CN102056359B - Large submerged arc furnace combined self-baking electrode device capable of removing housing and use method thereof - Google Patents
Large submerged arc furnace combined self-baking electrode device capable of removing housing and use method thereof Download PDFInfo
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- CN102056359B CN102056359B CN2010106063650A CN201010606365A CN102056359B CN 102056359 B CN102056359 B CN 102056359B CN 2010106063650 A CN2010106063650 A CN 2010106063650A CN 201010606365 A CN201010606365 A CN 201010606365A CN 102056359 B CN102056359 B CN 102056359B
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- 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
- H05B7/06—Electrodes
- H05B7/08—Electrodes non-consumable
- H05B7/085—Electrodes non-consumable mainly consisting of carbon
- H05B7/09—Self-baking electrodes, e.g. Söderberg type electrodes
Abstract
The invention relates to a large submerged arc furnace combined self-baking electrode device capable of removing a housing and a use method thereof, belonging to the technical field of discharge heating self-baking electrodes. The large submerged arc furnace combined self-baking electrode device comprises an electrode, a combined holder and the like, wherein the combined holder comprises an electrode housing and the like, the electrode penetrates through a lower, a middle and an upper electrode stripping supporting platforms from top to bottom, hydraulic cylinders are arranged between the lower and the middle electrode stripping supporting platforms and between the middle and the upper electrode stripping supporting platforms, inner cavities of the upper and the middle electrode stripping supporting platforms are provided with air bag band-type brakes, the electrode penetrates through the air bag band-type brakes, and the electrode housing is fixed with the holder. Through the matching of the air bag band-type brakes, and the hydraulic cylinders of the middle and the lower stripping supporting platforms, an electrode paste and electrode combined body is conveyed downwards into the bottom of a hearth for working and the electrode housing is immovable to ensure that the electrode housing is not consumed, thus the strength of the self-baking electrode is improved, the content of iron in the product is effectively reduced and the product quality is ensured.
Description
Technical field
The present invention relates to self-baking electrode technical field, relate to the hot stove composite type of the large ore of a kind of capacity more than 25.5MVA can shell self-baking electrode device and method for using specifically through discharge heating.
Background technology
At present, the electrode that adopts in the mine heat furnace smelting has only two kinds of self-baking electrode and prebaked electrodes (comprising carbon element and graphite).Prebaked electrode (comprising carbon element and graphite electrode) be with raw material such as low ash content anthracite, metallurgical coke according to a certain percentage with granularity at a certain temperature; After adding binding agent, pitch evenly stirred skewer, compression moulding, roasting at a certain temperature or calcining were transformed, and its cost is higher; Ten thousand yuan of about 1.5-3 per ton; Its advantage is without roasting, in the product impurity of iron bring into low, but owing to himself also have characteristics such as easily broken, expensive, that cross dimensions is limited; Cause production to be difficult to continue, cause cost to increase.
And self-baking electrode is in the electrode shell that is welded into general steel plate is packed electrode paste on hot stove top, ore deposit; Electric current joule's heat energy and the stove of utilization through electrode self radiant heat form through the fusing roasting, electrode paste in electrode shell under certain paste column pressure, roasting slowly in smelting process and conductive electrode carbon piece with certain intensity and shape; Because limit use, edge forming, limit roasting; Saved moulding and calcining process, manufacture craft is simple, and cost is relatively low; Per ton have only ten thousand yuan of 0.3-0.5; But its shortcoming is that electrode shell also incorporates in the hot stove in ore deposit thereupon in the production process, causes in the product content of iron higher, suitable the smelting the strict product of iron tramp content control.
Summary of the invention
The purpose of this invention is to provide the hot stove composite type of a kind of large ore can shell self-baking electrode device and method for using, its low cost of manufacture, the intensity that can improve self-baking electrode have reduced simultaneously that the content of iron has guaranteed product quality in the product.
