JP2009291160A - Tea raw leaf-treating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device having various functions by a single unit. <P>SOLUTION: The tea raw leaf-treating device includes a conveyor having a water-permeable net extended thereon, a nearly sealed tea raw leaf-treating chamber formed in the upper part of the conveyor and for allowing the tea raw leaves to pass, a hot water-feeding means for feeding hot water enabling the hot water to be blown on the tea raw leaves, a steam-feeding means for feeding steam enabling the steam to be blown to the tea raw leaves, and a blowing means for blowing the hot water or the steam to the tea raw leaves, and blows the hot water or the steam on the tea raw leaves by selecting them. With this configuration, a caffeine-reducing treatment of the tea raw leaves is carried out by blowing the hot water on the tea raw leaves, and a steaming treatment of the tea raw leaves is carried out by blowing the steam to the tea raw leaves to enable the caffeine-reducing treatment and the steaming treatment of the tea raw leaves to be carried out selectively. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an apparatus for performing treatment by blowing hot water, steam, or room temperature water on fresh tea leaves.

Patent Document 1 invents a “raw tea leaf low caffeine treatment apparatus” that reduces caffeine in fresh tea leaves. Further, Patent Document 2 invents a band-type steamer that heats fresh tea leaves, and Patent Document 3 invents an apparatus for removing impurities adhering to fresh tea leaves. Conventionally, these devices seem to be similar in configuration, but they are not common, and a dedicated device must be provided depending on the purpose, and equipment costs were required to prepare the necessary devices. .
JP 2006-296355 A JP 2006-314304 A JP 2004-173616 A

  The reduction of caffeine in fresh tea leaves using the device of Patent Document 1 is very special compared to conventional sencha, and the amount of transaction of manufactured tea leaves is still small, so that capital investment is required to introduce the device. There was something difficult.

  The steamer for steaming tea leaves has a band-steaming steamer as in Patent Document 2, but there is also a body-rotating steamer, which uses both a body-steaming steamer and a belt-steaming steamer. If you want to, you have to buy both steamers because the configuration of the barrel-type steamer and the band-type steamer are completely different.

  Processing as in Patent Document 3 is not performed so much at present, and it is difficult to purchase an apparatus for processing that is not common.

  As described above, it is an object of the present invention to provide an apparatus having various functions with one apparatus.

In order to solve the above problems, the first means of the present invention is:
A conveyor with a water-permeable net,
A substantially hermetic tea leaf treatment chamber formed on the conveyor for the passage of fresh tea leaves;
Hot water supply means for supplying hot water to spray hot water on fresh tea leaves;
Steam supply means for supplying steam to spray steam on fresh tea leaves;
Providing spraying means to spray hot water or steam on fresh tea leaves,
Select hot water and steam to spray fresh tea leaves.
As a result, the tea leaves are caffeinated by spraying hot water on the fresh tea leaves, and steaming heat treatment is performed on the fresh tea leaves by spraying steam on the fresh tea leaves. Heat treatment can be selectively performed.

The second means of the present invention is:
A conveyor with a water-permeable net,
A substantially hermetic tea leaf treatment chamber formed on the conveyor for the passage of fresh tea leaves;
Hot water supply means for supplying hot water to spray hot water on fresh tea leaves;
Room temperature water supply means for supplying room temperature water to spray fresh water on fresh tea leaves;
With spraying means to spray hot water or room temperature water on fresh tea leaves,
Select hot water and room temperature water and spray on fresh tea leaves.
As a result, low temperature caffeine treatment is performed by blowing hot water on fresh tea leaves, and fresh tea leaves are washed (impurity removal treatment) by spraying room temperature water on fresh tea leaves. A low caffeine treatment and a washing treatment (impurity removal treatment) can be selectively performed.

The third means of the present invention is:
A conveyor with a water-permeable net,
A substantially hermetic tea leaf treatment chamber formed on the conveyor for the passage of fresh tea leaves;
Steam supply means for supplying steam to spray steam on fresh tea leaves;
Room temperature water supply means for supplying room temperature water to spray fresh water on fresh tea leaves;
Providing spraying means for spraying steam or room temperature water on fresh tea leaves,
Select steam and room temperature water and spray on fresh tea leaves.
As a result, steaming heat is applied to fresh tea leaves to perform steam heat treatment of fresh tea leaves, and normal temperature water is sprayed to fresh tea leaves for cleaning treatment (impurity removal treatment). The treatment (impurity removal treatment) can be selectively performed.

