CN105347828B - A kind of preparation method of long-lived blast furnace casting sand mouth - Google Patents
A kind of preparation method of long-lived blast furnace casting sand mouth Download PDFInfo
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- CN105347828B CN105347828B CN201510907398.1A CN201510907398A CN105347828B CN 105347828 B CN105347828 B CN 105347828B CN 201510907398 A CN201510907398 A CN 201510907398A CN 105347828 B CN105347828 B CN 105347828B
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- 239000004576 sand Substances 0.000 title claims abstract description 138
- 238000005266 casting Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 68
- 239000007767 bonding agent Substances 0.000 claims abstract description 36
- 239000000498 cooling water Substances 0.000 claims abstract description 21
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 45
- 229910052593 corundum Inorganic materials 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000010792 warming Methods 0.000 claims description 16
- 229920002472 Starch Polymers 0.000 claims description 15
- 239000011449 brick Substances 0.000 claims description 15
- 235000019698 starch Nutrition 0.000 claims description 15
- 239000008107 starch Substances 0.000 claims description 15
- 239000010431 corundum Substances 0.000 claims description 14
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 13
- 229910052863 mullite Inorganic materials 0.000 claims description 13
- 239000004927 clay Substances 0.000 claims description 12
- 239000000571 coke Substances 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 12
- 239000010881 fly ash Substances 0.000 claims description 12
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 229920002401 polyacrylamide Polymers 0.000 claims description 11
- 239000004593 Epoxy Substances 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 10
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 9
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 9
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 9
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 9
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 9
- 239000000440 bentonite Substances 0.000 claims description 8
- 229910000278 bentonite Inorganic materials 0.000 claims description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 8
- 229920002907 Guar gum Polymers 0.000 claims description 7
- 239000000665 guar gum Substances 0.000 claims description 7
- 229960002154 guar gum Drugs 0.000 claims description 7
- 235000010417 guar gum Nutrition 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 229910052611 pyroxene Inorganic materials 0.000 claims description 2
- 239000002893 slag Substances 0.000 abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 124
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 44
- 229910052742 iron Inorganic materials 0.000 description 22
- 239000002245 particle Substances 0.000 description 11
- 229910052634 enstatite Inorganic materials 0.000 description 10
- BBCCCLINBSELLX-UHFFFAOYSA-N magnesium;dihydroxy(oxo)silane Chemical compound [Mg+2].O[Si](O)=O BBCCCLINBSELLX-UHFFFAOYSA-N 0.000 description 10
- 238000003756 stirring Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 244000017020 Ipomoea batatas Species 0.000 description 6
- 235000002678 Ipomoea batatas Nutrition 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 230000003628 erosive effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910052681 coesite Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 229910052906 cristobalite Inorganic materials 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 229910052682 stishovite Inorganic materials 0.000 description 4
- 229910052905 tridymite Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229920001592 potato starch Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 240000003183 Manihot esculenta Species 0.000 description 2
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000005055 methyl trichlorosilane Substances 0.000 description 2
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 2
- 239000005054 phenyltrichlorosilane Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ORVMIVQULIKXCP-UHFFFAOYSA-N trichloro(phenyl)silane Chemical compound Cl[Si](Cl)(Cl)C1=CC=CC=C1 ORVMIVQULIKXCP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 244000151018 Maranta arundinacea Species 0.000 description 1
- 235000010804 Maranta arundinacea Nutrition 0.000 description 1
- IOGHPVQIVVOORI-UHFFFAOYSA-N NC[Si](Cl)(Cl)C1=CC=CC=C1 Chemical compound NC[Si](Cl)(Cl)C1=CC=CC=C1 IOGHPVQIVVOORI-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 235000012419 Thalia geniculata Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- SIDURXWHELGWNV-UHFFFAOYSA-N benzene;prop-1-ene;sodium Chemical compound [Na].CC=C.CC=C.CC=C.CC=C.C1=CC=CC=C1 SIDURXWHELGWNV-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- GNEPOXWQWFSSOU-UHFFFAOYSA-N dichloro-methyl-phenylsilane Chemical compound C[Si](Cl)(Cl)C1=CC=CC=C1 GNEPOXWQWFSSOU-UHFFFAOYSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000006052 feed supplement Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- VZWGHDYJGOMEKT-UHFFFAOYSA-J sodium pyrophosphate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O VZWGHDYJGOMEKT-UHFFFAOYSA-J 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- NASFKTWZWDYFER-UHFFFAOYSA-N sodium;hydrate Chemical compound O.[Na] NASFKTWZWDYFER-UHFFFAOYSA-N 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a kind of preparation method of long-lived blast furnace casting sand mouth, belong to slag sluicing system equipment technical field during blast furnace casting.The preparation method step of the present invention is as follows：Step 1：Prepare refractory aggregate；Step 2：Prepare bonding agent；Step 3：The bonding agent being prepared is added in refractory aggregate, it is well mixed to obtain sand mouth material；Step 4：Sand mouth material made of step 3 is successively made firm by ramming into material wall, and cooling water pipe is arranged in material wall, each layer make firm by ramming it is closely knit after, repave another layer of sand mouth material and continue to make firm by ramming, sand mouth is made after the completion of making firm by ramming；Step 5：The sand mouth made firm by ramming is sintered, after the completion of sintering, normal temperature is cooled to and sand mouth is prepared.Service life reaches 50 days or so in the case of not repaired the invention enables sand mouth, preferably ensure that stable conditions of blast furnace, safety and direct motion.
Description
Present patent application is to be directed to Application No.：2014103398364 divisional application, the applying date of original application
For：On July 16th, 2014, invention and created name are：A kind of long-lived blast furnace casting sand mouth and preparation method thereof.
Technical field
The present invention relates to slag sluicing system equipment technical field during blast furnace casting, more specifically to a kind of long-lived
Blast furnace casting sand mouth preparation method.
Background technology
Blast furnace is the capital equipment of ironmaking production, and relative to other ironmaking equipments, it has, and yield is big, yield is high and production
The characteristics of cost is low.During blast fumance from furnace roof load iron ore, coke, slag making flux, from positioned at lower furnace along stove week
Air port be blown into preheated air.(also coal injection, heavy oil, natural gas etc. aid in the blast furnace having coke under the high temperature conditions
Fuel) in carbon with the CO of the oxygen burning generation blasted in air, CO reacts in stove in uphill process with iron ore, from
And reduce and the pig iron is made, the flux such as the impurity and lime stone that can not be reduced in iron ore combines generation clinker.
Because the molten iron and clinker of high temperature are mixed, it is necessary to which slag sluicing system equipment separates to slag iron.Sand mouth is
Important slag sluicing system equipment during blast furnace casting, it is that high-temperature liquid furnace slag, molten iron have during promoting blast furnace casting
Imitate the device of separation.Connect main trough of blast furnace on sand mouth, under connect branch iron runner, bypass connection slag runner, core section is on cast house
Point position, and ensure the exclusive node that slag iron efficiently separates.The performance of sand mouth to the stabilization of blast furnace casting process, direct motion very
It is important, the normal production order of blast furnace is directly influenced, then has influence on the economic benefit of iron and steel enterprise.
Sand mouth Service Environment is very severe, sand mouth under arms during, be subject primarily to the sustaining breakdowns of following several factors：
(1) mechanical erosion of high temperature liquid iron；(2) chemical erosion of high temperature furnace slag；(3) blast furnace intermittent tapping, the thermal shock triggered when slagging tap
Corrode.Three kinds of factor alternating actions, mutually strengthen, greatly reduce the service life of sand mouth.Traditional sand mouth per 10-15 days just
Need feed supplement once, service life only has 1-2 months.It is repaired frequently, and repairing labor intensity is big, severe operational environment, serious danger
The health of evil repairing personnel；Further, since the repairing of sand mouth is frequent, usually influences to tap a blast furnace on schedule, cause the checking underproduction, coke ratio
Rise.Moreover, existing sand mouth refractory aggregate typically uses the aluminium-silicon carbide-carbon refractory material using corundum as main aggregate,
Due to composition and proportioning imperfection so that the service life of blast furnace casting sand mouth is difficult to reach desirability.
The deficiency of existing sand mouth, directly affects and taps a blast furnace on schedule, extends molten iron and deposits the stove time, it is hidden to bring serious safety
Suffer from, and add a ton iron cost, heavy financial burden is brought to iron and steel enterprise.Therefore, need badly and improve sand jaws equipment so that sand
Mouth has good antiscour, anti-scour property, so as to improve sand mouth service life.
Through retrieval, China Patent No.：ZL201210187866.9, authorized announcement date are：On December 11st, 2013, invention wound
That makes is entitled：A kind of blast furnace reclaimed sand mouth material and preparation method thereof, its component and weight percent content are：Granularity≤
0.088mm discarded sial material 15-20%, granularity be 1-3mm quartz sand 20-30%, granularity≤0.088mm quartz sand
10-20%, granularity≤0.074mm clay powder 8-15%, granularity≤1.0mm pitch 3-10%, granularity≤2.0mm coke powder
7-15%, granularity≤0.088mm discarded iron runner material fine powder 10-20%, non-hydrate sodium metasilicate：0.1-3%.Although this application case
Discarded high-alumina brick of aluminium silicon material etc. and iron runner material are comprehensively utilized, but the composition of sand mouth material needs to be further improved,
And repairing is frequent, repairing labor intensity is big, and severe operational environment, to flushing and casting, personnel bring titanic peril.
In addition, Chinese Patent Application No.：200910143657.2 data of publication of application on December 1st, 2010, innovation and creation
It is entitled：A kind of blast-furnace iron runner skimmer precast lintel, lintel castable refractory is prefabricated forms for its, and is thrown after overbaking
Enter to use, prefabricated component top future insufficiency, although this application case prevents precast lintel when in use because bottom expanded by heating becomes
Long the problem of causing top tension to ftracture, skimming tool service life is extended, but this application case only improves structure, it is simultaneously
The performance of sand mouth material is not improved, the life-span of sand mouth needs further to be improved.
The content of the invention
1. invention technical problems to be solved
It is an object of the invention to overcome in the prior art sand mouth service life it is short, the big deficiency of repairing replacement frequency, carry
For a kind of preparation method of long-lived blast furnace casting sand mouth, sand mouth prepared by the present invention substantially increases the use longevity of sand mouth
Life, and simple and convenient is manufactured, it ensure that the normal production order of blast furnace.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：
A kind of long-lived blast furnace casting sand mouth of the present invention, is made up of, described material wall one end material wall and cooling water pipe
Sand mouth entrance is offered, and expects that the other end of wall offers the outlet of sand mouth, described sand mouth entrance passes through U-shaped logical with the outlet of sand mouth
Road is connected；Described material wall is internally provided with cooling water pipe, and cooling water pipe is Flat waterpipe；Described material wall is by sand mouth material system
Into the sand mouth material is made up of refractory aggregate and bonding agent, and the quality of bonding agent is the 6.5%-8.0% of refractory aggregate quality.
Further, described refractory aggregate each component is formed by following mass parts：
Described bonding agent each component is formed by following mass parts：
Further, described aggregate each component is formed by following mass parts：
Further, described bonding agent each component is formed by following mass parts：
A kind of preparation method of long-lived blast furnace casting sand mouth of the present invention, its preparation methods steps are as follows：
Step 1：Prepare refractory aggregate；
Step 2：Prepare bonding agent；
Step 3：The bonding agent that step 2 is prepared is added in the refractory aggregate in step 1, is well mixed
To sand mouth material；
Step 4：Sand mouth material made of step 3 is successively made firm by ramming into material wall, and cooling water pipe is arranged in material wall, often
One layer make firm by ramming it is closely knit after, repave another layer of sand mouth material and continue to make firm by ramming, sand mouth is made after the completion of making firm by ramming；
Step 5：The sand mouth made firm by ramming in step 4 is sintered, after the completion of sintering, normal temperature is cooled to and sand is prepared
Mouthful.
Further, it is comprised the following steps that：
Step 1：Prepare refractory aggregate
(1) corundum brick 45-60 parts, mullite 40-50 parts, bentonite 10-12 parts, coke 8-10 are weighed by mass fraction
Part, concrete 5-8 parts and flyash 3-6 parts are discarded, said components are added sequentially in mixer, and in stirrer for mixing 22-
28min, mixer rotating speed are 230-280r/min, and mixture A is obtained after being well mixed；
(2) carborundum 15-18 parts are weighed by mass fraction, monticellite 1-3 parts, Suzhou soil 2-3 parts, clay 1-2 parts,
1 part of enstatite 1-2 parts and sodium pyrophosphate, said components are added sequentially in mixture A, and continue to be stirred 30-
40min, refractory aggregate is prepared after well mixed；
Step 2：Prepare bonding agent
(1) pitch 60-70 parts, organic siliconresin 30-40 parts, epoxy modified phenolic resin 13-16 are weighed by mass fraction
Part and neoprene 6-9 parts, above-mentioned component is sequentially added in reactor, reactor first is warming up into 50 DEG C, then stirred
25min is mixed, during this, reactor is first heated up 20min, then the heating rate with 2 DEG C/min with 1 DEG C/min heating rate
Heat up 5min, well mixed that mixture B is prepared；
(2) polyacrylamide 2-3 parts, starch 1-2 parts, 2 parts of neopelex and Gu Er are weighed by mass fraction
1 part of glue, is added sequentially in mixer, and stirs 15-20min, is well mixed to obtain mixture C；
(3) obtained mixture C in step (2) is added in step (1) in obtained mixture B, and continues to stir
25-30min is mixed, produces bonding agent；
Step 3：The bonding agent that step 2 is prepared is added in the refractory aggregate in step 1, wherein bonding agent
Quality be refractory aggregate quality 6.5%-8.0%, continue to mix 45-55min, it is well mixed to obtain sand mouth material；
Step 4：Sand mouth material made of step 3 is successively made firm by ramming into material wall, and cooling water pipe is arranged in material wall, often
One layer make firm by ramming it is closely knit after, repave another layer of sand mouth material and continue to make firm by ramming, and make bulk density >=2.55g/cm of the rear bed of material firm by ramming3, smash
Gu sand mouth is made after the completion of；
Step 5：The sand mouth made firm by ramming in step 4 is sintered, wherein the method sintered is as follows：
(1) heat up sintering process, is warming up to 1500 DEG C, is incubated 12-16h；
(2) cool down, 300 DEG C are cooled to, is incubated 7-9h, is then air-cooled to normal temperature and sand mouth is prepared.
3. beneficial effect
Using technical scheme provided by the invention, compared with existing known technology, there is following remarkable result：
The preparation method of a kind of long-lived blast furnace casting sand mouth of the present invention, due to being provided with the sand mouth material wall of preparation
Cooling water pipe, when sand mouth works, the service temperature of sand mouth is significantly reduced, and cooling water pipe is flat pipe, is improved cold
But effect.The bonding agent of sand mouth is by pitch, organic siliconresin, epoxy modified phenolic resin, neoprene and polyacrylamide etc.
Component, and it is made according to specific proportioning so that plasticity is high, and heat endurance is good；Refractory aggregate is using varigrained firm
Beautiful brick, mullite so that the particles of aggregates of sand mouth is more reasonable, and the aggregate proportioning and bonding agent proportioning innovated, and improves sand
The combination property of mouth, substantially increasing the service life of sand mouth so that service life reaches 50 days in the case that sand mouth is not repaired,
The labor intensity of stokehold is greatly reduced, preferably ensure that stable conditions of blast furnace, safety and direct motion.
In addition, a kind of preparation method of long-lived blast furnace casting sand mouth of the present invention, using discarded concrete and flyash as
Refractory aggregate composition uses so that discarded object obtains resource recycling utilization, reduces the production cost of sand mouth.
Brief description of the drawings
Fig. 1 is the overall structure diagram of sand mouth prepared by the present invention.
Label declaration in schematic diagram：
1st, wall is expected；21st, sand mouth entrance；22nd, sand mouth exports；3rd, U-shaped passage；4th, cooling water pipe.
Embodiment
To further appreciate that present disclosure, with reference to embodiment, the invention will be further described.
Embodiment 1
A kind of long-lived blast furnace casting sand mouth of the present embodiment, is made up of, described material wall 1 material wall 1 and cooling water pipe 4
One end offers sand mouth entrance 21, and expects that the other end of wall 1 offers sand mouth outlet 22, and described sand mouth entrance 21 goes out with Sha Kou
Mouth 22 is connected by U-shaped passage 3, and the slag iron of high temperature is flowed into by sand mouth entrance 21, is flowed through U-shaped passage 3 from the outlet of sand mouth outlet 22
Go out, realize that high-temperature liquid furnace slag, molten iron efficiently separate during tapping a blast furnace；Described material wall 1 is internally provided with cooling water pipe 4,
And cooling water pipe 4 is Flat waterpipe；Due to being provided with cooling water pipe 4 in sand mouth material wall 1, when sand mouth works, cooling water pipe 4 has
The service temperature of sand mouth is reduced to effect, and cooling water pipe 4 is flat pipe, increases the contact area of cooling water pipe 4, improves
Cooling effect.Described material wall 1 is made up of sand mouth material, and the sand mouth material is made up of refractory aggregate and bonding agent, and the matter of bonding agent
Measure as the 7.5% of refractory aggregate quality.
The refractory aggregate each component of the present embodiment is formed by following mass parts：Corundum brick 52kg, mullite 45kg, bentonite
11kg, coke 9kg, concrete 6kg, flyash 4kg, carborundum 16kg, monticellite 2kg, Suzhou soil 2kg, clay 1kg are discarded,
Enstatite 1kg and sodium pyrophosphate 1kg.
Above-mentioned discarded concrete is discarded mixed mud；Flyash is before coal-fired flue-gas is discharged into air by air-introduced machine, suddenly
The cold particulate in vitreum state, by deduster, it is separated, collects obtained particulate, the quality percentage of the fine coal ash component
Content is：SiO2：41.8%, Al2O3：33.0%, Fe2O3：8.5%, CaO：6.6%, MgO：5.2%, Na2O+K2O：2.7%,
Remaining impurity：2.2%.The present embodiment uses the Al of corundum brick2O3Content be 91%.Moreover, described Suzhou soil is low in being
Warm hydrothermal alteration remnants type kaolin, the weight/mass percentage composition of its composition are：Al2O3：39.6%, SiO2：45.9%, remaining is miscellaneous
Matter：14.5%.
The clay of the present embodiment refers to, containing irony and with tones such as yellowish-brown, canescence, reddish violet, have good plastic
The clay of property, mineralogical composition is based on montmorillonite, kaolin；The weight/mass percentage composition of the clay composition is：SiO2：66.5%,
Al2O3：18.4%, Fe2O3：5.3%, CaO：1.8%, MgO：2.2%, remaining impurity：5.8%.In addition, enstatite is oblique
A subspecies in Fang Huishi races, orthorhombic pyroxene race are a complicated iron magnesium silicate solid solutions, the enstatite into
Divide MgO and SiO2Based on, submember Al, Ca, TiO2And MnO.Above-mentioned sodium pyrophosphate is also known as sodium pyrophosphate decahydrate, is
White powder, it is soluble in water.
The corundum brick that the corundum brick of the present embodiment, wherein particle diameter are 3.0-5.0mm is 35%, and particle diameter is 1.0-3.0mm's
Corundum brick is 35%, and corundum brick of the particle diameter less than 1.0mm is 30%.The mullite of the present embodiment, wherein particle diameter are 3.0-5.0mm
Mullite be 40%, the mullite that particle diameter is 1.0-3.0mm is 35%, particle diameter less than 1.0mm mullite be 25%.It is above-mentioned
Bentonitic particle diameter be：1.0-2.5mm, the particle diameter of discarded concrete are：2.0-4.0mm.In addition, the particle diameter of coke and flyash
For：1.0-1.5mm；Described monticellite and particle diameter≤1.0mm of Suzhou soil；Described enstatite is added to 200 mesh
The percent of pass of sieve is 85%.
