CN113122666A - Operation method for accurately positioning leakage point of blast furnace water-cooling wall - Google Patents
Operation method for accurately positioning leakage point of blast furnace water-cooling wall Download PDFInfo
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- CN113122666A CN113122666A CN202110423328.4A CN202110423328A CN113122666A CN 113122666 A CN113122666 A CN 113122666A CN 202110423328 A CN202110423328 A CN 202110423328A CN 113122666 A CN113122666 A CN 113122666A
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- water
- pipe
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- cooling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
- C21B7/103—Detection of leakages of the cooling liquid
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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 relates to an operation method for accurately positioning a leakage point of a blast furnace water-cooling wall, which comprises the following steps; 1) detecting the cooling vertical pipe section with leakage according to a blast furnace pressure monitoring system; 2) selecting a transparent rubber tube, connecting the bottom of the transparent rubber tube with a drain valve at the bottom of the leaked cooling vertical tube, and vertically upwards drawing and fixing the transparent rubber tube; 3) opening an exhaust valve and a drain valve at the top of the leaked cooling vertical pipe, and filling water into the pipe from the top end of the transparent rubber pipe to enable the filled water to flow into the cooling vertical pipe through the drain valve, automatically discharging gas in the cooling vertical pipe from the exhaust valve, and finally filling the transparent pipe with water; 4) standing and observing the water level in the transparent pipe, wherein the position of the water level when falling back and finally stopping falling is the height position of a specific leakage point of the cooling vertical pipe; the invention prolongs the service life of the blast furnace water-cooling wall, can quickly and accurately position the leakage point position and shortens the overhaul period.
Description
Technical Field
The invention relates to the technical field of ironmaking production, in particular to an operation method for accurately positioning a leakage point of a blast furnace water-cooled wall.
Background
The large-scale steelmaking industry adopts a blast furnace for smelting, a water-cooled wall is arranged in the blast furnace and mainly used for cooling the blast furnace, a circle of the water-cooled wall is arranged along the circumferential direction of the blast furnace and consists of hundreds of cooling vertical pipes, each cooling vertical pipe has a certain service life, leakage can be generated when the cooling vertical pipe is damaged, if the damage cannot be repaired in time, the damage is more and more serious, the normal operation of the blast furnace is finally influenced, and the production progress and the production quality are influenced; the repair work firstly needs to find out specific damaged positions and leakage points, the damaged positions are judged by methods such as a flow judgment method, a pressure-out judgment method and an ignition judgment method at present, but the leakage points cannot be quickly and accurately positioned in actual use, and the overhaul period is long.
Disclosure of Invention
The invention aims to solve the problem that the existing blast furnace water-cooling wall leakage point judgment method cannot quickly and accurately position the leakage point, and provides an operation method for accurately positioning the leakage point of the blast furnace water-cooling wall.
The specific scheme of the invention is as follows: an operation method for accurately positioning a leakage point of a blast furnace water-cooling wall comprises the following steps;
1) detecting the cooling vertical pipe section with leakage according to a blast furnace pressure monitoring system;
2) selecting a transparent rubber tube, connecting the bottom of the transparent rubber tube with a drain valve at the bottom of the leaked cooling vertical tube, and vertically upwards drawing and fixing the transparent rubber tube;
3) opening an exhaust valve and a drain valve at the top of the leaked cooling vertical pipe, and filling water into the pipe from the top end of the transparent rubber pipe to enable the filled water to flow into the cooling vertical pipe through the drain valve, automatically discharging gas in the cooling vertical pipe from the exhaust valve, and finally filling the transparent pipe with water;
4) and (4) standing and observing the water level in the transparent pipe, wherein the position where the water level falls back and finally stops falling is the height position of a specific leakage point of the cooling vertical pipe.
The diameter of the transparent rubber tube is 15-30 mm.
In the step 4), after the water level in the transparent adhesive tape tube is stabilized, standing and observing for 1-2min to determine that the water level does not drop any more.
Compared with the prior art, the invention has the following advantages: 1. the service life of the blast furnace water-cooling wall is prolonged, the position of a leakage point can be quickly and accurately positioned, the maintenance period is shortened, and the production benefit is improved; 2. the operation method is simple and effective, and the implementation difficulty is small.
Drawings
FIG. 1 is a schematic diagram of the operation of the present invention;
in the figure: 1-transparent rubber tube, 2-drain valve, 3-cooling vertical tube, 4-exhaust valve, 5-leakage point position.
