CN107109502A - The bottom blowing connector of lifting construction - Google Patents
The bottom blowing connector of lifting construction Download PDFInfo
- Publication number
- CN107109502A CN107109502A CN201580001389.4A CN201580001389A CN107109502A CN 107109502 A CN107109502 A CN 107109502A CN 201580001389 A CN201580001389 A CN 201580001389A CN 107109502 A CN107109502 A CN 107109502A
- Authority
- CN
- China
- Prior art keywords
- bottom blowing
- gas
- plug body
- blowing connector
- pipe
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/48—Bottoms or tuyéres of converters
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/22—Arrangements of air or gas supply devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/161—Introducing a fluid jet or current into the charge through a porous element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/167—Introducing a fluid jet or current into the charge the fluid being a neutral gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
- F27D2027/002—Gas stirring
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
A kind of bottom blowing connector is provided, it can be easily mounted at the furnace bottom of converter etc..The some or all of gas supply pipe (2) for conveying from gas to plug body (1) are free bend pipe.
Description
Technical field
The present invention relates to a kind of fused solution connector is blown into gas.It is particularly used for into the point molten metal of converter etc.
The bottom blowing connector of gas is blown into, the bottom blowing connector is assembled on the bottom wall of converter etc..
Background technology
In the past, in converter, in order to promote to refine or stir molten steel etc., inserted by the bottom blowing for being embedded in converter bottom
Fill in be blown into gas.
The schematic configuration of converter bottom is as shown in Fig. 4 longitudinal section.10 be the iron sheet of furnace bottom part, and 20 are blown into for gas
Use air port.Permanent brick 9 is covered with the top of the iron sheet 10 of furnace bottom part, working brick 5 is laminated with the top of the permanent brick 9.And
And, as shown in figure 4, above-mentioned working brick 5 has the following two kinds situation, i.e., two layers of lining is formed by lower floor brick 5b, upper strata brick 5a
Situation, and using have a case that Dual-layer thickness degree soap brick and form one layer of lining.In figure, 6 be for shape
The integrated brick of strip into air port, 7 be shaft portion, and 8 be tapping hole (such as referenced patent document 1).
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 5-70819 publications
The content of the invention
The technical problems to be solved by the invention
Because the refractory brick of converter is exposed in high-temperature fusion liquid and can be corroded, it is therefore desirable to periodically lay again.In weight
During the refractory brick of new laying converter, from the assigned position of iron sheet along longitudinal direction and horizontal laying brick, or in some cases with
Coaxial brick is laid centered on assigned position.
Bottom blowing connector also according to refractory brick laying order and be assembled into be arranged at it is on iron sheet, for making bottom blowing connector
The position that passes through of gas supply pipe near.
Because mat formation refractory brick when the error that produces, it some times happens that the gas supply pipe of bottom blowing connector is not inserted into iron sheet
Bad phenomenon in gas supply pipe hole.Particularly in the case of using interpolation type bottom blowing connector, enter when to many connectors
During row construction, because the hole of the iron sheet in air port is smaller (referring to Fig. 4), the gas supply pipe that can produce bottom blowing connector is not inserted into iron
Bad phenomenon in the hole of skin.In this case, to carry out changing the operation of refractory brick, or carry out pruning the one of refractory brick
Part is with the operation for the position for adjusting bottom blowing connector.However, this operation requires a great deal of time, repairing for converter can be produced
The problems such as mending time lengthening.
The present invention makes in view of the above problems, it is therefore intended that provide a kind of bottom blowing connector, and it being capable of easily group
Mounted in the furnace bottom of converter etc..
Technical scheme for solving technical problem
The present invention is made that to solve technical problem, bottom blowing connector involved in the present invention is arranged on the stove of converter etc.
In the refractory body of bottom, and with the plug body for being used to spray gas and for the gas supply to the plug body supply gas
Pipe, it is characterised in that some or all of the gas supply pipe are free bend pipe.
Some or all due to gas supply pipe are free bend pipe, therefore, it is possible to easily supply gas
Pipe is inserted into the hole of the iron sheet for inserting gas supply pipe.As a result, bottom blowing connector easily can be assembled in into stove
Bottom.