The bonding agent each component of the present embodiment is formed by following mass parts：Pitch 65kg, organic siliconresin 35kg, epoxy change
Property phenolic resin 14kg, neoprene 7kg, polyacrylamide 2kg, starch 1kg, neopelex 2kg and guar gum
1kg.Under illustrating herein, above-mentioned organic siliconresin is the polysiloxane of highly cross-linked network structure, and it is by methyl
Trichlorosilane, dimethyldichlorosilane, phenyl trichlorosilane and dichloromethyl phenylsilane mix, wherein the matter of each component
Measuring percentage composition is：Methyl trichlorosilane：20%, dimethyldichlorosilane：30%, phenyl trichlorosilane：20%, aminomethyl phenyl
Dichlorosilane：30%.Described epoxy modified phenolic resin is 40% single order thermosetting phenolic resin and 60% diphenylol
Composite made of propane epoxy resin composition.
The polyacrylamide of the present embodiment is referred to as PAM high molecular weight water soluble polymers, insoluble in most of organic solvents,
With good flocculability, the frictional resistance between liquid can be reduced.Above-mentioned starch is green starch, tapioca, sweet
The weight/mass percentage composition of the mixture of sweet potato starch, starch from sweet potato and farina, wherein each component is：Green starch：15%th,
Tapioca：20%th, sweet potato starch：10%th, starch from sweet potato：25%th, farina：30%；And green starch, para arrowroot
The percent of pass that powder, sweet potato starch, starch from sweet potato, farina are added to 200 mesh sieves is 80%.Neopelex is again
Referred to as tetrapropylene benzene sodium sulfonate, it is white or faint yellow powdery, is dissolved in water and forms translucent solution.
A kind of long-lived blast furnace casting sand mouth of the present embodiment, its specific preparation method are as follows：
Step 1：Prepare refractory aggregate
(1) corundum brick 52kg, mullite 45kg, bentonite 11kg, coke 9kg are weighed by mass fraction, discard concrete 6kg and
Flyash 4kg, said components are added sequentially in mixer, and add appropriate water, in stirrer for mixing 25min, are stirred
It is 250r/min to mix machine rotating speed, and mixture A is obtained after being well mixed；
(2) carborundum 16kg, monticellite 2kg, Suzhou soil 2kg, clay 1kg, enstatite are weighed by mass fraction
1kg and sodium pyrophosphate 1kg, said components are added sequentially in mixture A, and add appropriate water, continue to be stirred
35min, refractory aggregate is prepared after well mixed；
Step 2：Prepare bonding agent
(1) pitch 65kg, organic siliconresin 35kg, epoxy modified phenolic resin 14kg and neoprene rubber are weighed by mass fraction
Glue 7kg, above-mentioned component is sequentially added in reactor, reactor is first warming up to 50 DEG C, is then stirred 25min, this
During, reactor is first with 1 DEG C/min heating rate heating 20min, then the heating rate heating 5min with 2 DEG C/min, mixes
Uniformly mixture B is prepared in conjunction；
(2) polyacrylamide 2kg, starch 1kg, neopelex 2kg and guar gum are weighed by mass fraction
1kg, it is added sequentially in mixer, and stirs 18min, is well mixed to obtain mixture C；
(3) obtained mixture C in step (2) is added in step (1) in obtained mixture B, and continues to stir
28min is mixed, produces bonding agent；
Step 3：The bonding agent that step 2 is prepared is added in the refractory aggregate in step 1, wherein bonding agent
Quality be the 7.5% of refractory aggregate quality, continue to mix 50min, it is well mixed to obtain sand mouth material；
Step 4：Sand mouth material made of step 3 is successively made firm by ramming into material wall 1, and cooling water pipe 4 is arranged in material wall 1
In, every layer of thickness control is 20mm, each layer make firm by ramming it is closely knit after, repave another layer of sand mouth material and continue to make firm by ramming, and the volume of the bed of material
Density >=2.55g/cm3, sand mouth is made after the completion of making firm by ramming；
Step 5：The sand mouth made firm by ramming in step 4 is sintered, wherein the method sintered is as follows：
(1) heat up sintering process, first, is warming up to 450 DEG C with 25 DEG C/h programming rate, is incubated 10h；Then, with 45
DEG C/h programming rate is warming up to 1050 DEG C, it is incubated 12h；Finally, 1500 DEG C are warming up to 30 DEG C/h programming rate, insulation
14h；
(2) cool down, 300 DEG C is cooled to 30 DEG C/h cooling rate, 8h is incubated, is then air-cooled to normal temperature i.e.
Sand mouth is prepared.
A kind of long-lived blast furnace casting sand mouth of the present embodiment, sinter molding is toasted after making firm by ramming, makes sand mouth material in high temperature
Sinter molding under environment, reach the mineral phase structure of requirement, meet that requirement is washed away and corroded to resistance high temperature slag iron.And the sand mouth is burning
During system, by specific component proportion, anti-thermal shock, antiscour and the erosion-resistant performance of sand mouth are substantially increased.From
And improve the service life of sand mouth.Service life of the sand mouth of the present embodiment in the case of not repairing is shown in Table 1.
Embodiment 2
The substance of the present embodiment is with embodiment 1, its difference：The refractory aggregate each component of the present embodiment is pressed
Following mass parts composition：Corundum brick 45kg, mullite 40kg, bentonite 10kg, coke 8kg, concrete 5kg, flyash 3kg are discarded,
Carborundum 15kg, monticellite 1kg, Suzhou soil 2kg, clay 1kg, enstatite 1kg and sodium pyrophosphate 1kg.
The bonding agent each component of the present embodiment is formed by following mass parts：Pitch 60kg, organic siliconresin 30kg, epoxy change
Property phenolic resin 13kg, neoprene 6kg, polyacrylamide 2kg, starch 1kg, neopelex 2kg and guar gum
1kg。
A kind of long-lived blast furnace casting sand mouth of the present embodiment, its specific preparation method are as follows：
Step 1：Prepare refractory aggregate
(1) corundum brick 45kg, mullite 40kg, bentonite 10kg, coke 8kg are weighed by mass fraction, discard concrete 5kg and
Flyash 3kg, said components are added sequentially in mixer, and add appropriate water, in stirrer for mixing 22min, are stirred
It is 230r/min to mix machine rotating speed, and mixture A is obtained after being well mixed；
(2) carborundum 15kg, monticellite 1kg, Suzhou soil 2kg, clay 1kg, enstatite are weighed by mass fraction
1kg and sodium pyrophosphate 1kg, said components are added sequentially in mixture A, and add appropriate water, continue to be stirred
30min, refractory aggregate is prepared after well mixed；
Step 2：Prepare bonding agent
(1) pitch 60kg, organic siliconresin 30kg, epoxy modified phenolic resin 13kg and neoprene rubber are weighed by mass fraction
Glue 6kg, above-mentioned component is sequentially added in reactor, reactor is first warming up to 50 DEG C, is then stirred 25min, this
During, reactor is first with 1 DEG C/min heating rate heating 20min, then the heating rate heating 5min with 2 DEG C/min, mixes
Uniformly mixture B is prepared in conjunction；
(2) polyacrylamide 2kg, starch 1kg, neopelex 2kg and guar gum are weighed by mass fraction
1kg, it is added sequentially in mixer, and stirs 15min, is well mixed to obtain mixture C；
(3) obtained mixture C in step (2) is added in step (1) in obtained mixture B, and continues to stir
25min is mixed, produces bonding agent；
Step 3：The bonding agent that step 2 is prepared is added in the refractory aggregate in step 1, wherein bonding agent
Quality be the 6.5% of refractory aggregate quality, continue to mix 45min, it is well mixed to obtain sand mouth material；
Step 4：Sand mouth material made of step 3 is successively made firm by ramming into material wall 1, and cooling water pipe 4 is arranged in material wall 1
In, every layer of thickness control in 15mm, each layer make firm by ramming it is closely knit after, repave another layer of sand mouth material and continue to make firm by ramming, and the volume of the bed of material
Density >=2.55g/cm3, sand mouth is made after the completion of making firm by ramming；
Step 5：The sand mouth made firm by ramming in step 4 is sintered, wherein the method sintered is as follows：
(1) heat up sintering process, first, is warming up to 450 DEG C with 25 DEG C/h programming rate, is incubated 8h；Then, with 45
DEG C/h programming rate is warming up to 1050 DEG C, it is incubated 10h；Finally, 1500 DEG C are warming up to 30 DEG C/h programming rate, insulation
12h；
(2) cool down, 300 DEG C is cooled to 30 DEG C/h cooling rate, 7h is incubated, is then air-cooled to normal temperature i.e.
Sand mouth is prepared.
A kind of long-lived blast furnace casting sand mouth of the present embodiment, sinter molding is toasted after making firm by ramming, makes sand mouth material in high temperature
Sinter molding under environment, reach the mineral phase structure of requirement, meet that requirement is washed away and corroded to resistance high temperature slag iron.And the sand mouth is burning
During system, by specific component proportion, anti-thermal shock, antiscour and the erosion-resistant performance of sand mouth are substantially increased.From
And improve the service life of sand mouth.Service life of the sand mouth of the present embodiment in the case of not repairing is shown in Table 1.
Embodiment 3
The substance of the present embodiment is with embodiment 1, its difference：The refractory aggregate each component of the present embodiment is pressed
Following mass parts composition：Corundum brick 60kg, mullite 50kg, bentonite 12kg, coke 10kg, concrete 8kg, flyash 6kg are discarded,
Carborundum 18kg, monticellite 3kg, Suzhou soil 3kg, clay 2kg, enstatite 2kg and sodium pyrophosphate 1kg.