In order to realize such scheme; Technical solution of the present invention is: the hot stove composite type of a kind of large ore self-baking electrode device that can shell; Comprising three electrodes, upper, middle and lower electrode pressure-off support platform, carrying cylinder and combined holder; Said combined holder is clamped by the electrode shell of tubular, several electrode shells and presses device and several contact elements are formed; The bottom of said electrode shell is welded with steel plate; Said electrode shell clamps and presses outer surface middle part and the lower end that device and contact element are centrosymmetric respectively and are distributed in electrode shell, and three said electrodes from top to bottom pass on the steel plate that is placed through behind the centre bore of upper, middle and lower electrode pressure-off support platform bottom the electrode shell successively, said electrode shell pass carrying cylinder inner chamber and and carrying cylinder between leave the gap; Zone between three said electrodes and electrode shell and the steel plate is filled with electrode paste; Said electrode and said electrode paste tight burning become self-baking electrode together, and applicator platform is controlled in the upper surface welding of said carrying cylinder, and the said applicator platform of controlling is lifted on below two big hydraulic cylinders that are fixed on the civil engineering girder steel platform; The said applicator platform of controlling is through several upright supports bottom electrode pressure-off support platforms on it; Said bottom electrode pressure-off support platform upper surface is provided with several first hydraulic cylinders, electrode pressure-off support platform during the upper end of said first hydraulic cylinder is supported, and the upper surface of said middle electrode pressure-off support platform is provided with several second hydraulic cylinders; Top electrode pressure-off support platform is supported in the upper end of said second hydraulic cylinder; Saidly go up, the centre bore inner chamber of middle electrode pressure-off support platform is separately installed with three first and second air bag band-type brakes, three said electrodes are the centre bore through three said first and second air bag band-type brakes respectively, said electrode shell with control applicator platform and press device through the electrode shell clamping and be fixedly connected.
The hot stove composite type of the large ore of the present invention self-baking electrode device that can shell, wherein said electrode shell adopts the thick ferritic stainless steel material of δ 6mm-δ 10mm, said electrodes use carbon pole.
The hot stove composite type of the large ore of the present invention self-baking electrode device that can shell; The inner surface of wherein said electrode shell is provided with the stainless reinforcing bar sheet of a circle and electrode shell parallel axes; The outer surface of said electrode shell is provided with several T font gussets; The lower end of said combined holder be provided with some to the corresponding contact element of said T font gusset quantity, the said every pair of contact element clamps a T font gusset.
The hot stove composite type of the large ore of the present invention self-baking electrode device that can shell leaves the gap of 20mm-30mm between the outer surface of wherein said electrode shell and the inner chamber of carrying cylinder.
The hot stove composite type of the large ore of the present invention self-baking electrode device that can shell; Wherein three said electrodes are centrosymmetric and are distributed in the inner chamber of electrode shell; The axis of said electrode and the parallel axes of electrode shell; The outer surface of three said electrodes is equipped with screw thread, and the two ends of three said electrodes are respectively equipped with internal thread and special joint.
Can the shell method for using of self-baking electrode device of the hot stove composite type of a kind of large ore, it comprises the steps:
(1) when self-baking electrode during in operate as normal; Be arranged in, first and second air bag band-type brake of electrode pressure-off support platform centre bore all is in the clamping electrode state, 3 first hydraulic cylinders that are arranged on the bottom electrode pressure-off support platform all are in contraction state with 3 second hydraulic cylinders that are positioned on the electrode pressure-off support platform;
(2) begin to shell when pressing self-baking electrode; Three first air bag band-type brakes of top electrode pressure-off support platform centre bore are unclamped electrode, after delaying time then 2 seconds, stop after being arranged in several second hydraulic cylinder risings 300mm of electrode pressure-off support platform; Top electrode pressure-off this moment support platform rising 300mm; With the first air bag band-type brake clamping electrode of top electrode pressure-off support platform, after delaying time then 5 seconds, the second air bag band-type brake that will be arranged in electrode pressure-off support platform unclamps electrode; Delay time after 2 seconds; Stop behind several first hydraulic cylinder risings 300mm with bottom electrode pressure-off support platform, this moment, top electrode pressure-off support platform and the middle electrode pressure-off support platform 300mm that rises simultaneously stopped after then several second hydraulic cylinders of middle electrode pressure-off support platform being regained 300mm; Three second air bag band-type brake clamping electrodes of middle electrode pressure-off support platform, the vertical motion that this moment, electrode pressed is accomplished;
Several first hydraulic cylinders that (3) then will be positioned at bottom electrode pressure-off support platform move downwards, and in the drive, stop behind top electrode pressure-off support platform and the electrode decline 20mm, the action that once presses of electrode is accomplished;
(4) repeating above-mentioned steps (3), is decline 300mm until the total kilometres of first hydraulic cylinder that is positioned at bottom electrode pressure-off support platform;
(5) beginning new is taken turns electrode and is pressed, and the above-mentioned steps that promptly circulates (1) is to step (4).
