JPS6360307B2 - - Google Patents
Info
- Publication number
- JPS6360307B2 JPS6360307B2 JP54080710A JP8071079A JPS6360307B2 JP S6360307 B2 JPS6360307 B2 JP S6360307B2 JP 54080710 A JP54080710 A JP 54080710A JP 8071079 A JP8071079 A JP 8071079A JP S6360307 B2 JPS6360307 B2 JP S6360307B2
- Authority
- JP
- Japan
- Prior art keywords
- heating
- drum
- heating chamber
- heating means
- rotary dryer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010438 heat treatment Methods 0.000 claims description 65
- 238000001035 drying Methods 0.000 claims description 33
- 241000208125 Nicotiana Species 0.000 claims description 22
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 22
- 238000005452 bending Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Description
本発明は、刻たばこのような細片状集合体の回
転式乾燥機に関する。
従来の刻たばこ用回転式乾燥機は、実公昭49−
8960号（図−１に図示）のように回転ドラムの内
面に加熱管をＬ字状に配置した加熱室を複数設け
ているが、この乾燥機は供給された刻たばこがＬ
字状加熱室内で加熱され、ドラムの回転により下
方より上方に180度回転するまでに前記加熱室か
らすべて落下し、下方の加熱室内に落下した時に
衝撃により破砕し、また、回転ドラム断面中の刻
たばこの循環範囲は下方から上方に移動して落下
する範囲すなわち回転ドラム断面中の半分であ
り、加熱室内の全加熱面積に対する刻たばこの接
触割合が少なく、伝熱効果が小さい欠点があつ
た。
本発明は上記欠点を解消するために、水平に対
して傾けられた軸心を中心として回転するドラム
１の内面に、該ドラムの軸心方向に走る複数の中
空体状の加熱手段２で構成した複数の加熱室１３
が連結して設けられた刻たばこのような細片状集
合体用乾燥ドラム１において、該ドラムの内面に
該軸心側を開放状にして半円筒状に加熱手段２を
配設し、かつ、該半円筒状の一端を該ドラム１の
回転方向に屈折して棚状に加熱手段を設けて加熱
室１３を形成せしめることによつて該ドラム１の
回転中該細片状集合体を該加熱室１３内で循環さ
せつつ軸方向に移動せしめることを特徴とした乾
燥機を提供するものである。
以下、実施例を図面によつて詳細に説明する。
第２図は本発明における回転式乾燥機の一部を
切り欠いた側面図で、水平に対して傾けられた軸
心を中心として回転する乾燥ドラム１の内面に、
幅方向に走る加熱管２および加熱管３が設けてあ
る。乾燥ドラム１の下方に傾けられた一端の軸心
にロータリバルブ４が設けてあり、フレキシブル
管５を介して乾燥ドラム１の内面に設けた蒸気供
給管６に連結し、乾燥ドラム１の上方に傾けられ
た一端の内面円周に設けた加熱管ヘツダー７を介
して加熱管２および加熱管３に連結している。加
熱管２および加熱管３は乾燥ドラム１のロータリ
バルブ４側の内面円周に設けた凝結水ヘツダー８
に連結し、凝結水管９、フレキシブル管１０を介
してロータリバルブ４に連結している。乾燥ドラ
ム１の加熱管ヘツダー７側の一端に装入口１１が
設けてあり、さらにロータリバルブ４側の一端に
排出口１２が設けてある。乾燥ドラム１の下側に
熱風発生器１４が設けてあり、熱風供給管１５を
介して乾燥ドラム１の装入口１１の下部に連結し
ている。
ロータリバルブ４に供給された蒸気は、ロータ
リバルブ４よりフレキシブル管５を介して蒸気供
給管６、加熱管ヘツダー７を介して加熱管２およ
び加熱管３に分配供給され、回転する乾燥ドラム
１内の刻たばこ１６を乾燥した後の凝結水は、凝
結水ヘツダー８、凝結水管９、フレキシブル管１
０を介してロータリバルブ４より排出される。熱
風は熱風発生器１４から熱風供給管１５を介して
乾燥ドラム１に供給される。
装入口１１より供給された刻たばこ１６は乾燥
後排出口１２により排出される。
第３図は、第２図のＡ−A′線で切断した断面
図で乾燥ドラム１の内面に軸心側を開放状にして
半円筒状に加熱管２を配設して加熱室１３を複数
設け、かつ、該半円筒状の一端を乾燥ドラム１の
回転方向に屈折して棚状に加熱管３を設けてあ
り、上記棚状加熱管３付加熱室１３は、乾燥ドラ
ム１の回転中、乾燥ドラム１の加熱室１３内に供
給された刻たばこ１６の大半が加熱室１３から落
下しないで加熱室１３内で循環する形状となつて
いる。
次に本発明の乾燥機による刻たばこの破砕効果
を求める試験結果は次のとおりである。
実施例 １
試験機として本発明による加熱室を設けた回分
形回転式乾燥機と従来のＬ字状の加熱室を設けた
回分形回転式乾燥機について、ブレンド品刻たば
こを使用し、水分18％、品温28℃の刻たばこを１
回あたり30Kg投入し、熱風量毎分12m2、熱風温度
40℃、乾燥ドラムの周速毎分53ｍ、圧力1.5Kg／
cm2の蒸気を５分間通気して乾燥し、乾燥後の水
分、品温およびパンチメタル式多段形振動ふるい
機により1.5mm以下の刻たばこの粒度割合を測定
した結果は第１表のとおりである。
The present invention relates to a rotary dryer for strip-shaped aggregates such as cut tobacco. The conventional rotary dryer for cut tobacco was developed in 1974.
As shown in No. 8960 (shown in Figure 1), there are multiple heating chambers with heating tubes arranged in an L shape on the inner surface of the rotating drum.
