JP2007240051A - Air-bleeding structure of water cooling type horizontal rotator - Google Patents
Air-bleeding structure of water cooling type horizontal rotator Download PDFInfo
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- JP2007240051A JP2007240051A JP2006061753A JP2006061753A JP2007240051A JP 2007240051 A JP2007240051 A JP 2007240051A JP 2006061753 A JP2006061753 A JP 2006061753A JP 2006061753 A JP2006061753 A JP 2006061753A JP 2007240051 A JP2007240051 A JP 2007240051A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000001816 cooling Methods 0.000 title description 4
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
Description
本発明は、高温雰囲気に晒されるスクリューコンベア、連続鋳造装置の下スクリューコンベヤ等の、水平回転し、内部が冷却のために水冷される水冷式水平回転体のエアを抜くためのエア抜き構造に関する。 The present invention relates to an air vent structure for removing air from a water-cooled horizontal rotating body that rotates horizontally and is internally cooled by cooling, such as a screw conveyor exposed to a high-temperature atmosphere, a lower screw conveyor of a continuous casting apparatus, and the like. .
廃棄物溶融設備では、燃焼室の底部にダストを排出するために冷却水が流れる水冷式の水平回転するスクリューコンベアが配置され(特許文献1参照)、また、熱回収設備の廃熱ボイラの下部にダストを排出するための水冷式の水平回転するスクリューコンベヤが配置されている(特許文献2参照)。 In the waste melting facility, a water-cooled horizontal rotating screw conveyor in which cooling water flows to discharge dust to the bottom of the combustion chamber is disposed (see Patent Document 1), and the lower part of the waste heat boiler of the heat recovery facility A water-cooled, horizontally rotating screw conveyor for discharging dust is disposed (see Patent Document 2).
図4は水冷式水平回転体の従来例を示す図である。図4(a)に示す例においては、回転体30は両端の給水側軸端部31と排水側軸端部32が軸受33に回転可能に支持され、冷却水は図中の矢印で示すように、給水側軸端部31から回転体30の内部に供給され、排水側軸端部32から排水される。
FIG. 4 is a view showing a conventional example of a water-cooled horizontal rotating body. In the example shown in FIG. 4A, the rotating
図4(a)では、軸端部32から排水されるため、回転体30の通水部内径が排水側軸内径よりも大きい場合、回転体30の排水側軸端部レベル以上の部分がエア溜り34となって非水冷となり、排水側軸端部レベル以上の鉄皮は非水冷となってしまう。回転により、鉄皮は加熱と冷却の繰り返しの熱影響を繰り返し受けるため、好ましくない。
In FIG. 4 (a), since water is drained from the
そこで、回転体の溜まるエアを抜くために、各種のエア抜き構造が提案されている。図4(b)に示す回転体30では、排水側をエア抜き管35が固定できる2重管式スイベルジョイント構造36にし、エア抜き管35の先端を回転体30の内面の上端部に位置させてエアを抜くようにしている。
Therefore, various air venting structures have been proposed in order to remove the air accumulated in the rotating body. In the rotating
また、図4(c)に示す回転体30では、回転体内に中子37を配置し、回転体内の外周部の水流速を上げて冷却水を中子37の廻りを通過させて空気を排水軸端部側に追い出すようにしている。
しかしながら、図3(b)に示すエア抜きは、エア抜き管35はスイベルジョイント36に固定して排水軸端部32を貫通させて片持ち状態で支持しているため、不安定となるという問題がある。
However, the air vent shown in FIG. 3B is unstable because the
また、図3(c)に示すエア抜きは、高水圧、大水量が必要であり、確実性に欠けるという問題がある。 Further, the air vent shown in FIG. 3 (c) requires a high water pressure and a large amount of water, and has a problem of lack of certainty.
そこで、本発明は、水冷式水平回転体のエア溜りを簡単な構造で消失させることができるエア抜き構造を提供するものである。 Therefore, the present invention provides an air vent structure that can eliminate an air reservoir of a water-cooled horizontal rotating body with a simple structure.
