JPS6140742Y2 - - Google Patents
Info
- Publication number
- JPS6140742Y2 JPS6140742Y2 JP13064882U JP13064882U JPS6140742Y2 JP S6140742 Y2 JPS6140742 Y2 JP S6140742Y2 JP 13064882 U JP13064882 U JP 13064882U JP 13064882 U JP13064882 U JP 13064882U JP S6140742 Y2 JPS6140742 Y2 JP S6140742Y2
- Authority
- JP
- Japan
- Prior art keywords
- gutter
- slag
- air
- molten slag
- tip
- 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
- 239000002893 slag Substances 0.000 claims description 40
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005422 blasting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
-
- 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
Description
【考案の詳細な説明】
この考案は、主として転炉溶融スラグを細粒化
し、所定硬度をもつ風砕スラグを製造するための
風砕スラグ製造設備における風砕スラグ製造用樋
装置に関するものである。[Detailed description of the invention] This invention mainly relates to a gutter device for producing air-crushed slag in an air-crushed slag production facility for producing air-crushed slag having a predetermined hardness by refining converter molten slag. .
第１図は、風砕スラグ製造設備の全体を示す概
略説明図である。図面において、１は溶融スラグ
が収容されたタンデイツシユ、２はタンデイツシ
ユ１に設けられた溶融スラグが流出する樋、３は
樋２の下部に、その先端開口が樋２の排出口直下
に位置する、樋２との間に所定角度で上向きに配
置されたメインノズル、４は樋２の上部に、その
先端開口が樋２の排出口直上に位置する上部ノズ
ルである。メインノズル３および上部ノズル４
は、配管によりダンパ５，５を介して送風機６に
接続されている。 Fig. 1 is a schematic diagram showing the entire air-smashed slag manufacturing equipment. In the drawing, 1 is a tundish that contains molten slag, 2 is a trough provided in the tundish 1 from which the molten slag flows out, 3 is a main nozzle located at the bottom of the trough 2, with its tip opening located directly below the outlet of the trough 2 and facing upward at a certain angle between the trough 2 and the trough, and 4 is an upper nozzle located at the top of the trough 2, with its tip opening located directly above the outlet of the trough 2.
is connected to a blower 6 via dampers 5, 5 by piping.
７は、その前部開口面７ａに前記樋２、メイン
ノズル３および上部ノズル４の先端が臨んで位置
されている風砕室で、その底部は複数のホツパ状
部８からなつており、各ホツパ状部８の下端開口
には、風砕スラグの定量排出装置９が設けられて
いる。 Reference numeral 7 denotes a crushing chamber in which the tips of the gutter 2, main nozzle 3, and upper nozzle 4 are located facing the front opening surface 7a. A pulverized slag quantitative discharge device 9 is provided at the lower end opening of the hopper-shaped portion 8 .
風砕室７は、その頂壁７ｂ、側壁７ｃ、後壁７
ｄ及びホツパ状部８の内面が多数のボイラチユー
ブによつて構成されており、これらボイラチユー
ブは図示されていない気水ドラムに接続されてい
て、風砕室７全体がボイラ室となつている。 The blasting chamber 7 has a top wall 7b, a side wall 7c, and a rear wall 7.
d and the inner surface of the hopper-shaped portion 8 are constituted by a large number of boiler tubes, and these boiler tubes are connected to an air-water drum (not shown), so that the entire blasting chamber 7 serves as a boiler room. .
１０は風砕室７の頂壁端部に設けられた排気
口、１１は排気口１０に接続された排気筒、１２
は風砕スラグ搬送用のコンベアである。 Reference numeral 10 denotes an exhaust port provided at the top wall end of the air crushing chamber 7, reference numeral 11 denotes an exhaust pipe connected to the exhaust port 10, and reference numeral 12 denotes an exhaust pipe connected to the exhaust port 10.
is a conveyor for transporting air-granulated slag.
タンデイツシユ１内に収容されている溶融スラ
グは、その樋２から流出するとともに、送風機６
によりメインノズル３および上部ノズル４から一
定の風速と風量で噴出する高速空気流によつて吹
き飛ばされ、風砕室７内を飛翔する。このように
して風砕室７内に吹き飛ばされた溶融スラグは、
風砕室７内を飛翔中に表面張力で球状化されると
ともに表面から冷却されて固化が進み、落下点で
は細粒状の風砕スラグ１３となつてホツパ状部８
に集められ、定量排出装置９から所定量が切出さ
れてコンベア１２により搬送される。 The molten slag contained in the tundish 1 flows out from the gutter 2, and is also sent to the blower 6.
