CN111676336A - Blast furnace cooling wall pipe penetrating repair joint and repair method - Google Patents
Blast furnace cooling wall pipe penetrating repair joint and repair method Download PDFInfo
- Publication number
- CN111676336A CN111676336A CN202010589533.3A CN202010589533A CN111676336A CN 111676336 A CN111676336 A CN 111676336A CN 202010589533 A CN202010589533 A CN 202010589533A CN 111676336 A CN111676336 A CN 111676336A
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- China
- Prior art keywords
- pipe
- main body
- body connecting
- blast furnace
- connecting pipe
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- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 52
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000498 cooling water Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 37
- 210000004907 gland Anatomy 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
Abstract
The invention discloses a blast furnace cooling wall pipe penetrating repair joint and a repair method, which are characterized by comprising the following steps: the corrugated pipe type cooling wall comprises a main body connecting pipe, wherein one end of the main body connecting pipe is connected to a cooling wall cooling water pipe needing to be repaired in a welding mode, the other end of the main body connecting pipe is connected with an external water pipe through an external joint pipe, a corrugated pipe is arranged in the main body connecting pipe, and a connecting pipe branch pipe leading filler into the corrugated pipe is arranged on the main body connecting pipe. The blast furnace cooling wall pipe penetrating repair joint and the repair method have the advantages of simple structure, capability of realizing quick replacement and repair of the damaged water pipe and better application prospect.
Description
Technical Field
The invention belongs to the technical field of steel, and particularly relates to a blast furnace cooling wall pipe penetrating repair joint and a repair method.
Background
After the water pipe of the cooling wall of the blast furnace leaks, the whole replacement of the cooling wall can be realized only by long-time furnace shutdown maintenance, so that the method for repairing the pipe penetrating inside the cooling water pipe by utilizing the short-term damping-down maintenance time is generally adopted by the blast furnace production maintenance of iron and steel enterprises when a small amount of water pipe of the cooling wall leaks or the long-time furnace shutdown maintenance preparation process for replacing the cooling wall.
However, most of the connection modes of the flexible metal corrugated pipe after pipe penetration and the external original cooling water pipe adopt a corrugated pipe mode (a corrugated pipe contraction interface (head) cannot be manufactured on a construction site) of field welding or customization with a corrugated pipe manufacturer and a fixed-length cold pressing joint. Because the flexible corrugated pipe has small thickness, the on-site welding construction has high difficulty, has long consumption and is difficult to ensure quality; and adopt the bellows mode of customization length area cold pressing joint, because different grade type blast furnace different position stave water pipe cooling water pipe length all inequality, lead to the length kind of the bellows of customization length area cold pressing joint various to different conditions of leaking, the length that damage degree stave worn the pipe is all inequality, the bellows mode of customization area cold pressing joint is unfavorable for the urgent nimble processing in scene.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a blast furnace cooling wall pipe penetrating repair joint which is simple in structure and can realize quick replacement and repair of a damaged water pipe and a repair method.
In order to achieve the purpose, the invention adopts the technical scheme that: the provided blast furnace cooling wall pipe penetrating repair joint is characterized in that: the corrugated pipe type cooling wall comprises a main body connecting pipe, wherein one end of the main body connecting pipe is connected to a cooling wall cooling water pipe needing to be repaired in a welding mode, the other end of the main body connecting pipe is connected with an external water pipe through an external joint pipe, a corrugated pipe is arranged in the main body connecting pipe, and a connecting pipe branch pipe leading filler into the corrugated pipe is arranged on the main body connecting pipe.
In order to make the technical scheme more detailed and concrete, the invention also provides the following further preferable technical scheme to obtain satisfactory practical effect:
the outer wall of one end of the main body connecting pipe, which is connected with the outer joint pipe, is provided with an external thread matched with the internal thread on the compression nut, and the compression nut is used for correspondingly connecting the outer joint pipe on the main body connecting pipe.
An outer joint sealing gasket is arranged between the main body connecting pipe and the outer joint pipe.
The inner diameter of the connecting end of the main body connecting pipe connected with the outer joint pipe is larger than that of the corrugated pipe penetrating pipe.
And an anti-falling clamp spring clamped at the end of the corrugated pipe is arranged on the step surface at the bottom of the connecting end of the outer joint pipe.
And a second sealing gasket is arranged on the anti-falling clamp spring.
And a sealing gland is connected in the connecting end of the outer joint pipe.
And a first sealing gasket is arranged between the sealing gland and the second sealing gasket.
And the connecting pipe branch pipe is connected with a stop valve.
