JP3333293B2 - Call-in-tube dryer - Google Patents
Call-in-tube dryerInfo
- Publication number
- JP3333293B2 JP3333293B2 JP34425193A JP34425193A JP3333293B2 JP 3333293 B2 JP3333293 B2 JP 3333293B2 JP 34425193 A JP34425193 A JP 34425193A JP 34425193 A JP34425193 A JP 34425193A JP 3333293 B2 JP3333293 B2 JP 3333293B2
- Authority
- JP
- Japan
- Prior art keywords
- jacket
- steam
- call
- peripheral wall
- rotating cylinder
- 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 - Lifetime
Links
Landscapes
- Drying Of Solid Materials (AREA)
- Coke Industry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、コークス原料炭など
の主として粉粒状石炭類を連続的に調湿乾燥するための
コール・イン・チューブドライヤに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coal-in-tube dryer for continuously conditioning and drying mainly pulverized coal such as coking coal.
【０００２】[0002]
【従来の技術】この種のチューブドライヤは、一般的
に、蒸気が流通する傾斜姿勢の回転円筒体内に、粉粒状
石炭などの被乾燥物を傾斜上端から傾斜下端方向に流通
させる多数のチューブを前記回転円筒体の軸線方向に配
列し、前記回転円筒体の上端側に傾斜板構造からなる被
乾燥物用供給手段を設け、この供給手段と同一端の回転
円筒体の外周縁部に、こぼれ落ちた被乾燥物を回収し前
記供給手段に投入する掻上げ手段を環状に連続して設け
た構造からなる。こうした構造のチューブドライヤは、
例えば、西ドイツ特許第６１１９８８号公報に記載され
ている。2. Description of the Related Art In general, a tube dryer of this type includes a large number of tubes through which a material to be dried such as powdery coal flows in a direction from the upper end to the lower end in a rotating cylinder in an inclined position through which steam flows. Arranged in the axial direction of the rotary cylinder, a supply means for the dried material having an inclined plate structure is provided at the upper end side of the rotary cylinder, and the supply means for the dried cylinder has the same end as the supply means, It has a structure in which a scraping means for collecting the dried material and throwing it into the supply means is continuously provided in an annular shape. Tube dryers with such a structure
For example, it is described in West German Patent No. 611988.
【０００３】ところで、石炭などの貯留はヤードに野積
みして行われることが多く、野積みの石炭などは雨など
を吸水して湿っており、付着性があるが、とくに、そう
した石炭が粉砕されると、付着性は一層強くなる。また
湿った石炭が加熱されると、鉄系材料を著しく腐食する
性状（腐食性）があることが知られている。したがっ
て、上記の供給手段からチューブに供給される際に入り
きらず、こぼれ落ちた石炭が掻上げ手段で回収されたと
きに、掻上げ手段に付着し次第に堆積していったり、掻
上げ手段（通常、鉄系材料からなる）を腐食したりす
る。そこで従来は、掻上げ手段に付着した石炭を定期的
に清掃したり、掻上げ手段にライニングを施したりする
などの対策を講じている。[0003] Coal and the like are often stored in the yard in the open yard. Coal and the like in the open yard is wet due to the absorption of rain and the like, and has an adhesive property. Then, the adhesion becomes stronger. It is also known that when wet coal is heated, it has properties (corrosiveness) that significantly corrode iron-based materials. Therefore, when the coal supplied from the supply unit to the tube does not fit into the tube and the spilled coal is collected by the scraping unit, the coal gradually adheres to the scraping unit and gradually accumulates on the scraping unit. (Made of iron-based material). Therefore, conventionally, countermeasures have been taken such as periodically cleaning the coal adhering to the scraping means and lining the scraping means.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記し
た従来の対策では次のような不都合がある。すなわち、
定期的な清掃作業は手間がかかり、作業者の労力負担が
重く、また、そのような清掃作業の際には、装置を停止
する必要があるため設備稼働率が低下することになり、
効率的な運転を行うのに支障になる。However, the above conventional measures have the following disadvantages. That is,
Periodic cleaning work is time-consuming and labor intensive for workers, and in such a cleaning work, it is necessary to stop the equipment, so that the equipment operation rate decreases,
This hinders efficient operation.
【０００５】この発明は、たとえば、原料炭のような高
級の石炭は、粒子の含有水分は少ないが表面水分が多
く、表面水の表面張力によって粒子相互が接着するよう
な凝集や流路の壁面などへの付着が生じ易いが、このよ
うな表面水による付着性の強い石炭類でも、チューブ壁
のような高温の壁には付着しないことに着目して開発し
たものであって、掻上げ手段の石炭類などと接触する壁
面を高温にして石炭類などの付着防止を図ったコール・
イン・チューブドライヤを提供することを目的としてい
る。According to the present invention, for example, high-grade coal such as coking coal has a small amount of water contained in particles, but has a large amount of surface water, and agglomeration and wall surfaces of flow passages in which particles adhere to each other due to surface tension of surface water. Although coal is likely to adhere to the surface, it has been developed with a focus on the fact that even coals with high adhesion due to such surface water do not adhere to high-temperature walls such as tube walls. Coal that prevents the adhesion of coal etc. by raising the temperature of the wall that comes in contact with coal etc.
It aims to provide an in-tube dryer.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めにこの発明のコール・イン・チューブドライヤは、a)
蒸気が流通する傾斜姿勢の回転円筒体内に、粉粒状の被
乾燥物を傾斜上端から傾斜下端方向に流通させる多数の
チューブを前記回転円筒体の軸線方向に配列し、前記回
転円筒体の上端面に被乾燥物の供給手段を設け、この供
給手段側の回転円筒体の外周縁部に沿って、こぼれ落ち
た被乾燥物を回収し前記供給手段に投入する掻上げ手段
を環状に連続して設けたコール・イン・チューブドライ
ヤにおいて、b)前記掻上げ手段を半径方向内方が開口し
た断面略Ｕ字状の箱形構造に形成するとともに、その内
周壁の周囲に蒸気などの加熱媒体を導入するためのジャ
ケットを形成し、このジャケット内に加熱媒体を導入し
て前記内周壁を加熱するようにし、c)前記掻上げ手段の
内部をその円周方向に沿って一定の間ごとに、前記ジャ
ケットの対向する内周壁間に跨って架設される仕切部材
で仕切ったことを特徴としている。In order to achieve the above object, a call-in-tube dryer according to the present invention comprises:
In the rotating cylinder in the inclined posture through which the steam flows, a number of tubes are arranged in the direction of the axis of the rotating cylinder, in which a number of tubes for allowing the granular material to be dried to flow from the inclined upper end to the inclined lower end are arranged. A supply means for supplying the material to be dried is provided, and a scooping means for collecting the material to be dried which has fallen down and throwing it into the supply means is provided continuously in an annular shape along the outer peripheral edge of the rotating cylinder on the supply means side. In the call-in-tube dryer, b) the scraping means is formed in a box-shaped structure having a substantially U-shaped cross section with an inner opening in the radial direction, and a heating medium such as steam is introduced around the inner peripheral wall thereof. A jacket for heating the inner peripheral wall by introducing a heating medium into the jacket ;
The inside of the housing is moved at regular intervals along its circumference.
Partition member erected between opposing inner peripheral walls of the ket
It is characterized by partitioning by .