Can the shell method for using of self-baking electrode device of the hot stove composite type of a kind of large ore, it comprises the steps:
(1) when the self-baking electrode operate as normal; Be arranged in, three first and second air bag band-type brakes of electrode pressure-off support platform centre bore all are in the clamping electrode state, 3 first hydraulic cylinders that are arranged on the bottom electrode pressure-off support platform all are in contraction state with 3 second hydraulic cylinders that are positioned on the electrode pressure-off support platform;
(2) unclamp 3 first air bag band-type brakes of top electrode pressure-off support platform centre bore; Hold the first air bag band-type brake behind the second hydraulic cylinder rising 300mm that is arranged in electrode pressure-off support platform tightly electrode; Top electrode pressure-off this moment support platform rising 300mm then unclamps the second air bag band-type brake that is arranged in electrode pressure-off support platform, makes second hydraulic cylinder that is arranged in electrode pressure-off support platform press down 20mm; Top electrode pressure-off this moment support platform decline 20mm, the action that once presses of electrode is accomplished;
(3) repeat above-mentioned steps (2), up to the second hydraulic cylinder decline 300mm stroke that is arranged in electrode pressure-off support platform, i.e. top electrode pressure-off support platform decline 300mm;
(4) beginning new is taken turns electrode and is pressed, and promptly repeats above-mentioned action (1) to step (3).
After adopting such scheme; The hulling device of the hot stove composite type of large ore of the present invention self-baking electrode and method for using clamp through first and second air bag band-type brake, electrode shell and press device, be arranged in second hydraulic cylinder on the electrode pressure-off support platform and be positioned at the cooperation of first hydraulic cylinder on the bottom electrode pressure-off support platform; Electrode paste and the electrode assembly that sinters electrode shell inside into self-baking electrode presses downwards together to be sent into the furnace shell bottom and carries out roasting; And that electrode shell keeps always is motionless, realizes the automatic shelling of electrode shell and electrode and electrode paste, electrode shell is not consumed or very small amount consumption; Thereby reach the purpose of iron content in the control product; This device has improved the intensity of self-baking electrode, effectively reduces the content of iron in the product, has guaranteed product quality.
Description of drawings
Fig. 1 is the structural representation of the hulling device of the hot stove composite type of large ore of the present invention self-baking electrode;
Fig. 2 is the structure enlarged diagram of the A of Fig. 1 to electrode and last support platform;
Fig. 3 is that the electrode shell and the electrode shell of the hulling device of the hot stove composite type of large ore of the present invention self-baking electrode clamps the structure schematic top plan view that presses device;
Fig. 4 is the local B enlarged diagram of Fig. 3.
Embodiment
The hot stove composite type of the large ore of the present invention as shown in Figure 1 self-baking electrode device that can shell comprises three carbon poles 2, top electrode pressure-off support platform 4, middle electrode pressure-off support platform 5, bottom electrode pressure-off support platform 6, carrying cylinder 7 and combined holder 8;
Combined holder 8 presses device 16 by 1,6 electrode shells clampings of tubular electrode shell and 12 pairs of contact elements 18 are formed; Electrode shell 1 is a tubular; Electrode shell 1 adopts the thick good ferritic stainless steel material of conductive heat-resistant performance of δ 6mm-δ 10mm, and this kind material thermal coefficient of expansion is little, and the present invention has abandoned the most ordinary carbon steels that adopt of existing electrode shell; Electrode shell 1 has stronger antioxygenic property and resistance to elevated temperatures among the present invention; Reduced the ferrous material consumption simultaneously, improved product quality, the bottom of electrode shell 1 is welded with steel plate;
In conjunction with shown in Figure 2; Three electrodes 2 are centrosymmetric and are distributed in the cylindrical cavity of electrode shell 1, and electrode shell 1 intracavity diameter is 620mm, the parallel axes of the axis of electrode 2 and electrode shell 1; The diameter of three electrodes is 300mm; Three electrodes 2 are placed through on the steel plate of electrode shell 1 bottom after passing the centre bore of top electrode pressure-off support platform 4, middle electrode pressure-off support platform 5, bottom electrode pressure-off support platform 6 from top to bottom successively, and the zone between three electrodes 2 and the electrode shell 1 is filled with electrode paste, and the outer surface of three electrodes 2 is equipped with the screw thread (not shown); To connect intensity, contact area and conductive effect in increase and the electrode paste; The two ends of three carbon poles 2 are respectively equipped with internal thread and special joint so that make next root electrode 2 of electrode 2 continued access in use, electrode shell 1 pass carrying cylinder 7 inner chamber and and carrying cylinder 7 between leave the gap of 20mm-30mm; The effect of carrying cylinder 7 is that electrode shell 1 is placed on wherein, and plays the effect of carbon pole 2 vertically-guideds.Because of electrode shell 1 is charged, can not contacts with carrying cylinder 7, and relative motion will be arranged between the two, so leave the gap of 20mm-30mm; Applicator platform 10 is controlled in the upper surface welding of carrying cylinder 7; Controlling applicator platform 10 is lifted on below two big hydraulic cylinders 30 that are fixed on the civil engineering girder steel platform; Control applicator platform 10 and support bottom electrode pressure-off support platform 6 through several columns 11 on it; Bottom electrode pressure-off support platform 6 upper surfaces are provided with several first hydraulic cylinders 12; Electrode pressure-off support platform 5 during the upper end of first hydraulic cylinder 12 is supported; The upper surface of middle electrode pressure-off support platform 5 is provided with several second hydraulic cylinders 13; Top electrode pressure-off support platform 4 is supported in the upper end of second hydraulic cylinder 13; The centre bore inner chamber of top electrode pressure-off support platform 4 and middle electrode pressure-off support platform 5 is separately installed with three first air bag band- type brakes 14 and 15, three carbon poles 2 of the second air bag band-type brake respectively through the centre bore of three the first air bag band-type brakes 14 on top electrode pressure-off support platform 4 and the middle electrode pressure-off support platform 5 and the second air bag band-type brake 15, and electrode shell 1 clamps to press device 16 (being existing apparatus) and control applicator platform 10 through electrode shell and is fixed together.
In conjunction with Fig. 3 and shown in Figure 4, the inner surface of electrode shell 1 is provided with the stainless reinforcing bar sheet (not shown) of a circle and electrode shell 1 parallel axes, and the outer surface of electrode shell 1 is provided with 12 T font gussets 17; Electrode shell clamps and to press device 16 and be centrosymmetric and be distributed in the middle part of electrode shell 1 outer surface, and every pair of T font gusset 17 that clamps electrode shell 1 outer surface in the 12 pairs of contact elements 18, during use; Through clamping each to contact element 18 with special-purpose charged folder; Make contact element 18 give T font gusset 17, pass to electrode shell 1 through T font gusset 17 conductions again, pass to by carbon pole 2 by electrode shell 1 conduction at last current delivery; The steel plate of electrode shell 1 bottom melts gradually during beginning; Electrode 2 and electrode paste together roasting become self-baking electrode 3, and this structure has replaced existing brasses and band-type brake as electric action fully, and this structure and existing brasses and band-type brake structure are relatively; Have simple in structure, in light weight; Can be used for the electric furnace of different electrodes, the scope of application is wide; Because simple in structure, thereby reduced the factory building absolute altitude; Because conducting system also can use the short net of water-cooled cable and tubular type, and contact is good, so power savings is obvious.
Can the shell method for using of self-baking electrode device of the hot stove composite type of this large ore comprises the steps:
(1) when self-baking electrode during in operate as normal; Three first air bag band-type brakes 14 that are arranged in top electrode pressure-off support platform 4 and electrode pressure-off support platform 5 centre bores all are in clamping carbon pole 2 states with the second air bag band-type brake 15, are arranged in 3 first hydraulic cylinders 12 on the bottom electrode pressure-off support platform 6 and 3 second hydraulic cylinders 13 that are positioned on the electrode pressure-off support platform 5 and all are in contraction state;
(2) begin to shell when pressing self-baking electrode; Three first air bag band-type brakes 14 of top electrode pressure-off support platform 4 centre bores are unclamped carbon pole 2, after delaying time then 2 seconds, stop after being arranged in several second hydraulic cylinders 13 rising 300mm of electrode pressure-off support platform 5; Top electrode pressure-off this moment support platform 4 rising 300mm; The first air bag band-type brake 14 of top electrode pressure-off support platform 4 is clamped carbon pole 2, and after delaying time then 5 seconds, the second air bag band-type brake 15 that will be arranged in electrode pressure-off support platform 5 unclamps carbon pole 2; Delay time after 2 seconds; Stop behind several first hydraulic cylinders 12 rising 300mm with bottom electrode pressure-off support platform 6, top electrode pressure-off this moment support platform 4 and middle electrode pressure-off support platform 5 300mm that rises simultaneously stops after then several second hydraulic cylinders 13 of middle electrode pressure-off support platform 5 being regained 300mm; Three the second air bag band-type brakes 15 of middle electrode pressure-off support platform 5 clamp carbon poles 2, and the vertical motion that this moment, carbon pole 2 pressed is accomplished;
Several first hydraulic cylinders 12 that (3) then will be positioned at bottom electrode pressure-off support platform 6 move downwards; Electrode pressure-off support platform 5, top electrode pressure-off support platform 4 and carbon pole 2 together descend and stop behind the 20mm in the drive, and the action that once presses of carbon pole 2 is accomplished;
(4) repeating above-mentioned steps (3), is decline 300mm until the total kilometres of first hydraulic cylinder 12 that is positioned at bottom electrode pressure-off support platform 6;
(5) beginning new is taken turns electrode and is pressed, and the above-mentioned steps that promptly circulates (1) is to step (4).
If also can adopt the better simply program of pressing to press (lower platform is failure to actuate, and only presses with upper mounting plate) when the frictional force of carbon pole 2 and electrode shell 1 is not very big in actual production process, its program is following:
(1) when the self-baking electrode operate as normal; Three first air bag band-type brakes 14 that are arranged in top electrode pressure-off support platform 4 and electrode pressure-off support platform 5 centre bores all are in clamping carbon pole 2 states with the second air bag band-type brake 15, are arranged in 3 first hydraulic cylinders 12 on the bottom electrode pressure-off support platform 6 and 13 ones of 3 second hydraulic cylinders that are positioned on the electrode pressure-off support platform 5 and are in contraction state;
(2) unclamp 3 first air bag band-type brakes 14 of top electrode pressure-off support platform 4 centre bores; Making the first air bag band-type brake 14 hold carbon pole 2 tightly behind second hydraulic cylinder, the 13 rising 300mm that are arranged in electrode pressure-off support platform 5; Top electrode pressure-off this moment support platform 4 rising 300mm; Then unclamp the second air bag band-type brake 15 that is arranged in electrode pressure-off support platform 5; Make second hydraulic cylinder 13 that is arranged in electrode pressure-off support platform 5 press down 20mm, top electrode pressure-off this moment support platform 4 decline 20mm, the action that once presses of electrode is accomplished;
(3) repeat above-mentioned steps (2), up to second hydraulic cylinder, the 13 decline 300mm strokes that are arranged in electrode pressure-off support platform 5, i.e. top electrode pressure-off support platform 4 decline 300mm;
(4) beginning new is taken turns electrode and is pressed, and promptly repeats above-mentioned action (1) to step (3).
The present invention in use; Clamp through the first air bag band-type brake 14, the second air bag band-type brake 15, electrode shell and to press device 16, be arranged in second hydraulic cylinder 13 on the electrode pressure-off support platform 5 and be positioned at the cooperation of first hydraulic cylinder 12 on the bottom electrode pressure-off support platform 6; The assembly that sinters electrode shell 1 inside electrode paste and the carbon pole 2 of self-baking electrode into presses downwards together to be sent into furnace shell 9 bottoms and carries out work; And that electrode shell 1 keeps always is motionless, realizes the automatic shelling of electrode shell 1 and carbon pole 2 and electrode paste, electrode shell 1 is not consumed or very small amount consumption; Thereby reach the purpose of iron content in the control product; This device has improved the intensity of self-baking 1 utmost point 3, effectively reduces the content of iron in the product, has guaranteed product quality.
The above embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection range of claims of the present invention.
Claims (7)
1. the hot stove composite type of large ore self-baking electrode device that can shell; It is characterized in that: comprise three electrodes (2), upper, middle and lower electrode pressure-off support platform (4; 5; 6), carrying cylinder (7) and combined holder (8); Said combined holder (8) is clamped by the electrode shell (1) of tubular, several electrode shells and presses device (16) and several contact elements (18) are formed; The bottom of said electrode shell (1) is welded with steel plate, and said electrode shell clamps and presses outer surface middle part and the lower end that device (16) and contact element (18) are centrosymmetric respectively and are distributed in electrode shell (1), and three said electrodes (2) pass upper, middle and lower electrode pressure-off support platform (4 from top to bottom successively; 5; 6) be placed through behind the centre bore on the steel plate of electrode shell (1) bottom, said electrode shell (1) pass carrying cylinder (7) inner chamber and and carrying cylinder (7) between leave the gap, the zone between three said electrodes (2) and electrode shell (1) and the steel plate is filled with electrode paste; Said electrode (2) becomes self-baking electrode (3) with said electrode paste tight burning together; Applicator platform (10) is controlled in the upper surface welding of said carrying cylinder (7), and the said applicator platform (10) of controlling is lifted on below two big hydraulic cylinders (30) that are fixed on the civil engineering girder steel platform, and the said applicator platform (10) of controlling supports bottom electrode pressure-off support platform (6) through several columns (11) on it; Said bottom electrode pressure-off support platform (6) upper surface is provided with several first hydraulic cylinders (12); Electrode pressure-off support platform (5) during the upper end of said first hydraulic cylinder (12) is supported, the upper surface of said middle electrode pressure-off support platform (5) is provided with several second hydraulic cylinders (13), and top electrode pressure-off support platform (4) is supported in the upper end of said second hydraulic cylinder (13); Said last, middle electrode pressure-off support platform (4; 5) centre bore inner chamber is separately installed with three first air bag band-type brakes (14) and three second air bag band-type brakes (15), and three said electrodes (2) are the centre bore through three said first air bag band-type brakes (14) and the centre bore of three second air bag band-type brakes (15) respectively, said electrode shell (1) with control applicator platform (10) and press device (16) through the electrode shell clamping and be fixedly connected.
2. the hot stove composite type of the large ore as claimed in claim 1 self-baking electrode device that can shell is characterized in that: said electrode shell (1) adopts the thick ferritic stainless steel material of δ 6mm-δ 10mm, and said electrode (2) adopts carbon pole.
3. according to claim 1 or claim 2 the hot stove composite type of the large ore self-baking electrode device that can shell; It is characterized in that: the inner surface of said electrode shell (1) is provided with the stainless reinforcing bar sheet of a circle and electrode shell (1) parallel axes; The outer surface of said electrode shell (1) is provided with several T font gussets (17); The lower end of said combined holder (8) is provided with some to the contact element (18) corresponding with said T font gusset (17) quantity, and said every pair of contact element (18) clamps a T font gusset (17).
4. the hot stove composite type of the large ore as claimed in claim 3 self-baking electrode device that can shell is characterized in that: the gap of leaving 20mm-30mm between the inner chamber of the outer surface of said electrode shell (1) and carrying cylinder (7).
5. the hot stove composite type of the large ore as claimed in claim 4 self-baking electrode device that can shell; It is characterized in that: three said electrodes (2) are centrosymmetric and are distributed in the inner chamber of electrode shell (1); The parallel axes of the axis of said electrode (2) and electrode shell (1); The outer surface of three said electrodes (2) is equipped with screw thread, and the two ends of three said electrodes (2) are respectively equipped with internal thread and special joint.
