CN108165760A - The method that molten bath side-blown converter blocks up air port - Google Patents
The method that molten bath side-blown converter blocks up air port Download PDFInfo
- Publication number
- CN108165760A CN108165760A CN201711290160.4A CN201711290160A CN108165760A CN 108165760 A CN108165760 A CN 108165760A CN 201711290160 A CN201711290160 A CN 201711290160A CN 108165760 A CN108165760 A CN 108165760A
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- Prior art keywords
- drill rod
- air port
- steel plate
- blown converter
- welded
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses the methods that molten bath side-blown converter blocks up air port, include the following steps：(1) one end of drill rod is polished into round shape, the other end is welded with triangle at the 400mm of end and moves back steel plate, the doughnut-shaped steel plate for wearing the drill rod is welded on the drill rod moved back apart from triangle at steel plate 450mm, reinforcing rib is welded between the steel plate and the drill rod, obtains air port drill rod；(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, then air port drill rod is thrown into 20~50mm by non-resistance and obstacle when drill rod is entered every 20~30min with sledgehammer, the molten slag in air port drill rod and side-blown converter is made to keep contact；(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port.The present invention can accelerate open tuyere velocity, while reduce the labor intensity for the mouth that blows in, and have large market promotional value.
Description
【Technical field】
The invention belongs to lead to smelt production field, the method that more particularly to molten bath side-blown converter blocks up air port.
【Background technology】
For present molten bath side-blown converter in heating blowing-out, what stifled air port used is all special blocked shot tool, directly disclosed with blocked shot into
Air port is gone to block, blocked shot head and air port just block it is stifled it is steady, in-furnace slag is not allowed to outflow, but the slag of blocked shot head contact
It can slowly cooling crust.When blowing in mouthful, pulling out after blocked shot goes out, it is necessary to after the clinker that air port is crusted is got through, could rouse it is oxygen-enriched enter
It is normally produced in stove.If the heating blowing-out time is long, the clinker of air port cooling crust is blocked up, can very getting through clinker crust
It is difficult.
Therefore, it studies a kind of quickening and opens tuyere velocity, while the molten bath side-blown converter for reducing the labor intensity for the mouth that blows in blocks up wind
The method of mouth has great practical application meaning.
【Invention content】
Difficult point for the above-mentioned prior art now studies a kind of method that molten bath side-blown converter blocks up air port, is exactly in stifled air port
When, squeeze into air port with special air port drill rod, every 20~30min, air port drill rod thrown into a little in stove, keep clinker and
Air port drill rod contact site does not generate serious crust；When blowing in next time mouthful, beaten after directly air port drill rod is exited, then firmly in stove
Enter, brisk convenience.The present invention can accelerate open tuyere velocity, while reduce the labor intensity for the mouth that blows in, and have vast city
Field promotional value.
To solve the above problems, the technical solution adopted in the present invention is：The method that molten bath side-blown converter blocks up air port, including with
Lower step：
(1) hexagonal steel of opposite side distance 25mm is cut into the drill rod of length 2m, one end of drill rod is polished into round shape, the other end
Thickness is welded at the 400mm of end and moves back steel plate for the triangle that 120mm, two right-angle sides are respectively 100mm, 70mm, away from
It is moved back from triangle and the doughnut-shaped steel plate for wearing the drill rod, the steel plate and the drill rod is welded on the drill rod at steel plate 450mm
Between be welded with reinforcing rib, obtain air port drill rod；
(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, non-resistance and barrier when drill rod is entered
Hinder, air port drill rod is then thrown into 20~50mm with sledgehammer every 20~30min, makes the melting furnace in air port drill rod and side-blown converter
Slag keeps contact；
(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port,
Air port drill rod is made to get through air port.
In the present invention, as further explanation, step (1) described doughnut-shaped steel plate is prepared by following methods：Using thickness as
The steel plate of 12mm is raw material, is prepared into the circular steel plate of a diameter of 150mm, then opens up endoporus in the circle of circular steel plate, make
The drill rod just wears the endoporus.
The invention has the advantages that：
1. the air port drill rod prepared by the present invention efficiently can beat air port by bucket, the obstacle inside air port is removed.Air port drill rod
In triangle move back steel plate can convenient barrel beat obstruction in air port, remove obstacle；And the structure design of doughnut-shaped steel plate can
The slag in air port is prevented to sputter to come.
2. the present invention can accelerate open tuyere velocity, while reduce the labor intensity for the mouth that blows in, pushed away with large market
Wide value.
3. of the invention just thrown into due to air port drill rod every 20~30min in stove, it ensure that and air port drill rod contacts
Clinker will not seriously crust, make air port easily open-minded.
【Description of the drawings】
Fig. 1 is the structure diagram of air port of embodiment of the present invention drill rod；
Fig. 2 is the structure diagram of doughnut-shaped steel plate of the embodiment of the present invention.
Main element symbol description：1st, drill rod；2nd, triangle moves back steel plate；3rd, reinforcing rib；4th, doughnut-shaped steel plate.
【Specific embodiment】
Embodiment 1：
The method that molten bath side-blown converter blocks up air port, includes the following steps：
(1) hexagonal steel of opposite side distance 25mm is cut into the drill rod of length 2m, one end of drill rod is polished into round shape, the other end
Thickness is welded at the 400mm of end and moves back steel plate for the triangle that 120mm, two right-angle sides are respectively 100mm, 70mm, away from
It is moved back from triangle and the doughnut-shaped steel plate for wearing the drill rod, the steel plate and the drill rod is welded on the drill rod at steel plate 450mm
Between be welded with reinforcing rib, obtain air port drill rod；The doughnut-shaped steel plate is prepared by following methods：Steel plate using thickness as 12mm is
Raw material is prepared into the circular steel plate of a diameter of 150mm, then opens up endoporus in the circle of circular steel plate, makes the drill rod just
Wear the endoporus；
(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, non-resistance and barrier when drill rod is entered
Hinder, air port drill rod is then thrown into 20mm with sledgehammer every 20min, the molten slag in air port drill rod and side-blown converter is made to keep connecing
It touches；
(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port,
Air port drill rod is made to get through air port.
Embodiment 2：
The method that molten bath side-blown converter blocks up air port, includes the following steps：
(1) hexagonal steel of opposite side distance 25mm is cut into the drill rod of length 2m, one end of drill rod is polished into round shape, the other end
Thickness is welded at the 400mm of end and moves back steel plate for the triangle that 120mm, two right-angle sides are respectively 100mm, 70mm, away from
It is moved back from triangle and the doughnut-shaped steel plate for wearing the drill rod, the steel plate and the drill rod is welded on the drill rod at steel plate 450mm
Between be welded with reinforcing rib, obtain air port drill rod；The doughnut-shaped steel plate is prepared by following methods：Steel plate using thickness as 12mm is
Raw material is prepared into the circular steel plate of a diameter of 150mm, then opens up endoporus in the circle of circular steel plate, makes the drill rod just
Wear the endoporus；
(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, non-resistance and barrier when drill rod is entered
Hinder, air port drill rod is then thrown into 40mm with sledgehammer every 22min, the molten slag in air port drill rod and side-blown converter is made to keep connecing
It touches；
(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port,
Air port drill rod is made to get through air port.
Embodiment 3：
The method that molten bath side-blown converter blocks up air port, includes the following steps：
(1) hexagonal steel of opposite side distance 25mm is cut into the drill rod of length 2m, one end of drill rod is polished into round shape, the other end
Thickness is welded at the 400mm of end and moves back steel plate for the triangle that 120mm, two right-angle sides are respectively 100mm, 70mm, away from
It is moved back from triangle and the doughnut-shaped steel plate for wearing the drill rod, the steel plate and the drill rod is welded on the drill rod at steel plate 450mm
Between be welded with reinforcing rib, obtain air port drill rod；The doughnut-shaped steel plate is prepared by following methods：Steel plate using thickness as 12mm is
Raw material is prepared into the circular steel plate of a diameter of 150mm, then opens up endoporus in the circle of circular steel plate, makes the drill rod just
Wear the endoporus；
(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, non-resistance and barrier when drill rod is entered
Hinder, air port drill rod is then thrown into 42mm with sledgehammer every 25min, the molten slag in air port drill rod and side-blown converter is made to keep connecing
It touches；
(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port,
Air port drill rod is made to get through air port.
Embodiment 4：
The method that molten bath side-blown converter blocks up air port, includes the following steps：
(1) hexagonal steel of opposite side distance 25mm is cut into the drill rod of length 2m, one end of drill rod is polished into round shape, the other end
Thickness is welded at the 400mm of end and moves back steel plate for the triangle that 120mm, two right-angle sides are respectively 100mm, 70mm, away from
It is moved back from triangle and the doughnut-shaped steel plate for wearing the drill rod, the steel plate and the drill rod is welded on the drill rod at steel plate 450mm
Between be welded with reinforcing rib, obtain air port drill rod；The doughnut-shaped steel plate is prepared by following methods：Steel plate using thickness as 12mm is
Raw material is prepared into the circular steel plate of a diameter of 150mm, then opens up endoporus in the circle of circular steel plate, makes the drill rod just
Wear the endoporus；
(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, non-resistance and barrier when drill rod is entered
Hinder, air port drill rod is then thrown into 36mm with sledgehammer every 27min, the molten slag in air port drill rod and side-blown converter is made to keep connecing
It touches；
(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port,
Air port drill rod is made to get through air port.
Embodiment 5：
The method that molten bath side-blown converter blocks up air port, includes the following steps：
(1) hexagonal steel of opposite side distance 25mm is cut into the drill rod of length 2m, one end of drill rod is polished into round shape, the other end
Thickness is welded at the 400mm of end and moves back steel plate for the triangle that 120mm, two right-angle sides are respectively 100mm, 70mm, away from
It is moved back from triangle and the doughnut-shaped steel plate for wearing the drill rod, the steel plate and the drill rod is welded on the drill rod at steel plate 450mm
Between be welded with reinforcing rib, obtain air port drill rod；The doughnut-shaped steel plate is prepared by following methods：Steel plate using thickness as 12mm is
Raw material is prepared into the circular steel plate of a diameter of 150mm, then opens up endoporus in the circle of circular steel plate, makes the drill rod just
Wear the endoporus；
(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, non-resistance and barrier when drill rod is entered
Hinder, air port drill rod is then thrown into 38mm with sledgehammer every 28min, the molten slag in air port drill rod and side-blown converter is made to keep connecing
It touches；
(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port,
Air port drill rod is made to get through air port.
Embodiment 6：
The method that molten bath side-blown converter blocks up air port, includes the following steps：
(1) hexagonal steel of opposite side distance 25mm is cut into the drill rod of length 2m, one end of drill rod is polished into round shape, the other end
Thickness is welded at the 400mm of end and moves back steel plate for the triangle that 120mm, two right-angle sides are respectively 100mm, 70mm, away from
It is moved back from triangle and the doughnut-shaped steel plate for wearing the drill rod, the steel plate and the drill rod is welded on the drill rod at steel plate 450mm
Between be welded with reinforcing rib, obtain air port drill rod；The doughnut-shaped steel plate is prepared by following methods：Steel plate using thickness as 12mm is
Raw material is prepared into the circular steel plate of a diameter of 150mm, then opens up endoporus in the circle of circular steel plate, makes the drill rod just
Wear the endoporus；
(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, non-resistance and barrier when drill rod is entered
Hinder, air port drill rod is then thrown into 50mm with sledgehammer every 30min, the molten slag in air port drill rod and side-blown converter is made to keep connecing
It touches；
(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port,
Air port drill rod is made to get through air port.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, the equal variation or modification change completed under the technical spirit suggested by all present invention, should all belong to
Cover the scope of the claims in the present invention.
Claims (2)
1. the method that molten bath side-blown converter blocks up air port, it is characterised in that：Include the following steps：
(1) hexagonal steel of opposite side distance 25mm is cut into the drill rod of length 2m, one end of drill rod is polished into round shape, other end distance
Thickness is welded at the 400mm of end and moves back steel plate for the triangle that 120mm, two right-angle sides are respectively 100mm, 70mm, in distance three
Angle, which is moved back, is welded with the doughnut-shaped steel plate for wearing the drill rod on the drill rod at steel plate 450mm, between the steel plate and the drill rod
Reinforcing rib is welded with, obtains air port drill rod；
(2) during side-blown converter heating blowing-out, air port drill rod is thrown into the air port of side-blown converter, until non-resistance and obstacle when drill rod is entered,
Then air port drill rod is thrown into 20~50mm with sledgehammer every 20~30min, makes the molten slag in air port drill rod and side-blown converter
Keep contact；
(3) during side-blown converter blow-on, first air port drill rod is beaten back out with sledgehammer, is then disclosed again with air port drill rod and beat air port, make wind
Mouth drill rod gets through air port.
2. the method that molten bath side-blown converter according to claim 1 blocks up air port, it is characterised in that：Step (1) the annular steel
Plate is prepared by following methods：Steel plate using thickness as 12mm is raw material, is prepared into the circular steel plate of a diameter of 150mm, Ran Hou
The circle of circular steel plate opens up endoporus, and the drill rod is made just to wear the endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290160.4A CN108165760B (en) | 2017-12-08 | 2017-12-08 | method for blowing through tuyere of molten pool side-blown converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290160.4A CN108165760B (en) | 2017-12-08 | 2017-12-08 | method for blowing through tuyere of molten pool side-blown converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108165760A true CN108165760A (en) | 2018-06-15 |
| CN108165760B CN108165760B (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711290160.4A Active CN108165760B (en) | 2017-12-08 | 2017-12-08 | method for blowing through tuyere of molten pool side-blown converter |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002371326A (en) * | 2001-06-14 | 2002-12-26 | Mitsui Mining & Smelting Co Ltd | Method and device for opening converter tuyere |
| CN201395607Y (en) * | 2009-05-21 | 2010-02-03 | 济钢集团有限公司 | Protective device for poking draught of blast furnace |
| CN201873700U (en) * | 2010-11-09 | 2011-06-22 | 南京钢铁股份有限公司 | Special device for poking blast furnace tuyere |
| CN202849466U (en) * | 2012-10-16 | 2013-04-03 | 武汉钢铁(集团)公司 | Blast-furnace tuyere opening device |
| CN205556724U (en) * | 2016-04-08 | 2016-09-07 | 安阳钢铁股份有限公司 | A smooth hammer of improved generation for quick replacement blast -furnace tuyere |
-
2017
- 2017-12-08 CN CN201711290160.4A patent/CN108165760B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002371326A (en) * | 2001-06-14 | 2002-12-26 | Mitsui Mining & Smelting Co Ltd | Method and device for opening converter tuyere |
| CN201395607Y (en) * | 2009-05-21 | 2010-02-03 | 济钢集团有限公司 | Protective device for poking draught of blast furnace |
| CN201873700U (en) * | 2010-11-09 | 2011-06-22 | 南京钢铁股份有限公司 | Special device for poking blast furnace tuyere |
| CN202849466U (en) * | 2012-10-16 | 2013-04-03 | 武汉钢铁(集团)公司 | Blast-furnace tuyere opening device |
| CN205556724U (en) * | 2016-04-08 | 2016-09-07 | 安阳钢铁股份有限公司 | A smooth hammer of improved generation for quick replacement blast -furnace tuyere |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108165760B (en) | 2019-12-06 |
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