CN107828926A - A kind of multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down - Google Patents
A kind of multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down Download PDFInfo
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- CN107828926A CN107828926A CN201711050658.3A CN201711050658A CN107828926A CN 107828926 A CN107828926 A CN 107828926A CN 201711050658 A CN201711050658 A CN 201711050658A CN 107828926 A CN107828926 A CN 107828926A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
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Abstract
The invention discloses a kind of multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down, belong to smelting molten iron technical field.This method includes：Step S101, anchoring piece is set in substrate, then pours into a mould the resistance to material of plate face, the thickness of the resistance to material of plate face is more than the height of anchoring piece, forms baffle plate, dried for standby；Step S102, selected distance pitting inlet upstream, baffle plate is tilted into insertion tap drain, baffle plate and tap drain latasuture gap are filled up compacting by the wherein resistance to face of plate face towards iron mouth, and with yellow sand；Step S103, tapping outlet is beaten, when tapping a blast furnace more than slag or during molten iron flow difference, motionless baffle plate, slag iron is discharged into dry pit by slag runner；Step S104, when molten iron flow switchs to normal, baffle plate is detached, molten iron crosses skimming tool and enters tank.The present invention can safely discharge the slag iron that multiple wind initial flux is poor after banking, reduce furnace heat consumption, accelerate blast furnace recovering process, do sufficient preparation for the discharge of molten iron next time, ensure being smoothed out for blast furnace recovering process.
Description
Technical field
The invention belongs to smelting molten iron technical field, more specifically to multiple wind after a kind of large blast furnace long term blowing-down
Initial stage slag sluicing system method.
Background technology
Skimming tool (being commonly called as sand mouth) is the place of slag and molten iron separation during tapping a blast furnace, from the slag and iron of iron mouth out
Water, because its density is different, slag is floated over above molten iron.After skimming tool is full of molten iron, because pitting connects with sow through passageway,
Molten iron can pass through.Slag is obstructed by baffle plate, it is impossible to flows in pitting, so as to complete slag iron shunting work.After blast furnace recovers,
The first more difficult grasp of stove iron tapping duration, such as normally carry out iron, tank can be entered by skimming tool, but beat that tapping outlet is out of turn, and slag is more
Iron is few or during the high slag iron poor fluidity of furnace temperature, then the safety of entail dangers to skimming tool, when slag iron can cause when skimming tool separates
The blocking of skimming tool, the normal slag iron in stokehold is influenceed, it is general to build one of sand bar with the yellow sand of humidity using in the main hole of skimming tool,
The bad slag iron of mobility is introduced into slag runner, this method can effectively solve first slag iron emission problem after multiple wind, but work as slag iron
After mobility takes a turn for the better, it is impossible in time slag iron is changed to drain into tank by skimming tool, it is necessary to after stifled iron notch, manual cleaning pitting
Yellow sand, just by skimming tool normal discharge when the second stove taps a blast furnace, further, since moist yellow sand is under the high temperature action of molten iron, water
Divide Quick-gasifying, be easy to cause slag chute to be blown out, cause molten iron to flash, operator can be injured, therefore potential safety hazard be present.
Through retrieval, patent document 1：Chinese patent CN201110414417.9 discloses multiple wind after a kind of banking
When slag iron and skimming tool separation method：(1) with one block of steel plate, oblique cutting enters pitting, steel plate top and lintel between lintel and major groove
Upper surface and the connection linear contact lay of side, the connection linear contact lay of steel plate bottom and pitting bottom surface and side, steel plate enter major groove
The entrance of pitting blocks；(2) with stemming by the gap sealing of steel plate and pitting side；(3) it is located at steel plate side use in major groove to do
Dry yellow sand completely spreads to form yellow sand dam, yellow sand height of dam degree to lintel, yellow sand dam thickness 0.5m；(4) it is multiple after banking
During wind, the bad slag iron of initial fluidity is from the slag runner outflow above major groove, into dry pit；(5) when mobility takes a turn for the better
Afterwards, steel plate is hung with driving, steel plate is extracted, that is, realize that slag iron is discharged by skimming tool.But due to the patent light plate from
Oblique cutting enters pitting between lintel and major groove, and once steel plate extracted, dry yellow sand and stemming part enter directly into pitting
Interior, the dosage of yellow sand and stemming is larger (according to yellow sand dam thickness be 0.5m and the width calculation of major groove obtains), and is not easy
Clean out, increase the risk of skimming tool blocking；In addition, the yellow sand dried is not easy heap modeling, take time and effort, it is strong to add work
Degree, though after heap modeling is got up, under gravity also easily it is slack and undisciplined fall, influence the follow-up tapping process that taps a blast furnace, and then influence high
Stove recovering process.
The content of the invention
1. to solve the problems, such as
For during multiple wind, causing slag using steel plate, stemming and the yellow sand of drying heap building structure after existing banking
Iron separates with skimming tool, and the risk that skimming tool blocks is big, and the problem of influence blast furnace recovering process, the present invention provides a kind of large-scale
Wind slag sluicing system at initial stage method is answered after banking, slag iron during wind is answered after safety dumping banking, reduces labor
Momentum, accelerate blast furnace recovering process, ensure being smoothed out for ironmaking.
2. technical scheme
In order to solve the above problems, the technical solution adopted in the present invention is as follows：
Multiple wind slag sluicing system at initial stage method after a kind of large blast furnace long term blowing-down of the present invention, including step in detail below：
Step S101, choose steel plate and anchoring piece be set as substrate, and in the side of substrate, then pour into a mould the resistance to material of plate face,
The thickness of the resistance to material of plate face is more than the height of anchoring piece, forms baffle plate, dried for standby；
Step S102, selected distance pitting inlet upstream 200-300mm position, baffle plate is tilted into insertion tap drain, wherein
Baffle plate and tap drain latasuture gap are filled up compacting by the resistance to face of plate face towards iron mouth, and with the yellow sand that moisture is 8%-15%, and
Frame gas fire is toasted；
Step S103,150,000-20 ten thousand m are had reached in air quantity3When, tapping outlet is beaten, when tapping a blast furnace more than slag or molten iron flow
During property difference, motionless baffle plate, slag iron is discharged into dry pit by slag runner；
Step S104, when molten iron flow switchs to normal, baffle plate is detached by driving, hanger, molten iron crosses skimming tool
Enter tank.
In a kind of possible embodiment of the present invention, the steel plate uses thickness as 10-15mm Q235-B or more
Rank material is made, and its width is less than tap drain width 10-20mm, it is contemplated that the load-bearing situation of whole baffle plate, as substrate
Steel plate not only to bear itself, the weight of anchoring piece and the resistance to material of plate face, and baffle plate is placed in tap drain, by more than 1000 DEG C
The heat radiation of molten iron, therefore with heat resistance well, be not likely to produce deformation, ensure that performance is good.
In a kind of possible embodiment of the present invention, the head of the anchoring piece is in Y types, and its effective depth is 20-
30cm, the setting spacing of anchoring piece is 300*300mm, and anchoring piece can form skeleton in the resistance to material of plate face, its Y types head, enter
One step increase with the contact area of the resistance to material of plate face, while the spacing of anchoring piece be not easy it is excessive, more than 300*300mm, then in plate face
The early solidification of resistance to material, due to tension force effect, the resistance to material of plate face easily ftractures, although too small can play the firm of the enhancing resistance to material of plate face
Property, but it is the increase in production cost.
In a kind of possible embodiment of the present invention, some through holes are offered on the steel plate, anchoring piece includes the body of rod
And nut, the body of rod of anchoring piece pass through through hole, both sides respectively have a nut to be fixed, if anchoring piece is consolidated by the way of welding
It is scheduled on substrate, easily corrodes weld seam containing a small amount of material in the resistance to material of plate face, and the heat radiation of molten iron is made more than 1000 DEG C
Under, weld stress exacerbates the strain cracking of weld seam, therefore the body of rod is fixed using two nuts, and anchoring piece is substantially not
Thermal radiation influences.
In a kind of possible embodiment of the present invention, the resistance to material of plate face is consistent with the resistance to material of tap drain, the resistance to material of plate face
Thickness is 45-55mm, is high alumina castable.The resistance to material of plate face directly contacts that it is necessary to have good patience with molten iron and slag iron
Performance, while in view of at least using more than 2-3 times, the thermal shock resistance of the resistance to material of plate face, corrosion resistance are good, and high alumina castable can
To meet the needs of using.
In a kind of possible embodiment of the present invention, the inclined angle of baffle plate is 60-70 °, and the top of baffle plate is supported
Lean against on pole, it is on the one hand unsuitable excessive also unsuitable too small for the angle of inclination of baffle plate, it is multiple mainly after banking
During wind, the situation such as mobility of the first stove molten iron can not make accurate judgement, only beat tapping outlet, and slag iron flows out from iron mouth,
Slag iron mobility can be observed, if inclination angle is too small, during slag iron poor fluidity, excessive slag iron can be taken when taking out baffle plate out of；If
Inclination angle is excessive, and the gap between baffle plate and tap drain is not easy to be filled up by yellow sand.
In a kind of possible embodiment of the present invention, the yellow sand grain composition is：5-3mm 40wt%-60wt%；
3-1mm 20wt%-30wt%；1-0mm 20wt%-30wt%, the sand of three kinds of particles mix, and add 8%-15%
Water, yellow sand has heap plasticity well.
In a kind of possible embodiment of the present invention, hanger is provided with the baffle plate, when the good fluidity of slag iron,
Hanger is hooked in driving, and baffle plate is sling.
3. beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down of the present invention, make has the resistance to material of plate face first
Baffle plate, and baffle plate is placed in the segment distance of pitting inlet upstream one, the yellow sand for being 8%-15% with water content fills up compacting baffle plate
With tap drain latasuture gap, the slag iron at multiple wind initial stage after banking can be safely discharged, furnace heat consumption is reduced, accelerates
Blast furnace recovering process, sufficient preparation is done for the discharge of molten iron next time, ensures being smoothed out for ironmaking；
(2) multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down of the present invention, it is contemplated that the load-bearing of whole baffle plate
Situation, the steel plate as substrate not only to bear itself, the weight of anchoring piece and the resistance to material of plate face, and baffle plate is placed in tap drain,
By the heat radiation of more than 1000 DEG C of molten iron, baffle plate has heat resistance well, is not likely to produce deformation, ensures that performance is good
It is good；
(3) multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down of the present invention, anchoring piece can be in the resistance to material of plate face
Middle formation skeleton, its Y types head, further increase and the contact area of the resistance to material of plate face, while the spacing of anchoring piece is 300*
300mm, the fastness of the enhancing resistance to material of plate face on the one hand can be played, the resistance to material of another aspect plate face is tightly combined, not easy to crack, is made
Grown with the time；
(4) multiple wind slag sluicing system at initial stage method, anchoring piece use two nuts pair after large blast furnace long term blowing-down of the present invention
The body of rod is fixed, and thermal radiation does not influence anchoring piece substantially, and baffle plate can recycle 2-3 times, reduce cost of manufacture；
(5) multiple wind slag sluicing system at initial stage method, the resistance to material of plate face are poured using High-Alumina after large blast furnace long term blowing-down of the present invention
Material feeding, there is good thermal shock resistance, corrosion resistance, can recycle more than 2-3 times, meet the needs of using；
(6) multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down of the present invention, 60-70 ° of baffle plate angle of inclination are high
After stove long term blowing-down during multiple wind, during slag iron poor fluidity, excessive slag iron will not be taken when taking out baffle plate out of, while the angle is yellow sand
Heap modeling provides support, is easy to the gap between baffle plate and tap drain to be filled up by yellow sand；
(7) multiple wind slag sluicing system at initial stage method, its yellow sand grain composition used after large blast furnace long term blowing-down of the present invention
For：5-3mm；3-1mm；1-0mm, the sand of three kinds of particles mix, and add 8%-15% water, and yellow sand has well
Heap plasticity, for the sand of the grain composition in 60-70 ° of domatic heap modeling, angle of friction is larger in addition, under the washing away of molten iron,
It is not easy to slack and undisciplined.
Brief description of the drawings
Slag sluicing system structure chart Fig. 1 is answers wind after large blast furnace long term blowing-down of the present invention when；
Fig. 2 is the baffle arrangement schematic diagram of the present invention；
In figure：1st, Tie Kou；2nd, tap drain；3rd, flashboard；4th, iron runner；5th, baffle plate；5.1st, substrate；5.2nd, anchoring piece；5.3rd, plate face
Resistance to material；6th, pole；7th, hanger.
Embodiment
Accompanying drawing hereafter with reference to the detailed description of the exemplary embodiment of the present invention, the accompanying drawing forms one of description
Point, show the enforceable exemplary embodiment of the present invention as example in the figure.
Slag sluicing system structural representation Fig. 1 is answers wind after large blast furnace long term blowing-down of the present invention when, Fig. 2 is baffle plate of the present invention
Structural representation.As shown in Figure 1 and Figure 2, slag iron falls into tap drain 2 from the outflow of iron mouth 1, is accumulated before baffle plate 5, such as molten iron stream
Dynamic property is normal, and iron water amount is more, when accumulate arrive under tap drain 2 along when, take out baffle plate 5 and allow molten iron to pass through flashboard 3 and enter in iron runner 4.
What deserves to be explained is inventor have passed through substantial amounts of experimental study, and by largely analyzing to obtain the present invention
Technical scheme：1) choose steel plate and anchoring piece is set as substrate, and in the side of substrate, then pour into a mould the resistance to material of plate face, plate face
The thickness of resistance to material is more than the height of anchoring piece, forms baffle plate, dried for standby；2) selected distance pitting inlet upstream 200-300mm
Position, by baffle plate tilt insertion tap drain, the wherein resistance to face of plate face is towards iron mouth, and the yellow sand for being 8%-15% with moisture
Baffle plate and tap drain latasuture gap are filled up into compacting；3) 150,000-20 ten thousand m, are had reached in air quantity3When, tapping outlet is beaten, the slag when tapping a blast furnace
During more or molten iron flow difference, motionless baffle plate, slag iron is discharged into dry pit by slag runner；4) when molten iron flow switchs to normal,
Baffle plate is detached by driving, hanger, molten iron crosses skimming tool and enters tank.
In patent document 1, its steel plate oblique cutting between lintel and major groove enters pitting, and major groove is entered entering for pitting by steel plate
Mouthful block, with stemming by steel plate and the gap sealing of pitting side, be located at steel plate side in major groove and completely spread shape with dry yellow sand
Into yellow sand dam, yellow sand height of dam degree to lintel, yellow sand dam thickness 0.5m, and those skilled in the art is known, the patent is in order to keep away
The yellow sand for exempting from humidity occurs blowing out phenomenon in slag chute, employs dry yellow sand to pile up yellow sand dam, but the yellow sand dried
Heap plasticity is particularly poor, such as the sand dune on desert, it is therefore desirable to which the inclination angle of steel plate is smaller, domatic heap of the yellow sand along steel plate
Product, under molten iron percussion, yellow sand is easily slack and undisciplined, directly injures the safety of steel plate；In addition, yellow sand in patent document 1 and
Stemming dosage is big, and after steel plate is taken away, yellow sand and stemming part are directly entered pitting, and are mingled with molten iron, can not be cleared up,
The blocking of pitting may be caused.
By the technical scheme of the invention described above, the baffle plate for needing that there is the resistance to material of plate face is made first, and baffle plate is placed in
The segment distance of pitting inlet upstream one, the yellow sand for being 8%-15% with water content fill up compacting baffle plate and tap drain latasuture gap, and yellow sand
Dosage it is few, when taking baffle plate away, a small amount of yellow sand is fallen directly into tap drain, rather than in pitting, and method of the invention can be with
The slag iron at multiple wind initial stage after banking is safely discharged, furnace heat consumption is reduced, accelerates blast furnace recovering process, under
Sufficient preparation is done in molten iron discharge, ensures being smoothed out for ironmaking.
Embodiment 1
Multiple wind slag sluicing system at initial stage method after the large blast furnace long term blowing-down of the present embodiment, including step in detail below：
Step S101, steel plate is chosen as substrate, and steel plate uses thickness as 10mm Q235-B or more rank material systems
Form, its width is less than tap drain width 10mm, and sets anchoring piece in the side of substrate, and the head of anchoring piece is in Y types, and it has
Effect height (air line distance between 2 points) is 30cm, and the setting spacing of anchoring piece is 300*300mm, and it is resistance to then to pour into a mould plate face
Material, the resistance to material of plate face is consistent with the resistance to material of tap drain, and the thickness of the resistance to material of plate face is 50mm, is high alumina castable, forms baffle plate, dries
It is stand-by；
Step S102, selected distance pitting inlet upstream 300mm position, baffle plate is tilted into insertion tap drain, baffle plate tilts
Angle be 60 °, the top of baffle plate is resisted against on pole, the wherein resistance to face of plate face towards iron mouth, and with moisture be 10%
Yellow sand baffle plate and tap drain latasuture gap are filled up into compacting, yellow sand grain composition is：5-3mm 40wt%；3-1mm 30wt%；1-
0mm30wt%；
Step S103, the furnace condition recovery after long term blowing-down is largely limited by stokehold slag iron emission behaviour, is high
Stove can one of key factor of quick-recovery and furnace condition recovery quality soon, select the time of tapping outlet more crucial, opening is too early,
Because slag iron burden is less in stove, do not increased plus slag iron temperature in the short time, opening latter aspect slag iron discharge get up compared with
For difficulty, another aspect furnace heat also largely loses, and this will directly influence molten iron discharge next time,
Therefore 150,000 m are had reached in air quantity3When, tapping outlet is beaten, it is motionless when tapping a blast furnace more than slag or during molten iron flow difference
Baffle plate, slag iron are discharged into dry pit by slag runner；
Step S104, when molten iron flow switchs to normal, by driving a vehicle, the hanger hooked on baffle plate detaches baffle plate, molten iron
Cross skimming tool and enter tank.
Embodiment 2
Multiple wind slag sluicing system at initial stage method after the large blast furnace long term blowing-down of the present embodiment, including step in detail below：
Step S101, steel plate is chosen as substrate, and steel plate uses thickness as 12mm Q235-B or more rank material systems
Forming, its width is less than tap drain width 20mm, and some through holes are offered on its light plate, and anchoring piece includes the body of rod and nut,
The body of rod of anchoring piece passes through through hole, and both sides respectively have a nut to be fixed, and the head of anchoring piece is in Y types, (2 points of its effective depth
Between air line distance) be 30cm, the setting spacing of anchoring piece is 300*300mm, then pour into a mould the resistance to material of plate face, the resistance to material of plate face with
The resistance to material of tap drain is consistent, and the thickness of the resistance to material of plate face is 50mm, is high alumina castable, forms baffle plate, dried for standby；
Step S102, selected distance pitting inlet upstream 250mm position, baffle plate is tilted into insertion tap drain, baffle plate tilts
Angle be 70 °, the top of baffle plate is resisted against on pole, the wherein resistance to face of plate face towards iron mouth, and with moisture be 15%
Yellow sand baffle plate and tap drain latasuture gap are filled up into compacting, yellow sand grain composition is：5-3mm 50wt%；3-1mm 25wt%；1-
0mm25wt%；
Step S103,180,000 m are had reached in air quantity3When, tapping outlet is beaten, when tapping a blast furnace more than slag or molten iron flow is poor
When, motionless baffle plate, slag iron is discharged into dry pit by slag runner；
Step S104, when molten iron flow switchs to normal, by driving a vehicle, the hanger hooked on baffle plate detaches baffle plate, molten iron
Cross skimming tool and enter tank.
Embodiment 3
Multiple wind slag sluicing system at initial stage method after the large blast furnace long term blowing-down of the present embodiment, including step in detail below：
Step S101, steel plate is chosen as substrate, and steel plate uses thickness as 15mm Q235-B or more rank material systems
Forming, its width is less than tap drain width 15mm, and some through holes are offered on its light plate, and anchoring piece includes the body of rod and nut,
The body of rod of anchoring piece passes through through hole, and both sides respectively have a nut to be fixed, and the head of anchoring piece is in Y types, (2 points of its effective depth
Between air line distance) be 25cm, the setting spacing of anchoring piece is 300*300mm, then pour into a mould the resistance to material of plate face, the resistance to material of plate face with
The resistance to material of tap drain is consistent, and the thickness of the resistance to material of plate face is 45mm, is high alumina castable, forms baffle plate, dried for standby；
Step S102, selected distance pitting inlet upstream 210mm position, baffle plate is tilted into insertion tap drain, baffle plate tilts
Angle be 65 °, the top of baffle plate is resisted against on pole, the wherein resistance to face of plate face towards iron mouth, and with moisture be 15%
Yellow sand baffle plate and tap drain latasuture gap are filled up into compacting, yellow sand grain composition is：5-3mm 60wt%；3-1mm 20wt%；1-
0mm20wt%；
Step S103,200,000 m are had reached in air quantity3When, tapping outlet is beaten, when tapping a blast furnace more than slag or molten iron flow is poor
When, motionless baffle plate, slag iron is discharged into dry pit by slag runner；
Step S104, when molten iron flow switchs to normal, by driving a vehicle, the hanger hooked on baffle plate detaches baffle plate, molten iron
Cross skimming tool and enter tank.
Claims (8)
1. a kind of multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down, it is characterised in that including step in detail below：
Step S101, choose steel plate and anchoring piece (5.2) is set as substrate (5.1), and in the side of substrate (5.1), then pour
The resistance to material of plate face (5.3) is noted, the thickness of the resistance to material of plate face (5.3) is more than the height of anchoring piece (5.2), forms baffle plate (5), and drying is treated
With；
Step S102, selected distance pitting inlet upstream 200-300mm position, baffle plate (5) is tilted into insertion tap drain (2), its
The middle resistance to material of plate face (5.3) is facing to Tie Kou (1), and with the yellow sand that moisture is 8%-15% by baffle plate (5) and tap drain (2) side
Compacting is filled up in gap；
Step S103,150,000-20 ten thousand m are had reached in air quantity3When, tapping outlet (1) is beaten, when tapping a blast furnace more than slag or molten iron flow
When poor, motionless baffle plate (5), slag iron is discharged into dry pit by slag runner；
Step S104, when molten iron flow switchs to normal, baffle plate (5) is detached, molten iron crosses skimming tool and enters tank.
2. multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down according to claim 1, it is characterised in that institute
Stating steel plate uses thickness to be made for 10-15mm Q235-B or more rank materials, and its width is less than tap drain (2) width
10-20mm。
3. multiple wind slag sluicing system at initial stage method, its feature exist after large blast furnace long term blowing-down according to claim 1 or 2
In the head of the anchoring piece (5.2) is in Y types, and its effective depth is 20-30cm, and the setting spacing of anchoring piece (5.2) is 300*
300mm。
4. multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down according to claim 3, it is characterised in that institute
To state and some through holes are offered on steel plate, anchoring piece (5.2) includes the body of rod and nut, and the body of rod of anchoring piece (5.2) passes through through hole, and two
Side respectively has a nut to be fixed.
5. multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down according to claim 1, it is characterised in that institute
State that the resistance to material of plate face (5.3) is consistent with tap drain (2) resistance to material, the thickness of the resistance to material of plate face is 45-55mm, is high alumina castable.
6. multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down according to claim 1, it is characterised in that institute
Baffle plate (5) inclined angle is stated as 60-70 °, the top of baffle plate (5) is resisted against on pole (6).
7. multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down according to claim 1, it is characterised in that institute
Stating yellow sand grain composition is：5-3mm 40wt%-60wt%；3-1mm 20wt%-30wt%；1-0mm 20wt%-30wt%.
8. multiple wind slag sluicing system at initial stage method after large blast furnace long term blowing-down according to claim 1, it is characterised in that institute
State and hanger (7) is provided with baffle plate (5).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108339971A (en) * | 2018-04-18 | 2018-07-31 | 宜兴市龙宸炉料有限公司 | A kind of combined iron storage type ditch skimming tool |
| CN108913218A (en) * | 2018-08-31 | 2018-11-30 | 义马煤业综能新能源有限责任公司 | A kind of u-gas gasification furnace castable furnace building material structure and its technique |
| CN114686624A (en) * | 2022-03-29 | 2022-07-01 | 广东韶钢松山股份有限公司 | Non-stop slag treatment method |
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| CN202090007U (en) * | 2011-05-23 | 2011-12-28 | 武汉钢铁(集团)公司 | Prefabricated member for dam of iron tap channel of blast furnace |
| CN202272893U (en) * | 2011-09-02 | 2012-06-13 | 鞍钢股份有限公司 | Sand port slag trap |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108339971A (en) * | 2018-04-18 | 2018-07-31 | 宜兴市龙宸炉料有限公司 | A kind of combined iron storage type ditch skimming tool |
| CN108913218A (en) * | 2018-08-31 | 2018-11-30 | 义马煤业综能新能源有限责任公司 | A kind of u-gas gasification furnace castable furnace building material structure and its technique |
| CN108913218B (en) * | 2018-08-31 | 2024-04-02 | 义马煤业综能新能源有限责任公司 | Furnace construction material structure of u-gas gasifier castable and process thereof |
| CN114686624A (en) * | 2022-03-29 | 2022-07-01 | 广东韶钢松山股份有限公司 | Non-stop slag treatment method |
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