CN106083089B - A kind of blast furnace dam material and its preparation, damming method - Google Patents
A kind of blast furnace dam material and its preparation, damming method Download PDFInfo
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- CN106083089B CN106083089B CN201610444575.1A CN201610444575A CN106083089B CN 106083089 B CN106083089 B CN 106083089B CN 201610444575 A CN201610444575 A CN 201610444575A CN 106083089 B CN106083089 B CN 106083089B
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- 239000000463 material Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims description 10
- 238000002360 preparation method Methods 0.000 title claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 118
- 229910052742 iron Inorganic materials 0.000 claims abstract description 59
- 239000002893 slag Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 11
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 11
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 11
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 11
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 11
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 8
- 239000000080 wetting agent Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 5
- 241000219098 Parthenocissus Species 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000012800 visualization Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000010079 rubber tapping Methods 0.000 abstract description 6
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- UVTGXFAWNQTDBG-UHFFFAOYSA-N [Fe].[Pb] Chemical compound [Fe].[Pb] UVTGXFAWNQTDBG-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/04—Blast furnaces with special refractories
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention provides a kind of blast furnace dam material, and the parts by weight of the blast furnace dam material each component are：26 35 parts of fused magnesite, 22 28 parts of crystalline graphite powder, 30 36 parts of dicalcium powder, 25 parts of zircon sand, 35 parts of silicon carbide micro-powder, 24 parts of oiliness wetting agent, 13 parts of heat stabilizer, 24 parts of water；This programme efficiently solves the deficiency of traditional blast furnace iron runner, slag runner dam material, overcome comprehensively traditional dam material insufficient formability, easily ooze iron, easily break down, easily run iron, not antiscour, intolerant to corrode, easily integral sintered influence later stage stamp dam etc. drawbacks, the greatly steady production of tapping a blast furnace of blast furnace, significantly reduce hand labor intensity and production cost, the production safety of blast furnace is effectively ensured, its market space is wide, and promotional value is huge.
Description
Technical field：
The present invention relates to metallurgical ironmaking technology field, refer in particular to blast furnace cast house molten iron tap drain region iron runner,
Blast furnace dam material used in building a dam at slag runner and technology is used accordingly.
Background technology：
The high intensity of the enlargement of blast furnace and blast furnace smelting at present has become the development trend of industry, molten iron temperature when tapping a blast furnace
Height, scum amount is big, tap a blast furnace, the slag time is long, leads to the use condition of iron tap channel refractory material to become extremely harsh, especially several recently
The restoration and reuse of year iron storage type iron tap channel is with popularizing building a dam using and propose new requirement once again to blast furnace dam material in an all-round way.
Blast furnace tapping main channel working environment is severe, and moment slag iron amount is big after tapping hole opening, and temperature is high, and erosion is strong, and
Iron storage type iron tap channel is in order to allow slag, iron to be effectively layered according to autologous density, it is necessary to just reaching certain capacity starts aerial drainage, and it is main
Ditch slag iron capacity drop is high, and pressure is very big, and traditional dam material can not meet production requirement, often occur dam body ooze iron,
It breaks down in advance, run the production accidents such as iron, major hidden danger is caused to steady and safety is produced.
Traditional iron runner dam material drawback under blast fumance technique now is fairly obvious, at all can not be with blast furnace
Mating synchronization is produced, traditional dam material material is single, and insufficient formability, time of building a dam are long, and not close or easy sintering causes
The tailings aerial drainage stage manually can not and time stamp dam, long-time anti-thermal shock, antiscour, Erosion resistance can it is poor, easily break down, wash
Situations such as dam, can not meet production requirement.
Invention content：
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of of low cost, constructing operation conveniently, Yi Cheng
Type is exempted from baking, anti-sintering, impermeable, antiscour, resistance to corrode, and trough can very be realized during use of building a dam
Disposable cutout does not break down during the slag runner use after building a dam, does not wash dam, and the later stage lets out slag can manually stab dam easily, dam body without
The methods of remaining and do not block up slag, not delaying the production time and the blast furnace dam material applied to this method.
To achieve the above object, technical solution provided by the present invention is：A kind of blast furnace dam material, the blast furnace dam material
The parts by weight of each component are：26-35 parts of fused magnesite, 22-28 parts of crystalline graphite powder, 30-36 parts of dicalcium powder, 2-5 parts of zircon sand,
3-5 parts of silicon carbide micro-powder, 2-4 parts of oiliness wetting agent, 1-3 parts of heat stabilizer, 2-4 parts of water；
The preparation process of above-mentioned formula is：
1）, in proportion by fused magnesite be put into electromagnetic speed-adjusting crusher carry out in rotating speed crush, and pass through fines reciprocating sieve
Multilayer sorting is completed, the material thickness ratio chosen after sorting accounts for 30-40% for 0-1.0mm, and 1-2.0mm accounts for 60%-70%；
2）, zircon sand be put into electromagnetic speed-adjusting crusher carry out high rotating speed in proportion and crush, and it is complete to pass through fines reciprocating sieve
Into sorting, the grain thickness of chosen material is 0-1.0mm；
3）, it is in proportion that the fused magnesite of above-mentioned selection, zircon sand, the scale graphite powder of -80 mesh, -600 mesh silicon carbide are micro-
Powder is put into closed mixer and is mixed, and mixing time is 6-10 minutes；
4）, open mixer closed cover, stirring at low speed carries out material with the sprinkler head of atomization water spray profitization, during profitization
Between be 2-3 minutes.
5）, in proportion the machine that stirs that adds in the dicalcium powder of -100 mesh after profitization be mixed again, mixing time 2-3 divides
Clock.
6）, again oiliness wetting agent, heat stabilizer are added in the batch mixing of the 5th step in proportion, and continuously stirred,
Mixing time 3-6 minutes.
7）, will mixing it is complete, the material stirred evenly PE woven bags packagings, weight per package is 20Kg/ bags, is then pasted
Mark is crossed and is examined,；
Use above-mentioned blast furnace dam material carry out iron runner, the damming method at slag runner for：
First step：Situ visualization iron runner molten iron situation, has blocked in blast-melted mouth, and iron runner molten iron water level line is shallower,
Flow less, flow velocity it is relatively slow in the case of should promptly launch a packet blast furnace dam material and stop；
Second step：A packet dam material is being added again after molten iron cutout, and with semi-circular cusp spade drawout, groove both sides are more
Build a material；
Third step：Treat that pulp water is flow to end at slag runner mouth, furrow bank both sides, bottom of trench residue are cleaned out with spade；
Four steps：3-4 packet blast furnace dam material are launched at slag runner mouth, build up an inverted trapezoidal cube, the upper long 40- in bottom
48cm, wide 15-22cm, go to the bottom long 25-30cm, wide 25-32cm, high 30-35cm；Inside and outside both ends spade ramming, flattens above；
5th step：Iron runner taps a blast furnace, when molten iron reaches certain liquid position, as long as slightly disclosing dam body with creeper,
Dam body, which collapses, can put molten iron；
6th step：Slag runner is slagged tap all early period, and overflow is gone on dam body, and treating molten iron discharging, stage, tailings will to the end
During whole aerial drainages, slag runner mouth dam body is protruded into sharp mouth iron, is repeated several times, dam body collapses, and tailings can be flow to end.
The invention has the advantages that：
Pointedly solve unstable traditional blast furnace iron runner, slag runner dam material effect, insufficient formability, non-resistance to erosion,
Intolerant to corrode, dam body easily ooze iron, easily break down run iron lead to the problems such as production accident, overcome dam body comprehensively in use
It is easily integral sintered by high temperature, the later stage is caused to be slagged tap and can not be successfully stamp dam, seriously affects the normal drawbacks such as slag tap.And this programme is real
Simplicity is applied, it is of low cost, effective upgrading is carried out to traditional dam material, by specialized material, professional construction, with blast furnace casting
Produce it is harmonious, for ironmaking skilled worker precisely controls blast furnace casting, slagging tap provides robust techniques guarantee, the market space is wide
Wealthy, promotional value is huge.
Specific embodiment
The invention will be further described below, and presently preferred embodiments of the present invention is：
The raw materials for production of blast furnace dam material described in the present embodiment select fused magnesite（0-2.0mm), scale graphite powder (-
80 mesh）, dicalcium powder（- 100 mesh）, zircon sand (0-1.0mm), silicon carbide micro-powder (- 600 mesh）, oiliness wetting agent, heat stabilizer.
Its component and weight percent are 26 parts of fused magnesite, 22 parts of scale graphite powder, 34 parts of dicalcium powder, 4 parts of zircon sand,
5 parts of silicon carbide micro-powder, 3 parts of oiliness wetting agent, 2 parts of heat stabilizer, 4 parts of water.
The blast furnace dam material manufacturing technique is：
1st, it is crushed, and pass through fines reciprocating sieve by metering than fused magnesite is put into rotating speed during electromagnetic speed-adjusting crusher carries out
Multilayer sorting is completed, the material thickness ratio chosen after sorting accounts for 40%, 1-2.0mm for 0-1.0mm and accounts for 60%.
2nd, it is crushed, and it is complete to pass through fines reciprocating sieve by metering than zircon sand is put into the high rotating speed of electromagnetic speed-adjusting crusher progress
Into sorting, ensure that the material granule thickness chosen is controlled in 0-1.0mm.
3rd, by metering than by the fused magnesite of above-mentioned selection, zircon sand, the scale graphite powder of -80 mesh, -600 mesh silicon carbide
Micro mist is put into closed mixer mixing, 8 minutes time.
4th, mixer closed cover is opened, stirring at low speed carries out material spraying profitization with the sprinkler head of atomization, and the time 3 divides
Clock.
5th, by metering than -100 mesh dicalcium powder mixers are mixed, 2 minutes time.
6th, by metering than oiliness wetting agent, heat stabilizer with adding, are continuously stirred, 5 minutes time.
7th, complete, the material stirred evenly PE woven bags packagings will be mixed, weight is 20Kg/ bags.
Blast furnace dam material finished chemical index（Fill numerical bias ± 5 perhaps）
| The project indicator | MgO | CaO | C fixed carbon | ZrO2 | Other |
| Content | 17% | 24% | 18% | 2.4% | -- |
Using the damming method at blast furnace dam material as described above progress iron runner, slag runner, it includes following steps：
1st, situ visualization iron runner molten iron situation has been blocked in blast-melted mouth, and iron runner molten iron water level line is shallower, and flow is not
Greatly, in the case that flow velocity is relatively slow a packet blast furnace dam material is promptly launched to stop.
2nd, a packet dam material is being added again after molten iron cutout, with semi-circular cusp spade drawout, a material is built on groove both sides more
, without ramming.
3rd, treat that pulp water is flow to end at slag runner mouth, furrow bank both sides, bottom of trench residue are cleaned out with spade.
4th, 3 packet blast furnace dam material are launched at slag runner mouth, build up an inverted trapezoidal cube, the upper long 45cm in bottom, wide 16cm, under
The long 28cm in bottom, wide 30cm, high 33cm.Inside and outside both ends spade ramming, flattens above.
5th, when iron runner molten iron reaches certain liquid position, as long as slightly disclosing dam body with creeper, dam body, which collapses, to be put
Molten iron.
6th, slag runner is slagged tap, and early period, all overflow was gone on dam body, treated that stage, tailings will all be let out molten iron discharging to the end
During stream, slag runner mouth dam body is protruded into sharp mouth iron, is repeated several times, dam body collapses, and tailings can be flow to end.
Since building a dam at iron runner mouth mainly puts the iron time and play cutout non-, and blast furnace dam material material is closely knit,
Anti- molten iron permeability is strong so only heap is needed to build, and without compacting, dam is disclosed when conveniently putting molten iron, and the dam of slag runner mouth will be held for a long time
It is washed away by high temperature pulp water, corrode, so using the mode of building a dam of ramming, dam body is built into the long 45cm in bottom, wide 16cm, under
The long 28cm in bottom, wide 30cm, this shape of the inverted trapezoidal cube of high 33cm, can greatly enhance the stability of dam body, prevent tapping hole
Opening error causes the impact that molten iron moment tidal bore is brought.This programme efficiently solves traditional blast furnace iron runner, slag runner dam material
Deficiency, overcome comprehensively traditional dam material insufficient formability, easily ooze iron, easily break down, easily run iron, not antiscour, intolerant to corrode,
It is easily integral sintered to influence stamp dam etc. drawbacks, the greatly steady production of tapping a blast furnace of blast furnace, significantly reduce hand labor intensity with
Production cost has effectively ensured the production safety of blast furnace, and the market space is wide, and promotional value is huge.
The embodiment of the above is only the preferred embodiments of the invention, and but not intended to limit the scope of the present invention,
Therefore the variation that all shape, principles according to the present invention are made, it should all cover within the scope of the present invention.
Claims (1)
1. a kind of blast furnace dam material, it is characterised in that：The parts by weight of the blast furnace dam material each component are：Fused magnesite 26-35
Part, 22-28 parts of crystalline graphite powder, 30-36 parts of dicalcium powder, 2-5 parts of zircon sand, 3-5 parts of silicon carbide micro-powder, oiliness wetting agent 2-4
Part, 1-3 parts of heat stabilizer, 2-4 parts of water；
The preparation process of above-mentioned formula is：
1）, in proportion by fused magnesite be put into electromagnetic speed-adjusting crusher carry out in rotating speed crush, and pass through fines reciprocating sieve and complete
Multilayer sorts, and the material thickness ratio chosen after sorting accounts for 30-40% for 0-1.0mm, and 1-2.0mm accounts for 60%-70%；
2）, zircon sand be put into electromagnetic speed-adjusting crusher carry out high rotating speed in proportion and crush, and pass through fines reciprocating sieve and complete point
Choosing, the grain thickness of chosen material is 0-1.0mm；
3）, in proportion the fused magnesite of above-mentioned selection, zircon sand, the scale graphite powder of -80 mesh, -600 mesh silicon carbide micro-powders are put
Enter closed mixer to be mixed, mixing time is 6-10 minutes；
4）, open mixer closed cover, stirring at low speed carries out material with the sprinkler head of atomization water spray profitization, and the profitization time is
2-3 minutes.
