CN101812561B - Blast furnace cooling wall leakage detecting method - Google Patents
Blast furnace cooling wall leakage detecting method Download PDFInfo
- Publication number
- CN101812561B CN101812561B CN 201010142479 CN201010142479A CN101812561B CN 101812561 B CN101812561 B CN 101812561B CN 201010142479 CN201010142479 CN 201010142479 CN 201010142479 A CN201010142479 A CN 201010142479A CN 101812561 B CN101812561 B CN 101812561B
- Authority
- CN
- China
- Prior art keywords
- cooling
- group
- valve
- cooling stave
- water
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a blast furnace cooling wall leakage detecting method, which comprises the following steps that: firstly, longitudinal arranged cooling walls are divided into a plurality of groups along the longitudinal direction, firstly judging the group where the leakage exists when water leakage happens, filling the cooing water pipeline of the cooling wall group to cause that both ends at the top and bottom of the cooling water pipeline are separated with the cooling water pipeline of the adjacent cooling wall group, causing the upper end of the cooling water pipeline of the cooling wall group to be directly communicated with air, detecting the water pressure at the lower end of the cooling water pipeline by a water pressure gauge, reading out the pressure dropping data after the reading of the water pressure gauge stops dropping, working out the height from the water surface of the leakage to the water pressure gauge according to a formula: pressure equals to height multiplied by proportion, and further finding out the specific leakage position of the cooling wall. The method has the advantages of rapid detecting leakage and precisely positioning leakage position.
Description
Technical field
The present invention relates to a kind of technical field of blast furnace ironmaking, especially a kind of blast furnace cooling wall leakage detecting method.
Background technology
Blast furnace is that a kind of transverse section is circular ironmaking shaft furnace.Generally be to adopt steel plate to make furnace shell, build fireproof brick inner lining in the shell.For blast furnace being produced the demand of time cooling, be provided with cooling system in the blast furnace furnace wall, cooling system comprises the cooling stave of some rectangular block shape, cooling stave is cast by cast iron, be provided with cooling water pipeline in the cooling stave, cooling stave is the cooling water pipeline that tandem is arranged and each tandem cooling stave is vertically arranged and runs through, and water coolant enters from the cooling water pipeline lower end under the water pump effect, flow out the upper end, and then forms and cooling water circulation blast furnace is cooled off.
This blast furnace cooling system, cooling performance is relatively good, and what be conducive to produce carries out smoothly.But because the blast furnace work under bad environment, so the situation of breaking and leaking usually appears in cooling duct, so just cause the direct motion of stove ore deposit bad, impact is produced.Simultaneously after leakage accident occurring, need the blowing-out leak detection, to be checkedly again the place of leaking is repaired after finding the place of leaking, and existing leak hunting technology usually needs to rely on veteran workman to judge, have the leak detection overlong time, be difficult to the place of leaking is carried out pinpoint defective.
Summary of the invention
Technical problem to be solved by this invention is, but a kind of quick leak-checking and the accurate blast furnace cooling wall leakage detecting method at positioning leakage place are provided.
In order to solve the problems of the technologies described above, adopted following technical scheme among the present invention:
A kind of blast furnace cooling wall leakage detecting method, its characteristics are, the cooling stave of tandem setting longitudinally is divided into some groups, judge first seepage place group when leaking, and after the cooling water pipeline of this cooling stave group is full of water, make its up and down cooling water pipeline partition of two ends and adjacent cooling stave group, make the cooling water pipeline upper end of this cooling stave group directly communicate with atmosphere, hydraulic pressure is detected with a water pressure gauge in its lower end, after the water pressure gauge reading stops to descend, read the pressure drop data, according to formula: pressure=highly * proportion, can calculate the leakage place water surface to the water pressure gauge height, and then find the concrete seepage of cooling stave position.
More particularly, present method can be, cooling stave with the tandem setting longitudinally is divided into some groups first, every group of cooling stave arranges respectively a upper switch-valve and lower switch-valve on the cooling water pipeline at two ends up and down, on the cooling water pipeline between every group of cooling stave lower end and the lower switch-valve again cross connection a lower bypass pipe is set, a lower by-pass valve is set in the lower bypass pipe, and a water pressure gauge is installed in lower bypass pipe the other end port; Laterally be communicated with on the cooling water pipeline between every group of cooling stave upper end and the upper switch-valve bypass pipe on is set, arrange one in the upper bypass pipe and go up by-pass valve, bypass pipe the other end port directly communicates with the blast furnace outside atmosphere in the order; During the blowing-out leak detection, be full of water in the cooling water pipeline with this tandem cooling stave first, upper switch-valve and the lower switch-valve of each group cooling stave are closed, again the upper by-pass valve of each group and lower by-pass valve are opened, the water pressure gauge place cooling stave group that reading descends is the cooling stave group that leakage occurs, after the water pressure gauge reading that reading descends stops to descend, read water pressure gauge decline numerical value, according to formula: pressure=highly * proportion, can calculate the leakage place water surface to the water pressure gauge height, and then find the concrete seepage of cooling stave position.
As optimization, described every group of cooling stave comprises 11 cooling staves.If every group of cooling stave quantity is excessively low, then can increase whole cooling system cost, can cause simultaneously by artificial preliminary judgement is where to organize to be difficult to accuracy of judgement when cooling stave leaks; If excessive number, the situation of leaking that still is difficult to slow down breakage greatly owing to hydraulic pressure in the time of then can causing this group cooling stave to supply water separately, the overlong time that can cause simultaneously blowing-out to hunt leak, impact is produced.Every group of cooling stave is set to 11, then taken into account simultaneously the requirement of above-mentioned two aspects, makes it namely reduce the cooling system cost, can judge tentatively exactly that the place that leaks is in group; Make again it can effectively alleviate the situation of leaking when supplying water separately, the blowing-out leak detection can be finished within the shorter time.
Than prior art, adopt present method when blowing-out is hunted leak, can accurately determine the cooling stave place group of really leaking, avoid makeing mistakes and the trouble of segmentation leak detection of artificial judgment, also can judge rapidly the exact position, place that leaks by calculating, greatly shorten the leak detection time, improved efficient, do not stopped over the carrying out of subsequent production.
Description of drawings
The structural representation sketch of independent one group of cooling stave in the blast furnace cooling stave that Fig. 1 adopts when being present method implementation.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1: a kind of blast furnace cooling wall leakage detecting method, the cooling stave of tandem setting longitudinally is divided into some groups, every group is made of 11 cooling staves, judge first seepage place group when leaking, and after the cooling water pipeline of this cooling stave group is full of water, make its up and down cooling water pipeline partition of two ends and adjacent cooling stave group, make the cooling water pipeline upper end of this cooling stave group directly communicate with atmosphere, hydraulic pressure is detected with a water pressure gauge in its lower end, after the water pressure gauge reading stops to descend, read the pressure drop data, according to formula: pressure=highly * proportion, can calculate the leakage place water surface to the water pressure gauge height, and then find the concrete seepage of cooling stave position.
Embodiment 2: the cooling stave with the tandem setting longitudinally is divided into some groups first, every group of cooling wall structure as shown in Figure 1, consisted of by 11 cooling staves 1 at every group of cooling stave, every group of cooling stave arranges respectively a upper switch-valve 3 and lower switch-valve 4 on the cooling water pipeline 2 at two ends up and down, on the cooling water pipeline 2 between every group of cooling stave lower end and the lower switch-valve 4 again cross connection a lower bypass pipe 5 is set, a lower by-pass valve 6 is set in the lower bypass pipe 5, and a water pressure gauge 7 is installed in lower bypass pipe 5 the other end ports; Laterally be communicated with on the cooling water pipeline between every group of cooling stave upper end and the upper switch-valve 3 bypass pipe 8 on is set, arrange one in the upper bypass pipe 8 and go up by-pass valve 9, bypass pipe 8 the other end port ones 0 directly communicate with the blast furnace outside atmosphere in the order; During the blowing-out leak detection, be full of water in the cooling water pipeline with this tandem cooling stave first, upper switch-valve 3 and the lower switch-valve 4 of each group cooling stave are closed, again the upper by-pass valve 9 of each group and lower by-pass valve 6 are opened, the water pressure gauge 7 place cooling stave groups that reading descends are the cooling stave group that leakage occurs, after the water pressure gauge reading that reading descends stops to descend, read water pressure gauge decline numerical value, according to formula: pressure=highly * proportion, can calculate the leakage place water surface to the water pressure gauge height, and then find the concrete seepage of cooling stave position.Like this, the mode that relies on the water pressure gauge reading whether to descend, can accurately judge the cooling stave group of seepage, present embodiment is two groups of cooling stave group adjoiners applicable to the leakage area place just, and artificial judgment is difficult to accurately judge the situation of place in the cooling stave group of leaking.
Embodiment 3: during enforcement, blast furnace cooling stave is set to following structure first, the cooling stave 1 that comprises as shown in Figure 1 some rectangular block shape, cooling stave 1 makes for cast iron, be provided with cooling water pipeline 2 in the cooling stave 1, cooling stave 1 is the cooling water pipeline 2 that tandem is arranged and each tandem cooling stave is vertically arranged and runs through, wherein, each tandem cooling stave is divided into some groups, consist of one group by 11 cooling staves 1, be provided with switch-valve 3 and lower switch-valve 4 on the cooling water pipeline 2 at every group of cooling stave two ends about in the of 1; Cooling water pipeline 2 between every group of cooling stave 1 lower end and lower switch-valve 4 is gone back cross connection and is provided with lower bypass pipe 5, is provided with lower by-pass valve 6 in the lower bypass pipe 5, and lower bypass pipe 5 the other end ports are equipped with water pressure gauge 7; Cooling water pipeline between every group of cooling stave upper end and upper switch-valve 3 is gone back cross connection and is provided with bypass pipe 8, is provided with by-pass valve 9 in the upper bypass pipe 8, and upper bypass pipe 8 the other end port ones 0 directly communicate with the blast furnace outside atmosphere.During the blowing-out leak detection, judge the place cooling stave group of leaking by artificial experience first, make each time by-pass valve 6, upper by-pass valve 9 is in closing condition, after each time switch-valve 4 and upper switch-valve 3 all are in open mode, be filled with water in this tandem cooling stave and stop after this place's of leaking cooling stave group is full of, to organize upper switch-valve 3 and the lower switch-valve 4 of cooling stave and close this moment, should organize by-pass valve 9 and lower by-pass valve 6 opens again, after this group water pressure gauge reading stops to descend, read water pressure gauge decline numerical value, according to formula: pressure=highly * and proportion, can calculate the leakage place water surface to the water pressure gauge height, and then find the concrete seepage of cooling stave position.Like this, rely on the artificial judgment place cooling stave group of leaking, can save the judgement time, reduce schedule of operation, present embodiment is in certain group cooling stave mid-way just applicable to the leakage area place, and artificial judgment can accurately be judged the situation that cooling stave leaks of where organizing.
Claims (1)
1. blast furnace cooling wall leakage detecting method, it is characterized in that, the cooling stave of tandem setting longitudinally is divided into some groups, consist of one group by 11 cooling staves (1), every group of cooling stave arranges respectively a upper switch-valve and lower switch-valve on the cooling water pipeline at two ends up and down, on the cooling water pipeline between every group of cooling stave lower end and the lower switch-valve again cross connection a lower bypass pipe is set, a lower by-pass valve is set in the lower bypass pipe, a water pressure gauge is installed in lower bypass pipe the other end port; Laterally be communicated with on the cooling water pipeline between every group of cooling stave upper end and the upper switch-valve bypass pipe on is set, arrange one in the upper bypass pipe and go up by-pass valve, bypass pipe the other end port directly communicates with the blast furnace outside atmosphere in the order; During the blowing-out leak detection, judge the place cooling stave group of leaking by artificial experience first, make each time by-pass valve, upper by-pass valve is in closing condition, after each time switch-valve and upper switch-valve all are in open mode, be filled with water in this tandem cooling stave and stop after this place's of leaking cooling stave group is full of, to organize upper switch-valve and the lower switch-valve of cooling stave and close this moment, should organize by-pass valve and lower by-pass valve opens again, after this group water pressure gauge reading stops to descend, read water pressure gauge decline numerical value, according to formula: pressure=highly * and proportion, can calculate the leakage place water surface to the water pressure gauge height, and then find the concrete seepage of cooling stave position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010142479 CN101812561B (en) | 2010-04-08 | 2010-04-08 | Blast furnace cooling wall leakage detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010142479 CN101812561B (en) | 2010-04-08 | 2010-04-08 | Blast furnace cooling wall leakage detecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101812561A CN101812561A (en) | 2010-08-25 |