The fourth means of the present invention is:
A conveyor with a water-permeable net,
A substantially hermetic tea leaf treatment chamber formed on the conveyor for the passage of fresh tea leaves;
Hot water supply means for supplying hot water to spray hot water on fresh tea leaves;
Steam supply means for supplying steam to spray steam on fresh tea leaves;
Room temperature water supply means for supplying room temperature water to spray fresh water on fresh tea leaves;
Providing spraying means for spraying hot water, steam or room temperature water on fresh tea leaves,
Select hot water, steam and room temperature water and spray on fresh tea leaves.
In this way, the hot tea leaves are sprayed with hot water to reduce the caffeine of the fresh tea leaves, the steam is blown onto the fresh tea leaves, the raw tea leaves are steamed, and the fresh tea leaves are sprayed with room temperature water. Thus, the raw tea leaves can be selectively subjected to low caffeine treatment, steaming heat treatment, and washing treatment (impurity removal treatment).

The fifth means of the present invention is the first, third or fourth means,
When steam is selected and sprayed on fresh tea leaves, a space adjustment plate is attached to the upper part of the fresh tea processing chamber.
Thereby, steam can be used efficiently.

The sixth means of the present invention is the first or fourth means,
Hot water is heated using steam sprayed on fresh tea leaves as a heat source.
Thereby, hot water can be heated efficiently.

  A single device can be used by selecting from a plurality of functions according to the purpose of use, and a user can select and use a necessary processing method when necessary, and production according to demand can be performed. And there is an effect that the capital investment can be minimized. Regardless of which treatment method is selected, the fresh tea leaf treatment chamber that continuously transfers fresh tea leaves is not soiled and can be cleaned easily and in a short time, and it has the effect of not burdening the producer in terms of maintenance management. is there.

  This will be described with reference to the drawings. Reference numeral 1 denotes an endless net conveyor, which is made of stainless steel in this embodiment, but any material may be used as long as it has a water-permeable shape such as a net, resin, cloth, or the like. Reference numeral 2 denotes a hopper for feeding fresh tea leaves onto the net conveyor 1 while storing an appropriate amount of fresh tea leaves installed on the net conveyor 1, and 3 is a conveyor for supplying fresh tea leaves to the hopper 2. Reference numeral 4 denotes a green tea leaf confirmation sensor, and a photoelectric sensor is used in this embodiment. The raw tea leaf confirmation sensor 4 detects that a predetermined amount of fresh tea leaves supplied from the conveyor 3 is accumulated in the hopper 2, stops the operation of the conveyor 3 when the predetermined amount is accumulated, and operates the conveyor 3 when no tea leaf is detected. To resume. Reference numeral 5 denotes a scraping and leveling device that keeps the thickness of fresh tea leaves fed from the hopper 2 constant. Reference numeral 6 denotes a fresh tea leaf treatment room, which is a space where hot water, steam or room temperature water is applied to fresh tea leaves, and a net conveyor 1 is stretched.

  The spraying means for spraying hot water, steam, or room temperature water on fresh tea leaves will be described. Reference numerals 7, 7A1, and 7A2 denote flow path pipes that are installed on the net conveyor 1 at appropriate intervals. Reference numeral 8A denotes a nozzle, which is provided in the flow path pipes 7A1 and 7A2 so as to eject hot water toward the net conveyor 1. Nozzle 8A has a fan-shaped jet shape in a wide range, and jets hot water or steam or normal temperature water to fresh tea leaves, and is provided so that hot water or steam or normal temperature water hits fresh tea leaves without any gaps (fan-shaped jet shape If it can be applied to hot tea, steam or room temperature water evenly on the fresh tea leaves, other spout shapes may be used). 7B is a flow path pipe provided below the net conveyor 1, and 8B is a nozzle provided on the flow path pipe 7B, and heats from the lower half toward the fresh tea leaves on the net conveyor 1 from below in the first half of the transfer surface. Provide water, steam or room temperature water. A steel plate 9 is disposed under the net conveyor 1 so as to be substantially in contact with the net conveyor 1 in the latter half of the transfer surface. When performing the low caffeine treatment, the hot water ejected from the nozzle 8A is immersed on the steel plate 9, and the tea leaves are transferred while being immersed in the hot water on the steel plate 9 while being transferred on the net conveyor 1. As a result, caffeine can be efficiently eluted, and an efficient low caffeine treatment can be performed without increasing the pressure. Even when steam is used, there is an effect of reducing the space volume.

