CN114134272A - Blast furnace tuyere small sleeve rapid leakage detection device and use method thereof - Google Patents
Blast furnace tuyere small sleeve rapid leakage detection device and use method thereof Download PDFInfo
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- CN114134272A CN114134272A CN202111681330.8A CN202111681330A CN114134272A CN 114134272 A CN114134272 A CN 114134272A CN 202111681330 A CN202111681330 A CN 202111681330A CN 114134272 A CN114134272 A CN 114134272A
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 23
- 238000004321 preservation Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 138
- 239000003595 mist Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses a blast furnace tuyere small sleeve quick leakage detection device, which comprises a blast furnace main body, wherein the bottom of the blast furnace main body is fixedly connected with a bottom plate, a heat preservation layer is arranged in the blast furnace main body, a fixed cover is arranged at the bottom of one side of the blast furnace main body, one end of the tuyere small sleeve body is positioned in the blast furnace main body, and one end of the tuyere small sleeve body penetrates through the heat preservation layer. The safety of equipment use is improved.
Description
Technical Field
The invention relates to the technical field of tuyere small sleeve leakage detection equipment, in particular to a blast furnace tuyere small sleeve quick leakage detection device and a using method thereof.
Background
The tuyere small sleeve is important equipment in a blast furnace air inlet system, is made of copper, is filled with cooling water, protrudes into a furnace to prevent hot air and pulverized coal from directly scouring a furnace wall, and has the function of feeding the hot air into the blast furnace, the front end of the tuyere small sleeve is in a high-temperature environment close to 2000 ℃, the temperature of a slag iron melt is above 1400 ℃, the temperature of the hot air passing through the tuyere small sleeve is about 1250 ℃, and the working environment of the tuyere small sleeve is extremely severe;
the blast furnace tuyere small sleeve belongs to a vulnerable spare part in the production of a blast furnace, so that water leakage seriously influences the smooth operation of the blast furnace, increases the coke ratio, increases the cost, influences the yield, causes the freezing of a furnace hearth, and seriously causes the serious accident that the tuyere small sleeve burns through slag iron in the furnace to be sprayed out; measuring water inlet and outlet pressure; a method for measuring water inlet and outlet flow; direct observation methods and the like, and the methods are not intuitive, are difficult to judge when the water leakage is small, are easy to judge by mistake, cause the shutdown to replace good tuyere spare parts, waste time and influence the yield.
Disclosure of Invention
The invention aims to provide a blast furnace tuyere small sleeve quick leak detection device and a using method thereof, and aims to solve the problems of non-intuitive detection method, high detection equipment cost and low judgment precision in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a blast furnace tuyere small sleeve quick leak hunting device, includes the blast furnace main part, blast furnace main part bottom fixedly connected with bottom plate, and blast furnace main part internally mounted has the heat preservation, and fixed cover is installed to blast furnace main part one side bottom, and installs tuyere small sleeve body on one side of the fixed cover, and tuyere small sleeve body one end is located inside the blast furnace main part, and tuyere small sleeve body one end runs through the heat preservation.
Preferably, the top and the bottom of one side of the tuyere small sleeve body are respectively provided with a connecting pipe, one end of each connecting pipe is respectively sleeved with a first water pipe and a second water pipe, and the peripheries of the first water pipe and the second water pipe are respectively sleeved and fixed with a fixing ring.
Preferably, the first raceway one end fixedly connected with stop valve of intaking, and intake stop valve one side center installs the second handle, intake stop valve top fixedly connected with inlet tube.
Preferably, one side of the second water delivery pipe is fixedly connected with a three-way plug valve, a first handle is installed at the center of one side of the three-way plug valve, and the top of the three-way plug valve is fixedly connected with a water outlet pipe.
Preferably, the center of one adjacent side of three-way plug valve is fixedly connected with airtight joint, and airtight joint installs the hose in one side, and hose one end is located inside the interim water catch bowl, and the inside water that holds of interim water catch bowl.
