CN109332711A - A kind of vanadium ferrotianium powder producing method - Google Patents
A kind of vanadium ferrotianium powder producing method Download PDFInfo
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- CN109332711A CN109332711A CN201811267321.2A CN201811267321A CN109332711A CN 109332711 A CN109332711 A CN 109332711A CN 201811267321 A CN201811267321 A CN 201811267321A CN 109332711 A CN109332711 A CN 109332711A
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- 239000000843 powder Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 44
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 36
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000889 atomisation Methods 0.000 claims abstract description 114
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 claims abstract description 94
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims abstract description 86
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- MRHSJWPXCLEHNI-UHFFFAOYSA-N [Ti].[V].[Fe] Chemical compound [Ti].[V].[Fe] MRHSJWPXCLEHNI-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 28
- 239000010936 titanium Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 22
- 238000007885 magnetic separation Methods 0.000 claims abstract description 18
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 16
- 238000000137 annealing Methods 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000001914 filtration Methods 0.000 claims description 17
- 238000004260 weight control Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- 238000004062 sedimentation Methods 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 10
- 238000007600 charging Methods 0.000 claims description 10
- 238000009692 water atomization Methods 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 8
- 238000004401 flow injection analysis Methods 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- 239000011265 semifinished product Substances 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 claims description 5
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 9
- 238000005406 washing Methods 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000001376 precipitating effect Effects 0.000 description 6
- 238000003723 Smelting Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000002663 nebulization Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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- 238000010079 rubber tapping Methods 0.000 description 1
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- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention provides a kind of vanadium ferrotianium powder producing method, includes the following steps: that electrosmelting of intermediate frequency is added in steel scrap by (1), then with V-Ti tune steel, makes the chemical component of vanadium titanium steel water smelted are as follows: 0.1~0.5%V；0.06~0.6%Ti；0.4%C；Si≤0.40%；Mn≤0.4%；P≤0.005%；S≤0.005%；In the vanadium titanium steel water injection atomization feed pot that step (1) has been smelted, continuous adjusting component control are as follows: 0.1~0.5%V；0.06~0.6%Ti；0.15%~0.4%C；Si≤0.4%；Mn≤0.4%；P≤0.005%；S≤0.001%；Temperature is 1650~1680 DEG C；(3) the vanadium titanium steel water of step (2) enters atomizer and is atomized；(4) receiving hopper after being atomized send magnetic separation drying line to carry out magnetic separation, drying, annealing, sieve, be packaged to be atomization vanadium titanium-iron powder.This method of the present invention can be realized the production of the vanadium titanium atomized iron powder of multiple performance standard, and simple production process, obtained original washing powder quality are improved compared with prior art, provide very good material for downstream production.
Description
Technical field
The present invention relates to the water atomization technique of field of powder metallurgy more particularly to a kind of vanadium ferrotianium powder producing methods.
Background technique
Vanadium titanium-iron powder is used for manufactured parts, has many advantages, such as corrosion-resistant, and intensity is high, currently, main pass through smelting vanadium titanium magnetic
Iron ore preparation, as CN106987672A a kind of low-grade vanadium titano-magnetite powder production natural micro alloy reduced iron powder method,
After v-ti magnetite miberal powder, sodium sulphate, fluorite and semi-coke are transferred to batch mixer mixing, reducing material is obtained, is packed into together with reducing agent
In fire-resistant can, the laggard tunnel oven of tinning is restored, and the v-ti magnetite miberal powder through restoring is carried out grinding, after magnetic separation, is entered
Table concentration, the iron ore concentrate after shaking table enter concentrate pool thickening, enter rotary drying oven drying, obtain iron ore concentrate dry
Material；The rich vanadium titanium material of tailing and a magnetic separation after shaking table enters secondary magnetic separation, obtains concentrate richness vanadium titanium material iron ore；By iron ore concentrate
It is sent into intermediate frequency furnace melting after dry material briquetting, giant atomization is carried out to the molten steel of fusing, obtains natural micro alloy reduced iron
Powder.Advantage is: this method rational technology, and vanadium titano-magnetite comprehensive utilization ratio is high, and production product iron powder purity is high, is processed into part
Intensity is high afterwards, hardness is good.This method produces to obtain microalloy reduced iron powder by smelting process using vanadium titano-magnetite, in the presence of
Problem is stated, 1 production technology is complicated, first to produce concentrate richness vanadium titanium material；2 obtain iron powder ingredient composition and ratio it is unique, cannot
Meet the production of the part of different performance requirement；Atomized iron powder is the hydraulic atomized production of molten iron or steel, due to production
Impurity is not infiltrated in the process, it is relatively pure, and the iron powder and atomization comminuted steel shot that atomization generates, there is high apparent density, pressure
Contracting function admirable is the best raw material of pressing machinery part, and therefore, water mist micronizing technology is field of powder metallurgy industry metaplasia
The common technology of production, method are that molten steel or molten steel high-temperature fusion are adjusted each component content of molten steel, steel stream high pressure mist of coming out of the stove
Change water by special nozzle, brute force attack is cooling in addition, and high-temperature molten steel or steel flow are struck into superfine powder, then
By magnetic separation, drying, annealing, screening, packaging, the industrial production of production iron powder or comminuted steel shot is completed.Such as Publication No.
