JP3105751B2 - Screw cooler - Google Patents
Screw coolerInfo
- Publication number
- JP3105751B2 JP3105751B2 JP06292785A JP29278594A JP3105751B2 JP 3105751 B2 JP3105751 B2 JP 3105751B2 JP 06292785 A JP06292785 A JP 06292785A JP 29278594 A JP29278594 A JP 29278594A JP 3105751 B2 JP3105751 B2 JP 3105751B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- water
- cooling water
- main body
- jacket
- 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 - Fee Related
Links
Landscapes
- Gasification And Melting Of Waste (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Screw Conveyors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、炉内で発生した高温の
熱灰等の高温の粉粒体を冷却しながら移動させるスクリ
ュー式冷却器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw type cooler for moving a high temperature powder or granular material such as a hot ash generated in a furnace while cooling the same.
【０００２】[0002]
【従来の技術】炉内で発生した高温の熱灰を冷却しなが
ら移動させて次のセクションへ送る従来のスクリュー式
冷却器を、図４によって説明する。2. Description of the Related Art A conventional screw-type cooler which moves high-temperature hot ash generated in a furnace while cooling it and sends it to the next section will be described with reference to FIG.
【０００３】冷却器の円筒形の本体１内の軸方向には本
体１と同軸に回転するスクリュー２が配置されている。
本体１の１端には円筒状の灰入口管４が設けられ、その
他端には円筒状の灰出口管４ａが設けられている。A screw 2 which is coaxial with the main body 1 is arranged in the axial direction inside the cylindrical main body 1 of the cooler.
At one end of the main body 1, a cylindrical ash inlet pipe 4 is provided, and at the other end, a cylindrical ash outlet pipe 4a is provided.
【０００４】本体１の外周に本体１の軸方向に複数に分
割又は複数に仕切られた水冷用ジャケット３が取り付け
られている。水冷用ジャケット３は、熱灰入口管４が設
けられた側の本体１の１端の部分に冷却水入口１０を備
え、熱灰出口管４ａが設けられた側の本体１の他端の部
分に冷却水出口１１を備えている。冷却水は、矢印に示
すように、前記冷却水入口１０から本体１の１端の水冷
用ジャケット３内に入り、複数に分割又は仕切られた水
冷用ジャケット３内を順次流れて本体１の他端の水冷用
ジャケット３から冷却水出口１１へ排出され、本体１が
この冷却水によって冷却される。A water cooling jacket 3 divided or divided into a plurality in the axial direction of the main body 1 is attached to the outer periphery of the main body 1. The water cooling jacket 3 is provided with a cooling water inlet 10 at one end of the main body 1 on the side where the hot ash inlet pipe 4 is provided, and at the other end of the main body 1 on the side where the hot ash outlet pipe 4a is provided. A cooling water outlet 11 is provided. As shown by the arrows, the cooling water enters the water cooling jacket 3 at one end of the main body 1 from the cooling water inlet 10 and sequentially flows through the water cooling jacket 3 divided or partitioned into a plurality of parts. The water is discharged from the water cooling jacket 3 at the end to the cooling water outlet 11, and the main body 1 is cooled by the cooling water.
【０００５】灰入口管４より入った高温の熱灰は、スク
リュー２によってゆっくり出口側へ低速で送られ、本体
１と熱灰とを接触させて熱灰の熱が吸収除去された上灰
出口管４ａから排出される。The high-temperature hot ash that has entered through the ash inlet pipe 4 is slowly sent to the outlet side by the screw 2 at a low speed and brought into contact with the main body 1 and the hot ash to absorb and remove the heat of the hot ash. It is discharged from the pipe 4a.
【０００６】また、最も高温に晒される灰入口管４の部
分は、使用部材の耐熱性を上げるか、又は図４に示すよ
うに管内面に断熱材１２を貼付け、管が高温に晒される
のを防いでいる。Further, the portion of the ash inlet pipe 4 which is most exposed to the high temperature increases the heat resistance of the used member, or a heat insulating material 12 is attached to the inner surface of the pipe as shown in FIG. Is preventing.
【０００７】なお、冷却水は、矢印に示すように、スク
リュー２内を熱灰の移動方向へ流れてスクリュー２を冷
却している。[0007] As shown by the arrow, the cooling water flows in the screw 2 in the moving direction of the hot ash to cool the screw 2.
【０００８】[0008]
【発明が解決しようとする課題】前記の従来のスクリュ
ー冷却器には、次の問題点があった。 （１）最も高温の熱灰に晒される灰入口管の部分の冷却
ができにくい。 （２）本体側の水冷用ジャケット内の冷却水流速があげ
にくく、冷却水の流れに片寄が生じ、特に熱灰入口の高
温部において冷却のむらができ、本体の熱伸び差による
影響が生じる。 （３）冷却水の水量を多く必要とする。 （４）冷却水を灰入口管の部分に供給すると、配置的に
冷却水の停滞が起って、空気溜りが発生し安全性に問題
が生じる。The above conventional screw cooler has the following problems. (1) It is difficult to cool the portion of the ash inlet pipe that is exposed to the hottest hot ash. (2) The flow rate of the cooling water in the water cooling jacket on the main body side is difficult to increase, and the flow of the cooling water is uneven, particularly in the high temperature part at the inlet of the hot ash, whereby the cooling is uneven, and the difference in thermal expansion of the main body occurs. (3) A large amount of cooling water is required. (4) When the cooling water is supplied to the ash inlet pipe portion, the cooling water stagnates in place, causing air pockets to occur, causing a problem in safety.
【０００９】本発明は、以上の問題点を解決することが
できるスクリュー式冷却器を提供しようとするものであ
る。An object of the present invention is to provide a screw cooler which can solve the above problems.
【００１０】[0010]
【課題を解決するための手段】本発明は、高温の粉粒体
を本体内部に設けたスクリューにより低速で移動させな
がら冷却するスクリュー式冷却装置において、本体の１
端に設けられた粉粒体の入口管の外周に冷却水が供給さ
れる第１の水冷用ジャケットを被せて同第１の水冷用ジ
ャケット内部に螺旋状の冷却水通路を設け、本体の外周
に第２の水冷用ジャケットを被せて同第２の水冷用ジャ
ケット内部に前記第１の水冷用ジャケット内部の螺旋状
の冷却水通路に連通する螺旋状の冷却水通路を設け、前
記第２の水冷用ジャケットの冷却水出口を粉粒体の入口
管の反対側に設けたことを特徴とする。SUMMARY OF THE INVENTION The present invention relates to a screw type cooling device for cooling a high temperature powdery material while moving it at a low speed by a screw provided inside the main body.
A first water-cooling jacket to which cooling water is supplied is placed over the outer periphery of the inlet pipe of the granular material provided at the end, and a spiral cooling water passage is provided inside the first water-cooling jacket. A helical cooling water passage communicating with the helical cooling water passage inside the first water cooling jacket is provided inside the second water cooling jacket by covering the second water cooling jacket with the second water cooling jacket. The cooling water outlet of the water-cooling jacket is provided on the opposite side of the inlet pipe of the granular material.
【００１１】[0011]
【作用】本発明では、高温の粉粒体の入口管に螺旋状の
冷却水通路を設けた第１の水冷用ジャケットを被せ冷却
水の流れを旋回流れとすることによって、最も苛酷な粉
粒体の入口管の冷却を確実にすると共に同第１の水冷用
ジャケット内の冷却水の停滞を防止し安全性を向上させ
る。また、前記の第１の水冷却用ジャケットの螺旋状の
冷却水通路に本体外周に被せた第２の水冷用ジャケット
の螺旋状の冷却水通路が連通しており、第２の水冷用ジ
ャケットへの冷却水の流れ込みが乱流となり、冷却水は
本体の高温の部分のまわりを乱流の旋回流れとなって流
れ、冷却効果を向上させることができ、高温の粉粒体の
冷却効果をあげてスクリュー式冷却器の信頼性が向上す
る。According to the present invention, the most severe powder and granular material is formed by covering the inlet pipe of the high-temperature powder and granular material with a first water cooling jacket provided with a spiral cooling water passage and making the flow of cooling water a swirling flow. The cooling of the inlet pipe of the body is ensured, and the stagnation of cooling water in the first water cooling jacket is prevented to improve safety. Further, the spiral cooling water passage of the second water cooling jacket covering the outer periphery of the main body communicates with the spiral cooling water passage of the first water cooling jacket, and is connected to the second water cooling jacket. The cooling water flow becomes turbulent, and the cooling water flows around the hot part of the main body as a turbulent swirling flow, which can improve the cooling effect and increase the cooling effect of the high temperature powder Thus, the reliability of the screw cooler is improved.
【００１２】また、更に前記のように第１の水冷用ジャ
ケットより第２の水冷用ジャケットへ流れる冷却水の流
れを一流型にすることによって、冷却水の消費量が減少
する。Further, as described above, the flow of the cooling water flowing from the first water cooling jacket to the second water cooling jacket is of a first-class type, so that the consumption of the cooling water is reduced.
【００１３】[0013]
【実施例】炉内で発生した高温の熱灰のスクリュー式冷
却器に係る本発明の一実施例を、図１ないし図３によっ
て説明する。本実施例のスクリュー式冷却器の本体、ス
クリュー、灰入口管、灰出口管及びスクリューの冷却系
統は、図４に示す従来のスクリュー式冷却器と異なる点
はないので、図１ないし図３において対応する部分には
図４におけると同一の符号を付してその説明を省略す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention relating to a screw type cooler for hot ash generated in a furnace will be described with reference to FIGS. The cooling system of the screw cooler of this embodiment, the screw, the ash inlet pipe, the ash outlet pipe and the screw cooling system is not different from the conventional screw cooler shown in FIG. Corresponding parts are denoted by the same reference numerals as in FIG. 4 and description thereof is omitted.
【００１４】本実施例では、本体１の１端に設けられた
灰入口管４の外周のほぼ全長にわたって上部の冷却水入
口５ａから冷却水が供給される第１の水冷用ジャケット
５を被せている。また、本体１の外周には本体１の軸方
向の全長にわたって第２の水冷用ジャケット３が被せら
れ、灰出口管４ａが設けられた本体１の他端の同水冷用
ジャケット３の部分に冷却水出口３ａが設けられてい
る。In the present embodiment, a first water cooling jacket 5 to which cooling water is supplied from an upper cooling water inlet 5a is covered over substantially the entire length of the outer periphery of an ash inlet pipe 4 provided at one end of the main body 1. I have. Further, the outer periphery of the main body 1 is covered with a second water-cooling jacket 3 over the entire length of the main body 1 in the axial direction, and the second water-cooling jacket 3 at the other end of the main body 1 provided with the ash outlet pipe 4a is cooled. A water outlet 3a is provided.
【００１５】前記第１の水冷用ジャケット５内には螺旋
状のガイド板６によって螺旋状の冷却水通路が形成され
ており、同冷却水通路は上流側の上部から下流側の下部
へ行くに従って徐々に通路面積を広げるように構成され
ており、また、図２に示すように、冷却水は冷却水入口
５ａよりほぼ接線状に第１の水冷ジャケット５に流入す
るようになっている。また、前記第２の水冷用ジャケッ
ト３内には螺旋状の仕切板７によって螺旋状の冷却水通
路が形成されており、この第２の水冷用ジャケット３の
冷却水通路は、前記第１の水冷用ジャケット５の下流側
に連通している。A spiral cooling water passage is formed in the first water cooling jacket 5 by a spiral guide plate 6, and the cooling water passage moves from the upper portion on the upstream side to the lower portion on the downstream side. As shown in FIG. 2, the cooling water flows into the first water cooling jacket 5 almost tangentially from the cooling water inlet 5a. Further, a spiral cooling water passage is formed in the second water cooling jacket 3 by a spiral partition plate 7, and the cooling water passage of the second water cooling jacket 3 is formed by the first water cooling jacket. It communicates with the downstream side of the water cooling jacket 5.