In above-mentioned bottom blowing connector, the free bend pipe can be flexible hose and/or bellows.In addition, it is described from
Must have heat resistance, resistance to pressure and air-tightness by swan-neck.
In addition, the plug body can have fan-shaped cross sectional shape.Thus, be easy to centered on the stove heart and with around
The mode assembling bottom blowing connector of the stove heart.
In addition, the plug body can possess multiple through holes.Thus, liquid will not be melted for being blown into the hole of gas
Block.
Beneficial effect
Some or all due to gas supply pipe are free bend pipe, therefore, it is possible to easily supply gas
Pipe is inserted into the hole of the iron sheet for inserting gas supply pipe.
Brief description of the drawings
Fig. 1 is the longitudinal section of the bottom blowing connector involved by embodiments of the present invention.
Fig. 2 is the sectional elevation of the bottom blowing connector involved by embodiments of the present invention.
Fig. 3 is the phantom for the variant embodiment for showing free bend pipe.
Fig. 4 is the longitudinal section for the schematic configuration for showing converter bottom.
Embodiment
Below, reference picture 1, Fig. 2, to the bottom blowing connector being arranged in the furnace bottom refractory body of converter etc. involved in the present invention
An embodiment be specifically described.
As shown in figure 1, the bottom blowing connector of embodiment is made up of plug body 1 and free bend pipe 2, wherein, it is described to insert
Filling in body 1 has multiple through holes 11, and the free bend pipe 2 is installed in the bottom of plug body 1.
It is in the trapezoidal shape that upside is small and downside is big that plug body 1, which is formed as longitudinal section, and with opposite converter fused solution
Flat upper surface 13, lower surface 12 and outer peripheral face 14.As shown in Fig. 2 the outer peripheral face 14 of plug body 1 is by two planes
14a and curved surface 14b, 14c composition.Curved surface 14b is centered on the combustion chamber O of converter and radius is R0Circle circular arc, curved surface 14c
It is centered on O and radius is R1(>R0) circle circular arc.
Base portion 3 for forming gas compartment 31 is installed on the lower surface 12 of plug body 1.Under plug body 1
Portion is provided with gas compartment 31, and the lower openings of through hole 11 are in the gas compartment 31, and free bend pipe 2 is connected with gas compartment 31.
Preferably, the refractory body material of plug body 1 is high durable magnesium carbon materials matter.
As shown in Fig. 2 through hole 11 is formed as, shape of cross section is rounded, and through hole 11 is along plug body 1
Axle center is extended.Moreover, each through hole 11 is open in the upper surface 13 of plug body 1, and it is open in bottom surface 12, by
This, can be blown into gas to fused solution.In the plug body 1 of present embodiment, 90 through holes 11 are equally spaced configured 6
On individual concentric regular hexagon.
The bottom of cylindric base portion 3 is clogged by disk 4, so as to form gas compartment 31.At the center of disk 4, fixation is set
It is equipped with the installing port 41 with the arranged coaxial of plug body 1.The 5 metal rounding disk to be abutted with the lower surface 12 of plug body 1.
An end of free bend pipe 2 is connected on installing port 41.Metal free bend pipe 2 is by light-wall pipe 21
It is excellent in terms of heat resistance, resistance to pressure, air-tightness and the part 22 spirally wound in the periphery of pipe 21 is constituted.Spiral
The part 22 of shape winding plays following effect：Bent even if light-wall pipe 21 and be also held round section.
Free bend pipe 2 can also be flexible hose 2A as shown in Figure 3.Flexible hose 2A is sieved by using stainless steel
2A2 is netted to coat formed by stainless steel core pipe 2A1 periphery.2A3 is that stainless steel end connects device.Core pipe 2A1 is a kind of
Bellows, screen cloth 2A2 is stainless steel wire braid.
Compared with free bend pipe 2, flexible hose 2A is more excellent in terms of bendability, heat resistance, resistance to pressure, air-tightness
It is different.
Free bend pipe 2 can also be bellows.
In the bottom blowing connector of present embodiment, all free bend pipes of the flue 2 connected with gas compartment 31, but
It is or a part for flue 2 is free bend pipe.
In being blown into connector for embodiment, the gas supply pipe for the supply gas of through hole 11 to plug body 1
Possesses free bend pipe 2, therefore, it is possible to which gas supply pipe easily is inserted into the converter iron sheet for inserting gas supply pipe
Hole in.