A use method of a blast furnace tuyere small sleeve quick leak detection device comprises the steps of firstly, assembling equipment; step two, introducing water flow; step three, detecting water inflow; step four, bubble leakage detection;
in the first step, the equipment is firstly assembled according to a design scheme, the first water delivery pipe and the second water delivery pipe are sleeved on a connecting pipe on one side of the tuyere small sleeve body, the fixing ring is fixed, then the second handle, the water inlet pipe and the water inlet stop valve are installed on one side of the first water delivery pipe, and then the hose, the airtight joint, the first handle and the three-way plug valve are installed at one end of the second water delivery pipe, so that the installation of the equipment is completed;
in the second step, after the equipment in the first step is installed, the water inlet stop valve is opened at the moment, so that water enters the water inlet stop valve from the water inlet pipe, then enters the first water pipe, then flows into the tuyere small sleeve body, and then flows out of the second water pipe, at the moment, the three-way plug valve is closed to face the direction of the water outlet pipe, and thus the water flows out of the water outlet pipe;
in the third step, after the water flow in the second step flows out, the water inlet stop valve is turned off for four fifths, the water inlet pressure is instantaneously lower than the pressure in the blast furnace main body, if the tuyere small sleeve body is damaged, high-temperature pressure air must flow into the tuyere small sleeve body from the damaged part in the blast furnace main body, and the high-temperature pressure air is blown out along a branch pipe joint on one side of the three-way plug valve to form obvious air lines and white water mist, so that the tuyere small sleeve is proved to be seriously damaged;
wherein in the above-mentioned step four, when there is not obvious wind line and white water smoke in step three, assemble hose and airtight joint to the branch pipe joint of three-way plug valve one side this moment, put into temporary water catch bowl with the one end of hose afterwards, close the stop valve that intakes simultaneously, have the bubble to emerge from the aquatic in the temporary water catch bowl, prove that tuyere small sleeve leaks a little.
Preferably, in the first step, the drift diameter of the water inlet stop valve is 1-1.5 times of the drift diameter of the water inlet pipe.
Preferably, in the first step, the drift diameter of the three-way plug valve must be the same as that of the water outlet pipe.
Preferably, in the third step, the operator must stand on the side of the branch joint on one side of the three-way cock valve and cannot face the front side of the branch joint on one side of the three-way cock valve.
Preferably, in the fourth step, the closing time of the water inlet stop valve is 5-10 s.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has simple structure and accurate judgment, avoids a large amount of water leakage into the furnace, prevents the furnace from being cooled and being incapable of tapping, ensures the stable operation of the blast furnace and is beneficial to improving the yield of the blast furnace;
2. the method for judging the water leakage in the boiler is simple and intuitive, avoids misjudgment, finds and processes the water leakage in time, properly controls the water inflow after the judgment is accurate, prevents the water from continuously leaking into the boiler, is simple and effective, improves the detection efficiency and reduces the detection cost;
3. the invention ensures the continuous and reliable use of the tuyere small sleeve body, avoids the occurrence of a vicious accident that the tuyere small sleeve body burns through slag iron sprayed out of the furnace, and improves the use safety of equipment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of the overall construction of the present invention;
FIG. 2 is an enlarged schematic view of region A of FIG. 1 in accordance with the present invention;
FIG. 3 is an elevational view of the overall construction of the present invention;
FIG. 4 is an elevational partial cross-sectional view of the overall construction of the invention;
FIG. 5 is an enlarged view of area B of FIG. 4 in accordance with the present invention;
FIG. 6 is an elevational view of the overall construction of the hose of the present invention with the hose removed;
FIG. 7 is a flow chart of a method of the present invention;
