JPS63753Y2 - - Google Patents
Info
- Publication number
- JPS63753Y2 JPS63753Y2 JP1984130199U JP13019984U JPS63753Y2 JP S63753 Y2 JPS63753 Y2 JP S63753Y2 JP 1984130199 U JP1984130199 U JP 1984130199U JP 13019984 U JP13019984 U JP 13019984U JP S63753 Y2 JPS63753 Y2 JP S63753Y2
- Authority
- JP
- Japan
- Prior art keywords
- chute
- charging
- distance
- furnace
- time
- 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
Links
- 239000002994 raw material Substances 0.000 claims description 9
- 241000273930 Brevoortia tyrannus Species 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000002801 charged material Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
この考案はベルレス高炉装入装置における原料
装入時間の測定装置に関するものである。[Detailed description of the invention] (a) Industrial application field This invention relates to a device for measuring material charging time in a bellless blast furnace charging device.
(ロ) 従来の技術
高炉におけるベルレス装入装置においては、第
３図に示すように炉頂バンカー１ａに貯留された
コークス２ａ、および炉頂バンカー１ｂに貯留さ
れた鉱石類２ｂは、シール弁３ａ，３ｂを開放し
て流調ゲート弁４ａ，４ｂをコントロールしなが
ら交互に排出され、集合シユート５の下方垂直シ
ユート６に設けられた原料粒度の偏析を防止する
傾動スロート７を通つて旋回シユート８で円を抽
きながら炉内９の円周上に均等あるいは所望の分
布に装入される。(B) Prior Art In a bellless charging device for a blast furnace, as shown in FIG. , 3b are opened to control the flow control gate valves 4a, 4b, the material is discharged alternately to the rotating chute 8 through the tilting throat 7 provided in the lower vertical chute 6 of the collecting chute 5 to prevent segregation of raw material particle size. The materials are charged evenly or in a desired distribution on the circumference of the furnace 9 while drawing a circle.
所望の装入分布を得るためには、旋回シユート
８の出発点と終点とが同じ角度になるように装入
速度を調整する必要がある。装入速度を調整する
機能として前記流調ゲート弁４があり、この開度
設定により装入速度を調整している。 In order to obtain the desired charging distribution, it is necessary to adjust the charging speed so that the starting and ending points of the rotating chute 8 are at the same angle. The flow regulating gate valve 4 is provided as a function to adjust the charging speed, and the charging speed is adjusted by setting the opening degree of the flow regulating gate valve 4.
ところで、この装入速度の計測については装入
している間に測定することは技術的に非常に難か
しく、装入１回ごとに装入開始から装入終了まで
の実積時間を測定し、予め測定されている装入物
の重量から装入速度を求めるのが普通である。但
し、この装入時間の開始時点は下部シール弁３
ａ，３ｂを開く瞬間であり、比較的簡単に把握で
きるが、終了時点すなわち装入物が無くなつた時
点を把握することは技術的に難かしい。この装入
時間を測定する手段として、例えば特開昭56−
169713号公報にあるように音響センサーもしくは
振動計の装入時間検出器１０を集合シユート５に
設置して測定する方法がある。 By the way, it is technically very difficult to measure the charging speed during charging, so the actual time from the start of charging to the end of charging is measured for each charging. Generally, the charging speed is determined from the weight of the charged material, which has been measured in advance. However, at the start of this charging time, the lower seal valve 3
This is the moment when a and 3b are opened, and it is relatively easy to grasp, but it is technically difficult to grasp the end point, that is, the moment when the charge is exhausted. As a means of measuring this charging time, for example,
As described in Japanese Patent No. 169713, there is a method of measuring by installing a charging time detector 10 such as an acoustic sensor or a vibration meter in the collection chute 5.
(ハ) 考案が解決しようとする問題点
前記、従来の音響センサー、そもしくは振動計
方式は、他の雑音が入り易い環境では装入物の性
状が変化したときなど雑音と装入物の落下音、あ
るいは落下振動との区別が難かしく調整がしづら
い問題点を有していた。(c) Problems to be solved by the invention As mentioned above, the conventional acoustic sensor or vibration meter method is susceptible to noise and dropping of the charge when the properties of the charge change, etc. in an environment where other noises are likely to enter. The problem was that it was difficult to distinguish between sound and vibration from falling, and adjustment was difficult.