The blast furnace cooling wall repairing method is characterized by comprising the following steps of: step 1), cutting off a cooling water pipe of the cooling wall to be repaired, and respectively connecting two ends of the cooling water pipe with a pipe penetrating repair joint of the cooling wall; step 2), welding one end of a main body connecting pipe of the cooling wall pipe penetrating repair joint at the end part of the cooling wall cooling water pipe; step 3), cutting off the corrugated pipe according to the actual use length requirement on site, and limiting the end part of the corrugated pipe through an anti-falling clamp spring; step 4), sequentially placing a second sealing gasket and a first sealing gasket in the other end of the main body connecting pipe, and installing a sealing gland; step 5), connecting an outer joint pipe to the main body connecting pipe through a compression nut; and 6), after the cooling wall pipe penetrating repair joint is installed, opening a stop valve on the connecting pipe branch pipe, and introducing filler between the main body connecting pipe and the corrugated pipe.
Compared with the prior art, the invention has the following advantages: the blast furnace cooling wall pipe penetrating repair joint and the repair method have the advantages of simple structure, capability of realizing quick replacement and repair of the damaged water pipe and better application prospect.
Drawings
The contents of the drawings and the reference numerals in the drawings of the present specification will be briefly described as follows:
FIG. 1 is a schematic view of a blast furnace cooling wall pipe-through repair joint structure according to the present invention;
labeled as: 1. the main part connecting pipe, 2, connecting pipe branch pipe, 3, bellows, 4, gland, 5, gland, 6, external joint pipe, 7, the sealed pad of external joint, 8, first sealed pad, 9, the sealed pad of second, 10, anticreep jump ring.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
The blast furnace cooling wall pipe penetrating repair joint comprises a main body connecting pipe 1, wherein one end of the main body connecting pipe 1 is welded and connected to a cooling wall cooling water pipe to be repaired, the other end of the main body connecting pipe 1 is connected with an external water pipe through an external joint pipe 6, a corrugated pipe 3 is arranged in the main body connecting pipe 1, and a connecting pipe branch pipe 2 for leading in filler is arranged on the main body connecting pipe 1. One end of the main body connecting pipe 1 is connected with the thick wall of the cooling water pipe of the cooling wall to be repaired in a welding mode; after the quick connector is connected and finished, after the high-heat-conductivity filler is pressed in through the connecting pipe branch pipe 2, the space between the cooling water pipe is damaged by the main body connecting pipe 1 inside the metal corrugated pipe 3 and the original cooling wall, the corrugated pipe 3 can be cut off according to the use requirement, and quick replacement connection is realized.
According to the invention, the outer wall of one end of the main body connecting pipe 1, which is connected with the outer joint pipe 6, is provided with the external thread matched with the internal thread on the compression nut 5, and the compression nut 5 correspondingly connects the outer joint pipe 6 to the main body connecting pipe 1, so that the connection is rapid and convenient. An outer joint sealing gasket 7 is arranged between the main body connecting pipe 1 and the outer joint pipe 6. The outer joint seal 7 is used to seal the outer joint pipe 6 and the repaired stave cooling water inside the metal bellows 3.
In the present invention, as shown in fig. 1, the inner diameter of the connection end of the main body connection pipe 1 to the outer joint pipe 6 is larger than the inner diameter of the tube penetration of the corrugated tube 3. An anti-falling clamp spring 10 clamped at the end part of the corrugated pipe 3 is arranged on the step surface at the bottom of the connecting end of the outer joint pipe 6. The metal corrugated pipe 3 cut off according to the actual length requirement on site is fixed by the anti-slip clamp spring so as to prevent the corrugated pipe from moving in the axial direction.
In the invention, as shown in fig. 1, a second sealing gasket 9 is arranged on the anti-falling clamp spring 10. The connecting end of the outer joint pipe 6 is internally connected with a sealing gland 4. A first sealing gasket 8 is arranged between the sealing gland 4 and the second sealing gasket 9. The second sealing gasket 9 is a flexible sealing gasket with strong plasticity and is used for sealing the outer part of the metal corrugated pipe 3 and the inner wall of the main body connecting pipe 1; the first sealing gasket 8 is used for compressing the flexible second sealing gasket 9, isolating the rolled part at the cut part of the metal corrugated pipe 3 and the inner combined sealing gland 4 from wearing and damaging the second sealing gasket 9 in the compressing process.
In the present invention, as shown in fig. 1, a shut-off valve is connected to the connection pipe branch pipe 2 for controlling introduction and closure of the packing.
The method for repairing the cooling wall of the blast furnace is characterized by comprising the following steps of: step 1), cutting off a cooling water pipe of the cooling wall to be repaired, and respectively connecting two ends of the cooling water pipe with a pipe penetrating repair joint of the cooling wall; step 2), welding one end of a main body connecting pipe 1 of the cooling wall pipe penetrating repair joint on the end part of the cooling wall cooling water pipe; step 3), cutting off the corrugated pipe 3 according to the actual use length requirement on site, and limiting the end part of the corrugated pipe 3 by the anti-falling clamp spring 10; step 4), sequentially placing a second sealing gasket 9 and a first sealing gasket 8 into the other end of the main body connecting pipe 1, and installing a sealing gland 4; step 5), connecting the outer joint pipe 6 to the main body connecting pipe 1 through the compression nut 5; and 6), after the cooling wall pipe penetrating repair joint is installed, opening a stop valve on the connecting pipe branch pipe 2, and introducing filler between the main body connecting pipe 1 and the corrugated pipe 3.
In the invention, the sealing gland 4 is screwed and connected into the connecting end of the main body connecting pipe 1.
The invention relates to a blast furnace cooling wall pipe-through repairing joint.A main body connecting pipe 1 is connected to a cooling water pipe (thick wall) of a cooling wall to be repaired in a welding mode; the connecting pipe branch pipe 2 is connected with an external stop valve, after the quick connector is connected, high-heat-conductivity filler is pressed in through the connecting pipe, and after the external stop valve is closed, the space between the cooling water in the metal corrugated pipe 3 and the cooling water pipe connecting pipe and the original cooling wall damage cooling water pipe is sealed; and the outer joint compression nut 5 is used for fixing the outer joint pipe 6 and the quick joint integrally.
According to the repairing joint and the repairing method for the through pipe of the cooling wall of the blast furnace, the outer-layer thick-wall cooling water pipe is welded with the inner-layer standard thin-wall flexible corrugated pipe, and the external cooling water pipe is flexibly cut off, quickly fixed, fastened, sealed and connected, so that the rigid requirement of the external environment is met, the equipment standardization is improved, the quality requirement of a process method is ensured, and the strict timeliness requirement of the cooling wall through pipe repairing process method on the construction time is met.
According to the blast furnace cooling wall pipe penetrating repair joint and the repair method, the corrugated pipe of the special interface is not required to be customized, the length of the corrugated pipe is flexibly adjusted according to the lengths of different cooling wall water pipes, and construction is convenient. The joint is convenient for field installation, and is flexible and reliable. The fastening and sealing of the penetrated corrugated pipe, the sealing of the high heat conduction filler and the cooling water and the connection are completed at one time. The main body connecting pipe 1, the connecting pipe branch pipe 2 and the outer joint pipe 6 can be flexibly connected with an external pipeline according to the field mode (welding, quick connection and the like) of the cooling wall water pipe.
Because the short-term damping down maintenance of the blast furnace has strict time requirements, the pipe penetrating repair cooling wall water pipe needs a connection mode for flexibly connecting the flexible thin-wall corrugated pipe and the external cooling wall water pipe. The blast furnace cooling wall pipe penetrating repair joint and the repair method have the advantages of simple structure, capability of realizing quick replacement and repair of the damaged water pipe and better application prospect.
The invention has been described above with reference to the accompanying drawings, but the invention is not limited to the above-described embodiments, and it is within the scope of the invention to use various insubstantial modifications of the inventive concept and solutions or to apply them directly to other applications.
Claims (10)
1. The utility model provides a blast furnace stave poling restores and connects which characterized in that: the corrugated pipe type cooling wall comprises a main body connecting pipe, wherein one end of the main body connecting pipe is connected to a cooling wall cooling water pipe needing to be repaired in a welding mode, the other end of the main body connecting pipe is connected with an external water pipe through an external joint pipe, a corrugated pipe is arranged in the main body connecting pipe, and a connecting pipe branch pipe leading filler into the corrugated pipe is arranged on the main body connecting pipe.
2. The blast furnace stave threading repair connection of claim 1, wherein: the outer wall of one end of the main body connecting pipe, which is connected with the outer joint pipe, is provided with an external thread matched with the internal thread on the compression nut, and the compression nut is used for correspondingly connecting the outer joint pipe on the main body connecting pipe.
3. The blast furnace stave threading repair connection of claim 2, wherein: an outer joint sealing gasket is arranged between the main body connecting pipe and the outer joint pipe.
4. The blast furnace stave threading repair connection of any one of claims 1 to 3, wherein: the inner diameter of the connecting end of the main body connecting pipe connected with the outer joint pipe is larger than that of the corrugated pipe penetrating pipe.
5. The blast furnace stave threading repair connection of claim 4, wherein: and an anti-falling clamp spring clamped at the end of the corrugated pipe is arranged on the step surface at the bottom of the connecting end of the outer joint pipe.
6. The blast furnace stave threading repair connection of claim 5, wherein: and a second sealing gasket is arranged on the anti-falling clamp spring.
7. The blast furnace stave threading repair connection of claim 6, wherein: and a sealing gland is connected in the connecting end of the outer joint pipe.