【００１６】本実施例では、灰入口管４より本体１内に
入った高温の熱灰は、スクリュー２によってゆっくり出
口側へ低速で送られ灰出口管４ａより排出される。In this embodiment, the high-temperature hot ash that has entered the main body 1 from the ash inlet pipe 4 is slowly sent to the outlet side at a low speed by the screw 2 and discharged from the ash outlet pipe 4a.
【００１７】冷却水は、冷却水入口５ａより灰入口管４
に被せられた第１の水冷用ジャケット５内の上部に入
り、灰入口管４のまわりの螺旋状の冷却水通路を通って
下方へ旋回流れとなって流れる。このように、冷却水が
灰入口管４のまわりに旋回流れとなって流れるために、
最も熱的に苛酷な灰入口管４の冷却が確実に行われる。
また、冷却水は、第１の水冷用ジャケット５内の螺旋状
の冷却水通路を上から下に流れ、かつ、同冷却水通路は
上流側から下流側に徐々に通路面積が増加しているため
に、冷却水の停滞が防止され、安全性が向上し、かつ、
灰入口管４が効果的に冷却される。The cooling water is supplied to the ash inlet pipe 4 through the cooling water inlet 5a.
Into the upper part of the first water-cooling jacket 5 covered with the ash inlet pipe 4, and flows downward through a spiral cooling water passage around the ash inlet pipe 4. Thus, since the cooling water flows in a swirling flow around the ash inlet pipe 4,
The most thermally severe cooling of the ash inlet tube 4 is ensured.
The cooling water flows through the spiral cooling water passage in the first water cooling jacket 5 from the top to the bottom, and the passage area of the cooling water passage gradually increases from the upstream side to the downstream side. Therefore, stagnation of cooling water is prevented, safety is improved, and
The ash inlet tube 4 is effectively cooled.
【００１８】第１の水冷用ジャケット１内を流れた冷却
水は、次いで第２の水冷用ジャケット３の螺旋状の通路
に乱流となって入り、本体１のまわりを乱流の旋回流れ
となって流れて本体１の他端の冷却水出口３ａより排出
される。このように、冷却水が本体１のまわりを乱流の
旋回流れとなって流れるために、本体１従ってスクリュ
ー２によって移動する熱灰を確実に冷却することができ
る。The cooling water flowing in the first water cooling jacket 1 then enters the spiral passage of the second water cooling jacket 3 as turbulent flow, and the turbulent swirling flow around the main body 1. And flows out from the cooling water outlet 3a at the other end of the main body 1. As described above, since the cooling water flows around the main body 1 as a turbulent swirling flow, the hot ash moved by the main body 1 and thus the screw 2 can be reliably cooled.
【００１９】また、第１のジャケット５から第２のジャ
ケット３へと冷却水の流れを一流型とすることによっ
て、冷却水の消費量を低く抑えることができる。In addition, since the flow of the cooling water from the first jacket 5 to the second jacket 3 is of a first-class type, the consumption of the cooling water can be suppressed low.
【００２０】[0020]
【発明の効果】本発明は、特許請求の範囲の構成を具備
しているので、次の効果を挙げることができる。 （１）最も熱的に苛酷な高温の粉粒体の入口管の水冷却
が可能となる。 （２）冷却水を旋回流れとすることによって冷却効果を
上げると共に、冷却水の停滞を防ぎ安全性を向上するこ
とができる。 （３）冷却水が本体の外周に被せた第２の水冷用ジャケ
ットに流入する部分において冷却水を乱流とし、本体の
高温の部分の冷却効果を上げることができる。 （４）冷却水の流れを一流型とすることによって冷却水
の消費量を縮少させることができる。The present invention has the following features, so that the following effects can be obtained. (1) Water cooling of the inlet pipe of the most thermally severe high-temperature granular material is possible. (2) The cooling effect can be enhanced by making the cooling water a swirling flow, and stagnation of the cooling water can be prevented to improve safety. (3) The cooling water is made turbulent at the portion where the cooling water flows into the second water cooling jacket covering the outer periphery of the main body, so that the cooling effect of the high temperature portion of the main body can be improved. (4) The cooling water consumption can be reduced by using a first-class flow of the cooling water.
