JPH08325581A - Device for monitoring slag drop state - Google Patents
Device for monitoring slag drop stateInfo
- Publication number
- JPH08325581A JPH08325581A JP13498195A JP13498195A JPH08325581A JP H08325581 A JPH08325581 A JP H08325581A JP 13498195 A JP13498195 A JP 13498195A JP 13498195 A JP13498195 A JP 13498195A JP H08325581 A JPH08325581 A JP H08325581A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- output
- receiving
- amplifier
- cooling water
- 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.)
- Pending
Links
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は事業用、産業用の石炭ガ
ス化設備に適用されるスラグ落下状況監視装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slag drop condition monitoring device applied to commercial and industrial coal gasification equipment.
【０００２】[0002]
【従来の技術】従来技術の例を図５に示す。火炉壁管４
で周壁を構成する燃焼炉１にはバーナ６が設置されてお
り、微粉炭及びチャーが投入される。これ等燃料中の灰
分が溶融スラグとして燃焼炉１の底部に溜り、スラグホ
ール２から下部のスラグホッパ３へ流れ落ちる。スラグ
ホッパ３内には冷却水が漲られており、流れ落ちた溶融
スラグを冷却・固化して下部から系外へ排出する。2. Description of the Related Art An example of the prior art is shown in FIG. Furnace wall tube 4
The burner 6 is installed in the combustion furnace 1 forming the peripheral wall, and pulverized coal and char are charged therein. The ash content in these fuels is accumulated as molten slag at the bottom of the combustion furnace 1 and flows down from the slag hole 2 to the lower slag hopper 3. Cooling water is poured in the slag hopper 3, and the molten slag that has flowed down is cooled and solidified and discharged from the lower part to the outside of the system.
【０００３】このようなガス化設備においては、溶融ス
ラグを確実にスラグホールから排出することが重要であ
るが、これを監視する為にスラグホール４の下部に設置
したスラグホール監視テレビカメラ２０で、撮影した像
をテレビモニタ２１により状況監視を行っていた。In such a gasification facility, it is important to surely discharge the molten slag from the slag hole, but in order to monitor this, a slag hole monitoring television camera 20 installed below the slag hole 4 is used. The condition of the photographed image was monitored by the TV monitor 21.
【０００４】[0004]
【発明が解決しようとする課題】上記従来のテレビカメ
ラで撮影するような光学系の監視では炉内のダーティな
雰囲気による観察窓の汚れが顕著になり、長期使用困難
になり、ひんぱんに掃除する必要があった。In the monitoring of an optical system such as the one taken by the conventional TV camera, the observation window is contaminated due to the dirty atmosphere in the furnace, which makes it difficult to use for a long period of time and frequently cleans it. There was a need.
【０００５】[0005]
【課題を解決するための手段】本発明は上記課題を解決
するため次の手段を講ずる。The present invention employs the following means to solve the above-mentioned problems.
【０００６】すなわち、スラグ落下状況監視装置とし
て、溶融スラグをスラグホールを通じスラグホッパの冷
却水中に排出するガス化炉の上記スラグホッパの冷却水
中に設けられた水中マイクロホンと、同水中マイクロホ
ンの出力を受ける増幅器と、同増幅器の出力を受けるバ
ンドパスフィルタと、同バンドパスフィルタの出力を受
け記録するレベルレコーダとを設ける。That is, as a slag drop state monitoring device, a submersible microphone provided in the cooling water of the slag hopper of the gasification furnace for discharging molten slag into the cooling water of the slag hopper through the slag hole, and an amplifier for receiving the output of the submersible microphone. A bandpass filter for receiving the output of the amplifier, and a level recorder for receiving and recording the output of the bandpass filter.
【０００７】[0007]
【作用】上記発明において、水中マイクロホンで冷却水
中への溶融スラグの落下音が受信され、増幅器で増幅さ
れる。増幅器の出力には溶融スラグの落下音および雑音
が含まれているので、所定のバンド幅のバンドパスフィ
ルタで雑音が除去され出力される。この信号はレベルレ
コーダで記録され、この時間記録波形からスラグ落下状
況が監視される。In the above invention, the sound of the molten slag falling into the cooling water is received by the underwater microphone and amplified by the amplifier. Since the output of the amplifier contains the dropping sound of the molten slag and the noise, the noise is removed by the bandpass filter having a predetermined bandwidth and the noise is output. This signal is recorded by a level recorder, and the slag fall situation is monitored from this time recording waveform.
【０００８】このようにして、スラグの落下音が良好に
抽出でき、信頼性の高い監視が可能となる。特に従来の
ような光学系を用いないので、炉内のダーティな雰囲気
に殆ど影響されることなく長時間連続して監視できる。In this way, the falling sound of the slag can be satisfactorily extracted and highly reliable monitoring becomes possible. In particular, since the conventional optical system is not used, it is possible to continuously monitor for a long time without being affected by the dirty atmosphere in the furnace.
【０００９】[0009]
【実施例】上記本発明の一実施例を図１〜図４により説
明する。図１にて、スラグホッパ３に挿入された冷却水
導入管８の先端部に水中マイクロホン７が配置される。
水中マイクロホン７の出力は増幅器９、バンドパスフィ
ルタ（５〜８ｋHz通過）１０を順次経てレベルレコーダ
１１へ送られる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. In FIG. 1, a hydrophone 7 is arranged at the tip of a cooling water introduction pipe 8 inserted into the slag hopper 3.
The output of the underwater microphone 7 is sent to a level recorder 11 through an amplifier 9 and a band pass filter (passing 5 to 8 kHz) 10 in sequence.
【００１０】以上において、水中マイクロホン７で、冷
却水中への溶融スラグａの落下音が受信され、増幅器９
で増幅される。増幅器９の出力には溶融スラグの落下音
および雑音が含まれているので、バンドパスフィルタ１
０で雑音が除去され出力される。この信号はレベルレコ
ーダ１１で記録され、この時間記録波形からスラグ落下
状況が監視される。In the above, the dropping sound of the molten slag a into the cooling water is received by the underwater microphone 7, and the amplifier 9
Is amplified by. Since the output of the amplifier 9 includes the dropping sound and noise of the molten slag, the bandpass filter 1
At 0, noise is removed and output. This signal is recorded by the level recorder 11, and the slag fall situation is monitored from this time recording waveform.
【００１１】図２と図３に時間記録波形の一例を示す。
図３はバンドパスフィルタ１０を使用しなかったときの
時間記録波形で、図２はバンドパスフィルタ１０を使用
したときのものを示す。雑音が除去され、落下音が明確
に分る。また図４は、雑音が少なかったときの、バンド
パスフィルタ１０なしの波形を参考のため示した。2 and 3 show examples of time recording waveforms.
FIG. 3 shows a time recording waveform when the bandpass filter 10 is not used, and FIG. 2 shows one when the bandpass filter 10 is used. The noise is removed and the falling sound is clearly visible. Further, FIG. 4 shows, for reference, a waveform without the bandpass filter 10 when the noise is small.
【００１２】以上のようにして、スラグの落下音が良好
に抽出でき、信頼性の高い監視が可能となる。特に従来
のような光学系を用いないので、炉内のダーティな雰囲
気に殆ど影響されることなく長時間連続して監視でき
る。As described above, the falling sound of the slag can be satisfactorily extracted, and highly reliable monitoring is possible. In particular, since the conventional optical system is not used, it is possible to continuously monitor for a long time without being affected by the dirty atmosphere in the furnace.
【００１３】[0013]
【発明の効果】以上に説明したように、本発明により、
従来技術では困難であった石炭ガス化炉におけるスラグ
ホールからの溶融スラグ落下状況の長期監視が可能とな
る。As described above, according to the present invention,
This enables long-term monitoring of the molten slag drop situation from the slag hole in the coal gasification furnace, which was difficult with the conventional technology.
【図１】本発明の一実施例の構成系統図である。FIG. 1 is a configuration system diagram of an embodiment of the present invention.
【図２】同実施例の作用説明図である。FIG. 2 is an explanatory view of the operation of the same embodiment.
【図３】同実施例の作用説明図である。FIG. 3 is an explanatory view of the operation of the embodiment.
【図４】同実施例の作用説明図である。FIG. 4 is an explanatory view of the operation of the embodiment.
【図５】従来例の構成系統図である。FIG. 5 is a configuration system diagram of a conventional example.
１ 燃焼炉（ガス化炉） ２ スラグホール ３ スラグホッパ ４ 火炉壁管 ５ 火炉下部管寄せ ６ バーナー ７ 水中マイクロホン ８ 冷却水管 ９ 増幅器 １０ バンドパスフィルタ １１ レベルレコーダ 1 Combustion furnace (gasification furnace) 2 Slag hole 3 Slag hopper 4 Furnace wall tube 5 Lower furnace heading 6 Burner 7 Underwater microphone 8 Cooling water tube 9 Amplifier 10 Bandpass filter 11 Level recorder
Claims (1)
ホッパの冷却水中に排出するガス化炉の上記スラグホッ
パの冷却水中に設けられた水中マイクロホンと、同水中
マイクロホンの出力を受ける増幅器と、同増幅器の出力
を受けるバンドパスフィルタと、同バンドパスフィルタ
の出力を受け記録するレベルレコーダとを備えてなるこ
とを特徴とするスラグ落下状況監視装置。1. A submersible microphone provided in the cooling water of the slag hopper of a gasification furnace for discharging molten slag into the cooling water of the slag hopper through a slag hole, an amplifier for receiving the output of the underwater microphone, and an output of the amplifier. A slag fall situation monitoring device comprising a receiving bandpass filter and a level recorder for receiving and recording the output of the bandpass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13498195A JPH08325581A (en) | 1995-06-01 | 1995-06-01 | Device for monitoring slag drop state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13498195A JPH08325581A (en) | 1995-06-01 | 1995-06-01 | Device for monitoring slag drop state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08325581A true JPH08325581A (en) | 1996-12-10 |
Family
ID=15141138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13498195A Pending JPH08325581A (en) | 1995-06-01 | 1995-06-01 | Device for monitoring slag drop state |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08325581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009107253A1 (en) * | 2008-02-29 | 2009-09-03 | 三菱重工業株式会社 | Apparatus for monitoring situation of slag discharge and method of monitoring situation of slag discharge |
-
1995
- 1995-06-01 JP JP13498195A patent/JPH08325581A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009107253A1 (en) * | 2008-02-29 | 2009-09-03 | 三菱重工業株式会社 | Apparatus for monitoring situation of slag discharge and method of monitoring situation of slag discharge |
| JP2009209204A (en) * | 2008-02-29 | 2009-09-17 | Mitsubishi Heavy Ind Ltd | Device for monitoring situation of slag discharge |
| US20100207785A1 (en) * | 2008-02-29 | 2010-08-19 | Mitsubishi Heavy Industries, Ltd. | Slag discharge condition monitoring apparatus and method for monitoring slag discharge condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20031118 |