JPH0274543A - Method for controlling amount of cooling water in granulated slag production - Google Patents
Method for controlling amount of cooling water in granulated slag productionInfo
- Publication number
- JPH0274543A JPH0274543A JP22635288A JP22635288A JPH0274543A JP H0274543 A JPH0274543 A JP H0274543A JP 22635288 A JP22635288 A JP 22635288A JP 22635288 A JP22635288 A JP 22635288A JP H0274543 A JPH0274543 A JP H0274543A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- granulated slag
- amount
- granulated
- 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
- 239000002893 slag Substances 0.000 title claims abstract description 67
- 239000000498 cooling water Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 230000005484 gravity Effects 0.000 claims abstract description 13
- 230000018044 dehydration Effects 0.000 claims description 22
- 238000006297 dehydration reaction Methods 0.000 claims description 22
- 241001637516 Polygonia c-album Species 0.000 abstract 2
- 239000008187 granular material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、脱水槽下部に脱水スクリーンを備え、水砕ス
ラグを沈降させ水砕スラグの濾過作用を利用して脱水す
る、重力式脱水槽を用いて水砕ス、ラグを製造する際の
冷却水量制御方法に関し。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention provides a gravity-type dehydration tank which is equipped with a dewatering screen at the bottom of the dehydration tank, and which sediments granulated slag and dehydrates it by utilizing the filtration action of the granulated slag. Regarding the method of controlling the amount of cooling water when manufacturing granulated water slurry and lag using.
更に詳しくは、水砕の品質向上を図る技術に関する。More specifically, the present invention relates to a technique for improving the quality of granulated water.
［従来の技術］
水砕の品質の安定化を図るためには、スラグ量を常時杷
握し、変動するスラグ量に応じて冷却水量を制御する必
要がある。[Prior Art] In order to stabilize the quality of granulated water, it is necessary to constantly control the amount of slag and control the amount of cooling water in accordance with the fluctuating amount of slag.
スラグの量を計測する手段としては、直接溶融スラグの
量を測定する方法、連続脱水装置の負荷量を測定し演算
により求める方法、脱水後の水砕スラグ輸送用コンベヤ
ーにロードセルを取付けて測定する方法等が種々提案さ
れている。The amount of slag can be measured by directly measuring the amount of molten slag, by measuring the load on the continuous dewatering device and calculating it, or by attaching a load cell to the conveyor for transporting the granulated slag after dewatering. Various methods have been proposed.
例えば、特開昭５６−２６７５２号では、脱水装置に水
砕重量を測定する重量測定装置を設けると共に、搬出コ
ンベヤーに水砕の流量を測定する流量測定装置を設け、
これらの測定値から炉から流出する溶滓の流量を算出し
ている。For example, in Japanese Patent Application Laid-Open No. 56-26752, a dewatering device is provided with a weight measuring device for measuring the weight of granulated water, and an unloading conveyor is provided with a flow rate measuring device for measuring the flow rate of granulated water.
The flow rate of slag flowing out of the furnace is calculated from these measured values.
〔発明が解決しようとする課題１
上述の従来技術においては、水砕スラグが含水量の影響
を受け、その結果、いずれも測定精度が悪い等の理由で
未だに工業的に活用されている技術手段がなく、従って
、変動するスラブ量に応じた適切な冷却水量の制御方法
はないのが現状であった。[Problem to be Solved by the Invention 1] In the above-mentioned conventional techniques, the granulated slag is affected by the water content, and as a result, all of them have poor measurement accuracy, so technical means are still in use industrially. Therefore, there is currently no method for controlling the amount of cooling water appropriate to the fluctuating amount of slab.
本発明は上述の問題点を解決するために提案されたもの
であり、含水１の影響を受Ｇ）ないで水砕スラグ量を正
確に求め、この水砕スラグ量を４１！握することにより
、よりきめの細かい冷却水１制御方法を提供することを
課題とするものである。The present invention was proposed in order to solve the above-mentioned problems, and is to accurately determine the amount of granulated slag without being affected by the water content 1, and to calculate the amount of granulated slag by 41! It is an object of the present invention to provide a method for controlling cooling water 1 more precisely by controlling the amount of water.
［課題を解決するための手段Ｊ
本発明は、水砕スラグがスラリー状態にある脱水槽でそ
の重量と容積を計測し演算すれば、含水量の影響を受け
ないで水砕スラグ量を正確に測定することができるとい
う知見によるものであり、この水砕スラグ量によって冷
却水量を適切に制御用する方法である。[Means for Solving the Problems J] The present invention is capable of accurately determining the amount of granulated slag without being affected by water content by measuring and calculating the weight and volume of granulated slag in a dehydration tank in a slurry state. This is based on the knowledge that it is possible to measure the amount of granulated slag, and it is a method for appropriately controlling the amount of cooling water based on the amount of granulated slag.