【図１】本発明の一実施例の縦断面図である。FIG. 1 is a longitudinal sectional view of one embodiment of the present invention.
【図２】図１のＡ−Ａ矢視図面図である。FIG. 2 is a drawing viewed from an arrow AA in FIG. 1;
【図３】前記実施例の第１の水冷用ジャケットの冷却入
口の部分の説明図である。FIG. 3 is an explanatory view of a cooling inlet part of the first water cooling jacket of the embodiment.
【図４】従来のスクリュー式冷却器の断面図である。FIG. 4 is a sectional view of a conventional screw cooler.
１ 本体 ２ スクリュー ３ 第２の水冷用ジャケット ３ａ 冷却水出口 ４ 灰入口管 ４ａ 灰出口管 ５ 第１の水冷用ジャケット ５ａ 冷却水入口 ６ ガイド板 ７ 仕切板 １０ 冷却水入口 １１ 冷却水出口 １２ 断熱材 DESCRIPTION OF SYMBOLS 1 Main body 2 Screw 3 Second water cooling jacket 3a Cooling water outlet 4 Ash inlet pipe 4a Ash outlet pipe 5 First water cooling jacket 5a Cooling water inlet 6 Guide plate 7 Partition plate 10 Cooling water inlet 11 Cooling water outlet 12 Thermal insulation Lumber
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B65G 33/00 - 33/38 F23J 1/00 B01F 7/00 - 7/32 ────────────────────────────────────────────────── ─── Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B65G 33/00-33/38 F23J 1/00 B01F 7/00-7/32
Claims (1)
ューにより低速で移動させながら冷却するスクリュー式
冷却装置において、本体の１端に設けられた粉粒体の入
口管の外周に冷却水が供給される第１の水冷用ジャケッ
トを被せて同第１の水冷用ジャケット内部に螺旋状の冷
却水通路を設け、本体の外周に第２の水冷用ジャケット
を被せて同第２の水冷用ジャケット内部に前記第１の水
冷用ジャケット内部の螺旋状の冷却水通路に連通する螺
旋状の冷却水通路を設け、前記第２の水冷用ジャケット
の冷却水出口を粉粒体の入口管の反対側に設けたことを
特徴とするスクリュー式冷却装置。1. A screw-type cooling device for cooling a high-temperature granular material while moving it at a low speed by a screw provided inside a main body, wherein cooling water is provided on an outer periphery of an inlet pipe of the granular material provided at one end of the main body. Is provided, a spiral cooling water passage is provided inside the first water cooling jacket, and a second water cooling jacket is provided around the outer periphery of the main body. A helical cooling water passage communicating with a helical cooling water passage inside the first water cooling jacket is provided inside the jacket, and a cooling water outlet of the second water cooling jacket is provided opposite to an inlet pipe of the granular material. A screw-type cooling device provided on the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06292785A JP3105751B2 (en) | 1994-11-28 | 1994-11-28 | Screw cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06292785A JP3105751B2 (en) | 1994-11-28 | 1994-11-28 | Screw cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08151113A JPH08151113A (en) | 1996-06-11 |
| JP3105751B2 true JP3105751B2 (en) | 2000-11-06 |
Family
ID=17786312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06292785A Expired - Fee Related JP3105751B2 (en) | 1994-11-28 | 1994-11-28 | Screw cooler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3105751B2 (en) |
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| JP2020148437A (en) * | 2019-03-15 | 2020-09-17 | 荏原環境プラント株式会社 | Incineration ash discharge device and incineration ash discharge method |
| CN110329733A (en) * | 2019-07-25 | 2019-10-15 | 北京高能时代环境技术股份有限公司 | The cooling dust suppression automation equipment of thermal desorption discharging |
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-
1994
- 1994-11-28 JP JP06292785A patent/JP3105751B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101598453B1 (en) | 2014-04-03 | 2016-03-02 | 주식회사 이지하임 | Wall penetration duct connector |
| WO2021120363A1 (en) * | 2019-12-19 | 2021-06-24 | 杰瑞环保科技有限公司 | Thermal phase separation solid residue discharging, cooling and dust removing device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08151113A (en) | 1996-06-11 |
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