The bonding agent each component of the present embodiment is formed by following mass parts：Pitch 70kg, organic siliconresin 40kg, epoxy change
Property phenolic resin 16kg, neoprene 9kg, polyacrylamide 3kg, starch 2kg, neopelex 2kg and guar gum
1kg。
A kind of long-lived blast furnace casting sand mouth of the present embodiment, its specific preparation method are as follows：
Step 1：Prepare refractory aggregate
(1) corundum brick 60kg, mullite 50kg, bentonite 12kg, coke 10kg are weighed by mass fraction, discards concrete 8kg
With flyash 6kg, said components are added sequentially in mixer, and add appropriate water, in stirrer for mixing 28min,
Mixer rotating speed is 280r/min, and mixture A is obtained after being well mixed；
(2) carborundum 18kg, monticellite 3kg, Suzhou soil 3kg, clay 2kg, enstatite are weighed by mass fraction
2kg and sodium pyrophosphate 1kg, said components are added sequentially in mixture A, and add appropriate water, continue to be stirred
40min, refractory aggregate is prepared after well mixed；
Step 2：Prepare bonding agent
(1) pitch 70kg, organic siliconresin 40kg, epoxy modified phenolic resin 16kg and neoprene rubber are weighed by mass fraction
Glue 9kg, above-mentioned component is sequentially added in reactor, reactor is first warming up to 50 DEG C, is then stirred 25min, this
During, reactor is first with 1 DEG C/min heating rate heating 20min, then the heating rate heating 5min with 2 DEG C/min, mixes
Uniformly mixture B is prepared in conjunction；
(2) polyacrylamide 3kg, starch 2kg, neopelex 2kg and guar gum are weighed by mass fraction
1kg, it is added sequentially in mixer, and stirs 20min, is well mixed to obtain mixture C；
(3) obtained mixture C in step (2) is added in step (1) in obtained mixture B, and continues to stir
30min is mixed, produces bonding agent；
Step 3：The bonding agent that step 2 is prepared is added in the refractory aggregate in step 1, wherein bonding agent
Quality be the 8.0% of refractory aggregate quality, continue to mix 55min, it is well mixed to obtain sand mouth material；
Step 4：Sand mouth material made of step 3 is successively made firm by ramming into material wall 1, and cooling water pipe 4 is arranged in material wall 1
In, every layer of thickness control in 25mm, each layer make firm by ramming it is closely knit after, repave another layer of sand mouth material and continue to make firm by ramming, and make the rear bed of material firm by ramming
Bulk density >=2.55g/cm3, sand mouth is made after the completion of making firm by ramming；
Step 5：The sand mouth made firm by ramming in step 4 is sintered, wherein the method sintered is as follows：
(1) heat up sintering process, first, is warming up to 450 DEG C with 25 DEG C/h programming rate, is incubated 12h；Then, with 45
DEG C/h programming rate is warming up to 1050 DEG C, it is incubated 13h；Finally, 1500 DEG C are warming up to 30 DEG C/h programming rate, insulation
16h；
(2) cool down, 300 DEG C is cooled to 30 DEG C/h cooling rate, 9h is incubated, is then air-cooled to normal temperature i.e.
Sand mouth is prepared.
A kind of long-lived blast furnace casting sand mouth of the present embodiment, sinter molding is toasted after making firm by ramming, makes sand mouth material in high temperature
Sinter molding under environment, reach the mineral phase structure of requirement, meet that requirement is washed away and corroded to resistance high temperature slag iron.And the sand mouth is burning
During system, by specific component proportion, anti-thermal shock, antiscour and the erosion-resistant performance of sand mouth are substantially increased.From
And improve the service life of sand mouth.Service life of the sand mouth of the present embodiment in the case of not repairing is shown in Table 1.
Service life of the sand mouth in the case where not repairing prepared by the embodiment 1-3 of table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Existing sand mouth | |
| Service life (my god) | 54 days | 49 days | 52 days | 10-15 days |
As can be seen from Table 1, the sand mouth being prepared reaches 50 days or so in the service life of situation about not repairing, significantly
The service life of sand mouth is improved, and sand mouth is easy for installation at blast furnace iron notch, the work for reducing stokehold staff is strong
Degree, provided safeguard for slag sluicing system during blast furnace casting, so as to ensure that stable conditions of blast furnace, safety and direct motion.The present invention
Sand mouth refractory aggregate discarded concrete and flyash are used as refractory aggregate component so that discarded object obtain resource recycling profit
With.
Claims (2)
1. a kind of preparation method of long-lived blast furnace casting sand mouth, its preparation methods steps are as follows：
Step 1：Prepare refractory aggregate
(1) corundum brick 45-60 parts are weighed by mass fraction, mullite 40-50 parts, bentonite 10-12 parts, coke 8-10 parts, given up
Concrete 5-8 parts and flyash 3-6 parts are abandoned, said components are added sequentially in mixer, and in stirrer for mixing 22-28min,
Mixer rotating speed is 230-280r/min, and mixture A is obtained after being well mixed；
(2) carborundum 15-18 parts, monticellite 1-3 parts, Suzhou soil 2-3 parts, clay 1-2 parts, stupid fire are weighed by mass fraction
1 part of pyroxene 1-2 parts and sodium pyrophosphate, said components are added sequentially in mixture A, and continue to be stirred 30-40min,
Refractory aggregate is prepared after well mixed；
Step 2：Prepare bonding agent
(1) pitch 60-70 parts are weighed by mass fraction, organic siliconresin 30-40 parts, epoxy modified phenolic resin 13-16 parts and
Neoprene 6-9 parts, above-mentioned component is sequentially added in reactor, and reactor first is warming up into 50 DEG C, is then stirred
25min, during this, reactor is first heated up 20min with 1 DEG C/min heating rate, then is heated up with 2 DEG C/min heating rate
5min, it is well mixed that mixture B is prepared；
(2) polyacrylamide 2-3 parts, starch 1-2 parts, 2 parts of neopelex and guar gum 1 are weighed by mass fraction
Part, it is added sequentially in mixer, and 15-20min is stirred, it is well mixed to obtain mixture C；
(3) obtained mixture C in step (2) is added in step (1) in obtained mixture B, and continues to be stirred
25-30min, produce bonding agent；
Step 3：The bonding agent that step 2 is prepared is added in the refractory aggregate in step 1, well mixed to obtain sand
Mouth material；
Step 4：Sand mouth material made of step 3 is successively made firm by ramming into material wall (1), and cooling water pipe (4) is arranged in material wall (1)
In, each layer make firm by ramming it is closely knit after, repave another layer of sand mouth material and continue to make firm by ramming, sand mouth is made after the completion of making firm by ramming；
Step 5：The sand mouth made firm by ramming in step 4 is sintered, after the completion of sintering, normal temperature is cooled to and sand mouth is prepared.
2. a kind of preparation method of long-lived blast furnace casting sand mouth according to claim 1, it is comprised the following steps that：
Step 3：The bonding agent that step 2 is prepared is added in the refractory aggregate in step 1, wherein the matter of bonding agent
Measure as the 6.5%-8.0% of refractory aggregate quality, continue to mix 45-55min, it is well mixed to obtain sand mouth material；
Step 4：Sand mouth material made of step 3 is successively made firm by ramming into material wall (1), and cooling water pipe (4) is arranged in material wall (1)
In, each layer make firm by ramming it is closely knit after, repave another layer of sand mouth material and continue to make firm by ramming, and make bulk density >=2.55g/ of the rear bed of material firm by ramming
cm3, sand mouth is made after the completion of making firm by ramming；
Step 5：The sand mouth made firm by ramming in step 4 is sintered, wherein the method sintered is as follows：
(1) heat up sintering process, is warming up to 1500 DEG C, is incubated 12-16h；
(2) cool down, 300 DEG C are cooled to, is incubated 7-9h, is then air-cooled to normal temperature and sand mouth is prepared.
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| CN201410339836.4A CN104060011B (en) | 2014-07-16 | 2014-07-16 | Blast furnace casting sand mouth of a kind of longevity and preparation method thereof |
| CN201510907398.1A CN105347828B (en) | 2014-07-16 | 2014-07-16 | A kind of preparation method of long-lived blast furnace casting sand mouth |
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| CN115274375A (en) * | 2022-07-25 | 2022-11-01 | 东莞市博钺电子有限公司 | Fuse encapsulating material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200642Y (en) * | 1994-09-22 | 1995-06-14 | 河南省安阳钢铁公司 | Combined waterless cold magnesium blast furnace iron sand notch |
| CN1944343A (en) * | 2006-10-20 | 2007-04-11 | 佘成明 | Skimming tool |
| CN101509050A (en) * | 2009-03-23 | 2009-08-19 | 四川省川威集团有限公司 | Method for producing and mending slag separator |
| CN102701761A (en) * | 2012-06-08 | 2012-10-03 | 武汉钢铁(集团)公司 | Sand mouth material for blast furnace and preparation method for sand mouth material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898170B (en) * | 2012-11-19 | 2013-08-14 | 高金菊 | Anhydrous stemming for blast furnace tapping hole |
-
2014
- 2014-07-16 CN CN201510907398.1A patent/CN105347828B/en not_active Expired - Fee Related
- 2014-07-16 CN CN201410339836.4A patent/CN104060011B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200642Y (en) * | 1994-09-22 | 1995-06-14 | 河南省安阳钢铁公司 | Combined waterless cold magnesium blast furnace iron sand notch |
| CN1944343A (en) * | 2006-10-20 | 2007-04-11 | 佘成明 | Skimming tool |
| CN101509050A (en) * | 2009-03-23 | 2009-08-19 | 四川省川威集团有限公司 | Method for producing and mending slag separator |
| CN102701761A (en) * | 2012-06-08 | 2012-10-03 | 武汉钢铁(集团)公司 | Sand mouth material for blast furnace and preparation method for sand mouth material |
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| CN104060011B (en) | 2015-12-02 |
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