JP2017079689A - Furnace for drying powdered green tea - Google Patents

Furnace for drying powdered green tea Download PDF

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JP2017079689A
JP2017079689A JP2015214511A JP2015214511A JP2017079689A JP 2017079689 A JP2017079689 A JP 2017079689A JP 2015214511 A JP2015214511 A JP 2015214511A JP 2015214511 A JP2015214511 A JP 2015214511A JP 2017079689 A JP2017079689 A JP 2017079689A
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tea
drying
drying chamber
flue
green tea
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JP6810322B2 (en
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学 狩野
Manabu Kano
学 狩野
康哲 鈴木
Yasutetsu Suzuki
康哲 鈴木
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Terada Seisakusho Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a furnace for drying powdered green tea which is suitable for drying of powdered green tea, and a device for producing powdered green tea in which a finished product can be installed without an assembly operation by stacking bricks with a long time in a tea manufacture plant, and powdered green tea having unique furnace aroma can be produced.SOLUTION: There is provided a furnace for drying powdered green tea in which first means is constituted of a combustion part 16 for generating combustion air, a flue 14 for introducing the combustion air generated in the combustion part 16, air permeable endless transport bodies 32A, 32B, 33A and 33B, and drying chambers 11, 21 and 31 surrounding the transport bodies.SELECTED DRAWING: Figure 3

Description

本発明は抹茶の原料となる碾茶を製造する装置に関するものである。   The present invention relates to an apparatus for producing strawberry tea as a raw material for matcha tea.

碾茶とは、覆い下で栽培された茶生葉を蒸した後、揉まずに乾燥したものであり、抹茶の原料となる。形状は葉が展開して透き通るように薄く、色沢は鮮緑色、香味は独特の炉の香りがある。   Boiled tea is made by steaming fresh tea leaves grown under the cover and then dried without squeezing it, and is the raw material for matcha tea. The shape is thin so that the leaves unfold, and the color is bright green and the flavor has a unique furnace scent.

従来の碾茶の製造は、蒸熱71→散茶冷却72→乾燥73→葉と茎の分離→仕上げ乾燥となっている。乾燥は炉でおこなうことも特徴であり、独特の香りはこの乾燥炉によってつけられる。乾燥をおこなう乾燥炉は、長さ約10〜15メートル、幅約2メートル、高さ約2〜4メートルの大型である(図6参照)。更に、燃焼部74を地下に備えているため、長さ約10〜15メートル、幅約2メートル、深さ約1メートル程度のピット75(くぼみ)を設けている。   The production of conventional tea is steaming heat 71 → green tea cooling 72 → drying 73 → separation of leaves and stems → finish drying. It is also characterized by drying in an oven, and a unique aroma is given by this oven. The drying oven for drying is a large size of about 10 to 15 meters in length, about 2 meters in width, and about 2 to 4 meters in height (see FIG. 6). Furthermore, since the combustion part 74 is provided in the basement, a pit 75 (recess) having a length of about 10 to 15 meters, a width of about 2 meters, and a depth of about 1 meter is provided.

上記の乾燥炉は、200度を超える高温となるため、耐熱性と保温性のあるレンガによって側壁を構成している。そのため、乾燥炉の製造は、乾燥炉を設置する製茶工場(現場)に部品(レンガを含む)を運搬して、製茶工場で部品の組立てや側壁のレンガの積み上げをしている。   Since the drying oven has a high temperature exceeding 200 ° C., the side walls are made of heat-resistant and heat-retaining bricks. Therefore, in the manufacture of a drying furnace, parts (including bricks) are transported to a tea factory (site) where the drying furnace is installed, and the parts are assembled and bricks on the side walls are stacked at the tea factory.

上記の乾燥炉は、地下に燃焼部を備えており、燃焼部の燃焼空気を煙道にて乾燥炉内を通過させる。煙道は、地下の燃焼部から徐々に上へ向かうように配置されており、茶葉を最下段に投入し、最下段で乾燥した茶葉を最上段へ吹き上げて、更に乾燥している。   Said drying furnace is provided with the combustion part in the underground, and the combustion air of a combustion part is made to pass through the inside of a drying furnace by a flue. The flue is arranged so as to gradually go up from the underground combustion part, and the tea leaves are put into the lowermost stage, the dried tea leaves are blown up to the uppermost stage, and further dried.