5）, in proportion by the dicalcium powder of -100 mesh add in profitization after the machine that stirs be mixed again, mixing time 2-3 minutes.
6）, again oiliness wetting agent, heat stabilizer are added in the batch mixing of the 5th step in proportion, and continuously stirred, stirred
Time 3-6 minute.
7）, will mixing it is complete, the material stirred evenly PE woven bags packagings, weight per package is 20Kg/ bag, is then labelled, mistake
Inspection,；
Use above-mentioned blast furnace dam material carry out iron runner, the damming method at slag runner for：
First step：Situ visualization iron runner molten iron situation, has blocked, iron runner molten iron water level line is shallower, flow in blast-melted mouth
Less, in the case that flow velocity is relatively slow a packet blast furnace dam material should be promptly launched to stop；
Second step：A packet dam material is being added again after molten iron cutout, and with semi-circular cusp spade drawout, groove both sides are built a little more
Material；
Third step：Treat that pulp water is flow to end at slag runner mouth, furrow bank both sides, bottom of trench residue are cleaned out with spade；
Four steps：3-4 packet blast furnace dam material are launched at slag runner mouth, build up an inverted trapezoidal cube, the upper long 40-48cm in bottom,
Wide 15-22cm, go to the bottom long 25-30cm, wide 25-32cm, high 30-35cm；Inside and outside both ends spade ramming, flattens above；
5th step：Iron runner taps a blast furnace, when molten iron reaches certain liquid position, as long as slightly disclosing dam body, dam body with creeper
Molten iron can be put by collapsing；
6th step：Slag runner is slagged tap all early period, and overflow is gone on dam body, waits to tap a blast furnace the stage to the end, tailings will all be let out
During stream, slag runner mouth dam body is protruded into sharp mouth iron, is repeated several times, dam body collapses, and tailings can be flow to end.
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| CN201610444575.1A CN106083089B (en) | 2016-06-21 | 2016-06-21 | A kind of blast furnace dam material and its preparation, damming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610444575.1A CN106083089B (en) | 2016-06-21 | 2016-06-21 | A kind of blast furnace dam material and its preparation, damming method |
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| CN106083089A CN106083089A (en) | 2016-11-09 |
| CN106083089B true CN106083089B (en) | 2018-06-12 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163637A (en) * | 2013-05-17 | 2014-11-26 | 登封市宏源耐火材料有限公司 | Carbon composite fireproof material for blast furnace iron runner and preparation method thereof |
| CN104844227A (en) * | 2014-07-30 | 2015-08-19 | 长兴攀江冶金材料有限公司 | Alumina-magnesia based slag blocking wall |
| CN105503212A (en) * | 2015-12-21 | 2016-04-20 | 江苏苏嘉集团新材料有限公司 | Magnesia carbon brick and preparation method thereof |
| CN105622069A (en) * | 2015-12-31 | 2016-06-01 | 海城市中兴高档镁质砖有限公司 | Zirconium compounding magnesium-calcium-iron ramming material and preparation method thereof |
-
2016
- 2016-06-21 CN CN201610444575.1A patent/CN106083089B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163637A (en) * | 2013-05-17 | 2014-11-26 | 登封市宏源耐火材料有限公司 | Carbon composite fireproof material for blast furnace iron runner and preparation method thereof |
| CN104844227A (en) * | 2014-07-30 | 2015-08-19 | 长兴攀江冶金材料有限公司 | Alumina-magnesia based slag blocking wall |
| CN105503212A (en) * | 2015-12-21 | 2016-04-20 | 江苏苏嘉集团新材料有限公司 | Magnesia carbon brick and preparation method thereof |
| CN105622069A (en) * | 2015-12-31 | 2016-06-01 | 海城市中兴高档镁质砖有限公司 | Zirconium compounding magnesium-calcium-iron ramming material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| Al2O3-MgAl2O4-SiC-C质耐火材料组成、结构及性能研究;张唐文等;《武汉科技大学硕士学位论文》;20061231;全文 * |
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