JPH0772095B2 - Molten slag continuous discharge water granulation equipment - Google Patents
Molten slag continuous discharge water granulation equipmentInfo
- Publication number
- JPH0772095B2 JPH0772095B2 JP59003513A JP351384A JPH0772095B2 JP H0772095 B2 JPH0772095 B2 JP H0772095B2 JP 59003513 A JP59003513 A JP 59003513A JP 351384 A JP351384 A JP 351384A JP H0772095 B2 JPH0772095 B2 JP H0772095B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- pit
- level
- water level
- slag
- 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 - Fee Related
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は溶融スラグを連続的に排出すると共に水砕化す
る装置に関するものである。Description: FIELD OF THE INVENTION The present invention relates to a device for continuously discharging molten slag and granulating it.
従来技術 従来の装置は第１図に示すごとく溶滓シユート部25に配
管30及び噴水ノズル33で水を注入し、その中に溶融した
スラグ等を落下させ、冷却粉砕し、水砕状とする。した
がつてこの落滓シユート25内の水位26がスラグの冷却能
力に大きな影響を与えることになる。この時に炉内と炉
外は落滓シユート25により隔離されており、炉内圧が高
い場合には、そのシールは、落滓シユート25内の水位26
と大気圧側の水位27との差28にて保たれることになる。
その場合に炉内圧が変動すると落滓シユート25内の水位
26が合わせて変動することとなり、ひいては溶融スラグ
の冷却に影響を及ぼすこととなる。ここで水位26を十分
確保し、且つ水封水位29を炉内圧の最高よりも多く確保
しようとすれば落滓シユートを大巾に下方に延長せねば
ならず、したがつてピツト32も深くする必要があり、そ
の結果炉体31を上方へ上げるか、またはピツト32全体を
大形化し下へ下げることが必要となる。2. Description of the Related Art In the conventional device, as shown in FIG. 1, water is injected into a molten slag shout portion 25 with a pipe 30 and a fountain nozzle 33, and molten slag or the like is dropped into the molten slag shatter portion 25, cooled and pulverized into a water granulated state. . Therefore, the water level 26 in the slag shout 25 has a great influence on the cooling capacity of the slag. At this time, the inside of the furnace and the outside of the furnace are separated by the slag shout 25, and if the pressure inside the furnace is high, the seal is the water level 26 in the slag shout 25.
Will be maintained at a difference of 28 from the water level 27 on the atmospheric pressure side.
In that case, if the reactor pressure fluctuates, the water level in the slag shout 25
26 also fluctuates, which in turn affects cooling of the molten slag. Here, if the water level 26 is sufficiently secured and the water sealing water level 29 is to be secured more than the maximum in-reactor pressure, the slag sewage must be greatly extended downwardly, so that the pit 32 is also deepened. Therefore, it is necessary to raise the furnace body 31 upward, or to enlarge the entire pit 32 and lower it.
また特開昭55-102815の第１図（本出願には図示せず）
におけるガス取出管（９）の様に炉内圧に対応してガス
の抜き出し量を調整する方法もある。しかしこの場合は
炉へ装入するものの性状が変わつた場合には、炉底部の
最適定常圧そのものが変わつてくることが考えられ、そ
の場合に炉底部の圧力を一定の状態に保つことは、炉内
の通気量が変動することにつながり、したがつて炉況の
不安定及び処理量の減少または吹抜けの誘発更に、炉内
圧の不安定化を招くこととなる。FIG. 1 of JP-A-55-102815 (not shown in the present application)
There is also a method of adjusting the amount of gas taken out in accordance with the pressure inside the furnace, as in the gas take-out pipe (9). However, in this case, when the properties of what is charged into the furnace change, the optimum steady pressure at the bottom of the furnace itself may change, and in that case, keeping the pressure at the bottom of the furnace constant This leads to fluctuations in the air flow rate in the furnace, thus leading to instability of the furnace condition and reduction of throughput or induction of blow-through, and further instability of the furnace pressure.
以上の如く従来の水砕化設備においては、 溶融スラグの冷却をするための水面レベルに変動があ
る為冷却効果が変動する。水位が下がることにより大
気側との水封が保たれなくなる。更に水位を確保しよう
とすればピツト等が大形となり大きなスペースを必要と
するという欠点がある。As described above, in the conventional water granulation equipment, the cooling effect varies because the water surface level for cooling the molten slag varies. As the water level drops, the water seal with the atmosphere side cannot be maintained. Further, if the water level is to be secured, the size of the pit will be large and a large space will be required.
発明の目的 本発明は前述の如き従来法の欠点に鑑み水位を一定に
保ち安定したスラグの冷却を行い、スラグ冷却ピツト
と水封部を分離させコンパクトな水封槽で水封を確実に
保つことにより安全性を確保するという目的の為のもの
である。OBJECT OF THE INVENTION In view of the drawbacks of the conventional method as described above, the present invention performs stable cooling of the slag while keeping the water level constant, and separates the slag cooling pit and the water sealing part to reliably keep the water sealing in a compact water sealing tank. This is for the purpose of ensuring safety.
発明の構成 本発明は前記の目的の為に水砕化を行うピツトと水封を
行い大気側との隔離を行うピツトとを分離して設置する
もので、まず水砕化を行うピツトとして第２図に示す如
く落滓シユート４の下に密閉されたピツト５を設け、ピ
ツト５の水位を保持したいレベルに開孔６を設ける。開
孔６は密閉された導管７にて外部に設けられた水封タン
ク８に連絡され、水封タンク８の中で下方に曲げられ該
導管７の端部を水封高さ分、水中に浸漬して設置され
る。水封タンク８の下部には水を循環使用する為配管17
が取り付けられ、途中ポンプ18,放熱器19を介してピツ
ト５に設けられた噴水ノズル14に連絡されている。According to the present invention, for the purpose described above, a pit for water granulation and a pit for water sealing and isolation from the atmosphere side are installed separately. As shown in FIG. 2, a closed pit 5 is provided under the slag shout 4, and an opening 6 is provided at a level where the water level of the pit 5 is desired to be maintained. The opening 6 is connected to a water-sealing tank 8 provided outside by a closed conduit 7, and is bent downward in the water-sealing tank 8 so that the end of the conduit 7 is submerged in the water by a water-sealing height. It is dipped and installed. Piping for circulating water in the lower part of the water seal tank 17
Is connected to the fountain nozzle 14 provided in the pit 5 via a pump 18 and a radiator 19 on the way.
水封タンク８にはレベル計９及び補給水弁16が設置さ
れ、これにより水位３が常時保たれている。またピツト
５には生成した水砕を排出するためのコンベア10（コン
ベア型式は問わない）が設けられ水砕を外部へ連続また
は間欠的に排出する。このコンベア10の排出側はピツト
５とは隔壁11で仕切られており、このコンベア10はピツ
ト５の水レベルから更に水位３以上のところまで密閉構
造のカバー15がついている。A level meter 9 and a make-up water valve 16 are installed in the water seal tank 8 so that the water level 3 is always maintained. The pit 5 is provided with a conveyor 10 (regardless of conveyor type) for discharging the generated water granulation, and discharges the water granulation to the outside continuously or intermittently. The discharge side of the conveyor 10 is partitioned from the pit 5 by a partition wall 11, and the conveyor 10 is provided with a cover 15 having a closed structure from the water level of the pit 5 to a water level of 3 or more.
発明の作用 本発明は上述した様な設備の構成によりピツト５に注水
された水は、通常はピツト５内の水位が一定に保たれた
状態で開口６からピツト５外に導かれ、導管７にて水封
タンク８に大気とは遮閉されたまま運ばれ水封タンク８
内に落下する。この時水封タンク８内には水位３のレベ
ルまで水が充満されており配管７の下降管内の水位と水
封タンク８内の水位３との差により炉内と大気とはシー
ルされた状態となる。この水封高さの最大は導管７の下
降管の下端部から水封タンクの水面レベルとの差水位３
迄とれる。これを炉内圧の最大値以上としておけば、水
封が破れて炉内と大気が通じることはない。この水封タ
ンク８にはレベル計９及び補給水弁16,補給水配管21が
接続され常時水位が制御されており水封タンク８内の水
位を常に水位３のレベルに維持している。更に水封タン
ク８の下部からはポンプ18,放熱器19を介して配管17が
ノズル14に接続され、導管７にて入つてきた水を再びピ
ツト５に噴出しており、これにより水封タンク内に微細
なスラグ等が堆積することを防止している。一方排出側
は、ピツト５内の水位が開孔６のレベルで保持された状
態で炉内圧に対応した水封高さを保つため隔壁11にて隔
てられた反ピツト５側の水位が上がりカバー15内に浸入
し、開孔６のレベルとの水位差が炉内圧と同一になつた
ところで停止する。ノズル14からは水砕水が噴出され、
落下してきた溶融スラグは噴流により粉砕，冷却され粒
状の水砕スラグとなる。Effect of the Invention In the present invention, the water poured into the pit 5 by the structure of the equipment as described above is normally guided from the opening 6 to the outside of the pit 5 while the water level in the pit 5 is kept constant, and the conduit 7 The water-sealed tank 8 is transported to the water-sealed tank 8 while being shielded from the atmosphere.
Fall inside. At this time, the water sealing tank 8 is filled with water up to the level of the water level 3, and the difference between the water level in the descending pipe of the pipe 7 and the water level 3 in the water sealing tank 8 seals the inside of the reactor and the atmosphere. Becomes The maximum height of this water seal is the difference in water level 3 from the lower end of the downcomer of the conduit 7 to the water level of the water seal tank.
Can be taken If this is set above the maximum value of the furnace pressure, the water seal will not be broken and the furnace will not communicate with the atmosphere. A level meter 9, a make-up water valve 16 and a make-up water pipe 21 are connected to the water-sealing tank 8 to constantly control the water level so that the water level in the water-sealing tank 8 is constantly maintained at the level of the water level 3. Further, a pipe 17 is connected to a nozzle 14 from a lower portion of the water seal tank 8 via a pump 18 and a radiator 19, and the water entering through the conduit 7 is jetted again to the pit 5, whereby the water seal tank 8 is provided. It prevents the accumulation of fine slag and the like. On the other hand, on the discharge side, the water level on the side opposite to the pit 5 separated by the partition wall 11 rises in order to maintain the water sealing height corresponding to the reactor internal pressure while the water level in the pit 5 is maintained at the level of the opening 6. It enters into 15 and stops when the water level difference from the level of the opening 6 becomes the same as the pressure inside the furnace. Granulated water is ejected from the nozzle 14,
The molten slag that has fallen is pulverized and cooled by the jet stream to form granular water granulated slag.
発明の効果 本発明は上述した様に、水砕化を行うピツト５と水封を
行なう水封タンク８とを分離したことにより、ピツト５
内の水位は一定に保たれ、したがつてこのことによりた
とえ炉内圧の変動があつたとしても溶融スラグの冷却に
必要な水位１が保たれ、また、ノズル14からの噴出水の
噴流状態も水位が保たれる結果スラグの粉砕に最適な状
態が保持出来る。また水封が破れることもなくしたがつ
て安全上からも信頼出来るものとなる。As described above, the present invention separates the pit 5 for water granulation and the water-sealing tank 8 for water-sealing.
The water level inside is kept constant, so that even if there is a change in the furnace pressure, the water level 1 required for cooling the molten slag is maintained, and the jet flow state from the nozzle 14 is also maintained. As a result of maintaining the water level, the optimum state for slag crushing can be maintained. Also, the water seal did not break, and it became reliable from the viewpoint of safety.
水封水位３を大きくとりたい場合は、ピツト５の大きさ
には関係なしに水封タンク８内水面レベルの上方への変
更及びコンベアの密閉カバー15の延長で可能であり炉底
レベルの変更や、ピツト５の形状大形化等は必要でな
い。When it is desired to increase the water sealing water level 3, regardless of the size of the pit 5, it is possible to change the water level in the water sealing tank 8 to the upper side and extend the sealing cover 15 of the conveyor, and change the furnace bottom level. Also, it is not necessary to increase the size of the pit 5.
