JPH08151113A - Screw type cooler - Google Patents
Screw type coolerInfo
- Publication number
- JPH08151113A JPH08151113A JP29278594A JP29278594A JPH08151113A JP H08151113 A JPH08151113 A JP H08151113A JP 29278594 A JP29278594 A JP 29278594A JP 29278594 A JP29278594 A JP 29278594A JP H08151113 A JPH08151113 A JP H08151113A
- Authority
- JP
- Japan
- Prior art keywords
- water
- cooling
- cooling water
- jacket
- inlet pipe
- 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.)
- Granted
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Screw Conveyors (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
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 high-temperature powder particles such as high-temperature hot ash generated in a furnace while cooling them.
【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 for moving hot ash generated in a furnace while cooling and moving 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 that rotates coaxially with the main body 1 is arranged in the axial direction inside the cylindrical main body 1 of the cooler.
A cylindrical ash inlet pipe 4 is provided at one end of the main body 1, and a cylindrical ash outlet pipe 4a is provided at the other end.
【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。On the outer periphery of the main body 1, a water cooling jacket 3 is attached which is divided into a plurality of sections or is divided into a plurality of sections in the axial direction of the main body 1. The water cooling jacket 3 includes 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 the other end portion of the main body 1 on the side where the hot ash outlet pipe 4a is provided. Is equipped with a cooling water outlet 11. As shown by the arrow, 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 divided into a plurality of parts, and the other main body 1 is cooled. It 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 this 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 from the ash inlet pipe 4 is slowly sent to the outlet side by the screw 2 at a low speed, and the body 1 and the hot ash are brought into contact with each other 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。In the portion of the ash inlet pipe 4 which is exposed to the highest temperature, the heat resistance of the member used is increased or a heat insulating material 12 is attached to the inner surface of the pipe as shown in FIG. 4, so that the pipe is exposed to high temperature. 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。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-mentioned conventional screw cooler has the following problems. (1) It is difficult to cool the portion of the ash inlet pipe exposed to the hottest hot ash. (2) It is difficult to increase the flow velocity of the cooling water in the water cooling jacket on the main body side, the flow of the cooling water is biased, and uneven cooling occurs especially at the high temperature portion of the hot ash inlet, which causes the influence of the difference in thermal expansion of the main body. (3) A large amount of cooling water is required. (4) When cooling water is supplied to the ash inlet pipe portion, the cooling water stagnates in a positional manner and an air pool is generated, which causes a safety problem.
【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。The present invention is intended to provide a screw type cooler capable of solving 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。DISCLOSURE OF THE INVENTION The present invention provides a screw type cooling device for cooling high temperature powder particles while moving them at low speed by a screw provided inside the main body.
The outer circumference of the main body is provided by covering the outer circumference of the inlet pipe of the granular material provided at the end with a first water cooling jacket to which cooling water is supplied, and providing a spiral cooling water passage inside the first water cooling jacket. A second water cooling jacket, and a spiral cooling water passage communicating with the spiral cooling water passage inside the first water cooling jacket is provided inside the second water cooling jacket. It is characterized in that the cooling water outlet of the water cooling jacket is provided on the opposite side of the inlet tube for the powder and granules.
【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。In the present invention, the inlet pipe of the high temperature powder or granule is covered with the first water cooling jacket provided with the spiral cooling water passage to make the flow of the cooling water swirl, whereby the most severe powder or granules can be obtained. The cooling of the inlet pipe of the body is ensured and the stagnation of the cooling water in the first water cooling jacket is prevented to improve the 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 turbulent flow of the cooling water into the turbulent flow causes the chilled water to flow in a turbulent swirling flow around the high-temperature part of the main body, improving the cooling effect and improving the cooling effect of the high-temperature particles. Improves the reliability of the screw cooler.
【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, by making the flow of the cooling water flowing from the first water cooling jacket to the second water cooling jacket a first-rate type, 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。EXAMPLE An example of the present invention relating to a screw type cooler for high temperature hot ash generated in a furnace will be described with reference to FIGS. The main body of the screw cooler, the screw, the ash inlet pipe, the ash outlet pipe, and the cooling system of the screw of the present embodiment are the same as those of the conventional screw cooler shown in FIG. Corresponding parts are designated by the same reference numerals as in FIG. 4 and their description 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, the ash inlet pipe 4 provided at one end of the main body 1 is covered with the first water cooling jacket 5 to which the cooling water is supplied from the upper cooling water inlet 5a over substantially the entire length of the outer circumference thereof. There is. Further, the outer periphery of the main body 1 is covered with a second water cooling jacket 3 over the entire length in the axial direction of the main body 1, and the portion of the 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 extends from an upper portion on the upstream side to a lower portion on the downstream side. The passage area is gradually expanded, and as shown in FIG. 2, the cooling water flows into the first water cooling jacket 5 from the cooling water inlet 5a in a substantially tangential manner. In addition, a spiral cooling water passage is formed in the second water cooling jacket 3 by a spiral partition plate 7. The cooling water passage of the second water cooling jacket 3 is the first cooling water passage. 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 the present embodiment, the high-temperature hot ash that has entered the main body 1 through the ash inlet pipe 4 is slowly sent to the outlet side by the screw 2 at a low speed 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 from the cooling water inlet 5a to the ash inlet pipe 4
It enters the upper part of the first water-cooling jacket 5 covered with, and flows downward as a swirling flow through the spiral cooling water passage around the ash inlet pipe 4. In this way, since the cooling water flows in a swirling flow around the ash inlet pipe 4,
The most thermally severe ash inlet tube 4 is reliably cooled.
Further, the cooling water flows from the top to the bottom in the spiral cooling water passage in the first water cooling jacket 5, 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 a turbulent flow, and becomes a turbulent swirling flow around the main body 1. And then flows out and is discharged from the cooling water outlet 3a at the other end of the main body 1. In this way, the cooling water flows as a turbulent swirl flow around the main body 1, so that the thermal 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。Further, by making the flow of the cooling water from the first jacket 5 to the second jacket 3 a single flow 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。Since the present invention has the constitutions of the claims, the following effects can be obtained. (1) It becomes possible to cool the inlet pipe of the hot and granular powder, which is the most thermally severe, with water. (2) By making the cooling water swirl, the cooling effect can be improved and the stagnation of the cooling water can be prevented to improve the safety. (3) The cooling water is made turbulent in the portion where the cooling water flows into the second water cooling jacket covering the outer periphery of the main body, and the cooling effect of the high temperature portion of the main body can be enhanced. (4) The consumption of the cooling water can be reduced by making the flow of the cooling water a first-class type.
【図１】本発明の一実施例の縦断面図である。FIG. 1 is a vertical sectional view of an 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 as seen from the direction of arrows AA in FIG.
【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 portion 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 cross-sectional view of a conventional screw type 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 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 Insulation Material
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 powder or granular material while moving it at low speed by means of a screw provided inside the main body, wherein cooling water is provided on the outer periphery of an inlet pipe of the powder or granular material provided at one end of the main body. Is provided with a first water-cooling jacket, a spiral cooling water passage is provided inside the first water-cooling jacket, and a second water-cooling jacket is provided on the outer periphery of the main body for the second water-cooling jacket. A spiral cooling water passage communicating with the spiral cooling water passage inside the first water cooling jacket is provided inside the jacket, and the cooling water outlet of the second water cooling jacket is opposite to the inlet pipe of the granular material. A screw type cooling device that is 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 true JPH08151113A (en) | 1996-06-11 |
| JP3105751B2 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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1994
- 1994-11-28 JP JP06292785A patent/JP3105751B2/en not_active Expired - Fee Related
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| KR100416073B1 (en) * | 2000-08-03 | 2004-01-31 | 한국동서발전(주) | Apparatus for cooling bed media for use in a fluidized bed combustor |
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| JP2010139125A (en) * | 2008-12-10 | 2010-06-24 | Mitsubishi Heavy Ind Ltd | Rotary cooling transport device for high-temperature granular fluid |
| CN102338392A (en) * | 2010-07-21 | 2012-02-01 | 安徽海螺川崎工程有限公司 | Slag discharging device |
| CN102679332A (en) * | 2012-02-10 | 2012-09-19 | 江苏靖隆合金钢机械制造有限公司 | Composite double-flow slag cooler |
| CN104197757A (en) * | 2014-09-11 | 2014-12-10 | 中建材（合肥）粉体科技装备有限公司 | Multi-tube combined type spiral cooler |
| CN105540174A (en) * | 2016-01-26 | 2016-05-04 | 山东省农业机械科学研究院 | Cantilever type incinerator feed screw conveyor |
| 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 |
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| CN110844637A (en) * | 2019-12-19 | 2020-02-28 | 杰瑞环保科技有限公司 | Thermal phase separation solid residue discharging, cooling and dedusting device and method |
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