in the figure: 1. a temporary water collection tank; 2. a base plate; 3. a blast furnace main body; 4. a hose; 5. an airtight joint; 6. a first handle; 7. a water outlet pipe; 8. a second handle; 9. a water inlet pipe; 10. a water inlet stop valve; 11. a first water delivery pipe; 12. a fixed cover; 13. a second water delivery pipe; 14. a three-way plug valve; 15. a tuyere small sleeve body; 16. a connecting pipe; 17. a fixing ring; 18. and (7) an insulating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a blast furnace tuyere small sleeve rapid leak detection device comprises a blast furnace main body 3, a bottom plate 2 is fixedly connected to the bottom of the blast furnace main body 3, a heat preservation layer 18 is arranged inside the blast furnace main body 3, a fixing cover 12 is arranged at the bottom of one side of the blast furnace main body 3, a tuyere small sleeve body 15 is arranged at one side of the fixing cover 12, one end of the tuyere small sleeve body 15 is positioned inside the blast furnace main body 3, one end of the tuyere small sleeve body 15 penetrates through the heat preservation layer 18, connecting pipes 16 are respectively arranged at the top and the bottom of one side of the tuyere small sleeve body 15, one ends of the two connecting pipes 16 are respectively sleeved with a first water conveying pipe 11 and a second water conveying pipe 13, fixing rings 17 are respectively sleeved and fixed on the peripheries of the first water conveying pipe 11 and the second water conveying pipe 13, one end of the first water conveying pipe 11 is fixedly connected with a water inlet stop valve 10, a second handle 8 is arranged at the center of one side of the water inlet stop valve 10, a water inlet pipe 9 is fixedly connected with the top of the water inlet stop valve 10, be favorable to intaking, second raceway 13 one side fixedly connected with three way plug valve 14, and the first in command 6 is installed at three way plug valve 14 one side center, three way plug valve 14 top fixedly connected with outlet pipe 7, be favorable to going out water, the adjacent one side center fixedly connected with air tight joint 5 of three way plug valve 14, and air tight joint 5 one side installs hose 4, hose 4 one end is located inside interim water catch bowl 1, and 1 inside water that holds of interim water catch bowl, be favorable to judging whether gas leakage through the bubble in the interim water catch bowl 1.
Referring to fig. 7, the present invention provides a technical solution: a use method of a blast furnace tuyere small sleeve quick leak detection device comprises the steps of firstly, assembling equipment; step two, introducing water flow; step three, detecting water inflow; step four, bubble leakage detection;
in the first step, firstly, the equipment is assembled according to a design scheme, a first water delivery pipe 11 and a second water delivery pipe 13 are sleeved on a connecting pipe 16 on one side of a tuyere small sleeve body 15, a fixing ring 17 is fixed, then a second handle 8, a water inlet pipe 9 and a water inlet stop valve 10 are installed on one side of the first water delivery pipe 11, and then a hose 4, an airtight joint 5, a first handle 6 and a three-way plug valve 14 are installed at one end of the second water delivery pipe 13, so that the installation of the equipment is completed, the drift diameter of the water inlet stop valve 10 is 1-1.5 times of that of the water inlet pipe 9, and the drift diameter of the three-way plug valve 14 is the same as that of a water outlet pipe 7;
in the second step, after the installation of the equipment in the first step is completed, the water inlet stop valve 10 is opened at the moment, so that water enters the water inlet stop valve 10 from the water inlet pipe 9, then enters the first water pipe 11, then flows into the tuyere small sleeve body 15, and then flows out from the second water pipe 13, at the moment, the three-way plug valve 14 is closed to the direction towards the water outlet pipe 7, and then the water flows out from the water outlet pipe 7;
in the third step, after the water flow in the second step flows out, the water inlet stop valve is turned off by 10 fifths, the water inlet pressure is instantaneously lower than the pressure in the blast furnace main body 3, if the tuyere small sleeve body 15 is damaged, high-temperature pressure air must flow into the tuyere small sleeve body 15 from the damaged part in the blast furnace main body 3 and is blown out along the branch pipe joint on one side of the three-way plug valve 14 to form obvious air lines and white water mist, so that the tuyere small sleeve is proved to be seriously damaged, and an operator must stand on the side surface of the branch pipe joint on one side of the three-way plug valve 14 and cannot be over against the front surface of the branch pipe joint on one side of the three-way plug valve 14;
in the fourth step, when no obvious wind line or white water mist exists in the third step, the hose 4 and the airtight joint 5 are assembled on the branch pipe joint on one side of the three-way plug valve 14, then one end of the hose 4 is placed into the temporary water collecting tank 1, the water inlet stop valve 10 is closed at the same time, the closing time of the water inlet stop valve 10 is 5-10s, bubbles emerge from water in the temporary water collecting tank 1, and the air port small sleeve is proved to leak slightly.