8. The blast furnace stave threading repair connection of claim 7, wherein: and a first sealing gasket is arranged between the sealing gland and the second sealing gasket.
9. The blast furnace stave threading repair connection of claim 1, wherein: and the connecting pipe branch pipe is connected with a stop valve.
10. The blast furnace cooling wall repairing method is characterized by comprising the following steps of: step 1), cutting off a cooling water pipe of the cooling wall to be repaired, and respectively connecting two ends of the cooling water pipe with a pipe penetrating repair joint of the cooling wall; step 2), welding one end of a main body connecting pipe of the cooling wall pipe penetrating repair joint at the end part of the cooling wall cooling water pipe; step 3), cutting off the corrugated pipe according to the actual use length requirement on site, and limiting the end part of the corrugated pipe through an anti-falling clamp spring; step 4), sequentially placing a second sealing gasket and a first sealing gasket in the other end of the main body connecting pipe, and installing a sealing gland; step 5), connecting an outer joint pipe to the main body connecting pipe through a compression nut; and 6), after the cooling wall pipe penetrating repair joint is installed, opening a stop valve on the connecting pipe branch pipe, and introducing filler between the main body connecting pipe and the corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589533.3A CN111676336A (en) | 2020-06-24 | 2020-06-24 | Blast furnace cooling wall pipe penetrating repair joint and repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589533.3A CN111676336A (en) | 2020-06-24 | 2020-06-24 | Blast furnace cooling wall pipe penetrating repair joint and repair method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111676336A true CN111676336A (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010589533.3A Pending CN111676336A (en) | 2020-06-24 | 2020-06-24 | Blast furnace cooling wall pipe penetrating repair joint and repair method |
Country Status (1)
| Country | Link |
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| CN (1) | CN111676336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502364A (en) * | 2021-06-10 | 2021-10-15 | 上海宝冶冶金工程有限公司 | Method and structure for passing water-cooled tube at bottom of blast furnace |
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|---|---|---|---|---|
| CN201241163Y (en) * | 2008-08-19 | 2009-05-20 | 山东源泽工贸有限公司 | Blast furnace cooling wall tube restoring apparatus |
| CN102853190A (en) * | 2012-09-26 | 2013-01-02 | 玉环汽车配件实业有限公司 | Fast joint |
| CN203096096U (en) * | 2013-03-11 | 2013-07-31 | 日照利港冶金科技有限公司 | Seal joint for crack repair of steel water pipe embedded in copper casting cooling wall |
| KR101568598B1 (en) * | 2014-07-31 | 2015-11-12 | 주식회사 포스코 | Repair apparatus for cooling pip of blast furnace and repair method for cooling pip of blast furnace |
| CN206814798U (en) * | 2017-04-26 | 2017-12-29 | 河钢股份有限公司邯郸分公司 | A kind of pipe lining device of blast furnace cooling stave bad water pipe |
| CN107606342A (en) * | 2017-09-07 | 2018-01-19 | 安徽江淮汽车集团股份有限公司 | Pipeline connects equipment |
| CN212404138U (en) * | 2020-06-24 | 2021-01-26 | 芜湖新兴铸管有限责任公司 | Blast furnace stave poling restoration connects |
-
2020
- 2020-06-24 CN CN202010589533.3A patent/CN111676336A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201241163Y (en) * | 2008-08-19 | 2009-05-20 | 山东源泽工贸有限公司 | Blast furnace cooling wall tube restoring apparatus |
| CN102853190A (en) * | 2012-09-26 | 2013-01-02 | 玉环汽车配件实业有限公司 | Fast joint |
| CN203096096U (en) * | 2013-03-11 | 2013-07-31 | 日照利港冶金科技有限公司 | Seal joint for crack repair of steel water pipe embedded in copper casting cooling wall |
| KR101568598B1 (en) * | 2014-07-31 | 2015-11-12 | 주식회사 포스코 | Repair apparatus for cooling pip of blast furnace and repair method for cooling pip of blast furnace |
| CN206814798U (en) * | 2017-04-26 | 2017-12-29 | 河钢股份有限公司邯郸分公司 | A kind of pipe lining device of blast furnace cooling stave bad water pipe |
| CN107606342A (en) * | 2017-09-07 | 2018-01-19 | 安徽江淮汽车集团股份有限公司 | Pipeline connects equipment |
| CN212404138U (en) * | 2020-06-24 | 2021-01-26 | 芜湖新兴铸管有限责任公司 | Blast furnace stave poling restoration connects |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502364A (en) * | 2021-06-10 | 2021-10-15 | 上海宝冶冶金工程有限公司 | Method and structure for passing water-cooled tube at bottom of blast furnace |
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