本発明は、軸受により両端の軸端部が水平回転可能に軸支された回転体内部に冷却水を給水し排水して冷却する内部水冷式水平回転体のエア抜き構造において、一方の軸端部が給水路に接続され、他方の排水側の軸端部に回転体と共に回転するエア抜きを兼ねた排水管が固定され、回転体内に位置する、排水管の取水口の位置を回転体の軸心から離した回転体の内周面近くに位置させ、排水管の端部がスイベルジョイントを介して排水路に接続されていることを特徴とする。 The present invention relates to an air vent structure for an internal water-cooled horizontal rotating body in which cooling water is supplied to a rotating body whose shaft ends at both ends are pivotally supported by bearings so as to be horizontally rotatable, and then drained and cooled. Is connected to the water supply channel, and a drain pipe that also functions as an air vent that rotates with the rotating body is fixed to the shaft end of the other drainage side, and the position of the intake of the drain pipe located in the rotating body is It is located near the inner peripheral surface of the rotating body separated from the shaft center, and the end of the drainage pipe is connected to the drainage channel via a swivel joint.
また、本発明は、軸受により両端の軸端部が回転可能に軸支された回転体内に冷却水を給水及び排水する内部水冷式水平回転体のエア抜き構造において、回転体内に冷却水を給水する、回転体と共に回転する給水案内管が排水側の軸端部に固定され、給水案内管内に排水管が配置され、排水管の取水口を給水案内管より突出させ、突出した取水口の位置を回転体の軸心から離して回転体の内周面近くに位置させ、スイベルジョイントを介して給水案内管の端部が給水路に接続されるとともに、排水管の端部が排水路に接続されていることを特徴とする。 In addition, the present invention provides an air vent structure for an internal water-cooled horizontal rotating body that supplies and drains cooling water into a rotating body that is rotatably supported at both ends by a bearing. The water supply guide pipe that rotates together with the rotating body is fixed to the shaft end on the drain side, the drain pipe is disposed in the water supply guide pipe, the water intake of the drain pipe protrudes from the water supply guide pipe, and the position of the protruding water intake The end of the water supply guide pipe is connected to the water supply path through the swivel joint, and the end of the drainage pipe is connected to the drainage path. It is characterized by being.
本発明は、排水管の回転により、排水管の取水口が回転動作により水没して排水し、エア溜り部分に入るとエアが抜けるために回転の繰り返し動作によりエア溜りを消失させることができる。その結果、非冷却部分の形成をおさることができる。 According to the present invention, the water intake port of the drain pipe is submerged and drained by the rotation operation by the rotation of the drain pipe, and the air is lost by entering the air reservoir portion. As a result, formation of the non-cooled portion can be suppressed.
また、スクリュー軸の排水側軸端部に排水管を固定するので、図4(b)に示す回転軸を貫通した片持ち支持に比べて、簡単な構造により排水管の安定した支持が可能となる。 In addition, since the drain pipe is fixed to the drain side shaft end of the screw shaft, the drain pipe can be stably supported with a simple structure as compared to the cantilever support penetrating the rotating shaft shown in FIG. Become.
また、一方の軸端部から給水と排水ができる構造とすることも可能で、他方の軸端部は単に軸受で支持すればよいので、水回りの設備を簡素化することができる。 Moreover, it is also possible to make it the structure which can supply and drain water from one axial end part, and since the other axial end part should just be supported with a bearing, the equipment around water can be simplified.
本発明の実施例を図面により説明する。 Embodiments of the present invention will be described with reference to the drawings.
図1は本発明によるエア抜き管を備えた回転体の全体の構造を示す概略図、図2はエア抜き管の支持構造を示す概略断面図で、燃焼室1の底部に灰を排出するために回転体としてスクリュー軸2にスクリュー羽根3を備えたスクリューコンベ4が配置された例を示すものである。
FIG. 1 is a schematic view showing the entire structure of a rotating body provided with an air vent pipe according to the present invention, and FIG. 2 is a schematic cross-sectional view showing a support structure of the air vent pipe for discharging ash to the bottom of the
図1及び図2において、中空のスクリュー軸2は燃焼室1の壁に設けられた軸シール装置5に給水側軸端部6が回転可能に軸支され、スクリューケーシング7の壁に設けられた軸シール装置5に排水側軸端部8が回転可能に軸支される。
1 and 2, the
給水側軸端部6に接続された給水管9は軸受10に回転可能に軸支され、給水管9の端部はスイベルジョイント11により回転可能に給水路12に接続される。また、給水側軸端部6及び排水側軸端部8の内径は炉内側軸内径よりも小さいため、排水側軸端部8にはエア抜きと排水を兼ねた排水管13が固定される。
A water supply pipe 9 connected to the water supply side shaft end 6 is rotatably supported by a
排水管13は軸受14に回転可能に軸支され、排水管13の端部を排水路16に接続する場合には、排水管13の端部がスイベルジョイント15により回転可能に排水路16に接続される。排水管13の取水口17は、スクリュー軸2の端部近くに位置させ、その位置をスクリュー軸2の軸心より離し、スクリュー軸2の内周面近くに位置させる。
The
スクリュー軸2内には給水路12、スイベルジョイント11、給水管9、送水側軸端部6を経て冷却水が給水され、スクリュー軸2内の冷却水は排水管13の取水口17、排水管13、スイベルジョイント15を経て排水路16に排水される。
Cooling water is supplied into the
スクリュー軸2は回転駆動装置18によりチェーン19及びスプロケット20を介して回転する。
The
本実施例では、排水管13の回転により、排水管13と共に回転する排水管13の取水口17から排水とエア抜きをする。
In the present embodiment, the
また、スクリュー軸2の排水側軸端部8に排水管13を固定するので、図4(b)に示す回転軸を貫通した片持ち支持に比べて、簡単な構造により排水管13の安定した支持が可能となる。
In addition, since the
また、排水管13の取水口17をスクリュー軸2の内周面近くに位置させることにより、スクリュー軸2内のエア溜りをなくし、冷却水がスクリュー軸内にほぼ満たされるようになり、エア溜り、即ち非冷却部の形成を抑えることができる。
Further, by positioning the
図3は排水管の支持構造の別実施例を示す概略断面図で、図2と同一部材には同一符号を付してその説明は省略する。本実施例は、スクリュー軸2の一端のみから給水、排水を行う場合の例である。
FIG. 3 is a schematic sectional view showing another embodiment of the drain pipe support structure. The same members as those in FIG. The present embodiment is an example in the case where water supply and drainage are performed only from one end of the
スクリュー軸2の給水側軸端部8に給水案内管21が固定され、給水案内管21はスクリューケーシング7の壁に設けられた軸シール装置5と軸受14に回転可能に支持され、給水案内管21の端部が2重管式スイベルジョイント22の軸受23に回転可能に軸支される。
A water
給水案内管21の中空部には排水管13が配置され、排水管13は、取水口17側が給水案内管21に支持され、他端が2重管式スイベルジョイント22の軸受24に支持される。排水管13は実施例1と同様に取水口17は、その位置をスクリュー軸2の軸心より離し、スクリュー軸2の内面近くに位置させてエア溜まりの形成を抑える。
A
給水路12から2重管式スイベルジョイント22から給水された冷却水はスクリュー軸2の端から給水案内管21を経由してスクリュー軸2内に給水される。スクリュー軸2を冷却した冷却水は給水案内管21とともに回転する排水管13を経由してスイベルジョイント22を経て排水路16に排水される。
Cooling water supplied from the double-pipe
本実施例でも、排水管13の回転により、排水管13の取水口17が回転動作により水没して排水し、エア溜り部分に入るとエアが抜けるために回転の繰り返し動作によりエア溜りを消失させることができるので、非冷却部分の形成をおさることができる。
Also in this embodiment, due to the rotation of the
また、排水管13を給水案内管21とスイベルジョイント22の軸受け24で支持するので、簡単な構造により排水管13の安定した支持が可能となる。
Moreover, since the
また、一方の軸端部は単に軸受で支持すればよいので、水回りの設備を簡素化することができる。 In addition, since one shaft end is simply supported by a bearing, it is possible to simplify equipment around the water.
1:燃焼室 2:スクリュー軸
3:スクリュー羽根 4:スクリューコンベヤ
5:軸受 6:給水側軸端部
7:スクリューケーシング 8:排水側軸端部
9:給水管 10:軸受
11:スイベルジョイント 12:給水路
13:排水管 14:軸受
15:スイベルジョイント 16:排水路
17:取水口 18:回転駆動装置
19:チェーン 20:スプロケット
21:給水案内管 22:2重管式スイベルジョイント
23:軸受 30:回転体
31:給水側軸端部 32:排水側軸端部
33:軸受 34:エア溜り
35:エア抜き管 36:2重管式スイベルジョイント
37:中子
1: Combustion chamber 2: Screw shaft 3: Screw blade 4: Screw conveyor 5: Bearing 6: Water supply side shaft end 7: Screw casing 8: Drainage side shaft end 9: Water supply pipe 10: Bearing 11: Swivel joint 12: Water supply path 13: Drainage pipe 14: Bearing 15: Swivel joint 16: Drainage path 17: Water intake 18: Rotation drive device 19: Chain 20: Sprocket 21: Water supply guide pipe 22: Double pipe type swivel joint 23: Bearing 30: Rotating body 31: Water supply side shaft end 32: Drainage side shaft end 33: Bearing 34: Air reservoir 35: Air vent pipe 36: Double pipe type swivel joint 37: Core
Claims (2)
一方の軸端部が給水路に接続され、他方の排水側の軸端部に回転体と共に回転するエア抜きを兼ねた排水管が固定され、回転体内に位置する、排水管の取水口の位置を回転体の軸心から離れた回転体の内周面近くに位置させ、
排水管の端部がスイベルジョイントを介して排水路に接続されていることを特徴とする水冷式水平回転体のエア抜き構造。 In the air bleed structure of the internal water-cooled horizontal rotator that cools water by supplying and draining cooling water into the rotator that is pivotally supported by the bearing so that the shaft ends of the both ends are horizontally rotatable.
The position of the water intake of the drain pipe, where one shaft end is connected to the water supply channel, and the other drain side shaft end is fixed to the drain pipe that also functions as an air vent that rotates with the rotating body, and is located inside the rotating body. Is located near the inner peripheral surface of the rotating body away from the axis of the rotating body,
An air vent structure for a water-cooled horizontal rotating body, characterized in that an end of the drain pipe is connected to a drain channel through a swivel joint.
回転体内に冷却水を給水する、回転体と共に回転する給水案内管が排水側の軸端部に固定され、給水案内管内に排水管が配置され、排水管の取水口を給水案内管より突出させ、突出した取水口の位置を回転体の軸心から離れた回転体の内周面近くに位置させ、
スイベルジョイントを介して給水案内管の端部が給水路に接続されるとともに、排水管の端部が排水路に接続されていることを特徴とする水冷式水平回転体のエア抜き構造。 In the air bleed structure of the internal water-cooled horizontal rotator that feeds and drains cooling water into the rotator that is rotatably supported by the shaft ends at both ends by the bearings,
A water supply guide pipe that feeds cooling water into the rotating body and rotates together with the rotating body is fixed to the shaft end on the drainage side, a drainage pipe is arranged in the water supply guide pipe, and the water intake of the drainage pipe protrudes from the water supply guide pipe. , The position of the protruding water intake is located near the inner peripheral surface of the rotating body away from the axis of the rotating body,
An air vent structure for a water-cooled horizontal rotating body, wherein an end of a water supply guide pipe is connected to a water supply path via a swivel joint, and an end of the drainage pipe is connected to the drainage path.
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JP2008279493A (en) * | 2007-05-14 | 2008-11-20 | Kobe Steel Ltd | Roll device |
KR101232866B1 (en) | 2012-07-20 | 2013-02-13 | (주)유성 | Equipment for clinker removing of combustion chamber and combustion chamber equipment having the same |
JP2015136862A (en) * | 2014-01-22 | 2015-07-30 | 株式会社大林組 | cement cooling system and cement cooling method |
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KR101232866B1 (en) | 2012-07-20 | 2013-02-13 | (주)유성 | Equipment for clinker removing of combustion chamber and combustion chamber equipment having the same |
JP2015136862A (en) * | 2014-01-22 | 2015-07-30 | 株式会社大林組 | cement cooling system and cement cooling method |
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