It is heated in a letter-shaped heating chamber, and by the time the drum rotates 180 degrees from the bottom to the top, it all falls out of the heating chamber, and when it falls into the heating chamber below, it is crushed by the impact, and the parts in the cross section of the rotating drum are The circulation area of the cut tobacco is the area where it moves from the bottom to the top and falls, that is, half of the cross section of the rotating drum, and the contact ratio of the cut tobacco to the total heating area in the heating chamber is small, which has the disadvantage that the heat transfer effect is small. . In order to eliminate the above-mentioned drawbacks, the present invention includes a plurality of heating means 2 in the form of a hollow body running in the direction of the axis of the drum on the inner surface of the drum 1 which rotates around the axis tilted with respect to the horizontal. multiple heating chambers 13
In a drying drum 1 for a collection of strips such as cut tobacco, which is connected to each other, a heating means 2 is disposed on the inner surface of the drum in a semi-cylindrical shape with the axial center side open, and , by bending one end of the semi-cylindrical shape in the direction of rotation of the drum 1 and providing heating means in the form of a shelf to form a heating chamber 13, the strip-shaped aggregate is heated while the drum 1 is rotating. The present invention provides a dryer characterized in that the dryer is moved in the axial direction while being circulated within the heating chamber 13. Hereinafter, embodiments will be described in detail with reference to the drawings. FIG. 2 is a partially cutaway side view of the rotary dryer according to the present invention.
A heating tube 2 and a heating tube 3 running in the width direction are provided. A rotary valve 4 is provided at the axis of one end of the drying drum 1 that is inclined downward, and is connected to a steam supply pipe 6 provided on the inner surface of the drying drum 1 via a flexible pipe 5. It is connected to the heating tubes 2 and 3 via a heating tube header 7 provided on the inner circumference of one inclined end. The heating tubes 2 and 3 are connected to a condensed water header 8 provided on the inner circumference of the drying drum 1 on the rotary valve 4 side.
It is connected to the rotary valve 4 via a condensed water pipe 9 and a flexible pipe 10. A charging port 11 is provided at one end of the drying drum 1 on the heating tube header 7 side, and a discharge port 12 is further provided at one end on the rotary valve 4 side. A hot air generator 14 is provided below the drying drum 1 and is connected to the lower part of the charging port 11 of the drying drum 1 via a hot air supply pipe 15. The steam supplied to the rotary valve 4 is distributed from the rotary valve 4 through a flexible pipe 5 to a steam supply pipe 6 and a heating pipe header 7 to a heating pipe 2 and a heating pipe 3, and is then distributed to the heating pipe 2 and heating pipe 3 through a flexible pipe 5. The condensed water after drying the shredded tobacco 16 is transferred to a condensed water header 8, a condensed water pipe 9, and a flexible pipe 1.
