CN105777086A - Preparation method of drossing equipment castable - Google Patents
Preparation method of drossing equipment castable Download PDFInfo
- Publication number
- CN105777086A CN105777086A CN201610127763.1A CN201610127763A CN105777086A CN 105777086 A CN105777086 A CN 105777086A CN 201610127763 A CN201610127763 A CN 201610127763A CN 105777086 A CN105777086 A CN 105777086A
- Authority
- CN
- China
- Prior art keywords
- equipment
- skimming equipment
- prepared
- preparation
- drossing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000203 mixture Substances 0.000 claims description 74
- 239000007767 bonding agent Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 38
- 239000002893 slag Substances 0.000 claims description 34
- 238000002156 mixing Methods 0.000 claims description 18
- 229910052593 corundum Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 239000011449 brick Substances 0.000 claims description 14
- 239000010431 corundum Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- 238000010791 quenching Methods 0.000 claims description 14
- 230000000171 quenching effect Effects 0.000 claims description 14
- 239000000571 coke Substances 0.000 claims description 13
- 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
- 239000002689 soil Substances 0.000 claims description 12
- 229910052845 zircon Inorganic materials 0.000 claims description 11
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 11
- 210000000988 bone and bone Anatomy 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 47
- 229910052742 iron Inorganic materials 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 11
- 230000035939 shock Effects 0.000 abstract description 9
- 230000003628 erosive effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010079 rubber tapping Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 17
- 238000003756 stirring Methods 0.000 description 15
- 238000005266 casting Methods 0.000 description 14
- 229920002907 Guar gum Polymers 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000000665 guar gum Substances 0.000 description 11
- 229960002154 guar gum Drugs 0.000 description 11
- 235000010417 guar gum Nutrition 0.000 description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 9
- 241000219112 Cucumis Species 0.000 description 9
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 9
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 9
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 9
- 229920002301 cellulose acetate Polymers 0.000 description 9
- 239000003292 glue Substances 0.000 description 9
- 229920001568 phenolic resin Polymers 0.000 description 9
- 239000005011 phenolic resin Substances 0.000 description 9
- 239000004814 polyurethane Substances 0.000 description 8
- 229920002635 polyurethane Polymers 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 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 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000006052 feed supplement Substances 0.000 description 4
- 230000002977 hyperthermial effect Effects 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- VFKZECOCJCGZQK-UHFFFAOYSA-M 3-hydroxypropyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCCO VFKZECOCJCGZQK-UHFFFAOYSA-M 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical group NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- 229910007266 Si2O Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 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 1
- 235000021180 meal component Nutrition 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 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
- 238000009628 steelmaking Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- Ceramic Products (AREA)
Abstract
The invention discloses a preparation method of a drossing equipment castable, and belongs to the technical field of slag-iron separation equipment in the blast furnace tapping process.The method comprises the steps that 1, refractory aggregates are prepared; 2, a binding agent is prepared; 3, the binding agent prepared in the second step is added into a mixer in the first step, wherein the mass of the binding agent is 6%-8% of that of the refractory aggregates, the binding agent and the refractory aggregates are mixed to be uniform, and the drossing equipment castable is obtained.According to the prepared drossing equipment castable, by means of creative component proportioning, the drossing equipment prepared through baking has good abrasion resistance, thermal shock resistance and erosion resistance, the service life of the drossing equipment is about 50 days under the situation that the drossing equipment is not repaired, the service life of the drossing equipment is greatly prolonged, it is better guaranteed that a blast furnace is stable in furnace condition and smooth in operation, and the production cost of iron and steel enterprises is reduced.
Description
Present patent application is for Application No.: the divisional application of 2014104438782, the filing date of original application:
2014-09-02, invention and created name is: the preparation method of the skimming equipment during a kind of blast furnace casting.
Technical field
The present invention relates to slag sluicing system equipment technical field during blast furnace casting, more particularly, it relates to a kind of skimming equipment waters
Build the preparation method of material.
Background technology
Blast furnace ironmaking is most widely used iron-smelting process, mixes and by iron mouth through high temperature liquid iron and the slag of blast furnace process
Flowing out, molten iron is being transported to converter station by ladle, torpedo tank car after blast furnace casting, is carrying out pneumatic steelmaking.In order to prevent
Harmful components in slag are again introduced into molten iron, need slag sluicing system equipment to carry out high temperature sludge iron point during blast furnace casting
From.In prior art, the main slag sluicing system equipment used is skimming tool, is also called sand mouth；Main trough of blast furnace is connect on skimming tool,
Under connect iron runner, bypass connects slag runner, during tapping a blast furnace, the slag in sow with molten iron because of the different natural layering of its density.
Slag floats over above molten iron because density is little, after being blocked by skimming tool then flow to slag runner；Molten iron sinks to greatly following because of its density,
And flow to iron runner by the gap between skimming tool and sow.The slag of high-temperature liquid state, the efficiently separating of iron during realizing tapping a blast furnace.
Skimming tool is in core node position on cast house, is to ensure that the exclusive node that slag iron efficiently separates, and is to promote blast furnace casting mistake
The device that in journey, high-temperature liquid furnace slag, molten iron efficiently separate.
But, skimming tool under arms during undergo the mechanical erosion of high temperature liquid iron, the chemical erosion of high temperature furnace slag and interval
Property thermal shock corrode.And three kinds of factor alternating actions, mutually strengthen, greatly reduce the service life of skimming tool.Existing slash
Slag device typically uses the materials such as corundum, carborundum, alumina powder and pitch to make, the antiscour of skimming tool, corrosion resistance,
Antistrip performance and thermal shock resistance are poor so that only have 1-2 month the service life of skimming tool, and often within 10-15 days, just need feed supplement
Once.The frequent repairing of skimming tool, usually affects and taps a blast furnace on schedule, cause the checking underproduction, and coke ratio raises.
The service life of existing skimming tool is shorter, repair frequently, directly affects blast furnace and taps a blast furnace on schedule, extends molten iron when depositing stove
Between, not only increase a ton iron cost, bring heavy financial burden to iron and steel enterprise, and bring serious potential safety hazard.
Therefore, need the material composition of the slag sluicing system equipment during blast furnace casting that improves badly so that skimming equipment have good antiscour,
Anti-scour property, thus improve the service life of skimming equipment.
Through patent retrieval, there is relevant technical scheme open.As: a kind of blast-furnace iron runner skimmer precast lintel
(CN200910143657.2, Shen Qing Publication day: 2010-12-01), lintel castable refractory is prefabricated forms for it, and through overbaking
Come into operation after Kao, prefabricated component top future insufficiency, although this application case prevents precast lintel in use because bottom is heated swollen
The swollen elongated problem causing top tension to ftracture, extends skimming tool service life, but this application case only improves skimming tool
Structure, its not material to skimming tool form and improve, the service life of skimming tool needs to be improved further.
Additionally, a kind of blast furnace with reclaimed sand mouth material and preparation method thereof (CN201210187866.9, Shen Qing Publication day:
2013-12-11), its component and weight percent content are: its component and weight percent content be: granularity≤0.088mm's
Discarded sial material 15-20%, granularity is the quartz sand 20-30% of 1-3mm, the quartz sand 10-20% of granularity≤0.088mm,
The coke powder 7-15% of the pitch 3-10% of the clay powder 8-15% of granularity≤0.074mm, granularity≤1.0mm, granularity≤2.0mm,
The discarded iron runner material fine powder 10-20%, non-hydrate sodium metasilicate: 0.1-3% of granularity≤0.088mm.Although this application case reduces slash
The production cost of slag equipment, and high-alumina brick containing aluminium silicon material etc. and iron runner material are comprehensively utilized, but the material of skimming equipment
Material composition needs the most perfect, and improves the service life of skimming equipment further.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to overcome skimming service life of equipment in prior art short, repairing, the deficiency that replacement frequency is big, carry
Having supplied the preparation method of a kind of skimming equipment pouring material, skimming equipment prepared by the present invention passes through creative raw material components proportioning,
Not only substantially increase the service life of equipment, it is ensured that the normal production order of blast furnace, and manufacture simple and convenient.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
The step of the present invention is as follows:
Step one: prepare refractory aggregate；
Step 2: prepare bonding agent；
Step 3: bonding agent step 2 prepared joins in the mixer in step one, and wherein the quality of bonding agent is
The 6%-8% of the quality of refractory aggregate；
Step 4: skimming equipment pouring material step 3 made is poured in mould, then is fired i.e. obtaining skimming equipment.
Further, step one: prepare refractory aggregate
(1) corundum brick 80-90 part, mullite 60-80 part, zircon 14-18 part, Suzhou soil 12-15 are weighed by mass fraction
Part and coke 8-12 part, be added sequentially to said components in mixer, and at stirrer for mixing 20-25min, mixer
Rotating speed is 250r/min, obtains mixture A after mixing；
(2) converter wind quenching slag 5-8 part is weighed by mass fraction, Newman powder 1-2 part and copper ore 1-2 part, and by said components
Being added sequentially in step (1) in the mixture A prepared, mixer continues mix and blend 20min, prepares fire-resistant bone
Material.
Further, step 2: prepare bonding agent
(1) pitch 70-80 part, phenolic resin 10-25 part, guar gum 5-9 part and polyurethanes are weighed by mass fraction
5-8 part, is added sequentially in reactor, and stirring mixing 20min at a temperature of 55 DEG C, is then warming up to 80 DEG C, system
For obtaining mixture B；
(2) weigh cellulose acetate 7-10 part, butyl acrylate 2-3 part and melon glue 1-2 part by mass fraction, be sequentially added into
In mixer, and stir 20min, mix to obtain mixture C；
(3) mixture C prepared in step (2) is joined in the mixture B prepared in step (1), and continue to stir
Mix mixing 30min, obtain bonding agent.
Further, step 3: bonding agent step 2 prepared joins in the mixer in step one, Qi Zhongjie
The quality of mixture is the 6%-8% of the quality of refractory aggregate, continues mix and blend 30-40min, mixes and obtains skimming equipment and water
Build material.
Further, step 4: skimming equipment pouring material step 3 made is poured in mould, then toasts, its
The method of middle baking is as follows:
(1) hyperthermic treatment
First, it is warmed up to 150 DEG C, is incubated 3h；
Its two, be warmed up to 650 DEG C, be incubated 5h；
Its three, be warmed up to 1100 DEG C, be incubated 14h；
Finally, it is warmed up to 1500 DEG C, is incubated 10h；
(2) cooling processes
First, cool to 1200 DEG C, be incubated 5h；
Its two, cool to 700 DEG C, be incubated 2h；
Its three, cool to 300 DEG C, be incubated 2h；
Finally, air cooling to normal temperature, economy-combat grinds off burr and processes, i.e. prepares skimming equipment.
Further, the granularmetric composition of described corundum brick is: granularity≤0.074mm:30%, 0.074-1.0mm:50%,
1-3mm:20%；The granularmetric composition of described mullite is: granularity≤0.074mm:20%, 0.074-1.5mm:40%,
1.5-3.5mm:40%.
Further, the granularity≤0.074mm of described coke.
3. beneficial effect
Use the technical scheme that the present invention provides, compared with existing known technology, there is following remarkable result:
The preparation method of a kind of skimming equipment pouring material of the present invention, the pitch that its bonding agent is used is pelletted pitch, utilizes relatively
High carbon content improves in the erosion-resisting characteristics of skimming equipment, and the space of skimming equipment pouring material and remains more carbon element,
Make skimming equipment finer and close, and creative in bonding agent allocate phenolic resin, guar gum, polyurethanes, acetic acid into
Cellulose, butyl acrylate and melon glue, substantially increase the adhesive property of bonding agent, by its with refractory aggregate according to specifically
Proportioning makes skimming equipment so that the intensity enhancing of the skimming equipment made, and thermoplasticity is high, good stability；
The corundum brick of the refractory aggregate of the present invention uses different granularmetric composition with mullite so that the granularmetric composition of refractory aggregate is more
Add rationally, and in refractory aggregate, add zircon, Suzhou soil, coke, converter wind quenching slag, Newman powder and copper ore, and control
Make specific sintering parameter so that the skimming equipment that baking is made can resist mechanical erosion and the erosion of slag iron of high temperature liquid iron, tool
There is good wearability, thermal shock resistance and corrosion resistance, thus improve the service life of skimming equipment, greatly reduce stokehold
Labour intensity, preferably ensure that conditions of blast furnace is stable and direct motion.
Detailed description of the invention
For further appreciating that present disclosure, below in conjunction with embodiment, the invention will be further described.
Embodiment 1
Skimming equipment during a kind of blast furnace casting of the present embodiment, is made up of refractory aggregate and bonding agent, described bonding agent
The quality that quality is refractory aggregate 8%；The each component of described refractory aggregate is formed by following mass parts: corundum brick 90kg,
Mullite 80kg, zircon 18kg, Suzhou soil 15kg, coke 12kg, converter wind quenching slag 8kg, Newman powder 2kg and copper
Ore in sand form 2kg.
And illustrate at this, the granularmetric composition of described corundum brick is: granularity≤0.074mm:30% (mass percent),
0.074-1.0mm:50% (mass percent), 1-3mm:20% (mass percent)；The granularmetric composition of described mullite
For: granularity≤0.074mm:20% (mass percent), 0.074-1.5mm:40% (mass percent), 1.5-3.5mm:
40% (mass percent)；Granularity≤the 0.074mm of described coke.The granularity of the zircon of the present embodiment is 0.5-2.0mm,
The zircon allocating special ratios into improves the thermal shock resistance of refractory aggregate, improves service life；During described Suzhou soil is
Low temperature hot liquid alteration remnants type kaolin, the weight/mass percentage composition of its composition is: Al2O3: 38.5%, SiO2: 46.6%, other:
14.9%；This Suzhou soil granularity≤2.0mm.
Additionally, above-mentioned converter wind quenching slag be vessel slag is transported to wind quenching station by slag ladle and carriage after, the vessel slag of liquid is from slag ladle
The pans of car flow out, then the air sprayed by Laval nozzle is dispelled, and is broken into graininess and is converter wind quenching slag, this turn
The percent mass of the composition of stove wind quenching slag is: Al2O3: 3.26%, CaO:45.02%, MgO:12.85%, MnO:0.71%,
Si2O:14.61%, TFe:21.22%, f-CaO:0.48%, remaining is inevitable impurity.Above-mentioned Newman meal component
Weight/mass percentage composition be: TFe:62.02%, SiO2: 5.03%, CaO:0.23%, MnO:0.15%, Al2O3: 0.67%,
Remaining is inevitable impurity, and the granularity of this Newman powder is 2.0-3.5mm.Described copper ore is mined from copper mine
, being then passed through ore dressing becomes the sand shape copper mine that cupric quality is higher, fine, and the granularity of copper ore is 0.5-1.5mm, this copper
Ore in sand form is the copper ore of black.
The each component of bonding agent of the present embodiment is formed by following mass parts: pitch 80kg, phenolic resin 25kg, guar gum 9kg,
Polyurethanes 8kg, cellulose acetate 10kg, butyl acrylate 3kg and melon glue 2kg.What deserves to be explained is, institute
The pitch stated is pelletted pitch, described polyurethanes, is containing the macromolecular repeating carbamate groups on main chain
The general designation of compound, it is to be formed with dihydroxy or polyol addition polymerization by organic diisocyanate or polyisocyanates.
Additionally, the cellulose acetate of the present embodiment is the natural of the chemical modification that obtains after hydroxyl acetic acid esterified in cellulosic molecule
High polymer, and acetyl content is 38%.Described guar gum is high molecular weight water soluble polymer, and its chemical name is guar gum
Hydroxypropyl-trimethyl ammonium chloride.
A kind of skimming equipment during the blast furnace casting of the present embodiment, its concrete preparation method is as follows:
Step one: prepare refractory aggregate
(1) corundum brick 90kg, mullite 80kg, zircon 18kg, Suzhou soil 15kg and coke are weighed by mass fraction
12kg, is added sequentially to said components in mixer, and in stirrer for mixing 25min, mixer rotating speed is 250r/min,
Mixture A is obtained after mixing；
(2) converter wind quenching slag 8kg, Newman powder 2kg and copper ore 2kg are weighed by mass fraction, and by said components successively
Joining in the mixture A prepared in step (1), mixer continues mix and blend 20min, prepares refractory aggregate；
Step 2: prepare bonding agent
(1) pitch 80kg, phenolic resin 25kg, guar gum 9kg and polyurethanes 8kg are weighed by mass fraction,
It is added sequentially in reactor, and stirring mixing 20min at a temperature of 55 DEG C, then reactor is first with the liter of 1 DEG C/min
Temperature speed intensification 15min, is incubated 10min, then the programming rate intensification 5min with 2 DEG C/min, is warming up to 80 DEG C, system
For obtaining mixture B；
(2) weigh cellulose acetate 10kg, butyl acrylate 3kg and melon glue 2kg by mass fraction, be added sequentially to stir
Mix in machine, and stir 20min, mix to obtain mixture C；
(3) mixture C prepared in step (2) is joined in the mixture B prepared in step (1), and continue to stir
Mix mixing 30min, obtain bonding agent；
Step 3: bonding agent step 2 prepared joins in the mixer in step one, and wherein the quality of bonding agent is
The 8% of the quality of refractory aggregate, continues mix and blend 40min, mixes and obtain skimming equipment pouring material；
Step 4: skimming equipment pouring material step 3 made is poured in mould, then toasts, the method wherein toasted
As follows:
(1) hyperthermic treatment
First, it is warmed up to 150 DEG C with the programming rate of 10 DEG C/h, is incubated 3h；
Its two, be warmed up to 650 DEG C with the programming rate of 25 DEG C/h, be incubated 5h；
Its three, be warmed up to 1100 DEG C with the programming rate of 35 DEG C/h, be incubated 14h；
Finally, it is warmed up to 1500 DEG C with the programming rate of 30 DEG C/h, is incubated 10h；
(2) cooling processes
First, cool to 1200 DEG C with the cooling rate of 25 DEG C/h, be incubated 5h；
Its two, cool to 700 DEG C with the cooling rate of 40 DEG C/h, be incubated 2h；
Its three, cool to 300 DEG C with the cooling rate of 20 DEG C/h, be incubated 2h；
Finally, air cooling to normal temperature, economy-combat grinds off burr and processes, i.e. prepares skimming equipment.
A kind of skimming equipment during the blast furnace casting of the present embodiment, due in refractory aggregate creative allocated into zircon,
Suzhou soil, converter wind quenching slag, Newman powder and copper ore, enhance the high temperature resistance of this skimming equipment, thermal shock resistance and anti-erosion
Performance, the corundum brick of this refractory aggregate and mullite use different granularmetric composition so that the granularmetric composition of refractory aggregate more adduction
Reason；The pitch that the bonding agent of the present embodiment is used is pelletted pitch, utilizes higher carbon content to improve the anti-of skimming equipment
Erosion performance, and the space of skimming equipment pouring material remain more carbon element so that skimming equipment is finer and close, and bonding agent
Middle creativeness allocate phenolic resin, guar gum, polyurethanes, cellulose acetate, butyl acrylate and melon glue into, greatly
Improve greatly the adhesive property of bonding agent.
A kind of skimming equipment during the blast furnace casting of the present invention, refractory aggregate and the bonding agent component proportion by creativeness,
The perfect pouring material of skimming equipment, then prepares skimming equipment by specific sintering method, and this skimming equipment has good
Wearability, thermal shock resistance and corrosion resistance.Substantially increasing the service life of blast furnace skimming equipment, skimming equipment is not being repaired
In the case of service life reach 48 days, and in use need not feed supplement, easy for installation, not only greatly reduce stokehold
Labour intensity, and tap a blast furnace for blast furnace on schedule and provide safeguard, it is ensured that conditions of blast furnace is stablized and direct motion.
Embodiment 2
The substance of the present embodiment is with embodiment 1, its difference: the quality of the bonding agent of the present embodiment is fire-resistant bone
The 7.5% of the quality of material；The each component of described refractory aggregate is formed by following mass parts: corundum brick 85kg, mullite 75kg,
Zircon 16kg, Suzhou soil 14kg, coke 10kg, converter wind quenching slag 6kg, Newman powder 1kg and copper ore 1kg.This
The each component of bonding agent of embodiment is formed by following mass parts: pitch 75kg, phenolic resin 20kg, guar gum 8kg, poly-ammonia
Carbamate 6kg, cellulose acetate 8kg, butyl acrylate 2kg and melon glue 1kg.
A kind of skimming equipment during the blast furnace casting of the present embodiment, its concrete preparation method is as follows:
Step one: prepare refractory aggregate
(1) corundum brick 85kg, mullite 75kg, zircon 16kg, Suzhou soil 14kg and coke are weighed by mass fraction
10kg, is added sequentially to said components in mixer, and in stirrer for mixing 22min, mixer rotating speed is 250r/min,
Mixture A is obtained after mixing；
(2) converter wind quenching slag 6kg, Newman powder 1kg and copper ore 1kg are weighed by mass fraction, and by said components successively
Joining in the mixture A prepared in step (1), mixer continues mix and blend 20min, prepares refractory aggregate；
Step 2: prepare bonding agent
(1) pitch 75kg, phenolic resin 20kg, guar gum 8kg and polyurethanes 6kg are weighed by mass fraction,
It is added sequentially in reactor, and stirring mixing 20min at a temperature of 55 DEG C, then reactor is first with the liter of 1 DEG C/min
Temperature speed intensification 15min, is incubated 10min, then the programming rate intensification 5min with 2 DEG C/min, is warming up to 80 DEG C, system
For obtaining mixture B；
(2) weigh cellulose acetate 8kg, butyl acrylate 2kg and melon glue 1kg by mass fraction, be added sequentially to stir
Mix in machine, and stir 20min, mix to obtain mixture C；
(3) mixture C prepared in step (2) is joined in the mixture B prepared in step (1), and continue to stir
Mix mixing 30min, obtain bonding agent；
Step 3: bonding agent step 2 prepared joins in the mixer in step one, and wherein the quality of bonding agent is
The 7.5% of the quality of refractory aggregate, continues mix and blend 35min, mixes and obtain skimming equipment pouring material；
Step 4: skimming equipment pouring material step 3 made is poured in mould, then toasts, the method wherein toasted
As follows:
(1) hyperthermic treatment
First, it is warmed up to 150 DEG C with the programming rate of 10 DEG C/h, is incubated 3h；
Its two, be warmed up to 650 DEG C with the programming rate of 25 DEG C/h, be incubated 5h；
Its three, be warmed up to 1100 DEG C with the programming rate of 35 DEG C/h, be incubated 14h；
Finally, it is warmed up to 1500 DEG C with the programming rate of 30 DEG C/h, is incubated 10h；
(2) cooling processes
First, cool to 1200 DEG C with the cooling rate of 25 DEG C/h, be incubated 5h；
Its two, cool to 700 DEG C with the cooling rate of 40 DEG C/h, be incubated 2h；
Its three, cool to 300 DEG C with the cooling rate of 20 DEG C/h, be incubated 2h；
Finally, air cooling to normal temperature, economy-combat grinds off burr and processes, i.e. prepares skimming equipment.
A kind of skimming equipment during the blast furnace casting of the present invention, refractory aggregate and the bonding agent component proportion by creativeness,
The perfect pouring material of skimming equipment, then prepares skimming equipment by specific sintering method, and this skimming equipment has good
Wearability, thermal shock resistance and corrosion resistance.Substantially increasing the service life of blast furnace skimming equipment, skimming equipment is not being repaired
In the case of service life reach 51 days, and in use need not feed supplement, easy for installation, not only greatly reduce stokehold
Labour intensity, and tap a blast furnace for blast furnace on schedule and provide safeguard, it is ensured that conditions of blast furnace is stablized and direct motion.
Embodiment 3
The substance of the present embodiment is with embodiment 1, its difference: the quality of the bonding agent of the present embodiment is fire-resistant bone
The 6% of the quality of material；The each component of described refractory aggregate is formed by following mass parts: corundum brick 80kg, mullite 60kg, zirconium
Diamond stone 14kg, 12 parts of Suzhou soil, coke 8kg, converter wind quenching slag 5kg, Newman powder 1kg and copper ore 1kg；This enforcement
The each component of bonding agent of example is formed by following mass parts: pitch 70kg, phenolic resin 10kg, guar gum 5kg, poly-amino first
Acid esters 5kg, cellulose acetate 7kg, butyl acrylate 2kg and melon glue 1kg.
A kind of skimming equipment during the blast furnace casting of the present embodiment, its concrete preparation method is as follows:
Step one: prepare refractory aggregate
(1) corundum brick 80kg, mullite 60kg, zircon 14kg, Suzhou soil 12kg and coke 8 are weighed by mass fraction
Kg, is added sequentially to said components in mixer, and in stirrer for mixing 20min, mixer rotating speed is 250r/min,
Mixture A is obtained after mixing；
(2) converter wind quenching slag 5kg, Newman powder 1kg and copper ore 1kg are weighed by mass fraction, and by said components successively
Joining in the mixture A prepared in step (1), mixer continues mix and blend 20min, prepares refractory aggregate；
Step 2: prepare bonding agent
(1) pitch 70kg, phenolic resin 10kg, guar gum 5kg and polyurethanes 5kg are weighed by mass fraction,
It is added sequentially in reactor, and stirring mixing 20min at a temperature of 55 DEG C, then reactor is first with the liter of 1 DEG C/min
Temperature speed intensification 15min, is incubated 10min, then the programming rate intensification 5min with 2 DEG C/min, is warming up to 80 DEG C, system
For obtaining mixture B；
(2) weigh cellulose acetate 7kg, butyl acrylate 2kg and melon glue 1kg by mass fraction, be added sequentially to stir
Mix in machine, and stir 20min, mix to obtain mixture C；
(3) mixture C prepared in step (2) is joined in the mixture B prepared in step (1), and continue to stir
Mix mixing 30min, obtain bonding agent；
Step 3: bonding agent step 2 prepared joins in the mixer in step one, and wherein the quality of bonding agent is
The 6% of the quality of refractory aggregate, continues mix and blend 30min, mixes and obtain skimming equipment pouring material；
Step 4: skimming equipment pouring material step 3 made is poured in mould, then toasts, the method wherein toasted
As follows:
(1) hyperthermic treatment
First, it is warmed up to 150 DEG C with the programming rate of 10 DEG C/h, is incubated 3h；
Its two, be warmed up to 650 DEG C with the programming rate of 25 DEG C/h, be incubated 5h；
Its three, be warmed up to 1100 DEG C with the programming rate of 35 DEG C/h, be incubated 14h；
Finally, it is warmed up to 1500 DEG C with the programming rate of 30 DEG C/h, is incubated 10h；
(2) cooling processes
First, cool to 1200 DEG C with the cooling rate of 25 DEG C/h, be incubated 5h；
Its two, cool to 700 DEG C with the cooling rate of 40 DEG C/h, be incubated 2h；
Its three, cool to 300 DEG C with the cooling rate of 20 DEG C/h, be incubated 2h；
Finally, air cooling to normal temperature, economy-combat grinds off burr and processes, i.e. prepares skimming equipment.
A kind of skimming equipment during the blast furnace casting of the present invention, refractory aggregate and the bonding agent component proportion by creativeness,
The perfect pouring material of skimming equipment, then prepares skimming equipment by specific sintering method, and this skimming equipment has good
Wearability, thermal shock resistance and corrosion resistance.Substantially increasing the service life of blast furnace skimming equipment, skimming equipment is not being repaired
In the case of service life reach 47 days, and in use need not feed supplement, easy for installation, not only greatly reduce stokehold
Labour intensity, and tap a blast furnace for blast furnace on schedule and provide safeguard, it is ensured that conditions of blast furnace is stablized and direct motion.
Claims (5)
1. the preparation method of a skimming equipment pouring material, it is characterised in that: its step is as follows:
Step one: prepare refractory aggregate；
Step 2: prepare bonding agent；
Step 3: bonding agent step 2 prepared joins in the mixer in step one, and wherein the quality of bonding agent is
The 6%-8% of the quality of refractory aggregate, mixes and obtains skimming equipment pouring material.
The preparation method of a kind of skimming equipment pouring material the most according to claim 1, it is characterised in that: step one: preparation
Refractory aggregate
(1) corundum brick 80-90 part, mullite 60-80 part, zircon 14-18 part, Suzhou soil 12-15 are weighed by mass fraction
Part and coke 8-12 part, be added sequentially to said components in mixer, and at stirrer for mixing 20-25min, mixer
Rotating speed is 250r/min, obtains mixture A after mixing；
(2) converter wind quenching slag 5-8 part is weighed by mass fraction, Newman powder 1-2 part and copper ore 1-2 part, and by said components
Being added sequentially in step (1) in the mixture A prepared, mixer continues mix and blend 20min, prepares fire-resistant bone
Material.
The preparation method of a kind of skimming equipment pouring material the most according to claim 2, it is characterised in that: step 3: will step
Rapid two bonding agents prepared join in the mixer in step one, and wherein the quality of bonding agent is the quality of refractory aggregate
6%-8%, continues mix and blend 30-40min, mixes and obtain skimming equipment pouring material.
The preparation method of a kind of skimming equipment pouring material the most according to claim 2, it is characterised in that: described corundum brick
Granularmetric composition be: granularity≤0.074mm:30%, 0.074-1.0mm:50%, 1-3mm:20%；Described mullite
Granularmetric composition be: granularity≤0.074mm:20%, 0.074-1.5mm:40%, 1.5-3.5mm:40%.
The preparation method of a kind of skimming equipment pouring material the most according to claim 2, it is characterised in that: described coke
Granularity≤0.074mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111592367A (en) * | 2020-06-05 | 2020-08-28 | 郑州市瑞沃耐火材料有限公司 | Anhydrous stemming for blast furnace taphole |
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| CN103255246A (en) * | 2013-04-27 | 2013-08-21 | 新疆八一钢铁股份有限公司 | Technology for preventing slag ladle from cracking |
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| JPS60213337A (en) * | 1984-04-06 | 1985-10-25 | Kao Corp | Runner for casting |
| CN1944343A (en) * | 2006-10-20 | 2007-04-11 | 佘成明 | Skimming tool |
| CN101407424A (en) * | 2007-10-08 | 2009-04-15 | 联合矿产（天津）有限公司 | Low-dust unshaped refractory |
| CN201459161U (en) * | 2009-05-15 | 2010-05-12 | 佘成明 | Main iron runner of single tap-hole blast furnace |
| 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 |
| CN103255246A (en) * | 2013-04-27 | 2013-08-21 | 新疆八一钢铁股份有限公司 | Technology for preventing slag ladle from cracking |
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| CN111592367A (en) * | 2020-06-05 | 2020-08-28 | 郑州市瑞沃耐火材料有限公司 | Anhydrous stemming for blast furnace taphole |
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| CN105777086B (en) | 2019-01-18 |
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