(ニ) 問題点を解決するための手段
本考案の構成は複数の炉頂バンカーと集合シユ
ートを具え、旋回シユートを介して炉内へ原料を
装入するベルレス高炉における原料の装入時間を
測定する装置において、前記集合シユート内に設
けられた傾動スロート中空部と前記旋回シユート
を直線で結ぶ集合シユート上部に非接触式距離計
を設け、該距離計から傾動スロート通過中の装入
物までの距離、および旋回シユートまでの距離を
測定し、その距離差から原料の装入開始と終了ま
での時間を測定するものである。上記非接触式距
離計としては、例えば超音波あるいはμ波を利用
した距離計が実用上有利である。(d) Means for solving the problem The configuration of the present invention is equipped with a plurality of top bunkers and a collection chute, and measures the charging time of raw materials in a bellless blast furnace in which raw materials are charged into the furnace via a rotating chute. In this apparatus, a non-contact distance meter is installed in the upper part of the collecting chute that connects the hollow part of the tilting throat provided in the collecting chute in a straight line with the rotating chute, and a non-contact distance meter is installed in the upper part of the collecting chute that connects the hollow part of the tilting throat provided in the collecting chute with a straight line. The distance and the distance to the rotating chute are measured, and the time from the distance difference between the two to the start and end of raw material charging is measured. As the above-mentioned non-contact distance meter, for example, a distance meter using ultrasonic waves or μ waves is practically advantageous.
すなわち、原料が炉頂ホツパーから排出されて
炉内に装入される時間、つまり集合シユート、垂
直シユートを落下通過中は集合シユート上部と装
入物の落下表面までの距離を測定し、装入が終了
した時点では集合シユートと旋回シユート間の距
離を測定することによつて明確に識別し、装入開
始から装入終了までを正確に測定するものであ
る。 In other words, during the time when the raw material is discharged from the furnace top hopper and charged into the furnace, that is, while it is falling through the collecting chute and vertical chute, the distance between the top of the collecting chute and the falling surface of the charge is measured, and the charging time is measured. At the end of charging, it can be clearly identified by measuring the distance between the collection chute and the turning chute, and the period from the start of charging to the end of charging can be accurately measured.
(ニ) 作用
この考案は集合シユートの上部に設置した超音
波、あるいはμ波を利用した距離測定信号に基づ
いて炉頂バンカーからの排出開始、終了を正確に
検知して実排出時間を求め、この排出時間とバン
カーの質量計に基づいて旋回シユートの回転数を
決定し、原料の種類、性状の変化に影響されるこ
となく装入分布を適切に制御して安定した高炉の
操業を確保し得ることが可能とするものである。(D) Effect This invention accurately detects the start and end of discharge from the top bunker based on distance measurement signals using ultrasonic waves or μ waves installed at the top of the collection chute, calculates the actual discharge time, and calculates the actual discharge time. The rotation speed of the rotating chute is determined based on this discharge time and the mass meter in the bunker, and the charging distribution is appropriately controlled without being affected by changes in the type or properties of the raw materials, ensuring stable blast furnace operation. It is possible to obtain.
(ヘ) 実施例
本考案の実施例について説明する。第１図に示
すように集合シユート５の上部にμ波の距離測定
検出器１１を設置し、垂直下方にμ波を発射す
る。装入物２ａがバンカー１ａより排出され、集
合シユート５、垂直シユート６を通過していると
きは、通過中の装入物表面までの距離laを測定
し、通過していないときは傾動スロート７は上下
開放の中空になつているのでμ波は旋回シユート
８までの距離lbを測定する。この測定信号は第２
図に示すような出力信号となり、排出開始から排
出終了までの低いμ波信号ｔが炉内９への装入時
間であり、この装入時間とバンカー１ａ，１ｂの
質量計に基づいて旋回シユート８の回転数を決定
し、流調ゲート弁４ａ，４ｂで装入速度をコント
ロールして炉内９における装入分布を適切に制御
することができた。尚、本実施例ではμ波で距離
を測定したが超音波でも同様の測定が可能であ
る。(f) Examples Examples of the present invention will be described. As shown in FIG. 1, a μ-wave distance measuring detector 11 is installed above the collective chute 5 and emits μ-waves vertically downward. When the charge 2a is discharged from the bunker 1a and is passing through the collection chute 5 and the vertical chute 6, the distance la to the surface of the charge being passed is measured, and when the charge is not passing through, the tilting throat 7 is measured. Since it is hollow with an open top and bottom, the μ wave measures the distance lb to the rotating chute 8. This measurement signal is the second
The output signal is as shown in the figure, and the low μ-wave signal t from the start of discharge to the end of discharge is the charging time into the furnace 9, and the rotating chute is calculated based on this charging time and the mass meters of the bunkers 1a and 1b. By determining the rotation speed of the furnace 8 and controlling the charging speed using the flow control gate valves 4a and 4b, it was possible to appropriately control the charging distribution in the furnace interior 9. In this embodiment, the distance was measured using μ waves, but similar measurements can be made using ultrasonic waves.