0 and is discharged from the rotary valve 4. Hot air is supplied from a hot air generator 14 to the drying drum 1 via a hot air supply pipe 15. The shredded tobacco 16 supplied from the charging port 11 is discharged from the discharge port 12 after drying. FIG. 3 is a cross-sectional view taken along the line A-A' in FIG. 2, and a heating chamber 13 is formed by disposing a heating tube 2 in a semi-cylindrical shape with the axial center side open on the inner surface of the drying drum 1. A plurality of heating tubes 3 are provided, and one end of the semi-cylindrical shape is bent in the direction of rotation of the drying drum 1 to provide a shelf-like heating tube 3. Most of the shredded tobacco 16 supplied into the heating chamber 13 of the drying drum 1 circulates within the heating chamber 13 without falling from the heating chamber 13. Next, the results of a test to determine the effect of crushing shredded tobacco using the dryer of the present invention are as follows. Example 1 A batch-type rotary dryer equipped with a heating chamber according to the present invention and a conventional batch-type rotary dryer equipped with an L-shaped heating chamber were used as test machines, using blended shredded tobacco with a moisture content of 18 %, cut tobacco at a temperature of 28℃ 1
Input 30Kg per time, hot air volume 12m 2 / minute, hot air temperature
40℃, peripheral speed of drying drum 53m/min, pressure 1.5Kg/
Table 1 shows the results of drying by blowing steam of 2 cm2 for 5 minutes and measuring the moisture content, product temperature, and particle size ratio of shredded tobacco of 1.5 mm or less using a punch metal multi-stage vibrating sieve machine. be.
【表】
第１表より、従来の方式より本発明による方式
の方が乾燥後の水分が低く品温が高いことから乾
燥効果が高く、1.5mm以下の刻たばこの粒度割合
が小さいことから刻の破砕が少ないことが判明し
た。
なお、乾燥中における乾燥ドラム内の刻たばこ
は、従来の乾燥機における下方より上方に180度
回転するまでにすべて落下する状態と異なり、第
３図に示すように乾燥ドラム回転中大半の刻たば
こが加熱室内で循環しており、加熱管との接触が
多いことから乾燥効果が高くなることが推定さ
れ、さらに加熱室内の循環による刻たばこの落下
が小さいことから破砕が少なくなることが推定さ
れた。
実施例 ２
実施例１と同じ試験機および従来の乾燥機を使
用して、水分33％、品温26℃の中骨刻を１回あた
り15Kg投入し、熱風量毎分12m2、熱風温度80℃、
乾燥ドラムの周速毎分53ｍ、圧力２Kg／cm2の蒸気
を６分間通気して乾燥し、乾燥後の水分、品温お
よび1.5mm以下の中骨刻の粒度割合を測定した結
果は第２表のとおりである。[Table] From Table 1, the method according to the present invention has a higher drying effect than the conventional method because the moisture content after drying is lower and the product temperature is higher, and the particle size ratio of cut tobacco of 1.5 mm or less is smaller, so the method according to the present invention is more effective than the conventional method. It was found that there was less crushing. Note that during drying, the shredded tobacco in the drying drum is different from the state in which all of the shredded tobacco falls during the rotation of the drying drum by 180 degrees from the bottom to the top in a conventional dryer, as shown in Figure 3. It is estimated that the drying effect is enhanced because the tobacco circulates in the heating chamber and there is a lot of contact with the heating tube, and it is also estimated that the shredded tobacco falls less due to the circulation inside the heating chamber, so it is estimated that there will be less shredding. Ta. Example 2 Using the same testing machine and conventional dryer as in Example 1, 15 kg of cut bones with a moisture content of 33% and a material temperature of 26°C were introduced at a time, the hot air volume was 12 m 2 per minute, and the hot air temperature was 80°C. °C,
The drying drum was dried by blowing steam at a peripheral speed of 53 m/min and a pressure of 2 kg/cm 2 for 6 minutes, and the moisture content, product temperature, and particle size ratio of cut bones of 1.5 mm or less after drying were measured. As shown in the table.