本出願人は、特許文献1のような碾茶用乾燥装置を考案していた。この碾茶用乾燥装置は、送風による乾燥であった。   The present applicant has devised a tea-tea drying apparatus such as that disclosed in Patent Document 1. This tea tea drying apparatus was drying by air blowing.

実開平4−80382号公報Japanese Utility Model Publication No. 4-80382

従来の乾燥炉は、燃焼部が最下段で地下のためピットが必要となるが、ピットを掘ることは大掛かりな作業であった。また、側壁がレンガであるため、レンガを積み上げるという製茶工場での作業が多かった。そして、装置が大型のために更に施工時間が長くかかるとともに、特別な技術を要する作業者(職人)が必要であった。   Conventional drying furnaces require a pit because the combustion section is at the bottom and is underground, but digging the pit was a major operation. In addition, because the side walls are made of bricks, there were many operations at the tea factory where bricks were stacked. And since the apparatus is large, it takes much longer to construct and requires an operator (craftsman) who requires special techniques.

特許文献1は、送風による乾燥であり、仕上げ乾燥には良好であるが、従来の乾燥炉とは茶葉の乾燥具合い、茶製品の色や香りが異なるという問題があった。   Patent Document 1 is drying by blowing and is good for finish drying, but has a problem that the drying condition of tea leaves and the color and aroma of tea products are different from those of conventional drying ovens.

本発明では、碾茶の乾燥に適した碾茶乾燥炉を提供することを課題としており、製茶工場で長時間かけてレンガを積み上げて組立作業をすることなく、完成品を据え付けることができ、独特の炉の香りがある碾茶を製造する装置を提供することを課題としている。   In the present invention, it is an object to provide a tea-tea drying furnace suitable for drying tea-tea, and it is possible to install a finished product without stacking bricks and assembling work for a long time in a tea factory. An object of the present invention is to provide an apparatus for producing tea with a scent of a furnace.

本発明の第1手段は、
燃焼空気を生成する燃焼部と、
該燃焼部で生成した燃焼空気を導入する煙道と、
通気性の無端輸送体と、
これらを囲う乾燥室とから構成することを特徴とする碾茶乾燥炉。
本発明の第2手段は、前記第1手段において、
並行する無端輸送体を複数段設け、茶葉を複数段に分割して乾燥する。
本発明の第3手段は、前記第1または2手段において、
散茶給葉部を設ける。
本発明の第4手段は、前記第1、2または3手段において、
乾燥室を複数設け、茶葉は上から下へ落下移動する。
本発明の第5手段は、前記第1、2、3または4手段において、
前記煙道に調節ダンパを設ける。
The first means of the present invention is:
A combustion section for generating combustion air;
A flue for introducing combustion air generated in the combustion section;
A breathable endless vehicle,
A tea-drying oven characterized by comprising a drying chamber surrounding them.
According to a second means of the present invention, in the first means,
A plurality of parallel endless transporters are provided, and the tea leaves are divided into a plurality of stages and dried.
According to a third means of the present invention, in the first or second means,
Set up a green tea supply section.
The fourth means of the present invention is the first, second or third means,
A plurality of drying chambers are provided, and the tea leaves fall and move from top to bottom.
The fifth means of the present invention is the first, second, third or fourth means,
An adjustment damper is provided in the flue.

従来は製茶工場で組み立て作業をしており、製茶工場での作業時間がかかっていたが、本発明の碾茶乾燥炉により、移動可能となり、現地では据え付け、調整作業のみで済み、作業時間が短縮される。床面より上方に配置することで、ピット工事が不要となり、メンテナンス、操作性がよい。本発明により、乾燥処理能力に必要な装置の省スペース化を図ることができる。また、熱を有効に利用することができ、効率よく乾燥できる。製造された茶製品には、しっかりと良い炉の香りがつく。   Previously, assembly work was done at the tea factory, and it took time to work at the tea factory. However, with the tea-drying oven of the present invention, it can be moved, and only installation and adjustment work is required on site, reducing work time. Is done. By placing it above the floor, pit construction is unnecessary, and maintenance and operability are good. According to the present invention, it is possible to save the space necessary for the drying processing capacity. Moreover, heat can be used effectively and drying can be performed efficiently. Produced tea products have a good oven fragrance.