(ト) 効果
以上説明したようにこの考案によれば、常に正
確な実排出時間が得られるので、所要の適正な装
入分布を得ることができ、安定した高炉操業を確
保することができる。(g) Effects As explained above, according to this invention, accurate actual discharge time can always be obtained, so the required and appropriate charging distribution can be obtained, and stable blast furnace operation can be ensured.
第１図はこの考案の実施例を示す装入装置正断
面図、第２図は同じく実施例におけるμ波出力と
時間の関係図、第３図は従来技術の説明図でベル
レス高炉装置を示す正断面図である。
１ａ，１ｂ……炉頂バンカー、２ａ……コーク
ス、２ｂ……鉱石類、３ａ，３ｂ……シール弁、
４ａ，４ｂ……流調ゲート弁、５……集合シユー
ト、６……垂直シユート、７……傾動スロート、
８……旋回シユート、９……炉内、１０……音響
センサー、１１……距離検出器。
Fig. 1 is a front sectional view of a charging device showing an embodiment of this invention, Fig. 2 is a diagram of the relationship between μ-wave output and time in the same embodiment, and Fig. 3 is an explanatory diagram of the prior art, showing a bellless blast furnace apparatus. FIG. 1a, 1b... Furnace top bunker, 2a... Coke, 2b... Ores, 3a, 3b... Seal valve,
4a, 4b...flow control gate valve, 5...collecting chute, 6...vertical chute, 7...tilting throat,
8... Rotating chute, 9... Inside the reactor, 10... Acoustic sensor, 11... Distance detector.
Claims (1)
旋回シユートを介して炉内へ原料を装入するベル
レス高炉における原料の装入時間を測定する装置
において、前記集合シユート内に設けられた傾動
スロート中空部と前記旋回シユートを直線で結ぶ
集合シユート上部に非接触式距離計を設け、該距
離計から傾動スロート通過中の装入物までの距
離、および旋回シユートまでの距離を測定し、そ
の距離差から原料の装入開始と終了までの時間を
測定することを特徴とするベルレス高炉装入装置
における原料装入時間の測定装置。 Equipped with multiple furnace top bunkers and a collection chute,
In an apparatus for measuring the charging time of raw materials in a bellless blast furnace in which raw materials are charged into the furnace through a rotating chute, an upper part of the collecting chute connects a tilting throat hollow part provided in the collecting chute with a straight line between the rotating chute. A non-contact distance meter is installed in the holder, and the distance from the distance meter to the charged material passing through the tilting throat and the distance to the rotating chute is measured, and from the difference in distance, the time from the start to the end of material charging is calculated. A device for measuring raw material charging time in a bellless blast furnace charging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13019984U JPS6147054U (en) | 1984-08-28 | 1984-08-28 | Measuring device for raw material charging time in bellless blast furnace charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13019984U JPS6147054U (en) | 1984-08-28 | 1984-08-28 | Measuring device for raw material charging time in bellless blast furnace charging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6147054U JPS6147054U (en) | 1986-03-29 |
| JPS63753Y2 true JPS63753Y2 (en) | 1988-01-09 |
Family
ID=30688815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13019984U Granted JPS6147054U (en) | 1984-08-28 | 1984-08-28 | Measuring device for raw material charging time in bellless blast furnace charging equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6147054U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54142775A (en) * | 1978-04-24 | 1979-11-07 | Ishikawajima Harima Heavy Ind Co Ltd | Material loading apparatus |
-
1984
- 1984-08-28 JP JP13019984U patent/JPS6147054U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54142775A (en) * | 1978-04-24 | 1979-11-07 | Ishikawajima Harima Heavy Ind Co Ltd | Material loading apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6147054U (en) | 1986-03-29 |
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