Based on the above, the invention has the advantages that the structure is simple, the judgment is accurate, the phenomenon that the blast furnace main body 3 is cold and cannot be tapped due to a large amount of water leakage into the blast furnace main body 3 is avoided, the stable operation of the blast furnace main body 3 is ensured, the yield of the blast furnace main body 3 is favorably improved, meanwhile, the judgment method is simple and intuitive, the misjudgment is avoided, the timely discovery and the timely treatment are realized, the water inlet is properly controlled after the judgment is accurate, the water leakage into the blast furnace main body 3 is prevented from continuing, the detection method is simple and effective, the detection efficiency is improved, the detection cost is reduced, the invention ensures the continuous and reliable use of the tuyere small sleeve body 15, avoids the occurrence of a serious accident that the tuyere small sleeve body 15 burns out slag iron in the blast furnace main body 3, and improves the safety of the use of equipment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a quick leak hunting device of blast furnace tuyere small sleeve, includes blast furnace main part (3), its characterized in that: the blast furnace is characterized in that a bottom plate (2) is fixedly connected to the bottom of a blast furnace main body (3), a heat preservation layer (18) is arranged inside the blast furnace main body (3), a fixed cover (12) is arranged at the bottom of one side of the blast furnace main body (3), a tuyere small sleeve body (15) is arranged on one side of the fixed cover (12), one end of the tuyere small sleeve body (15) is located inside the blast furnace main body (3), and the heat preservation layer (18) is penetrated through one end of the tuyere small sleeve body (15).
2. The blast furnace tuyere small sleeve quick leak detection device according to claim 1, characterized in that: connecting pipes (16) are respectively installed at the top and the bottom of one side of the tuyere small sleeve body (15), one ends of the two connecting pipes (16) are respectively sleeved with a first water pipe (11) and a second water pipe (13), and fixing rings (17) are respectively sleeved and fixed on the peripheries of the first water pipe (11) and the second water pipe (13).
3. The blast furnace tuyere small sleeve quick leak detection device according to claim 2, characterized in that: first raceway (11) one end fixedly connected with stop valve (10) of intaking, and intake stop valve (10) one side center install second handle (8), intake stop valve (10) top fixedly connected with inlet tube (9).
4. The blast furnace tuyere small sleeve quick leak detection device according to claim 2, characterized in that: one side of the second water delivery pipe (13) is fixedly connected with a three-way plug valve (14), a first handle (6) is installed at the center of one side of the three-way plug valve (14), and a water outlet pipe (7) is fixedly connected to the top of the three-way plug valve (14).
5. The blast furnace tuyere small sleeve quick leak detection device according to claim 4, characterized in that: three-way plug valve (14) adjacent one side center fixedly connected with airtight joint (5), and airtight joint (5) one side installs hose (4), and hose (4) one end is located inside interim water catch bowl (1), and just inside water that holds of interim water catch bowl (1).
