JPS5834400Y2 - Molten slag processing equipment - Google Patents
Molten slag processing equipmentInfo
- Publication number
- JPS5834400Y2 JPS5834400Y2 JP1979040180U JP4018079U JPS5834400Y2 JP S5834400 Y2 JPS5834400 Y2 JP S5834400Y2 JP 1979040180 U JP1979040180 U JP 1979040180U JP 4018079 U JP4018079 U JP 4018079U JP S5834400 Y2 JPS5834400 Y2 JP S5834400Y2
- Authority
- JP
- Japan
- Prior art keywords
- slag
- blast furnace
- molten slag
- 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.)
- Expired
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Glanulating (AREA)
- Manufacture Of Iron (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
Description
【考案の詳細な説明】
本考案は溶融滓の処理装置に関するもので、具体的には
溶融滓の冷却固化と破砕とを同時に行うと共に、冷却固
化および破砕の過程で、溶融滓の顕熱を有効に回収する
ことを目的とした溶融滓の処理装置に関するものである
。[Detailed description of the invention] The present invention relates to a processing device for molten slag, and specifically, it simultaneously cools, solidifies, and crushes the molten slag, and removes the sensible heat of the molten slag in the process of cooling, solidifying, and crushing. The present invention relates to a processing device for molten slag for the purpose of effective recovery.
ここでいう溶融滓とは高炉、キューポラ等にて金属を溶
解する過程で生じる副産物、あるいは転炉、平炉、電気
炉等において金属の精錬過程で生じる副産物をいう。The slag herein refers to by-products produced in the process of melting metal in a blast furnace, cupola, etc., or by-products produced in the process of refining metal in a converter, open hearth, electric furnace, etc.
以下溶融滓として高炉（溶鉱炉ともいう。Hereinafter, the molten slag will be referred to as a blast furnace (also referred to as a blast furnace).
）から生じる高炉滓の例で説明する。) will be explained using the example of blast furnace slag produced from
従来、高炉滓の処理は高炉で生じた高炉滓を溶滓鍋等で
受けたのち、溶滓処理場に運ばれ処理場（冷却場）で１
然放冷あるいは散水冷却を行い冷却固化させる。Conventionally, blast furnace slag was processed by receiving the blast furnace slag produced in a blast furnace in a slag pot, etc., and then transporting it to a slag processing plant where it was heated at a processing plant (cooling plant).
Cool and solidify by cooling naturally or by spraying water.
その冷却固化した滓は、例えばブルドーザ−等で適宜環
り起こし、適当なサイズに破砕し、ふるい分けを行うよ
うな処理方法が一般的であった。A common treatment method for the cooled and solidified slag was to ring it up using a bulldozer, crush it into appropriate sizes, and sieve it.
しかし、上記のような処理方法では大量な高炉滓を処理
するためには広大な処理場を必要とし、かつ長い処理時
間が必要であるばかりではなく冷却固化した高炉滓は破
砕、ふるい分は等の後処理を容易にするためにブルドー
ザ−等にて適宜環り起す必要があり、そのための労働力
が必要である等の欠点があると共に高炉滓の顕熱は大気
中への放熱にまかされ極めて不経済であった。However, the above-mentioned treatment method not only requires a vast treatment plant and long processing time to process a large amount of blast furnace slag, but also requires the cooling and solidification of blast furnace slag to be crushed and sieved. In order to facilitate post-processing, it is necessary to use a bulldozer etc. to raise the blast furnace appropriately, which requires labor, and this has disadvantages, as well as the sensible heat of the blast furnace slag cannot be used for heat dissipation into the atmosphere. It was extremely uneconomical.
本考案は上記のような問題点や欠点を解消し、高炉滓の
冷却固化と破砕とを一気に行なうことにより、高炉滓の
処理場（冷却場）の縮少と処理時間の短縮とを可能にす
ると同時に、冷却固化および破砕の過程で、その高炉滓
の顕熱をも有効に回収することを特徴とする溶融滓の処
理装置である。This invention solves the above-mentioned problems and drawbacks, and by cooling, solidifying and crushing blast furnace slag all at once, it is possible to reduce the number of processing plants (cooling plants) and shorten processing time for blast furnace slag. At the same time, this molten slag processing apparatus is characterized in that it also effectively recovers the sensible heat of the blast furnace slag during the cooling, solidification, and crushing processes.
以下に本考案の装置の一実施例を図示の例により説明す
る。An embodiment of the apparatus of the present invention will be described below using illustrated examples.