The particles are blown away by high-speed airflows ejected from the main nozzle 3 and the upper nozzle 4 at a constant speed and volume, and fly within the crushing chamber 7. The molten slag blown into the crushing chamber 7 in this way is
While flying in the air crushing chamber 7, it becomes spheroidized due to surface tension and is cooled from the surface to solidify, and at the point where it falls, it becomes fine crushed air slag 13 and becomes a hopper shaped part 8.
A predetermined amount is cut out from the quantitative discharge device 9 and conveyed by the conveyor 12.
第２図は溶融スラグが流出する樋２と、風砕用
の空気が噴出する下部ノズル３からなる溶融スラ
グ風砕装置の拡大側面図で、樋２は下方に向つて
傾斜し、そして下部ノズル３は樋２の先端に向け
て上方に傾斜して配置されており、樋２から流出
する溶融スラグは下部ノズル３から噴出する空気
によつて、風砕室内に吹き飛ばされる。 Fig. 2 is an enlarged side view of a molten slag blowing device consisting of a gutter 2 through which molten slag flows out and a lower nozzle 3 from which air for air crushing is ejected. 3 is arranged to be inclined upward toward the tip of the gutter 2, and the molten slag flowing out from the gutter 2 is blown into the crushing chamber by the air jetted from the lower nozzle 3.
しかるに、風砕室内に吹き飛ばされた溶融スラ
グは、必ずしも全部が細粒状の風砕スラグとはな
らず、半溶融状態のボタ落ちスラグとなるものが
多量に発生していた。 However, the molten slag blown into the blasting chamber does not necessarily all become fine-grained blasted slag, and a large amount of semi-molten slag is generated.
本考案者等は、上述したボタ落ちスラグの発生
を防止すべく研究を重ねた結果、このようなボタ
落ちスラグが発生する原因は、樋から流出する溶
融スラグと下部ノズルから噴出する空気との接触
角度にあり、従来の接触角度α１が約50゜のた
め、溶融スラグの飛翔に十分な初速が与えられて
いないのが原因であることを知見した。 The inventors of the present invention have conducted repeated research to prevent the above-mentioned slag from occurring, and have found that the cause of slag from falling off is the combination of molten slag flowing out from the gutter and air blowing out from the lower nozzle. It was found that the cause was the contact angle, and the conventional contact angle α1 was approximately 50°, which did not provide sufficient initial velocity for the flight of the molten slag.
この考案は、上記知見に基づいてなされたもの
であつて、溶融スラグ流出樋の先端部を水平状と
なし、前記樋から流出する溶融スラグと、前記ノ
ズルから噴出する空気との接触角度を小となした
ことに特徴を有するものである。 This invention was made based on the above knowledge, and the tip of the molten slag outflow gutter is made horizontal to reduce the contact angle between the molten slag flowing out from the gutter and the air ejected from the nozzle. It is characterized by the following.
次に、この考案を実施例により図面と共に説明
する。 Next, this invention will be explained with reference to examples and drawings.
第３図には、この考案の風砕スラグ製造用樋装
置が概略側面図により示されている。図面におい
て、１４は溶融スラグ流出樋で、樋１４の先端部
１４ａはほぼ水平状に形成されている。この結
果、樋１４から流出する溶融スラグと下部ノズル
３から噴出する空気との接触度α２は、従来より
小で例えば約30゜となる。 FIG. 3 shows a schematic side view of the gutter device for producing air-crushed slag of this invention. In the drawing, 14 is a molten slag outflow gutter, and the tip 14a of the gutter 14 is formed in a substantially horizontal shape. As a result, the degree of contact α2 between the molten slag flowing out from the gutter 14 and the air jetting out from the lower nozzle 3 is smaller than that of the conventional case, for example, about 30°.
