CN100432265C - Nickle chromium cobalt iron alloy and its smelting tech. process and equipment of blast furnace opening of blocking slag - Google Patents
Nickle chromium cobalt iron alloy and its smelting tech. process and equipment of blast furnace opening of blocking slag Download PDFInfo
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- CN100432265C CN100432265C CNB2006101715632A CN200610171563A CN100432265C CN 100432265 C CN100432265 C CN 100432265C CN B2006101715632 A CNB2006101715632 A CN B2006101715632A CN 200610171563 A CN200610171563 A CN 200610171563A CN 100432265 C CN100432265 C CN 100432265C
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- 238000003723 Smelting Methods 0.000 title claims abstract description 28
- 229910001313 Cobalt-iron alloy Inorganic materials 0.000 title claims description 36
- WBWJXRJARNTNBL-UHFFFAOYSA-N [Fe].[Cr].[Co] Chemical compound [Fe].[Cr].[Co] WBWJXRJARNTNBL-UHFFFAOYSA-N 0.000 title claims description 36
- 239000002893 slag Substances 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 20
- 230000008569 process Effects 0.000 title description 4
- 230000000903 blocking effect Effects 0.000 title 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000000843 powder Substances 0.000 claims abstract description 45
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 21
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 14
- 239000008188 pellet Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 36
- 239000010941 cobalt Substances 0.000 claims description 36
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 36
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 35
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 35
- 239000000498 cooling water Substances 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 26
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 24
- 239000010459 dolomite Substances 0.000 claims description 21
- 229910000514 dolomite Inorganic materials 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 claims description 21
- 239000010436 fluorite Substances 0.000 claims description 21
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 20
- 239000011574 phosphorus Substances 0.000 claims description 20
- 239000003818 cinder Substances 0.000 claims description 19
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 14
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 14
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 14
- 239000000654 additive Substances 0.000 claims description 14
- 230000000996 additive effect Effects 0.000 claims description 14
- 239000011575 calcium Substances 0.000 claims description 14
- 229910052791 calcium Inorganic materials 0.000 claims description 14
- 239000004571 lime Substances 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 10
- 239000011651 chromium Substances 0.000 claims description 10
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 8
- 239000005864 Sulphur Substances 0.000 claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 8
- 239000000956 alloy Substances 0.000 abstract description 8
- 238000005245 sintering Methods 0.000 abstract description 4
- 229910020598 Co Fe Inorganic materials 0.000 abstract 4
- 229910002519 Co-Fe Inorganic materials 0.000 abstract 4
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 2
- 239000011707 mineral Substances 0.000 abstract 2
- 238000005453 pelletization Methods 0.000 abstract 2
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 239000000292 calcium oxide Substances 0.000 description 6
- 235000012255 calcium oxide Nutrition 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011504 laterite Substances 0.000 description 2
- 229910001710 laterite Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- RIVZIMVWRDTIOQ-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co].[Co] RIVZIMVWRDTIOQ-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The Ni-Cr-Co-Fe alloy contains Ni, Cr, Co, Fe, Si, Mn, S and P. The Ni-Cr-Co-Fe alloy is smelted through mixing Ni-Cr-Co ore concentrate powder with coke powder and bentonite in a drum mixer, pelletizing in a disc pelletizing machine, stoving, sintering to form pellet; sintering high magnesia mineral; mixing the pellet and sintered high magnesia mineral; and smelting the mixture in a blast furnace to obtain Ni-Cr-Co-Fe alloy. The Ni-Cr-Co-Fe alloy is used in making bulkhead for botting device in blast furnace.
Description
Technical field
The present invention relates to the stifled cinder notch equipment of a kind of chromium cobalt iron alloy and smelting technology method and blast furnace, belong to technical field of blast furnace process.
