CN114733607B - Preparation equipment and preparation method for steel liquid refining agent - Google Patents
Preparation equipment and preparation method for steel liquid refining agent Download PDFInfo
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- CN114733607B CN114733607B CN202210373833.7A CN202210373833A CN114733607B CN 114733607 B CN114733607 B CN 114733607B CN 202210373833 A CN202210373833 A CN 202210373833A CN 114733607 B CN114733607 B CN 114733607B
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- grinding
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- balls
- sintering
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 title claims abstract description 24
- 238000007670 refining Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 87
- 238000000227 grinding Methods 0.000 claims abstract description 65
- 238000005245 sintering Methods 0.000 claims abstract description 40
- 239000000872 buffer Substances 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000001354 calcination Methods 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 238000009825 accumulation Methods 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims abstract description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 8
- 235000017550 sodium carbonate Nutrition 0.000 claims description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052681 coesite Inorganic materials 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 229910052682 stishovite Inorganic materials 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 4
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 4
- 229910000281 calcium bentonite Inorganic materials 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 4
- 235000010216 calcium carbonate Nutrition 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
- B02C7/08—Crushing or disintegrating by disc mills with coaxial discs with vertical axis
-
- 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
- B01J2/14—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating dishes or pans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/14—Adjusting, applying pressure to, or controlling distance between, discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/16—Driving mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a preparation device for a steel liquid refining agent and a preparation method thereof, and belongs to the technical field of steel liquid refining agents, the preparation device comprises a grinding device, wherein a lower end pipeline of the grinding device is connected with a disc granulator, one end of the disc granulator is provided with a sintering machine, both ends of the sintering machine are provided with conveying belts, and the upper end of a calcining zone of the sintering machine is provided with a heat recovery box; according to the invention, the material balls are discharged through the material separating component, enter the material separating barrel from the material inlet, fall onto the buffer cushion, and have buffering force under the action of the elastic force of the reset spring, so that the material balls cannot deform when falling down, then roll in the material separating chute, are discharged from the material discharging hole, and are uniformly separated, so that accumulation is avoided.
Description
Technical Field
The invention belongs to the technical field of steel liquid refining agents, and particularly relates to a preparation device and a preparation method for a steel liquid refining agent.
Background
Iron and steel smelting is the general term of the technical process of steel and iron metallurgy. Iron produced industrially is classified into pig iron (carbon content of 2% or more) and steel (carbon content of less than 2%) according to carbon content.
Most of modern ironmaking adopts blast furnace ironmaking, and a direct reduction ironmaking method and an electric furnace ironmaking method are adopted respectively. The steel-making mainly uses pig iron produced by a blast furnace, sponge iron produced by a direct reduction iron-making method and scrap steel as raw materials, and steel is produced by different methods. The basic production process is that iron ore is smelted into pig iron in an iron-smelting furnace, pig iron is used as raw material, steel is smelted by different methods, and then steel ingot or continuous casting billet is cast.
The prior art has the following problems: the existing preparation equipment for the steel liquid refining agent cannot be adjusted when raw materials are ground in use, and cannot be adjusted in different grinding fineness; the objects granulated by the granulator are inconvenient to discharge, and are easy to deform, so that the quality is influenced; no cleaning component is arranged in front of the sintering machine, so that impurities exist on the surface area of the granulated product, and sintering is affected.
Disclosure of Invention
To solve the problems set forth in the background art. The invention provides a preparation device for a steel liquid refining agent, which has the characteristics of adjustable grinding, convenient blanking and portable ash removal.
Another object of the present invention is to provide a method for preparing a preparation apparatus for a steel liquid refining agent.
In order to achieve the above purpose, the present invention provides the following technical solutions: the preparation equipment for the steel liquid refining agent comprises a grinding device, wherein a lower end pipeline of the grinding device is connected with a disc granulator, one end of the disc granulator is provided with a sintering machine, two ends of the sintering machine are provided with conveying belts, the upper end of a calcining zone of the sintering machine is provided with a heat recovery box, the upper end of the heat recovery box is provided with a vent pipe, and the other end of the vent pipe extends into a front end drying zone of the sintering machine;
the grinding device comprises an electric telescopic rod, a grinding box, a feeding hole, a lower film pressing roller, a discharging hole, an upper grinding roller, a driving motor, a fixing frame and supporting legs, wherein the electric telescopic rod is arranged at the upper end of the grinding box, the fixing frame is arranged at the lower end of the electric telescopic rod, the driving motor is arranged inside the fixing frame, the upper grinding roller is arranged on a rotating shaft of the driving motor, the lower film pressing roller is arranged at the bottom of the grinding box, the discharging hole is arranged in the middle of the bottom of the grinding box, the feeding hole is formed in the side edge of the grinding box, and the supporting legs are arranged around the bottom of the grinding box.
Further, the lower end inclination angle of the upper grinding roller is consistent with the inner wall inclination angle of the lower film pressing roller.
Further, the discharging pipe of disc granulator is provided with the feed divider subassembly, the feed divider subassembly includes feed divider, feed divider spout, unloading hole, reset spring, feed divider piece, blotter and feed inlet, wherein, the inside bottom of feed divider is provided with the feed divider piece, evenly be provided with a plurality of unloading holes that run through in the middle of the feed divider piece, the upper end of feed divider is provided with the feed inlet, the upper end both sides of feed divider piece are provided with the feed divider spout.
Further, one end of the material distributing chute, which is far away from the feeding hole, is provided with a buffer block.
Further, a collecting cylinder is arranged in the middle of the upper end of the collecting plate, a dust screen is arranged at the upper end of the inner part of the collecting cylinder, a plurality of air inlets are uniformly formed in the lower end of the collecting plate, and an exhaust fan is arranged in the middle of the collecting plate.
Further, the dust screen is connected with the inner wall of the collecting cylinder in a buckling way, and a sealing gasket is arranged at the joint of the dust screen and the collecting cylinder.
Further, the inside of the collection cylinder is provided with a collection ring, and the lower end of the collection ring is provided with an inclined structure.
Further, the preparation method of the preparation equipment of the steel liquid refining agent comprises the following steps:
(1) the raw materials are as follows: the steel liquid refining agent comprises the following ingredients: 55-60% of volcanic aluminosilicate raw materials (wherein the weight percentage of SiO2 is 74%, the weight percentage of Al2O3 is 13%, the weight percentage of Na2O+K2O is 6%, and the balance) is 20-25% of soda ash (the content of Na2CO3 is more than 95%), 15-20% of potassium feldspar, (the content of potassium is 9-12%), 15-20% of limestone (the content of CaCO3 is more than 90%), 8-10% of fine iron powder (the content of Fe2O3 is more than 80%), and 3% of calcium bentonite;
(2) and (3) mixing and grinding: the mixed raw materials in proportion enter a grinding box from a feed inlet, an electric telescopic rod stretches to drive a fixing frame to move downwards, a driving motor rotates to drive an upper grinding roller to rotate, the upper grinding roller and a lower film pressing roller are matched to grind the mixed materials, the mixed materials are ground until target standard screen residues are smaller than each other, and the ground materials are discharged from a discharge outlet;
(3) and (3) mixing and granulating: discharging the ground material from a discharge hole, adding 8-10% of water, and feeding the water into a disc granulator to form balls with the diameter of about 8-12 mm;
(4) and (3) material separation and ash removal: the material balls are discharged through the material distribution assembly, enter the material distribution barrel from the material inlet, fall onto the buffer cushion, have buffer force under the action of the elastic force of the reset spring, so that the material balls cannot deform when falling down, then roll in the material distribution chute, are discharged from the material outlet, are uniformly distributed, and avoid accumulation; the exhaust fan rotates to suck, so that sundries around the material balls are sucked into the collecting cylinder and intercepted by the dust screen, and the sundries fall into the collecting ring;
(5) sintering a product: the material balls with the separated materials and the ash removed are conveyed into a sintering machine through a conveying belt, waste heat flue gas is firstly conveyed by adopting a vent pipe, the material balls are dried to 300-400 ℃ from room temperature, the drying is kept for about 25-30 minutes, then the material balls enter a calcining zone at 1050-1200 ℃ for sintering, the sintering time is 15-20 minutes, then ventilation cooling is carried out, namely, heat exchange air enters a calcining zone for about 30 minutes, the whole sintering cooling process is carried out for about 70-80 minutes, the sintered materials are crushed and ground, and the 150-target quasi-screen residue is less than 20%, thus obtaining the finished product.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the fixing frame is driven to move downwards by extending the electric telescopic rod, the driving motor rotates to drive the upper grinding roller to rotate, and the upper grinding roller is matched with the lower film pressing roller to grind the mixture, so that the grinding diameter is adjustable, different grinding requirements are met, and the use portability is improved;
2. according to the invention, the material balls are discharged through the material separating component, enter the material separating barrel from the material inlet, fall onto the buffer cushion, and have buffering force under the action of the elastic force of the reset spring, so that the material balls cannot deform when falling down, then roll in the material separating chute, are discharged from the material discharging hole, and are uniformly separated, so that accumulation is avoided;
3. the dust removing component is arranged, the exhaust fan rotates to suck, so that sundries around the material balls are sucked into the collecting cylinder and intercepted by the dust screen, the sundries fall into the collecting ring, and the sundries are prevented from affecting sintering.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the grinding chamber of the present invention;
FIG. 3 is a perspective view of the polishing apparatus of the present invention;
FIG. 4 is a cross-sectional view of a dispensing assembly of the present invention;
FIG. 5 is a cross-sectional view of the ash removal assembly of the present invention;
in the figure: 1. a grinding device; 11. an electric telescopic rod; 12. a grinding box; 13. a feed inlet; 14. pressing down a film roll; 15. a discharge port; 16. a grinding roller is arranged; 17. a driving motor; 18. a fixing frame; 19. support legs; 2. a disk granulator; 3. a material distribution component; 31. a material distributing cylinder; 32. a material distributing chute; 33. a buffer block; 34. a blanking hole; 35. a return spring; 36. a distributor block; 37. a cushion pad; 38. a feed hole; 4. a conveyor belt; 5. a sintering machine; 6. a heat recovery tank; 7. a vent pipe; 8. an ash removal component; 81. a dust screen; 82. a collection cylinder; 83. a collection plate; 84. an air inlet hole; 85. an exhaust fan; 86. a collection ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides the following technical solutions: the preparation equipment for the steel liquid refining agent comprises a grinding device 1, wherein a lower end pipeline of the grinding device 1 is connected with a disc granulator 2, one end of the disc granulator 2 is provided with a sintering machine 5, two ends of the sintering machine 5 are provided with conveying belts 4, the upper end of a calcining zone of the sintering machine 5 is provided with a heat recovery box 6, the upper end of the heat recovery box 6 is provided with a vent pipe 7, and the other end of the vent pipe 7 extends into a front end drying zone of the sintering machine 5;
the grinding device 1 comprises an electric telescopic rod 11, a grinding box 12, a feeding hole 13, a lower film pressing roller 14, a discharging hole 15, an upper grinding roller 16, a driving motor 17, a fixing frame 18 and supporting legs 19, wherein the electric telescopic rod 11 is arranged at the upper end of the grinding box 12, the fixing frame 18 is arranged at the lower end of the electric telescopic rod 11, the driving motor 17 is arranged in the fixing frame 18, the upper grinding roller 16 is arranged on a rotating shaft of the driving motor 17, the lower film pressing roller 14 is arranged at the bottom of the grinding box 12, the discharging hole 15 is arranged in the middle of the bottom of the grinding box 12, the feeding hole 13 is arranged on the side edge of the grinding box 12, and the supporting legs 19 are arranged around the bottom of the grinding box 12.
Further, in the present invention, the lower end of the upper grinding roll 16 is inclined at an angle consistent with the inner wall of the lower film pressing roll 14,
by adopting the technical scheme, the upper grinding roller 16 and the lower film pressing roller 14 are ensured to be matched stably, and the grinding quality is ensured.
Further in the invention, a discharging pipe of the disc granulator 2 is provided with a distributing component 3, the distributing component 3 comprises a distributing cylinder 31, a distributing chute 32, a discharging hole 34, a reset spring 35, a distributing block 36, a buffer pad 37 and a feeding hole 38, wherein the distributing block 36 is arranged at the inner bottom of the distributing cylinder 31, a plurality of through discharging holes 34 are uniformly arranged in the middle of the distributing block 36, the feeding hole 38 is arranged at the upper end of the distributing cylinder 31, the distributing chute 32 is arranged at two sides of the upper end of the distributing block 36,
through adopting above-mentioned technical scheme, the ball gets into branch feed cylinder 31 from feed port 38 in, falls onto blotter 37, and blotter 37 has the buffering power under reset spring 35 put into elasticity effect, can not warp when making the ball fall down, then the ball rolls in through branch material chute 32, discharges from unloading hole 34, divides the material evenly, avoids piling up.