  Reference numeral 10 denotes a drive motor for driving the net conveyor 1, and an inverter 34 adjusts the number of rotations of the drive motor 10 to adjust the transfer speed of the net conveyor 1, that is, the tea leaf processing time. Reference numeral 16 denotes a temperature sensor, which is provided at a position where the hot water from the nozzle 8A hits securely. The temperature sensor 16 measures the temperature of the hot water and adjusts the temperature of the hot water.

  Reference numeral 39 denotes a water collecting plate provided below the fresh tea leaf processing chamber 6, and collects hot water or room temperature water ejected from the nozzles 8A and 8B. 59 and 60 are valves, 13 is a pipe, and 56 is a drain pipe. Hot water or normal temperature water collected by the water collecting plate 39 opens the valves 59 and 60 as necessary, and if the valve 59 is opened, the drain pipe 56 is opened. If the valve 59 is closed and the valve 60 is opened, the flow flows to the pipe 13. 41 is a conveyor for conveying the discharged tea leaves to the next tea making apparatus (not shown).

  37 is a fresh water tank, 52 is a water pipe, and 53 is a valve. The valve 53 is opened, and water is stored in the fresh water tank 37 from the water pipe 52. Reference numeral 11 denotes a fresh water pump, and reference numeral 12 denotes a fresh water nozzle. The fresh water pump 11 draws fresh water from the fresh water tank 37, passes through the fresh water pipe 42, and jets from the fresh water nozzle 12 to the tea leaves. In this embodiment, eight fresh water nozzles 12 are provided. The fresh water ejected from the fresh water nozzle 12 flows to the water collecting plate 39 and merges with the hot water ejected from the nozzles 8A and 8B. 35 is a ball tap, and the fresh water in the fresh water tank 37 keeps a predetermined water level. If the predetermined water level can be maintained, the ball tap need not be used. In this embodiment, the fresh water tank 37 is provided. However, the fresh water tank 37 may not be provided, and the water pipe 52 may be directly connected to the fresh water pipe 42 if there is no fluctuation in water pressure. 66 is a valve, and 67 is a pressure gauge. By opening and closing the valve 66, the fresh water nozzle 12 is ejected. 45 is a drain pipe and 46 is a valve. When water is discharged from the fresh water tank 37, the valve 46 is opened and discharged to the drain groove 58.

  36 is an air blower outlet, 24 is a blower, and 40 is a duct. The air blower outlet 36 is provided behind the fresh water nozzle 12 and is installed toward the tea leaves. The air generated in the blower 24 is blown from the air outlet 36 to the tea leaves through the duct 40.

  A hot water tank 17 stores hot water. 18 is a boiler, 43 is a steam pipe, and 19 is a steam injection hole. The steam injection hole 19 is opened at a part of the tip of the steam pipe 43, and that part is immersed in the hot water tank 17, and steam generated by the boiler 18 is generated. It ejects from the steam injection hole 19. 54 on the steam pipe 43 is a pressure gauge, 55 is a valve, and these adjust the steam feed condition. A hot water tank temperature sensor 20 measures the temperature of the hot water in the hot water tank 17. Reference numeral 14 denotes a hot water pump. The hot water pump 14 pumps up the hot water and sends the hot water through the flow path pipe 7 to the flow path pipes 7A1, 7A2, 7B and the nozzles 8A, 8B. Reference numeral 15 is an inverter, and 47 is a hot water flow meter for the flow path pipe 7. This also changes the hot water pressure. 48 is a pressure gauge for the flow path pipes 7A1 and 7B, 49 is a valve for the flow path pipes 7A1 and 7B, 50 is a pressure gauge for the flow path pipe 7A2, and 51 is a valve for the flow path pipe 7A2. The valves 49 and 51 are opened and closed as necessary to eject water. The pressure gauges 48 and 50 are for checking the pressure of the hot water and adjust the pressure of the hot water to a desired value.

