JPH0712325A - Water seal type furnace bottom ash conveyer - Google Patents
Water seal type furnace bottom ash conveyerInfo
- Publication number
- JPH0712325A JPH0712325A JP15221193A JP15221193A JPH0712325A JP H0712325 A JPH0712325 A JP H0712325A JP 15221193 A JP15221193 A JP 15221193A JP 15221193 A JP15221193 A JP 15221193A JP H0712325 A JPH0712325 A JP H0712325A
- Authority
- JP
- Japan
- Prior art keywords
- water
- tank
- valve
- supply line
- conveyor
- 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
- Gasification And Melting Of Waste (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は水封式炉底灰コンベア装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-sealed furnace bottom ash conveyor device.
【０００２】[0002]
【従来の技術】従来の水封式炉底灰コンベア装置の例を
図２に示してある。図２において、１は水封式炉底灰コ
ンベア（以後は水封コンベアと称する）のケーシング、
２はスクレーパ付チェーン、３は水封コンベアの水槽、
４は水槽３内の水位レベル、５はスクレーパ付チェーン
２を案内する歯車である。６は駆動歯車、１０はモータ
であり駆動歯車６を図示されない駆動系にて回転させ
る。これによりスクレーパ付チェーン２が図の矢印方向
に炉底灰を掻き上げ、ボトムアッシュサイロ３０に落下
投入させる。７は水封コンベア３内の水である。2. Description of the Related Art An example of a conventional water-sealed furnace bottom ash conveyor device is shown in FIG. In FIG. 2, reference numeral 1 denotes a casing of a water-sealed bottom ash conveyor (hereinafter referred to as a water-sealed conveyor),
2 is a chain with scraper, 3 is a water tank of a water seal conveyor,
Reference numeral 4 is a water level in the water tank 3, and 5 is a gear for guiding the chain 2 with a scraper. 6 is a drive gear, 10 is a motor, and the drive gear 6 is rotated by a drive system (not shown). As a result, the chain 2 with scraper scrapes up the bottom ash in the direction of the arrow in the figure and drops it into the bottom ash silo 30. 7 is water in the water-sealed conveyor 3.
【０００３】ボイラ炉内５０で発生した灰は炉底ホッパ
ー６０と水位レベル４で区切られた水面に落下する。１
１は水封コンベアケーシング下部、１２は基礎、２１は
補給水である。この補給水２１が水封コンベアの水槽３
内の水位レベル４を保持することによりボイラ炉内５０
の内圧が変動しても炉底ホッパー６０の下端が水封され
ているため水封コンベア近辺に高温ガスを吹き出すこと
がない。また、炉内５０に大気を吸い込むこともない状
態で炉底灰を回収できるものである。The ash generated in the boiler furnace 50 falls on the bottom surface of the furnace bottom hopper 60 and the water surface divided by the water level 4. 1
Reference numeral 1 is a lower portion of the water-sealed conveyor casing, 12 is a foundation, and 21 is makeup water. This make-up water 21 is the water tank 3 of the water seal conveyor.
By maintaining the water level 4 in the boiler
Even if the internal pressure fluctuates, since the lower end of the furnace bottom hopper 60 is sealed with water, high-temperature gas is not blown out to the vicinity of the water seal conveyor. Further, the bottom ash can be collected without inhaling the atmosphere into the furnace 50.
【０００４】２２はＯＮ・ＯＦＦ弁であり２６のレベル
スイッチによりコントロールされる。２３はＯＮ・ＯＦ
Ｆ弁２２が故障した場合にバイパス補給するためのバイ
パス補給弁である。２４は補給水ラインである。３０は
本発明とは直接関係するところではないが、水封コンベ
アで回収されたボトムアッシュ（炉底灰）を貯めるため
のボトムアッシュサイロである。ボトムアッシュは図示
のトラックにより搬出されるシステムである。An ON / OFF valve 22 is controlled by a level switch 26. 23 is ON / OF
It is a bypass replenishment valve for bypass replenishment when the F valve 22 fails. 24 is a makeup water line. Although not directly related to the present invention, 30 is a bottom ash silo for storing the bottom ash (furnace bottom ash) collected by the water seal conveyor. The bottom ash is a system that is carried out by the truck shown.
