CN113564360A - Hot charging and hot conveying equipment for large-scale silicomanganese ore heating furnace and manufacturing process thereof - Google Patents
Hot charging and hot conveying equipment for large-scale silicomanganese ore heating furnace and manufacturing process thereof Download PDFInfo
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- CN113564360A CN113564360A CN202110951471.0A CN202110951471A CN113564360A CN 113564360 A CN113564360 A CN 113564360A CN 202110951471 A CN202110951471 A CN 202110951471A CN 113564360 A CN113564360 A CN 113564360A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 title claims abstract description 17
- 229910000720 Silicomanganese Inorganic materials 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 9
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 9
- 238000004321 preservation Methods 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 238000009749 continuous casting Methods 0.000 claims description 12
- 238000003723 Smelting Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 238000005098 hot rolling Methods 0.000 claims description 6
- 239000011490 mineral wool Substances 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000005097 cold rolling Methods 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 3
- 229910052693 Europium Inorganic materials 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052689 Holmium Inorganic materials 0.000 claims description 3
- 229910052765 Lutetium Inorganic materials 0.000 claims description 3
- 229910052779 Neodymium Inorganic materials 0.000 claims description 3
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 3
- 229910052773 Promethium Inorganic materials 0.000 claims description 3
- 229910052772 Samarium Inorganic materials 0.000 claims description 3
- 229910052771 Terbium Inorganic materials 0.000 claims description 3
- 229910052775 Thulium Inorganic materials 0.000 claims description 3
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 3
- 238000005275 alloying Methods 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000003009 desulfurizing effect Effects 0.000 claims description 3
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 claims description 3
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 3
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 3
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000010955 niobium Substances 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 3
- VQMWBBYLQSCNPO-UHFFFAOYSA-N promethium atom Chemical compound [Pm] VQMWBBYLQSCNPO-UHFFFAOYSA-N 0.000 claims description 3
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 3
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 2
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 229910000914 Mn alloy Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/08—Apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- 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
- C21C7/0006—Adding metallic additives
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/06—Alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
- F27D3/028—Roller rails or succession of small sized rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/108—Rockwool fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
Abstract
The invention discloses hot charging and hot conveying equipment for a large-scale silicomanganese ore heating furnace and a manufacturing process thereof, and relates to the technical field of metallurgy. The roller comprises a roller seat, a plurality of guide rollers and a top cover plate, wherein the guide rollers are distributed at equal intervals inside the roller seat; the roller seat and the top cover plate comprise an inner steel plate layer, a middle heat insulation layer and an outer steel plate layer which are welded and fixed. According to the invention, the heat preservation is carried out through the intermediate heat preservation layer, so that the hot charging and hot conveying equipment has a good heat preservation and heat insulation effect, the mechanical property is improved by adding alloy elements and rare earth metal elements in the manufacturing process of the inner steel plate layer and the outer steel plate layer, and the problems of non-ideal heat preservation property and poor mechanical property of the existing hot charging and hot conveying equipment and the manufacturing process thereof are solved.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to hot charging and hot conveying equipment for a large-scale silicon-manganese ore heating furnace and a manufacturing process thereof.
Background
The silicon-manganese alloy is an alloy consisting of manganese, silicon, iron, a small amount of carbon and other elements, is an iron alloy with wide application and high yield, the consumption of the alloy accounts for the second place of an electric furnace iron alloy product, the manganese and the silicon in the manganese-silicon alloy have strong affinity with oxygen, the alloy is widely applied to steel making, the yield growth speed of the alloy is higher than the average growth speed of the iron alloy and higher than the growth speed of steel, and the alloy becomes an indispensable composite deoxidizer and alloy additive in the steel industry.
The silicon-manganese alloy is produced by smelting manganese oxide and silicon dioxide in manganese ore and silica through carbon reduction in a submerged arc furnace, the silicon-manganese alloy is mainly used as a middle material of a deoxidizer and an alloying agent for steel production, and is also a main raw material for producing medium-low carbon ferromanganese, the silicon-manganese alloy can be smelted in large, medium and small submerged arc furnaces through continuous operation, and during smelting of the silicon-manganese ore in the submerged arc furnace, hot charging and hot conveying equipment is required to be used for conveying the raw materials to the submerged arc furnace.
Through retrieval, notice No. CN108048625A, notice date 2018.05.18 discloses a production process for reducing hot charging and hot conveying billet rolled steel plate cracks, which belongs to the technical field of steel making and specifically comprises the following steps: the steel plate finally prepared by the processes of molten iron pretreatment, converter smelting, LF refining, pouring, casting blank cooling, steel billet off-line, heating rolling and steel plate stacking cooling has excellent comprehensive performance, the crack rate of hot charging and hot conveying of the steel billet is less than or equal to 5 percent, the flaw detection rate of the rolled plate is more than or equal to 99.5 percent, the crack rate of the rolled steel plate is greatly reduced, the investment of enterprises is reduced, the quality qualification rate of products is improved, and the production cost is reduced.
The patent has the following disadvantages:
1. the steel plate manufactured by the steel plate production process has poor mechanical property and insufficient strength, is difficult to adapt to the production of large-scale silicomanganese ore, and has no excellent structural characteristic;
2. the hot charging and hot conveying equipment prepared by the steel plate production process has a non-ideal heat preservation effect and poor practicability.
Therefore, the existing steel plate production process cannot meet the requirements in practical use, so that an improved technology is urgently needed in the market to solve the problems.
Disclosure of Invention
The invention aims to provide hot charging and hot conveying equipment for a large-scale silicomanganese ore heating furnace and a manufacturing process thereof.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to hot charging and hot conveying equipment for a large-scale silicomanganese ore heating furnace, which comprises a roller seat, a guide roller and a top cover plate, wherein a plurality of guide rollers which are distributed at equal intervals are arranged inside the roller seat;
the roller seat and the top cover plate comprise an inner steel plate layer, a middle heat insulation layer and an outer steel plate layer, the inner steel plate layer and the outer steel plate layer are fixedly welded, and the middle heat insulation layer is filled between the inner steel plate layer and the outer steel plate layer.
Furthermore, the middle heat-insulating layer is made of a mixture of rock wool, glass fiber cotton, polystyrene and polyurethane, the mass ratio of the rock wool to the glass fiber cotton to the polystyrene to the polyurethane is set to be 3:1:2:1, the middle heat-insulating layer is honeycomb-shaped, and the heat-insulating effect of the middle heat-insulating layer is improved due to the honeycomb-shaped design.
The invention also provides a manufacturing process of the large-scale silicomanganese ore heating furnace hot charging and hot conveying equipment, wherein the manufacturing process of the inner steel plate layer and the outer steel plate layer comprises the following steps:
s1: the method comprises the following steps of (1) molten iron pretreatment, namely desiliconizing, desulfurizing and dephosphorizing molten iron, and vanadium, niobium and tungsten extraction treatment of the molten iron;
s2: adding the pretreated molten iron and the scrap steel into an electric arc furnace for smelting, and adding alloy elements and rare earth metal elements for continuous smelting after the scrap steel is completely molten;
s3: then continuously casting the steel plate by using continuous casting equipment to obtain a plate blank;
s4: rapidly spraying water to cool the plate blank, then continuously heating, and processing by a hot rolling mill to obtain a hot rolled plate coil;
s5: and (3) rapidly spraying water for cooling the hot rolled coil, processing the hot rolled coil by a cold rolling mill, and finally performing heat treatment coating treatment to obtain coated sheets, namely an inner steel plate layer and an outer steel plate layer.
Further, the alloying elements in S2 are germanium, titanium and molybdenum.
Further, the rare earth metal element in S2 is set to be any one or more of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium.
Further, the surface cooling rate of the continuous casting slab is controlled to be 30-40 ℃/S and the surface cooling time of the continuous casting slab is controlled to be 20-30S in the step S4 until the surface temperature of the continuous casting slab is reduced to 500-600 ℃.
Further, the surface cooling rate of the hot rolled coil is controlled to be 20-30 ℃/S and the surface cooling time of the hot rolled coil is controlled to be 20-30S in the step S5 until the surface temperature of the continuous cast slab is reduced to 400-500 ℃.
The invention has the following beneficial effects:
1. the high-strength steel plate is obtained by arranging the inner steel plate layer, the middle heat-insulating layer and the outer steel plate layer, insulating through the middle heat-insulating layer, adding alloy elements and rare earth metal elements in the manufacturing process of the inner steel plate layer and the outer steel plate layer to refine steel grains and improve mechanical properties, rapidly spraying water to and cooling a continuous casting plate blank, then carrying out hot rolling, rapidly spraying water to and cooling a hot rolling plate coil, then carrying out cold rolling, and combining various manufacturing processes.
2. According to the hot charging and hot conveying device, the top cover plate, the sliding groove and the sliding rail are arranged, so that the hot charging and hot conveying device has a good heat preservation and heat insulation effect, the heat of the raw materials of the submerged arc furnace on the guide roller is not easy to lose during hot charging and hot conveying, the smelting effect of the subsequent submerged arc furnace is improved, the top cover plate can slide along the sliding groove by arranging the sliding groove and the sliding rail, and the hot charging and hot conveying device is more convenient when the internal condition of the roller seat needs to be checked.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic exterior view of the overall structure of the present invention;
FIG. 2 is a schematic view of the roller base and the guide roller of the present invention;
fig. 3 is a sectional view of the overall structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a roller base; 2. a guide roller; 3. a top cover plate; 4. an inner steel sheet layer; 5. an intermediate insulating layer; 6. an outer steel sheet layer; 101. a chute; 301. a slide rail.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-2, the hot charging and hot conveying equipment for the large-scale silicomanganese ore heating furnace comprises a roller seat 1, guide rollers 2 and a top cover plate 3, wherein the plurality of guide rollers 2 distributed at equal intervals are arranged inside the roller seat 1, the plurality of top cover plates 3 distributed at equal intervals are arranged at the top of the roller seat 1, a slide rail 301 is arranged at the bottom of each top cover plate 3, the slide rail 301 is in sliding fit with a slide groove 101, the slide groove 101 is arranged at the top of the roller seat 1, heat can be prevented from escaping from the top through the top cover plate 3, and the top cover plate 3 can slide along the slide groove 101 through the arrangement of the slide groove 101 and the slide rail 301.
As shown in figure 3, the roller seat 1 and the top cover plate 3 respectively comprise an inner steel plate layer 4, a middle heat-insulating layer 5 and an outer steel plate layer 6, the inner steel plate layer 4 and the outer steel plate layer 6 are welded and fixed, the middle heat-insulating layer 5 is filled between the inner steel plate layer 4 and the outer steel plate layer 6, the middle heat-insulating layer 5 is made of a mixture of rock wool, glass fiber wool, polystyrene and polyurethane, the mass ratio of the rock wool, the glass fiber wool, the polystyrene and the polyurethane is set to be 3:1:2:1, the middle heat-insulating layer 5 is in a honeycomb shape, heat is insulated through the middle heat-insulating layer 5, the hot charging and heat-insulating device has a good heat-insulating effect, when hot charging and heat transmitting are carried out, the heat of raw materials of the submerged arc furnace on the guide roller 2 is not easily lost, and the smelting effect of a subsequent submerged arc furnace is improved.
The invention also provides a manufacturing process of the large-scale silicomanganese ore heating furnace hot charging and hot conveying equipment, wherein the manufacturing process of the inner steel plate layer 4 and the outer steel plate layer 6 comprises the following steps:
s1: the method comprises the following steps of (1) molten iron pretreatment, namely desiliconizing, desulfurizing and dephosphorizing molten iron, and vanadium, niobium and tungsten extraction treatment of the molten iron;
s2: adding the pretreated molten iron and the scrap steel into an electric arc furnace for smelting, adding alloy elements and rare earth metal elements for continuous smelting after the scrap steel is completely melted, wherein the alloy elements are germanium, titanium and molybdenum, the metal germanium element can improve the hardness and the antioxidation effect, the metal titanium element can compact the internal structure of the steel, refine the grain strength, reduce the aging sensitivity and the cold brittleness, improve the welding performance, avoid intergranular corrosion, the metal molybdenum element can refine the grains of the steel, improve the hardenability and the heat strength, keep enough strength and creep resistance at high temperature, improve the mechanical performance, and inhibit the brittleness of the alloy steel caused by fire, the rare earth metal elements are one or more of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, thulium, ytterbium and lutetium, and the rare earth metal elements are added into the steel, the composition, the form, the distribution and the property of inclusions in steel can be changed, and crystal grains are greatly refined, so that various properties of the steel, such as toughness, weldability, cold processing property and wear resistance, are improved;
s3: then continuously casting the steel plate by using continuous casting equipment to obtain a plate blank;
s4: rapidly spraying water to cool the plate blank, then continuously heating, and processing by a hot rolling mill to obtain a hot rolled plate coil, wherein the surface cooling rate of the continuous cast plate blank is controlled at 30-40 ℃/s, and the surface cooling time of the continuous cast plate blank is controlled at 20-30s until the surface temperature of the continuous cast plate blank is reduced to 600 ℃;
s5: and carrying out rapid water spray cooling on the hot rolled plate coil, wherein the surface cooling rate of the hot rolled plate coil is controlled to be 20-30 ℃/s, the surface cooling time of the hot rolled plate coil is controlled to be 20-30s until the surface temperature of the continuous cast plate blank is reduced to 400 ℃ and 500 ℃, and finally carrying out heat treatment coating treatment after the hot rolled plate coil is processed by a cold rolling mill to obtain coated sheets, namely an inner steel plate layer 4 and an outer steel plate layer 6.
The inner steel plate layer 4 and the outer steel plate layer 6 are subjected to rapid water spray cooling on a continuous casting plate blank, then are subjected to hot rolling, and then are subjected to cold rolling, and various manufacturing processes are combined to obtain the high-strength steel plate.
The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a hot stove hot charging of large-scale silicon manganese ore heat is sent and is equipped, includes roller holder (1), deflector roll (2) and lamina tecti (3), its characterized in that: a plurality of guide rollers (2) which are distributed at equal intervals are arranged inside the roller seat (1), a plurality of top cover plates (3) which are distributed at equal intervals are arranged at the top of the roller seat (1), a sliding rail (301) is arranged at the bottom of each top cover plate (3), the sliding rail (301) is in sliding fit with the sliding groove (101), and the sliding groove (101) is arranged at the top of the roller seat (1);
roller seat (1) and lamina tecti (3) all include interior steel sheet layer (4), middle heat preservation (5) and outer steel sheet layer (6), welded fastening between interior steel sheet layer (4) and outer steel sheet layer (6), middle heat preservation (5) are filled between interior steel sheet layer (4) and outer steel sheet layer (6).
2. The large-scale silicomanganese ore hot furnace hot charging and heat delivery equipment as claimed in claim 1, wherein the intermediate heat insulation layer (5) is made of rock wool, glass fiber wool, a mixture of polystyrene and polyurethane, the mass ratio of the rock wool, the glass fiber wool, the polystyrene and the polyurethane is set to be 3:1:2:1, and the intermediate heat insulation layer (5) is made into a honeycomb shape.
3. The manufacturing process of the hot charging and heat delivery equipment of the large-scale silicomanganese ore heating furnace is characterized in that the manufacturing process of the inner steel plate layer (4) and the outer steel plate layer (6) comprises the following steps:
s1: the method comprises the following steps of (1) molten iron pretreatment, namely desiliconizing, desulfurizing and dephosphorizing molten iron, and vanadium, niobium and tungsten extraction treatment of the molten iron;
s2: adding the pretreated molten iron and the scrap steel into an electric arc furnace for smelting, and adding alloy elements and rare earth metal elements for continuous smelting after the scrap steel is completely molten;
s3: then continuously casting the steel plate by using continuous casting equipment to obtain a plate blank;
s4: rapidly spraying water to cool the plate blank, then continuously heating, and processing by a hot rolling mill to obtain a hot rolled plate coil;
s5: and (3) rapidly spraying water for cooling the hot rolled coil, processing the hot rolled coil by a cold rolling mill, and finally performing heat treatment coating treatment to obtain coated sheets, namely an inner steel plate layer (4) and an outer steel plate layer (6).
4. The manufacturing process of a large-scale silicomanganese ore hot furnace hot charging and hot conveying equipment according to claim 3, wherein the alloying elements in S2 are germanium, titanium and molybdenum.
5. The manufacturing process of large-scale siloxanite furnace hot-charging hot-delivery equipment as claimed in claim 3, wherein the rare earth metal element in S2 is set to any one or more of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium.
6. The manufacturing process of the hot charging and heat transferring equipment of the large-scale siloxanite hot furnace as claimed in claim 3, wherein the surface cooling rate of the continuous casting slab is controlled to be 30-40 ℃/S and the surface cooling time of the continuous casting slab is controlled to be 20-30S in the step S4 until the surface temperature of the continuous casting slab is reduced to 500-600 ℃.
7. The manufacturing process of the hot charging and conveying equipment of the large-scale siloxanium furnace as claimed in claim 3, wherein the surface cooling rate of the hot-rolled plate coil is controlled to be 20-30 ℃/S and the surface cooling time of the hot-rolled plate coil is controlled to be 20-30S in S5 until the surface temperature of the continuous casting plate blank is reduced to 400-500 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110951471.0A CN113564360A (en) | 2021-08-18 | 2021-08-18 | Hot charging and hot conveying equipment for large-scale silicomanganese ore heating furnace and manufacturing process thereof |
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| CN202110951471.0A CN113564360A (en) | 2021-08-18 | 2021-08-18 | Hot charging and hot conveying equipment for large-scale silicomanganese ore heating furnace and manufacturing process thereof |
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| CN113564360A true CN113564360A (en) | 2021-10-29 |
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Cited By (1)
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| CN115161498A (en) * | 2022-08-19 | 2022-10-11 | 宁夏森源重工设备有限公司 | Process for producing manganese metal by large-scale submerged arc furnace |
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