6. A use method of a blast furnace tuyere small sleeve quick leak detection device comprises the steps of firstly, assembling equipment; step two, introducing water flow; step three, detecting water inflow; step four, bubble leakage detection; the method is characterized in that:
in the first step, the equipment is firstly assembled according to a design scheme, a first water delivery pipe (11) and a second water delivery pipe (13) are sleeved on a connecting pipe (16) on one side of a tuyere small sleeve body (15), a fixing ring (17) is fixed, then a second handle (8), a water inlet pipe (9) and a water inlet stop valve (10) are installed on one side of the first water delivery pipe (11), and then a hose (4), an airtight joint (5), a first handle (6) and a three-way plug valve (14) are installed at one end of the second water delivery pipe (13), so that the installation of the equipment is completed;
in the second step, after the equipment in the first step is installed, the water inlet stop valve (10) is opened at the moment, so that water enters the water inlet stop valve (10) from the water inlet pipe (9), then enters the first water pipe (11), then flows into the tuyere small sleeve body (15), then flows out of the second water pipe (13), and at the moment, the three-way plug valve (14) is closed to face the direction of the water outlet pipe (7), so that the water flows out of the water outlet pipe (7);
in the third step, after the water flow in the second step flows out, the water inlet stop valve (10) is turned off for four fifths, the water inlet pressure is instantaneously lower than the pressure in the blast furnace main body (3), if the tuyere small sleeve body (15) is damaged, high-temperature pressure air must flow into the tuyere small sleeve body (15) from the damaged part in the blast furnace main body (3), and the high-temperature pressure air is blown out along the branch pipe joint on one side of the three-way plug valve (14) to form obvious air lines and white water mist, so that the tuyere small sleeve is proved to be seriously damaged;
in the fourth step, when no obvious wind line or white water mist exists in the third step, the hose (4) and the airtight connector (5) are assembled on the branch pipe connector on one side of the three-way plug valve (14), then one end of the hose (4) is placed into the temporary water collecting tank (1), the water inlet stop valve (10) is closed, bubbles in the temporary water collecting tank (1) emerge from water, and the air port small sleeve is proved to leak slightly.
7. The use method of the blast furnace tuyere small sleeve quick leak detection device according to claim 6, characterized in that: in the first step, the drift diameter of the water inlet stop valve (10) is 1-1.5 times of the drift diameter of the water inlet pipe (9).
8. The use method of the blast furnace tuyere small sleeve quick leak detection device according to claim 6, characterized in that: in the first step, the drift diameter of the three-way plug valve (14) is required to be the same as that of the water outlet pipe (7).
9. The use method of the blast furnace tuyere small sleeve quick leak detection device according to claim 6, characterized in that: in the third step, an operator must stand on the side surface of the branch pipe joint on one side of the three-way plug valve (14) and cannot be over against the front surface of the branch pipe joint on one side of the three-way plug valve (14).
10. The use method of the blast furnace tuyere small sleeve quick leak detection device according to claim 6, characterized in that: in the fourth step, the closing time of the water inlet stop valve (10) is 5-10 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681330.8A CN114134272A (en) | 2021-12-28 | 2021-12-28 | Blast furnace tuyere small sleeve rapid leakage detection device and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681330.8A CN114134272A (en) | 2021-12-28 | 2021-12-28 | Blast furnace tuyere small sleeve rapid leakage detection device and use method thereof |
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| CN114134272A true CN114134272A (en) | 2022-03-04 |
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| CN202111681330.8A Pending CN114134272A (en) | 2021-12-28 | 2021-12-28 | Blast furnace tuyere small sleeve rapid leakage detection device and use method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133373A (en) * | 1977-08-12 | 1979-01-09 | Inland Steel Company | Leak detecting apparatus |
| CN108220516A (en) * | 2017-12-11 | 2018-06-29 | 鞍钢股份有限公司 | A kind of method whether on-line checking blast-furnace tuyere damages |
| CN210001882U (en) * | 2018-10-23 | 2020-01-31 | 新疆八一钢铁股份有限公司 | COREX furnace tuyere small sleeve damage inspection device |
| CN214458120U (en) * | 2021-03-15 | 2021-10-22 | 大冶特殊钢有限公司 | Online leakage detection device for blast furnace tuyere small sleeve |
-
2021
- 2021-12-28 CN CN202111681330.8A patent/CN114134272A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133373A (en) * | 1977-08-12 | 1979-01-09 | Inland Steel Company | Leak detecting apparatus |
| CN108220516A (en) * | 2017-12-11 | 2018-06-29 | 鞍钢股份有限公司 | A kind of method whether on-line checking blast-furnace tuyere damages |
| CN210001882U (en) * | 2018-10-23 | 2020-01-31 | 新疆八一钢铁股份有限公司 | COREX furnace tuyere small sleeve damage inspection device |
| CN214458120U (en) * | 2021-03-15 | 2021-10-22 | 大冶特殊钢有限公司 | Online leakage detection device for blast furnace tuyere small sleeve |
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