本発明は上述の問題点を解決するもので、重力式脱水槽
を用いた水砕スラグ′５Ｊ造時の冷却水４制御方法に適
用され、次の方法を採った。すなわら、
脱水槽に脱水槽内の水砕スラグスラリーのｔａを計測す
る屯徽計測器を設けると共に水砕スラグスラリーの容積
を計測する容積計測器を設け、これらの計測値に基づき
、次式によりスラグ量を求め、スラグ量に応じて冷却水
量を制御する方法である。The present invention solves the above-mentioned problems and is applied to a cooling water 4 control method when producing granulated slag '5J using a gravity dewatering tank, and employs the following method. In other words, the dehydration tank is equipped with a tunhui measuring device that measures the ta of the granulated slag slurry in the dehydration tank, and a volume measuring device that measures the volume of the granulated slag slurry, and based on these measured values, the following This method calculates the amount of slag using a formula and controls the amount of cooling water according to the amount of slag.
Ｗ ｓ ＝ｙ ｓ （Ｗ ｙ ｗ Ｖ ） ／ （
Ｙ ｓ −Ｔ ｗ ）ただし、
Ｗｓ：水砕スラブの重量
Ｗ：脱水槽内の水砕スラグスラリーのｉｔＶ：脱水槽内
の水砕スラグスラリーの容積γｓ：水砕スラグの比重
γｗ：脱水槽内の水の比重
である。W s = y s (W y w V ) / (
Ys - Tw) However, Ws: Weight of granulated slab W: ItV of granulated slag slurry in the dehydration tank: Volume of granulated slag slurry in the dehydration tank γs: Specific gravity of granulated slag γw: Inside the dehydration tank is the specific gravity of water.
〔作用］
脱水槽内の水砕スラグスラリーの重量Ｗ、脱水槽内の水
砕スラグスラリーの容ｈｆｆ Ｖ、水砕スラグの比重γ
ｓ、脱水槽内の水の比重γ９から水砕スラグのａ 遣Ｗ
ｓが求められる理由を以下に説明する。[Function] Weight W of the granulated slag slurry in the dehydration tank, volume hff V of the granulated slag slurry in the dehydration tank, specific gravity γ of the granulated slag
s, a of the granulated slag from the specific gravity γ9 of water in the dewatering tank
The reason why s is required will be explained below.
脱水槽内の水砕スラグスラリーのｆｆ１ｆｆｆｉＷは、
水砕スラグの巾Ｉ Ｗ ｓと水の重ｉｗ、どの和で表わ
される。すなわら、
Ｗ ＝ Ｗ ｗ ＋ Ｗ ５
ここに、
Ｗｗ＝γｗ （ｖ Ｗｓ／γｓ）
で表わされるから、
Ｗ ＝ ｙ ｗ （Ｖ −Ｗ ｓ ／ ｙ ｓ ） ＋
Ｗ ｓ＝７ｗＶ γｗＷｓ／ｙ３＋Ｗ３
従って、
Ｗ５−７１１１Ｗ！ＩＴ ／ γｓ ＝Ｗ ７ Ｗ
ＶＷｓ （ｌ γｗ／γｓ）＝ｗ ＹｗＶＷｓ＝ｒ
ｓ （Ｗ γｗＶ）／ （γｓ γｗ）すなわち、
水砕スラグの重Ｉ Ｗ ｓが得られる。ff1fffiW of the granulated slag slurry in the dewatering tank is
It is expressed as the sum of the width of the granulated slag Iws and the weight of water iw. In other words, W = W w + W 5 Here, Ww = γw (v Ws/γs), so W = y w (V - W s / y s ) +
W s=7wV γwWs/y3+W3 Therefore, W5-7111W! IT / γs = W 7 W
VWs (l γw/γs)=w YwVWs=r
s (W γwV) / (γs γw), that is,
The weight I W s of the granulated slag is obtained.
この水砕スラグの重量Ｗｓによってよりきめの細かい冷
却水量の制御が可能となるので、水砕の品質向上を図る
ことができる。Since the weight Ws of the granulated slag enables finer control of the amount of cooling water, it is possible to improve the quality of the granulated slag.
〔実施例Ｊ
本発明を実施する脱水槽の断面の説明図を第１図に示す
、第１図では水砕スラグスラリー中の水砕スラグ３が沈
降している状態を示している。[Example J An explanatory diagram of a cross section of a dewatering tank in which the present invention is implemented is shown in FIG. 1. In FIG. 1, granulated slag 3 in granulated slag slurry is shown to be settling.
脱水槽内の水砕スラグスラリーの重量Ｗは脱水槽に設け
たロードセルｌによって計測することができる。この際
、予め脱水槽内に水を注入することによって、ロードセ
ルｌの校正が精度よ〈実施できるので、ロードセルｌに
よる計測は正確に行うことができる。また、水砕スラグ
スラリーの容積Ｖは脱水槽に設けた水位計２により正確
に計測可能である。The weight W of the granulated slag slurry in the dehydration tank can be measured by a load cell I provided in the dehydration tank. At this time, by injecting water into the dehydration tank in advance, the load cell I can be calibrated with high accuracy, so that the measurement by the load cell I can be performed accurately. Further, the volume V of the granulated slag slurry can be accurately measured by a water level gauge 2 provided in the dehydration tank.
水砕スラグの比重γｓは水中であるので真比重に近似し
ており、また、脱水槽内の水の比重γ。The specific gravity γs of the granulated slag approximates the true specific gravity since it is in water, and the specific gravity γs of the water in the dehydration tank.
はその温度を測定することにより容易に求めることがで
きる。can be easily determined by measuring its temperature.
水砕スラグの重量Ｗｓを経時的に計測すれば水砕スラグ
の生産量および生産速度（出滓速度ｔｏｎ／ｌｌｌ１ｎ
）も容易に得られる。If the weight Ws of granulated slag is measured over time, the production amount and production rate (slag output rate ton/lll1n
) can also be easily obtained.
水砕スラグの重量Ｗｓによって冷却水量を制御すること
ができる（冷却水系は図示していない）。The amount of cooling water can be controlled by the weight Ws of the granulated slag (the cooling water system is not shown).
［発明の効果］
高炉等の冶金炉を常に良好な状態に制御して操業するた
めには、出滓量を正確に上押管理することが最重点課題
である。しかしながら、極度に発達した日本の近代的製
鉄所においても出滓量を正確に上押管理する技術は確立
されておらず、出滓量のアンバランスによって高炉にト
ラブルが発生し、生産阻害をしばしば惹起しているのが
現状である。[Effects of the Invention] In order to constantly control and operate a metallurgical furnace such as a blast furnace in a good condition, the most important issue is to accurately control the amount of slag produced. However, even in Japan's highly developed modern steel mills, technology to accurately control the amount of slag has not been established, and an imbalance in the amount of slag causes trouble in the blast furnace, often disrupting production. What is causing this is the current situation.
上述のような現状において、本発明は次のような極めて
優れた効果を奏する。In the current situation as described above, the present invention has the following extremely excellent effects.
■水砕の品質の安定化を図ることができる。■It is possible to stabilize the quality of granulated water.
■冶金炉の出滓量管理および冶金炉の制御技術の大幅な
改善を図ることが可能となり、生産性の向上に寄与する
ことができる。■It is possible to significantly improve the control technology of metallurgical furnace slag volume management and metallurgical furnace control technology, which can contribute to improved productivity.
第１図は本発明を実施する脱水槽の断面の説明図である
。
■・−ロードセル
２−・−水位計
３・−・水砕スラグFIG. 1 is an explanatory diagram of a cross section of a dehydration tank in which the present invention is implemented. ■・-Load cell 2-・-Water level gauge 3・-・Granulated slag
Claims (1)
制御方法において、 前記脱水槽に該脱水槽内の水砕スラグスラリーの重量を
計測する重量計測器を設けると共に該水砕スラグスラリ
ーの容積を計測する容積計測器を設け、これらの計測値
に基づき、次式によりスラグ量を求め、該スラグ量に応
じて冷却水量を制御することを特徴とする水砕スラグ製
造時の冷却水量制御方法。 Ｗ＿ｓ＝γ＿ｓ（Ｗ−γ＿ｗＶ）／（γ＿ｓ−γ＿ｗ）
ただし、 Ｗ＿ｓ：水砕スラグの重量 Ｗ：脱水槽内の水砕スラグスラリーの重量 Ｖ：脱水槽内の水砕スラグスラリーの容積 γ＿ｓ：水砕スラグの比重 γ＿ｗ：脱水槽内の水の比重 である。[Claims] 1. A method for controlling the amount of cooling water during the production of granulated slag using a gravity dehydration tank, comprising: providing the dehydration tank with a weight measuring device for measuring the weight of the granulated slag slurry in the dehydration tank; A granulated slag characterized in that a volume measuring device for measuring the volume of the granulated slag slurry is provided, the amount of slag is determined by the following formula based on these measured values, and the amount of cooling water is controlled according to the amount of slag. Cooling water flow control method during manufacturing. W_s=γ_s(W-γ_wV)/(γ_s-γ_w)
However, W_s: Weight of granulated slag W: Weight of granulated slag slurry in the dehydration tank V: Volume of granulated slag slurry in the dehydration tank γ_s: Specific gravity of granulated slag γ_w: Specific gravity of water in the dehydration tank be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22635288A JPH0274543A (en) | 1988-09-12 | 1988-09-12 | Method for controlling amount of cooling water in granulated slag production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22635288A JPH0274543A (en) | 1988-09-12 | 1988-09-12 | Method for controlling amount of cooling water in granulated slag production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0274543A true JPH0274543A (en) | 1990-03-14 |
Family
ID=16843814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22635288A Pending JPH0274543A (en) | 1988-09-12 | 1988-09-12 | Method for controlling amount of cooling water in granulated slag production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0274543A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738190A (en) * | 2016-11-29 | 2017-05-31 | 重庆知德文化传播有限公司 | Cement products 3D printer |
-
1988
- 1988-09-12 JP JP22635288A patent/JPH0274543A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738190A (en) * | 2016-11-29 | 2017-05-31 | 重庆知德文化传播有限公司 | Cement products 3D printer |
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