CN106521062A - Repairing method of blast furnace cooling wall water cooling system - Google Patents
Repairing method of blast furnace cooling wall water cooling system Download PDFInfo
- Publication number
- CN106521062A CN106521062A CN201611155954.5A CN201611155954A CN106521062A CN 106521062 A CN106521062 A CN 106521062A CN 201611155954 A CN201611155954 A CN 201611155954A CN 106521062 A CN106521062 A CN 106521062A
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- China
- Prior art keywords
- cooling
- water
- water pipe
- blast furnace
- cooling water
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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
- C21B7/10—Cooling; Devices therefor
Abstract
The invention discloses a repairing method of a blast furnace cooling wall water cooling system. The repairing system comprises the steps that a leaking point of a cooling water pipe is determined firstly, a water inlet valve and a water outlet valve of a corresponding column of cooling pipeline are closed, a metal hose is connected with the portion, at the leaking point, of the cooling water pipe in a short circuit mode, then the water inlet valve and the water outlet valve are opened, and water supply of the cooling pipeline is recovered; and the portion, at the leaking point, of the cooling water pipe is connected with an external water source, specifically, the water flow direction of the portion, at the leaking point, of the cooling water pipe is opposite to that of the other cooling water pipes of the same column of cooling pipeline. The repairing method is simple and easy, convenient and fast to implement, the cooling capacity of a cooling wall can continue to be maintained under the condition that the cooling water pipe is damaged, the cooling intensity is guaranteed, the service life of the cooling wall is prolonged, and normal production of a blast furnace is maintained.
Description
Technical field
The present invention relates to a kind of restorative procedure of blast furnace cooling stave water cooling system, belongs to blast furnace cooling stave reparation transformation skill
Art field.
Background technology
Blast furnace cooling stave is the important water-cooled part of blast furnace lining, the portion such as shaft, furnace bosh, bosh, cupola well installed in blast furnace
Position, can effectively prevent furnace shell to be heated and burn red.Blast furnace cooling stave is typically cooled down using soft water closed circulating at present, in cooling wall
The cooling water pipe of several series connection is inside installed, its way of supplying water is taken closed cycle, carries out cooling from bottom to top to reach cooling
The cooling effect of wall.Blast furnace in normal productive process, due to by the corrosion, wear of furnace charge, the change of furnace temperature and stove skin with
Easily there is the phenomenon of local damage in the impact of the factors such as the thermal stress effect of cooling wall, cooling wall and cooling water pipe, by
In cooling water pipe for being connected in series, once rupture leak occurs in wherein certain section cooling wall water pipe, permutation cooling line will be caused
Affect.If the process that carries out cutting off the water supply to the row cooling line will be unable to reach intensity of cooling requirement, jeopardize blast-furnace equipment safety；If no
Carry out cutting off the water supply processing and then cause blast furnace leak, have a strong impact on conditions of blast furnace and ferrum mouth safety.
The content of the invention
In view of this, the present invention provides a kind of restorative procedure of blast furnace cooling stave water cooling system, the method is simple,
It is convenient and swift, the cooling capacity of cooling wall can be continued in the case where breakage occurs in cooling water pipe, it is ensured that intensity of cooling,
Extend the service life of cooling wall, maintain the normal production of blast furnace.
For solving above technical problem, repairing using a kind of blast furnace cooling stave water cooling system is the technical scheme is that
Compound recipe method, it comprises the following steps：
(1) determine the leakage point position of cooling water pipe, by the Inlet and outlet water valve closing of the row cooling line, with metal hose pair
Leak source cooling water pipe carries out short-circuit type connection, then opens Inlet and outlet water valve and the row cooling line is resumed water supply；
(2) leak source cooling water pipe connects external water source, and the water (flow) direction of leak source cooling water pipe is cold with residing same column
But the water (flow) direction of other cooling water pipes of pipeline is reverse.
Further, equipment is suppressed using leak detection in step (1) to suppress cooling water pipe, determine cooling water pipe
Leakage point position.
Further, the hydraulic pressure and output for adjusting external water source in step (2) is not leaked to leak source cooling water pipe
Water.
Preferably, in step (1), the internal diameter of metal hose is equal with the internal diameter of cooling water pipe.
Preferably, in step (1) metal hose length 3～5cm longer than the length of cooling water pipe.
Preferably, in step (1), metal hose is threadedly coupled with cooling water pipe joint.
Preferably, in step (1), metal hose is provided with sealing ring with the junction of cooling water pipe.
The present invention substitutes the cooling water pipe of leak with metal hose, it is ensured that the normal water flowing of cooling line, while adopting
The mode for pouring in down a chimney water carries out water flowing to leak source cooling water pipe, for water to the water with normal cooling line to conversely, external
The pressure at water source is greatly reduced, it is to avoid the leak of leak source cooling water pipe, so as to maintaining the cold of cooling wall water cooling system
But ability, it is ensured that its intensity of cooling, extends the service life of cooling wall, maintains the normal production of blast furnace.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment
The present invention is described in further detail.It should be pointed out that be only the preferred embodiment of the present invention below, it is following preferred
Embodiment is not construed as limitation of the present invention, and protection scope of the present invention with claim limited range should be
It is accurate.For those skilled in the art, without departing from the spirit and scope of the present invention, if can also make
Dry improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
A kind of restorative procedure of blast furnace cooling stave water cooling system, it comprises the following steps：
(1) equipment is suppressed using leak detection to suppress cooling water pipe, determine the leakage point position of cooling water pipe, then will leakage
The Inlet and outlet water valve closing of the row cooling line residing for water cooling water pipe, is carried out to leak source cooling water pipe with metal hose short
Road formula connection, joint arrange sealing ring using threaded connection, and the wherein internal diameter of metal hose and the internal diameter of cooling water pipe is equal,
Length 3～5cm longer than the length of cooling water pipe, then opens Inlet and outlet water valve and the row cooling line is resumed water supply；
(2) leak source cooling water pipe connects external water source, and the water (flow) direction of leak source cooling water pipe is cold with residing same column
But the water (flow) direction of other cooling water pipes of pipeline reversely, adjusts the hydraulic pressure and output at external water source to leakage according to water leakage situation
At point, cooling water pipe is water-tight.
Sichuan Desheng iron-smelter 3# blast furnace cooling staves are that 5 sections of tandems supply water, and when stove labour is close to middle and late stage, are found
Cooling wall water leakage situation is serious, cooling water pipe is repaired using said method, is successfully in charge of 23, constantly breaks in cooling wall
The normal production of blast furnace is maintained in the case of damage.
Claims (7)
1. a kind of restorative procedure of blast furnace cooling stave water cooling system, it is characterised in that：The method comprising the steps of：(1)
Determine the leakage point position of cooling water pipe, the Inlet and outlet water valve closing of the row cooling line is cooled down to leak source with metal hose
Water pipe carries out short-circuit type connection, then opens Inlet and outlet water valve and the row cooling line is resumed water supply；(2) leak source cooling water pipe
Connect external water source, the current of the water (flow) direction of leak source cooling water pipe and other cooling water pipes of the cooling line of residing same column
Direction is reverse.
2. the restorative procedure of a kind of blast furnace cooling stave water cooling system according to claim 1, it is characterised in that：The step
Suddenly equipment is suppressed using leak detection in (1) to suppress cooling water pipe, determine the leakage point position of cooling water pipe.
3. the restorative procedure of a kind of blast furnace cooling stave water cooling system according to claim 1, it is characterised in that：The step
Suddenly in (1), the internal diameter of metal hose is equal with the internal diameter of cooling water pipe.
4. the restorative procedure of a kind of blast furnace cooling stave water cooling system according to claim 1, it is characterised in that：The step
Suddenly the length of metal hose 3～5cm longer than the length of cooling water pipe in (1).
5. the restorative procedure of a kind of blast furnace cooling stave water cooling system according to claim 1, it is characterised in that：The step
Suddenly in (1), metal hose is threadedly coupled with cooling water pipe joint.
6. the restorative procedure of a kind of blast furnace cooling stave water cooling system according to claim 1, it is characterised in that：The step
Suddenly in (1), metal hose is provided with sealing ring with the junction of cooling water pipe.
7. the restorative procedure of a kind of blast furnace cooling stave water cooling system according to claim 1, it is characterised in that：The step
Suddenly the hydraulic pressure and output for adjusting external water source in (2) is water-tight to leak source cooling water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155954.5A CN106521062A (en) | 2016-12-14 | 2016-12-14 | Repairing method of blast furnace cooling wall water cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155954.5A CN106521062A (en) | 2016-12-14 | 2016-12-14 | Repairing method of blast furnace cooling wall water cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106521062A true CN106521062A (en) | 2017-03-22 |
Family
ID=58340661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611155954.5A Pending CN106521062A (en) | 2016-12-14 | 2016-12-14 | Repairing method of blast furnace cooling wall water cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106521062A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058658A (en) * | 2017-04-19 | 2017-08-18 | 山西太钢不锈钢股份有限公司 | Blast furnace copper cooling plate leakage check-up method and blocking method is cut online |
| CN112111619A (en) * | 2019-06-21 | 2020-12-22 | 上海梅山钢铁股份有限公司 | On-line processing method for damage of soft water cooling wall |
| 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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058658A (en) * | 2017-04-19 | 2017-08-18 | 山西太钢不锈钢股份有限公司 | Blast furnace copper cooling plate leakage check-up method and blocking method is cut online |
| CN112111619A (en) * | 2019-06-21 | 2020-12-22 | 上海梅山钢铁股份有限公司 | On-line processing method for damage of soft water cooling wall |
| 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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Application publication date: 20170322 |