第１図は装置の正面断面概略図であり、第２図は第１図
のＡ−Ａ断面を示す。FIG. 1 is a schematic front sectional view of the device, and FIG. 2 shows a cross section taken along the line AA in FIG.
１は横型円筒状の処理槽（以下単に処理槽という。1 is a horizontal cylindrical processing tank (hereinafter simply referred to as a processing tank).
）で該槽内の底面は溶融滓入側から出側に向かって下り
勾配となるように水平線に対してやや傾斜し、その傾斜
角度は２°〜１０°の範囲が望ましい。), the bottom surface of the tank is slightly inclined with respect to the horizontal line so that it slopes downward from the molten slag inlet side to the outlet side, and the angle of inclination is preferably in the range of 2° to 10°.
この傾斜角度が１０°を超えると供給された高炉滓が処
理槽１内をすばやく流動して、冷却固化および破砕が充
分に行なわれないうちに排出されてしまう。If this angle of inclination exceeds 10°, the supplied blast furnace slag will flow quickly within the treatment tank 1 and will be discharged before it is sufficiently cooled, solidified, and crushed.
−前傾斜角度が２°以下になると高炉滓の移動ができず
好ましくない。-If the forward inclination angle is less than 2 degrees, the blast furnace slag cannot be moved, which is not preferable.
２は処理槽１の筒部を構成する円型壁に内蔵された木管
、３は処理槽１の支持台、４は水冷構造の回転横架軸で
、処理槽１の同軸上に配設されている。Reference numeral 2 denotes a wood pipe built into the circular wall constituting the cylindrical portion of the treatment tank 1, 3 a support stand for the treatment tank 1, and 4 a rotating horizontal shaft with a water-cooled structure, which is disposed coaxially with the treatment tank 1. ing.
５は水冷構造の攪拌翼で回転横架軸４の適所に植設され
ており、回転横架軸４内の冷却水が容易に流入するよう
に一体的な構造で、固着されている。Reference numeral 5 denotes a stirring blade having a water-cooled structure, which is implanted at a suitable position on the horizontal rotating shaft 4, and is fixed in an integral structure so that the cooling water in the horizontal rotating shaft 4 can easily flow into the rotating horizontal shaft 4.
６は回転横架軸４の支持架台、７は回転横架軸４に固着
された歯車、８は攪拌翼５を回転させる駆動源で、例え
ば電動モーターが配設される。Reference numeral 6 denotes a support frame for the horizontal rotating shaft 4, 7 is a gear fixed to the horizontal rotating shaft 4, and 8 is a drive source for rotating the stirring blade 5, for example, an electric motor is provided.
９は駆動源８の出力を歯車７に伝達する伝達装置であり
、攪拌翼５の回転数が任意に設定できる。Reference numeral 9 denotes a transmission device that transmits the output of the drive source 8 to the gear 7, and the rotation speed of the stirring blade 5 can be set arbitrarily.
１０ ａは入側のロータリージヨイント、１０ｂは出側
のロータージヨイント、１１は処理槽１の入側に配設さ
れた溶滓樋、１２は処理槽１の出側の下部に配設された
滓（製品）の排出口である。10a is a rotary joint on the inlet side, 10b is a rotor joint on the outlet side, 11 is a slag gutter provided on the inlet side of the treatment tank 1, and 12 is provided at the lower part of the outlet side of the treatment tank 1. This is the outlet for slag (product).
一方、１３は冷却水の圧送ポンプ、１４は圧送ポンプ１
３とロータリージヨイント１０ ａとを接続する冷却水
管である。On the other hand, 13 is a cooling water pressure pump, 14 is a pressure pump 1
3 and the rotary joint 10a.
冷却水は圧送ポンプ１３により圧送され、冷却水管１４
からロータリージヨイント１０ ａを介して回転横架軸
４および攪拌翼５の中に導かれ、回転横架軸４および攪
拌翼５とを冷却保護すると同時に、高炉滓との熱交換を
行いながら、出側のロータリージヨイント１０ ｂに至
る。Cooling water is pumped by a pressure pump 13 and cooled water pipe 14
is guided from the rotary joint 10a into the rotating horizontal shaft 4 and stirring blade 5, cooling and protecting the rotating horizontal shaft 4 and stirring blade 5, and at the same time exchanging heat with the blast furnace slag, It reaches the rotary joint 10b on the exit side.
１５は水管２のヘッダーであると同時に処理槽１のテー
ル部を構成している。Reference numeral 15 constitutes a header of the water pipe 2 and at the same time constitutes a tail portion of the processing tank 1.