Background technology
Stainless steel industry is flourish in recent years, and chromium cobalt iron alloy grows with each passing day in the demand in market, and price is surging, and supply shortage is though a large amount of import also can't be satisfied the demand of stainless steel enterprise full production.By pure nickel, the pure chromium of former mine heat furnace smelting explained hereafter, not only complex process, energy consumption height, yield poorly, cost height, seriously polluted, and must be the just suitable processing requirement of high-grade laterite nickel chromium triangle cobalt ore (nickel content is more than 2.0%).Adopt hydrometallurgy for low-grade laterite nickel chromium triangle cobalt ore more, have high input but equipment is disposable, the cycle is long, serious waste of resources, contaminate environment.Therefore it is both economical adopting blast-furnace smelting chromium cobalt iron alloy technology, the disposable comprehensive extractions of element such as nickel, chromium, cobalt, iron in the technology, but continuous production, output height, energy consumption are low, are the cheap raw materials of stainless steel industry.But owing to absorb very big heat at cupola well in the chromium reduction process, cause slag iron thickness, the discharging difficulty easily causes the hearth freeze-up accident.Improving the intensity of agglomerate for this reason, reach reasonable blast-furnace burden, formulate corresponding operating duty and slag iron emission measure, is to solve the bottleneck that low-grade nickel chromium triangle ferro-cobalt breeze is smelted, and is the technical measures of resource comprehensive recycle.
The method of traditional smelting nickel chromium triangle cobalt-base alloy mainly is with the crushing raw ore screening, and breeze and coke powder, unslaked lime/Wingdale mix are carried out sintering, obtain sintered ore.Owing to contain large quantity of moisture in the raw ore, the general practice be with breeze with coke powder, when unslaked lime/Wingdale mixes after, slough wherein moisture by natural air drying, but dehydrating effect is not so good.Can influence make the ball effect in the batch mixing process, and the yield rate of reduction agglomerate.
For manually yellow mud being placed on the stifled cinder notch plug, the plug that will have yellow mud by the plug handle gets lodged in stifled cinder notch to the metallurgical deslagging mode of traditional blast furnace, does refractory materials by yellow mud and protects plug not burnt by the high temperature in the stove mostly.But during owing to smelting nickel chromium triangle cobalt-base alloy, it is big to go out the quantity of slag, so slag notch is corresponding bigger; this has just caused the volume of plug to increase, and plug is made of metal, and weight is very big; if still adopt traditional manual type operation, can increase working strength of workers greatly, be unfavorable for labour protection.
Summary of the invention
Chromium cobalt iron alloy of the present invention, it comprises weight percent is 1.92%～10.59% nickel, 2.63%～20.10% chromium, 0.04%～0.22% cobalt, 1.35%～3.41% silicon, 0.06%～0.68% manganese, 0～0.06% sulphur, 0～0.045% phosphorus, and all the other are iron.
Chromium cobalt iron alloy of the present invention, the weight percent of sulphur is 0～0.043% in the alloy, the weight percent of phosphorus is 0～0.03%.
The smelting technology method of chromium cobalt iron alloy of the present invention comprises the steps:
1) nickel network cobalt tantalite power is dried after entering the balling disc balling-up after coke powder, wilkinite advance cylinder mixer batch mixing, enter sinter machine again, utilize blast furnace gas to fire pellet, wherein:
The weight percent that wilkinite accounts for total amount is 0～3%
The weight percent that coke powder accounts for total amount is 3%～6%;
2) with nickel chromium triangle cobalt ore powder and coke powder, ground dolomite, fluorite powder, remove phosphorus additive, calcium lime powder advances cylinder mixer batch mixing, makes ball, enters sinter machine again, utilizes blast furnace gas to fire the high magnesia agglomerate, wherein:
The weight percent that coke powder accounts for total amount is 3%～6%
The weight percent that the fluorite powder accounts for total amount is 0～0.3%
The weight percent that ground dolomite accounts for total amount is 9%～15%
The weight percent that accounts for total amount except that phosphorus additive is 0～4%
The weight percent that calcium lime powder accounts for total amount is 0～3%;
3) with pellet and high magnesia agglomerate mutually blended prepare burden into the blast-furnace smelting chromium cobalt iron alloy, wherein:
The weight percent that pellet accounts for total amount is 10%～35%
All the other are the high magnesia agglomerate.
The smelting technology method of chromium cobalt iron alloy of the present invention, described with pellet and high magnesia agglomerate mutually the stockline degree of depth of blended batching in blast furnace be 0.8～3.5m.