【表】
第２表より刻たばこの結果と同様にして本発明
による方式は、従来の方式よりも乾燥効果が高
く、破砕が少ないことが判明した。
実施例 ３
従来のＬ字状加熱管を設けた回転式乾燥機より
加熱面積を50％少なくした本発明による加熱室を
設けた回転式乾燥機と従来の回転式乾燥機につい
て、水分18％、品温25℃のブレンド品刻たばこを
毎時1800Kgで乾燥機に供給し、熱風量毎分30m2、
熱風温度40℃、乾燥ドラムの周速毎分53ｍ、圧力
1.5Kg／cm2の蒸気で乾燥し、乾燥後の水分、品温
および1.5mm以下の刻たばこの粒度割合を測定し
た結果は第３表のとおりである。Table 2 shows that, similar to the results for shredded tobacco, the method according to the present invention has a higher drying effect and less crushing than the conventional method. Example 3 Regarding a rotary dryer equipped with a heating chamber according to the present invention, which has a heating area 50% smaller than that of a conventional rotary dryer equipped with an L-shaped heating tube, and a conventional rotary dryer, a moisture content of 18%, Blended shredded tobacco at a temperature of 25°C is fed to the dryer at a rate of 1,800 kg/hour, with a hot air volume of 30 m 2 /min.
Hot air temperature 40℃, peripheral speed of drying drum 53m/min, pressure
Table 3 shows the results of drying with 1.5 kg/cm 2 steam and measuring the moisture content, product temperature, and particle size ratio of cut tobacco of 1.5 mm or less after drying.
【表】
第３表の結果より、本発明による乾燥機は、従
来方式と同じ乾燥効果となり、加熱面積を50％少
なくできることが判明した。
なお、第４図は本発明による加熱室の変形例と
して加熱管２を外周側をわん曲状の板、内周側を
波状の板にして接合せる形状、加熱管３を相対す
る波状の板にして相対する波高部分を接合せる形
状にしたものであり、第３図における管状加熱管
よりも加熱面積が増加し、乾燥効果が向上するこ
とが推定され、さらに、加熱管の製作が容易にな
る特徴を有する。
なお、加熱管３は加熱管２のように外周側をわ
ん曲状の板、内周側を波状の板にして接合せる形
状にしても差し支えない。
上述の実施例から本発明における回転式乾燥機
は、従来のＬ字状の加熱室を設けた回転式乾燥機
よりも乾燥効果が高く、したがつて加熱面積を小
さくできることによつて乾燥機を小さくし、設置
面積を縮少することが可能であり、さらに破砕が
少ないことから刻たばこの原価を節約することが
可能である。[Table] From the results in Table 3, it was found that the dryer according to the present invention had the same drying effect as the conventional method and could reduce the heating area by 50%. FIG. 4 shows a modified example of the heating chamber according to the present invention, in which the heating tube 2 is joined with a curved plate on the outer circumferential side and a wavy plate on the inner circumferential side, and the heating tube 3 is connected to the opposing wavy plate. It is assumed that the heating area is increased and the drying effect is improved compared to the tubular heating tube shown in Fig. 3, and the heating tube is easier to manufacture. It has the following characteristics. Note that the heating tube 3 may be shaped like the heating tube 2, with the outer circumferential side being a curved plate and the inner circumferential side being a corrugated plate and joined together. As can be seen from the above embodiments, the rotary dryer of the present invention has a higher drying effect than the conventional rotary dryer equipped with an L-shaped heating chamber. It is possible to reduce the installation area by making it smaller, and furthermore, since there is less crushing, it is possible to save the cost of cut tobacco.
第１図は、従来のＬ字状の加熱管を設けた回転
式乾燥機の乾燥ドラムの軸心を直交する拡大断面
図、第２図は、本発明における乾燥機の一部を切
り欠いた側面図、第３図は、第２図のＡ−A′線
で切断した状態における拡大断面図、第４図は、
第３図の変形例を示す断面図である。
１……乾燥ドラム、２……加熱管、３……加熱
管、１３……加熱室。
Fig. 1 is an enlarged sectional view perpendicular to the axis of the drying drum of a rotary dryer equipped with a conventional L-shaped heating tube, and Fig. 2 is a partially cutaway view of the dryer according to the present invention. The side view, FIG. 3 is an enlarged sectional view taken along line A-A' in FIG. 2, and FIG.