【０００５】１００はドレン弁であり、水封コンベアの
水槽３から任意に沈澱槽１０３に水抜きを行なう。１０
１はオーバーフローボックスであるが、常時オーバーフ
ローを行なうため大きなボックスが必要であった。ま
た、オーバーフロー管１０２はドレン弁１００とも継が
っているため水封コンベア内の灰分による詰まりを懸念
する必要があった。沈澱槽１０３へオーバーフローした
循環水は沈澱物１１０を発生させた後にオーバーフロー
堰１０５を超えることにより灰分を沈澱槽１０３内に取
除くようにしてある。A drain valve 100 drains water from the water tank 3 of the water-sealed conveyor to the precipitation tank 103. 10
Reference numeral 1 is an overflow box, but a large box was required to constantly overflow. Further, since the overflow pipe 102 is also connected to the drain valve 100, it is necessary to worry about clogging due to ash in the water seal conveyor. The circulating water overflowing to the settling tank 103 is designed to remove the ash in the settling tank 103 by passing over the overflow weir 105 after generating the precipitate 110.
【０００６】循環水槽１０４からポンプフィルター１１
５を経由し、スラリーポンプ１２０と逆止弁１２１を通
り、循環水は配管１３０を通り水封コンベア水槽３へと
閉ループにて供給される。このように従来の装置で循環
水システムを設けているのは、炉底ホッパ６０に臨んで
いる水封コンベアの水槽３内の水７の水面からの加熱
（放射熱、ホッパー伝熱）により水温が上昇する（１０
０℃近く）と考えられ、そのために循環水システムを設
置しての冷却、及び予備補給水の考えからである。From the circulating water tank 104 to the pump filter 11
5, the circulating water is supplied to the water-sealed conveyor water tank 3 in a closed loop through the pipe 130 and the slurry pump 120 and the check valve 121. As described above, the circulating water system is provided in the conventional apparatus because the water temperature is generated by heating from the water surface of the water 7 in the water tank 3 of the water-sealed conveyor facing the furnace bottom hopper 60 (radiant heat, hopper heat transfer). Rises (10
It is considered that the temperature is close to 0 ° C.), and for that reason, the circulation water system is installed for cooling and preliminary makeup water is considered.
【０００７】このため、従来の水封コンベア装置には次
のような欠点があった。Therefore, the conventional water-sealed conveyor device has the following drawbacks.
【０００８】（１）水封コンベアが灰回収コンベアであ
るが、系外に循環水システムを設けたため制作コスト、
ランニングコストが多く必要な上、常時循環水を流して
いて無駄が多かった。(1) The water-sealing conveyor is an ash recovery conveyor, but since the circulating water system is provided outside the system, the production cost,
There was a lot of running cost, and there was a lot of waste because the circulating water was constantly flowing.
【０００９】（２）沈澱槽１０３、循環水槽１０４は少
なくとも水封コンベアに貯槽されている水の容積よりも
大きくなければならず土建工事が高価なものとなる。(2) The settling tank 103 and the circulating water tank 104 must be at least larger than the volume of water stored in the water-sealed conveyor, which makes the construction work expensive.
【００１０】（３）循環水システムに使われる循環水ポ
ンプ１２０は磨耗しやすい条件下で作動されるため仕様
がスラリー対策で高価である上、その消耗が激しく、そ
の駆動のための動力も必要であるためランニングコスト
が大きかった。(3) Since the circulating water pump 120 used in the circulating water system is operated under a condition where it is easily worn, its specifications are expensive as a countermeasure against slurry, its consumption is heavy, and power for its driving is also required. Therefore, the running cost was high.
【００１１】（４）沈澱槽１０３に貯まった灰は硬化し
排出がやりにくいため、月１回ぐらいバキュームカーに
て排出あるいは人力による排出がなされておりメンテナ
ンスに手間取っている。(4) Since the ash stored in the settling tank 103 hardens and is difficult to discharge, it is discharged once a month in a vacuum car or manually, which is troublesome for maintenance.