  A transparent glass tube 38 is provided in a U shape on the side wall of the hot water tank 17. The glass tube 38 is transparent in order to monitor the quality and level of hot water. Reference numeral 28 denotes a lower limit water level sensor, and reference numeral 30 denotes an upper limit water level sensor, which is used to keep the amount of hot water constant or to replace hot water. 44 is a drain pipe, and 27 is a drain electromagnetic valve. When the hot water is replaced, the drain electromagnetic valve 27 is opened to drain water from the drain pipe 44. The water supply electromagnetic valve 29 and the drainage electromagnetic valve 27 do not need to be electrical if the hot water is not automatically replaced, and may not be electromagnetic valves as long as they can be automatically moved. In the present embodiment, the hot water tank 17 is used. However, if hot water can be supplied, the hot water can be supplied directly from the outside without using the hot water tank 17, or heating by electric heat or direct fire is used instead of heating by steam. A hot water tank having a different structure may be used.

  Reference numeral 23 denotes a filtration tank, which is installed on the hot water tank 17 in this embodiment, but hot water from the filtration tank 23 may be transported by piping instead of being on the hot water tank 17. In the filtration tank 23, hot water ejected from the nozzles 8 </ b> A and 8 </ b> B is collected on the water collecting plate 39 and is allowed to flow above the filter medium in the filtration tank 23 through the pipe 13. Reference numeral 21 denotes a filter, which may be a single sheet, but a plurality of sheets are more efficient, and are detachably installed in the filtration tank 23. In the case of a plurality of sheets, they are installed so as to become finer from top to bottom. In this embodiment, two sheets are installed, the upper is a rough wire mesh of about 40 mesh, and the lower is a fine wire mesh of about 250 mesh. 22 is an adsorptive filter material, and in this embodiment, liquid phase coconut shell-based granular activated carbon, which is a kind of activated carbon, is available at low cost and can be regenerated. I do not care. Reference numeral 31 denotes an overflow water channel, which is provided above these filter media. An overflow sensor 32 is provided in the middle of the overflow water channel 31. If hot water or normal temperature water passes through the overflow water channel 31, it is detected by the overflow sensor 32, and it can be determined that one of the filter media (the filter 21 and the adsorption filter material 22) is clogged. . In addition, for example, a method of installing an electrode rod in the overflow water channel 31 with the filtration tank 23 as the ground side may be used.

  Reference numeral 33 denotes a fresh tea leaf cutting machine, which is provided in front of the hopper 2 and cuts fresh tea leaves before putting the fresh tea leaves into the hopper 2. Depending on the size (bulk) of fresh tea leaves, it is not necessary to pass the fresh tea leaf cutting machine 33, so it is installed as necessary.

  The movement of the apparatus as described above will be described. The fresh tea leaves supplied from the conveyor 3 are accumulated in the hopper 2 and the amount of fresh tea leaves gradually increases when the supply amount exceeds the processing amount. When the tea leaf confirmation sensor 4 detects the fresh tea leaves, the conveyor 3 stops. . If the amount of fresh tea leaves in the hopper 2 decreases and the tea leaf confirmation sensor 4 does not sense it, fresh tea leaves are supplied from the conveyor 3 again. In this way, the amount of fresh tea leaves is made constant. When fresh tea leaves grow large, the fresh tea leaf cutting machine 33 is used to reduce the bulk. If the fresh tea leaves are not large, the fresh tea leaf cutting machine 33 is unnecessary. The fresh tea leaf passage height of the fresh tea leaf treatment chamber 6 is determined in advance to a predetermined size. If the bulk of the fresh tea leaf is large, not only a predetermined treatment amount can be obtained but also the ejection angle from the nozzles 8A and 8B. It becomes difficult to obtain a uniform treated tea leaf. The sprocket 62 connected by the chain 63 is rotated from the drive motor 10 whose rotation speed is changed by the inverter 34, and the raw tea leaves continuously conveyed by the water-permeable net conveyor 1 are appropriately thickened by the scraping and leveling device 5. Then, it is transported to the fresh tea processing chamber 6 while passing through the flexible shut-off curtain 73.

  The case where hot water is selected by the process of reducing caffeine of fresh tea leaves will be described. First, preparation for supplying hot water by the hot water supply means is performed. In order to supply steam as a heat source of hot water, the burner 68 of the boiler 18 is operated, the valve 69 is closed, and the valve 55 is opened. In addition, the valves 49, 51, and 70 are opened in order to blow hot water onto fresh tea leaves. The water supply electromagnetic valve 29 that connects the hot water tank 17 and the water pipe 52 opens, and water is supplied until the upper limit water level sensor 30 is activated, and the hot water pump 14 is operated. In order to circulate the hot water after treatment, the valve 59 is closed and the valve 60 is opened. The valves 53 and 66 for supplying fresh water are opened, and the blower 24 for supplying air to be blown is operated.