１６はロータリージョイン・）１０ｂとヘッダー１５と
に接続している木管、１７は処理槽１の入側ヘッド部の
水管２のヘッダーを示す。Reference numeral 16 indicates a wood pipe connected to the rotary joint 10b and the header 15, and 17 indicates a header of the water pipe 2 at the inlet head of the treatment tank 1.
１８は汽水上昇管、１９は汽水分離器、２０は処理槽１
のヘッド部の下部に配設された過熱器、また２１は噴霧
ノズルであり、汽水分離器１９で生じた加熱水の一部を
処理槽１内に噴霧して雰囲気ガスの調湿を行、う。18 is a brackish water riser pipe, 19 is a brackish water separator, 20 is a treatment tank 1
21 is a spray nozzle, which sprays a part of the heated water generated in the brackish water separator 19 into the processing tank 1 to control the humidity of the atmospheric gas; cormorant.
２２は噴霧ノズル２１に加熱水を導く導管、２３は処理
槽１の入側の上部に配設された排気口、２４は排ガス処
理装置、２５は供給された高炉滓で２５′は攪拌され冷
却固化および破砕されている滓（製品）を示す。22 is a conduit that leads heated water to the spray nozzle 21, 23 is an exhaust port provided at the upper part of the inlet side of the treatment tank 1, 24 is an exhaust gas treatment device, 25 is the supplied blast furnace slag, and 25' is stirred and cooled. Shows the slag (product) being solidified and crushed.
２６は冷却固化し破砕されたバラス状の滓（製品）、２
７は基礎面である。26 is a bulk-shaped slag (product) that has been cooled, solidified, and crushed;
7 is the basic surface.
本考案の一実施例は上記のように構成されており、いま
冷却水の圧送ポンプ１３を作動させ、冷却水を循環させ
ると共に、駆動源８を作動させて、攪拌翼５を回転させ
ながら、溶滓樋１１を介して高炉滓を処理槽１内に供給
する。One embodiment of the present invention is constructed as described above, and now the cooling water pressure pump 13 is operated to circulate the cooling water, and at the same time, the drive source 8 is operated and the stirring blade 5 is rotated. Blast furnace slag is supplied into the processing tank 1 via the slag gutter 11.
供給された高炉滓２５は攪拌翼５で攪拌されながら、出
側に移動する間に冷され、冷却固化すると共に破砕され
て滓（製品）となり排出口１２から排出される。The supplied blast furnace slag 25 is cooled while moving to the outlet side while being stirred by the stirring blades 5, cooled and solidified, and crushed to become slag (product) and discharged from the discharge port 12.
一方、圧送ポンプ１３から圧送された冷却水は冷却水管
１４からロータリージヨイント１０ ａを介して回転横
架軸４および攪拌翼５を冷却、保護しながら高炉滓２５
と熱交換して暖められながら他端のロータリージョイン
）１０ｂに至る。On the other hand, the cooling water pumped from the pressure pump 13 flows from the cooling water pipe 14 through the rotary joint 10a to the blast furnace slag 25 while cooling and protecting the rotating horizontal shaft 4 and the stirring blades 5.
It reaches the rotary join (10b) at the other end while being warmed by heat exchange with the other end.
この熱交換して暖められた冷却水はさらに冷却水管１６
からテール部のヘッダー１５に導かれ、水管２を通って
ヘッド部のヘッダー１７に至る。The cooling water heated by this heat exchange is further transferred to the cooling water pipe 16.
The water is guided from there to the header 15 at the tail section, passes through the water tube 2, and reaches the header 17 at the head section.
このあらかじめ暖められていた冷却水は上記の水管２を
通過する際に、処理槽１の下部の高炉滓２５および２５
′と接触している、水管２内を通過する冷却水は直接熱
伝導により高炉滓の顕熱と熱交換し冷却固化を促進させ
ると同時に冷却水自体のエンタルピーは上昇する。When this pre-warmed cooling water passes through the water pipe 2, it passes through the blast furnace slag 25 and 25 at the bottom of the treatment tank 1.
The cooling water passing through the water pipe 2 in contact with the blast furnace slag exchanges heat with the sensible heat of the blast furnace slag through direct heat conduction, promoting cooling and solidification, and at the same time, the enthalpy of the cooling water itself increases.
一方、処理槽１内の適所に配設された噴霧ノズル２１に
より、処理槽１内の雰囲気ガスの調湿が行なわれ、雰囲
気ガスの熱伝達率は大きくなる。On the other hand, the spray nozzle 21 disposed at an appropriate position within the processing tank 1 controls the humidity of the atmospheric gas within the processing tank 1, increasing the heat transfer coefficient of the atmospheric gas.