第１図は従来の溶融スラグ連続排出水砕化装置の説明
図、第２図は本発明の溶融スラグ連続排出水砕化装置の
説明図である。 1,26……冷却水位 2,28……水封水位 3,29……最大水封水位 4,25……落滓シユート 5,32……ピツト ６……排水用開孔 ７……導管 ８……水封タンク ９……レベル計 10……コンベア 11……隔壁 14,33……噴水ノズル 15……密閉カバー 16……補給水弁 17,30……循環水配管 18……ポンプ 19……放熱器 21……補給水配管 22……炉底 23……樋 24……密閉蓋 27……ピツト水位 31……炉体FIG. 1 is an explanatory view of a conventional molten slag continuous discharge water granulation device, and FIG. 2 is an explanatory view of a molten slag continuous discharge water granulation device of the present invention. 1,26 …… Cooling water level 2,28 …… Water sealing water level 3,29 …… Maximum water sealing water level 4,25 …… Slag sewage 5,32 …… Pit 6 …… Drainage opening 7 …… Conduit 8 …… Water seal tank 9 …… Level meter 10 …… Conveyor 11 …… Partition wall 14, 33 …… Fountain nozzle 15 …… Sealing cover 16 …… Make-up water valve 17, 30 …… Circulating water piping 18 …… Pump 19… … Radiator 21 …… Make-up water piping 22 …… Furnace bottom 23 …… Gutter 24 …… Sealing lid 27 …… Pitting water level 31 …… Furnace body
フロントページの続き (72)発明者 朝長 隆 福岡県北九州市戸畑区大字中原46―59 新 日本製鐵株式会社戸畑プラント製作所内 (56)参考文献 特公 昭46−17823（ＪＰ，Ｂ１) 特公 昭50−15735（ＪＰ，Ｂ１) 特公 昭54−30079（ＪＰ，Ｂ２)Front page continuation (72) Inventor Takashi Tomonaga 46-59, Nakahara, Tobata-ku, Kitakyushu, Fukuoka Prefecture Nippon Steel Co., Ltd. Tobata Plant Mfg. Co., Ltd. (56) References Japanese Patent Publication No. 46-17823 (JP, B1) JP-B-50-15735 (JP, B1) JP-B-54-30079 (JP, B2)
Claims (1)
態に水砕化用ピットを一体的に連接せしめると共に、該
ピットの側壁部の且つ、水位を保持したいレベルに開孔
部を形成し、該開孔部と別に設置された補給水配管を設
けた水封タンクとを導管でもって連接し、該導管の水封
タンク側の端部を水封高さ分、水中に浸漬して設け、一
方ピットの側壁部に設けられた水砕用ノズルと水封タン
クの下部とをポンプを介して配管にて連結したことを特
徴とする溶融スラグ連続排出水砕化装置。1. A water granulation pit is integrally connected in a sealed state to a furnace bottom opening through a slag chute, and the opening is formed at the side wall of the pit and at a level at which the water level is desired to be maintained. The opening portion and a water sealing tank provided with makeup water piping separately installed are connected by a conduit, and the end portion of the conduit on the water sealing tank side is immersed in water for the height of the water sealing. The water slag continuous discharge water smashing device is characterized in that the water smashing nozzle provided on the side wall of the pit and the lower part of the water sealing tank are connected by a pipe via a pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59003513A JPH0772095B2 (en) | 1984-01-13 | 1984-01-13 | Molten slag continuous discharge water granulation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59003513A JPH0772095B2 (en) | 1984-01-13 | 1984-01-13 | Molten slag continuous discharge water granulation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60151261A JPS60151261A (en) | 1985-08-09 |
| JPH0772095B2 true JPH0772095B2 (en) | 1995-08-02 |
Family
ID=11559438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59003513A Expired - Fee Related JPH0772095B2 (en) | 1984-01-13 | 1984-01-13 | Molten slag continuous discharge water granulation equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0772095B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3870132B2 (en) * | 2002-07-23 | 2007-01-17 | 新日鉄エンジニアリング株式会社 | Slag granulation equipment for waste melting treatment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622625B2 (en) * | 1973-06-15 | 1981-05-26 | ||
| JPS5816461B2 (en) * | 1977-08-10 | 1983-03-31 | 東芝テック株式会社 | weight measuring device |
-
1984
- 1984-01-13 JP JP59003513A patent/JPH0772095B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60151261A (en) | 1985-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |