the next stage of the blue-killing machine used for producing kamairicha will be described (not shown).
In the production of kamairicha, the activity of the oxidase contained in the raw tea leaf A0 is inactivated by roasting instead of steaming, and the variable roasted leaf is a blue-killing machine responsible for such a process. Examples include machines and roasting machines.
Then, when the treatment with a blue-killing machine is performed, for example, in the case of raw tea leaf A0 suffering from charcoal disease, the affected part is more likely to be burnt than the non-affected part, and the surrounding area including the burned part during the subsequent transfer or the tea making process. Crushes into crushed leaves (fine pieces).
Therefore, by providing the sorting and removing device 1 of the present invention in the next stage of the blue killing machine, it is possible to sort and remove the crushed leaves as unsuitable tea leaves A5, eliminate the affected part, and prevent deterioration of the quality of the product tea. Is.

1 Sorting and removing device 10 Tea shavings 10A Tea shavings 10B Tea shavings 10C Tea shavings 10D Tea shavings 10a Machine frame 10b Hook 10c Air guide tube base 10d Air guiding tube 10e Discharge port 11 Inner body 11a Loop 11b Leaf feeding port Air port 12 Outer body 12a Discharge port 12b Recovery bag 12c Discharge chute 13 Blower 14 Leaf feeder 15 Blower duct 16 Chute 16a Discharge port 17 Fire furnace 18 Blower pipe 19 Transfer chute 2 Steamer 3 Dryer 30 Housing 31 Transport zone 32 Heating section A0 Raw tea leaves A1 Steamed leaves A2 Cooled leaves A3 Dried leaves A4 Cut leaves A5 Inappropriate tea leaves

C Conveyor F surface Fastener M Ventilation net M1 Ventilation net M2 Ventilation net S Sorting pass surface W Blower

Claims (4)

It is a device that blows up the tea leaves to be treated from the bottom to the top on the breathable tea leaves arranged in a tower shape to sort and remove unsuitable tea leaves.
The tea-spraying cylinder has a multi-layer structure consisting of an inner cylinder and one or more outer cylinders arranged outside the inner cylinder.
Inappropriate tea leaves characterized in that the boundary surface between the inner body and the outer body is a sorting passage surface formed by a ventilation net having a coarser mesh than the ventilation net constituting the other surface of the tea-spraying cylinder. Sorting and removing device.
The inner and outer cylinders constituting the tea-spraying cylinder are detachable from each other.
The unsuitable tea leaf sorting / removing device according to claim 1, wherein a member for hanging is provided on the upper part of the tea-spraying body.
It is provided between the steamer and the dryer, and in addition to sorting and removing unsuitable tea leaves, it is used for the production of tencha by removing steamed dew, cooling steamed leaves, separating overlapping leaves, and developing broken leaves. The unsuitable tea leaf sorting / removing device according to claim 1 or 2, wherein the tea leaves are sorted and removed.
The unsuitable tea leaf sorting / removing device according to claim 3, wherein a plurality of the tea leaves are connected in series.

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