図1は本発明の碾茶乾燥炉の一例を示した斜視図である。FIG. 1 is a perspective view showing an example of the tea drying oven of the present invention. 図2は本発明の碾茶乾燥炉の一例を示した正面一部断面図である。FIG. 2 is a partial front sectional view showing an example of the tea drying oven of the present invention. 図3は本発明の碾茶乾燥炉の茶葉の流れの一例を示した説明図である。FIG. 3 is an explanatory view showing an example of the flow of tea leaves in the tea-tea drying furnace of the present invention. 図4は本発明の碾茶乾燥炉の茶葉の流れの一部を示した説明図である。FIG. 4 is an explanatory view showing a part of the flow of tea leaves in the tea drying oven of the present invention. 図5は本発明の碾茶乾燥炉の燃焼空気の流れの一例を示した説明図である。FIG. 5 is an explanatory view showing an example of the flow of combustion air in the tea brown drying furnace of the present invention. 図6は本発明の碾茶乾燥炉の一例を示した側面一部断面図である。FIG. 6 is a partial cross-sectional side view illustrating an example of the tea drying oven of the present invention. 図7は従来の碾茶の製造を示した説明図である。FIG. 7 is an explanatory view showing the production of conventional tea.

碾茶乾燥炉は下部の輻射熱乾燥部1と、上部の熱風乾燥部3とに分かれている。輻射熱乾燥部1は、更に第1乾燥室11と第2乾燥室21とに分かれており、第1乾燥室11は上段、第2乾燥室21は下段となっており、各乾燥室の温度を調整するため、仕切板2により分けられている。乾燥室の数はこの限りではなく、増加する場合には、下段に増加するとよい。   The tea drying oven is divided into a lower radiant heat drying section 1 and an upper hot air drying section 3. The radiant heat drying unit 1 is further divided into a first drying chamber 11 and a second drying chamber 21. The first drying chamber 11 is an upper stage and the second drying chamber 21 is a lower stage. In order to adjust, it is divided by the partition plate 2. The number of drying chambers is not limited to this, and if it increases, it may be increased to the lower stage.

第1乾燥室11への茶葉の供給のため、散茶給葉部4を設ける。散茶給葉部4は、茶葉Tを受け入れるホッパー42と、ホッパー42内の茶葉を風送するための送風ファン41と、茶葉の散茶室43を備えている。散茶室43は、送風ファン41からの送風が抜けるように、通気性の良い側壁(本実施例では金網44)となっている。   In order to supply the tea leaves to the first drying chamber 11, the powdered tea supply section 4 is provided. The powder tea supply unit 4 includes a hopper 42 that receives the tea leaves T, a blower fan 41 for blowing the tea leaves in the hopper 42, and a tea leaf tea room 43. The green tea chamber 43 is a side wall (in this embodiment, a metal mesh 44) with good air permeability so that the air blown from the blower fan 41 is removed.

第1乾燥室11には通気性を有する無端輸送体を上下に2段設けてあり、茶葉は散茶給葉部4によりこれら2段の無端輸送体に分けられて搬送される(本実施例では2段であるが、1段でも3段以上でもよい)。本実施例では、無端輸送体としてネットコンベヤ12、13を用いる。2段に分けて茶葉を搬送すると、ネットコンベヤ12、13の全長は、通常の半分でよく、本実施例では約6m、第1乾燥室の全長は約5m、幅は約2mとなる。ネットコンベヤ12、13の終端下部には、ネットコンベヤ12、13に接するように回転ブラシ12A、13Aが設けられている。第1乾燥室11には、バーナーを備えた燃焼部16を設け、煙道14、15内を燃焼空気で満たす。燃焼部16に用いるバーナーは重油バーナーよりガスバーナーの方が燃焼調整や排気調整が容易であり、本実施例では幅方向に並列2基設けているが、ガスバーナーの数はこの限りではない。煙道14は、燃焼部16から水平に4〜6本設け、第1乾燥部室11の空気を輻射熱により十分加熱するため、上下に2本の煙道14、15を設ける。第1乾燥室11が均等に十分加熱されれば、煙道14、15の本数はこの限りではない。燃焼部16による直接の燃焼空気は煙道14を通り、煙道14の終端の燃焼空気は機外に配設した煙道51を通って、煙道15に導かれる。煙道14の終端の燃焼空気の一部は、機外に配設した煙道52を通って、第2乾燥室21の煙道24へ導かれる。第1乾燥室11内の温度を監視するため、温度計18を設ける。第1乾燥室11のネットコンベヤ12、13の終端の茶葉は、第2乾燥室21のネットコンベヤ22上へ自然落下する。   The first drying chamber 11 is provided with two-stage endless transporters having air permeability, and the tea leaves are divided into these two-stage endless transport bodies by the powdered tea feeding portion 4 (this embodiment). In the case of two stages, it may be one stage or three stages or more). In this embodiment, net conveyors 12 and 13 are used as endless transporters. When the tea leaves are conveyed in two stages, the total length of the net conveyors 12 and 13 may be half of the usual, and in this embodiment, the total length of the first drying chamber is about 5 m and the width is about 2 m. Rotating brushes 12 </ b> A and 13 </ b> A are provided at lower ends of the net conveyors 12 and 13 so as to contact the net conveyors 12 and 13. The first drying chamber 11 is provided with a combustion section 16 equipped with a burner, and the inside of the flues 14 and 15 is filled with combustion air. As for the burner used for the combustion section 16, the gas burner is easier to adjust the combustion and the exhaust than the heavy oil burner. In this embodiment, two gas burners are provided in parallel in the width direction, but the number of gas burners is not limited to this. Four to six flues 14 are provided horizontally from the combustion unit 16, and two flues 14 and 15 are provided on the upper and lower sides in order to sufficiently heat the air in the first drying unit chamber 11 by radiant heat. If the 1st drying chamber 11 is equally heated enough, the number of the flues 14 and 15 will not be this limit. The direct combustion air from the combustion section 16 passes through the flue 14, and the combustion air at the end of the flue 14 is guided to the flue 15 through the flue 51 disposed outside the apparatus. Part of the combustion air at the end of the flue 14 is guided to the flue 24 of the second drying chamber 21 through the flue 52 disposed outside the apparatus. In order to monitor the temperature in the first drying chamber 11, a thermometer 18 is provided. The tea leaves at the end of the net conveyors 12 and 13 in the first drying chamber 11 naturally fall onto the net conveyor 22 in the second drying chamber 21.

第2乾燥室21は、通気性を有する無端輸送体を1段、煙道24を水平方向に6本設けてあり、ここでも、本実施例では無端輸送体としてネットコンベヤ22を用いる。ネットコンベヤ22は、第1乾燥室11のネットコンベヤ12、13に対し、逆行する。ネットコンベヤ22の終端下部に接するように回転ブラシ22Aを設ける。第2乾燥室21内の煙道24は機外に配設された煙道52により第1乾燥室11の煙道14と接続されており、第1乾燥室11の煙道14を通った燃焼空気を第2乾燥室22の煙道24へ導く。機外に配設された煙道52、53には、燃焼空気の導入量を調節するため、調節ダンパ54を適宜、配置する。本実施例では、煙道52、53に設けたが、この限りではなく、煙道51に設けてもよい。燃焼空気の導入量を調節することにより、第2乾燥室22の温度が調整される。第2乾燥室21内の温度を監視するため、温度計23を設ける。第2乾燥室21のネットコンベヤ22の終端には、取出用のトラフコンベヤ25を設け、トラフコンベヤ25の終端にホッパー26を設け、ホッパー26内の茶葉を熱風乾燥炉3の上部のシュート29へ送るための送風ファン27および風送管28を設ける。この部分の搬送は、他の搬送装置でもよい。   The second drying chamber 21 is provided with one endless transporter having air permeability and six flues 24 in the horizontal direction. Here, in this embodiment, the net conveyor 22 is used as the endless transporter. The net conveyor 22 runs backward against the net conveyors 12 and 13 in the first drying chamber 11. A rotating brush 22 </ b> A is provided so as to contact the lower end of the net conveyor 22. The flue 24 in the second drying chamber 21 is connected to the flue 14 in the first drying chamber 11 by a flue 52 disposed outside the apparatus, and combustion through the flue 14 in the first drying chamber 11 is performed. Air is directed to the flue 24 of the second drying chamber 22. An adjustment damper 54 is appropriately disposed in the flue 52, 53 disposed outside the apparatus in order to adjust the amount of combustion air introduced. In this embodiment, the flues 52 and 53 are provided. However, the present invention is not limited to this, and the flues 51 may be provided. The temperature of the second drying chamber 22 is adjusted by adjusting the amount of combustion air introduced. In order to monitor the temperature in the second drying chamber 21, a thermometer 23 is provided. A trough conveyor 25 for removal is provided at the end of the net conveyor 22 in the second drying chamber 21, a hopper 26 is provided at the end of the trough conveyor 25, and the tea leaves in the hopper 26 are sent to a chute 29 at the top of the hot air drying furnace 3. A blower fan 27 and a wind pipe 28 for feeding are provided. This part may be transported by another transport device.

燃焼部16で生成する燃焼空気を各ネットコンベヤ12、13、22の上方や下方に配置した煙道14、15、24内を通過させる。これにより、機内の温度を保つことに効果があり、煙道14、15、24から発する熱をネットコンベヤ12、13、22上の茶葉に放射させることができる。   The combustion air produced | generated in the combustion part 16 is passed through the inside of the flues 14, 15, and 24 arrange | positioned under each net conveyor 12,13,22. Thereby, it is effective in maintaining the temperature in the machine, and heat generated from the flues 14, 15, 24 can be radiated to the tea leaves on the net conveyors 12, 13, 22.

煙道14、15、24の表面または第1乾燥室11、第2乾燥室21の側壁の内側へ、遠赤外線を放射することができる塗料を塗布する。すると、塗料により、遠赤外線の効果による無理のない効率の良い乾燥がおこなわれ、茶葉は色落ちや風味を落とすことなく乾燥できる。   A paint capable of emitting far-infrared rays is applied to the surfaces of the flues 14, 15, and 24, or inside the side walls of the first drying chamber 11 and the second drying chamber 21. Then, the paint can be efficiently dried by the effect of far-infrared rays and the tea leaves can be dried without fading or losing the flavor.

第1乾燥室11のネットコンベヤ12、13から第2乾燥室21のネットコンベヤ22へ茶葉が自然落下する部分は仕切板2がなく、第1乾燥室11と第2乾燥室21はつながっており、風洞17を形成し、茶葉から蒸散する湿気を帯びた空気は上昇し、上部の排気ファン38により排出される。(図5において、破線矢印で茶葉から蒸散する湿気を帯びた空気の動きを示す)   The part where the tea leaves naturally fall from the net conveyors 12 and 13 of the first drying chamber 11 to the net conveyor 22 of the second drying chamber 21 has no partition plate 2, and the first drying chamber 11 and the second drying chamber 21 are connected. Then, the air with moisture that forms the wind tunnel 17 and evaporates from the tea leaves rises and is exhausted by the upper exhaust fan 38. (In FIG. 5, the dashed arrows indicate the movement of humid air that evaporates from the tea leaves.)

熱風乾燥部3は、シュート29から出た茶葉を薄く広げるためのかきならし具35を備え、熱風乾燥室31内に通気性を有する無端輸送体32A、32B、33A、33Bを4段設けている。無端輸送体の段数はこの限りではない。第1乾燥室11または第2乾燥室21を通過した燃焼空気を機外の煙道53より熱風乾燥部3との間の排煙調整室36へ導き、排煙調整室36内の燃焼空気を供給ファン37により下方から熱風乾燥室31へ導入している。この排煙調整室36は、第1乾燥室11と熱風乾燥室31の間で、第1乾燥室11の上面かつ熱風乾燥室31の下面にあり、第1乾燥室11全域にわたっているとよい。これにより、第1乾燥室11は上面からあたためられ、熱風乾燥室31は下面からあたためられる。熱風乾燥室31に導入する熱風温度を調整するため、排熱調整室36に外気導入口(図示しない)を設け、必要に応じて外気を導入してもよい。一度、燃焼空気を排熱調整室36に導入することで、安定した熱風を熱風乾燥室31に導入することができる。熱風乾燥室31の上方には、乾燥に使用した熱風を排気するための排気ファン38を設ける。供給ファン37と排気ファン38は、それぞれインバータ(図示しない)にて出力調整する。これにより機内の温度を調節することができる。無端輸送体33Bの終端には、茶葉を取り出すためのスクリューコンベヤ29を設ける。   The hot air drying unit 3 includes a stirrer 35 for spreading the tea leaves from the chute 29 thinly, and has four stages of endless transporters 32A, 32B, 33A, 33B having air permeability in the hot air drying chamber 31. Yes. The number of endless transporters is not limited to this. The combustion air that has passed through the first drying chamber 11 or the second drying chamber 21 is guided from the flue 53 outside the apparatus to the flue gas adjusting chamber 36 between the hot air drying section 3 and the combustion air in the flue gas adjusting chamber 36 is discharged. The hot air drying chamber 31 is introduced from below by a supply fan 37. The smoke exhausting adjustment chamber 36 is preferably located between the first drying chamber 11 and the hot air drying chamber 31, on the upper surface of the first drying chamber 11 and on the lower surface of the hot air drying chamber 31, and covers the entire area of the first drying chamber 11. Thereby, the 1st drying chamber 11 is warmed from the upper surface, and the hot-air drying chamber 31 is warmed from the lower surface. In order to adjust the temperature of the hot air introduced into the hot air drying chamber 31, an outside air inlet (not shown) may be provided in the exhaust heat adjusting chamber 36 to introduce outside air as necessary. Once the combustion air is introduced into the exhaust heat adjustment chamber 36, stable hot air can be introduced into the hot air drying chamber 31. An exhaust fan 38 for exhausting hot air used for drying is provided above the hot air drying chamber 31. The output of the supply fan 37 and the exhaust fan 38 is adjusted by an inverter (not shown). As a result, the temperature inside the machine can be adjusted. A screw conveyor 29 for taking out tea leaves is provided at the end of the endless transport body 33B.