CN104249157A, a kind of entitled continuous water atomization process of height for producing steel powder, the invention continuously infuse molten steel
Enter in moderate soak heating device, continuous adjusting component and temperature, while atomization, temperature measuring equipment continuously provides temperature signal
To control system, tundish temperature is controlled at 1550-1580 DEG C；On the big tank chair pedestal of moderate soak heating device
Weighing system continuously displays remaining Metal Weight in big tank, guarantees that remaining Metal Weight is not less than 5 tons in big tank.The invention
Using 2 double magnetic separation drying production lines, and " two works one are standby " 3 high-pressure pumps are equipped with, realize steel powder water atomization continuously not
It is interrupted operation；By real time temperature measurement feedback control atomization temperature, make the more uniform consistent purpose of the physical and chemical performance of original washing powder；
Using reasonable jet size and leakage eye diameter and atomizing pressure, tapping temperature is reduced, nebulization efficiency is improved, improves the matter of original washing powder
Amount.
Summary of the invention
Present invention seek to address that at present with v-ti magnetite miberal powder production vanadium titanium atomized iron powder there are the problem of, provide one kind
It is atomized the production method of vanadium titanium-iron powder, this method can be realized the production of the atomization vanadium titanium-iron powder of multiple performance standard, and produce
Simple process, obtained original washing powder quality are improved compared with prior art, provide very good material for downstream production.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of vanadium ferrotianium powder producing method, includes the following steps:
1) steel scrap is added electrosmelting of intermediate frequency, then with V-Ti tune steel, the change for the vanadium titanium steel water for having smelted middle frequency furnace
It studies and is divided into: 0.1~0.5%V；0.06~0.6%Ti；0.4%C；Si≤0.40%；Mn≤0.4%；P≤0.005%；S
≤ 0.005%；
2) the vanadium titanium steel water that middle frequency furnace has been smelted is continuously injected into atomization feed pot, its Composition Control of continuous adjusting component
Are as follows: 0.1~0.5%V；0.06~0.6%Ti；0.15%~0.4%C；Si≤0.4%；Mn≤0.4%；P≤0.005%；S≤
0.001%；And the temperature for controlling the vanadium titanium steel water in atomization feed pot is 1650~1680 DEG C；
(3) the vanadium titanium steel water that step (2) adjusts ingredient and temperature is flowed down from the leakage eye of atomization feed pot into atomizer, is used
High pressure water flow injection vanadium titanium steel water is atomized；
(4) the vanadium titanium-iron powder semi-finished product being atomized in atomizer fall into the receiving hopper below atomizer from atomizer, send magnetic
Drying line is selected to carry out magnetic separation, drying, annealing, sieve, be packaged to be atomization vanadium titanium-iron powder.
In step (2), the temperature of vanadium titanium steel water is controlled by temperature control system, the temperature control system includes controller, is surveyed
Warm instrument and heating in medium frequency circle, the temperature feedback of the controller and temperature measurer electrical connection to detect temperature measurer is to control
Device；Refractory material is arranged in lining in the tank body of the atomization feed pot, and the heating in medium frequency circle is arranged around tank wall, and intermediate frequency adds
Gas ket is connected with power supply, and the controller connect to control the starting and closing of heating in medium frequency circle with power sourced electric, and then controls
Temperature in system atomization feed pot；The temperature of vanadium titanium steel water in the temperature measurer detection atomization feed pot.
In step (3), it is described atomization feed pot leakage eye diameter be 15~20mm of ￠, circumferential weld having a size of 55~65,
Vanadium titanium steel water atomization speed is 100~120kg/min；The pressure of high pressure water flow is 12~13MPa, 60~70m of flow3/ h, water
19~25 ° of spray angle of stream；In atomization process, the vanadium titanium steel water management in feed pot is atomized the 1/3 of atomization charging tankage size
More than；
The amount for being atomized the vanadium titanium steel water in feed pot is controlled by weight control system, and the weight control system includes being mounted on
Bracket and weight sensor on atomization charging tank wall, the weight sensor are mounted on bracket, the weight sensor
It is electrically connected with controller to which the weight being atomized in feed pot is fed back to controller, the controller is also electric with middle frequency furnace
Gas connection, when the weight being atomized in feed pot 1/3 less than atomization feed pot, controller controls middle frequency furnace and feeds to atomization
Vanadium titanium steel water is injected in tank.
Further, it the method also includes being atomized the recycling of waste water and recycling, is recycled by Sewage treatment
System, the system comprises one face of slope of lower section for being located at atomizer, the lower end of face of slope connects sedimentation and filtration ditch, precipitating
Filtering is connected with reservoir, and the water of reservoir is for being atomized vanadium titanium steel water.
A kind of production system being atomized vanadium titanium-iron powder, including middle frequency furnace, for receiving vanadium titanium steel water in middle frequency furnace
It is atomized feed pot, the high-pressure hydraulic pump that the molten steel for flowing down to the leakage eye for being atomized feed pot is atomized, adds for controlling atomization
Atomizer is arranged in the lower section of the temperature control system of vanadium titanium steel coolant-temperature gage in batch can, the atomization feed pot, and the leakage eye protrudes into
Into atomizer, the atomizer of the high-pressure hydraulic pump is extend into atomizer, is provided with receiving hopper below the atomizer；
The temperature control system includes controller, temperature measurer and heating in medium frequency circle, the controller and temperature measurer electrical connection to
The temperature feedback that temperature measurer is detected is to controller；Refractory material is arranged in lining in the tank body of the atomization feed pot, described
Heating in medium frequency circle is arranged around tank wall, and heating in medium frequency circle is connected with power supply, and the controller connect to control with power sourced electric
The starting and closing of heating in medium frequency circle processed, and then control temperature in atomization feed pot；In the temperature measurer detection atomization feed pot
The temperature of vanadium titanium steel water.
The system also includes weight control system control, the weight control system includes being mounted on outside atomization feed pot
Bracket and weight sensor on wall, the weight sensor are mounted on bracket, and the weight sensor and controller are electrical
To which the weight being atomized in feed pot is fed back to controller, the controller is also electrically connected with middle frequency furnace for connection, works as mist
When changing the weight in feed pot less than specified amount, controller controls middle frequency furnace and injects vanadium titanium steel water into atomization feed pot.
Further, the system also includes atomization waste water recycling and recycle, recycled by Sewage treatment
System, the system comprises one face of slope of lower section for being located at atomizer, the lower end of face of slope connects sedimentation and filtration ditch, precipitating
Filtering is connected with reservoir, and the water of reservoir is for being atomized vanadium titanium steel water.
The temperature measuring equipment is far infrared temperature measurement instrument, is mounted on the side wall of atomization feed pot, measurement point is beaten in vanadium titanium steel
It is waterborne, monitor the temperature in vanadium titanium steel water flow.
The diameter of the leakage eye is 15~20mm of ￠, and circumferential weld is having a size of 55~65；The atomizer of the high-pressure hydraulic pump
Spray angle be 19~25 °.
Compared with prior art, the beneficial effects of the present invention are:
1, the vanadium titanium-iron powder of the prior art is prepared by smelting the method for vanadium titano-magnetite, and the present invention breaks conventional production methods,
It is carried out after adjusting steel to reach certain requirement using after scrap melting with vanadium titanium, vanadium titanium-iron powder is obtained by hydraulic atomized molten steel,
New process, and the physical chemistry of the vanadium titanium-iron powder original washing powder obtained using this method are provided for industrial production vanadium titanium-iron powder
It can be more uniform consistent；Iron powder purity is high, is processed into after part that intensity is high, hardness is good.The present invention uses steel scrap for raw material, realizes
Waste utilization, and can in a certain range with vanadium titanium steel water its each component content obtained after scrap melting with V-Ti tune steel
It adjusts, therefore the vanadium titanium-iron powder of various performance standards can be prepared, to realize the production of the part of various performance requirements.After atomization
Steel powder pass through magnetic separation, dehydration and drying, final production goes out that performance is uniform, water atomization vanadium titanium-iron powder of high quality
Mao Fen.The hair powder apparent density produced using present invention process method is lower, and granularity is more uniform consistent, is conducive to improve powder
The final product quality of last metallurgy component.
2, atomization process compared with prior art, such as CN104249157A, molten steel need the Heat preservation in tundish,
Then atomization feed pot is entered back into, in this way, this just needs a big ladle, increases equipment, temperature control system is integrated in by the present invention
It is atomized in feed pot, no longer needs to save equipment cost using big ladle.
3, of the invention to leak the diameter of eye by control atomization feed pot for 15~20mm of ￠, circumferential weld is having a size of 55~65
Silk, vanadium titanium steel water atomization speed are 100~120kg/min；The pressure of high pressure water flow is 12~13MPa, 60~70m of flow3/ h,
19~25 ° of water flow jet angle；In atomization process, the vanadium titanium steel water management in feed pot is atomized the 1/ of atomization charging tankage size
3 or more this whole parameter improve the quality of original washing powder to improve nebulization efficiency.
4, face of slope is arranged in the lower section of the atomizer of the method for the present invention, and the lower end of face of slope connects sedimentation and filtration ditch,
Precipitating filtering is connected with reservoir, and the water being atomized in this way flows into sedimentation and filtration ditch along slope, is pumped into reservoir after precipitating filtering
It is used further to nebulisation operation, cycling utilization of wastewater saves water, hygienic environment-protecting.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention；
Appended drawing reference in attached drawing are as follows: 1 middle frequency furnace, 2 weight sensors, 3 heating in medium frequency circles, metering bracket, 5 atomization chargings
Tank 6 leak eye, 7 temperature measurers, 8 high-pressure hydraulic pumps, 9 atomizers, 10 atomizers, 11 receiving hoppers, 12 blocks, 13 sedimentation and filtration ditches,
14 suction pumps, 15 reservoirs, 16 controllers.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
Embodiment 1
A kind of vanadium ferrotianium powder producing method, includes the following steps:
(1) steel scrap is added electrosmelting of intermediate frequency, then with V-Ti tune steel, the change for the vanadium titanium steel water for having smelted middle frequency furnace
It studies and is divided into: 0.1%V；0.5%Ti；0.4%C；0.4%Si；0.4%Mn；0.005%P；0.005%S；
2) the vanadium titanium steel water that middle frequency furnace has been smelted is continuously injected into atomization feed pot, its Composition Control of continuous adjusting component
Are as follows: 0.1%V；0.06%Ti；0.15%C；Si0.3%；Mn0.3%；P0.004%；0.001%S；And control atomization charging
The temperature of vanadium titanium steel water in tank is 1680 DEG C；
(3) the vanadium titanium steel water that step (2) adjusts ingredient and temperature is flowed down from the leakage eye of atomization feed pot into atomizer, is used
High pressure water flow injection vanadium titanium steel water is atomized；
(4) the vanadium titanium-iron powder semi-finished product being atomized in atomizer fall into the receiving hopper below atomizer from atomizer, send magnetic
Drying line is selected to carry out magnetic separation, drying, annealing, sieve, be packaged to be atomization vanadium titanium-iron powder.
Embodiment 2
A kind of vanadium ferrotianium powder producing method, includes the following steps:
(1) steel scrap is added electrosmelting of intermediate frequency, then with V-Ti tune steel, the change for the vanadium titanium steel water for having smelted middle frequency furnace
It studies and is divided into: 0.5%V；0.6%Ti；0.3%C；0.3%Si；0.3%Mn；0.004%P；0.004%S；
(2) the vanadium titanium steel water that middle frequency furnace has been smelted is continuously injected into atomization feed pot, its Composition Control of continuous adjusting component
Are as follows: 0.1%V；0.06%Ti；0.25%C；0.2%Si；0.2%Mn；0.003%P；0.0005%S；And control atomization
The temperature of vanadium titanium steel water in feed pot is 1650 DEG C；
(3) the vanadium titanium steel water that step (2) adjusts ingredient and temperature is flowed down from the leakage eye of atomization feed pot into atomizer, is used
High pressure water flow injection vanadium titanium steel water is atomized；
(4) the vanadium titanium-iron powder semi-finished product being atomized in atomizer fall into the receiving hopper below atomizer from atomizer, send magnetic
Drying line is selected to carry out magnetic separation, drying, annealing, sieve, be packaged to be atomization vanadium titanium-iron powder.
Embodiment 3
A kind of vanadium ferrotianium powder producing method, includes the following steps:
(1) steel scrap is added electrosmelting of intermediate frequency, then with V-Ti tune steel, the change for the vanadium titanium steel water for having smelted middle frequency furnace
It studies and is divided into: 0.3%V；0.3%Ti；0.2%C；0.2%Si；0.2%Mn；0.002%P；0.002%S；
2) the vanadium titanium steel water that middle frequency furnace has been smelted is continuously injected into atomization feed pot, continuous adjusting component simultaneously controls are as follows:
0.1%V；0.06%Ti；0.3%C；0.1%Si≤；0.1%Mn；0.001%P；0.0008%S；And control atomization charging
The temperature of vanadium titanium steel water in tank is 1680 DEG C；
(3) the vanadium titanium steel water that step (2) adjusts ingredient and temperature is flowed down from the leakage eye of atomization feed pot into atomizer, is used
High pressure water flow injection vanadium titanium steel water is atomized；
(4) the vanadium titanium-iron powder semi-finished product being atomized in atomizer fall into the receiving hopper below atomizer from atomizer, send magnetic
Drying line is selected to carry out magnetic separation, drying, annealing, sieve, be packaged to be atomization vanadium titanium-iron powder.
Embodiment 4
A kind of vanadium ferrotianium powder producing method includes the following steps:
(1) steel scrap is added electrosmelting of intermediate frequency, then with V-Ti tune steel, the change for the vanadium titanium steel water for having smelted middle frequency furnace
It studies and is divided into: 0.2%V；0.1%Ti；0.4%C；；0.4%Si；0.4%Mn；0.005%P；0.005%S；
2) the vanadium titanium steel water that middle frequency furnace has been smelted is continuously injected into atomization feed pot, continuous adjusting component simultaneously controls are as follows:
0.1%V；0.06%Ti；0.15%C；0.4%Si；0.4%Mn；0.005%P；0.001%S；And control atomization feed pot
In vanadium titanium steel water temperature be 1670 DEG C；
(3) the vanadium titanium steel water that step (2) adjusts ingredient and temperature is flowed down from the leakage eye of atomization feed pot into atomizer, is used
High pressure water flow injection vanadium titanium steel water is atomized；
(4) the vanadium titanium-iron powder semi-finished product being atomized in atomizer fall into the receiving hopper below atomizer from atomizer, send magnetic
Drying line is selected to carry out magnetic separation, drying, annealing, sieve, be packaged to be atomization vanadium titanium-iron powder.
Embodiment 5
A kind of vanadium ferrotianium powder producing method, includes the following steps:
(1) steel scrap is added electrosmelting of intermediate frequency, then with V-Ti tune steel, the change for the vanadium titanium steel water for having smelted middle frequency furnace
It studies and is divided into: 0.4%V；0.4%Ti；0.3%C；；0.3%Si；0.3%Mn；0.0035%P；0.0035%S；
2) the vanadium titanium steel water that middle frequency furnace has been smelted is continuously injected into atomization feed pot, continuous adjusting component simultaneously controls are as follows:
0.1%V；0.06%Ti；0.2%C；0.2%Si；0.2%Mn；0.002%P；0.0005%S；And control atomization feed pot
In vanadium titanium steel water temperature be 1660 DEG C；
(3) the vanadium titanium steel water that step (2) adjusts ingredient and temperature is flowed down from the leakage eye of atomization feed pot into atomizer, is used
High pressure water flow injection vanadium titanium steel water is atomized；
(4) the vanadium titanium-iron powder semi-finished product being atomized in atomizer fall into the receiving hopper below atomizer from atomizer, send magnetic
Drying line is selected to carry out magnetic separation, drying, annealing, sieve, be packaged to be atomization vanadium titanium-iron powder.
Embodiment 6
The present embodiment is the specific control method of specific temperature control system, is suitable on the basis of above-described embodiment 1-5, specifically
It is as follows:
The temperature control system includes controller 16, temperature measurer 7 and heating in medium frequency circle 3, and the controller 16 electrically connects with temperature measurer 7
The temperature feedback for connecing to detect temperature measurer 7 is to controller 16；Fire resisting is arranged in lining in the tank body of the atomization feed pot 5
Material, the heating in medium frequency circle 3 are arranged around tank wall, and heating in medium frequency circle 3 is connected with power supply, the controller 16 and power supply electricity
Gas connection controls temperature in atomization feed pot 5 to control the starting and closing of heating in medium frequency circle 3；The temperature measurer 7 is examined
Survey the temperature of vanadium titanium steel water in atomization feed pot 5.