The smelting technology method of chromium cobalt iron alloy of the present invention mainly comprises the steps:
1) with nickel chromium triangle cobalt ore powder and coke powder, ground dolomite, fluorite powder, remove phosphorus additive, calcium lime powder advances cylinder mixer batch mixing, makes ball, enters sinter machine again, utilizes blast furnace gas to fire the high magnesia agglomerate, wherein:
The weight percent that coke powder accounts for total amount is 3%～6%
The weight percent that the fluorite powder accounts for total amount is 0～0.3%
The weight percent that ground dolomite accounts for total amount is 9%～15%
The weight percent that accounts for total amount except that phosphorus additive is 0～4%
The weight percent that calcium lime powder accounts for total amount is 0～3%;
2) nickel chromium triangle cobalt ore powder is entered the revolution cellar for storing things with addition of fluorite powder, ground dolomite, coke powder and be fired into nickel chromium triangle cobalt ore slag, the weight ratio of nickel chromium triangle cobalt ore slag and additive is:
The weight percent that the fluorite powder accounts for total amount is 0～6%
The weight percent that ground dolomite accounts for total amount is 1%～5%
The weight percent that the magnesium oxide slag accounts for total amount is 0～15%
3) prepare burden into the blast-furnace smelting chromium cobalt iron alloy with nickel chromium triangle cobalt ore slag and high magnesia agglomerate, the weight ratio of nickel chromium triangle cobalt ore slag and high magnesia agglomerate is:
The weight percent that nickel chromium triangle cobalt ore slag accounts for total amount is 15%～40%
All the other are the high magnesia agglomerate;
Wherein the 3rd) in the step:
The weight percentage of the Calcium Fluoride (Fluorspan) in the fluorite powder is 50%～75%
Magnesian weight percentage in the ground dolomite is 17%～21%
Magnesian weight percentage in the magnesium oxide slag is 30%～40%
The weight percentage of the calcium oxide of calcium lime powder is 70%～90%.
The smelting technology method of chromium cobalt iron alloy of the present invention, described with nickel chromium triangle cobalt ore slag and high magnesia agglomerate mutually the stockline degree of depth of blended batching in blast furnace be 0.8～3.5m.
Blast furnace of the present invention blocks up cinder notch equipment, comprise stifled handle and be installed in the plug that adapts with slag notch on the stifled handle, the stifled cinder notch equipment of the blast furnace of described chromium cobalt iron alloy also is provided with slide rail, coaster, coaster can slidably reciprocate along slide rail by power set and transmission mechanism, and coaster and stifled handle are fixed together, stifled handle inner chamber and plug intracavity inter-connection, stifled handle inside is provided with cooling-water duct, and stifled handle is provided with cooling water inlet pipe and cooling water outlet pipe.
Blast furnace of the present invention blocks up cinder notch equipment, described stifled handle is a tubular, be provided with end cap with the relative end that plug is installed, the structure of described cooling-water duct is, inside at stifled handle is provided with a cooling water inlet pipe and cooling water outlet pipe, cooling water inlet pipe one end is fixed on the end cap and stretches out end cap, the other end is fixed on the disc of plug inside, have some through holes on the disc of plug inside, the structure of described drive unit is, end at coaster is fixed with a wireline, wireline is wound on the tackleblock that is fixed on the slide rail, the other end of wireline is fixed on the hoisting mechanism, is fixed with another wireline at the other end of coaster, and wireline is walked around another tackleblock that is fixed on the slide rail and linked to each other with heavy bell.
Blast furnace of the present invention blocks up cinder notch equipment, described stifled handle is a tubular, one end is provided with end cap, the other end is equipped with plug, the inside of described stifled handle is provided with a cooling water inlet pipe and cooling water outlet pipe, cooling water inlet pipe one end is fixed on the end cap and stretches out end cap, the other end is fixed on the disc of plug inside, have some through holes on the disc of plug inside, described transmission mechanism comprises plug unlatching tackleblock, plug is closed tackleblock, described power set comprises hoisting mechanism and heavy bell, described straight slide rail is a joist steel, one end is fixed on the blast furnace bustle pipe, the other end is fixed on the furnace wall, straight slide rail and horizontal plane form an angle, the axis of straight slide rail and the axis of slag notch are in a plane, and be positioned at the top of slag notch, described coaster is provided with roller, roller is rotatably mounted on the coaster by roller shaft, the rolling surface of roller is placed on the slide rail, can roll along slide rail, described plug is opened tackleblock and is comprised that being rotatably mounted to straight slide rail by sheave shaft opens pulley and second plug unlatching pulley near first plug of the bottom of an end of bustle pipe, it is vertical with the plane at straight slide rail cross-section center line place that first plug is opened plane, pulley place, the plane at second plug unlatching pulley place is parallel with the lower surface of straight slide rail, plug unlatching tackleblock will block up handle by wireline and hoisting mechanism is linked together, wireline one end is fixed on the stifled handle, and the other end is walked around respectively and is fixed on the hoisting mechanism after second plug is opened pulley and first plug unlatching pulley; Described plug is closed tackleblock and is comprised and be rotatably mounted to by sheave shaft that straight slide rail cuts out tackleblock near first plug of an end bottom of furnace wall and second plug is closed tackleblock, it is vertical with the plane at straight slide rail cross-section center line place that described first plug is closed plane, tackleblock place, the plane that second plug is closed the tackleblock place is parallel with the lower surface of straight slide rail, plug closes that tackleblock will block up handle by wireline and heavy bell is linked together, wireline one end is fixed on the stifled handle, the other end is walked around second plug respectively and is closed and be fixed on the heavy bell after pulley and first plug are closed pulley, will weigh bell and be pulled away from ground.The angle of described slide rail and horizontal plane is 12 °～20 °.
Chromium cobalt iron alloy of the present invention because iron, nickel, chromium, cobalt, etc. element comprehensive extraction in technology have with low cost, the advantage of comprehensive utilization simultaneously.
The smelting technology method of chromium cobalt iron alloy of the present invention owing to added the drying course after the batch mixes, can fully be removed the large quantity of moisture in the batching, so improved sintering finished rate, increase the intensity of agglomerate, improved the blast furnace permeability of stock column, improved output.
Blast furnace of the present invention blocks up cinder notch equipment, adopts the structure of mechanize, has reduced working strength of workers, has improved working efficiency, has adopted the mode of water quench plug, can thoroughly solve the problem that plug easily is melted.
Other details of the stifled cinder notch equipment of blast furnace of the present invention and characteristics can just can be cheer and bright by reading the embodiment that hereinafter encyclopaedizes in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the front view of the stifled cinder notch equipment of blast furnace of the present invention.
Embodiment
At first choose raw materials for metallurgy: the nickel chromium triangle ore deposit: nickel chromium triangle iron ore recovery process because nickeliferous, chromium is low, iron content is higher, can not satisfy the requirement of putting forward nickel technology thereby be used as tailing waste.These barrows can be as the raw material of smelting chromium cobalt iron alloy (mother liquor of stainless steel).The composition weight content in described nickel chromium triangle ore deposit is: iron: iron protoxide 34.16%: nickel 1.03%: chromium 1.78%: sulphur 2.21%: phosphorus 0.022%: manganese 0.027%: silicon-dioxide 0.14%: calcium oxide 6.48%: magnesium oxide 1.02%: aluminum oxide 12.46%: 3.68%: cobalt oxide 0.23%.The composition weight content of described nickel chromium triangle breeze is: iron: iron protoxide 41.15%: nickel 1.03%: chromium 1.55%: sulphur 2.35%: phosphorus 0.023%: manganese 0.023%: silicon-dioxide 0.13%: calcium oxide 8.05%: magnesium oxide 2.15%: aluminum oxide 10.46%: 3.04%, cobalt oxide 0.2%.
Chromium cobalt iron alloy of the present invention, it comprises weight percent is 1.92%～10.59% nickel, 2.63%～20.10% chromium, 0.04%～0.22% cobalt, 1.35%～3.41% silicon, 0.06%～0.68% manganese, 0～0.06% sulphur, 0～0.045% phosphorus, and all the other are iron.
Chromium cobalt iron alloy of the present invention, the weight percent of sulphur is 0～0.043% in the alloy, the weight percent of phosphorus is 0～0.03%.