それぞれの無端輸送体12、13、22、32A、32B、33A、33Bには、インバータ(図示しない)を設け、それぞれのスピード、処理時間を得られるようにして、調整する。   Each endless transporter 12, 13, 22, 32A, 32B, 33A, 33B is provided with an inverter (not shown), and adjusted so that each speed and processing time can be obtained.

次に、この碾茶乾燥炉を起動し、茶葉を投入した動きを説明する。蒸熱し、冷却した茶葉Tを散茶給葉部4のホッパー42へ搬送する。ホッパー42に入った茶葉Tは、送風ファン41の送風により、散茶室43へ飛ばされ、落下するときに、上段のネットコンベヤ12または下段のネットコンベヤ13へのる。ネットコンベヤ12、13上では、煙道14、15からの輻射熱や対流した熱、塗料から放射される遠赤外線などにより乾燥される。このとき、第1乾燥室11の温度は、約120〜200度である。第1乾燥室11のネットコンベヤ12、13上で乾燥された茶葉は、第2乾燥室21のネットコンベヤ22上へ自然落下する。落下時に、茶葉の上下、隣の茶葉との位置、ネットコンベヤへの接触などが変化する。   Next, a description will be given of the movement of starting the tea-tea drying oven and introducing tea leaves. The steamed and cooled tea leaves T are conveyed to the hopper 42 of the powdered tea feeding section 4. The tea leaves T that have entered the hopper 42 are blown to the powdered tea room 43 by the blow of the blower fan 41, and when dropped, go to the upper net conveyor 12 or the lower net conveyor 13. On the net conveyors 12 and 13, it is dried by radiant heat from the flues 14 and 15, convection heat, far infrared rays radiated from the paint, or the like. At this time, the temperature of the first drying chamber 11 is about 120 to 200 degrees. The tea leaves dried on the net conveyors 12 and 13 in the first drying chamber 11 naturally fall onto the net conveyor 22 in the second drying chamber 21. When falling, the top and bottom of the tea leaves, the position with the adjacent tea leaves, the contact with the net conveyor, etc. change.

第2乾燥室21のネットコンベヤ22上でも、第1乾燥室11と同様に、煙道24からの輻射熱や塗料から放射される遠赤外線などにより乾燥される。このとき、第2乾燥室21の温度は、約80〜130度である。この温度を上げたいときは、調整ダンパ54を開き、この温度を下げたいときは、調整ダンパ54を閉じる。ネットコンベヤ22上で乾燥された茶葉は、トラフコンベヤ25上へ取り出され、ホッパー26へ回収される。ホッパー26内の茶葉へ送風ファン27により送風し、風送管28内を通過して、シュート29により給葉部34へ茶葉を投入する。   Also on the net conveyor 22 in the second drying chamber 21, similarly to the first drying chamber 11, drying is performed by radiant heat from the flue 24, far infrared rays radiated from the paint, or the like. At this time, the temperature of the second drying chamber 21 is about 80 to 130 degrees. When it is desired to increase the temperature, the adjustment damper 54 is opened, and when it is desired to decrease the temperature, the adjustment damper 54 is closed. The tea leaves dried on the net conveyor 22 are taken out onto the trough conveyor 25 and collected into the hopper 26. The blower fan 27 blows air to the tea leaves in the hopper 26, passes through the air feed pipe 28, and the tea leaves are put into the leaf feeding section 34 by the chute 29.