【００１２】[0012]
【発明が解決しようとする課題】本発明は、従来の水封
コンベア装置における欠点の原因となっていた循環水シ
ステムの使用をやめ、しかも水封コンベアとして充分に
その機能を達成しうるよう構成した装置を提供すること
を課題としている。DISCLOSURE OF THE INVENTION The present invention is constructed so that the circulating water system, which has been the cause of the drawbacks in the conventional water-sealed conveyor device, can be stopped and the function can be sufficiently achieved as the water-sealed conveyor. It is an object to provide such a device.
【００１３】[0013]
【課題を解決するための手段】本発明は、炉底ホッパー
の下に配設され水封用の水を収容している水槽、同水槽
内の灰を掻き上げるスクレーパ付チェーン、前記水槽内
の水位を検出するレベルスイッチ、及び同レベルスイッ
チによって作動される開閉弁つきの補給水ラインを有す
る水封式炉底灰コンベア装置において前記課題を解決す
るため、水槽内の水に対する循環水システムを設けるの
をやめると共に、水槽に対しボールタップ弁付き補給水
ラインを付設した構成とする。DISCLOSURE OF THE INVENTION The present invention is directed to a water tank which is disposed under a furnace bottom hopper and stores water for water sealing, a chain with a scraper for scraping up ash in the water tank, and a water tank for storing water in the water tank. In order to solve the above problems in a water-sealed furnace bottom ash conveyor device having a level switch for detecting the water level, and a make-up water line with an on-off valve operated by the level switch, a circulating water system for water in a water tank is provided. In addition to stopping the operation, a makeup water line with a ball tap valve is attached to the water tank.
【００１４】本発明は、水封コンベアの温度上昇は補給
水が規定量あれば熱が気化熱により奪われるため高温と
なることはないとの新しい知見に基づいて種々の検討、
テストの結果得られたものである。本発明では、水槽内
に所定量の補給が確実に行われるよう補給水ラインの二
重化を行なう。The present invention makes various investigations based on the new finding that the temperature rise of the water-sealed conveyor does not become high because the heat is removed by the heat of vaporization if the make-up water has a specified amount.
It is the result of the test. In the present invention, the make-up water line is duplicated so that a predetermined amount of water can be surely replenished in the water tank.
【００１５】[0015]
【作用】水封コンベアの機能としては従来の装置と変わ
らない。本発明においては、従来の水封コンベア装置に
用いられていた循環水システム（沈澱槽、循環水槽、循
環ポンプ等）をなくしたことにより、炉底灰は完全に水
封コンベアで効率良く回収されるようになった。水封コ
ンベアは補給水が常に供給できることを前提としている
（蒸発量と灰付着水分として減少する分を補給）。The function of the water-sealed conveyor is the same as that of the conventional device. In the present invention, since the circulating water system (precipitation tank, circulating water tank, circulating pump, etc.) used in the conventional water-sealing conveyor device is eliminated, the bottom ash is completely efficiently recovered by the water-sealing conveyor. It became so. The water-sealed conveyor is based on the assumption that make-up water can always be supplied (supplementing the amount of evaporation and the amount that decreases as ash attached water).
【００１６】本発明においては、ボールタップ弁付きの
補給水ラインを付設し、従来から設けられているレベル
スイッチやそれによって作動される補給水ラインに故障
が生じても補給水を確実に供給できる。In the present invention, a make-up water line with a ball tap valve is additionally provided, so that the make-up water can be surely supplied even if a failure occurs in the level switch and the make-up water line operated by the conventional level switch.
【００１７】[0017]
【実施例】以下、図１に示した本発明の一実施例による
水封コンベア装置について具体的に説明する。なお、図
１において、図２に示した従来の装置と同じ部分につい
ては図２と同じ符号を付してあり、それらについては重
複する説明を省略する。図１において、２９は補給水ラ
イン２４と別に設けられた水封コンベアの水槽３に対す
る補給水ラインで、この補給水ライン２９にはボールタ
ップ弁２５が設けられている。このボールタップ弁２５
つきの補給水ライン２９は、レベルスイッチ２６のトラ
ブルや、ＯＮ・ＯＦＦ弁２２のトラブルに対応するため
のものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A water-sealed conveyor device according to an embodiment of the present invention shown in FIG. 1 will be specifically described below. In FIG. 1, the same parts as those of the conventional device shown in FIG. 2 are denoted by the same reference numerals as those in FIG. 2, and duplicate description thereof will be omitted. In FIG. 1, 29 is a make-up water line for the water tank 3 of the water seal conveyor provided separately from the make-up water line 24, and a ball tap valve 25 is provided in the make-up water line 29. This ball tap valve 25
The auxiliary make-up water line 29 is for dealing with a trouble of the level switch 26 and a trouble of the ON / OFF valve 22.