In addition, being blown into connector in embodiment, the outer peripheral face 14 of plug body 1 has curved surface 14b and curved surface 14c,
Wherein, the curved surface 14b is centered on the combustion chamber O of converter and radius is R0Circle circular arc, the curved surface 14c be using O as
Center and radius are R1(>R0) circle circular arc, therefore, be easy to centered on the stove heart and the assembling bottom blowing in the way of around the stove heart
Connector.
Description of reference numerals
1：Plug body
2：Free bend pipe
2A：Flexible hose
Claims (2)
1. a kind of bottom blowing connector, is arranged in the furnace bottom refractory body of converter etc., and be used to spraying the plug body of gas with
And for the gas supply pipe to the plug body supply gas, it is characterised in that
The some or all of the gas supply pipe are free bend pipe.
2. bottom blowing connector according to claim 1, it is characterised in that
The free bend pipe is flexible hose and/or bellows.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/006284 WO2017103959A1 (en) | 2015-12-17 | 2015-12-17 | Bottom-blowing plug with improved workability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107109502A true CN107109502A (en) | 2017-08-29 |
Family
ID=59056488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580001389.4A Pending CN107109502A (en) | 2015-12-17 | 2015-12-17 | The bottom blowing connector of lifting construction |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3290532B1 (en) |
| JP (1) | JP6563034B2 (en) |
| CN (1) | CN107109502A (en) |
| WO (1) | WO2017103959A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6780115B2 (en) * | 2017-07-11 | 2020-11-04 | 東京窯業株式会社 | Furnace and bottom blowing plug |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5785940A (en) * | 1980-11-14 | 1982-05-28 | Sumitomo Metal Ind Ltd | Tuyere for refining molten metal |
| US4502670A (en) * | 1984-02-02 | 1985-03-05 | Allied Corporation | Gas hook-up to a ladle |
| CN2612676Y (en) * | 2003-04-17 | 2004-04-21 | 攀枝花新钢钒股份有限公司提钒炼钢厂 | Bottom gas supply device of combined blown converter |
| JP2007262471A (en) * | 2006-03-28 | 2007-10-11 | Tokyo Yogyo Co Ltd | Gas-blowing plug |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE567433A (en) * | ||||
| JPS60135512A (en) * | 1983-12-26 | 1985-07-18 | Nippon Steel Corp | Oxygen converter |
| JPH0639613B2 (en) * | 1989-06-22 | 1994-05-25 | 日本鋼管株式会社 | Bottom blowing tuyere |
| JPH0941024A (en) * | 1995-05-25 | 1997-02-10 | Japan Casting & Forging Corp | Gas blowing nozzle into molten metal and its using method thereof |
-
2015
- 2015-12-17 JP JP2017555874A patent/JP6563034B2/en active Active
- 2015-12-17 CN CN201580001389.4A patent/CN107109502A/en active Pending
- 2015-12-17 EP EP15910651.7A patent/EP3290532B1/en active Active
- 2015-12-17 WO PCT/JP2015/006284 patent/WO2017103959A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5785940A (en) * | 1980-11-14 | 1982-05-28 | Sumitomo Metal Ind Ltd | Tuyere for refining molten metal |
| US4502670A (en) * | 1984-02-02 | 1985-03-05 | Allied Corporation | Gas hook-up to a ladle |
| CN2612676Y (en) * | 2003-04-17 | 2004-04-21 | 攀枝花新钢钒股份有限公司提钒炼钢厂 | Bottom gas supply device of combined blown converter |
| JP2007262471A (en) * | 2006-03-28 | 2007-10-11 | Tokyo Yogyo Co Ltd | Gas-blowing plug |
Non-Patent Citations (1)
| Title |
|---|
| 胡宝玉 等: "《特种耐火材料实用技术手册》", 30 June 2004, 冶金工业出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6563034B2 (en) | 2019-09-04 |
| EP3290532B1 (en) | 2020-05-06 |
| WO2017103959A1 (en) | 2017-06-22 |
| EP3290532A1 (en) | 2018-03-07 |
| JPWO2017103959A1 (en) | 2018-09-20 |
| EP3290532A4 (en) | 2018-05-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |