CN116951991B - 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy - Google Patents
45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy Download PDFInfo
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- CN116951991B CN116951991B CN202310997962.8A CN202310997962A CN116951991B CN 116951991 B CN116951991 B CN 116951991B CN 202310997962 A CN202310997962 A CN 202310997962A CN 116951991 B CN116951991 B CN 116951991B
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- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 53
- 239000011574 phosphorus Substances 0.000 title claims abstract description 53
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910000676 Si alloy Inorganic materials 0.000 title claims abstract description 28
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000002788 crimping Methods 0.000 abstract description 29
- 230000000694 effects Effects 0.000 abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 27
- 238000001179 sorption measurement Methods 0.000 description 19
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 229910045601 alloy Inorganic materials 0.000 description 12
- 239000000956 alloy Substances 0.000 description 12
- 238000012258 culturing Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000914 Mn alloy Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- CLMUWJTUNRZDIH-UHFFFAOYSA-N [Mn].[Si].[P] Chemical compound [Mn].[Si].[P] CLMUWJTUNRZDIH-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MQMHJMFHCMWGNS-UHFFFAOYSA-N phosphanylidynemanganese Chemical compound [Mn]#P MQMHJMFHCMWGNS-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000005997 Calcium carbide Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 229910001145 Ferrotungsten Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000720 Silicomanganese Inorganic materials 0.000 description 1
- 229910006639 Si—Mn Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
- H05B7/103—Mountings, supports or terminals with jaws
- H05B7/105—Mountings, supports or terminals with jaws comprising more than two jaws equally spaced along circumference, e.g. ring holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy, which comprises an arc-shaped clamping part and a driving piece, wherein the driving piece is used for driving the arc-shaped clamping part to move towards a direction close to an electrode, and also comprises a crimping part, the crimping part is attached to the edge of the arc-shaped clamping part, and when the driving piece drives the arc-shaped clamping part to attach to the outer wall of the electrode and continuously pressurize, the crimping part extrudes the edge of the arc-shaped clamping part; according to the 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy, the arc-shaped clamping part is driven to move towards the direction close to the electrode by the driving part, so that the arc-shaped clamping part is attached to the outer wall of the electrode, the middle part of the arc-shaped clamping part is continuously pressurized by the driving part, the outer wall of the electrode is clamped by the middle part of the arc-shaped clamping part, and meanwhile, the edge of the arc-shaped clamping part is passively pressurized, so that the clamping effect of the whole self-culture electrode is ensured.
Description
Technical Field
The invention relates to a low-phosphorus manganese silicon alloy production technology, in particular to a 45MVA closed electric furnace for low-phosphorus manganese silicon alloy production.
Background
In the production of silicon-manganese alloys, since the ore component contains a certain amount of phosphorus, a certain amount of phosphorus enters the alloy component during smelting. The Si-Mn alloy is a product which is added into molten iron to make the steel possess certain characteristics or meet certain requirements. The phosphorus in the silicomanganese alloy also enters the steel. The major hazards of phosphorus in steel are the following: firstly, the plasticity, toughness and weldability of the steel are reduced, when the steel bar is welded, the main hazard of phosphorus is that the weld joint generates cold embrittlement, and the toughness, particularly low temperature impact toughness, of weld joint metal is reduced along with the increase of the phosphorus content, so that the phosphorus is completely dissolved in ferrite in the steel. Secondly, although ferrite strength and hardness can be improved, plasticity and impact toughness of the steel at low temperature are drastically reduced, and the steel becomes brittle, which is called cold embrittlement. Thirdly, because the tempering brittleness of the steel has close relation with the content of phosphorus, even a small amount of phosphorus can improve the sensitivity of the steel to the tempering brittleness, and the tempering brittleness is generated in the range from the high temperature tempering when phosphorus and manganese coexist. So that for some special steels, phosphorus is a harmful element for steel smelting, and for molten steel, the source of phosphorus mainly depends on the phosphorus content in molten iron and the phosphorus content in silicon-manganese alloy.
In the prior art, the reduction dephosphorization is a common method for reducing the phosphorus of the ferroalloy, wherein the phosphorus is possibly reduced into elemental phosphorus in the reduction dephosphorization process, and volatilized into a gas phase under the high-temperature condition. The distribution ratio of phosphorus in dephosphorizing agent, alloy and gas phase is as follows: 16% -35% of alloy, 16% -20% of dephosphorizing agent and 40% -60% of gas phase. The phosphorus in the alloy is mainly from ore and coke, the phosphorus-manganese ratio in the normal furnace-feeding raw material is between 0.0016 and 0.0018, and the low phosphorus ore can be used under the condition of not improving the production cost, and the phosphorus-manganese ratio is reduced to about 0.0007 so as to reduce the furnace-feeding amount of phosphorus element, thereby reducing the phosphorus content in the alloy and enabling the alloy to stably produce products of the same type.
Meanwhile, ladle pouring operation is needed before the furnace, after the molten iron is discharged from the furnace, the molten iron is slowly poured into a ladle filled with dephosphorizing agent in advance, slag separation and pouring are carried out, and alloy phosphorus can be obviously reduced. The dephosphorizing agent can also be lime or metallic aluminum. Since phosphorus and aluminum in the alloy have a solubility product relationship, a high Al-containing ore can be selected for the raw material selection, and an aluminum slag type can be used. In the prior art, when the alloy silicon content is high, the phosphorus content is reduced, and the dephosphorization rate is greatly influenced by the oxygen potential, and the lower the oxygen potential is, the higher the dephosphorization rate is, so that the alloy silicon is controlled between 18 and 19, and the phosphorus content can be further reduced.
In order to reduce the harm of phosphorus to steel products, the production of low-phosphorus ordinary silicon-manganese alloy in an electric furnace is generally realized by changing raw materials for charging and using different dephosphorizing agents in the prior art. The electric furnace is a main workplace, is mainly used for reducing and smelting raw materials such as ores, carbonaceous reducing agents, solvents and the like, is also used for producing ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, ferrosilicomanganese and the like, and is an important industrial raw material in the metallurgical industry and a chemical raw material such as calcium carbide and the like. The electric furnace is characterized in that a carbonaceous or magnesia refractory material is used as a furnace lining, and self-culturing electrodes are used. The electrode is inserted into the furnace burden to perform submerged arc operation, the energy of the electric arc and the energy conversion of the current passing through the furnace burden are utilized, and the energy is generated due to the resistance of the furnace burden to smelt metals, and the industrial electric furnace is operated continuously by sequential feeding, intermittent tapping and continuous operation. The electric furnace mainly comprises a furnace shell, a furnace cover, a furnace lining, a short net, a water cooling system, a smoke discharging system, a dust removing system, an electrode shell, an electrode pressure releasing and lifting system, a loading and unloading system, a holder, a burner, a hydraulic system, an ore smelting furnace transformer, various electrical equipment and the like.
If the authorized bulletin number is CN212785889U, the authorized bulletin date is 2021, 03 and 23, the patent is named as an electric furnace electrode holder for producing the low-carbon manganese-silicon alloy, and the electric furnace electrode holder comprises a holding frame, bolts, a hydraulic cylinder and an electrode; the holding frame consists of two semi-rings, namely a left semi-ring and a right semi-ring, wherein the two ends of the left semi-ring are respectively hinged with the two ends of the right semi-ring to form a complete annular structure; three threaded holes are formed in the left half ring at equal intervals along the radial direction, and bolts are screwed in the threaded holes; the left half ring is of a cavity structure, and a water inlet and a water outlet are respectively arranged at two ends of the left half ring; three tooling holes are formed in the right semi-ring at equal intervals along the radial direction, a hydraulic cylinder is arranged in each tooling hole, and a piston of the hydraulic cylinder faces inwards; the right semi-ring is of a cavity structure; the holder is implemented in a mode of combining hydraulic jacking and mechanical jacking, so that the electrode is held tightly and opened more quickly and conveniently, meanwhile, cooling water is introduced into the holder, the holder can be cooled well, and the service life of the holder is prolonged.
The self-culturing electrode is generally cylindrical, in order to freely control the movement of the self-culturing electrode, a clamping cylinder is usually used to drive a clamping member to press the surface of the self-culturing electrode so as to hold the self-culturing electrode, and in order to improve the clamping force, the clamping member is preferably an arc-shaped member capable of being attached to the outer wall surface of the self-culturing electrode, in general, if the clamping member is of a hard structure which cannot be deformed, the clamping member may be difficult to be completely attached to the outer wall surface of the self-culturing electrode due to precision reasons and use reasons, and if the clamping member is of a soft structure with deformability, however, when the clamping member clamps the surface of the self-culturing electrode, the clamping force at the edge of the clamping member is insufficient, so that the whole holding effect of the self-culturing electrode is poor.
Disclosure of Invention
The invention aims to provide a 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy, which solves the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a low phosphorus manganese silicon alloy production is with 45MVA airtight electric stove, includes arc clamping part and driving piece, the driving piece is used for driving the arc clamping part to the direction motion that is close to the electrode, still includes crimping portion, crimping portion laminating is at arc clamping part edge, and when the driving piece driven the laminating of arc clamping part at the electrode outer wall and continue the pressurization, crimping portion extrudees arc clamping part edge.
The 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy further comprises an annular workbench, wherein the annular workbench is sleeved on the electrode, the driving piece is fixedly arranged on the annular workbench, and the arc-shaped clamping part is abutted to the upper end face of the annular workbench.
The 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy is characterized in that a plurality of driving parts are arranged, and each driving part is arranged on a certain diameter direction of the annular workbench.
The 45MVA airtight electric furnace for producing the low-phosphorus manganese silicon alloy is characterized in that a working frame is fixed at the output end of the driving piece, an opening is formed in one end, close to the electrode, of the working frame, a supporting rod is fixedly arranged on the inner wall of the working frame, a sleeve is sleeved on the supporting rod in a sliding manner, a pressure spring is connected between the sleeve and the supporting rod, and one end, close to the electrode, of the sleeve is fixedly connected with the arc-shaped clamping part.
The 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy is characterized in that the initial position of the arc clamping part is positioned between the electrode and the inner side wall of the annular workbench.
The 45MVA airtight electric furnace for producing the low-phosphorus manganese silicon alloy is characterized in that a first limiting block is arranged in the working frame, an elastic pressure rod is slidably arranged in the first limiting block, and the elastic pressure rod is connected with the crimping part.
The 45MVA airtight electric furnace for producing the low-phosphorus manganese silicon alloy is characterized in that a first mounting block is fixed at one end of the elastic pressure rod, which is far away from the electrode, and a first return spring is connected between the first mounting block and the first limiting block.
The 45MVA airtight electric furnace for producing the low-phosphorus manganese silicon alloy is characterized in that a sliding groove is formed in the inner wall of one side, far away from the electrode, of the working frame, a sliding block is arranged in the sliding groove in a sliding mode, a movable rod is connected between the sliding block and the sleeve in a rotating mode, and when the sleeve and the supporting rod slide relatively, the sleeve forces the sliding block to slide in the sliding groove.
The 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy is characterized in that the sliding block is fixedly provided with the mounting rod, the mounting rod is fixedly provided with the protruding block, and when the supporting rod compresses the pressure spring, the protruding block moves towards the direction close to the elastic pressure rod.
The 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy is characterized in that one end of the convex block, which is far away from the sleeve, is an inclined surface and is used for gradually extruding the elastic pressure rod.
In the technical scheme, the 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy provided by the invention drives the arc-shaped clamping part to move towards the direction close to the electrode through the driving part, so that the arc-shaped clamping part is attached to the outer wall of the electrode, the driving part is continuously used for pressurizing, the middle part of the arc-shaped clamping part clamps the outer wall of the electrode, and meanwhile, the edge of the arc-shaped clamping part is passively pressurized, so that the clamping effect of the whole self-culturing electrode is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a cross-sectional view of an arc clamping part, a crimping part and an internal structure of a working frame of a 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy according to an embodiment of the present invention.
Fig. 2 is a schematic view of a partial perspective structure of a 45MVA closed electric furnace for producing a low-phosphorus manganese silicon alloy according to still another embodiment of the present invention.
Fig. 3 is a schematic perspective view of an arc clamping part, a crimping part and a working frame of a 45MVA closed electric furnace for producing a low-phosphorus manganese silicon alloy according to another embodiment of the present invention.
Fig. 4 is a cross-sectional view showing the internal structures of an arc-shaped clamping portion, a press-fit portion and a work frame according to still another embodiment of the present invention.
Fig. 5 is a cross-sectional view of an arc clamping portion, a crimping portion and an inner structure of a work frame according to another embodiment of the present invention.
Fig. 6 is a partial cross-sectional view of a 45MVA closed electric furnace for producing a low phosphorus manganese silicon alloy according to still another embodiment of the present invention.
Fig. 7 is a cross-sectional view of a type frame and a spindle according to yet another embodiment of the present invention.
Fig. 8 is an enlarged view of a portion at X of fig. 6 in accordance with the present invention.
Reference numerals illustrate:
1. an arc-shaped clamping part; 11. a work frame; 111. a chute; 112. a sliding block; 113. a movable rod; 114. a mounting rod; 115. a bump; 12. a support rod; 13. a sleeve; 14. a pressure spring; 15. a first limiting block; 16. an elastic pressure rod; 17. a first mounting block; 18. a first return spring; 19. a connection assembly; 191. adsorption holes; 192. sliding the pressurizing block; 193. installing an arc plate; 194. a second limiting block; 195. a connecting rod; 196. a second mounting block; 197. a second return spring; 2. a crimping part; 20. a drive assembly; 201. a driving rod; 202. a first driving block; 203. a second driving block; 204. a third limiting block; 205. a moving rod; 206. a pass through slot; 207. a third return spring; 3. an annular workbench; 4. a turn-over assembly; 42. a rotating shaft; 43. a limit sliding block; 44. limiting sliding grooves; 45. a rotary gear; 46. a drive rack; 47. type rack; 48. a half ring groove; 49. and rotating the block.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-8, the 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy provided by the embodiment of the invention comprises an arc clamping part 1 and a driving piece (not shown in the figure), wherein the driving piece is used for driving the arc clamping part 1 to move towards a direction close to an electrode, the 45MVA closed electric furnace further comprises a crimping part 2, the crimping part 2 is attached to the edge of the arc clamping part 1, and when the driving piece drives the arc clamping part 1 to attach to the outer wall of the electrode and continuously pressurize, the crimping part 2 extrudes the edge of the arc clamping part 1.
In this embodiment, the closed electric furnace is in the prior art, and includes a furnace shell, a furnace cover, a furnace lining, a water cooling system, a smoke exhaust system, a dust removal system, an electrode shell, an electrode pressing and lifting system, a loading and unloading system, a holder, and the like, which are not described in detail herein; the arc clamping part 1 is of an arc plate-shaped structure, the diameter of the arc clamping part 1 is equal to the diameter of an electrode to be clamped, so that the arc inner wall of the arc clamping part 1 can be completely attached to the surface of the electrode, the arc clamping part 1 in the embodiment can be adjusted according to the diameter of the electrode to be clamped, and the driving piece is preferably a hydraulic cylinder; the pressure welding part 2 is preferably an arc-shaped block and can be attached to the edge of the arc-shaped clamping part 1; it is obvious that the power output end of the driving member in the prior art is generally cylindrical or various polygonal columns, the power output end of the driving member cannot completely cover the arc-shaped clamping part 1, in general, as can be easily thought by a person skilled in the art, the driving member can be connected to the edge of the arc-shaped clamping part 1 through a bracket, and then the driving member drives the bracket to move, however, in this way, the power output end of the driving member still applies pressure to the middle part of the bracket, the pressure applied to the edge of the arc-shaped clamping part 1 is insufficient, the edge of the arc-shaped clamping part 1 is not subjected to additional force in the extrusion process, thus the integral clamping force of the arc-shaped clamping part 1 is insufficient, and the manner provided by the implementation force can be used for carrying out additional extrusion on the arc-shaped clamping part 1, so that the clamping force of the arc-shaped clamping part 1 can be uniformly distributed at the same time; in this embodiment, the arc clamping portion 1 may be an elastic component or an elastic pressure component may be disposed on the arc clamping portion 1, and in a preferred embodiment, the arc clamping portion 1 is provided with an elastic pressure component, so that the arc clamping portion 1 may further be extruded towards the electrode direction after contacting the outer wall of the electrode, and thus, the compression joint portion 2 is driven to move by using the contraction distance of the elastic pressure component, and meanwhile, the elastic pressure component is also disposed to prevent damage to the arc clamping portion 1 or the outer wall of the electrode caused by too large pressing of the driving piece.
In still another embodiment, the invention further comprises an annular workbench 3, the annular workbench 3 is sleeved on the circumferential outer side of the electrode, the driving piece is fixedly arranged on the annular workbench 3, the arc-shaped clamping part 1 is abutted against the upper end face of the annular workbench 3, and the arc-shaped clamping part 1 can be attached to the upper end face of the annular workbench 3 for sliding; the driving parts are arranged in a plurality, each driving part is arranged in a certain diameter direction of the annular workbench 3, more preferably, the driving parts are uniformly arranged along the circumferential direction of the annular workbench 3, and therefore, when the driving parts drive the arc-shaped clamping parts 1 to move, the pressing centers of the arc-shaped clamping parts 1 can be concentrated, and the arc-shaped inner walls of the arc-shaped clamping parts 1 can be ensured to be completely attached to the outer walls of the electrodes.
In still another embodiment of the present invention, a working frame 11 is fixed at the output end of the driving member, an opening is provided at one end of the working frame 11 near the electrode, a supporting rod 12 is fixed on the inner wall of the working frame 11, a sleeve 13 is slidably sleeved on the supporting rod 12, a pressure spring 14 is connected between the sleeve 13 and the supporting rod 12, one end of the sleeve 13 near the electrode is fixedly connected with the arc-shaped clamping part 1, and a certain gap is provided between the crimping part 2 and the edge of the arc-shaped clamping part 1; when the electrode needs to be clamped, the driving piece drives the working frame 11 to move towards the direction close to the electrode, so that the arc clamping part 1 is firstly contacted with the outer wall of the electrode, the working frame 11 is continuously moved towards the direction close to the electrode, the supporting rod 12 and the sleeve 13 are forced to move relatively and compress the pressure spring 14, so that the pressure applied by the arc clamping part 1 to the electrode can be gradually increased, meanwhile, the relative movement between the supporting rod 12 and the sleeve 13 can be used as the power for driving the crimping part 2, in the embodiment, the crimping part 2 can be easily and easily connected into the working frame 11 through the elastic crimping rod, and when the arc clamping part 1 is contacted with the outer wall of the electrode, the working frame 11 is continuously pushed to move, the elastic crimping rod can be pushed to move towards the direction close to the electrode, and the crimping part 2 is enabled to squeeze the edge of the arc clamping part 1.
In still another embodiment of the present invention, the initial position of the arc-shaped clamping part 1 is located between the electrode and the inner side wall of the annular workbench 3; so, make arc clamping part 1 be in movable state, install first stopper 15 in the work frame 11, slidable mounting has elastic pressure pole 16 on the first stopper 15, interconnect between elastic pressure pole 16 and the crimping portion 2, when arc clamping part 1 earlier contacted with the electrode outer wall, continue to make work frame 11 to the direction that is close to the electrode move to extrude elastic pressure pole 16 and exert pressure to crimping portion 2 through elastic pressure pole 16, thereby exert pressure to arc clamping part 1 edge.
In still another embodiment of the present invention, a first mounting block 17 is further fixed at the end of the elastic pressure rod 16 away from the electrode, and a first return spring 18 is connected between the first mounting block 17 and the first limiting block 15; in this embodiment, the elastic pressure rod 16 has two movement strokes, namely, a self sliding stroke, when the first mounting block 17 is pressed, the elastic pressure rod 16 slides in a direction approaching to the arc-shaped clamping part 1 as a whole, and a compression stroke, when the compression part 2 contacts with the edge position of the arc-shaped clamping part 1, the compression part 2 is blocked, therefore, the first mounting block 17 presses the elastic pressure rod 16 to cause the self shrinkage, so that the elastic pressure rod 16 can apply pressure to the edge of the arc-shaped clamping part 1 by utilizing the two strokes, and when the working frame 11 returns, the elastic pressure rod 16 can also return rapidly under the elastic action of the first return spring 18; the elastic coefficient of the pressure spring 14 is far greater than that of the elastic pressure rod 16 and the first return spring 18, so that the movement of the sleeve 13 can drive the elastic pressure rod 16 to return in time.
In still another embodiment of the present invention, a sliding groove 111 is formed on an inner wall of a side of the working frame 11 far away from the electrode, a sliding block 112 is slidably installed in the sliding groove 111, a movable rod 113 is connected between the sliding block 112 and the sleeve 13, two ends of the movable rod 113 are respectively rotatably connected with the sliding block 112 and the sleeve 13, and when the sleeve 13 and the supporting rod 12 slide relatively, the sleeve 13 forces the sliding block 112 to slide in the sliding groove 111; when the arc clamping part 1 is driven to move towards the direction close to the electrode by the driving piece, so that the arc clamping part 1 is contacted with the outer wall of the electrode, and when the arc clamping part 11 is continuously driven to move towards the direction close to the electrode, the support rod 12 and the sleeve 13 relatively move, the movable rod 113 is forced to move by the movement of the sleeve 13, so that the sliding block 112 is driven to move in the sliding groove 111 towards the direction far from the sleeve 13, and the elastic pressure rod 16 is driven by the movement of the sliding block 112 and the pressure connection part 2 is driven to apply pressure to the edge of the arc clamping part 1; the sliding block 112 is fixed with a mounting rod 114, the mounting rod 114 is fixed with a bump 115, when the supporting rod 12 compresses the pressure spring 14, the bump 115 moves towards the direction close to the elastic pressure rod 16, when the sliding block 112 moves in the sliding groove 111 towards the direction far away from the sleeve 13, the mounting rod 114 and the bump 115 are driven to move towards the direction far away from the sleeve 13, so that the bump 115 gradually contacts with the first mounting block 17, the first mounting block 17 is driven to move towards the direction close to the electrode, and the elastic pressure rod 16 moves and drives the compression joint part 2 to apply pressure to the edge of the arc-shaped clamping part 1; the end of the projection 115 away from the sleeve 13 is inclined for gradually pressing the elastic pressure rod 16; the above embodiment provides a specific solution for the movement of the arc clamping part 1 and the crimping part 2, according to which it is easy to think by those skilled in the art that the crimping part 2 can be directly connected in the working frame 11 by the elastic crimping rod, so that when the arc clamping part 1 is in contact with the outer wall of the electrode and the working frame 11 is pushed to move continuously, the working frame 11 can push the elastic crimping rod to move in the direction approaching to the electrode and make the crimping part 2 press the edge of the arc clamping part 1, but when the relative movement distance between the arc clamping part 1 and the working frame 11 is small, that is, when the electrode size is not large, enough pressure cannot be applied to the crimping part 2, therefore, when the relative movement distance between the arc clamping part 1 and the working frame 11 is small, enough pressure can be applied to the crimping part 2, and at the same time, the adjustment of the annular workbench 3 and the driving piece size can be facilitated; in this embodiment, the force applied to the middle part of the arc-shaped clamping part 1 is actually transferred to the elastic pressure rod 16 and the compression joint part 2, and the middle part and the edge of the arc-shaped clamping part 1 are respectively extruded by the sleeve 13 and the elastic pressure rod 16, so that the pressure on the arc-shaped clamping part 1 is more balanced, and the arc-shaped clamping part 1 can be ensured to always maintain a certain radian in a long-term and always process.
Further, referring to fig. 3-4, it is apparent that the clamping force of the arc clamping portion 1 on the electrode is related to the friction coefficient of the electrode surface and the pressure applied by the driving member, and in order to ensure that the arc clamping portion 1 and the electrode surface are not damaged, the pressure applied by the driving member on the arc clamping portion 1 is also within a certain range, in order to further enhance the connection strength between the arc clamping portion 1 and the electrode, this embodiment provides a further technical scheme, that is, the connection assembly 19 is installed on the arc clamping portion 1, the connection assembly 19 includes an adsorption hole 191 opened on the arc clamping portion 1, a sliding pressurizing block 192 is slidably connected in the adsorption hole 191, a sliding sealing ring is further fixedly provided on the sliding pressurizing block 192, the sliding sealing ring is tightly attached to the inner wall of the adsorption hole 191, one end of the sliding pressurizing block 192 away from the electrode penetrates through the adsorption hole 191, the sleeve 13 is provided with a mounting arc plate 193 in a sliding sleeve manner, one end of the sliding pressurizing block 192 far away from the electrode is connected to the mounting arc plate 193, a second limiting block 194 is fixed in the working frame 11, a connecting rod 195 is slidably installed in the second limiting block 194, one end of the connecting rod 195 far away from the electrode is fixed with a second mounting block 196, the second mounting block 196 and the bump 115 are correspondingly matched, a second return spring 197 is connected between the second mounting block 196 and the second limiting block 194, the elastic coefficient of the pressure spring 14 is also larger than that of the second return spring 197, the second return spring 197 is in a compressed state and the sliding pressurizing block 192 fills the adsorption hole 191 in an initial state, when the supporting rod 12 and the sleeve 13 return under the elastic action of the pressure spring 14, at this time, the bump 115 contacts the second mounting block 196 and presses the connection rod 195, in this embodiment, both ends of the bump 115 in the moving direction are inclined planes, one inclined plane is used to gradually press the elastic pressure rod 16 and the press-connection part 2, and the other inclined plane is used to gradually press the connection rod 195 and the sliding pressurizing block 192; when the arc clamping part 1 is in specific work, after being contacted with the outer wall of the electrode, the working frame 11 is pushed continuously to the direction close to the electrode, so that the supporting rod 12 and the sleeve 13 are forced to move relatively and the pressure spring 14 is compressed, meanwhile, the movement of the sleeve 13 drives the sliding block 112 to slide in the sliding groove 111 and drive the convex block 115 to be gradually separated from the second mounting block 196, under the elastic action of the second return spring 197, the connecting rod 195 and the mounting arc plate 193 move to the direction far from the electrode and drive the sliding pressurizing block 192 to move to the direction far from the electrode in the adsorption hole 191, and at the moment, the arc clamping part 1 is tightly attached to the outer wall of the electrode, so that the adsorption hole 191 is in a vacuum state, and the adsorption force is applied to the electrode through each adsorption hole 191, so that the connection between the arc clamping part 1 and the electrode is enhanced, and the arc clamping part 1 is limited to the position of the electrode not only depending on the friction force, so that the working effect of the arc clamping part 1 is improved; the connecting assembly 19 has two working states, namely an initial state, namely a state without clamping the electrode, in which the bump 115 is in contact with the second mounting block 196, the second return spring 197 is in a compressed state, the sliding pressurizing block 192 fills the adsorption hole 191, no relative sliding occurs between the support rod 12 and the sleeve 13 at this time, and an adsorption state, in which the bump 115 is in contact with the first mounting block 17, the second return spring 197 is still in a compressed state, but the compressed state is caused by the fact that the second return spring 197 cannot be completely returned, and the sliding pressurizing block 192 slides in the adsorption hole 191 for a distance away from the electrode.
Still further, referring to fig. 5, in the above embodiment, the sliding pressurizing block 192 is driven to move by the force generated when the second return spring 197 returns to the normal state, the sliding pressurizing block 192 moves in the suction hole 191 and generates a vacuum environment, however, the force generated when the second return spring 197 returns to the normal state is limited, the suction force of the vacuum environment to the electrode is limited, for this purpose, a further embodiment is proposed, which aims to further strengthen the connection between the arc clamping portion 1 and the electrode, and this embodiment includes a driving assembly 20, where the driving assembly 20 includes a driving rod 201 fixed on the sliding block 112, one end of the driving rod 201 is fixedly connected on the sliding block 112, the other end is slidably abutted in the sliding slot 111, two ends of the driving rod 201 are respectively provided with the first driving block 202 and the second driving block 203, the first driving block 202 and the first mounting block 17 are correspondingly matched and are used for the movement of the first mounting block 17, the first driving block 202 is mounted at one end, close to the electrode, of the driving rod 201, the second driving block 203 is mounted at one end, far away from the electrode, of the driving rod 201, inclined planes are arranged on the first driving block 202 and the second driving block 203, a third limiting block 204 is mounted in the working frame 11, a moving rod 205 is slidably mounted in the third limiting block 204, the second driving block 203 and the moving rod 205 are correspondingly matched and can extrude the moving rod 205 to move, the moving rod 205 is connected with the mounting arc plate 193, a through groove 206 is formed at one side, far away from the electrode, a third return spring 207 is connected between the moving rod 205 and the working frame 11, the first driving block 202 can freely pass through the through groove 206, when the sliding block 112 moves in a direction far away from the sleeve 13 in a concrete working mode, the driving rod 201 is synchronously driven to move, the first driving block 202 passes through the through groove 206 and extrudes the first mounting block 17, so that the first mounting block 17 pushes the compression joint part 2 to extrude the edge of the arc-shaped clamping part 1, meanwhile, the second driving block 203 contacts with the through groove 206 and gradually pushes the moving rod 205 to move in a direction away from the electrode, the moving rod 205 drives the mounting arc plate 193 to move in the direction away from the electrode when extruding the third return spring 207, the sliding pressurizing block 192 moves in the adsorption hole 191 in the direction away from the electrode, a vacuum environment is generated in the adsorption hole 191, and the adsorption force of the vacuum environment in the adsorption hole 191 can be ensured, so that the connection between the arc-shaped clamping part 1 and the electrode is enhanced.
Referring to fig. 7-8, in the working process of the arc clamping part 1, if particles and impurities are adsorbed on the end surface close to the electrode, the clamping effect of the arc clamping part 1 is seriously affected, and meanwhile, the arc surface of the electrode is damaged, therefore, the end surface of the arc clamping part 1 needs to be maintained clean, therefore, the embodiment provides a turnover assembly 4, the side wall of the working frame 11 is fixedly provided with a rotating shaft 42, one end of the rotating shaft 42 far away from the working frame 11 is rotatably connected with a limiting slide block 43, the annular working table 3 is also provided with a limiting slide groove 44, the limiting slide groove 44 is parallel to the movement direction of the arc clamping part 1, the rotating shaft 42 is limited and supported through the cooperation of the limiting slide block 43 and the limiting slide groove 44, a rotary gear 45 is also fixed on the side wall of the rotating shaft 42, a driving rack 46 is correspondingly matched with the rotary gear 45, when the driving rack 46 is contacted with the rotating gear 45, the rotating gear 45 is rotated 180 degrees, a type frame 47 is rotatably arranged on the rotating shaft 42, a type frame is fixedly connected with an output piece 3525, the rotating block is rotatably connected with the rotating shaft 48 at the two ends of the annular groove 48, and the annular groove 48 is in a half-ring groove 48, and the half-groove 48 is rotatably arranged in the annular groove 48, and the half-groove 48 is in a state of the half-groove 48 is maintained, and the half-ring groove 48 is rotatably arranged in the annular groove 48, and the half-groove 48 is in a state of the annular groove 48; when the electrode needs to move, the arc clamping part 1 is driven by the driving piece to loosen the clamping of the electrode and move in the direction away from the electrode, namely, the type frame 47 is driven by the driving piece to move in the direction away from the electrode, meanwhile, the type frame 47 drives the rotating shaft 42 to move in the direction away from the electrode, so that the limit sliding block 43 slides in the limit sliding groove 44, and the working frame 11 is also away from the electrode, when the rotary gear 45 is in contact with the driving rack 46, the rotating shaft 42 rotates to drive the arc clamping part 1 to rotate in the direction away from the electrode, in the process, the rotary block 49 slides in the semi-ring groove 48, and at the moment, the end face of the arc clamping part 1 can be cleaned only by arranging a cleaning component in a static state on the annular workbench 3, and the cleaning component can be an adsorption component made of a hairbrush or other flexible adsorption materials.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (4)
1. The 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy comprises an arc-shaped clamping part and a driving piece, wherein the driving piece is used for driving the arc-shaped clamping part to move towards the direction close to an electrode;
the output end of the driving piece is fixedly provided with a working frame, one end of the working frame, which is close to the electrode, is provided with an opening, a supporting rod is fixedly arranged on the inner wall of the working frame, a sleeve is sleeved on the supporting rod in a sliding way, a pressure spring is connected between the sleeve and the supporting rod, and one end of the sleeve, which is close to the electrode, is fixedly connected with an arc-shaped clamping part;
a first limiting block is arranged in the working frame, an elastic pressure rod is slidably arranged in the first limiting block, and the elastic pressure rod is connected with the compression joint part;
a first mounting block is further fixed at one end, far away from the electrode, of the elastic pressure rod, and a first return spring is connected between the first mounting block and the first limiting block;
a sliding groove is formed in the inner wall of one side, far away from the electrode, of the working frame, a sliding block is slidably arranged in the sliding groove, a movable rod is rotatably connected between the sliding block and the sleeve, and when the sleeve and the supporting rod slide relatively, the sleeve forces the sliding block to slide in the sliding groove;
the sliding block is fixedly provided with a mounting rod, the mounting rod is fixedly provided with a protruding block, and when the supporting rod compresses the pressure spring, the protruding block moves towards the direction close to the elastic pressure rod;
the one end that the lug was kept away from the sleeve is the inclined plane, and it is used for gradually extrudeing elasticity pressure pole.
2. The 45MVA closed electric furnace for producing the low-phosphorus manganese silicon alloy according to claim 1, further comprising an annular workbench, wherein the annular workbench is sleeved on the electrode, the driving piece is fixedly arranged on the annular workbench, and the arc-shaped clamping part is abutted against the upper end face of the annular workbench.
3. The 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy according to claim 2, wherein a plurality of the driving members are arranged, and each of the driving members is located in a certain diameter direction of the annular table.
4. The 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy according to claim 2, wherein the initial position of the arc-shaped clamping part is positioned between the electrode and the inner side wall of the annular workbench.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310997962.8A CN116951991B (en) | 2023-08-09 | 2023-08-09 | 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310997962.8A CN116951991B (en) | 2023-08-09 | 2023-08-09 | 45MVA closed electric furnace for producing low-phosphorus manganese silicon alloy |
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| CN116951991B true CN116951991B (en) | 2024-02-06 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB520319A (en) * | 1939-01-10 | 1940-04-19 | William Harvey Payne | Clamping mechanism for electric arc furnace electrodes |
| CN114087870A (en) * | 2021-12-28 | 2022-02-25 | 无锡博众热能环保设备有限公司 | High-silicon-manganese alloy closed submerged arc furnace |
| CN217563809U (en) * | 2022-03-25 | 2022-10-11 | 中冶南方工程技术有限公司 | Electrode lengthening clamping device |
| CN218994067U (en) * | 2022-12-29 | 2023-05-09 | 宜兴市宇能冶金设备制造有限公司 | Contact element for combined gripper |
| CN219287766U (en) * | 2022-12-19 | 2023-06-30 | 申芝电梯有限公司 | Electrode column lifting mechanism of submerged arc electric furnace |
-
2023
- 2023-08-09 CN CN202310997962.8A patent/CN116951991B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB520319A (en) * | 1939-01-10 | 1940-04-19 | William Harvey Payne | Clamping mechanism for electric arc furnace electrodes |
| CN114087870A (en) * | 2021-12-28 | 2022-02-25 | 无锡博众热能环保设备有限公司 | High-silicon-manganese alloy closed submerged arc furnace |
| CN217563809U (en) * | 2022-03-25 | 2022-10-11 | 中冶南方工程技术有限公司 | Electrode lengthening clamping device |
| CN219287766U (en) * | 2022-12-19 | 2023-06-30 | 申芝电梯有限公司 | Electrode column lifting mechanism of submerged arc electric furnace |
| CN218994067U (en) * | 2022-12-29 | 2023-05-09 | 宜兴市宇能冶金设备制造有限公司 | Contact element for combined gripper |
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| CN116951991A (en) | 2023-10-27 |
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