給葉部34内の茶葉をかきならし具35により薄く平らにして、無端輸送体32A上へのせる。供給ファン37により排煙調整室36内の熱風を熱風乾燥室31内へ取り込み、熱風により乾燥する。このときの熱風乾燥室31の温度は約80〜90度であり、この温度は、供給ファン37の回転数により変更することができる。茶葉から蒸散する湿気を帯びた空気は上昇し、上部の排気ファン38により排気される。熱風乾燥室31内で乾燥した茶葉をスクリューコンベヤ39へ排出し、スクリューコンベヤ39により、次の機械(または搬送装置)へ搬送する。   The tea leaves in the leaf supply portion 34 are made thin and flat by the stiffener 35 and placed on the endless transporter 32A. The supply fan 37 takes in the hot air in the smoke control chamber 36 into the hot air drying chamber 31 and dries with the hot air. At this time, the temperature of the hot-air drying chamber 31 is about 80 to 90 degrees, and this temperature can be changed by the rotation speed of the supply fan 37. Moist air that evaporates from the tea leaves rises and is exhausted by the upper exhaust fan 38. The tea leaves dried in the hot air drying chamber 31 are discharged to the screw conveyor 39 and conveyed to the next machine (or conveying device) by the screw conveyor 39.

以上のような流れで、ネットコンベヤ12、13上を約1分から約2分30秒、ネットコンベヤ22上を約2分30秒から約5分、無端輸送体32A、32B、33A、33Bは約10分から約40分程度で茶葉を良好に乾燥することができる。   With the above flow, about 1 minute to about 2 minutes 30 seconds on the net conveyors 12, 13 and about 2 minutes 30 seconds to about 5 minutes on the net conveyor 22, the endless transport bodies 32A, 32B, 33A, 33B are about Tea leaves can be dried well in about 10 minutes to about 40 minutes.

本実施例では、第1乾燥室11を2本のネットコンベヤ12、13にしたため、茶葉の量をネットコンベヤが1本の場合と比べて、それぞれのネットコンベヤ12、13の上にのる茶葉を約半分にすることができる。そのため、ネットコンベヤ12、13の移送速度を約2倍に遅くすることができ、ネットコンベヤ12、13上で茶葉を乾燥する時間は、ネットコンベヤが1本の場合とほぼ同じとなる。第1乾燥室11のネットコンベヤを3本以上にしても同様である。   In this embodiment, since the first drying chamber 11 is made up of two net conveyors 12 and 13, the amount of tea leaves on the net conveyors 12 and 13 compared to the case of one net conveyor. Can be halved. Therefore, the transfer speed of the net conveyors 12 and 13 can be reduced by about twice, and the time for drying the tea leaves on the net conveyors 12 and 13 is almost the same as the case of one net conveyor. The same is true if there are three or more net conveyors in the first drying chamber 11.

T 茶葉
1 輻射熱乾燥部
2 仕切板
3 熱風乾燥部
4 散茶給葉部
11 第1乾燥室
12 ネットコンベヤ
12A 回転ブラシ
13 ネットコンベヤ
13A 回転ブラシ
14 煙道
15 煙道
16 燃焼部
17 風洞
18 温度計
21 第2乾燥室
22 ネットコンベヤ
22A 回転ブラシ
23 温度計
24 煙道
25 トラフコンベヤ
26 ホッパー
27 送風ファン
28 風送管
29 シュート
31 熱風乾燥室
32A 無端輸送体
32B 無端輸送体
33A 無端輸送体
33B 無端輸送体
34 給葉部
35 かきならし具
36 排煙調整室
37 供給ファン
38 排気ファン
39 スクリューコンベヤ
40 温度計
41 送風ファン
42 ホッパー
43 散茶室
44 金網
51 煙道
52 煙道
53 煙道
54 調節ダンパ
71 蒸熱
72 散茶冷却
73 乾燥
74 燃焼部
75 ピット
76 吹上
T Tea leaf 1 Radiant heat drying section 2 Partition plate 3 Hot air drying section 4 Green tea feeding section 11 First drying chamber 12 Net conveyor 12A Rotary brush 13 Net conveyor 13A Rotary brush 14 Flue 15 Flue 16 Combustion section 17 Wind tunnel 18 Thermometer 21 Second Drying Room 22 Net Conveyor 22A Rotating Brush 23 Thermometer 24 Flue 25 Trough Conveyor 26 Hopper 27 Blower Fan 28 Air Pipe 29 Chute 31 Hot Air Drying Room 32A Endless Transport Body 32B Endless Transport Body 33A Endless Transport Body 33B Endless Transport Body 34 Feeding part 35 Squeezing tool 36 Smoke exhaust control room 37 Supply fan 38 Exhaust fan 39 Screw conveyor 40 Thermometer 41 Blower fan 42 Hopper 43 Tea ceremony room 44 Wire net 51 Smoke 52 Smoke 53 Smoke 54 Adjustment damper 71 Steaming heat 72 Cooling tea cooling 73 Drying 74 Combustion part 75 Pit 76 Airflow

Claims (5)

燃焼空気を生成する燃焼部と、
該燃焼部で生成した燃焼空気を導入する煙道と、
通気性の無端輸送体と、
これらを囲う乾燥室とから構成することを特徴とする碾茶乾燥炉。
A combustion section for generating combustion air;
A flue for introducing combustion air generated in the combustion section;
A breathable endless vehicle,
A tea-drying oven characterized by comprising a drying chamber surrounding them.
並行する無端輸送体を複数段設け、茶葉を複数段に分割して乾燥することを特徴とする請求項1記載の碾茶乾燥炉。   2. The tea-tea drying oven according to claim 1, wherein a plurality of endless transporters in parallel are provided, and the tea leaves are divided into a plurality of stages and dried. 散茶給葉部を設けることを特徴とする請求項1または2記載の碾茶乾燥炉。   3. A tea tea drying oven according to claim 1 or 2, wherein a powdered tea feeding portion is provided. 乾燥室を複数設け、茶葉は上から下へ落下移動することを特徴する請求項1、2または3記載の碾茶乾燥炉。   4. A tea-tea drying oven according to claim 1, wherein a plurality of drying chambers are provided, and the tea leaves fall and move from top to bottom. 前記煙道に調節ダンパを設けることを特徴とする請求項1、2、3または4記載の碾茶乾燥炉。   5. A tea tea drying oven according to claim 1, wherein an adjustment damper is provided in the flue.
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Publication number Priority date Publication date Assignee Title
CN108576267A (en) * 2018-03-06 2018-09-28 浙江红五环制茶装备股份有限公司 A kind of stone roller tea automatic production process
JP2018198569A (en) * 2017-05-29 2018-12-20 株式会社寺田製作所 Tea manufacturing machine and stop control method therefor

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JPH0480382U (en) * 1990-11-22 1992-07-13
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JPH0849972A (en) * 1994-08-04 1996-02-20 Terada Seisakusho:Kk Drier for powdered tea to be presented
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JP2001292699A (en) * 2000-04-11 2001-10-23 Kawasaki Kiko Co Ltd Controller of tea leaf drier
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JPH0480382U (en) * 1990-11-22 1992-07-13
JPH0746962A (en) * 1993-08-05 1995-02-21 Kigyo Kumiai Shizuoka Kikai Seisakusho Method for drying rough tea
JPH0849972A (en) * 1994-08-04 1996-02-20 Terada Seisakusho:Kk Drier for powdered tea to be presented
JPH0854183A (en) * 1994-08-10 1996-02-27 Kigyo Kumiai Shizuoka Kikai Seisakusho Multistage tea leaf dryer
JP3056377U (en) * 1997-12-17 1999-02-16 株式会社福寿園 Tea leaf sterilizer
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018198569A (en) * 2017-05-29 2018-12-20 株式会社寺田製作所 Tea manufacturing machine and stop control method therefor
CN108576267A (en) * 2018-03-06 2018-09-28 浙江红五环制茶装备股份有限公司 A kind of stone roller tea automatic production process

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