| CN101812561B true CN101812561B (en) | 2013-01-16 |
Family
ID=42619929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010142479 Expired - Fee Related CN101812561B (en) | 2010-04-08 | 2010-04-08 | Blast furnace cooling wall leakage detecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101812561B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349720A (en) * | 2015-11-19 | 2016-02-24 | 南京钢铁股份有限公司 | Method for online treatment of water leakage of cooling wall water supply branch pipe of blast furnace hearth |
| CN109321700B (en) * | 2017-07-31 | 2020-11-17 | 宝山钢铁股份有限公司 | Blast furnace body cooling wall damage detection and separation method |
| CN110184402B (en) * | 2018-07-14 | 2021-01-26 | 江阴兴澄特种钢铁有限公司 | Method for rapidly determining specific leakage point of cooling wall of blast furnace on line |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2043851C3 (en) * | 1970-09-04 | 1973-11-22 | Duisburger Kupferhuette, 4100 Duisburg |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10219322A (en) * | 1997-02-05 | 1998-08-18 | Nisshin Steel Co Ltd | Detection of water leakage into blast furnace |
-
2010
- 2010-04-08 CN CN 201010142479 patent/CN101812561B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2043851C3 (en) * | 1970-09-04 | 1973-11-22 | Duisburger Kupferhuette, 4100 Duisburg |
Non-Patent Citations (3)
| Title |
|---|
| JP特开平10-219322A 1998.08.18 |
| 王永贵，刘孝华.重钢3 号高炉检漏实践.《炼铁技术通讯》.2008,(第4期), * |
| 王永贵,刘孝华.重钢3号高炉检漏实践.《炼铁技术通讯》.2008,(第4期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101812561A (en) | 2010-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805810B (en) | Blast furnace cooling structure | |
| CN101812561B (en) | Blast furnace cooling wall leakage detecting method | |
| CN100456009C (en) | Leakage-checking spacing method of blast furnace | |
| CN106498106B (en) | Modified blast furnace soft water closed circulation system and method | |
| CN202163926U (en) | Automatic feeding system | |
| CN104500508A (en) | Cooling circulation system of liquid cooling equipment and cooling method | |
| CN104611491A (en) | Positioning device and method for leakage detection of blast furnace cooling wall | |
| CN105854368B (en) | One kind is without glue pipe type precision plate filter | |
| CN102556382A (en) | Glue filling device | |
| CN110846452B (en) | Device and method for searching leakage points of damaged cooling wall of blast furnace | |
| CN201634695U (en) | Blast furnace cooling structure | |
| CN105443466B (en) | Pipe straightener hydraulic control system for opening cylinder and upper roller compensating cylinder soon | |
| CN107083462A (en) | The blast furnace cooling stave and its processing technology of a kind of multilayer cooling | |
| CN204062424U (en) | A kind of quantitative oil filling device | |
| CN206756404U (en) | Leakage test device for automobile air conditioning system | |
| CN115758624A (en) | Method for prolonging service life of blast furnace waist and furnace belly cooling wall | |
| CN104669569B (en) | A kind of 5 machine twisting mold mechanism hydraulic systems | |
| CN202779612U (en) | Precoated sand mould used for monomer piston ring casting | |
| CN210387563U (en) | Control system of gravity casting machine | |
| CN204401022U (en) | A kind of blast furnace cooling stave leakage detection locating device | |
| CN113122666A (en) | Operation method for accurately positioning leakage point of blast furnace water-cooling wall | |
| CN205190392U (en) | Support cylinder hydraulic system of super large jumbo | |
| CN113618040A (en) | Gearbox valve plate die-casting die, die-casting method and die maintenance method | |
| CN107254559A (en) | A kind of cooling wall and its processing method | |
| CN2481725Y (en) | Blast furnace capable of visual leakage detecting cooling wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20160408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |