CN201190165Y - Taphole of blowing-on of blast furnace with wind pressure tube - Google Patents
Taphole of blowing-on of blast furnace with wind pressure tube Download PDFInfo
- Publication number
- CN201190165Y CN201190165Y CNU2008200216330U CN200820021633U CN201190165Y CN 201190165 Y CN201190165 Y CN 201190165Y CN U2008200216330 U CNU2008200216330 U CN U2008200216330U CN 200820021633 U CN200820021633 U CN 200820021633U CN 201190165 Y CN201190165 Y CN 201190165Y
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- blast furnace
- wind
- pressure tube
- wind pressure
- iron
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Abstract
The utility model discloses an iron tapping hole provided with a wind pressure pipe for opening a furnace of a blast furnace. The iron tapping hole provided with a wind pressure pipe is composed of a blast furnace iron tapping hole (1) and a taphole clay jamming body (2). The iron tapping hole provided with the wind pressure pipe is characterized in that a wind pressure pipe (3) is buried and arranged at the center of the taphole clay jamming body (2), a blowing hole (5) is arranged on the segment of the wind pressure pipe (3), which is positioned in the blast furnace, a compressing blower connecting pipe (7) is arranged at the upper side of the segment of the wind pressure pipe (3), which is positioned outside the blast furnace, and an upper compressing blower (8) is connected at the upper end of the compressing blower connecting pipe (7). By adopting the iron tapping hole provided with the wind pressure pipe for opening the furnace of the blast furnace, the iron tapping hole is not required to be burnt through oxygen and a fuse primer is not required to be buried and arranged in the taphole clay, the iron tapping hole is jammed through the resistance of wind pressure, the iron tapping can be performed when wind is stopped, therefore, the utility model has the advantages that the structure is simple, the operation is convenient, the service life is long, the working efficiency can be improved, the environmental pollution is prevented, and the iron tapping hole can be widely used for the iron tapping hole for opening the furnace of the blast furnace.
Description
Technical field
The utility model relates to a kind of improvement of blast furnace opening iron notch, and specifically a kind of iron notch of blast furnace opening band wind-pressure tube is applicable to the iron-smelting blast furnace start-up of the furnace.
Background technology
At newly-built blast furnace or big or middle when repairing blast furnace opening, the first stove iron of blast furnace is the key of blow-on, and the smooth opening first stove iron iron mouth in time taps a blast furnace and will blow-on be created good condition.At present, most of iron work blast furnace is provided with fuse primer when blow-on, light the coal gas of iron mouth fuse primer after the blow-on igniting, the iron mouth is seen the stifled iron mouth of going up behind the slag, then, burns tapping outlet with oxygen when going out first stove, use the stemming shutoff after having gone out iron, on the stemming of shutoff, leave the position, hole with taphole drilling machine when tapping a blast furnace once more, flow out molten iron, wait molten iron after rolling again with the stemming shutoff.The shortcoming of this blow-on iron notch: the one, the blow-on first stove iron furnace cylinder temperature deficiency, slag iron flowability is relatively poor in the cupola well, and the iron mouth is bad to be opened, and it is longer that oxygen burns the iron mouth time, and the stokehold workload is bigger; The 2nd, the stokehold a large amount of airborne dusts, contaminate environment can occur when burning the iron mouth with oxygen; The 3rd, the bad grasp of iron mouth channel diameter behind the burning iron mouth, iron mouth passage is excessive easily, and the iron mouth is prone to and runs big flow phenomenon, causes the stokehold accident.
Summary of the invention
The purpose of this utility model need not special-purpose oxygen and burns the iron mouth when being to provide a kind of blast furnace opening, do not need to add fuse primer yet, molten iron is flowed out automatically, and simple in structure, easy to use, reduce cost, the iron notch of not fragile, free from environmental pollution, the blast furnace opening band wind-pressure tube that can increase substantially efficiency.
For reaching above purpose, the technical scheme that the utility model adopted is: the iron notch of this blast furnace opening band wind-pressure tube, by blast furnace iron notch, the stemming blockage body constitutes, blast furnace iron notch and high furnace shell connect as one, and protrude high furnace shell, be in the top of ladle heel layer in the blast furnace, the stemming blockage body is blocked in the blast furnace iron notch, it is characterized in that burying wind-pressure tube underground at the center of stemming blockage body, the inner termination of wind-pressure tube extends the upper surface central position of ladle heel layer in the blast furnace, and establish blowhole on one section in wind-pressure tube is in blast furnace, termination portion outside wind-pressure tube is in blast furnace establishes ball valve, and one section upside is established the compression fan pipe connecting outside wind-pressure tube is in blast furnace, connects compression fan in the upper end of compression fan pipe connecting.When using the utility model, compression fan will ceaselessly send compress wind in blast furnace, make in blast furnace, drying that blowhole on the wind-pressure tube inner segment do not stop, the slag iron that the blow-on material forms forms the district of circling round all the time around the wind-pressure tube inner segment, treat that slag iron liquid level rises to when tapping a blast furnace condition, the closes compression blower fan is opened the ball valve on the wind-pressure tube external end head simultaneously, by the heating power pressure in the blast furnace slag iron is flowed out automatically from wind-pressure tube.The utility model is also implemented by following measure: described wind-pressure tube is that weldless steel tube is made, the diameter of wind-pressure tube is 50mm, the inner port sealing of wind-pressure tube, blowhole is located at wind-pressure tube and is on the tube wall of interior one section of stove, and establish a blowhole every 20cm, vertically and radially equidistant cross arrangement on tube wall; Described compression fan pipe connecting is also made for weldless steel tube, the diameter of compression fan pipe connecting is 20mm, fixing upward pressure table also on the compression fan pipe connecting, in the process of in blast furnace, drying, can detect pressure of air supply by tensimeter, the pressure of general requirement compress wind is greater than the 0.15Mpa of hot-blast pressure in the blast furnace at least, and the interior hot-blast pressure of blast furnace is obstructed.
The beneficial effects of the utility model are: compare with present blast furnace opening iron notch, can possess following advantage: the one, need not to burn tapping outlet with oxygen, and also need not in stemming, to bury underground fuse primer, therefore can save a large amount of expenses; The 2nd owing in stemming, bury wind-pressure tube underground, by the resistance plugging of blast, as long as stop blast when tapping a blast furnace, therefore, make tapping outlet designs simplification, be convenient to operate, can alleviate working strength of workers, increase work efficiency; The 3rd, but one-step installation, repeatedly use, no thermal stresses changes to be damaged, so long service life can reduce frequency of maintenance; The 4th, airborne dust is few, can prevent the pollution of the environment.
Description of drawings
Fig. 1 is structure of the present utility model office's cross-sectional schematic vertically.
Fig. 2 be under the utility model application state vertically the office cross-sectional schematic.
Embodiment
Make the utility model with reference to accompanying drawing 1,2.The iron notch of this blast furnace opening band wind-pressure tube, by blast furnace iron notch 1, stemming blockage body 2 constitutes, blast furnace iron notch 1 connects as one with high furnace shell, and protrude high furnace shell, be in the top of ladle heel layer 4 in the blast furnace, stemming blockage body 2 is blocked in the blast furnace iron notch 1, it is characterized in that burying wind-pressure tube 3 underground at the center of stemming blockage body 2, the inner termination of wind-pressure tube 3 extends the upper surface middle part position of ladle heel layer 4 in the blast furnace, and on being in the blast furnace one section, wind-pressure tube 3 establishes blowhole 5, a termination portion that is in outside the blast furnace at wind-pressure tube 3 establishes ball valve 6, and be in outside the blast furnace one section upside at wind-pressure tube 3 and establish compression fan pipe connecting 7, connect compression fan 8 in the upper end of compression fan pipe connecting 7.Described wind-pressure tube 3 is made for weldless steel tube, the diameter of wind-pressure tube 3 is 50mm, the sealing of the inner port of wind-pressure tube 3, and blowhole 5 is located at wind-pressure tube 3 in blast furnace on one section the tube wall, and establish a blowhole 5 every 20cm, vertically and radially equidistant cross arrangement on tube wall; Described compression fan pipe connecting 7 is also made for weldless steel tube, the diameter of compression fan pipe connecting 7 is 20mm, fixing upward pressure table 9 also on compression fan pipe connecting 7, in air-supply process in blast furnace, can detect pressure of air supply by tensimeter 9, the pressure of general requirement compress wind is greater than the 0.15Mpa of hot-blast pressure in the stove at least.