【００１８】２７は水封コンベアの水抜き用の弁であ
り、常時は閉めてある。２８は水槽３からのオーバーフ
ローラインであるが、このオーバーフローライン２８に
おいてはオーバーフローは常時は流れない。レベル管理
上も従来と比較しオーバーフローは補足的なものであ
り、炉内圧変動により発生したレベル変動による水位が
高くなった分を吸収するものである。従って、７０は排
水溝であるが特別大きいものは必要としない。Reference numeral 27 denotes a water draining valve of the water-sealed conveyor, which is normally closed. Although 28 is an overflow line from the water tank 3, the overflow does not always flow in this overflow line 28. In terms of level management, overflow is complementary to the conventional one, and absorbs the increase in water level due to level fluctuations caused by fluctuations in reactor pressure. Therefore, although 70 is a drain, a specially large drain is not required.
【００１９】以上、本発明を図示した実施例に基づいて
具体的に説明したが、本発明がこれらの実施例に限定さ
れず特許請求の範囲に示す本発明の範囲内で、その形
状、構造に種々の変更を加えてよいことはいうまでもな
い。The present invention has been specifically described above based on the illustrated embodiments, but the present invention is not limited to these embodiments and the shape and structure thereof are within the scope of the present invention shown in the claims. It goes without saying that various changes may be added to the.
【００２０】[0020]
【発明の効果】本発明による水封コンベア装置において
は、従来、水封コンベアに付属していた循環水システム
を不要としたことにより、運転の完全自動化と沈澱槽、
循環水槽、循環水ポンプ等の運転コストやメンテナンス
が不要となった。In the water-sealed conveyor device according to the present invention, since the circulating water system conventionally attached to the water-sealed conveyor is not required, the operation is completely automated and the settling tank,
The operating costs and maintenance of circulating water tanks and circulating water pumps are no longer required.
【００２１】また、循環水システム制作時のイニシャル
コストが不要となり、省人省力化が可能となった。本発
明による水封コンベア装置においては、炉底灰回収は全
部水封コンベアで可能となり、ボイラ運転上も補機の効
率をあげることとなり補機動力の低減となる。Further, the initial cost for producing the circulating water system is not required, and the labor and labor can be saved. In the water-sealed conveyor device according to the present invention, all of the bottom ash can be collected by the water-sealed conveyor, which improves the efficiency of the auxiliary machine in the boiler operation and reduces the auxiliary machine power.
【図１】本発明の一実施例に係る水封式炉底灰コンベア
の系統図。FIG. 1 is a system diagram of a water-sealed bottom ash conveyor according to an embodiment of the present invention.
【図２】従来の循環水システムを付属した水封式炉底灰
コンベアの系統図。FIG. 2 is a system diagram of a water-sealed furnace bottom ash conveyor equipped with a conventional circulating water system.
１ 水封式炉底灰コンベアのケーシング ２ スクレーパ付チェーン ３ 水封式炉底灰コンベアの水槽 ４ 水位レベル ５ 歯車 ６ 駆動歯車 ７ 水槽内の水 １０ モータ １１ 水封式炉底灰コンベアケーシング下部 １２ 基礎 ２１ 補給水 ２２ ＯＮ・ＯＦＦ弁 ２３ バイパス補給弁 ２４ 補給水ライン ２５ ボールタップ弁 ２６ レベルスイッチ ２７ 水抜き弁 ２８ オーバーフロー ２９ 補給水ライン ３０ ボトムアッシュサイロ ５０ ボイラ炉内 ６０ 炉底ホッパー ７０ 排水溝 1 Casing of water-sealed bottom ash conveyor 2 Chain with scraper 3 Water tank of water-sealed bottom ash conveyor 4 Water level 5 Gear 6 Drive gear 7 Water in water tank 10 Motor 11 Lower part of water-sealed bottom ash conveyor casing 12 Foundation 21 Make-up water 22 ON / OFF valve 23 Bypass make-up valve 24 Make-up water line 25 Ball tap valve 26 Level switch 27 Drain valve 28 Overflow 29 Make-up water line 30 Bottom ash silo 50 Boiler furnace 60 Furnace bottom hopper 70 Drain groove
Claims (1)
を収容している水槽、同水槽内の灰を掻き上げるスクレ
ーパ付チェーン、前記水槽内の水位を検出するレベルス
イッチ、及び同レベルスイッチによって作動される開閉
弁つきの補給水ラインを有する水封式炉底灰コンベア装
置において、前記水槽に対するボールタップ弁付き補給
水ラインを付設し、同水槽内の水に対する循環水システ
ムを設けていないことを特徴とする水封式炉底灰コンベ
ア装置。1. A water tank disposed under a bottom hopper for containing water for water sealing, a chain with a scraper for scraping up ash in the water tank, a level switch for detecting a water level in the water tank, and In a water-sealed bottom ash conveyor device having a make-up water line with an on-off valve operated by the same level switch, a make-up water line with a ball tap valve is attached to the water tank, and a circulating water system for water in the water tank is provided. A water-sealed furnace bottom ash conveyor device that is characterized by not having it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15221193A JP3217544B2 (en) | 1993-06-23 | 1993-06-23 | Water ring type bottom ash conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15221193A JP3217544B2 (en) | 1993-06-23 | 1993-06-23 | Water ring type bottom ash conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0712325A true JPH0712325A (en) | 1995-01-17 |
| JP3217544B2 JP3217544B2 (en) | 2001-10-09 |
Family
ID=15535504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15221193A Expired - Lifetime JP3217544B2 (en) | 1993-06-23 | 1993-06-23 | Water ring type bottom ash conveyor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3217544B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012180969A (en) * | 2011-03-01 | 2012-09-20 | Nippon Steel Engineering Co Ltd | Slag processing apparatus in waste melting processing plant |
| CN102809164A (en) * | 2012-08-03 | 2012-12-05 | 中国电力工程顾问集团西北电力设计院 | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant |
| JP6269898B1 (en) * | 2016-11-14 | 2018-01-31 | 中国電力株式会社 | Ash treatment channel maintenance system |
| JP2019078512A (en) * | 2017-10-27 | 2019-05-23 | 川崎重工業株式会社 | Petroleum residue combustion system |
| CN112113234A (en) * | 2020-08-05 | 2020-12-22 | 常熟浦发第二热电能源有限公司 | Automatic water supply control system of ash conveying machine under slag extractor and furnace |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006078150A (en) * | 2004-09-06 | 2006-03-23 | Tanabe:Kk | Conveying device of water granulated slag |
-
1993
- 1993-06-23 JP JP15221193A patent/JP3217544B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012180969A (en) * | 2011-03-01 | 2012-09-20 | Nippon Steel Engineering Co Ltd | Slag processing apparatus in waste melting processing plant |
| CN102809164A (en) * | 2012-08-03 | 2012-12-05 | 中国电力工程顾问集团西北电力设计院 | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant |
| JP6269898B1 (en) * | 2016-11-14 | 2018-01-31 | 中国電力株式会社 | Ash treatment channel maintenance system |
| WO2018087920A1 (en) * | 2016-11-14 | 2018-05-17 | 中国電力株式会社 | Maintenance system for ash treatment waterway |
| JP2019078512A (en) * | 2017-10-27 | 2019-05-23 | 川崎重工業株式会社 | Petroleum residue combustion system |
| CN112113234A (en) * | 2020-08-05 | 2020-12-22 | 常熟浦发第二热电能源有限公司 | Automatic water supply control system of ash conveying machine under slag extractor and furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3217544B2 (en) | 2001-10-09 |
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