FIG. 4 is a sectional view showing a modification of FIG. 3; 1...Drying drum, 2...Heating tube, 3...Heating tube, 13...Heating chamber.
Claims (1)
転するドラム１の内面に、該軸心方向に走る複数
の中空体状の加熱手段２で構成した複数の加熱室
１３が連結して設けられた刻たばこのような細片
状集合体用乾燥ドラムにおいて、該ドラム１の内
面に該軸心側を開放状にして半円筒状に加熱手段
２を配設し、かつ、該半円筒状の一端を該ドラム
１の回転方向に屈折して棚状に加熱手段３を設け
て加熱室１３を形成せしめることによつて該ドラ
ム１の回転中該細片状集合体を該加熱室１３内で
循環させつつ軸方向に移動せしめることを特徴と
した回転式乾燥機。 ２ 該加熱手段２および３が管状で該加熱室１３
を形成することを特徴とする特許請求の範囲第１
項記載の回転式乾燥機。 ３ 該加熱手段２および３が相対する波状の板に
して相対する波高部分を接合せる形状で該加熱室
１３を形成することを特徴とする特許請求の範囲
第１項記載の回転式乾燥機。 ４ 該加熱手段２および３が外周側をわん曲状の
板、内周側を波状の板にして接合せる形状で該加
熱室１３を形成することを特徴とする特許請求の
範囲第１項記載の回転式乾燥機。[Scope of Claims] 1. A plurality of heating chambers 13 constituted by a plurality of hollow heating means 2 running in the direction of the axis are provided on the inner surface of a drum 1 that rotates around an axis tilted with respect to the horizontal. A drying drum for a small piece aggregate such as cut tobacco is provided in which a heating means 2 is disposed on the inner surface of the drum 1 in a semi-cylindrical shape with the axial center side open, and By bending one end of the semi-cylindrical shape in the direction of rotation of the drum 1 and providing a heating means 3 in the form of a shelf to form a heating chamber 13, the strip-like aggregate is heated while the drum 1 is rotating. A rotary dryer characterized by being moved in the axial direction while circulating within the heating chamber 13. 2 The heating means 2 and 3 are tubular and the heating chamber 13
The first claim characterized in that
Rotary dryer as described in section. 3. The rotary dryer according to claim 1, wherein the heating chamber 13 is formed in a shape in which the heating means 2 and 3 are made of opposing wavy plates and their opposing wavy portions are joined. 4. The heating chamber 13 is formed in a shape in which the heating means 2 and 3 are joined by a curved plate on the outer circumferential side and a wavy plate on the inner circumferential side. rotary dryer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8071079A JPS567975A (en) | 1979-06-28 | 1979-06-28 | Rotary drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8071079A JPS567975A (en) | 1979-06-28 | 1979-06-28 | Rotary drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS567975A JPS567975A (en) | 1981-01-27 |
| JPS6360307B2 true JPS6360307B2 (en) | 1988-11-24 |
Family
ID=13725883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8071079A Granted JPS567975A (en) | 1979-06-28 | 1979-06-28 | Rotary drier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS567975A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694131B2 (en) * | 1990-11-09 | 1994-11-24 | 産業機電株式會社 | Mixer for raw materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223483A (en) * | 1985-03-28 | 1986-10-04 | 日本たばこ産業株式会社 | Double cylinder type drier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS498960U (en) * | 1972-04-27 | 1974-01-25 | ||
| JPS5222825A (en) * | 1975-08-14 | 1977-02-21 | Matsushita Electric Ind Co Ltd | Color television signal recording method for pal method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436120Y2 (en) * | 1975-12-12 | 1979-11-01 |
-
1979
- 1979-06-28 JP JP8071079A patent/JPS567975A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS498960U (en) * | 1972-04-27 | 1974-01-25 | ||
| JPS5222825A (en) * | 1975-08-14 | 1977-02-21 | Matsushita Electric Ind Co Ltd | Color television signal recording method for pal method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694131B2 (en) * | 1990-11-09 | 1994-11-24 | 産業機電株式會社 | Mixer for raw materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS567975A (en) | 1981-01-27 |
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