Claims (2)
1, a kind of iron notch of blast furnace opening band wind-pressure tube, constitute by blast furnace iron notch (1), stemming blockage body (2), stemming blockage body (2) is blocked in the blast furnace iron notch (1), it is characterized in that burying wind-pressure tube (3) underground at the center of stemming blockage body (2), and on being in the blast furnace one section, wind-pressure tube (3) establishes blowhole (5), a termination portion that is in outside the blast furnace at wind-pressure tube (3) establishes ball valve (6), and be in outside the blast furnace one section upside at wind-pressure tube (3) and establish compression fan pipe connecting (7), connect in the upper end of compression fan pipe connecting (7) and go up compression fan (8).
2, the iron notch of blast furnace opening band wind-pressure tube according to claim 1, the diameter that it is characterized in that described wind-pressure tube (3) is 50mm, the inner port sealing of wind-pressure tube (3), blowhole (5) is located at wind-pressure tube (3) and is on the tube wall of interior one section of blast furnace, and establish a blowhole (5) every 20cm, vertically and radially equidistant cross arrangement on tube wall; The diameter of described compression fan pipe connecting (7) is 20mm, fixing upward pressure table (9) also on compression fan pipe connecting (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200216330U CN201190165Y (en) | 2008-04-30 | 2008-04-30 | Taphole of blowing-on of blast furnace with wind pressure tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200216330U CN201190165Y (en) | 2008-04-30 | 2008-04-30 | Taphole of blowing-on of blast furnace with wind pressure tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190165Y true CN201190165Y (en) | 2009-02-04 |
Family
ID=40334324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200216330U Expired - Fee Related CN201190165Y (en) | 2008-04-30 | 2008-04-30 | Taphole of blowing-on of blast furnace with wind pressure tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190165Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220442A (en) * | 2011-06-08 | 2011-10-19 | 秦皇岛首秦金属材料有限公司 | Method for realizing opening of blast furnace or fast ignition during intermediate overhaul |
| CN105838835A (en) * | 2016-06-22 | 2016-08-10 | 山东钢铁股份有限公司 | Blast furnace blowing-in iron notch device and blast furnace blowing-in iron notch method |
| CN112575135A (en) * | 2020-12-25 | 2021-03-30 | 北京金泰烁昌科技有限公司 | Blast furnace taphole dredging and blockage removing equipment and using method thereof |
-
2008
- 2008-04-30 CN CNU2008200216330U patent/CN201190165Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220442A (en) * | 2011-06-08 | 2011-10-19 | 秦皇岛首秦金属材料有限公司 | Method for realizing opening of blast furnace or fast ignition during intermediate overhaul |
| CN105838835A (en) * | 2016-06-22 | 2016-08-10 | 山东钢铁股份有限公司 | Blast furnace blowing-in iron notch device and blast furnace blowing-in iron notch method |
| CN112575135A (en) * | 2020-12-25 | 2021-03-30 | 北京金泰烁昌科技有限公司 | Blast furnace taphole dredging and blockage removing equipment and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20110430 |