CN101633968B - Water leak-proof method of damaged cooling wall of blast furnace - Google Patents
Water leak-proof method of damaged cooling wall of blast furnace Download PDFInfo
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- CN101633968B CN101633968B CN2009100348131A CN200910034813A CN101633968B CN 101633968 B CN101633968 B CN 101633968B CN 2009100348131 A CN2009100348131 A CN 2009100348131A CN 200910034813 A CN200910034813 A CN 200910034813A CN 101633968 B CN101633968 B CN 101633968B
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- corrugated tube
- tube
- water
- cooling wall
- blast furnace
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Abstract
The invention relates to a water leak-proof method of a blast furnace, in particular to a water leak-proof method of a damaged cooling wall of the blast furnace, comprising the following steps: cutting off the water-inlet hard tube and water outlet hard tube of a pore passage of the cooling wall, well trimming joints, and welding the two joints by an inner jointing tube; penetrating through the pore passage by a tube passing spring and a corrugated tube, well installing a tube passing joint outside the two joints, leaving an external screw joint on the tube passing joint, connecting a screwed fitting ball valve on the external screw joint, and using a sealing pad and a PTFE tape to seal the gap between the tube passing joint and the corrugated tube; connecting the corrugated tube with external water supply; introducing water to the corrugated tube, injecting materials into the gaps between the corrugated tube and the pore passage of original cooling wall in a full pressure mode, and well closing the screwed fitting ball valve. The invention can regenerate a cooling passage of the cooling wall, and can basically prevent leakage water caused by the damage of the cooling wall from entering into the furnace and permeating into an iron-notch passage, thereby being beneficial for controlling the temperature of the furnace and regulating the airflow in the furnace.
Description
Technical field
The present invention relates to a kind of blast furnace water leak-proof method, a kind of specifically water leak-proof method of damaged cooling wall of blast furnace.
Background technology
If the blast furnace damaged cooling wall is too much, cause a large amount of soft water to enter in the stove, after the iron mouth was opened and tapped a blast furnace, the splash of iron mouth was severe especially, and the mud cover damages easily, and slag iron is many especially, and the big spray of iron mouth can't be flowed out iron.Big especially to the influence of producing like this, can't guarantee to produce normally needs.
Blast furnace can bring very big challenge and difficulty to production operation as if the damage of cooling stave passage occurring and leaking, and the bottom water yield can not be controlled very little, current are little, upper copper cooling stave and cast-iron cooling wall will be little because of the water yield, and cooling performance is poor, and cause new cooling stave scaling loss; Current are big, and a large amount of soft water enters in the stove, and production operation is just very difficult, and the iron mouth also can madly spray, and the stokehold is difficult to iron is gone out out.
In the prior art, water leak-proof method of damaged cooling wall of blast furnace is: by changing pipe, and one section cooling stave passage that short circuit leaks, the cooling stave that leaks connects one road clean circulating water separately, method by control water had both guaranteed that piece damages the cooling performance of cooling stave, guaranteed that also the water yield does not enter in the stove as far as possible.But after existing this water leak-proof method of damaged cooling wall of blast furnace was implemented, damaged cooling wall leaked and can become big, and control water is uncontrollable, control is many, and the duct does not just have current to come out, and control is few, the mad again spray of iron mouth causes a large amount of clean circulating waters to enter in the stove, after the iron mouth is opened and tapped a blast furnace, the splash of iron mouth is severe especially, the mud cover damages easily, and slag iron is many especially, and the big spray of iron mouth can't be flowed out iron, it is big especially to produce influence like this, can't guarantee to produce normally needs.
Summary of the invention
Technical problem to be solved by this invention is: at the shortcoming of above prior art existence, propose a kind ofly can stop cooling stave to enter in the stove and infiltrate in the iron mouth passage, avoid the iron mouth because of spraying the water leak-proof method of damaged cooling wall of blast furnace that can't normally tap a blast furnace greatly because of the water that damage to leak.
The technical scheme that the present invention solves above technical problem is:
Water leak-proof method of damaged cooling wall of blast furnace, carry out according to the following steps:
(1) original cooling stave duct water-in and water-out hard tube is cut off, trim joint, two joints weld with inner connecting tube, and guarantee that the outer filaments tooth is intact;
(2) penetrate in the duct with the poling spring, the other end of poling spring connects by the corrugated tube internal thread, corrugated tube is penetrated in the duct, the first-class more outward poling joint of two joints, leave a nipple on the poling joint, be connected to silk mouthful ball valve in the nipple, used for back grouting, the slit seals with gasket and raw material band between poling joint and the corrugated tube;
(3) corrugated tube and external water source are got up by pipe connection;
(4) in corrugated tube, feed current,,, press full mould material, close silk mouthful ball valve with pneumatic mortar machine to the gap between corrugated tube and the original cooling stave duct by two nipples on the poling joint.
In the step (2), the raw material band usage quantity is: the current that guarantee 0.3～0.5MPa pressure can ooze.In the step (3), inner for fear of raw material band with gasket is long-time can not seal fully after using, outside in the stove coal gas scurry out, corrugated tube uses big latus rectum corrugated tube to be connected with external water source.In the step (4), notice during mud jacking that pressure is suitable, pneumatic mortar machine pressure is set at 5kgN, and when cooling stave outlet duct had grouting material SiC to flow out, the occlusion pressure pulp grinder stopped mud jacking; When there is resistance in pipeline, when the pneumatic mortar machine top hole pressure arrives set(ting)value 5kgN, stop mud jacking.
Advantage of the present invention is: behind the blast furnace cooling wall breakage, because washing away of air-flow suffered in original duct, the duct no longer is the sealing successive, use the corrugated tube of big as far as possible latus rectum to penetrate in the old duct to the duct of breakage, again form new duct, to avoid current to enter in the stove, reach good refrigerative effect.It is logical that water leak-proof method of damaged cooling wall of blast furnace of the present invention can form the cooling stave cooling again, basically can stop cooling stave to enter in the stove and infiltrate in the iron mouth passage because of the water that damage to leak, so just can avoid the iron mouth can't normally tap a blast furnace, also help the control of furnace temperature and the adjusting of gas stream in the stove because of big spray.Cooling is repaired in the duct of repairing, can guarantee that the outer temperature of stove skin is below 85 degree.
Description of drawings
Fig. 1 is the connection diagram of Inlet and outlet water hard tube and inner connecting tube.
Fig. 2 is the connection diagram of Inlet and outlet water hard tube and corrugated tube.
Fig. 3 is the connection diagram of Inlet and outlet water hard tube and nipple.
Embodiment
Embodiment one
Present embodiment is a kind of water leak-proof method of damaged cooling wall of blast furnace, and concrete operations are as follows:
Original cooling stave one root hole road water-in and water-out DN50 hard tube 1 is cut off, trim joint, two guarantees that the outer filaments tooth is intact, as shown in Figure 1 with 2 welding of DN40 inner connecting tube;
After welding is good, penetrate in the duct with L=5000mm poling spring, the other end of poling spring connects by corrugated tube 3 internal threads, corrugated tube 3 is penetrated in the duct, as shown in Figure 2, the first-class again poling joint in two, leave the nipple 4 of a DN25 on the poling joint, be connected to DN25 silk mouth ball valve 5 in the nipple 4, for being in the milk used in the back, the slit seals with gasket and raw material band 6 between poling joint and the corrugated tube 3, till the raw material band usage quantity will guarantee that the current of 0.4MPa left and right sides pressure can ooze;
Final step is exactly to feed an amount of current in corrugated tube 3, by two DN25 nipples 4 of poling joint, to the gap between corrugated tube 3 and the original cooling stave duct, press full SiC mould material (to notice during mud jacking that pressure is suitable with pneumatic mortar machine, too corrugated tube is damaged in conference by pressure), closed DN25 silk mouth ball valve 5, as shown in Figure 3, so just formed an intact cooling channel again, solved cooling stave preferably and leaked the influence of producing.
Behind the blast furnace cooling wall breakage, because washing away of air-flow suffered in original duct, the duct no longer is the sealing successive, use the corrugated tube of big as far as possible latus rectum to penetrate in the old duct to the duct of breakage, again form new duct, enter in the stove, reach good refrigerative effect to avoid current.It is logical that water leak-proof method of damaged cooling wall of blast furnace of the present invention can form the cooling stave cooling again, basically can stop cooling stave to enter in the stove and infiltrate in the iron mouth passage because of the water that damage to leak, so just can avoid the iron mouth can't normally tap a blast furnace, also help the control of furnace temperature and the adjusting of gas stream in the stove because of big spray.
The present invention can also have other embodiment, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the scope of protection of present invention.
Claims (3)
1. water leak-proof method of damaged cooling wall of blast furnace, it is characterized in that: carry out according to the following steps: cut off original cooling stave duct water-in and water-out hard tube (1), trims joint, and two joints weld with inner connecting tube, and guarantee that the outer filaments tooth is intact;
(2) penetrate in the duct with the poling spring, the other end of poling spring connects by the corrugated tube internal thread, corrugated tube is penetrated in the duct, the first-class more outward poling joint of two joints, leave a nipple on the poling joint, be connected to silk mouthful ball valve in the nipple, the slit seals with gasket and raw material band between poling joint and the corrugated tube;
(3) corrugated tube and external water source are got up by pipe connection;
(4) in corrugated tube, feed current,,, press full mould material, close silk mouthful ball valve with pneumatic mortar machine to the gap between corrugated tube and the original cooling stave duct by two nipples on the poling joint.
2. water leak-proof method of damaged cooling wall of blast furnace as claimed in claim 1 is characterized in that: in the described step (2), the raw material band usage quantity is: the current that guarantee 0.3～0.5MPa pressure can ooze.
3. water leak-proof method of damaged cooling wall of blast furnace as claimed in claim 1 is characterized in that: in the described step (3), described corrugated tube uses big latus rectum corrugated tube to be connected with external water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100348131A CN101633968B (en) | 2009-09-04 | 2009-09-04 | Water leak-proof method of damaged cooling wall of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100348131A CN101633968B (en) | 2009-09-04 | 2009-09-04 | Water leak-proof method of damaged cooling wall of blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101633968A CN101633968A (en) | 2010-01-27 |
| CN101633968B true CN101633968B (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100348131A Expired - Fee Related CN101633968B (en) | 2009-09-04 | 2009-09-04 | Water leak-proof method of damaged cooling wall of blast furnace |
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| CN (1) | CN101633968B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107012272A (en) * | 2017-04-26 | 2017-08-04 | 河钢股份有限公司邯郸分公司 | A kind of pipe lining device of blast furnace cooling stave bad water pipe |
| CN113042924A (en) * | 2021-02-01 | 2021-06-29 | 上海二十冶建设有限公司 | Method for quickly installing water system pipeline of blast furnace body |
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2009
- 2009-09-04 CN CN2009100348131A patent/CN101633968B/en not_active Expired - Fee Related
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| CN101633968A (en) | 2010-01-27 |
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Granted publication date: 20101103 Termination date: 20160904 |