【０００７】請求項２記載のように、c)前記ジャケット
を円周方向に等間隔に複数のジャケット部に分割し、分
割した各ジャケット部の前記回転円筒体の回転方向側
に、前記回転円筒体内の蒸気を配管を介して導入し、各
ジャケット部の前記回転円筒体の反回転方向の傾斜下部
側から、配管を介してドレンを前記回転円筒体内へ戻す
ようにすることが好ましい。[0007] According to a second aspect of the present invention, c) the jacket is divided into a plurality of jacket portions at equal intervals in a circumferential direction, and each of the divided jacket portions is provided on the rotating direction side of the rotating cylinder body with the rotating cylinder. It is preferable that steam in the body is introduced through a pipe, and the drain is returned to the rotary cylinder through a pipe from a lower portion of each jacket portion in a direction opposite to the rotation direction of the rotary cylinder.
【０００８】請求項３記載のように、a)蒸気が流通する
傾斜姿勢の回転円筒体内に、粉粒状の被乾燥物を傾斜上
端から傾斜下端方向に流通させる多数のチューブを前記
回転円筒体の軸線方向に配列し、前記回転円筒体の上端
面に被乾燥物の供給手段を設け、この供給手段側の回転
円筒体の外周縁部に沿って、こぼれ落ちた被乾燥物を回
収し前記供給手段に投入する掻上げ手段を環状に連続し
て設けたコール・イン・チューブドライヤにおいて、B)
前記掻上げ手段を半径方向内方が開口した断面略Ｕ字状
の箱形構造に形成するとともに、その内周壁の周囲に加
熱媒体を導入するためのジャケットを形成し、このジャ
ケットを円周方向に等間隔に分割して形成した複数のジ
ャケット部と対応する各蒸発部を接続して全体を密封構
造のヒートパイプに構成して内部に加熱媒体を封入し、
前記蒸発部を前記回転円筒体の外周壁に密着させて配置
することにより前記加熱媒体の凝縮ドレンを気化させ、
その気化したガスを介して前記内周壁を加熱するように
してもよい。According to a third aspect of the present invention, a) a large number of tubes for allowing a granular material to be dried to flow from the inclined upper end to the inclined lower end in the rotating cylinder in the inclined position through which the steam flows. An arrangement is provided in the axial direction, and a supply means for the dried material is provided on the upper end surface of the rotary cylinder, and the spilled material to be dried is collected along the outer peripheral edge of the rotary cylinder on the supply means side. In a call-in-tube dryer provided with a ring-shaped continuous scraping means,
The scraping means is formed in a box-shaped structure having a substantially U-shaped cross section with an inner opening in the radial direction, and a jacket for introducing a heating medium is formed around the inner peripheral wall thereof. A plurality of jacket portions formed at equal intervals are connected to each of the corresponding evaporating portions to form a heat pipe having a sealed structure as a whole, and a heating medium is sealed therein.
By evaporating the condensed drain of the heating medium by arranging the evaporating portion in close contact with the outer peripheral wall of the rotating cylindrical body,
The inner peripheral wall may be heated via the vaporized gas.
【０００９】請求項４記載のように、d)前記掻上げ手段
の内部をその円周方向に沿って一定の間隔ごとに仕切り
部材を配して仕切るとともに、該仕切部材を前記ジャケ
ットの対向する内周壁間に跨って架設され半径方向に一
定の間隔をあけた複数本のパイプで構成するとよい。As set forth in claim 4, d) the scraping means
Partition at regular intervals along the circumference of the
A member is arranged and partitioned, and the partition member is
It is installed across the inner peripheral wall of the
It is good to consist of a plurality of pipes at regular intervals .
【００１０】[0010]
【作用】上記構成を有するこの発明のコール・イン・チ
ューブドライヤによると、回転円筒体のチューブに入ら
ず、こぼれ落ちた粉粒状石炭類つまり被乾燥物が、上向
きに開口した箇所の掻上げ手段内に落下することによっ
て受け止められ、回収される。そして、掻上げ手段が上
方位置へ移動してその開口が下向きになると、被乾燥物
が落下し、チューブ内に投入される。この間、掻上げ手
段内の被乾燥物は内周壁に付着しようとするが、内周壁
はその周囲のジャケットに導入される蒸気などの加熱媒
体で十分に加熱されるため、被乾燥物は内周壁には全く
付着せず、したがって内周壁などが腐食することもな
い。そして、回転円筒体が一方向に回転するのに伴っ
て、掻上げ手段内の、例えば粉砕され湿った状態の石炭
粒が円周方向に沿って一定間隔ごとに配した仕切り部材
によって押し上げられ、上方へ運ばれる。 According to the call-in-tube dryer of the present invention having the above-described structure, the powdery or granular coals which do not enter the tube of the rotating cylinder and fall, that is, the material to be dried, are collected in the scraping means at the location opened upward. It is received and collected by falling. When the scraping means moves to the upper position and the opening thereof faces downward, the object to be dried falls and is thrown into the tube. During this time, the material to be dried in the scraping means tends to adhere to the inner peripheral wall. However, since the inner peripheral wall is sufficiently heated by a heating medium such as steam introduced into the surrounding jacket, the material to be dried is Does not adhere at all, so that the inner peripheral wall and the like do not corrode. And as the rotating cylinder rotates in one direction
And in the scraping means, for example, crushed and wet coal
Partition members with grains arranged at regular intervals along the circumferential direction
And is carried upward.
【００１１】ところで前記掻上げ手段は回転円筒体の上
端側の周縁部に位置することから、回転円筒体内に導入
される蒸気によって回転円筒体の外周壁が加熱され、高
温になることから、その伝導熱で掻上げ手段もかなりの
温度に加熱されると一見考えられるが、実際には、回転
円筒体の直径は数メートルあり、板厚もかなり厚いにも
拘わらず、掻上げ手段の伝導伝熱方向の寸法がかなり大
きくなることから、回転円筒体から掻上げ手段への伝熱
効率が著しく低く（０．１前後）なるため、掻上げ手段
がその伝導熱で自然に加熱されるということは期待でき
ない。いいかえれば、本発明のように掻上げ手段を特別
に加熱するための手段を設けない限り、被乾燥物の付着
を防止したり、掻上げ手段の腐食を防止したりする作用
は生じない。Since the scraping means is located at the peripheral edge on the upper end side of the rotary cylinder, the outer wall of the rotary cylinder is heated by steam introduced into the rotary cylinder and becomes high temperature. At first glance, it can be considered that the conductive heat also heats the scraping means to a considerable temperature, but in practice, despite the fact that the rotating cylinder has a diameter of several meters and the plate thickness is quite large, the conductive transfer of the scraping means is quite large. Since the size in the heat direction is considerably large, the heat transfer efficiency from the rotating cylindrical body to the scraping means is extremely low (around 0.1). Can't expect. In other words, unless a means for specially heating the scraping means as in the present invention is provided, the action of preventing the adhesion of the object to be dried and the corrosion of the scraping means does not occur.
【００１２】請求項２記載のチューブドライヤでは、チ
ューブ内の石炭等の加熱乾燥用の、回転円筒体内に導入
された蒸気の一部が取り出されて掻上げ手段の各ジャケ
ット部へ送り込まれることにより、掻上げ手段の内周壁
が蒸気の温度（１６０℃前後）近くまで加熱される。こ
のように掻上げ手段の内周壁（鉄皮）温度が蒸気温度近
くに上昇するのは、被加熱（石炭）側に比べてジャケッ
ト側の蒸気の凝縮伝熱が十分に大きいからである。ま
た、掻上げ手段も回転円筒体と共回りすることから、外
部から蒸気を各ジャケット部へ供給するのに比べて配管
等の設備が簡素化されるうえに、回転円筒体内に導入さ
れた蒸気の一部を利用するので、熱源が共通で無駄がな
い。一方、各ジャケット部に送り込まれた蒸気は徐々に
凝縮され、ドレンとして排出され、回転円筒体内に戻さ
れるが、１つのジャケット部で凝縮されるドレン量は僅
かであることと、ジャケット部が下方位置に回転してき
たときに溜まっているドレンが、ジャケット部が上方位
置へ回転する間に逆Ｕ字状の配置になって傾斜下部側に
集められ、ジャケット部の下部（反回転方向）側から排
出されることから、ドレンは回転円筒体内にスムーズに
戻される。In the tube dryer according to the present invention, a part of the steam introduced into the rotating cylinder for heating and drying the coal or the like in the tube is taken out and sent to each jacket of the scraping means. Then, the inner peripheral wall of the scraping means is heated to near the temperature of the steam (around 160 ° C.). The reason why the temperature of the inner peripheral wall (steel shell) of the scraping means rises close to the steam temperature is that the condensation heat transfer of steam on the jacket side is sufficiently larger than that on the heated (coal) side. In addition, since the scraping means also rotates together with the rotating cylinder, facilities such as piping are simplified as compared to supplying steam to each jacket portion from the outside, and the steam introduced into the rotating cylinder is further simplified. Because a part of the heat source is used, the heat source is common and there is no waste. On the other hand, the steam fed into each jacket portion is gradually condensed, discharged as drain, and returned to the rotating cylinder. However, the amount of drain condensed in one jacket portion is small, and The drain that has accumulated when rotating to the position is collected in the inclined lower side in an inverted U-shaped arrangement while the jacket rotates to the upper position, and is collected from the lower (anti-rotational direction) side of the jacket. Since the liquid is discharged, the drain is smoothly returned into the rotating cylinder.
【００１３】請求項３記載のチューブドライヤでは、密
封されたジャケット部内に封入された加熱媒体が掻上げ
手段の内周壁を加熱したのち凝縮されてドレンになる
が、このドレンは、掻上げ手段の一方が回転円筒体とと
もにやや下向き傾斜していることと、掻上げ手段が回転
円筒体と一体になってほぼ１８０゜回転して上下の向き
が変更されることによって、つまり蒸発部とこれに接続
されたジャケット部の向きがほぼ反対になることによっ
て生じる重力流により蒸発部へ流入し、そこで回転円筒
体内の蒸気による熱でドレンが気化する。こうして気化
されたガスはジャケット部へ流入し、再び掻上げ手段の
内周壁を加熱する。その他の作用は、上記請求項１のチ
ューブドライヤと共通する。[0013] In the tube dryer according to the third aspect, the heating medium sealed in the sealed jacket portion heats the inner peripheral wall of the scraping means and is condensed to form a drain. One is inclined slightly downward with the rotating cylinder, and the scraping means is rotated by approximately 180 ° integrally with the rotating cylinder to change the vertical direction. The jacket flows into the evaporator due to the gravitational flow generated when the direction of the jacket portion is substantially reversed, where the drain is vaporized by the heat of the steam in the rotating cylinder. The gas thus vaporized flows into the jacket portion and heats the inner peripheral wall of the scraping means again. Other functions are common to the tube dryer of the first aspect.
【００１４】請求項４記載のチューブドライヤでは、回
転円筒体が一方向に回転するのに伴って、掻上げ手段内
の、例えば粉砕され湿った状態の石炭粒が半径方向に一
定間隔をあけた複数本のパイプからなる仕切り部材によ
って押し上げられ、上方へ運ばれると同時に、石炭粒が
パイプの丸みで揉みほぐされながらその一部がパイプの
間の隙間を通り下方側に隣接する部屋へ移動する。ま
た、パイプもジャケット内に導入された蒸気により加熱
されるから、石炭粒の付着やそれによる腐食は防止され
る。In the tube dryer according to the fourth aspect, as the rotary cylinder rotates in one direction, for example, the crushed and wet coal particles in the scraping means are radially reduced by one.
It is pushed up by a partition member consisting of a plurality of pipes spaced at regular intervals, and is transported upward.At the same time, some of the coal particles are rubbed and loosened by the roundness of the pipe, and a part of it passes through the gap between the pipes and is adjacent to the lower side Move to the room you want. Further, since the pipe is also heated by the steam introduced into the jacket, adhesion of coal particles and corrosion due to the coal particles are prevented.
【００１５】[0015]
【実施例】以下、本発明のコール・イン・チューブドラ
イヤの実施例を図面に基づいて詳細を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a call-in-tube dryer of the present invention will be described below in detail with reference to the drawings.
【００１６】図１はコール・イン・チューブドライヤの
実施例を示す側面図、図２は図１のＡ−Ａ線矢視図、図
３は図１のコール・イン・チューブドライヤの側面視断
面図である。FIG. 1 is a side view showing an embodiment of a call-in-tube dryer, FIG. 2 is a view taken along line AA of FIG. 1, and FIG. 3 is a cross-sectional view of the call-in-tube dryer of FIG. FIG.
【００１７】図１〜図３に示すように、コール・イン・
チューブドライヤは中空構造の回転円筒体１を備えてお
り、この回転円筒体１が、所定距離をあけて立設された
機台２と機台３との間に回転可能に支持されている。機
台２の高さを機台３よりもやや高く設定してあるので、
回転円筒体１は図１の左側（出口側）から右側（入口
側）にかけて上向きに傾斜している。この回転円筒体１
内には、その軸線方向に沿って多数のチューブ４が図２
のように僅かな間隙をあけて平行に配列されている。こ
の多数のチューブ４の両端部は、図３のように回転円筒
体１の両端を閉蓋する左右の管板５、６に、これらを貫
通して支持されている。As shown in FIG. 1 to FIG.
The tube dryer includes a rotating cylindrical body 1 having a hollow structure, and the rotating cylindrical body 1 is rotatably supported between a machine stand 2 and a machine stand 3 erected at a predetermined distance. Since the height of the machine 2 is set slightly higher than the machine 3,
The rotating cylinder 1 is inclined upward from the left side (outlet side) to the right side (inlet side) in FIG. This rotating cylinder 1
Inside, a number of tubes 4 are arranged along its axial direction as shown in FIG.
Are arranged in parallel with a slight gap. Both ends of the large number of tubes 4 are supported by right and left tube plates 5 and 6 for closing both ends of the rotary cylindrical body 1 as shown in FIG.
【００１８】回転円筒体１の管板５、６の中心部には、
図３に示すように中空構造のトラニオン・ジャーナル
７、８が設けられており、この両トラニオン・ジャーナ
ル７、８は、ボールベアリングなどの軸受構造体９、１
０により、機台２、３上に軸支されている。また、一方
（上部側）のトラニオン・ジャーナル７には、機台２の
上端部に設置された駆動モータ１１が減速機１２を介し
て接続され、回転円筒体１が駆動されるようになってい
る。At the center of the tube sheets 5 and 6 of the rotating cylindrical body 1,
As shown in FIG. 3, there are provided trunnion journals 7 and 8 having a hollow structure, and these trunnion journals 7 and 8 are provided with bearing structures 9 and 1 such as ball bearings.
By 0, it is supported on the machine bases 2 and 3. A drive motor 11 installed at the upper end of the machine base 2 is connected to one (upper side) trunnion journal 7 via a speed reducer 12, so that the rotary cylinder 1 is driven. I have.
【００１９】回転円筒体１の傾斜上端面（入口面）の一
側方に、コークス原料炭などの粉粒状被乾燥物を各チュ
ーブ４の上端側入口に投入する供給手段１３が、図２の
ように垂直方向に配設されている。この供給手段１３の
本体部分は、図３のように上方にかけて回転円筒体１と
の間隔が広がるように傾斜し、複数段の傾斜した投入棚
１３ａを垂直方向に一定の間隔で備えている。On one side of the inclined upper end surface (entrance surface) of the rotary cylindrical body 1, a supply means 13 for feeding powdery and granular materials to be dried such as coke coking coal into the upper end side entrance of each tube 4 is provided as shown in FIG. So that they are arranged vertically. As shown in FIG. 3, the main body of the supply means 13 is inclined so that the interval between the supply means 13 and the rotating cylindrical body 1 is increased, and a plurality of inclined input shelves 13a are provided at regular intervals in the vertical direction.
【００２０】回転円筒体１の傾斜上端（入口）側の外周
縁部には、被乾燥物の掻上げ手段１４が環状に連続して
設けられている。本例では、掻上げ手段１４は断面形状
が略Ｕ字状（コの字状を含む）の箱形構造からなり、そ
の開口が半径方向内方を向くように、つまり中心部のト
ラニオン・ジャーナル７の方向に指向されている。供給
手段１３からこぼれ落ちた被乾燥物は、掻上げ手段１４
に受け止められ、回転円筒体１の回転に伴って上方に運
ばれて落下し、各チューブ４の上端側入口に投入され
る。また、図２のように供給手段１３の上部からトラニ
オン・ジャーナル７上に向けて分散板１５が傾斜して配
設されている。分散板１５は、供給手段１３や掻上げ手
段１４からの粉粒体を受け止め、分散板１５の傾斜に沿
って下方に移動しながらチューブ４の入口に投入され
る。チューブ４内に投入されなかった被乾燥物は、再び
掻上げ手段１４に受け止められ、上記の動作を繰り返
す。At the outer peripheral edge on the inclined upper end (inlet) side of the rotary cylindrical body 1, a means 14 for picking up the material to be dried is continuously provided in an annular shape. In this example, the scraping means 14 has a box-shaped structure having a substantially U-shaped (including U-shaped) cross section, and its opening faces inward in the radial direction, that is, the trunnion journal at the center. 7 are directed. The material to be dried spilled from the supply means 13 is lifted by the scraping means 14
, And is carried upward by the rotation of the rotary cylinder 1, falls, and is introduced into the upper end side entrance of each tube 4. Further, as shown in FIG. 2, a dispersion plate 15 is arranged to be inclined from the upper part of the supply means 13 toward the trunnion journal 7. The dispersion plate 15 receives the granular material from the supply unit 13 and the scraping unit 14, and enters the inlet of the tube 4 while moving downward along the inclination of the dispersion plate 15. The material to be dried that has not been put into the tube 4 is received by the scraping means 14 again, and the above operation is repeated.
【００２１】上記した構成はコール・イン・チューブド
ライヤの公知の基本構造を示すものであるが、本発明は
以下のような特徴的構成を具備する。すなわち、図４は
回転円筒体１の傾斜上端部および掻上げ手段１４の一部
を切欠いた斜視図、図５(ａ)は掻上げ手段１４の一部を
やや拡大して示す斜視断面図、図５(ｂ)は図５(ａ)のｂ
部分の拡大断面図である。図６は掻上げ手段の他の実施
例を示すもので、図６(ａ)は掻上げ手段の一部正面図、
図６(ｂ)は図６(ａ)のｂ−ｂ線矢視図、図６(ｃ)は図６
(ｂ)のｃ−ｃ線矢視図である。The above-described structure shows a known basic structure of a call-in-tube dryer, but the present invention has the following characteristic structure. That is, FIG. 4 is a perspective view in which the inclined upper end of the rotary cylindrical body 1 and a part of the scraping means 14 are cut away, and FIG. 5A is a perspective sectional view showing a part of the scraping means 14 in a slightly enlarged manner. FIG. 5 (b) is a diagram corresponding to FIG.
It is an expanded sectional view of a part. FIG. 6 shows another embodiment of the scraping means, and FIG. 6 (a) is a partial front view of the scraping means.
FIG. 6B is a view taken along line bb of FIG. 6A, and FIG.
It is a cc line arrow view of (b).
【００２２】図４に示すように、掻上げ手段１４は円周
方向に等間隔に区分された複数個（本例では２４個）の
掻上げボックス１４ａからなり、各掻上げボックス１４
ａの周壁を構成する断面Ｕ字状の壁は二重構造、つまり
内周壁１４ｂと外周壁１４ｃの間に、蒸気を導入するた
めの中空の加熱用ジャケット（請求の範囲におけるジャ
ケット部に相当）１４ｄが形成されている。回転円筒体
１の外周壁には、本例では、円周方向に１２０゜間隔で
二重管状のノズル１７を回転円筒体１の内部に連通して
取り付けられ、ノズル１７の中心部を貫通してドレン
（熱水）ヘッダ１８の一端が接続されるとともに、ノズ
ル１７の外周側に蒸気ヘッダ１９の一端が接続されてい
る。ドレンヘッダ１８および蒸気ヘッダ１９の他端は、
栓１８ａ、１９ａによりそれぞれ閉塞されている。As shown in FIG. 4, the scooping means 14 comprises a plurality of (in this example, 24) scooping boxes 14a divided at equal intervals in the circumferential direction.
The wall having a U-shaped cross section constituting the peripheral wall of a is a double structure, that is, a hollow heating jacket for introducing steam between the inner peripheral wall 14b and the outer peripheral wall 14c (corresponding to a jacket portion in the claims). 14d is formed. In this example, a double tubular nozzle 17 is attached to the outer peripheral wall of the rotary cylinder 1 at intervals of 120 ° in the circumferential direction so as to communicate with the inside of the rotary cylinder 1, and penetrates the center of the nozzle 17. One end of a drain (hot water) header 18 is connected, and one end of a steam header 19 is connected to the outer peripheral side of the nozzle 17. The other ends of the drain header 18 and the steam header 19 are
They are closed by plugs 18a and 19a, respectively.
【００２３】各ジャケット１４ｄの傾斜下面側の、回転
円筒体１の回転方向側で半径方向外方に蒸気導入管２１
ａが連結され、この蒸気導入管２１ａと蒸気ヘッダ１９
とが蒸気管２１により接続されている。また、各ジャケ
ット１４ｄの傾斜下面側の、回転円筒体１の反回転方向
側で半径方向内方にドレン排水管２０ａが連結され、こ
のドレン排水管２０ａとドレンヘッダ１８とがドレン管
２０により接続されている。この構成により、回転円筒
体１内の蒸気が、ノズル１７の外周から蒸気ヘッダ１９
−蒸気管２１−蒸気導入管１９ａを順に通ってジャケッ
ト１４ｄ内に流入し、掻上げボックス１４ａのとくに内
周壁１４ｂを加熱して高温（蒸気温度近く、すなわち１
６０℃程度）に保ち、粉粒状石炭類の付着を防止する。
そして、蒸気が冷やされてドレン（熱水）になると、回
転円筒体１の反時計方向への回転に伴って、掻上げボッ
クス１４ａが上方位置に移動するときに、図４の切欠箇
所のようにジャケット１４ｄ内の下方へ集められ、ドレ
ン排水管２０ａ−ドレン管２０−ドレンヘッダ１８およ
びノズル１７の中心部を順に通って回転円筒体１内に回
収される。The steam introduction pipes 21 extend radially outward on the rotation lower side of the rotary cylinder 1 on the inclined lower surface side of each jacket 14d.
a, and the steam introduction pipe 21a and the steam header 19
Are connected by a steam pipe 21. In addition, a drain drain pipe 20a is connected radially inward on the inclined lower surface side of each jacket 14d on the anti-rotation direction side of the rotary cylindrical body 1, and the drain drain pipe 20a and the drain header 18 are connected by the drain pipe 20. Have been. With this configuration, the steam in the rotating cylinder 1 is transferred from the outer periphery of the nozzle 17 to the steam header 19.
