CN113373279A - Submerged arc refining slag for square billet LF refining and production process and equipment thereof - Google Patents
Submerged arc refining slag for square billet LF refining and production process and equipment thereof Download PDFInfo
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- CN113373279A CN113373279A CN202110662389.6A CN202110662389A CN113373279A CN 113373279 A CN113373279 A CN 113373279A CN 202110662389 A CN202110662389 A CN 202110662389A CN 113373279 A CN113373279 A CN 113373279A
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- submerged arc
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- 238000007670 refining Methods 0.000 title claims abstract description 92
- 239000002893 slag Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 25
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Inorganic materials [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 13
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 9
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 9
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 9
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 9
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 9
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 8
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 8
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 103
- 239000000463 material Substances 0.000 claims description 99
- 238000002156 mixing Methods 0.000 claims description 43
- 238000003756 stirring Methods 0.000 claims description 43
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 32
- 238000005096 rolling process Methods 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 25
- 238000012216 screening Methods 0.000 claims description 20
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 19
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 4
- 229910052788 barium Inorganic materials 0.000 claims description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000010459 dolomite Substances 0.000 claims description 4
- 229910000514 dolomite Inorganic materials 0.000 claims description 4
- 239000002440 industrial waste Substances 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 235000017550 sodium carbonate Nutrition 0.000 claims description 4
- 239000012798 spherical particle Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 18
- 239000010959 steel Substances 0.000 abstract description 18
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 229910014813 CaC2 Inorganic materials 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 15
- 238000007906 compression Methods 0.000 description 15
- 238000005187 foaming Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000720 Silicomanganese Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/076—Use of slags or fluxes as treating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crushing And Pulverization Processes (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of metallurgy, in particular to submerged arc refining slag for square billet LF refining, which comprises the following raw materials in percentage by weight: CaCO340-65% of MgO, 0-20% of SiO25-10% of BaCO30-20% of Na2CO30-10% of SiC, 0-15% of CaF20 to 15 percent of the total weight. The invention is mainly used for submerged arc of the billet in the LF refining process and uses carbonic acid (CaCO)3、BaCO3、Na2CO3、MgCO3) Etc. as main raw materials, carbonic acid is decomposed at high temperature after entering molten steel to generate a large amount of CO2Air bubbles simultaneously entrainedSiC, C, CaC2Iso-turn with CO2CO is generated by reaction, thereby obtaining a large amount of bubbles and realizing the purpose of submerged arc.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to submerged arc refining slag for square billet LF refining and a production process and equipment thereof.
Background
Along with the rapid increase of the recovery quantity of waste steel substances, particularly deformed steel bars for buildings, the recovery and utilization of waste deformed steel bars to smelt the silicomanganese steel is a future development trend; in order to reduce the production cost, part of steel enterprises adopt a process of refining after adding scrap steel in the square billet LF refining process, although the process can reduce the cost of per ton steel, the breakage phenomenon of a graphite electrode in the LF refining process is increased, the current transmission is unstable, the power consumption is high, the refining time is long, meanwhile, the service life of a steel ladle is sharply reduced due to electric arcs generated between the electrode and the scrap steel, and the noise pollution in the production process is serious;
in the LF refining process of the square billet, expert scholars have made a lot of researches and applications on refining submerged arc foaming, but the researches and the applications are only carried out aiming at the common refining process without adding scrap steel, and the submerged arc adding the scrap steel in the LF refining process of the square billet is not reported temporarily. (ii) a
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides submerged arc refining slag for square billet LF refining.
In order to achieve the purpose, the invention adopts the following technical scheme:
the submerged arc refining slag for square billet LF refining comprises the following raw materials in percentage by weight: CaCO340-65% of MgO, 0-20% of SiO25-10% of BaCO30-20% of Na2CO30-10% of SiC, 0-15% of CaF20-15% of the total weight;
the CaCO3Limestone, which may be synthetic or natural; the BaCO3Can be a commercial waste or a barium-containing waste; the Na is2CO3Is industrial soda ash; the MgO can be any one of magnesia, light-burned magnesia, magnesium dolomite or magnesite; the SiC can be any one of industrial smelting-grade silicon carbide or waste containing silicon carbide;the SiO2 may be any one of silica, quartz sand, or bentonite.
The invention also provides a production process of the submerged arc refining slag for square billet LF refining, which comprises the following steps;
step 1: pre-drying all the raw materials until the water content is within 0.5%, and proportionally adding the raw materials into a stirrer for mixing for 5-10 min;
step 2: putting the materials mixed in the step 1 into a high-pressure ball press to be pressed into spheroidal particles;
and step 3: and (3) introducing the materials pressed into balls in the step (2) into a vibrating screen for screening, wherein the screen plate is 3-40mm, the materials which do not meet the requirements are cleaned and then continuously recycled, and the spherical materials which meet the requirements are led out through the screen plate to be collected.
The invention also provides production equipment of the refining slag of the submerged arc for square billet LF refining, which comprises a mounting frame, a mixing mechanism, a ball pressing mechanism and a driving mechanism, wherein the mixing mechanism is mounted at the top end of the mounting frame;
the mixing mechanism comprises a mixing box, a feed hopper, a material pump and a stirring assembly, the mixing box is fixedly arranged at the top of the mounting frame, the feed hopper is fixedly arranged at the inlet end of the mixing box, the material pump is fixedly arranged at the outlet end of the mixing box, and the inlet end of the material pump is communicated with the interior of the mixing box; the stirring assembly comprises an inner tooth holder, two chain wheels, a chain, rolling gears, stirring impellers and stirring motors, wherein the inner tooth holder is fixedly arranged inside the mixing box, the number of the chain wheels is two, the two chain wheels are respectively and rotatably arranged at two ends of the inner side of the inner tooth holder, the two chain wheels are in transmission connection through the chain, the number of the rolling gears is a plurality, the rolling gears are uniformly distributed on the chain and are meshed with the chain, the rolling gears are meshed with the inner wall of the inner tooth holder, the number of the stirring impellers is a plurality, the stirring impellers are coaxially and fixedly connected with the corresponding rolling gears, the stirring motors are fixedly arranged at the outer side of the mixing box, and output shafts of the stirring motors are fixedly connected with the corresponding chain wheels;
the ball pressing mechanism comprises a ball pressing box, a drying assembly, a ball pressing assembly, a screening assembly and a discharge channel, the drying assembly, the ball pressing assembly and the screening assembly are arranged in the ball pressing box, and the discharge channel is fixedly arranged at the bottom of the ball pressing box; the drying assembly comprises a material guide seat, a plurality of rotating rollers, a plurality of shifting plates and drying lamps, the material guide seat is fixedly arranged at the top end of the inner side of the ball pressing box, the rotating rollers are rotatably arranged at the inner side of the material guide seat, the number of the shifting plates is a plurality, the shifting plates are uniformly and fixedly arranged at the outer side of the rotating rollers, and the drying lamps are fixedly arranged on the top wall of the inner side of the ball pressing box;
press the ball subassembly to include mounting panel, first compression roller, second compression roller, first gear, second gear, sleeve shaft and pivot, the quantity of mounting panel is two, first compression roller fixed mounting is between two mounting panels, two the mounting panel all rotates with press ball incasement wall to be connected, the quantity of second compression roller is a plurality of, and is a plurality of the second compression roller is around first compression roller evenly distributed, and all rotate and install between two mounting panels, the quantity and the second compression roller one-to-one of first gear, a plurality of first gear and the coaxial fixed connection of corresponding second compression roller, the second gear sets up between a plurality of first gears, and is a plurality of first gear all meshes with the second gear, the outside and the sleeve shaft fixed connection of second gear, the sleeve shaft runs through press ball incasement's inner wall, and is connected with press ball incasement rotation, the pivot runs through press ball incasement's inner wall, The ball pressing box is rotatably connected with the ball pressing box, and one end of the rotating shaft is fixedly connected with one mounting plate;
the screening assembly comprises a material guide plate, a sieve plate, a material port and a knocking assembly, the material guide plate is fixedly arranged in the ball pressing box, the sieve plate is fixedly arranged in the ball pressing box and is positioned below the material guide plate, and the material port is formed in the tail end of the sieve plate;
the knocking assembly comprises a rotating seat, a third gear, an incomplete gear, a knocking hammer, a telescopic sleeve rod, a supporting plate and a restoring spring, the rotating seat is rotatably installed inside the ball pressing box and located below the sieve plate, the third gear is coaxially and fixedly connected with the rotating seat, the incomplete gear is rotatably installed inside the ball pressing box and can be meshed with the third gear, one side of the rotating seat is fixedly connected with the knocking hammer, the telescopic sleeve rod is hinged with the bottom end of the rotating seat, the supporting plate is fixedly installed inside the ball pressing box, the bottom end of the telescopic sleeve rod is hinged with the supporting plate, and the restoring spring is sleeved on the telescopic sleeve rod;
the driving mechanism comprises a driving motor, a fourth gear, a fifth gear, a sixth gear, a seventh gear, an eighth gear, a first belt wheel and a second belt wheel, the driving motor is fixedly installed on the outer side of the ball pressing box, the fourth gear, the fifth gear and the first belt wheel are all fixedly installed on an output shaft of the driving motor, the sixth gear is fixedly installed at the outer end of the rotating shaft, the seventh gear is fixedly installed at the outer end of the sleeve shaft, the sixth gear is meshed with the fourth gear, the seventh gear is meshed with the fifth gear, the eighth gear is coaxially and fixedly connected with the rotating roller, the eighth gear is meshed with the seventh gear, the second belt wheel is coaxially and fixedly connected with the incomplete gear, and the second belt wheel is in transmission connection with the first belt wheel through a belt.
Preferably, the inner tooth holder is of an annular structure, and a plurality of tooth sockets are formed in the inner wall of the inner tooth holder and form a tooth-shaped structure.
Preferably, the number of the coaxial stirring impellers is four times that of the rolling gears, and the coaxial stirring impellers are respectively arranged on two sides of the rolling gears.
Preferably, a plurality of the second press rolls are tangent to the first press roll, and the second press rolls and the first press roll can press the materials into spherical particles.
Preferably, the rotating shaft is arranged on the inner side of the sleeve shaft, penetrates through the sleeve shaft and is rotatably connected with the sleeve shaft.
Preferably, the material guide plate and the sieve plate are both of an inclined structure, and the inclined directions of the material guide plate and the sieve plate are opposite.
Preferably, the rapping hammer is a rubber hammer, the rapping hammer can be in contact with the bottom surface of the sieve plate, and the rapping hammer can be used for rapping the sieve plate, so that the screening speed of the sieve plate can be increased, and meanwhile, materials attached to the sieve plate are shaken off.
Preferably, the number of teeth of the eighth gear is greater than that of the seventh gear, so that the rotating speed of the eighth gear is less than that of the seventh gear, and the rotating roller rotates at a constant speed.
The submerged arc refining slag for square billet LF refining provided by the invention has the beneficial effects that: the invention is mainly used for submerged arc of the billet in the LF refining process and uses carbonic acid (CaCO)3、BaCO3、Na2CO3、MgCO3) Etc. as main raw materials, carbonic acid is decomposed at high temperature after entering molten steel to generate a large amount of CO2Bubbles, SiC, C, CaC entrained simultaneously2Iso-turn with CO2CO is generated by reaction, thereby obtaining a large amount of bubbles and realizing the purpose of submerged arc.
The submerged arc refining slag for square billet LF refining provided by the invention has the beneficial effects that:
1. through the corresponding sprocket rotation of agitator motor drive, under the transmission of chain, two sprockets remove with the drive chain, because rolling gear and chain meshing, simultaneously with the inner wall meshing of interior toothholder, so rolling gear can roll along the inner wall of interior toothholder to drive corresponding impeller and rotate, can make impeller conversion position that does not stop like this, and stir the material, and then can to a great extent make material intensive mixing.
2. Rotation through first gear makes all second gears synchronous rotation to make all second compression rollers rotate at the uniform velocity around first compression roller, first compression roller follows two mounting panels simultaneously and rotates, and this just makes second compression roller, first compression roller can fully contact with the material, thereby can fully suppress the material, and then improves and press ball efficiency.
3. The screen plate can be knocked by the knocking hammer, so that the screening speed of the screen plate can be increased, and meanwhile, the materials attached to the screen plate are shaken off.
Drawings
FIG. 1 is a flow chart of a production process of a submerged arc refining slag for square billet LF refining according to the present invention;
FIG. 2 is a first schematic structural view of a submerged arc refining slag production facility for LF refining of a billet according to the present invention;
FIG. 3 is a schematic structural view II of a production facility of submerged arc refining slag for square billet LF refining, which is provided by the invention;
FIG. 4 is a schematic structural view of a ball pressing mechanism of a submerged arc refining slag production facility for LF refining of a billet according to the present invention;
FIG. 5 is a schematic structural view of a mixing mechanism of a production apparatus of a submerged arc refining slag for LF refining of a billet according to the present invention;
FIG. 6 is a schematic structural view of a stirring assembly of a production facility of submerged arc refining slag for square billet LF refining according to the present invention;
FIG. 7 is a schematic structural view of a submerged arc refining slag drying assembly for square billet LF refining according to the present invention;
FIG. 8 is a schematic structural view of a ball pressing unit of a submerged arc refining slag production apparatus for LF refining of a billet according to the present invention;
FIG. 9 is a schematic structural view of a screening unit of a submerged arc refining slag production facility for LF refining of a billet according to the present invention;
FIG. 10 is a schematic structural view of a knocking assembly of a submerged arc refining slag production apparatus for LF refining of a billet according to the present invention;
FIG. 11 is a schematic structural view of a driving mechanism of a submerged arc refining slag production facility for LF refining of a billet according to the present invention.
In the figure: mounting rack 1, mixing mechanism 2, mixing box 21, feed hopper 22, material pump 23, stirring assembly 24, internal tooth holder 241, chain wheel 242, chain 243, rolling gear 244, stirring impeller 245, stirring motor 246, ball pressing mechanism 3, ball pressing box 31, drying assembly 32, material guide holder 321, rotating roller 322, poking plate 323, drying lamp 324, ball pressing assembly 33, mounting plate 331, first pressing roller 332, second pressing roller 333, first gear 334, second gear 335, sleeve shaft 336, rotating shaft 337, screening assembly 34, material guide plate 341, screen plate 342, material opening 343, knocking assembly 344, rotating holder 3441, third gear 3442, incomplete gear 3443, knocking hammer 3444, telescopic sleeve 3445, support plate 3446, return spring 3447, material outlet channel 35, driving mechanism 4, driving motor 41, fourth gear 42, fifth gear 43, sixth gear 44, seventh gear 45, eighth gear 46, first belt wheel 47, A second pulley 48.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1, the submerged arc refining slag for square billet LF refining comprises the following raw materials in percentage by weight: CaCO350 percent of MgO, 20 percent of SiO2Is 5 percent of BaCO310% of Na2CO35% portions of SiC, 5% portions of CaF2Is 5 percent;
CaCO3limestone, which may be synthetic or natural; BaCO3Can be a commercial waste or a barium-containing waste; na (Na)2CO3Is industrial soda ash; MgO can be any one of magnesia, light-burned magnesia, magnesium dolomite or magnesite; the SiC can be any one of industrial smelting-grade silicon carbide or waste containing silicon carbide; SiO2 may be any of silica, quartz sand, or bentonite.
The invention is mainly used for submerged arc of the billet in the LF refining process and uses carbonic acid (CaCO)3、BaCO3、Na2CO3、MgCO3) Etc. as main raw materials, carbonic acid is decomposed at high temperature after entering molten steel to generate a large amount of CO2Bubbles, SiC, C, CaC entrained simultaneously2Iso-turn with CO2CO is generated through reaction, so that a large amount of bubbles are obtained, and the purpose of submerged arc is achieved;
the invention also provides a production process of the submerged arc refining slag for square billet LF refining, which comprises the following steps;
step 1: adding all the raw materials into a stirrer in proportion for mixing for 5-10 min;
step 2: and (3) putting the materials mixed in the step (1) into a high-pressure ball press machine to be pressed into spheroidal particles, and sending the semi-finished product with unqualified moisture into drying equipment to be dried, wherein the baking temperature is 200-.
And step 3: and (3) introducing the materials pressed into balls in the step (2) into a vibrating screen for screening, wherein the screen plate is 3-40mm, the materials which do not meet the requirements are cleaned and then continuously recycled, and the spherical materials which meet the requirements are led out through the screen plate to be collected.
According to the invention, a process similar to electric furnace steelmaking is realized after scrap steel is added before the square billet LF refining process, the submerged arc refining slag of the square billet LF refining can effectively block electric arcs between the scrap steel which is not melted and agglomerated and electrodes, the purpose of refining submerged arc is achieved, proper foaming submerged arc time can be obtained by controlling proper granularity components, and the foaming submerged arc function of the whole refining process is ensured.
Example 2:
referring to fig. 1, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the composition of the raw materials by weight percentage is: CaCO365 percent of MgO, 10 percent of SiO2Is 5 percent of BaCO310% of Na2CO33% of SiC, 3% of CaF 24% of the total weight;
CaCO3limestone, which may be synthetic or natural; BaCO3Can be a commercial waste or a barium-containing waste; na (Na)2CO3Is industrial soda ash; MgO can be any one of magnesia, light-burned magnesia, magnesium dolomite or magnesite; the SiC can be any one of industrial smelting-grade silicon carbide or waste containing silicon carbide; SiO2 may be any of silica, quartz sand, or bentonite.
The invention is mainly used for submerged arc of the billet in the LF refining process and uses carbonic acid (CaCO)3、BaCO3、Na2CO3、MgCO3) Etc. as main raw material, carbonic acid substances entering molten steelThen decomposed due to high temperature to generate a large amount of CO2Bubbles, SiC, C, CaC entrained simultaneously2Iso-turn with CO2CO is generated by reaction, thereby obtaining a large amount of bubbles and realizing the purpose of submerged arc.
The invention also provides a production process of the submerged arc refining slag for square billet LF refining, which comprises the following steps;
step 1: all the raw materials are added into a stirrer in proportion for mixing, and then the submerged arc desulfurizer is added for full mixing for 10 min;
step 2: putting the materials mixed in the step 1 into a high-pressure ball press to be pressed into spherical particles; the semi-finished product with unqualified water is sent into a drying device for drying, the baking temperature is 200-300 ℃, and the duration is 10-30min.
And step 3: and (3) introducing the materials pressed into balls in the step (2) into a sieve plate for screening, wherein the sieve plate is 40mm, the materials which do not meet the requirements are cleaned and then continuously recycled, and the spherical materials which meet the requirements pass through the sieve plate to be led out for collection.
According to the invention, a process similar to electric furnace steelmaking is realized after scrap steel is added before the square billet LF refining process, the submerged arc refining slag of the square billet LF refining can effectively block electric arcs between the scrap steel which is not melted and agglomerated and electrodes, the purpose of refining submerged arc is achieved, proper foaming submerged arc time can be obtained by controlling proper granularity components, and the foaming submerged arc function of the whole refining process is ensured.
Example 3:
materials need to be mixed and stirred in the process of preparing the synthetic slag, and the stirring shaft is fixed at a position of the stirring machine in the prior art and can not be rotated and stirred, so that the materials can not be uniformly mixed, and the stirring effect is not ideal; in addition, when the material is rolled and slagged by the ball press, the material is generally extruded by two compression rollers, so that the contact range of the material and the compression rollers is not limited, and the material cannot be pressed to the maximum extent;
referring to fig. 2-11, the production equipment of the submerged arc refining slag for square billet LF refining comprises a mounting frame 1, a mixing mechanism 2, a ball pressing mechanism 3 and a driving mechanism 4, wherein the mixing mechanism 2 is mounted at the top end of the mounting frame 1, the ball pressing mechanism 3 is mounted at the outlet end of the mixing mechanism 2, and the driving mechanism 4 is mounted at the outer side of the ball pressing mechanism 3;
the mixing mechanism 2 comprises a mixing box 21, a feed hopper 22, a material pump 23 and a stirring assembly 24, the mixing box 21 is fixedly arranged at the top of the mounting frame 1, the feed hopper 22 is fixedly arranged at the inlet end of the mixing box 21, the material pump 23 is fixedly arranged at the outlet end of the mixing box 21, and the inlet end of the material pump 23 is communicated with the interior of the mixing box 21; the stirring assembly 24 comprises an inner tooth holder 241, a chain wheel 242, a chain 243, a rolling gear 244, a stirring impeller 245 and a stirring motor 246, the inner tooth holder 241 is fixedly arranged inside the mixing box 21, the inner tooth holder 241 is of a ring-shaped structure, and a plurality of tooth grooves are formed in the inner wall of the inner tooth holder 241 and form a tooth-shaped structure; the number of the chain wheels 242 is two, the two chain wheels 242 are respectively rotatably mounted at two ends of the inner side of the inner tooth holder 241, the two chain wheels 242 are in transmission connection through a chain 243, the number of the rolling gears 244 is several, the rolling gears 244 are uniformly distributed on the chain 243 and meshed with the chain 243, the rolling gears 244 are meshed with the inner wall of the inner tooth holder 241, the number of the stirring impellers 245 is several, the stirring impellers 245 are coaxially and fixedly connected with the corresponding rolling gears 244, the number of the coaxial stirring impellers 245 is four times that of the rolling gears 244, and the coaxial stirring impellers 245 are respectively arranged at two sides of the rolling gears 244; the stirring motor 246 is fixedly arranged at the outer side of the mixing box 21, and the output shaft of the stirring motor 246 is fixedly connected with the corresponding chain wheel 242;
drive corresponding sprocket 242 through agitator motor 246 and rotate, under the transmission of chain 243, two sprocket 242 and drive chain 243 remove, because roller gear 244 and the meshing of chain 243, simultaneously with the inner wall meshing of interior toothholder 241, so roller gear 244 can roll along the inner wall of interior toothholder 241, thereby drive corresponding impeller 245 and rotate, can make the conversion position that impeller 245 does not stop like this, and stir the material, and then can to a great extent make the material intensive mixing.
The ball pressing mechanism 3 comprises a ball pressing box 31, a drying component 32, a ball pressing component 33, a screening component 34 and a discharge channel 35, the drying component 32, the ball pressing component 33 and the screening component 34 are installed inside the ball pressing box 31, and the discharge channel 35 is fixedly installed at the bottom of the ball pressing box 31; the drying assembly 32 comprises a material guide seat 321, a rotating roller 322, a plurality of poking plates 323 and drying lamps 324, the material guide seat 321 is fixedly installed at the top end of the inner side of the ball pressing box 31, the rotating roller 322 is rotatably installed at the inner side of the material guide seat 321, the number of the poking plates 323 is a plurality, the plurality of poking plates 323 are uniformly and fixedly installed at the outer side of the rotating roller 322, and the drying lamps 324 are fixedly installed on the top wall of the inner side of the ball pressing box 31; the rotating roller 322 drives the poking plate 323 to rotate, and the poking plate 323 can be poked and dispersed by a single material, so that the drying lamp 324 can rapidly dry the material.
The ball pressing assembly 33 comprises mounting plates 331, first pressing rollers 332, second pressing rollers 333, first gears 334, second gears 335, sleeve shafts 336 and rotating shafts 337, the number of the mounting plates 331 is two, the first pressing rollers 332 are fixedly mounted between the two mounting plates 331, the two mounting plates 331 are both rotatably connected with the inner wall of the ball pressing box 31, the number of the second pressing rollers 333 is several, the second pressing rollers 333 are uniformly distributed around the first pressing rollers 332 and are both rotatably mounted between the two mounting plates 331, the second pressing rollers 333 are both tangential to the first pressing rollers 332, and the second pressing rollers 333 and the first pressing rollers 332 can press materials into spherical particles; the number of the first gears 334 corresponds to that of the second pressing rollers 333 one by one, the first gears 334 are coaxially and fixedly connected with the corresponding second pressing rollers 333, the second gears 335 are arranged among the first gears 334, the first gears 334 are all meshed with the second gears 335, the outer side of the second gears 335 is fixedly connected with a sleeve shaft 336, the sleeve shaft 336 penetrates through the inner wall of the ball pressing box 31 and is rotatably connected with the ball pressing box 31, a rotating shaft 337 penetrates through the inner wall of the ball pressing box 31 and is rotatably connected with the ball pressing box 31, one end of the rotating shaft 337 is fixedly connected with one of the mounting plates 331, the rotating shaft 337 is arranged on the inner side of the sleeve shaft 336, penetrates through the sleeve shaft 336 and is rotatably connected with the sleeve shaft 336;
all the second gears 335 are synchronously rotated through the rotation of the first gear 334, so that all the second pressing rollers 333 rotate around the first pressing roller 332 at a constant speed, meanwhile, the first pressing roller 332 rotates along with the two mounting plates 331, and therefore the second pressing rollers 333 and the first pressing roller 332 can be fully contacted with materials, the materials can be fully pressed, and the ball pressing efficiency is improved.
The screening assembly 34 comprises a material guide plate 341, a screen plate 342, a material port 343 and a knocking assembly 344, wherein the material guide plate 341 is fixedly installed inside the ball pressing box 31, the screen plate 342 is fixedly installed inside the ball pressing box 31 and below the material guide plate 341, the material guide plate 341 and the screen plate 342 are both in an inclined structure, and the inclined directions of the material guide plate 341 and the screen plate 342 are opposite; the material port 343 is arranged at the tail end of the sieve plate 342; the sieve plate 342 can screen the materials, the spherical materials meeting the requirements pass through the sieve plate 342, and the materials not meeting the requirements are left on the sieve plate 342 and are led out from the material port 343 for reuse.
The knocking assembly 344 includes a rotary seat 3441, a third gear 3442, an incomplete gear 3443, a knocking hammer 3444, a telescopic sleeve 3445, a support plate 3446 and a return spring 3447, wherein the rotary seat 3441 is rotatably installed inside the ball pressing box 31 and below the sieve plate 342, the third gear 3442 is coaxially and fixedly connected with the rotary seat 3441, the incomplete gear 3443 is rotatably installed inside the ball pressing box 31, the incomplete gear 3443 is capable of meshing with the third gear 3442, one side of the rotary seat 3441 is fixedly connected with the knocking hammer 3444, the knocking hammer 3444 is a rubber hammer, the knocking hammer 3444 is capable of contacting with the bottom surface of the sieve plate 342, and the knocking hammer 3444 can knock the sieve plate 342, so that the screening rate of the sieve plate 342 can be increased, and the material attached to the sieve plate 342 can be shaken off; the telescopic sleeve rod 3445 is hinged with the bottom end of the rotating seat 3441, the supporting plate 3446 is fixedly arranged inside the ball pressing box 31, the bottom end of the telescopic sleeve rod 3445 is hinged with the supporting plate 3446, and the return spring 3447 is sleeved on the telescopic sleeve rod 3445;
the driving mechanism 4 comprises a driving motor 41, a fourth gear 42, a fifth gear 43, a sixth gear 44, a seventh gear 45, an eighth gear 46, a first belt pulley 47 and a second belt pulley 48, the driving motor 41 is fixedly installed at the outer side of the ball pressing box 31, the fourth gear 42, the fifth gear 43 and the first belt pulley 47 are all fixedly installed on an output shaft of the driving motor 41, the sixth gear 44 is fixedly installed at the outer end of the rotating shaft 337, the seventh gear 45 is fixedly installed at the outer end of the sleeve shaft 336, the sixth gear 44 is meshed with the fourth gear 42, the seventh gear 45 is meshed with the fifth gear 43, the eighth gear 46 is coaxially and fixedly connected with the rotating roller 322, the eighth gear 46 is meshed with the seventh gear 45, the number of teeth of the eighth gear 46 is greater than that of the seventh gear 45, so that the rotating speed of the eighth gear 46 is smaller than that of the seventh gear 45, and the rotating roller 322 rotates at a constant speed; the second belt wheel 48 is coaxially and fixedly connected with the incomplete gear 3443, and the second belt wheel 48 is in transmission connection with the first belt wheel 47 through a belt.
The working principle is as follows: the materials are led into the mixing box 21 through the feed hopper 22, the stirring motor 246 and the material pump 23 are started, the corresponding chain wheels 242 are driven to rotate by the stirring motor 246, under the transmission of the chain 243, the two chain wheels 242 and the driving chain 243 move, and as the rolling gear 244 is meshed with the chain 243 and simultaneously meshed with the inner wall of the inner tooth holder 241, the rolling gear 244 rolls along the inner wall of the inner tooth holder 241, so that the corresponding stirring impeller 245 is driven to rotate, the stirring impeller 245 can continuously change positions and stir the materials, and then the mixed materials are led into the ball pressing box 31 through the material pump 23;
then, the driving motor 41 is started, the driving motor 41 drives the fourth gear 42, the fifth gear 43 and the first pulley 47 to synchronously rotate, so that the rotating roller 322 and the first gear 334 rotate, the rotating roller 322 drives the poking plate 323 to rotate, and the poking plate 323 can be poked and dispersed by single material, so that the drying lamp 324 can rapidly dry the material; meanwhile, the first gear 334 enables all the second gears 335 to synchronously rotate, so that all the second pressing rollers 333 uniformly rotate around the first pressing roller 332 and the first pressing roller 332 rotates along with the two mounting plates 331, the second pressing rollers 333 and the first pressing roller 332 can be fully contacted with materials, the materials can be fully pressed, and the ball pressing efficiency is improved;
the first belt pulley 47 and the second belt pulley 48 are driven by a belt, so the second belt pulley 48 drives the incomplete gear 3443 to rotate, the incomplete gear 3443 can drive the third gear 3442 to periodically rotate, and under the synchronous action of the return spring 3447, the rapping hammer 3444 can realize reciprocating swing, so that the rapping hammer 3444 can strike the sieve plate 342, the screening rate of the sieve plate 342 can be increased, the materials attached to the sieve plate 342 are shaken off, and the shaken off materials are led out and recycled through the material port 343.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The submerged arc refining slag for square billet LF refining is characterized by comprising the following raw materials in percentage by weight: CaCO340-65% of MgO, 0-20% of SiO25-10% of BaCO30-20% of Na2CO30-10% of SiC, 0-15% of CaF20-15% of the total weight;
the CaCO3Limestone, which may be synthetic or natural; the BaCO3Can be a commercial waste or a barium-containing waste; the Na is2CO3Is industrial soda ash; the MgO can be any one of magnesia, light-burned magnesia, magnesium dolomite or magnesite; the SiC can be any one of industrial smelting-grade silicon carbide or waste containing silicon carbide; the SiO2 may be any one of silica, quartz sand, or bentonite.
2. The process for producing a submerged arc refining slag for billet LF refining according to claim 1, characterized by comprising the steps of;
step 1: adding all the raw materials into a stirrer in proportion for mixing for 5-10 min;
step 2: and (3) putting the materials mixed in the step (1) into a high-pressure ball press machine to be pressed into spheroidal particles, and sending the semi-finished product with unqualified moisture into drying equipment to be dried, wherein the baking temperature is 200-.
And step 3: and (3) introducing the materials pressed into balls in the step (2) into a vibrating screen for screening, wherein the screen plate is 3-40mm, the materials which do not meet the requirements are cleaned and then continuously recycled, and the spherical materials which meet the requirements are led out through the screen plate to be collected.
3. The production equipment of the submerged arc refining slag for the billet LF refining according to the claim 2 is characterized by comprising a mounting frame (1), a mixing mechanism (2), a ball pressing mechanism (3) and a driving mechanism (4), wherein the mixing mechanism (2) is installed at the top end of the mounting frame (1), the ball pressing mechanism (3) is installed at the outlet end of the mixing mechanism (2), and the driving mechanism (4) is installed at the outer side of the ball pressing mechanism (3);
the mixing mechanism (2) comprises a mixing box (21), a feed hopper (22), a material pump (23) and a stirring assembly (24), wherein the mixing box (21) is fixedly arranged at the top of the mounting frame (1), the feed hopper (22) is fixedly arranged at the inlet end of the mixing box (21), the material pump (23) is fixedly arranged at the outlet end of the mixing box (21), and the inlet end of the material pump (23) is communicated with the interior of the mixing box (21); stirring subassembly (24) includes interior toothholder (241), sprocket (242), chain (243), rolling gear (244), stirring impeller (245) and agitator motor (246), interior toothholder (241) fixed mounting is in the inside of mixing box (21), the quantity of sprocket (242) is two, two sprocket (242) rotate respectively and install in the both ends of toothholder (241) inboard, two it connects through chain (243) transmission between sprocket (242), the quantity of rolling gear (244) is a plurality of, a plurality of rolling gear (244) evenly distributed is on chain (243), and with chain (243) meshing, a plurality of rolling gear (244) and the inner wall meshing of inner toothholder (241), the quantity of stirring impeller (245) is a plurality of, a plurality of stirring impeller (245) and corresponding rolling gear (244) coaxial fixed connection, the stirring motor (246) is fixedly arranged on the outer side of the mixing box (21), and an output shaft of the stirring motor (246) is fixedly connected with a corresponding chain wheel (242);
the ball pressing mechanism (3) comprises a ball pressing box (31), a drying assembly (32), a ball pressing assembly (33), a screening assembly (34) and a discharge channel (35), the drying assembly (32), the ball pressing assembly (33) and the screening assembly (34) are installed inside the ball pressing box (31), and the discharge channel (35) is fixedly installed at the bottom of the ball pressing box (31); the drying assembly (32) comprises a material guide seat (321), a rotating roller (322), a poking plate (323) and drying lamps (324), the material guide seat (321) is fixedly installed at the top end of the inner side of the ball pressing box (31), the rotating roller (322) is rotatably installed at the inner side of the material guide seat (321), the number of the poking plates (323) is a plurality, the poking plates (323) are uniformly and fixedly installed at the outer side of the rotating roller (322), and the drying lamps (324) are fixedly installed on the top wall of the inner side of the ball pressing box (31);
the ball pressing component (33) comprises mounting plates (331), first pressing rollers (332), second pressing rollers (333), first gears (334), second gears (335), sleeve shafts (336) and rotating shafts (337), the number of the mounting plates (331) is two, the first pressing rollers (332) are fixedly mounted between the two mounting plates (331), the two mounting plates (331) are rotatably connected with the inner wall of the ball pressing box (31), the number of the second pressing rollers (333) is a plurality of, the second pressing rollers (333) are uniformly distributed around the first pressing rollers (332) and are rotatably mounted between the two mounting plates (331), the number of the first gears (334) is in one-to-one correspondence with the second pressing rollers (333), the first gears (334) are coaxially and fixedly connected with the corresponding second pressing rollers (333), the second gears (335) are arranged between the first gears (334), the first gears (334) are meshed with the second gears (335), the outer sides of the second gears (335) are fixedly connected with a sleeve shaft (336), the sleeve shaft (336) penetrates through the inner wall of the ball pressing box (31) and is rotatably connected with the ball pressing box (31), the rotating shaft (337) penetrates through the inner wall of the ball pressing box (31) and is rotatably connected with the ball pressing box (31), and one end of the rotating shaft (337) is fixedly connected with one mounting plate (331);
the screening assembly (34) comprises a material guide plate (341), a screen plate (342), a material port (343) and a knocking assembly (344), the material guide plate (341) is fixedly installed inside the ball pressing box (31), the screen plate (342) is fixedly installed inside the ball pressing box (31) and located below the material guide plate (341), and the material port (343) is formed in the tail end of the screen plate (342);
the knocking component (344) comprises a rotating seat (3441), a third gear (3442), an incomplete gear (3443), a knocking hammer (3444), a telescopic loop bar (3445), a supporting plate (3446) and a return spring (3447), the rotating seat (3441) is rotatably arranged in the ball pressing box (31) and is positioned below the sieve plate (342), the third gear (3442) is coaxially and fixedly connected with the rotating seat (3441), the incomplete gear (3443) is rotatably arranged in the ball pressing box (31), the incomplete gear (3443) can be meshed with a third gear (3442), one side of the rotating seat (3441) is fixedly connected with a rapping hammer (3444), the telescopic sleeve rod (3445) is hinged with the bottom end of the rotating seat (3441), the supporting plate (3446) is fixedly arranged in the ball pressing box (31), the bottom end of the telescopic sleeve rod (3445) is hinged with the support plate (3446), and the return spring (3447) is sleeved on the telescopic sleeve rod (3445);
the driving mechanism (4) comprises a driving motor (41), a fourth gear (42), a fifth gear (43), a sixth gear (44), a seventh gear (45), an eighth gear (46), a first belt wheel (47) and a second belt wheel (48), the driving motor (41) is fixedly arranged on the outer side of the ball pressing box (31), the fourth gear (42), the fifth gear (43) and the first belt wheel (47) are fixedly arranged on an output shaft of the driving motor (41), the sixth gear (44) is fixedly arranged on the outer end of a rotating shaft (337), the seventh gear (45) is fixedly arranged on the outer end of a sleeve shaft (336), the sixth gear (44) is meshed with the fourth gear (42), the seventh gear (45) is meshed with the fifth gear (43), the eighth gear (46) is coaxially and fixedly connected with the rotating roller (322), and the eighth gear (46) is meshed with the seventh gear (45), the second belt wheel (48) is coaxially and fixedly connected with the incomplete gear (3443), and the second belt wheel (48) is in transmission connection with the first belt wheel (47) through a belt.
4. The production equipment of the submerged arc refining slag for the billet LF refining as claimed in claim 3, wherein the inner tooth holder (241) is of an annular structure, and the inner wall of the inner tooth holder (241) is provided with a plurality of tooth grooves and forms a tooth-shaped structure.
5. A production apparatus of a submerged arc refining slag for billet LF refining according to claim 3, characterized in that the number of the coaxial stirring impellers (245) is four times as many as the rolling gears (244), and the coaxial stirring impellers (245) are respectively provided on both sides of the rolling gears (244).
6. A production facility of refining slag of submerged arc for LF refining of square billet according to claim 3, characterized in that several second press rolls (333) are tangent to the first press roll (332), and several second press rolls (333) and the first press roll (332) can press the material into spherical particles.
7. A production facility of submerged arc refining slag for billet LF refining according to claim 3, characterized in that the rotating shaft (337) is disposed inside the sleeve shaft (336), and the rotating shaft (337) penetrates through the sleeve shaft (336) and is rotatably connected with the sleeve shaft (336).
8. A production facility of submerged arc refining slag for billet LF refining according to claim 3, characterized in that the material guiding plate (341) and the screen plate (342) are both inclined structures, and the direction of inclination of the material guiding plate (341) and the screen plate (342) is opposite.
9. A production apparatus of submerged arc refining slag for billet LF refining according to claim 3, wherein the rapping hammer (3444) is a rubber hammer, the rapping hammer (3444) can contact the bottom surface of the screen plate (342), and the rapping hammer (3444) can strike the screen plate (342) so as to accelerate the screening rate of the screen plate (342) and shake off the materials attached to the screen plate (342).
10. A production facility of submerged arc refining slag for billet LF refining according to claim 3, characterized in that the number of teeth of the eighth gear (46) is larger than that of the seventh gear (45), so that the rotation speed of the eighth gear (46) is smaller than that of the seventh gear (45), and the rotating rollers (322) rotate at a constant speed.
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| CN202110662389.6A CN113373279B (en) | 2021-06-15 | 2021-06-15 | Submerged arc refining slag for square billet LF refining and production process and equipment thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699315A (en) * | 2021-09-14 | 2021-11-26 | 重庆西辅冶金材料有限公司 | Refining slag for LF refining and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254019A (en) * | 1999-11-30 | 2000-05-24 | 上海宝钢集团公司 | Ladle finer reduction foaming agent |
| KR20030053147A (en) * | 2001-12-22 | 2003-06-28 | 주식회사 포스코 | Slag Forming Agent |
| CN101012489A (en) * | 2007-02-10 | 2007-08-08 | 赵佳云 | Pre-melting buried arc composite refining slag and method for making same |
| CN101177721A (en) * | 2006-11-10 | 2008-05-14 | 攀钢集团攀枝花钢铁研究院 | Multifunctional composite refining agent for steelmaking |
| CN104630462A (en) * | 2015-02-28 | 2015-05-20 | 北京辰兴旭光环保技术有限公司 | Steelmaking sludge drying ball pressing system and ball pressing method |
| CN206666609U (en) * | 2017-03-11 | 2017-11-24 | 重庆臻焱节能环保科技有限公司 | Coal-pressing ball system of processing |
| CN109439845A (en) * | 2018-12-26 | 2019-03-08 | 武汉如星科技有限公司 | A kind of cord steel slug type calcium magnesium silicate refining slag and preparation method thereof |
-
2021
- 2021-06-15 CN CN202110662389.6A patent/CN113373279B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254019A (en) * | 1999-11-30 | 2000-05-24 | 上海宝钢集团公司 | Ladle finer reduction foaming agent |
| KR20030053147A (en) * | 2001-12-22 | 2003-06-28 | 주식회사 포스코 | Slag Forming Agent |
| CN101177721A (en) * | 2006-11-10 | 2008-05-14 | 攀钢集团攀枝花钢铁研究院 | Multifunctional composite refining agent for steelmaking |
| CN101012489A (en) * | 2007-02-10 | 2007-08-08 | 赵佳云 | Pre-melting buried arc composite refining slag and method for making same |
| CN104630462A (en) * | 2015-02-28 | 2015-05-20 | 北京辰兴旭光环保技术有限公司 | Steelmaking sludge drying ball pressing system and ball pressing method |
| CN206666609U (en) * | 2017-03-11 | 2017-11-24 | 重庆臻焱节能环保科技有限公司 | Coal-pressing ball system of processing |
| CN109439845A (en) * | 2018-12-26 | 2019-03-08 | 武汉如星科技有限公司 | A kind of cord steel slug type calcium magnesium silicate refining slag and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699315A (en) * | 2021-09-14 | 2021-11-26 | 重庆西辅冶金材料有限公司 | Refining slag for LF refining and use method thereof |
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