Detailed Description
The embodiment is an operation method for accurately positioning a leakage point of a blast furnace water-cooling wall, which comprises the following steps of;
1) detecting the cooling vertical pipe section with leakage according to a blast furnace pressure monitoring system;
2) selecting a transparent rubber tube 1, connecting the bottom of the transparent rubber tube 1 with a drain valve 2 at the bottom of a leaked cooling vertical tube 3, and vertically drawing and fixing the transparent rubber tube 1 upwards;
3) opening an exhaust valve 4 at the top of the leaked cooling vertical pipe 3 and the drain valve 2, and filling water into the pipe from the top end of the transparent rubber pipe 1 to enable the filled water to flow into the cooling vertical pipe 3 through the drain valve 2, automatically discharging gas in the cooling vertical pipe 3 from the exhaust valve 4, and finally filling the transparent pipe 1 with water;
4) and (3) standing and observing the water level in the transparent pipe 1, wherein the position where the water level falls back and finally stops falling is the specific leakage point position 5 of the cooling vertical pipe 3.
The diameter of the transparent rubber tube 1 in the embodiment is 20 mm.
In the step 4) of this embodiment, after the water level in the transparent rubber tube 1 reaches a stable state, the water level is determined not to decrease after standing and observing for 1 min.
Claims (3)
1. An operation method for accurately positioning a leakage point of a blast furnace water-cooling wall is characterized by comprising the following steps: comprises the following steps;
detecting the cooling vertical pipe section with leakage according to a blast furnace pressure monitoring system;
selecting a transparent rubber tube, connecting the bottom of the transparent rubber tube with a drain valve at the bottom of the leaked cooling vertical tube, and vertically upwards drawing and fixing the transparent rubber tube;
opening an exhaust valve and a drain valve at the top of the leaked cooling vertical pipe, and filling water into the pipe from the top end of the transparent rubber pipe to enable the filled water to flow into the cooling vertical pipe through the drain valve, automatically discharging gas in the cooling vertical pipe from the exhaust valve, and finally filling the transparent pipe with water;
and (4) standing and observing the water level in the transparent pipe, wherein the position where the water level falls back and finally stops falling is the height position of a specific leakage point of the cooling vertical pipe.
2. The operation method for accurately positioning the leakage point of the blast furnace water-cooling wall as claimed in claim 1, wherein the operation method comprises the following steps: the diameter of the transparent rubber tube is 15-30 mm.
3. The operation method for accurately positioning the leakage point of the blast furnace water-cooling wall as claimed in claim 1, wherein the operation method comprises the following steps: and in the step 4), after the water level in the transparent adhesive tape tube is stabilized, standing and observing for 1-2min to determine that the water level does not drop any more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423328.4A CN113122666A (en) | 2021-04-20 | 2021-04-20 | Operation method for accurately positioning leakage point of blast furnace water-cooling wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423328.4A CN113122666A (en) | 2021-04-20 | 2021-04-20 | Operation method for accurately positioning leakage point of blast furnace water-cooling wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113122666A true CN113122666A (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110423328.4A Pending CN113122666A (en) | 2021-04-20 | 2021-04-20 | Operation method for accurately positioning leakage point of blast furnace water-cooling wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113122666A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854913A (en) * | 2022-05-19 | 2022-08-05 | 宝武集团鄂城钢铁有限公司 | Method for repairing cooling vertical pipe jump connection in blast furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196803A (en) * | 1996-01-18 | 1997-07-31 | Kawasaki Steel Corp | Method for detecting breakdown position of stave |
| CN101705322A (en) * | 2009-12-30 | 2010-05-12 | 安阳钢铁股份有限公司 | Leak-detecting method for cooling system of blast furnace |
| CN110846452A (en) * | 2019-11-27 | 2020-02-28 | 邯郸钢铁集团有限责任公司 | Device and method for searching leakage point of damaged cooling wall of blast furnace |
-
2021
- 2021-04-20 CN CN202110423328.4A patent/CN113122666A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196803A (en) * | 1996-01-18 | 1997-07-31 | Kawasaki Steel Corp | Method for detecting breakdown position of stave |
| CN101705322A (en) * | 2009-12-30 | 2010-05-12 | 安阳钢铁股份有限公司 | Leak-detecting method for cooling system of blast furnace |
| CN110846452A (en) * | 2019-11-27 | 2020-02-28 | 邯郸钢铁集团有限责任公司 | Device and method for searching leakage point of damaged cooling wall of blast furnace |
Non-Patent Citations (1)
| Title |
|---|
| 王永贵等: "重钢3号高炉检漏实践", 《炼铁技术通讯》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854913A (en) * | 2022-05-19 | 2022-08-05 | 宝武集团鄂城钢铁有限公司 | Method for repairing cooling vertical pipe jump connection in blast furnace |
| CN114854913B (en) * | 2022-05-19 | 2023-06-27 | 宝武集团鄂城钢铁有限公司 | Method for repairing jump-connection of cooling vertical pipe in blast furnace |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210716 |