In the present embodiment, the diameter of the atomization feed pot leakage eye is ￠ 15mm, and circumferential weld is having a size of 55, vanadium titanium steel water mist
Change speed is 100kg/min；The pressure of high pressure water flow is 13MPa, flow 60m3/ h, 25 ° of water flow jet angle；Atomization process
In, the vanadium titanium steel water management in feed pot is atomized 1/3 or more of atomization charging tankage size.
In the present embodiment, the amount for being atomized the vanadium titanium steel water in feed pot is controlled by weight control system, the weight control
System processed includes being mounted on weight sensor 2 and the bracket 4 being mounted on atomization 5 outer wall of feed pot, the weight sensor 2
On bracket 4, the weight being atomized in feed pot 5 is fed back to control with the electrical connection of controller 16 by the weight sensor 2
Device 16, the controller 16 are also electrically connected with middle frequency furnace 1, when the weight in atomization feed pot 5 is less than atomization feed pot
When 1/3, controller 16 controls middle frequency furnace 1 and injects vanadium titanium steel water into atomization feed pot 5.
Embodiment 7
The present embodiment and the difference of embodiment 6 are: in the present embodiment, the diameter of the atomization feed pot leakage eye is ￠ 20mm,
For circumferential weld having a size of 65, vanadium titanium steel water atomization speed is 120kg/min；The pressure of high pressure water flow is 13MPa, flow 70m3/ h,
22 ° of water flow jet angle.
Embodiment 8
The present embodiment and the difference of embodiment 6 are: in the present embodiment, the diameter of the atomization feed pot leakage eye is ￠ 17mm,
For circumferential weld having a size of 60, vanadium titanium steel water atomization speed is 110kg/min；The pressure of high pressure water flow is 12MPa, flow 65m3/ h,
19 ° of water flow jet angle.
Embodiment 7
Further improvement of the present embodiment on the basis of embodiment 1-7, the method also includes being atomized the recycling and circulation of waste water
It utilizes, by Sewage treatment cyclic utilization system, the system comprises one face of slope 14 of lower section for being located at atomizer 10, inclinations
Block 12 is provided in slope surface 14 not move down toward slope surface for blocking receiving hopper 11；The lower end connection precipitating filtering of face of slope 14
Pond 13, sedimentation and filtration ditch 13 are connected with reservoir 15, and the water of reservoir 15 is for being atomized vanadium titanium steel water.
Embodiment 8
The present embodiment provides the specific production system of present invention production vanadium titanium-iron powder, structure is as follows: including middle frequency furnace 1, using
It is carried out in the molten steel for receiving the atomization feed pot 5 of vanadium titanium steel water in middle frequency furnace 1, being flowed down for the leakage eye 6 to atomization feed pot 5
The high-pressure hydraulic pump 8 of atomization, for controlling the temperature control system of vanadium titanium steel coolant-temperature gage in atomization feed pot 5, the atomization charging
Atomizer 10 is arranged in the lower section of tank 5, and the leakage eye 6 is extend into atomizer 10, and the atomizer 9 of the high-pressure hydraulic pump 8 protrudes into
Into atomizer 10, the lower section of the atomizer 10 is provided with receiving hopper 11；The temperature control system includes controller 16, is surveyed
Warm instrument 7 and heating in medium frequency circle 3, temperature feedback of the controller 16 with the electrical connection of temperature measurer 7 to detect temperature measurer 7
To controller 16；Refractory material is arranged in lining in the tank body of the atomization feed pot 5, and the heating in medium frequency circle 3 is around tank wall
Setting, heating in medium frequency circle 3 are connected with power supply, and the controller 16 connect to control opening for heating in medium frequency circle 3 with power sourced electric
Dynamic and closing, and then control temperature in atomization feed pot 5；The temperature of vanadium titanium steel water in the detection of the temperature measurer 7 atomization feed pot 5
Degree.
Wherein, the system also includes weight control system, the weight control system includes weight sensor 2 and installation
Bracket 4 on atomization 5 outer wall of feed pot, the weight sensor 2 are mounted on bracket 4, the weight sensor 2 and control
The electrical connection of device 16 to which the weight being atomized in feed pot 5 is fed back to controller 16, the controller 16 also with middle frequency furnace 1
Electrical connection, when the weight being atomized in feed pot 5 is less than specified amount, controller 16 controls middle frequency furnace 1 to atomization feed pot 5
Middle injection vanadium titanium steel water.
The system also includes the recycling of atomization waste water and recycle, it is described by Sewage treatment cyclic utilization system
System includes one face of slope 14 of lower section positioned at atomizer 10, and the lower end of face of slope 14 connects sedimentation and filtration ditch 13, precipitating
Filtering ponds 13 are connected with reservoir 15, and the water of reservoir 15 is for being atomized vanadium titanium steel water.
The temperature measurer 7 is far infrared temperature measurement instrument, is mounted on the side wall of atomization feed pot 5, measurement point is beaten in vanadium titanium steel
It is waterborne, monitor the temperature in vanadium titanium steel water flow.
The diameter of the leakage eye is 15~20mm of ￠, and circumferential weld is having a size of 55~65；The atomizer of the high-pressure hydraulic pump
Spray angle be 19~25 °.
Using the detailed process of present system production vanadium titanium-iron powder are as follows:
The vanadium titanium steel water smelted through middle frequency furnace 1 successively injects in atomization feed pot 5；After atomization starts, vanadium titanium steel water
The leakage eye 6 for being atomized feed pot 5 flows out, and the high pressure water flow got by high-pressure pump 8 through atomizer 9 is by vanadium ferrotianium liquid in atomizer
It is broken into fine droplet in 10, later falls into receiving hopper 11, then magnetic separation drying line is sent to carry out magnetic separation, dehydration, drying, annealing, sieve
Divide, packaging, completes the industrial production of vanadium titanium-iron powder.
4, before atomization, while opening temperature control system and weight control system, temperature measurer 7 continuously mention temperature signal
Supply controller 16, by atomization 5 temperature of feed pot control at 1650 DEG C；Weight control system continuously displays in atomization feed pot 5
The good vanadium titanium steel water of subsequent smelting is constantly injected atomization feed pot 5 by remaining Metal Weight, system, guarantees 3 tons of atomization chargings
Remaining Metal Weight is maintained at 1 ton or more in tank.
Claims (10)
1. a kind of vanadium ferrotianium powder producing method, characterized by the following steps:
(1) middle frequency furnace (1) melting is added in steel scrap, then with V-Ti tune steel, the vanadium titanium steel for having smelted middle frequency furnace (1)
The chemical component of water are as follows: 0.1~0.5%V；0.06~0.6%Ti；0.4%C；Si≤0.4%；Mn≤0.4%；P≤
0.005%；S≤0.005%；
2) the vanadium titanium steel water that middle frequency furnace (1) has been smelted is continuously injected into atomization feed pot (5), continuous adjusting component is simultaneously controlled
It is made as: 0.1%V；0.06%Ti；0.15%~0.4%C；Si≤0.4%；Mn≤0.4%；P≤0.005%；S≤0.001%；
And the temperature for controlling the vanadium titanium steel water in atomization feed pot (5) is 1650~1680 DEG C；
(3) the vanadium titanium steel water that step (2) adjusts ingredient and temperature is flowed down from the leakage eye (6) of atomization feed pot (5) into mist
Change device (10), is atomized with high pressure water flow injection vanadium titanium steel water；
(4) the vanadium titanium-iron powder semi-finished product being atomized in atomizer fall into the receiving hopper below atomizer from atomizer (10)
(11), magnetic separation drying line is sent to carry out magnetic separation, drying, annealing, sieve, be packaged to be atomization vanadium titanium-iron powder.
2. a kind of vanadium ferrotianium powder producing method according to claim 1, it is characterised in that: in step (2), pass through temperature
Control system controls the temperature of vanadium titanium steel water, and the temperature control system includes controller (16), temperature measurer (7) and heating in medium frequency circle (3),
The temperature feedback of the controller (16) and temperature measurer (7) electrical connection to detect temperature measurer (7) gives controller (16)；
Refractory material is arranged in lining in the tank body of atomization feed pot (5), and the heating in medium frequency circle (3) is arranged around tank wall, in
Frequency heating coil (3) is connected with power supply, and the controller (16) connect to control the starting of heating in medium frequency circle (3) with power sourced electric
And closing, and then control atomization feed pot (5) interior temperature；Described temperature measurer (7) detection atomization feed pot (5) interior vanadium titanium steel water
Temperature.
3. a kind of vanadium ferrotianium powder producing method according to claim 1, it is characterised in that: in step (3), the mist
The diameter for changing the leakage eye (6) of feed pot (5) is 15~20mm of ￠, and circumferential weld is having a size of 55~65, vanadium titanium steel water atomization speed
100~120kg/min；The pressure of high pressure water flow is 12~13MPa, 60~70m of flow3/ h, 19~25 ° of water flow jet angle；
In atomization process, the vanadium titanium steel water management in atomization feed pot (5) is 1/3 or more of atomization charging tankage size.
4. a kind of vanadium ferrotianium powder producing method according to claim 1, it is characterised in that: the vanadium titanium in atomization feed pot
The amount of molten steel is controlled by weight control system, and the weight control system includes and weight sensor (2) and is mounted on atomization
Bracket (4) on feed pot (5) outer wall, the weight sensor (2) are mounted on bracket (4), the weight sensor (2) with
Controller (16) electrical connection is to feed back to controller (16) weight being atomized in feed pot (5), the controller (16)
Also it is electrically connected with middle frequency furnace (1), when the weight being atomized in feed pot (5) 1/3 less than atomization feed pot (5), control
Device (16) controls middle frequency furnace and injects vanadium titanium steel water into atomization feed pot (5).
5. a kind of vanadium ferrotianium powder producing method according to claim 1, it is characterised in that: the method also includes atomizations
It the recycling of waste water and recycles, by Sewage treatment cyclic utilization system, the system comprises be located under atomizer (10)
The lower end of one face of slope of side (14), face of slope (14) connects sedimentation and filtration ditch (13), and sedimentation and filtration ditch (13) is connected with storage
Pond (15), the water of reservoir (15) is for being atomized vanadium titanium steel water.
6. a kind of production system of vanadium titanium-iron powder, including middle frequency furnace (1), for receiving vanadium titanium steel water in middle frequency furnace (1)
The high-pressure hydraulic pump (8) that atomization feed pot (5), the molten steel for flowing down to the leakage eye (6) of atomization feed pot (5) are atomized, is used
Mist is arranged in the lower section of the temperature control system of vanadium titanium steel coolant-temperature gage in control atomization feed pot (5), atomization feed pot (5)
Change device (10), the leakage eye (6) extend into atomizer (10), and the atomizer (9) of the high-pressure hydraulic pump (8) extend into atomization
In device (10), receiving hopper (11) are provided with below the atomizer (10)；The temperature control system includes controller (16),
Temperature measurer (7) and heating in medium frequency circle (3), the controller (16) and temperature measurer (7) electrical connection are to detect temperature measurer (7)
The temperature feedback arrived gives controller (16)；Refractory material is arranged in lining in the tank body of atomization feed pot (5), and the intermediate frequency adds
Gas ket (3) is arranged around tank wall, and heating in medium frequency circle (3) is connected with power supply, the controller (16) connect with power sourced electric from
And the starting and closing of heating in medium frequency circle (3) are controlled, and then control atomization feed pot (5) interior temperature；Temperature measurer (7) detection
It is atomized the temperature of vanadium titanium steel water in feed pot.
7. the production system of vanadium titanium-iron powder according to claim 7, it is characterised in that: the system also includes Weight controls
System, the weight control system includes weight sensor (2) and is mounted on the bracket (4) that atomization feeds on tank wall, described
Weight sensor (2) is mounted on bracket (4), and the weight sensor (2) and controller (16) electrical connection will be to be atomized
Weight in feed pot (5) is fed back to controller (16), and the controller (16) is also electrically connected with middle frequency furnace (1), works as mist
When changing the weight in feed pot (5) less than specified amount, controller (16) controls middle frequency furnace (1) note into atomization feed pot (5)
Enter vanadium titanium steel water.
8. the production system of vanadium titanium-iron powder according to claim 7, it is characterised in that: the system also includes atomization waste water
Recycling and recycle, by Sewage treatment cyclic utilization system, the system comprises the lower sections one for being located at atomizer (10)
The lower end of face of slope (14), face of slope (14) connects sedimentation and filtration ditch (13), and sedimentation and filtration ditch (13) is connected with reservoir
(15), the water of reservoir (15) is for being atomized vanadium titanium steel water.
9. the production system of vanadium titanium-iron powder according to claim 7, it is characterised in that: the temperature measurer (7) is far infrared
Temperature measurer is mounted on the side wall of atomization feed pot (5), and measurement point beats temperature waterborne in vanadium titanium steel, in monitoring vanadium titanium steel water flow
Degree.
10. the production system of vanadium titanium-iron powder according to claim 7, it is characterised in that: the diameter of leakage eye (6) is ￠
15~20mm, circumferential weld is having a size of 55~65；The spray angle of the atomizer (9) of the high-pressure hydraulic pump (8) is 19~25 °.
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Application publication date: 20190215 |