The smelting technology method of chromium cobalt iron alloy of the present invention comprises the steps:
1) nickel network cobalt tantalite power is dried after entering the balling disc balling-up after coke powder, wilkinite advance cylinder mixer batch mixing, enter sinter machine again, utilize blast furnace gas to fire pellet, wherein:
The weight percent that wilkinite accounts for total amount is 0～3%
The weight percent that coke powder accounts for total amount is 3%～6%
2) with nickel chromium triangle cobalt ore powder and coke powder, ground dolomite, fluorite powder, remove phosphorus additive, calcium lime powder advances cylinder mixer batch mixing, makes ball, enters sinter machine again, utilizes blast furnace gas to fire the high magnesia agglomerate, wherein:
The weight percent that coke powder accounts for total amount is 3%～6%
The weight percent that the fluorite powder accounts for total amount is 0～0.3%
The weight percent that ground dolomite accounts for total amount is 9%～15%
The weight percent that accounts for total amount except that phosphorus additive is 0～4%
The weight percent that calcium lime powder accounts for total amount is 0～3%;
3) with pellet and high magnesia agglomerate mutually blended prepare burden into the blast-furnace smelting chromium cobalt iron alloy, wherein:
The weight percent that pellet accounts for total amount is 10%～35%
All the other are the high magnesia agglomerate.
The smelting technology method of chromium cobalt iron alloy of the present invention, described with pellet and high magnesia agglomerate mutually the stockline degree of depth of blended batching in blast furnace be 0.8～3.5m.
The smelting technology method of chromium cobalt iron alloy of the present invention mainly comprises the steps:
1) with nickel chromium triangle cobalt ore powder and coke powder, ground dolomite, fluorite powder, remove phosphorus additive, calcium lime powder advances cylinder mixer batch mixing, makes ball, enters sinter machine again, utilizes blast furnace gas to fire the high magnesia agglomerate, wherein:
The weight percent that coke powder accounts for total amount is 3%～6%
The weight percent that the fluorite powder accounts for total amount is 0～0.3%
The weight percent that ground dolomite accounts for total amount is 9%～15%
The weight percent that accounts for total amount except that phosphorus additive is 0～4%
The weight percent that calcium lime powder accounts for total amount is 0～3%;
2) nickel chromium triangle cobalt ore powder is entered the revolution cellar for storing things with addition of fluorite powder, ground dolomite, coke powder and be fired into nickel chromium triangle cobalt ore slag, the weight ratio of nickel chromium triangle cobalt ore slag and additive is:
The weight percent that the fluorite powder accounts for total amount is 0～6%
The weight percent that ground dolomite accounts for total amount is 1%～5%
The weight percent that the magnesium oxide slag accounts for total amount is 0～15%
3) prepare burden into the blast-furnace smelting chromium cobalt iron alloy with nickel chromium triangle cobalt ore slag and high magnesia agglomerate, the weight ratio of nickel chromium triangle cobalt ore slag and high magnesia agglomerate is:
The weight percent that nickel chromium triangle cobalt ore slag accounts for total amount is 15%～40%
All the other are the high magnesia agglomerate;
Wherein the 3rd) in the step:
The weight percentage of the Calcium Fluoride (Fluorspan) in the fluorite powder is 50%～75%
Magnesian weight percentage in the ground dolomite is 17%～21%
Magnesian weight percentage in the magnesium oxide slag is 30%～40%
The weight percentage of the calcium oxide of calcium lime powder is 70%～90%
The smelting technology method of chromium cobalt iron alloy of the present invention, described with nickel chromium triangle cobalt ore slag and high magnesia agglomerate mutually the stockline degree of depth of blended batching in blast furnace be 0.8～3.5m.
As shown in Figure 1, blast furnace of the present invention blocks up cinder notch equipment, comprise stifled handle 2 and be installed in the plug 1 that adapts with slag notch on the stifled handle 2, the stifled cinder notch equipment of the blast furnace of described chromium cobalt iron alloy also is provided with slide rail 6, coaster 14, and coaster 14 can reciprocatingly slide along slide rail 6 by drive unit, coaster 14 is fixed together with stifled handle 2, stifled handle 2 inner chambers and plug 1 intracavity inter-connection, stifled handle 2 inside are provided with cooling-water duct, and stifled handle 2 is provided with cooling water inlet pipe 3 and cooling water outlet pipe 4.
Blast furnace of the present invention blocks up cinder notch equipment, described stifled handle 2 is a tubular, be provided with end cap 5 with the relative end that plug is installed, the structure of described cooling-water duct is, be provided with a cooling water inlet pipe 3 and cooling water outlet pipe 4 in the inside of stifled handle 2, cooling water inlet pipe 3 one ends are fixed on the end cap 5 and stretch out end cap 5, the other end is fixed on the disc of plug 1 inside, have some through holes on the disc of plug 1 inside, the structure of described drive unit is, end at coaster 14 is fixed with a wireline, wireline is wound on the tackleblock that is fixed on the slide rail 6, the other end of wireline is fixed on the hoisting mechanism, is fixed with another wireline at the other end of coaster 14, and wireline is walked around another tackleblock that is fixed on the slide rail 6 and linked to each other with heavy bell.
Specifically, blast furnace of the present invention blocks up cinder notch equipment, described stifled handle 2 is a tubular, one end is provided with end cap 5, the other end is equipped with plug 1, the inside of described stifled handle 2 is provided with a cooling water inlet pipe 3 and cooling water outlet pipe 4, cooling water inlet pipe 3 one ends are fixed on the end cap 5 and stretch out end cap 5, the other end is fixed on the disc of plug 1 inside, have some through holes on the disc of plug 1 inside, described transmission mechanism comprises plug unlatching tackleblock 8, plug is closed tackleblock 9, described power set comprises hoisting mechanism 10 and heavy bell 13, described straight slide rail 6 is a joist steel, one end is fixed on the blast furnace bustle pipe 11, the other end is fixed on the furnace wall 12, straight slide rail 6 forms an angle with horizontal plane, the axis of straight slide rail 6 and the axis of slag notch are in a plane, and be positioned at the top of slag notch, described coaster 14 is provided with roller 7, roller 7 is rotatably mounted on the coaster 14 by roller shaft, the rolling surface of roller 7 is placed on the slide rail 6, can roll along slide rail, described plug is opened tackleblock 8 and is comprised that being rotatably mounted to straight slide rail 6 by sheave shaft opens pulley 81 and second plug unlatching pulley 82 near first plug of the bottom of an end of bustle pipe 11, it is vertical with the plane at straight slide rail 6 cross-section center line places that first plug is opened plane, pulley 81 place, the plane at second plug unlatching pulley, 82 places is parallel with the lower surface of straight slide rail 6, plug unlatching tackleblock 8 will block up handle 2 by wireline and hoisting mechanism 10 is linked together, wireline one end is fixed on the stifled handle 2, and the other end is walked around respectively and is fixed on the hoisting mechanism 10 after second plug is opened pulley 82 and first plug unlatching pulley 81; Described plug is closed tackleblock 9 and is comprised and be rotatably mounted to by sheave shaft that straight slide rail 6 cuts out tackleblock 91 near first plug of an end bottom of furnace walls 12 and second plug is closed tackleblock 92, it is vertical with the plane at straight slide rail 6 cross-section center line places that described first plug is closed plane, tackleblock 91 place, the plane that second plug is closed tackleblock 92 places is parallel with the lower surface of straight slide rail 6, plug closes that tackleblock 9 will block up handle 2 by wireline and heavy bell 13 is linked together, wireline one end is fixed on the stifled handle 2, the other end is walked around second plug respectively and is closed and be fixed on the heavy bell 13 after pulley 92 and first plug are closed pulley 91, and heavy bell 13 is pulled away from ground.Described slide rail 6 is 12 °～20 ° with the angle of horizontal plane.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; do not breaking away under the design prerequisite of the present invention; common engineering technical personnel make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.
Claims (9)
1. chromium cobalt iron alloy is characterized in that: comprise following composition and content:
The composition weight percent
Nickel 1.92%～10.59%
Chromium 2.63%～20.10%
Cobalt 0.04%～0.22%
Silicon 1.35%～3.41%
Manganese 0.06%～0.68%
Sulphur 0～0.06%
Phosphorus 0～0.045%
Iron surplus.
2. according to the described chromium cobalt iron alloy of claim 1, it is characterized in that: the content of following composition is:
The composition weight percent
Sulphur 0～0.043%
Phosphorus 0～0.03%.
3. the smelting technology method of a chromium cobalt iron alloy as claimed in claim 1 or 2 is characterized in that: comprise the steps:
1) nickel network cobalt tantalite power is dried after entering the balling disc balling-up after coke powder, wilkinite advance cylinder mixer batch mixing, enter sinter machine again, utilize blast furnace gas to fire pellet, wherein:
The weight percent that wilkinite accounts for total amount is 0～3%
The weight percent that coke powder accounts for total amount is 3%～6%;
2) with nickel chromium triangle cobalt ore powder and coke powder, ground dolomite, fluorite powder, remove phosphorus additive, calcium lime powder advances cylinder mixer batch mixing, makes ball, enters sinter machine again, utilizes blast furnace gas to fire the high magnesia agglomerate, wherein:
The weight percent that coke powder accounts for total amount is 3%～6%
The weight percent that the fluorite powder accounts for total amount is 0～0.3%
The weight percent that ground dolomite accounts for total amount is 9%～15%
The weight percent that accounts for total amount except that phosphorus additive is 0～4%
The weight percent that calcium lime powder accounts for total amount is 0～3%;
3) with pellet and high magnesia agglomerate mutually blended prepare burden into the blast-furnace smelting chromium cobalt iron alloy, wherein:
The weight percent that pellet accounts for total amount is 10%～35%
All the other are the high magnesia agglomerate.
4. according to the smelting technology method of the described chromium cobalt iron alloy of claim 3, it is characterized in that: described with pellet and high magnesia agglomerate mutually the stockline degree of depth of blended batching in blast furnace be 0.8～3.5m.
5. the smelting technology method of a chromium cobalt iron alloy as claimed in claim 1 or 2 is characterized in that: comprise the steps:
1) with nickel chromium triangle cobalt ore powder and coke powder, ground dolomite, fluorite powder, remove phosphorus additive, calcium lime powder advances cylinder mixer batch mixing, makes ball, enters sinter machine again, utilizes blast furnace gas to fire the high magnesia agglomerate, wherein:
The weight percent that coke powder accounts for total amount is 3%～6%
The weight percent that the fluorite powder accounts for total amount is 0～0.3%
The weight percent that ground dolomite accounts for total amount is 9%～15%
The weight percent that accounts for total amount except that phosphorus additive is 0～4%
The weight percent that calcium lime powder accounts for total amount is 0～3%;
2) nickel chromium triangle cobalt ore powder is entered the revolution cellar for storing things with addition of fluorite powder, ground dolomite, magnesium oxide slag and be fired into nickel chromium triangle cobalt ore slag, wherein:
The weight percent that the fluorite powder accounts for total amount is 0～6%, and the weight percentage of the Calcium Fluoride (Fluorspan) in the fluorite powder is 50%～75%
The weight percent that ground dolomite accounts for total amount is 1%～5%, and the magnesian weight percentage in the ground dolomite is 17%～21%
The weight percent that the magnesium oxide slag accounts for total amount is 0～15%, and the magnesian weight percentage in the magnesium oxide slag is 30%～40%;
3) prepare burden into the blast-furnace smelting chromium cobalt iron alloy with nickel chromium triangle cobalt ore slag and high magnesia agglomerate, the weight ratio of nickel chromium triangle cobalt ore slag and high magnesia agglomerate is:
The weight percent that nickel chromium triangle cobalt ore slag accounts for total amount is 15%～40%
All the other are the high magnesia agglomerate.
6. according to the smelting technology method of the described chromium cobalt iron alloy of claim 5, it is characterized in that: described with nickel chromium triangle cobalt ore slag and high magnesia agglomerate mutually the stockline degree of depth of blended batching in blast furnace be 0.8～3.5m.
7. a blast furnace of producing the described chromium cobalt iron alloy of claim 1 blocks up cinder notch equipment, comprise stifled handle (2) and be installed in the plug (1) that adapts with slag notch on the stifled handle (2), it is characterized in that: the stifled cinder notch equipment of the blast furnace of described chromium cobalt iron alloy also is provided with slide rail (6), coaster (14), coaster (14) can reciprocatingly slide along slide rail (6) by drive unit, coaster (14) is fixed together with stifled handle (2), stifled handle (2) inner chamber and plug (1) intracavity inter-connection, stifled handle (2) inside is provided with cooling-water duct, stifled handle (2) is provided with cooling water inlet pipe (3) and cooling water outlet pipe (4), and cooling water inlet pipe (3) is connected with cooling-water duct respectively with cooling water outlet pipe (4).
8. according to the stifled cinder notch equipment of the described blast furnace of claim 7, it is characterized in that: described stifled handle (2) is a tubular, be provided with end cap (5) with the relative end that plug is installed, the structure of described cooling-water duct is, be provided with a cooling water inlet pipe (3) and cooling water outlet pipe (4) in the inside of stifled handle (2), cooling water inlet pipe (3) one ends are fixed on the end cap (5) and stretch out end cap (5), the other end is fixed on the inner disc of plug (1), have some through holes on the disc of plug (1) inside, the structure of described drive unit is, end at coaster (14) is fixed with a wireline, wireline is wound on the tackleblock that is fixed on the slide rail (6), the other end of wireline is fixed on the hoisting mechanism, the other end at coaster (14) is fixed with another wireline, and wireline is walked around another tackleblock that is fixed on the slide rail (6) and linked to each other with heavy bell.
9. according to the stifled cinder notch equipment of the described blast furnace of claim 8, it is characterized in that: described slide rail (6) is 12 °～20 ° with the angle of horizontal plane.
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| CNB2006101715632A CN100432265C (en) | 2006-12-30 | 2006-12-30 | Nickle chromium cobalt iron alloy and its smelting tech. process and equipment of blast furnace opening of blocking slag |
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| CNB2006101715632A CN100432265C (en) | 2006-12-30 | 2006-12-30 | Nickle chromium cobalt iron alloy and its smelting tech. process and equipment of blast furnace opening of blocking slag |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB936589A (en) * | 1960-11-25 | 1963-09-11 | Alfred Gordon Evans Robiette | Improvements in and relating to the manufacture of ferro-manganese and ferro-silico-manganese |
| US4652307A (en) * | 1984-03-16 | 1987-03-24 | Herman Gardner | Refining and/or alloying of a 3 percent to 6 percent carbon iron, cobalt, or nickel on a molten silver surface at temperatures 1000°C° C. producing an iron cobalt or nickel powder, or their alloys and a petroleum product |
| CN1067273A (en) * | 1992-04-21 | 1992-12-23 | 王新山 | W-Re 3W-Re 25The thermopair compensating lead wire |
| CN1392278A (en) * | 2002-05-31 | 2003-01-22 | 庞茂清 | Nickel-cobalt-iron alloy and its producing method |
| CN1847440A (en) * | 2006-04-25 | 2006-10-18 | 吴江市东大铸造有限公司 | Nickel-chromium-iron alloy and production method thereof |
-
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- 2006-12-30 CN CNB2006101715632A patent/CN100432265C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB936589A (en) * | 1960-11-25 | 1963-09-11 | Alfred Gordon Evans Robiette | Improvements in and relating to the manufacture of ferro-manganese and ferro-silico-manganese |
| US4652307A (en) * | 1984-03-16 | 1987-03-24 | Herman Gardner | Refining and/or alloying of a 3 percent to 6 percent carbon iron, cobalt, or nickel on a molten silver surface at temperatures 1000°C° C. producing an iron cobalt or nickel powder, or their alloys and a petroleum product |
| CN1067273A (en) * | 1992-04-21 | 1992-12-23 | 王新山 | W-Re 3W-Re 25The thermopair compensating lead wire |
| CN1392278A (en) * | 2002-05-31 | 2003-01-22 | 庞茂清 | Nickel-cobalt-iron alloy and its producing method |
| CN1847440A (en) * | 2006-04-25 | 2006-10-18 | 吴江市东大铸造有限公司 | Nickel-chromium-iron alloy and production method thereof |
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