Further, in the invention, a buffer block 33 is arranged at one end of the material distributing chute 32 away from the feeding hole 38,
by adopting the above technical scheme, the buffer block 33 buffers to avoid deformation of the ball.
Further, a collecting cylinder 82 is arranged in the middle of the upper end of the collecting plate 83, a dust screen 81 is arranged at the upper end of the inside of the collecting cylinder 82, a plurality of air inlets 84 are uniformly arranged at the lower end of the collecting plate 83, an exhaust fan 85 is arranged in the middle of the collecting plate 83,
by adopting the above technical scheme, suction fan 85 rotates to suck, so that sundries around the ball are sucked into collecting cylinder 82 and intercepted by dust screen 81.
In the invention, the dust screen 81 is connected with the inner wall of the collecting cylinder 82 in a buckling way, a sealing gasket is arranged at the joint of the dust screen 81 and the collecting cylinder 82,
through adopting above-mentioned technical scheme, make things convenient for the dismouting, be convenient for clear up debris.
Further, the collecting cylinder 82 is internally provided with a collecting ring 86, the lower end of the collecting ring 86 is provided with an inclined structure,
by adopting the technical scheme, sundries are conveniently collected, and the sundries are prevented from flowing back.
In the invention, the preparation method of the preparation equipment of the steel liquid refining agent comprises the following steps:
(1) the raw materials are as follows: the steel liquid refining agent comprises the following ingredients: 55-60% of volcanic aluminosilicate raw materials (wherein the weight percentage of SiO2 is 74%, the weight percentage of Al2O3 is 13%, the weight percentage of Na2O+K2O is 6%, and the balance) is 20-25% of soda ash (the content of Na2CO3 is more than 95%), 15-20% of potassium feldspar, (the content of potassium is 9-12%), 15-20% of limestone (the content of CaCO3 is more than 90%), 8-10% of fine iron powder (the content of Fe2O3 is more than 80%), and 3% of calcium bentonite;
(2) and (3) mixing and grinding: the raw materials mixed in proportion enter a grinding box 12 from a feed inlet 13, an electric telescopic rod 11 stretches to drive a fixing frame 18 to move downwards, a driving motor 17 rotates to drive an upper grinding roller 16 to rotate, the upper grinding roller 16 and a lower film pressing roller 14 are matched to grind the mixture, the mixture is ground to 325 target standard screen residue less than 15%, and the ground material is discharged from a discharge port 15;
(3) and (3) mixing and granulating: the ground material is discharged from a discharge hole 15, 8-10% of water is added, and the mixture enters a disc granulator 2 to form balls with the diameter of about 8-12 mm;
(4) and (3) material separation and ash removal: the material balls are discharged through the material distributing component 3, enter the material distributing barrel 31 from the material inlet 38 and fall onto the buffer cushion 37, the buffer cushion 37 has buffer force under the action of the elastic force of the reset spring 35, so that the material balls cannot deform when falling down, then the material balls roll in the material distributing chute 32, are discharged from the material outlet 34, and are uniformly distributed, so that accumulation is avoided; the exhaust fan 85 rotates to suck, so that sundries around the balls are sucked into the collecting cylinder 82 and intercepted by the dust-proof net 81, and the sundries fall into the collecting ring 86;
(5) sintering a product: the material balls with the separated materials and the ash removed are conveyed into a sintering machine 5 through a conveying belt 4, waste heat flue gas is firstly conveyed by adopting a vent pipe 7, the material balls are dried to 300-400 ℃ from room temperature, the drying is kept for about 25-30 minutes, then the material balls enter a calcining zone of 1050-1200 ℃ for sintering, the sintering time is 15-20 minutes, then ventilation cooling, namely, heat exchange air enters a calcining zone for about 30 minutes, the whole sintering cooling process is about 70-80 minutes, the sintering materials are crushed and ground, and the 150-target standard screen residue is less than 20%, so that the finished product is obtained.