従つて、樋１４の水平状先端部１４ａから矢印
ａの如く流出する溶融スラグは、下部ノズル３の
噴出口３ａから矢印ｂの如く噴出する空気によつ
て、飛翔に十分な初速が与えられ、かつ噴出空気
との接触がスムーズになり、この噴出空気流に乗
つて風砕室内を飛翔する。 Therefore, the molten slag flowing out from the horizontal tip 14a of the gutter 14 as shown by the arrow a is given a sufficient initial velocity for flight by the air ejected from the jet port 3a of the lower nozzle 3 as shown by the arrow b. Moreover, the contact with the ejected air becomes smooth, and the material flies inside the crushing chamber riding on this ejected air flow.
その結果、樋１４から流出する溶融スラグは、
その全量が細粒状の風砕スラグとなり、半溶融状
態のボタ落ちスラグの発生は殆んど無くなつた。 As a result, the molten slag flowing out from the gutter 14 is
The entire amount became fine-grained air-crushed slag, and the generation of semi-molten flecked slag almost disappeared.
以上述べたように、この考案によれば、風砕ス
ラグの製造に当り、ボタ落ちスラグの発生を無く
して、品質の優れた風砕スラグを安定して歩留り
高く製造できる等、工業上優れた効果がもたらさ
れる。 As described above, this invention has industrial advantages such as eliminating the generation of fluffy slag during the production of air-crushed slag, and making it possible to stably produce high-quality air-ground slag at a high yield. effect is brought about.
第１図は風砕スラグ製造設備の全体を示す概略
説明図、第２図は従来の樋装置を示す側面図、第
３図はこの考案の樋装置を示す側面図である。図
面において、
１……タンデイツシユ、２……樋、３……下部
ノズル、４……上部ノズル、５……ダンパ、６…
…送風機、７……風砕室、７ａ……前部開口面、
７ｂ……頂壁、７ｃ……側壁、７ｄ……後壁、８
……ホツパ状部、９……定量排出装置、１０……
排気口、１１……排気筒、１２……コンベア、１
３……風砕スラグ、１４……溶融スラグ流出樋、
１４ａ……樋先端部。
FIG. 1 is a schematic explanatory diagram showing the whole of the air-pulverized slag manufacturing equipment, FIG. 2 is a side view showing a conventional gutter device, and FIG. 3 is a side view showing the gutter device of this invention. In the drawings, 1... Tundishyu, 2... Gutter, 3... Lower nozzle, 4... Upper nozzle, 5... Damper, 6...
...Blower, 7...Blow crushing chamber, 7a...Front opening surface,
7b...Top wall, 7c...Side wall, 7d...Rear wall, 8
...Hopper-shaped part, 9...Quantitative discharge device, 10...
Exhaust port, 11... Exhaust pipe, 12... Conveyor, 1
3... Air crushed slag, 14... Molten slag outflow gutter,
14a...Gutter tip.
Claims (1)
記樋の先端部下方にその噴出口が臨む上方に向け
て傾斜した風砕用の空気噴出ノズルとからなる風
砕スラグ製造用樋装置において、 前記樋の先端部を水平状となし、前記樋から流
出する溶融スラグと、前記ノズルから噴出する空
気との接触角度を小にしたことを特徴とする風砕
スラグ製造用樋装置。[Claims for Utility Model Registration] A wind crusher consisting of a downwardly inclined molten slag outflow gutter and an upwardly sloped air blowing nozzle for wind crushing, the spout of which is located below the tip of the gutter. A gutter device for slag manufacturing, characterized in that the tip of the gutter is horizontal, so that the contact angle between the molten slag flowing out from the gutter and the air ejected from the nozzle is small. Gutter equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982130648U JPS5937332U (en) | 1982-08-31 | 1982-08-31 | Gutter equipment for air crushed slag production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982130648U JPS5937332U (en) | 1982-08-31 | 1982-08-31 | Gutter equipment for air crushed slag production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5937332U JPS5937332U (en) | 1984-03-09 |
| JPS6140742Y2 true JPS6140742Y2 (en) | 1986-11-20 |
Family
ID=30295631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982130648U Granted JPS5937332U (en) | 1982-08-31 | 1982-08-31 | Gutter equipment for air crushed slag production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937332U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58159499U (en) * | 1982-04-21 | 1983-10-24 | 新日本製鐵株式会社 | Slag diversion flow down trough |
-
1982
- 1982-08-31 JP JP1982130648U patent/JPS5937332U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5937332U (en) | 1984-03-09 |
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