  The hot water passes through the flow pipes 7, 7 A 1, 7 A 2, 7 B and the water collecting plate 39, passes through the filtration tank 23, and returns to the hot water tank 14. During this time, the water level drops and water is supplied again. The boiler 18 generates steam by the burner 68, and the generated steam passes through the steam pipe 43, blows steam into the water from the steam injection hole 19 in the hot water tank 17, and heats it. On the operation panel 74, the value of the hot water tank temperature sensor 20 is set to a range of 90 degrees or more and less than 100 degrees, and if the hot water tank temperature sensor 20 reaches the set temperature, the combustion amount of the burner 68 is reduced or stopped. To do. This is selected according to the water temperature, and when the water temperature is high such as 2 teas 3 teas, the combustion is stopped. If the water temperature at Ischa is low, low combustion is continued. If the thermometer 16 of the tea fresh leaf treatment chamber 6 reaches a range of 90 degrees or more and less than 100 degrees, fresh tea leaves are supplied. In the tea fresh leaf treatment chamber 6, the gauge pressure 0.03-0.1 MPa from the nozzles 8A, 8B, fresh tea leaves 150-250 liters of hot water per kg is sprayed from the vertical direction or upward for a predetermined time by the hot water pump 14 to elute caffeine into the hot water to reduce the amount of caffeine in fresh tea leaves and oxidase Is inactivated.

  The tea leaves being processed are gradually softened and are brought into close contact with the surface tension of the hot water to form a plate shape. Therefore, the steel plate 9 is stretched so as to be in contact with the net conveyor 1 from an appropriate position in the tea fresh leaf processing chamber 6. Hot water is applied only from above the treated tea leaves, and hot water is not dropped by the steel plate 9 below the treated tea leaves, and the hot water is immersed between the treated tea leaves below and the net conveyor 1 to uniformly reduce caffeine. I can do it. The used hot water returns to the hot water tank 17 after passing through a plurality of filters 21 that gradually become finer in the filtration tank 23 and an adsorption filtering material 22 such as activated carbon. When the filter 21 and the adsorbent filter medium 22 are clogged due to long-time operation, the circulating hot water flows into the overflow water channel 31, and an alarm is given from the operation panel 74 to the operator by the signal of the overflow sensor 32 to wash the filter medium. Prompt. The hot water whose temperature has been lowered is heated by the jetted steam in the hot water tank 17 and is heated to a predetermined temperature.

  The tea leaves subjected to the hot water treatment are sprayed with fresh water from the fresh water pump 11 with a predetermined amount of water and a predetermined pressure from the fresh water nozzle 12, and the attached circulating water is washed away while cooling the tea leaves. The fresh water tank 37 is maintained at the water supply and water level by the ball tap 35 connected from the water pipe 52. The used fresh water passes through the water collecting plate 39 and merges with the circulating hot water. The treated tea leaves adhering to the fresh water are blown with air from the blower 24 through the high-pressure air outlet 36 to blow off the adhering water and are discharged to the outside as treated tea leaves. This blown water also joins the circulating hot water.

  The tea leaves that have been processed are discharged to the conveyor 41, transported to the next process by a plurality of conveyors, subjected to a pre-drying process (not shown), and after removing excess water from the processed tea leaves, it passes through a well-known crude tea manufacturing process. It becomes low caffeine rough tea.

  Next, the case where the use of steam is selected by steaming heat treatment of fresh tea leaves will be described. First, a space adjusting plate 71 that can be freely attached and detached is inserted in advance, and preparation for supplying steam by the steam supply means is made. The valves 69 and 49, which are steam passageways, are opened, and the valves 55, 70 and 51 are closed. Since hot water is unnecessary, the water supply electromagnetic valve 29 and the hot water pump 14 are stopped. Since fresh water is also unnecessary, the valves 53 and 66 are closed and the fresh water pump 11 is stopped. Open the valve 26 slightly, and drain the drain in the pipe. Since there is no need to circulate hot water, the valve 60 is closed and the valve 59 is opened. The burner 68 of the boiler 18 is operated.

  Since the valve 55 is closed, the steam generated from the boiler 18 does not enter the hot water tank 17, passes through the valve 69, passes through the valve 49 from the channel pipe 7 and flows through the nozzle 8A of the channel pipe 7A1. Steam is jetted from the nozzle 8B of the channel pipe 7B toward the green tea leaves from the vertical direction. The amount of combustion of the burner 68 is adjusted by the steam flow meter 25 so that a predetermined steam amount is obtained. The amount of steam used is 0.4 to 1 kg of low-pressure saturated steam per 1 kg of fresh tea leaves. The steam pressure is in the range of 0 to 0.05 MPa gauge pressure, steam is applied to the fresh tea leaves that are continuously conveyed to the fresh tea leaf treatment chamber 6, and the steam heat treatment time is used in the range of 30 seconds to 180 seconds. The combustion amount of the burner 68 is adjusted again and again while looking at the value of the steam flow meter 25 so that the thermometer 16 during the steaming heat treatment reaches a predetermined temperature.

  Fresh tea leaves inactivate oxidase within a few seconds of contact with steam, soften and halve their thickness. If the thickness is halved and there is a lot of space in the subsequent tea leaf treatment chamber 6, excess steam passes through the space without coming into contact with the tea leaf, and the steaming degree of the treated tea leaf cannot be maintained. Therefore, the space is narrowed by the upper space partition wall 72 and the detachable space adjustment plate 71, the steaming degree is advanced by surplus steam coming into contact with the treated tea leaves, and a steamed heat-treated tea leaf can be obtained. A product with high quality of crude tea can be obtained. The tea leaves thus treated are discharged to the conveyor 41 and become crude tea through a known rough tea manufacturing process.

  Next, the case where normal temperature water is selected by the cleaning process (impurity removal process) of fresh tea leaves will be described. Prepare to supply normal temperature water by the normal temperature water supply means. Since the supply of steam is unnecessary, the valves 69 and 55 are closed, and the burner 68 of the boiler 18 is stopped. In order to supply normal temperature water, the water supply electromagnetic valve 29 is opened to connect the hot water tank 17 and the water pipe 52, water is supplied until the upper limit water level sensor 30 is activated, the valves 49, 51, 70 are opened, and the hot water pump 14 To drive. In order to circulate room temperature water, the valve 60 is opened.

  It passes through the flow pipes 7, 7 A 1, 7 A 2, 7 B and the water collecting plate 39, passes through the filtration tank 23, and returns to the hot water tank 14. Since the water level drops during this time, water is supplied again. By supplying fresh tea leaves, in the fresh tea leaf processing chamber 6, room temperature water is required to be equal to or more than 200 liters per kg of fresh tea leaves from the nozzle 8, and by using a water pressure in the range of gauge water pressure of 0.05 to 0.1 MPa. If it is set to such an extent that the green tea leaves are shaken, it will be sprayed with room temperature water for a predetermined time without any unevenness to clean the green tea leaves. The room-temperature water used passes through a plurality of filters 21 that gradually become finer in the filtration tank 23 and an adsorption filter material 22 such as activated carbon, and then returns to the hot water tank 17. When the filter 21 and the adsorbent filter medium 22 are clogged due to long-time operation, the circulating water flows into the overflow water channel 31, and an alarm is given from the operation panel 74 to the operator by the signal of the overflow sensor 32 to wash the filter medium. Prompt.

  The fresh tea leaves that have been washed are sprayed from the fresh water pump 11 with a predetermined amount of water, a predetermined pressure, and a predetermined flow rate from the fresh water nozzle 12, and the attached circulating water is washed away. The fresh water tank 37 is maintained at the water supply and water level by the ball tap 35 connected from the water pipe 52. The used fresh water passes through the water collecting plate 39 and joins with the circulating water. The treated tea leaves to which the fresh water adheres are blown with air from the blower 24 through the air outlet 36 to blow off the adhered water and are discharged out of the apparatus as treated tea leaves. This blown water also joins the circulating hot water.

  The tea leaves that have been processed are discharged to the conveyor 41, conveyed to the next process by a plurality of conveyors, subjected to steaming heat treatment (not shown), and pass through a well-known crude tea manufacturing process to become crude tea.

The front schematic of this invention. The front view of the processing apparatus of this invention. The front view of the filtration tank and hot water tank of this invention. The top view of the processing apparatus of this invention. The figure which showed the rough tea manufacturing method of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Net conveyor 2 Hopper 3 Conveyor 4 Tea fresh leaf confirmation sensor 5 Scraping leveling device 6 Tea fresh leaf processing chamber 7 Channel pipe 7A1 Channel pipe (on the inlet side)
7A2 Channel pipe (on outlet side)
7B Channel pipe (bottom)
8A Nozzle 8B Nozzle 9 Steel plate 10 Drive motor 11 Fresh water pump 12 Fresh water nozzle 13 Piping 14 Hot water pump 15 Inverter (hot water pump)
DESCRIPTION OF SYMBOLS 16 Temperature sensor 17 Hot water tank 18 Boiler 19 Steam injection hole 20 Hot water tank temperature sensor 21 Filter 22 Adsorption filter material 23 Filtration tank 24 Blower 25 Steam flow meter 26 Drain valve 27 Drain solenoid valve 28 Lower limit water level sensor 29 Water supply solenoid valve 30 Upper limit Water level sensor 31 Overflow channel 32 Overflow sensor 33 Brown fresh leaf cutting machine 34 Inverter (drive motor)
35 Ball tap 36 High pressure air outlet 37 Fresh water tank 38 Glass tube 39 Drain plate 40 Duct 41 Conveyor 42 Fresh water pipe 43 Steam pipe 44 Drain pipe (hot water tank)
45 Drain pipe (fresh water tank)
46 Valve (Clear water tank drain)
47 Hot water flow meter 48 Pressure gauge 49 Valve 50 Pressure gauge 51 Valve 52 Water pipe 53 Valve (Water supply)
54 Pressure gauge (steam)
55 Valve (steam)
56 Drainage pipe 57 Drainage groove 58 Drainage groove 59 Valve (drainage)
60 Valve (circulation)
61 Frame 62 Sprocket 63 Chain 64 Drain pipe (overflow)
65 Drain pipe (overflow)
66 Valve (Shimizu)
67 Pressure gauge 68 Burner 69 Valve (change of flow path)
71 Spatial adjustment plate 72 Upper partition wall 73 Shut-off curtain 74 Operation panel

Claims (6)

A conveyor with a water-permeable net,
A substantially hermetic tea leaf treatment chamber formed on the conveyor for the passage of fresh tea leaves;
Hot water supply means for supplying hot water to spray hot water on fresh tea leaves;
Steam supply means for supplying steam to spray steam on fresh tea leaves;
Providing spraying means to spray hot water or steam on fresh tea leaves,
A fresh tea leaf treatment apparatus, wherein hot water and steam are selected and sprayed on fresh tea leaves. A conveyor with a water-permeable net,
A substantially hermetic tea leaf treatment chamber formed on the conveyor for the passage of fresh tea leaves;
Hot water supply means for supplying hot water to spray hot water on fresh tea leaves;
Room temperature water supply means for supplying room temperature water to spray fresh water on fresh tea leaves;
With spraying means to spray hot water or room temperature water on fresh tea leaves,
A fresh tea leaf treatment apparatus characterized in that hot water and room temperature water are selected and sprayed onto fresh tea leaves. A conveyor with a water-permeable net,
A substantially hermetic tea leaf treatment chamber formed on the conveyor for the passage of fresh tea leaves;
Steam supply means for supplying steam to spray steam on fresh tea leaves;
Room temperature water supply means for supplying room temperature water to spray fresh water on fresh tea leaves;
Providing spraying means for spraying steam or room temperature water on fresh tea leaves,
A fresh tea leaf treatment device characterized by selecting steam and room temperature water and spraying it on fresh tea leaves. A conveyor with a water-permeable net,
A substantially hermetic tea leaf treatment chamber formed on the conveyor for the passage of fresh tea leaves;
Hot water supply means for supplying hot water to spray hot water on fresh tea leaves;
Steam supply means for supplying steam to spray steam on fresh tea leaves;
Room temperature water supply means for supplying room temperature water to spray fresh water on fresh tea leaves;
Providing spraying means for spraying hot water, steam or room temperature water on fresh tea leaves,
A fresh tea leaf treatment apparatus characterized in that hot water, steam and room temperature water are selected and sprayed onto fresh tea leaves.   5. The fresh tea leaf processing apparatus according to claim 1, wherein a space adjusting plate is attached to the upper part of the fresh tea leaf processing chamber when steam is selected and sprayed on the fresh tea leaf.   The apparatus for treating fresh tea leaves according to claim 1 or 4, wherein hot water is heated using steam sprayed on fresh tea leaves as a heat source.

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