故にこの熱伝達率の改善が計られた雰囲気ガスと接触し
ている（高炉滓２５および２５′と直接、接触していな
い。Therefore, it is in contact with the atmospheric gas intended to improve the heat transfer coefficient (it is not in direct contact with the blast furnace slag 25 and 25').
）水管２内を通過する冷却水への熱伝達量が大きくなり
、高炉滓２５′の冷却固化速度は促進され、引いては溶
融滓の顕熱回収効率が高められることは容易に理解でき
よう。) It is easy to understand that the amount of heat transferred to the cooling water passing through the water pipe 2 increases, the cooling solidification rate of the blast furnace slag 25' is accelerated, and the sensible heat recovery efficiency of the molten slag is increased. .
上記のごとく高炉滓顕熱と熱交換してエンタルピーの上
昇した冷却水はヘッダー１７から汽水上昇管１８を介し
て汽水分離器１９に至り、水蒸気と加熱水とに分離され
る。As described above, the cooling water whose enthalpy has increased through heat exchange with the sensible heat of the blast furnace slag reaches the brackish water separator 19 from the header 17 via the brackish water riser pipe 18, where it is separated into steam and heated water.
分離された水蒸気は溶滓樋１１の落ち口附近に配設され
た過熱器２０内でさらに過熱され、過熱蒸気として回収
される。The separated water vapor is further superheated in a superheater 20 disposed near the outlet of the slag gutter 11, and recovered as superheated vapor.
一方、高炉滓の冷却固化の過程で発生する有害ガス、例
えば亜硫酸ガス（ＳＯ２）、硫化水素（Ｈ２Ｓ）ガス等
は、排気口２３から系外に導き出され、排ガス処理装置
２４で無害化され大気に放散させる。On the other hand, harmful gases generated during the cooling and solidification process of blast furnace slag, such as sulfur dioxide gas (SO2) and hydrogen sulfide (H2S) gas, are led out of the system through the exhaust port 23, and are rendered harmless by the exhaust gas treatment device 24 and released into the atmosphere. dissipate into.
本考案による装置は上記のような構成と作用を具有する
ものであるから、広大な処理場（冷却場）が不要になる
ばかりか破砕作業も不要となり、その労働力の省力化が
計られる。Since the device according to the present invention has the above-described structure and function, not only a vast processing plant (cooling plant) is not required, but also crushing work is not required, resulting in labor savings.
しかも溶融滓の顕熱をも有効に回収できるなどその実用
効果は極めて大である。Furthermore, the practical effects are extremely great, as the sensible heat of the molten slag can also be effectively recovered.
さらに本考案による装置によれば処理する溶融滓の性状
に応じて、処理槽１の大きさく径、長さ）、傾斜角度、
攪拌翼の取付角度および回転数、冷却水量等を適宜変更
させてやることにより溶融滓を一気に冷却固化し破砕す
ることと顕熱回収する目的は遠戚されると共に希望する
粒度構成のバラス状の滓（製品）が得られる。Furthermore, according to the apparatus according to the present invention, depending on the properties of the molten slag to be treated, the size (diameter, length), inclination angle,
By appropriately changing the installation angle and rotation speed of the stirring blade, the amount of cooling water, etc., the purpose of cooling and solidifying the molten slag at once and crushing it and recovering sensible heat is distantly related, and it is also possible to create a ball-like shape with the desired particle size structure. The slag (product) is obtained.
また、溶融滓に改質材を混入させて、滓（製品）の改質
を計る場合にも攪拌翼による強制攪拌効果により緻密で
均一な混合物が得られ、滓の改質効果を上げることがで
きる。Furthermore, when modifying the slag (product) by mixing a modifier into the molten slag, the forceful stirring effect of the stirring blades allows a dense and uniform mixture to be obtained, increasing the slag reforming effect. can.
尚、本考案の一実施例の図面では高炉滓の供給方法とし
て溶滓樋１１を介して行う例を示したが、例えば処理槽
１の上部に受皿のようなものにも出来るし、溶滓樋１１
を高炉あるいは転炉等の溶滓樋と直接結んで、これらか
ら排出される溶融滓を直接装置内に供給することも出来
る、また、高炉あるいは転炉から排出される溶融滓を一
度、溶滓鍋等に受けて、その溶滓鍋等から溶滓樋１１あ
るいは受皿を介して装置内に供給することも可能である
。In addition, in the drawings of one embodiment of the present invention, an example is shown in which blast furnace slag is supplied via the slag gutter 11, but it may also be possible to use a saucer-like structure in the upper part of the processing tank 1, for example. Gutter 11
It is also possible to directly connect the molten slag of a blast furnace or converter, etc., and supply the molten slag discharged from these directly into the equipment. It is also possible to receive the slag in a pot or the like and supply it into the apparatus from the slag pot or the like via the slag gutter 11 or a saucer.
また攪拌翼の形状も図示の例の形状にこだわることはな
く例えば螺旋形状をした攪拌翼でも可能である。Further, the shape of the stirring blade is not limited to the shape shown in the illustrated example, and a spiral-shaped stirring blade may also be used.
以上の如く本考案は溶融滓の処理に寄与することは極め
て大である。As described above, the present invention greatly contributes to the treatment of molten slag.
第１図は本考案の一実施例の正面断面概略図、第２図は
第１図のＡ−Ａ断面図である。
１・・・・・・横型円筒状の処理槽、２・・・・・・水
管、３・・・・・・処理槽の支持台、４・・・・・・回
転横架軸、５・・・・・・攪拌翼、６・・・・・・回転
横架軸の支持架台、７・・・・・・歯車、８・・・・・
・駆動源、９・・・・・・伝達装置、１０ ａ・・・・
・・入側のロータリージヨイント、１０ｂ・・・・・・
出側のロータリージヨイント、１１・・・・・・溶滓樋
、１２・・・・・・滓（製品）の排出口、１３・・・・
・・冷却水圧送ポンプ、１４・・・・・・冷却水管、１
５・・・・・・処理槽のテール部を構成するヘッダー、
１６・・・・・・冷却水管、１７・・・・・・処理槽の
ヘッド部を構成するヘッダー、１８・・・・・・汽水上
昇管、１９・・・・・・汽水分離器、２０・・・・・・
過熱器、２１・・・・・・噴霧ノズル、２２・・・・・
・水管、２３・・・・・・排水口、２４・・・・・・排
ガス処理装置、２５・・・・・・溶融滓、２５′・・・
・・・攪拌され冷却固化し、破砕されている溶融滓、２
６・・・・・・滓（製品）、２７・・・・・・基礎面。FIG. 1 is a schematic front cross-sectional view of an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1...Horizontal cylindrical treatment tank, 2...Water pipe, 3...Processing tank support stand, 4...Rotating horizontal rack shaft, 5... ... Stirring blade, 6 ... Support frame for rotating horizontal shaft, 7 ... Gear, 8 ...
- Drive source, 9...Transmission device, 10a...
・Entrance side rotary joint, 10b...
Outlet side rotary joint, 11... Slag gutter, 12... Slag (product) discharge port, 13...
...Cooling water pressure pump, 14...Cooling water pipe, 1
5...Header that constitutes the tail part of the processing tank;
16... Cooling water pipe, 17... Header constituting the head of the treatment tank, 18... Brackish water riser pipe, 19... Brackish water separator, 20・・・・・・
Superheater, 21...Spray nozzle, 22...
・Water pipe, 23... Drain port, 24... Exhaust gas treatment device, 25... Molten slag, 25'...
... Molten slag that has been stirred, cooled, solidified, and crushed, 2
6... Slag (product), 27... Foundation surface.
Claims (1)
を、槽内底面が溶融滓の入側から出側に向って２〜１０
°の下り勾配となるように設け、該処理槽１の円筒軸部
分に水冷構造の槽内回転攪拌用の攪拌翼５を植設せる回
転軸４を、上記水管２と冷却水路が連通ずるように配設
したことを特徴とする溶融滓の処理装置。Horizontal cylindrical treatment tank 1 consisting of a wall structure with built-in water pipes 2
The inner bottom of the tank is 2 to 10 mm from the molten slag inlet side to the outlet side.
A rotary shaft 4 is installed so that the water pipe 2 and the cooling channel communicate with each other. A molten slag processing device characterized by being disposed in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979040180U JPS5834400Y2 (en) | 1979-03-28 | 1979-03-28 | Molten slag processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979040180U JPS5834400Y2 (en) | 1979-03-28 | 1979-03-28 | Molten slag processing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55142542U JPS55142542U (en) | 1980-10-13 |
| JPS5834400Y2 true JPS5834400Y2 (en) | 1983-08-02 |
Family
ID=28908405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979040180U Expired JPS5834400Y2 (en) | 1979-03-28 | 1979-03-28 | Molten slag processing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834400Y2 (en) |
-
1979
- 1979-03-28 JP JP1979040180U patent/JPS5834400Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55142542U (en) | 1980-10-13 |
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