-Steam pipe 21-The steam flows in the jacket 14d sequentially through the steam introduction pipe 19a, and heats the inner wall 14b of the scraping box 14a, in particular, the inner peripheral wall 14b to a high temperature (near the steam temperature, i.e., 1).
(Approximately 60 ° C.) to prevent adhesion of powdered and granular coals.
Then, when the steam is cooled and drained (hot water), as the rotating box 1a moves to the upper position with the rotation of the rotary cylinder 1 in the counterclockwise direction, as shown in a cutout portion in FIG. Is collected downward in the jacket 14d, and is collected in the rotary cylindrical body 1 in order through the drain drain pipe 20a-the drain pipe 20-the drain header 18 and the center of the nozzle 17.
【００２４】各掻上げボックス１４ａは、詳しくは図５
(ａ)のように、Ｕ字状内周壁１４ｂとＵ字状外周壁１４
ｃと、両周壁の連結板１４ｅと、隣接するジャケット１
４ｄ間の仕切板１４ｆとで構成され、内周壁１４ｂと外
周壁１４ｃ同士は、図５(ｂ)のように、外周壁１４ｃの
適所に形成した“いぬきえくぼ１４ｇ”の端面を内周壁
１４ｂに溶着することにより、ジャケット１４ｄの空間
が確保されている。また、隣接する掻上げボックス１４
ａ・１４ａの円周方向の各中間位置に、複数本（本例で
は３本）のパイプ材２２を図の上下方向（回転円筒体１
の半径方向）に間隔をあけて並べたうえ、パイプ材２２
の端部をジャケット１４ｄ内に挿入して溶着することに
より内周壁１４ｂの対向する壁面間に架設され、掻上げ
手段１４内を円周方向に等間隔に２４区画に仕切ってい
る。Each raising box 14a is described in detail in FIG.
(a), the U-shaped inner peripheral wall 14b and the U-shaped outer peripheral wall 14
c, the connecting plate 14e of both peripheral walls, and the adjacent jacket 1
5d, the inner peripheral wall 14b and the outer peripheral wall 14c are connected to each other with the end face of the "inking recess 14g" formed at an appropriate position on the outer peripheral wall 14c as shown in FIG. 5B. , The space of the jacket 14d is secured. In addition, the adjacent scraping box 14
A plurality of (three in this example) pipe members 22 are placed at respective intermediate positions in the circumferential direction of a.
In the radial direction) and the pipe material 22
Is inserted between the jackets 14d and welded to each other so as to span between the opposing walls of the inner peripheral wall 14b, thereby dividing the inside of the scraping means 14 into 24 sections at equal intervals in the circumferential direction.
【００２５】ところで、上記実施例の掻上げ手段１４に
ついて具体的にドレンの回収量を算出したところ、回転
円筒体１が１０ｒｐｍの回転速度で一回転したときの一
つの掻上げボックス１４ａのジャケット１４ｄ当たりの
ドレン回収量が２０ｇと極めて少ない量になった。条件
としては、被乾燥物が石炭粒の場合の供給量を、乾燥状
態で２００トン／時とし、回転円筒体１内に導入する蒸
気の温度を１６４℃、同圧力を６気圧とし、このときの
石炭粒の熱伝達率を９０ｋｃａｌ/ｍ2ｈ℃、蒸気の熱伝
達率を５０００ｋｃａｌ/ｍ2ｈ℃にそれぞれ設定した。
また、内周壁１４ｂの鉄皮の厚みを１０ｍｍ、同熱伝導
率を４０ｋｃａｌ/ｍ2ｈ℃に設定した。さらに、回転円
筒体１の直径を６ｍ、掻上げボックス１４ａの深さを
０．６ｍに設定した。この結果、各ジャケット１４ｄに
おけるドレン回収量が上記のとおり２０ｇと僅かな量に
なること、そして回転円筒体１が傾斜していること、お
よび掻上げボックス１４ａの各ジャケット１４ｄが逆Ｕ
字状で回転円筒体１の回転に伴って上下方向で反転する
ことから、確実にドレンを回収して回転円筒体１内に戻
すことができるとともに、そのように戻したときでも、
回転円筒体１内の各チューブ４内の石炭の加熱（乾燥）
に影響を与えることはないと判断される。By the way, when the amount of drain collected by the scraping means 14 of the above embodiment is specifically calculated, the jacket 14d of one scraping box 14a when the rotating cylinder 1 makes one rotation at a rotation speed of 10 rpm. The amount of collected drain per unit was as extremely small as 20 g. As the conditions, the supply amount when the material to be dried is coal particles is 200 tons / hour in a dry state, the temperature of the steam introduced into the rotary cylinder 1 is 164 ° C., and the pressure is 6 atm. The heat transfer coefficient of coal particles was set to 90 kcal / m 2 h ° C, and the heat transfer coefficient of steam was set to 5000 kcal / m 2 h ° C.
The thickness of the steel shell of the inner peripheral wall 14b was set to 10 mm, and the thermal conductivity was set to 40 kcal / m 2 h ° C. Further, the diameter of the rotating cylinder 1 was set to 6 m, and the depth of the scraping box 14a was set to 0.6 m. As a result, the amount of drain collected in each jacket 14d is as small as 20 g as described above, the rotating cylinder 1 is inclined, and each jacket 14d of the scraping box 14a is inverted U
Since it is inverted in the vertical direction with the rotation of the rotary cylinder 1 in the shape of a letter, it is possible to reliably collect the drain and return it to the inside of the rotary cylinder 1.
Heating (drying) of coal in each tube 4 in rotating cylinder 1
Is determined to have no effect.
【００２６】図６に示す掻上げ手段１４’は、基本的に
は図５のものと共通するが、次の点が異なる。すなわ
ち、図６(ａ)〜(ｃ)のように、各掻上げボックス１４ａ
の中間部に２枚のＵ字枠状の補強板１４ｈで、外周壁１
４ｂを補強したこと、また各掻上げボックス１４ａの両
端は仕切板１４ｆで閉塞したうえで、隣接する仕切板１
４ｆ・１４ｆを継ぎ板１４ｊで連結したことである。そ
の他の構成については共通しているので、図５の掻上げ
ボックス１４ａと共通の部材については同一の符号を用
いて図中に示し、説明を省略する。The scraping means 14 'shown in FIG. 6 is basically the same as that shown in FIG. 5, but differs in the following point. That is, as shown in FIGS.
The outer peripheral wall 1 is provided with two U-shaped reinforcing plates 14h
4b is reinforced, and both ends of each hoisting box 14a are closed with a partition plate 14f.
4f and 14f are connected by a connecting plate 14j. Since other configurations are common, members common to the scraping box 14a in FIG. 5 are denoted by the same reference numerals in the drawing, and description thereof is omitted.
【００２７】図７は本発明にかかるヒートパイプ方式の
掻上げ手段の実施例を示すもので、図７(ａ)は最上位置
に移動した状態の一部を切り欠いた断面図、図７(ｂ)は
最下位置に移動した状態の一部を切り欠いた断面図であ
る。FIG. 7 shows an embodiment of a heat pipe type scraping means according to the present invention. FIG. 7 (a) is a partially cutaway sectional view showing a state of being moved to an uppermost position. (b) is a cross-sectional view in which a part of the state moved to the lowermost position is cut away.
