CN205803514U - A kind of cooling water pipe of cooling wall of blast furnace is repaired structure and suppresses leak finding device - Google Patents
A kind of cooling water pipe of cooling wall of blast furnace is repaired structure and suppresses leak finding device Download PDFInfo
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- CN205803514U CN205803514U CN201620770374.6U CN201620770374U CN205803514U CN 205803514 U CN205803514 U CN 205803514U CN 201620770374 U CN201620770374 U CN 201620770374U CN 205803514 U CN205803514 U CN 205803514U
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- 238000001816 cooling Methods 0.000 title claims abstract description 235
- 239000000498 cooling water Substances 0.000 title claims abstract description 159
- 239000002184 metal Substances 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 50
- 230000008439 repair process Effects 0.000 claims abstract description 13
- 239000011440 grout Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 125
- 230000000740 bleeding effect Effects 0.000 claims description 21
- 238000010009 beating Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 44
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 38
- 238000000034 method Methods 0.000 description 31
- 229910052742 iron Inorganic materials 0.000 description 18
- 239000000463 material Substances 0.000 description 11
- 239000002002 slurry Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000008234 soft water Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000004899 motility Effects 0.000 description 3
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- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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Abstract
The utility model discloses a kind of cooling water pipe of cooling wall of blast furnace repair structure and suppress leak finding device, belong to blast furnace production technical field.The reparation structure of cooling water pipe of cooling wall of blast furnace of the present utility model, including damaged cooling water pipe and the cooling water inlet end on damaged cooling water pipe top and the cooling water outlet end of bottom；Cooling water inlet end is connected by external cooling tube after folding with outside cooling water outlet end, fills high heat conduction grout blanket in being inside installed with the gap that metal hose, metal hose and damaged cooling water pipe are formed；External cooling tube top has bypass pipe.This utility model efficiently solves blast furnace cooling stave and leaks to repair and cause the unbalanced of Local cooling effect and periphery cooling effect to have impact on the service life of blast furnace cooling stave and the problem that rehabilitation cost is high.
Description
Technical field
This utility model relates to blast furnace production technical field, particularly relates to a kind of cooling water pipe of cooling wall of blast furnace reparation
Structure and suppress leak finding device.
Background technology
Cooling wall seepy question annoyings domestic each big small furnace always.Once leak and directly affect blast furnace stable smooth operation.
And the method not had solves seepy question, if dealing with improperly, may result in copper cooling wall and damaging.In forcing blast furnace to shift to an earlier date
Repair, even overhaul.Therefore, solve seepy question and become the key that current blast fumance index optimizes further.
Most of processing methods that domestic cooling wall leaks are divided into two kinds:
One is that soft water switches to industry water, controls the inflow of industry water, thus controls the water yield draining in stove, it is impossible to
Solve seepy question.Continuing if leaked to expand or serious, the cooling wall water pipe that will leak splits and is in the milk, and so can accelerate
The progress that cooling wall damages.
Two is to carry out wearing metal hose to the copper cooling wall water pipe leaked.It is passed through industry water or soft water after poling, then gives
It is in the milk between metal hose and the raw water tubes worn, thus cools down copper cooling wall.This more advanced, water can be stopped and enter
Enter in stove, provide optimum condition for operation in stove, and the service life of copper cooling wall can be extended to greatest extent.But this
The method of kind causes former damaged cooling tube internal friction resistance relatively big owing to leaking, and metal hose quality is soft, easily in poling process
In damaged, need repeat poling, cause cost higher.
Chinese patent publication No. CN102534078A, the patent documentation of publication date: 2012.07.04 discloses a kind of blast furnace
Cooling wall cooling water pipe replacement method, disconnects breakage cooling water pipe with front and rear part cooling water pipe, by external water pipe again by front
Rear cooling water pipe connects, and makes cooling water cross damaged cooling water pipe and direct circulation.In damaged cooling water pipe, penetrate one simultaneously
Root metal hose, metal hose is connected on the replacement cooling water pipe that communicates with external water source by the seamless steel pipe at two ends, makes
Cooling water in metal hose has independently formed a path, continues to realize refrigerating function.This invention is not affecting other coolings
In the case of the normal water flowing cooling of water pipe, it is achieved that the quick replacement of damaged cooling water pipe, eliminate and leak in blast furnace now
As, it is to avoid furnace temperature declines the coke ratio caused and rises problem, has recovered to damage the refrigerating function of cooling water pipe, it is ensured that cooling wall
Cooling effect, and the service life of cooling wall can be extended.Although the method has recovered to damage the refrigerating function of cooling water pipe,
But metal hose and bypass pipe water source can not synchronize and same flow, cause the unbalanced of Local cooling effect and periphery cooling effect
And have impact on the service life of blast furnace cooling stave.
Utility model content
1. utility model to solve the technical problem that
Local cooling effect and periphery cooling effect is caused for the reparation of leaking of blast furnace cooling stave present in prior art
Unbalanced and have impact on the service life of blast furnace cooling stave, problem that rehabilitation cost is high, this utility model provides a kind of high
Stove cooling wall cooling water pipe is repaired structure and suppresses leak finding device.It can realize low cost reparation and repair after without Local cooling
Unbalanced purpose.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that this utility model provides is:
A kind of cooling water pipe of cooling wall of blast furnace restorative procedure, operating procedure is:
Step one, suppress and look for leakage: suppress equipment with leak detection and the cooling wall water pipe of every layer of blast furnace is suppressed, find leakage
Point；The use of equipment is suppressed in unified special leak detection, it is not necessary to every layer prepares pressuring pump；
Step 2, damaged cooling water pipe block: after confirming leakage point, close the inlet valve of this leakage point, it is to avoid cooling
Water excessively runs off and affects the operation of other cooling tube；And blocking reserved a section up and down and include the broken of this leakage point at leakage point
Damage cooling water pipe, as the carrier wearing metal hose；
Step 3, leak source bypass: will roll over outside the cooling water inlet end on damaged cooling water pipe top and the cooling water outlet end of bottom
After, water inlet end will be cooled down by external cooling tube and cooling water outlet end will bypass, thus not affect the cooling of the cooling wall outside leak source；
Step 4, the threading of damaged cooling water pipe: by rolling over outside the two ends of damaged cooling water pipe, with being slightly less than the soft of caliber
Wooden shot or iron sheet ball are connected to flexible cord, and the other end of flexible cord is fixed, and the soft wooden shot connected or iron sheet bulb stopper enter damaged cooling
Water pipe, then accesses compressed air, soft wooden shot or iron sheet ball is blown into from the upper end of damaged cooling water pipe by compressed air, by
Lower end blows out, thus by flexible cord through damaged cooling water pipe；The effect of impurity in playing lead-in wire and clearing up pipeline；Flexible cord is to soft
The resistance of wooden shot or iron sheet ball is little, avoids the line resistance harmful effect to lead-in wire as far as possible；
Step 5, damaged cooling water pipe wear silk: utilize flexible cord again by iron wire through damaged cooling water pipe；Iron wire intensity is big
In flexible cord, twice lead-in wire, wire strength is ascending, and twice lead-in wire can be successful, it is to avoid the excessive duplication of labour；
Step 6, the poling of damaged cooling water pipe: utilize iron wire that caliber is slightly less than the metal hose of damaged cooling water pipe
Through damaged cooling water pipe；Iron wire intensity is big, can metal hose pull-out will not be disconnected；
Step 7, external water source: by the two ends of metal hose external water inlet pipe and outlet pipe respectively, thus play former leakage
The cooling effect of cooling wall at Dian.
Preferably, step 8, grouting are also included: by the making beating mouth offered at the external part of damaged cooling water pipe toward metal
Space between flexible pipe and damaged cooling water pipe charges high heat conduction grouting material, plays fixing metal hose and conduct the double of heat
Recast is used, it is to avoid metal hose produces frictional property displacement due to the effect of current, and reduces the service life of metal hose.
Preferably, in step 8, two external parts at damaged cooling water pipe offer making beating mouth and venthole respectively, and close
Envelope two ends annular mouth, allows making beating work more smoothly with uniform, it is to avoid during making beating, slurry is internal produces unnecessary aeration slurry
Being uniformly distributed of body.
Preferably, step 7 is by seamless link pipe, the two ends of metal hose are connected external cooling tube form water inlet
Pipe and outlet pipe, allow cooling current synchronize to carry out, improve the synchronicity of cooling effect.
Preferably, the external cooling tube between water inlet pipe and outlet pipe arranges water valve, when needing to synchronize, close water
Valve, it is not necessary to during synchronization, opens water valve, and simple to operate, motility is strong.
Preferably, connect on external cooling tube top and have the valvular bypass pipe of band, play the work of regulation cooling water flow
With, increase the water speed flowing to metal hose, compensate the unbalanced cooling effect caused less than former cooling tube due to caliber, near and
The service life avoiding Local cooling wall different due to cooling effect and to produce the different changes expanded with heat and contract with cold and affect blast furnace；
Pipe connects and i.e. plays connection metal hose and the effect of seamless link pipe, also acts as the effect sealing slurry；Described seamless link pipe
Connect the two ends with metal hose by pipe to connect, and seal on the outer bending tube being fixed on damaged cooling water pipe, i.e. play connection
Metal hose and the effect of seamless link pipe, also act as the effect sealing slurry.
Preferably, described metal hose is corrugated tube, variable folding, and intensity is big, high temperature resistant, and bending is not easy to damage；Described
High heat conduction grouting material is carbonaceous heat conduction material, and heat conductivity is strong, and fineness is little, makes the mating reaction of making beating mouth and venthole more aobvious
Writing, heat conduction material is easily accessible the outer corrugations groove of corrugated tube, and, after being heated, after slight expansion, the combination with corrugated tube is tight
Close, thus heat fixation is effective；Described flexible cord is nylon wire, and other flexible cord intensity relatively is big, and curvature performance is good, and line resistance is little；Institute
State cooling water inlet end, cooling water outlet end and the Jun Waizhe right angle, two ends of damaged cooling water pipe, and have curve transition at folding outside,
Facilitate external pipe and location.
Preferably, described step one is suppressed the method looked for leakage and is:
After A, damping down, produce the three-way valve closing one layer of cooling water pipe of cooling wall to be suppressed, and the entering of cooling wall top layer
Water valve；
Slip spade in B, cooling wall water pipe between every two-layer of cooling wall N shell to cooling wall top layer, each blind plate
Before being inserted in air bleeding valve；
C, confirm blind plate weld seam one enclose full weld after, suppress flexible pipe respectively with following which floor air bleeding valve connect；
1) air bleeding valve with cooling wall N shell～cooling wall N+1 layer is connected, and suppresses cooling wall one layer～cooling wall N+1 layer
Cooling wall water pipe；
2) air bleeding valve with cooling wall N+1 layer～cooling wall N+2 layer is connected, and suppresses the cooling wall water pipe of cooling wall N+2 layer；
3) air bleeding valve with cooling wall N+2 layer～cooling wall N+3 layer is connected, and suppresses the cooling wall water pipe of cooling wall N+3 layer；
4) air bleeding valve with cooling wall N+3 layer～cooling wall top layer is connected, and suppresses the cooling wall water pipe of cooling wall top layer；
D, confirm to suppress after water pipe all connects, check joint and suppress flexible pipe without leaking, after inspection, simultaneously to cold
But the cooling wall water pipe of wall 1～N+1 layer, N+2 layer, N+3 layer and top layer is suppressed；
1) if 1～N+1 layer cooling wall water pipe leaks, wouldn't process, cooling water switches to industry water；Owing to blast furnace is high-rise
Belonging to high-temperature region, cooling water pipe easily produces leak source, and 1 to N shell belongs to relatively low warm area, typically will not produce leak source, when 1 to
When N shell produces leak source, relative to high-temperature region, it is easier to process and use otherwise processed；Cooling water switches to industry water
Purpose be to avoid cooling down excessively running off and affecting the operation of other cooling water pipe of water, the cooling water system of blast furnace is envelope relatively
The system closed, runs off and too much can affect the cooling effect of other cooling water pipe；
2) if N+2 layer cooling wall water pipe leaks, N+2 layer is split；
3) if N+3 layer cooling wall water pipe leaks, N+3 layer is split；
4) if top layer cooling wall water pipe leaks, top layer is split；
Whole suppressing looks for method leakage easily to operate, leak source accurate positioning.
A kind of reparation structure according to cooling water pipe of cooling wall of blast furnace, including damaged cooling water pipe and damaged cooling water pipe
The cooling water inlet end on top and the cooling water outlet end of bottom；Two ends and the cooling water inlet end of described damaged cooling water pipe, cool down out
Water end (W.E.) is all outer folds cooling wall；Described cooling water inlet end is connected by external cooling tube after folding with outside cooling water outlet end；Described broken
High heat conduction grout blanket is filled in being installed with the gap that metal hose, metal hose and damaged cooling water pipe are formed in damaging cooling water pipe,
The external part at damaged cooling water pipe two ends has venthole and making beating mouth, and the external part port at two ends is respectively by 2 pipes
Connecing after connecting with 2 seamless link pipes, 2 seamless link pipes connect with external cooling tube again；Outside between 2 seamless link pipes
Connect and water valve is set on cooling tube；External cooling tube top has bypass pipe.
A kind of cooling water pipe of cooling wall of blast furnace suppresses leak finding device, including main Shui Bao, Fen Shuibao, blind plate, air bleeding valve, suppresses
Cooling wall water pipe within flexible pipe and each layer cooling wall；Connected by connecting tube between described main Shui Bao and point water bag, point water
Bag outwards separates the connection hard tube of parallel connection, connects hard tube again and after suppressing soft pipe connection, suppresses flexible pipe again by the aerofluxus of each layer
Valve and each layer cooling wall water pipe communicate；Top layer cooling wall water pipe arranges water intaking valve, and bottom cooling wall water pipe arranges three-way valve；Every two
Slip spade in the cooling wall water pipe of layer, before each blind plate is inserted in the air bleeding valve of every layer, whole device is looked for Lou accurate, easily grasps
Make, and save the spare part of pressuring pump and the cost of maintenance, most importantly can be in the shortest time, which judges the most accurately
Layer cooling wall leaks, thus saves the repair time, shortens the blast furnace staying time, improves index and the operating rate of blast furnace.
3. beneficial effect
The technical scheme using this utility model to provide, compared with prior art, has the advantages that
(1) a kind of cooling water pipe of cooling wall of blast furnace restorative procedure of the present utility model, by soft wooden shot or iron sheet ball and
Compressed-air actuated cooperation, passes lead-in wire, and soft wooden shot or iron sheet ball are slightly less than caliber, has both played compressed air air pressure to spheroid
The maximized effect of pressure, moreover it is possible to play the effect will taken out of, during poling, the resistance of metal hose due to the impurity penetrated into that leaks
Greatly reduce, it is to avoid secondary or repeat poling, reduce siphunculus cost；
(2) a kind of cooling water pipe of cooling wall of blast furnace restorative procedure of the present utility model, high heat conduction grouting material injects space, rises
To fixing metal hose and the effect of conduction heat；
(3) a kind of cooling water pipe of cooling wall of blast furnace restorative procedure of the present utility model, the cooperation of making beating mouth and venthole is made
With, allow making beating work more smoothly with uniform, it is to avoid during making beating, slurry is internal produces uniformly dividing of unnecessary aeration slurry
Cloth；
(4) a kind of cooling water pipe of cooling wall of blast furnace restorative procedure of the present utility model and structure, the two ends of metal hose
Connect external cooling tube by seamless link pipe, allow cooling current synchronize to carry out, improve the synchronicity of cooling effect；
(5) a kind of cooling water pipe of cooling wall of blast furnace restorative procedure of the present utility model and structure thereof, in water inlet pipe and water outlet
On external cooling tube between pipe, water valve is set, when needing to synchronize, closes water valve, it is not necessary to during synchronization, open water valve, operation letter
Single, motility is strong；
(6) a kind of cooling water pipe of cooling wall of blast furnace restorative procedure of the present utility model and structure, bypass pipe and valve thereof,
Play the effect of regulation cooling water flow, increase the water speed flowing to metal hose, compensate owing to caliber causes less than former cooling tube
Unbalanced cooling effect, near and avoid Local cooling wall different and produce the different changes expanded with heat and contract with cold due to cooling effect
Change and affect the service life of blast furnace；Pipe connects and i.e. plays connection metal hose and the effect of seamless link pipe, also acts as sealing slurry
The effect of body；
(7) a kind of cooling water pipe of cooling wall of blast furnace restorative procedure of the present utility model and structure thereof, corrugated tube mutability is rolled over, by force
Degree is big, high temperature resistant, it is not easy to damage；Carbonaceous heat conduction material heat conductivity is strong, and fineness is little, allows the cooperation of making beating mouth and venthole make
With more significantly, heat conduction material is easily accessible the outer corrugations groove of corrugated tube, and, after being heated, after slight expansion and corrugated tube
Be tightly combined, thus heat fixation is effective；Nylon wire is big relative to other flexible cord intensity, and curvature performance is good；Cooling water inlet end, cold
But water side and the Jun Waizhe right angle, two ends of damaged cooling water pipe, facilitate external pipe and location；
(8) a kind of cooling water pipe of cooling wall of blast furnace restorative procedure of the present utility model and structure thereof, suppress the method looked for leakage
Easily operation, leak source accurate positioning；Owing to blast furnace high level belongs to high-temperature region, cooling water pipe easily produces leak source, and 1 to N shell belongs to
In relatively low warm area, typically will not produce leak source, when 1 to N shell produce leak source time, relative to high-temperature region, be easier process and
Use otherwise processed；Cooling water switches to the purpose of industry water to be to avoid cooling down excessively running off of water and affecting other cooling
The operation of water pipe, the cooling water system of blast furnace is the system of relative closure, runs off and too much can affect the cooling of other cooling water pipe
Effect；
(9) a kind of cooling water pipe of cooling wall of blast furnace of the present utility model repairs structure, efficiently solves blast furnace cooling stave leakage
Water reparation causes the unbalanced of Local cooling effect and periphery cooling effect and have impact on the service life of blast furnace cooling stave, reparation
The problem that cost is high；
(10) a kind of cooling water pipe of cooling wall of blast furnace of the present utility model suppresses leak finding device, and it is Lou accurate to look for, and easily operates,
And save the spare part of pressuring pump and the cost of maintenance, most importantly can be in the shortest time, judge any layer the most accurately
Cooling wall leaks, thus saves the repair time, shortens the blast furnace staying time, improves index and the operating rate of blast furnace.
Accompanying drawing explanation
Fig. 1 cooling wall cooling water pipe scattergram；
Fig. 2 is the schematic diagram that a kind of cooling water pipe of cooling wall of blast furnace of the present utility model repairs structure；
Fig. 3 is the schematic diagram that a kind of cooling water pipe of cooling wall of blast furnace of the present utility model suppresses leak finding device.
Label declaration in schematic diagram: 1, cooling water inlet end；2, cooling water outlet end；3, damaged cooling water pipe；4, metal is soft
Pipe；5, high heat conduction grout blanket；6, external cooling tube；7, seamless link pipe；8, bypass pipe；9, pipe connects；10, cooling wall；11, main water
Bag；12, connecting tube；13, Fen Shuibao；14, hard tube is connected；15, blind plate；16, air bleeding valve；17, Pressure gauge；18, water intaking valve；19、
Three-way valve；20, flexible pipe is suppressed；21, cooling wall one layer；22, cooling wall N shell；23, cooling wall N+1 layer；24, cooling wall N+2 layer；
25, cooling wall N+3 layer；26, cooling wall top layer；30, cooling wall water pipe；31, external part；61, water valve；311, venthole；312、
Making beating mouth.
Detailed description of the invention
For further appreciating that content of the present utility model, in conjunction with accompanying drawing, this utility model is described in detail.
ф 73 × 6: represent caliber 73mm, length 6m, other similar data structure expression of the same race.
Embodiment 1
One 4000m of certain steel plant3Blast furnace is lighted a fire respectively in February, 2005 and May and is gone into operation so far, produces and is constantly in surely
Determine Effec-tive Function, but find that cooling wall exists damage in various degree from the beginning of this year, by investigating in the middle part of current A blast-furnace shaft
Tri-times straight-through cooling water pipes of 8B, 20D, 57A leak, and the most at least three pieces of cooling walls exist drainage.More than 12 layers of A blast furnace is cold
But wall water pipe structure is as it is shown in figure 1, every piece of cooling wall has 4 water pipes, is respectively labeled as A, B, C, D.8B represents the 8th piece of cooling wall
No. B pipe, remainder is analogized.
In view of conventional experience, once there is this damaged condition in blast-furnace body cooling device, blast-furnace body cooling device
Rate of decay will be more and more faster；Blast furnace just comes into furnace retaining and protects the product stage.
According to current production status, for ensureing normal production, extension device uses the cycle, and product side is protected in surely following maintenance of drawing up
Case:
One, prepare before maintenance
1, first blast furnace cooling stave soft water must be separated investigation, substantially judge at 13～14 layers at present.
2, prepare leak detection and suppress equipment, high-pressure pump, metal hose, snap joint, metal hose is installed the pressure of 0～5Mpa
Power table.
3, during periodical repair, water inlet/outlet pipe of cooling wall must first be cut off the water by equipment, and cooling water pipe is suppressed by maintainer's tissue
Experiment, it may be judged whether leak.If without leaking, recover cooling tube, supply water as early as possible.
Two, according to suppressing the leakage point that experiment detects, below scheme is used to overhaul:
1, the cooling wall soft water Inlet and outlet water of leakage point at this is disconnected, lower floor's cooling water outlet end is joined with last layer water inlet pipe
Logical, original design use cooling caliber is ф 73 × 6, then the selection of soft water external cooling tube 6 is ф 76 × 6 seamless steel pipe, and inwall needs
Want pickling processes.One DN65～the manual ball valve of 25 are installed in the middle of external cooling tube 6；3m length one is pressed in advance according to figure paper size
Section blanking, 90 ° of two quarter bend is excessive, and short tube long 1.5m in two prepares some standby.Pipeline is connected by ф 89 × 6～40
Sleeve pipe welding.
2, leak the water supply of cooling wall, use 28.5 meters of platform spraying cooling in late period endless tubes, caliber ф 273 × 10, upper pre-
Filling the seamless steel pipe short tube of some groups of ф 60 × 5, middle installation DN50～25 manual ball valves are controlled, and ф 60 short tube is directly inserted
Entering to leak in cooling wall water inlet pipe, pipeline is connected by the sleeve pipe welding of ф 76 × 6～40.
3, leak the water outlet of cooling wall, use ф 60 × 3.5 seamless steel pipe, put down to 36 meters all the way up from 28.5 meters of platforms
Platform, introduces platform southwest, two, northeast water leg nearby by water outlet；Separately the water outlet at cooling wall installs air bleeding valve.
4, for the ease of maintenance in the future and operation, at 28.5 meters of platform spraying cooling in late period endless tube caliber ф 273 × 10
Bottom install DN150 blowoff valve, each 1 of south, north, totally 2.
Three, leak cooling wall poling
If 57A water pipe breakage is leaked relatively big, a kind of cooling water pipe of cooling wall of blast furnace of the present embodiment is used to repair
Compound recipe method, operating procedure is:
Step one, damaged cooling water pipe block: after confirming leakage point, close the inlet valve of this leakage point, it is to avoid cooling
Water excessively runs off and affects the operation of other cooling tube；And blocking reserved a section up and down and include the broken of this leakage point at leakage point
Damage cooling water pipe 3, as the carrier wearing metal hose；
Step 2, leak source bypass: by outside the cooling water inlet end 1 on damaged cooling water pipe 3 top and the cooling water outlet end 2 of bottom
After folding, by external cooling tube 6, cooling water inlet end 1 and cooling water outlet end 2 are bypassed, thus do not affect the cooling wall outside leak source
Cooling；
Step 3, the threading of damaged cooling water pipe: will roll over outside the two ends of the damaged cooling water pipe 3 of ф 73, soft with ф 70
Matter wooden shot or iron sheet ball are connected to flexible cord, and the other end of flexible cord is fixed, and the soft wooden shot connected or iron sheet bulb stopper are entered damaged cold
But water pipe 3, then access compressed air, soft wooden shot or iron sheet ball are blown from the upper end of damaged cooling water pipe 3 by compressed air
Enter, lower end blow out, thus by flexible cord through damaged cooling water pipe 3；The effect of impurity in playing lead-in wire and clearing up pipeline, in order to
Cleaning thoroughly, can be repeated several times blow pressure, it is also possible to arranges tangent line shovel on spheroid radial line, is cleaned out by impurity；Flexible cord is to soft
The resistance of matter wooden shot or iron sheet ball is little, avoids the line resistance harmful effect to lead-in wire as far as possible；
Step 4, damaged cooling water pipe wear silk: utilize flexible cord again by iron wire through damaged cooling water pipe 3；Iron wire intensity
More than flexible cord, twice lead-in wire, wire strength is ascending, and twice lead-in wire can be successful, it is to avoid the excessive duplication of labour；
Step 5, the poling of damaged cooling water pipe: utilize iron wire by the metal hose 4 of caliber ф 40 through breakage cooling water
Pipe 3；Iron wire intensity is big, can be pulled out by metal hose 4 and will not disconnect；
Step 6, external water source: by the two ends of metal hose 4 external water inlet pipe and outlet pipe respectively, thus play former
The cooling effect of leak source cooling wall.
Embodiment 2
The restorative procedure of a kind of cooling water pipe of cooling wall of blast furnace of the present embodiment, concrete steps, substantially with embodiment 1, are improved
Part is: also include step 7, grouting: by the making beating mouth 312 offered at the external part 31 of damaged cooling water pipe 3 toward metal
Space between flexible pipe 4 and damaged cooling water pipe 3 charges high heat conduction grouting material, plays fixing metal hose and conduct heat
Dual function, it is to avoid metal hose produces frictional property displacement due to the effect of current, and reduces the service life of metal hose,
And output pore 311, and sealing both ends annular mouth at the external part 31 of the other end, allow making beating work more smoothly and uniformly, it is to avoid
During making beating, slurry is internal produces being uniformly distributed of unnecessary aeration slurry.
Embodiment 3
The restorative procedure of a kind of cooling water pipe of cooling wall of blast furnace of the present embodiment, concrete steps, substantially with embodiment 2, are improved
Part be: in step 6 by the two ends of metal hose 4 by seamless link pipe 7 connect external cooling tube 6 formed water inlet pipe and
Outlet pipe, allows cooling current synchronize to carry out, improves the synchronicity of cooling effect.Outside can also be between water inlet pipe and outlet pipe
Connect and water valve 61 is set on cooling tube 6, when needing to synchronize, close water valve, it is not necessary to during synchronization, open water valve, simple to operate, motility
By force.
Embodiment 4
The restorative procedure of a kind of cooling water pipe of cooling wall of blast furnace of the present embodiment, concrete steps, substantially with embodiment 3, are improved
Part is: connects on external cooling tube 6 top and has the valvular bypass pipe 8 of band, play the effect of regulation cooling water flow, increases
Flow to greatly the water speed of metal hose, compensate the unbalanced cooling effect caused less than former cooling tube due to caliber, closely avoid
The service life that Local cooling wall is different due to cooling effect and produces the different changes expanded with heat and contract with cold and affects blast furnace；Pipe connects
I.e. play connection metal hose and the effect of seamless link pipe, also act as the effect sealing slurry；Described seamless link pipe 7 passes through
Pipe connects the two ends connection of 9 and metal hose 4, and seals on the outer bending tube being fixed on damaged cooling water pipe 3, i.e. plays connection gold
Belong to flexible pipe and the effect of seamless link pipe, also act as the effect sealing slurry.Described metal hose 4 can be corrugated tube, variable
Folding, intensity is big, high temperature resistant, and bending is not easy to damage；Described high heat conduction grouting material is carbonaceous heat conduction material, and heat conductivity is strong, Er Qiexi
Spending little, make making beating mouth and the mating reaction of venthole more significantly, heat conduction material is easily accessible the outer corrugations groove of corrugated tube, and
And, after being heated, after slight expansion and being tightly combined of corrugated tube, thus heat fixation is effective；Described flexible cord is nylon wire, phase
Big to other flexible cord intensity, curvature performance is good, and line resistance is little；Described cooling water inlet end 1, cooling water outlet end 2 and damaged cooling water
The Jun Waizhe right angle, two ends of pipe 3, and have curve transition at folding outside, facilitate external pipe and location.
Embodiment 5
The restorative procedure of a kind of cooling water pipe of cooling wall of blast furnace of the present embodiment, concrete steps, substantially with embodiment 4, are improved
Part is:
Cooling water pipe is suppressed experiment suppress the method looked for leakage and be:
After A, damping down, as it is shown on figure 3, produce the three-way valve 19 closing one layer of 1 cooling water pipe of cooling wall to be suppressed and cold
But the water intaking valve 18 of wall top layer 26；
Slip spade 15 in B, cooling wall water pipe 30 between every two-layer of cooling wall N shell 22 to cooling wall top layer 26, often
Before individual blind plate 15 is all inserted in air bleeding valve 16；In the present embodiment, N shell is the 8th layer；
C, confirm that the weld seam one of blind plate 15 encloses full weld after, suppress flexible pipe 20 and connect with which floor air bleeding valve 16 following respectively；
1) air bleeding valve 16 with cooling wall 8 layer 22～cooling wall 9 layer 23 is connected, and suppresses cooling wall one layer 21～cooling wall 9
The cooling wall water pipe 30 of layer 23；
2) air bleeding valve 16 with cooling wall 9 layer 23～cooling wall 10 layer 24 is connected, and suppresses the cooling wall of cooling wall 10 layer 24
Water pipe 30；
3) air bleeding valve 16 with cooling wall 10 layer 24～cooling wall 11 layer 25 is connected, and suppresses the cooling wall of cooling wall 11 layer 25
Water pipe 30；
4) air bleeding valve 16 with cooling wall 11 layer 25～cooling wall top layer 26 is connected, and suppresses the cooling wall of cooling wall top layer 26
Water pipe 30；
D, confirm to suppress after water pipe all connects, check joint and suppress flexible pipe 20 without leaking, after inspection, the most right
The cooling wall water pipe 30 of cooling wall 1～9 layers, 10 layers, 11 layers and top layer is suppressed；
1) if 1～9 layer of cooling wall water pipe 30 leaks, wouldn't process, cooling water switches to industry water；Owing to blast furnace is high
Layer belongs to high-temperature region, and cooling water pipe easily produces leak source, and 1 to 8 layer belongs to relatively low warm area, typically will not produce leak source, when 1
During to 8 layers of generation leak source, relative to high-temperature region, it is easier to process and use otherwise processed；Cooling water switches to industry
The purpose of water is to avoid cooling down excessively running off and affecting the operation of other cooling water pipe of water, and the cooling water system of blast furnace is relative
The system closed, runs off and too much can affect the cooling effect of other cooling water pipe；
2) if 10 layers of cooling wall water pipe 30 leak, 10 layers are split；
3) if 11 layers of cooling wall water pipe 30 leak, 11 layers are split；
4) if top layer cooling wall water pipe 30 leaks, top layer is split；
Whole suppressing looks for method leakage easily to operate, leak source accurate positioning.
The reparation structure that a kind of cooling water pipe of cooling wall of blast furnace method of the present embodiment is formed, as in figure 2 it is shown, include brokenly
Damage cooling water pipe 3 and the cooling water inlet end 1 on damaged cooling water pipe 3 top and the cooling water outlet end 2 of bottom；Described damaged cooling
Two ends and cooling water inlet end 1, the cooling water outlet end 2 of water pipe 3 fold cooling wall 10 all outward；Described cooling water inlet end 1 and cooling down out
Connected by external cooling tube 6 after the outer folding of water end (W.E.) 2；Being installed with metal hose 4 in described damaged cooling water pipe 3, metal hose 4 is with broken
Filling high heat conduction grout blanket 5 in damaging the gap that cooling water pipe 3 is formed, the external part 31 at damaged cooling water pipe 3 two ends has
Venthole 311 and making beating mouth 312, external part 31 port at two ends connects 9 by 2 pipes respectively and connects with 2 seamless link pipes 7
After, 2 seamless link pipes 7 connect with external cooling tube 6 again；On external cooling tube 6 between 2 seamless link pipes 7, water is set
Valve 61；External cooling tube 6 top has bypass pipe 8.
A kind of cooling water pipe of cooling wall of blast furnace of the present embodiment repairs structure, efficiently solves blast furnace cooling stave and leaks reparation
Cause the unbalanced of Local cooling effect and periphery cooling effect and to have impact on the service life of blast furnace cooling stave, rehabilitation cost high
Problem.
A kind of cooling water pipe of cooling wall of blast furnace of the present embodiment suppresses leak finding device, as it is shown on figure 3, include main water bag 11,
Divide water bag 13, blind plate 15, air bleeding valve 16, suppress the cooling wall water pipe 30 within flexible pipe 20 and each layer cooling wall；Described main water
Being connected by connecting tube 12 between bag 11 and point water bag 13, point water bag 13 outwards separates the connection hard tube 14 of parallel connection, connects hard tube
14 again with suppress after flexible pipe 20 connects, suppress the flexible pipe 20 air bleeding valve 16 and each layer cooling wall water pipe 30 again by each layer and communicate；
Top layer cooling wall water pipe 30 arranges water intaking valve 18, and bottom cooling wall water pipe 30 arranges three-way valve 19；The cooling wall water pipe of every two-layer
Slip spade 15 in 30, before each blind plate 15 is inserted in the air bleeding valve 16 of every layer, whole device is looked for Lou accurate, easily operates, and
And save the spare part of pressuring pump and the cost of maintenance, most importantly can be in the shortest time, judge which layer is cold the most accurately
But wall leaks, thus saves the repair time, shortens the blast furnace staying time, improves index and the operating rate of blast furnace.
Schematically being described this utility model and embodiment thereof above, this description does not has restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by it, in the case of without departing from the invention objective, without creative designing with should
Frame mode that technical scheme is similar and embodiment, all should belong to protection domain of the present utility model.
Claims (2)
1. a cooling water pipe of cooling wall of blast furnace repairs structure, it is characterised in that: include that damaged cooling water pipe (3) and breakage are cold
But the cooling water inlet end (1) on water pipe (3) top and the cooling water outlet end (2) of bottom；The two ends of described damaged cooling water pipe (3) and
Cooling water inlet end (1), cooling water outlet end (2) are all outer folds cooling wall (10)；Described cooling water inlet end (1) and cooling water outlet end
(2) connected by external cooling tube (6) after rolling over outward；It is installed with metal hose (4), metal hose in described damaged cooling water pipe (3)
(4) and high heat conduction grout blanket (5), stretching out of breakage cooling water pipe (3) two ends are filled in the gap that formed of damaged cooling water pipe (3)
End (31) has venthole (311) and making beating mouth (312), and external part (31) port at two ends connects (9) by 2 pipes respectively
After connecting with 2 seamless link pipes (7), 2 seamless link pipes (7) connect with external cooling tube (6) again；2 seamless link pipes
(7) on the external cooling tube (6) between, water valve (61) is set；External cooling tube (6) top has bypass pipe (8).
2. a cooling water pipe of cooling wall of blast furnace suppresses leak finding device, it is characterised in that: include main water bag (11), Fen Shuibao
(13), blind plate (15), air bleeding valve (16), suppress the cooling wall water pipe (30) within flexible pipe (20) and each layer cooling wall；Described
Being connected by connecting tube (12) between main water bag (11) and point water bag (13), Fen Shuibao (13) outwards separates the connection hard tube of parallel connection
(14), connect hard tube (14) and again and suppress after flexible pipe (20) connects, suppress flexible pipe (20) pass through again each layer air bleeding valve (16) and
Each layer cooling wall water pipe (30) communicates；Top layer cooling wall water pipe (30) arranges water intaking valve (18), and bottom cooling wall water pipe (30) sets
Put three-way valve (19)；Cooling wall water pipe (30) the interior slip spade (15) of every two-layer, each blind plate (15) is inserted in the aerofluxus of every layer
Before valve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620770374.6U CN205803514U (en) | 2016-07-20 | 2016-07-20 | A kind of cooling water pipe of cooling wall of blast furnace is repaired structure and suppresses leak finding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620770374.6U CN205803514U (en) | 2016-07-20 | 2016-07-20 | A kind of cooling water pipe of cooling wall of blast furnace is repaired structure and suppresses leak finding device |
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| CN205803514U true CN205803514U (en) | 2016-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969924A (en) * | 2016-07-20 | 2016-09-28 | 马鞍山市飞达波纹管制造有限公司 | Blast furnace cooling-wall cooling water pipe repairing method and structure thereof and pressure leakage detection device |
-
2016
- 2016-07-20 CN CN201620770374.6U patent/CN205803514U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969924A (en) * | 2016-07-20 | 2016-09-28 | 马鞍山市飞达波纹管制造有限公司 | Blast furnace cooling-wall cooling water pipe repairing method and structure thereof and pressure leakage detection device |
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Effective date of registration: 20170517 Address after: 243000 Anhui city of Ma'anshan province Jiuhua Mountain Rain Road No. 8 Patentee after: MAANSHAN IRON & STEEL Co.,Ltd. Address before: Bridge Industrial Park, 243000 Anhui city of Ma'anshan province Taibai town of Dangtu County Patentee before: MAANSHAN FEIDA BELLOWS MANUFACTURING Co.,Ltd. |
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