The working principle and the using flow of the invention are as follows: when the method is used, the proportioning of the ingredients of the steel liquid refining agent is firstly carried out, wherein the volcanic aluminosilicate raw material is 55-60% (wherein the mass fraction of SiO2 is 74%, the Al2O3 is 13%, the Na2O+K2O is 6%, and the balance is), the soda ash is 20-25% (the Na2CO3 content is more than 95%), the potassium feldspar is 15-20% > (the potassium content is 9-12%), the limestone (CaCO 3 content is more than 90%) is 15-20%, the fine iron powder is 8-10% (the Fe2O3 content is more than 80%), and the calcium bentonite is 3%; the raw materials mixed in proportion enter a grinding box 12 from a feed inlet 13, an electric telescopic rod 11 stretches to drive a fixing frame 18 to move downwards, a driving motor 17 rotates to drive an upper grinding roller 16 to rotate, the upper grinding roller 16 and a lower film pressing roller 14 are matched to grind the mixture, the mixture is ground to 325 target standard screen residue less than 15%, and the ground material is discharged from a discharge port 15; adding 8-10% water, and making into pellet with diameter of 8-12mm in the disk granulator 2; the material balls are discharged through the material distributing component 3, enter the material distributing barrel 31 from the material inlet 38 and fall onto the buffer cushion 37, the buffer cushion 37 has buffer force under the action of the elastic force of the reset spring 35, so that the material balls cannot deform when falling down, then the material balls roll in the material distributing chute 32, are discharged from the material outlet 34, and are uniformly distributed, so that accumulation is avoided; the exhaust fan 85 rotates to suck, so that sundries around the balls are sucked into the collecting cylinder 82 and intercepted by the dust-proof net 81, and the sundries fall into the collecting ring 86; the material-separated and ash-removed material balls are conveyed into a sintering machine 5 through a conveying belt 4, waste heat flue gas is firstly conveyed by a vent pipe 7, the material balls are dried to 300-400 ℃ from room temperature, the drying is kept for about 25-30 minutes, then the material balls enter a calcining zone of 1050-1200 ℃ for sintering, the sintering time is 15-20 minutes, then ventilation cooling is carried out, namely, heat exchange air enters a calcining zone for about 30 minutes, the whole sintering cooling process is carried out for about 70-80 minutes, the sintered material is crushed and ground, and the 150-target standard screen residue is less than 20%, so that the finished product is prepared;
the chemical composition of the final product is such that,
SiO2 Na2O+K2O CaO FeO+Fe 2O3 Al2O3 balance
42-46％ 20-22％ 13-15％ 9-11％ 7-8％ 6-10％
The method is used for casting and metallurgical processes, plays roles in gathering and purifying nonmetallic inclusions in the steel liquid so as to realize the steel liquid with high purity, thereby obtaining high-quality steel and casting products.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The preparation equipment for the steel liquid refining agent is characterized in that:
the device comprises a grinding device (1), wherein a lower end pipeline of the grinding device (1) is connected with a disc granulator (2), one end of the disc granulator (2) is provided with a sintering machine (5), two ends of the sintering machine (5) are provided with conveying belts (4), the upper end of a calcining zone of the sintering machine (5) is provided with a heat recovery box (6), the upper end of the heat recovery box (6) is provided with a vent pipe (7), and the other end of the vent pipe (7) extends into a front end drying zone of the sintering machine (5);
the grinding device (1) comprises an electric telescopic rod (11), a grinding box (12), a feed inlet (13), a lower film pressing roller (14), a discharge outlet (15), an upper grinding roller (16), a driving motor (17), a fixing frame (18) and supporting legs (19), wherein the electric telescopic rod (11) is arranged at the upper end of the grinding box (12), the fixing frame (18) is arranged at the lower end of the electric telescopic rod (11), the driving motor (17) is arranged in the fixing frame (18), the upper grinding roller (16) is arranged on a rotating shaft of the driving motor (17), the lower film pressing roller (14) is arranged at the bottom of the grinding box (12), the discharge outlet (15) is arranged in the middle of the bottom of the grinding box (12), the feed inlet (13) is arranged on the side edge of the grinding box (12), and the supporting legs (19) are arranged around the bottom of the grinding box (12).
The discharging pipe of the disc granulator (2) is provided with a distributing component (3), the distributing component (3) comprises a distributing cylinder (31), a distributing chute (32), a discharging hole (34), a reset spring (35), a distributing block (36), a buffer pad (37) and a feeding hole (38), wherein the distributing block (36) is arranged at the bottom of the inside of the distributing cylinder (31), a plurality of through discharging holes (34) are uniformly arranged in the middle of the distributing block (36), the feeding hole (38) is arranged at the upper end of the distributing cylinder (31), and distributing chute (32) are arranged at two sides of the upper end of the distributing block (36);
the dust-proof collecting device comprises a collecting plate (83), wherein a collecting cylinder (82) is arranged in the middle of the upper end of the collecting plate (83), a dust screen (81) is arranged at the upper end of the inside of the collecting cylinder (82), a plurality of air inlets (84) are uniformly formed in the lower end of the collecting plate (83), and an exhaust fan (85) is arranged in the middle of the collecting plate (83);
a collecting ring (86) is arranged in the collecting cylinder (82), and the lower end of the collecting ring (86) is of an inclined structure;
the preparation method of the preparation equipment of the steel liquid refining agent comprises the following steps:
(1) the raw materials are as follows: the steel liquid refining agent comprises the following ingredients: 55-60% of volcanic aluminosilicate raw materials (wherein the weight percentage of SiO2 is 74%, the weight percentage of Al2O3 is 13%, the weight percentage of Na2O+K2O is 6%, and the balance) is 20-25% of soda ash (the content of Na2CO3 is more than 95%), 15-20% of potassium feldspar, (the content of potassium is 9-12%), 15-20% of limestone (the content of CaCO3 is more than 90%), 8-10% of fine iron powder (the content of Fe2O3 is more than 80%), and 3% of calcium bentonite;
(2) and (3) mixing and grinding: raw materials mixed in proportion enter a grinding box (12) from a feed inlet (13), an electric telescopic rod (11) stretches to drive a fixing frame (18) to move downwards, a driving motor (17) rotates to drive an upper grinding roller (16) to rotate, the upper grinding roller (16) is matched with a lower film pressing roller (14) to grind a mixture, the mixture is ground to 325 target standard screen residue less than 15%, and the ground material is discharged from a discharge outlet (15);
(3) and (3) mixing and granulating: the ground material is discharged from a discharge hole (15), 8-10% of water is added, and the mixture enters a disc granulator (2) to form balls with the diameter of about 8-12 mm;
(4) and (3) material separation and ash removal: the material balls are discharged through the material distribution component (3), enter the material distribution cylinder (31) from the material inlet hole (38) and fall onto the buffer pad (37), the buffer pad (37) has buffer force under the action of the elasticity of the reset spring (35), so that the material balls cannot deform when falling down, then the material balls roll in the material distribution chute (32) and are discharged from the material outlet hole (34), the material distribution is uniform, and the accumulation is avoided; the exhaust fan (85) rotates to suck, so that sundries around the balls are sucked into the collecting cylinder (82), intercepted by the dust screen (81) and fall into the collecting ring (86);
(5) sintering a product: the material balls with the separated materials and the ash removed are conveyed into a sintering machine (5) through a conveying belt (4), waste heat flue gas is conveyed by a vent pipe (7) firstly, the material balls are dried to 300-400 ℃ from room temperature, the drying is kept for about 25-30 minutes, then the material balls enter a calcining zone of 1050-1200 ℃ for sintering, the sintering time is 15-20 minutes, then ventilation cooling, namely, heat exchange air enters a calcining zone for about 30 minutes, the whole sintering cooling process is about 70-80 minutes, the sintering materials are crushed and ground, and the 150-target standard screen residue is less than 20%, so that the finished product is obtained.
2. The manufacturing apparatus for a steel liquid refining agent according to claim 1, characterized in that: the lower end inclination angle of the upper grinding roller (16) is consistent with the inner wall inclination angle of the lower film pressing roller (14).
3. The manufacturing apparatus for a steel liquid refining agent according to claim 1, characterized in that: one end of the material distributing chute (32) far away from the feeding hole (38) is provided with a buffer block (33).
4. The manufacturing apparatus for a steel liquid refining agent according to claim 1, characterized in that: the dustproof net (81) is connected with the inner wall of the collecting cylinder (82) in a buckling mode, and a sealing gasket is arranged at the joint of the dustproof net (81) and the collecting cylinder (82).
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