【００２８】図７(ａ)(ｂ)に示すように、この方式の掻
上げ手段２４は掻上げボックス２４ａと蒸発部２５とを
一体化した構造で、蒸発部２５は回転円筒体１の外周面
上の傾斜上端部に密着して設けられている。掻上げボッ
クス２４ａは半径方向内方を開口したコの字状の断面か
らなり、内周壁２４ｂの底面側と蒸発部２５側の側面側
に断面Ｌ状に外周壁２４ｃを設けて二重構造にし、その
中空部をジャケット２４ｄに形成している。また、蒸発
部２５もボックス構造にして内部を蒸発室２５ａに形成
し、この蒸発室２５ａとジャケット２４ｄの境界壁を構
成する外周壁２４ｃの垂直部２４ｅに連通口２６を開口
し、蒸発室２５ａとジャケット２４ｄを相互に連通する
とともに、両室全体を密封構造にしたヒートパイプに構
成して、加熱媒体としての所定量の水を封入している。
連通口２６は垂直部２４ｅにおいて回転円筒体１の反回
転方向側で、かつ上方位置にきたときに連通口２６の下
端側が図７(ａ)のように蒸発部２５の蒸発板２５ｂと面
一になる一方、下方位置にきたときに連通口２６の下端
側が図７(ｂ)のように蒸発部２５の天板２５ｃよりやや
高い位置になることにより、蒸発室２５ａ内にドレン
（熱水）が溜まっているときにジャケット２４ｄへ流れ
込まないように、設定している。図中の符号２７は、円
周方向に隣接する掻上げボックス２４ａ・２４ａの間お
よび蒸発部２５・２５の間の仕切り壁である。As shown in FIGS. 7 (a) and 7 (b), the scooping means 24 of this system has a structure in which a scooping box 24a and an evaporator 25 are integrated, and the evaporator 25 is provided on the outer periphery of the rotary cylindrical body 1. It is provided in close contact with the inclined upper end on the surface. The scraping box 24a has a U-shaped cross section opened radially inward, and an outer peripheral wall 24c having an L-shaped cross section is provided on the bottom side of the inner peripheral wall 24b and the side surface on the side of the evaporator 25 to form a double structure. The hollow portion is formed in the jacket 24d. The evaporating section 25 also has a box structure, the inside of which is formed in an evaporating chamber 25a. A communication port 26 is opened in a vertical portion 24e of an outer peripheral wall 24c which forms a boundary wall between the evaporating chamber 25a and the jacket 24d. And a jacket 24d are communicated with each other, and a heat pipe in which both the entire chambers have a sealed structure is filled with a predetermined amount of water as a heating medium.
The communication port 26 is on the side opposite to the rotating cylinder 1 in the vertical portion 24e, and when it reaches the upper position, the lower end of the communication port 26 is flush with the evaporating plate 25b of the evaporating section 25 as shown in FIG. On the other hand, when it comes to the lower position, the lower end side of the communication port 26 is slightly higher than the top plate 25c of the evaporator 25 as shown in FIG. 7B, so that the drain (hot water) is stored in the evaporator chamber 25a. Is set so as not to flow into the jacket 24d when accumulated. Reference numeral 27 in the drawing denotes a partition wall between the scraping boxes 24a, 24a circumferentially adjacent to each other and between the evaporating units 25, 25.
【００２９】したがって、本例のヒートパイプ式掻上げ
手段２４によれば、回転円筒体１の回転に伴って掻上げ
ボックス２４ａが上方位置（図７(ａ)）まで移動して通
過し下方へ移動する間に、掻上げボックス２４ａが上方
位置への移動過程でジャケット２４ｄから蒸発室２５ａ
内に流入したドレンＤが回転円筒体１内の蒸気の熱で蒸
発して蒸気Ｓになり、連通口２６を通ってジャケット２
４ｄへ移動する。そしてその蒸気Ｓで掻上げボックス２
４ａの内周壁２４ｂを加熱して高温に保持し、掻上げボ
ックス２４ａで回収された石炭等の粉粒体Ｃが内周壁２
４ｂに付着するのを阻止する。Therefore, according to the heat pipe type scraping means 24 of the present embodiment, the scraping box 24a moves to the upper position (FIG. 7 (a)) and moves downward with the rotation of the rotary cylindrical body 1 and moves downward. During the movement, the scraping box 24a moves from the jacket 24d to the evaporation chamber 25a in the process of moving to the upper position.
The drain D that has flowed into the inside is evaporated by the heat of the steam in the rotary cylindrical body 1 to become steam S, and passes through the communication port 26 to form the jacket 2.
Move to 4d. And the steam S raises the box 2
4a, the inner peripheral wall 24b is heated and maintained at a high temperature.
4b.
【００３０】ジャケット２４ｄ内の蒸気Ｓはとくに内周
壁２４ｂで熱を奪われることによって水滴（ドレン）Ｄ
となり、ジャケット２４ｄ内に徐々に溜まっていき、下
方位置（図７(ｂ)）を通過して上方位置（図７(ａ)）へ
移動するときに、連通口２６から蒸発室２５ａへ流れ込
む。しかし、いったん蒸発室２５ａ内に流れ込んだドレ
ンＤは、ジャケット２４ｄへは戻らない。このようにし
て、あらかじめ封入された加熱媒体（水）を介し、回転
円筒体１内の蒸気で間接的に掻上げボックス２４ａの内
周壁２４ｂを加熱することができる。The steam S in the jacket 24d is deprived of heat by the inner peripheral wall 24b, so that a water droplet (drain) D
And gradually accumulates in the jacket 24d and flows from the communication port 26 into the evaporation chamber 25a when passing through the lower position (FIG. 7B) and moving to the upper position (FIG. 7A). However, the drain D once flowing into the evaporation chamber 25a does not return to the jacket 24d. In this manner, the inner peripheral wall 24b of the scraping box 24a can be heated indirectly by the steam in the rotating cylinder 1 via the heating medium (water) sealed in advance.
【００３１】ところで、本実施例の場合にジャケット２
４ｄの容積を４５００ｃｃに設定して、そこに封入すべ
き水量を算出したところ５９５ｃｃとなり、このときの
回転円筒体１の一回転当たりの蒸発量は４ｃｃとなっ
た。掻上げボックス２４ａの内周壁２４ｂの底部付近の
温度は蒸気温度近くまで上昇することから、掻上げボッ
クス２４ａの内周壁２４ｂの開口端における温度を９１
℃に設定して算出したので、ヒートパイプ方式にしても
十分に効果があるものと判断される。なお、その他の条
件は上記した最初の実施例で用いた数値と同一にした。By the way, in the case of this embodiment, the jacket 2
The volume of 4d was set to 4500 cc, and the amount of water to be filled therein was calculated to be 595 cc. At this time, the amount of evaporation per rotation of the rotating cylinder 1 was 4 cc. Since the temperature near the bottom of the inner peripheral wall 24b of the scraping box 24a rises to near the steam temperature, the temperature at the opening end of the inner peripheral wall 24b of the scraping box 24a is increased by 91%.
Since the calculation was performed by setting the temperature to ° C., it is determined that the heat pipe method is sufficiently effective. Other conditions were the same as those used in the first embodiment.
【００３２】以上、本発明のコール・イン・チューブド
ライヤの実施例を示したが、上記の実施例に限定される
ものではなく、例えば回転円筒体１内の蒸気に代えて、
外部から蒸気などの加熱媒体を上記ジャケット１４ｄ内
に導入することもできる。ただし、この場合には、ロー
タリジョイントなどの導入手段を用いる必要がある。ま
た、本発明のコール・イン・チューブドライヤは主とし
て石炭類の乾燥に用いられるが、石炭類以外の粉粒体の
乾燥にも使用できることはいうまでもない。Although the embodiment of the call-in-tube dryer of the present invention has been described above, the present invention is not limited to the above-described embodiment. For example, instead of the steam in the rotary cylindrical body 1,
A heating medium such as steam can be introduced into the jacket 14d from the outside. However, in this case, it is necessary to use an introduction means such as a rotary joint. In addition, although the coal-in-tube dryer of the present invention is mainly used for drying coals, it goes without saying that it can also be used for drying powders other than coals.
【００３３】[0033]
【発明の効果】以上説明したことから明らかなように、
この発明の構成によれば、次のような効果が得られる。As is apparent from the above description,
According to the configuration of the present invention, the following effects can be obtained.
【００３４】(1) 供給手段等からこぼれ落ちた石炭等の
粉粒状被乾燥物を回収する掻上げ手段の、被乾燥物との
接触面（内周壁）を高温に加熱するので、被乾燥物が付
着性の強い石炭類でも全く付着せず、清掃作業による装
置の停止がふようになり、長期間安定した連続運転が可
能になる。また、回転円筒体の回転に伴って掻上げ手段
内の粉粒状被乾燥物が仕切り部材により上方へ運ばれ
る。 (1) Since the contact surface (inner peripheral wall) of the scraping means for collecting powdery and granular materials to be dried such as coal spilled from the supply means and the like with the material to be dried is heated to a high temperature, the material to be dried is heated. Even coal with strong adhesiveness does not adhere at all, and the shutdown of the device due to the cleaning operation is prolonged, and stable continuous operation for a long period of time becomes possible. In addition, with the rotation of the rotating cylinder,
The powdery and granular material to be dried inside is carried upward by the partition member
You.
【００３５】(2) 請求項２記載のチューブドライヤで
は、回転円筒体内に導入される蒸気の一部を利用するの
で、別の加熱媒体源が不要で経済的であり、また掻上げ
手段も回転円筒体と共回りすることから、外部から蒸気
を各ジャケット部へ供給するのに比べて配管等の設備が
簡素化される。しかも各ジャケット部内で凝縮されるド
レンの量が僅かで、ドレンは回転円筒体内に戻して処理
することができるので、ドレン処理が容易なうえ、ドレ
ンの排出設備も簡素化される。(2) In the tube dryer according to the second aspect, since a part of the steam introduced into the rotary cylinder is used, a separate heating medium source is not required, so that it is economical, and the scraping means also rotates. The co-rotation with the cylindrical body simplifies facilities such as piping as compared to supplying steam to each jacket portion from the outside. In addition, the amount of drain condensed in each jacket portion is small, and the drain can be returned to the rotary cylinder for processing. Therefore, drain processing is easy and the drain discharge facility is simplified.
【００３６】(3) 請求項３記載のチューブドライヤで
は、ヒートパイプ内に封入した加熱媒体を回転円筒体内
の蒸気で加熱し、加熱媒体を介して間接的に掻上げ手段
の内周壁を加熱するので、設備のイニシャルコストはや
や高くなるが、配管等の設備が不要になるうえに、メン
テナンスも容易になる。(3) In the tube dryer according to the third aspect, the heating medium sealed in the heat pipe is heated by the steam in the rotating cylinder, and the inner peripheral wall of the scraping means is indirectly heated via the heating medium. Therefore, the initial cost of the equipment is slightly higher, but equipment such as piping is not required, and maintenance is easy.
【００３７】(4) 請求項４記載のチューブドライヤで
は、回転円筒体の回転に伴って掻上げ手段内の粉粒状被
乾燥物が仕切り部材により上方へ運ばれると同時に揉み
ほぐされるようにしてさばかれるほか、仕切り部材への
被乾燥物の付着やそれによる腐食が防止される。(4) In the tube dryer according to the fourth aspect, the granular material to be dried in the raking means is transported upward by the partitioning member and is rubbed and crushed simultaneously with the rotation of the rotary cylinder. In addition to the above, the adhesion of the material to be dried to the partition member and the corrosion due to it are prevented.
【図１】本発明のコール・イン・チューブドライヤの全
体概要を示す側面図である。FIG. 1 is a side view showing an overall outline of a call-in-tube dryer of the present invention.
【図２】図１のＡ−Ａ線矢視図である。FIG. 2 is a view taken along the line AA of FIG. 1;
【図３】図１のチューブドライヤの側面視断面図であ
る。FIG. 3 is a sectional side view of the tube dryer of FIG. 1;
【図４】回転円筒体１の傾斜上端部および本発明の特徴
部分である掻上げ手段１４の一部を切欠いた斜視図であ
る。FIG. 4 is a perspective view in which the inclined upper end portion of the rotary cylindrical body 1 and a part of a scraping means 14 which is a characteristic part of the present invention are cut away.
【図５】図５(ａ)は掻上げ手段１４の一部をやや拡大し
て示す斜視断面図、図５(ｂ)は図５(ａ)のｂ部分の拡大
断面図である。5 (a) is a perspective sectional view showing a part of the scraping means 14 in a slightly enlarged manner, and FIG. 5 (b) is an enlarged sectional view of a part b in FIG. 5 (a).
【図６】掻上げ手段の他の実施例を示すもので、図６
(ａ)は掻上げ手段の一部正面図、図６(ｂ)は図６(ａ)の
ｂ−ｂ線矢視図、図６(ｃ)は図６(ｂ)のｃ−ｃ線矢視図
である。FIG. 6 shows another embodiment of the scraping means.
6 (a) is a partial front view of the scraping means, FIG. 6 (b) is a view taken along the line bb of FIG. 6 (a), and FIG. 6 (c) is a line cc of FIG. 6 (b). FIG.
【図７】本発明にかかるヒートパイプ方式の掻上げ手段
の実施例を示すもので、図７(ａ)は最上位置に移動した
状態の一部を切り欠いた断面図、図７(ｂ)は最下位置に
移動した状態の一部を切り欠いた断面図である。FIG. 7 (a) shows an embodiment of a heat pipe type scraping means according to the present invention, and FIG. 7 (a) is a partially cut-away sectional view showing a state of being moved to an uppermost position, and FIG. 7 (b). FIG. 4 is a cross-sectional view of a state in which it has moved to a lowermost position, with a part cut away.
１ 回転円筒体 ２・３ 機台 ４ チューブ ５・６ 管板 ７・８ トラニオン・ジャーナル １１ 駆動モータ １３ 供給手段 １４・１４’・２４ 掻上げ手段 １４ａ・２４ａ 掻上げボックス １４ｂ・２４ｂ 内周壁 １４ｃ・２４ｃ 外周壁 １４ｄ・２４ｄ ジャケット １７ ノズル １８ ドレン（熱水）ヘッダ １９ 蒸気ヘッダ ２０ ドレン管 ２１ 蒸気管 ２５ 蒸発部 ２５ａ 蒸発室 ２６ 連通口 DESCRIPTION OF SYMBOLS 1 Rotating cylindrical body 2.3 Machine stand 4 Tube 5.6 Tube plate 7.8 Trunnion journal 11 Drive motor 13 Supply means 14, 14 ', 24 Raising means 14a, 24a Raising box 14b, 24b Inner peripheral wall 14c, 24c Outer peripheral wall 14d / 24d Jacket 17 Nozzle 18 Drain (hot water) header 19 Steam header 20 Drain pipe 21 Steam pipe 25 Evaporator 25a Evaporation chamber 26 Communication port
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｆ２６Ｂ 25/00 Ｆ２６Ｂ 25/00 Ｊ (72)発明者 長浜 武司 兵庫県神戸市中央区東川崎町３丁目１番 １号 川崎重工業株式会社 神戸工場内 (72)発明者 田尻 忠士 千葉県君津市久保３丁目４番３号 審査官 新海 岳 (56)参考文献 実開 平５−77239（ＪＰ，Ｕ) 実開 平５−77240（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F26B 17/32,25/00 F26B 25/04 - 25/18 C10B 57/10 C10B 5/00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI F26B 25/00 F26B 25/00 J (72) Inventor Takeshi Nagahama 3-1-1 Higashikawasakicho, Chuo-ku, Kobe-shi, Hyogo Kawasaki Heavy Industries Inside the Kobe Factory, Ltd. (72) Inventor Tadashiri Tajiri 3-4-2 Kubo, Kimitsu-shi, Chiba Examiner Gaku Shinkai (56) References JP-U 5-77239 (JP, U) JP-U 5-77240 ( JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) F26B 17 / 32,25 / 00 F26B 25/04-25/18 C10B 57/10 C10B 5/00
Claims (4)
に、粉粒状の被乾燥物を傾斜上端から傾斜下端方向に流
通させる多数のチューブを前記回転円筒体の軸線方向に
配列し、前記回転円筒体の上端面に被乾燥物の供給手段
を設け、この供給手段側の回転円筒体の外周縁部に沿っ
て、こぼれ落ちた被乾燥物を回収し前記供給手段に投入
する掻上げ手段を環状に連続して設けたコール・イン・
チューブドライヤにおいて、 前記掻上げ手段を半径方向内方が開口した断面略Ｕ字状
の箱形構造に形成するとともに、その内周壁の周囲に蒸
気などの加熱媒体を導入するためのジャケットを形成
し、このジャケット内に加熱媒体を導入して前記内周壁
を加熱するようにし、 前記掻上げ手段の内部をその円周方向に沿って一定の間
隔ごとに、前記ジャケットの対向する内周壁間に跨って
架設される仕切部材で仕切った ことを特徴とするコール
・イン・チューブドライヤ。1. A plurality of tubes for allowing a powdery material to flow from an inclined upper end to an inclined lower end are arranged in a rotating cylinder in an inclined posture through which steam flows, in an axial direction of the rotating cylinder, and A supply means for supplying the material to be dried is provided on the upper end surface of the cylindrical body. Along the outer peripheral edge of the rotary cylinder on the side of the supply means, a scraping means for collecting the spilled material to be dried and throwing it into the supply means is annular. Call-in
In the tube dryer, the scraping means is formed in a box-shaped structure having a substantially U-shaped cross section with an inner opening in the radial direction, and a jacket for introducing a heating medium such as steam is formed around an inner peripheral wall thereof. , so as to heat the inner circumferential wall by introducing the heating medium into the jacket, between the constant along the interior of the scraping means in its circumferential direction
For each interval, straddling between the opposing inner peripheral walls of the jacket
A call-in-tube dryer characterized by being partitioned by an installed partition member .
数のジャケット部に分割し、分割した各ジャケット部の
前記回転円筒体の回転方向側に、前記回転円筒体内の蒸
気を配管を介して導入し、各ジャケット部の前記回転円
筒体の反回転方向の傾斜下部側から、配管を介してドレ
ンを前記回転円筒体内へ戻すようにした請求項１記載の
コール・イン・チューブドライヤ。2. The jacket is divided into a plurality of jacket portions at equal intervals in a circumferential direction, and steam in the rotating cylinder is piped to a side of each of the divided jackets in a rotating direction of the rotating cylinder. 2. The call-in-tube dryer according to claim 1, wherein the drain is returned to the rotary cylinder through piping from a lower portion of each jacket in a direction opposite to the rotation of the rotary cylinder via a pipe.
に、粉粒状の被乾燥物を傾斜上端から傾斜下端方向に流
通させる多数のチューブを前記回転円筒体の軸線方向に
配列し、前記回転円筒体の上端面に被乾燥物の供給手段
を設け、この供給手段側の回転円筒体の外周縁部に沿っ
て、こぼれ落ちた被乾燥物を回収し前記供給手段に投入
する掻上げ手段を環状に連続して設けたコール・イン・
チューブドライヤにおいて、 前記掻上げ手段を半径方向内方が開口した断面略Ｕ字状
の箱形構造に形成するとともに、その内周壁の周囲に加
熱媒体を導入するためのジャケットを形成し、このジャ
ケットを円周方向に等間隔に分割して形成した複数のジ
ャケット部と対応する各蒸発部を接続して全体を密封構
造のヒートパイプに構成して内部に加熱媒体を封入し、
前記蒸発部を前記回転円筒体の外周壁に密着させて配置
することにより前記加熱媒体の凝縮ドレンを気化させ、
その気化したガスを介して前記内周壁を加熱するように
したことを特徴とするコール・イン・チューブドライ
ヤ。3. A plurality of tubes for allowing powdery and granular materials to flow from the inclined upper end to the inclined lower end are arranged in the rotating cylinder in the inclined posture through which steam flows, and are arranged in the axial direction of the rotating cylinder. A supply means for supplying the material to be dried is provided on the upper end surface of the cylindrical body. Along the outer peripheral edge of the rotary cylinder on the side of the supply means, a scraping means for collecting the spilled material to be dried and throwing it into the supply means is annular. Call-in
In the tube dryer, the scraping means is formed in a box-shaped structure having a substantially U-shaped cross section with an inner opening in the radial direction, and a jacket for introducing a heating medium around an inner peripheral wall thereof is formed. A plurality of jacket portions formed by dividing the circumferential direction at equal intervals and corresponding respective evaporating portions are connected to form a whole heat pipe having a sealed structure, and a heating medium is sealed therein,
By evaporating the condensed drain of the heating medium by arranging the evaporating portion in close contact with the outer peripheral wall of the rotating cylindrical body,
A call-in-tube dryer characterized in that the inner peripheral wall is heated via the vaporized gas.
沿って一定の間隔ごとに仕切り部材を配して仕切るとと
もに、該仕切部材を前記ジャケットの対向する内周壁間
に跨って架設され半径方向に一定の間隔をあけた複数本
のパイプで構成する請求項１又は３記載のコール・イン
・チューブドライヤ。4. The inside of said scraping means in the circumferential direction thereof
When partitioning by arranging partition members at regular intervals along
In addition, the partition member is disposed between the opposing inner peripheral walls of the jacket.
That are laid across
The call-in-tube dryer according to claim 1 or 3, which is constituted by a pipe .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34425193A JP3333293B2 (en) | 1993-12-17 | 1993-12-17 | Call-in-tube dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34425193A JP3333293B2 (en) | 1993-12-17 | 1993-12-17 | Call-in-tube dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07174465A JPH07174465A (en) | 1995-07-14 |
| JP3333293B2 true JP3333293B2 (en) | 2002-10-15 |
Family
ID=18367804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34425193A Expired - Lifetime JP3333293B2 (en) | 1993-12-17 | 1993-12-17 | Call-in-tube dryer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3333293B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100742880B1 (en) * | 2001-08-09 | 2007-07-25 | 주식회사 포스코 | An apparatus for blocking dispersion of dust in a coal drier |
| KR100765069B1 (en) * | 2001-11-20 | 2007-10-08 | 주식회사 포스코 | Apparatus for sealing of coal moisture dryer |
| KR100825576B1 (en) * | 2002-08-06 | 2008-04-25 | 주식회사 포스코 | An apparatus for removing oil leaked from the bogiflex of a coal dryer |
-
1993
- 1993-12-17 JP JP34425193A patent/JP3333293B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07174465A (en) | 1995-07-14 |
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