6. like can the shell method for using of self-baking electrode device of the hot stove composite type of the described large ore of one of claim 1-5, it is characterized in that: comprise the steps:
(1) when self-baking electrode during in operate as normal; Be arranged in, first and second air bag band-type brake of electrode pressure-off support platform centre bore all is in the clamping electrode state, 3 first hydraulic cylinders that are arranged on the bottom electrode pressure-off support platform all are in contraction state with 3 second hydraulic cylinders that are positioned on the electrode pressure-off support platform;
(2) begin to shell when pressing self-baking electrode; Three first air bag band-type brakes of top electrode pressure-off support platform centre bore are unclamped electrode, after delaying time then 2 seconds, stop after being arranged in several second hydraulic cylinder risings 300mm of electrode pressure-off support platform; Top electrode pressure-off this moment support platform rising 300mm; With the first air bag band-type brake clamping electrode of top electrode pressure-off support platform, after delaying time then 5 seconds, the second air bag band-type brake that will be arranged in electrode pressure-off support platform unclamps electrode; Delay time after 2 seconds; Stop behind several first hydraulic cylinder risings 300mm with bottom electrode pressure-off support platform, this moment, top electrode pressure-off support platform and the middle electrode pressure-off support platform 300mm that rises simultaneously stopped after then several second hydraulic cylinders of middle electrode pressure-off support platform being regained 300mm; Three second air bag band-type brake clamping electrodes of middle electrode pressure-off support platform, the vertical motion that this moment, electrode pressed is accomplished;
Several first hydraulic cylinders that (3) then will be positioned at bottom electrode pressure-off support platform move downwards, and in the drive, stop behind top electrode pressure-off support platform and the electrode decline 20mm, the action that once presses of electrode is accomplished;
(4) repeating above-mentioned steps (3), is decline 300mm until the total kilometres of first hydraulic cylinder that is positioned at bottom electrode pressure-off support platform;
(5) beginning new is taken turns electrode and is pressed, and the above-mentioned steps that promptly circulates (1) is to step (4).
7. like can the shell method for using of self-baking electrode device of the hot stove composite type of the described large ore of one of claim 1-5, it is characterized in that: comprise the steps:
(1) when the self-baking electrode operate as normal; Be arranged in, three first and second air bag band-type brakes of electrode pressure-off support platform centre bore all are in the clamping electrode state, 3 first hydraulic cylinders that are arranged on the bottom electrode pressure-off support platform all are in contraction state with 3 second hydraulic cylinders that are positioned on the electrode pressure-off support platform;
(2) unclamp 3 first air bag band-type brakes of top electrode pressure-off support platform centre bore; Hold the first air bag band-type brake behind the second hydraulic cylinder rising 300mm that is arranged in electrode pressure-off support platform tightly electrode; Top electrode pressure-off this moment support platform rising 300mm then unclamps the second air bag band-type brake that is arranged in electrode pressure-off support platform, makes second hydraulic cylinder that is arranged in electrode pressure-off support platform press down 20mm; Top electrode pressure-off this moment support platform decline 20mm, the action that once presses of electrode is accomplished;
(3) repeat above-mentioned steps (2), up to the second hydraulic cylinder decline 300mm stroke that is arranged in electrode pressure-off support platform, i.e. top electrode pressure-off support platform decline 300mm;
(4) beginning new is taken turns electrode and is pressed, and promptly repeats above-mentioned action (1) to step (3).
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| CN102724778A (en) * | 2012-06-20 | 2012-10-10 | 柳州市金螺机械有限责任公司 | Electrode clamping device for electric arc furnace |
| CN106658809B (en) * | 2016-12-30 | 2020-06-05 | 中冶南方工程技术有限公司 | Automatic pressure discharge control method for self-baking electrode of submerged arc furnace |
| CN108571890A (en) * | 2018-04-18 | 2018-09-25 | 重庆市赛特刚玉有限公司 | Self-baking electrode topples over furnace structure for Brown Alundum |
| CN116678212B (en) * | 2023-06-06 | 2023-11-28 | 兴和县山河特钢有限公司 | 30MVA closed electric furnace device for manganese silicide alloy production |
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| US4722684A (en) * | 1985-08-22 | 1988-02-02 | Elkem A/S | Arrangement for suspension of a baking furnace for electrodes |
| CN201359441Y (en) * | 2008-12-30 | 2009-12-09 | 中国恩菲工程技术有限公司 | Electrode device |
| CN101674688A (en) * | 2009-10-21 | 2010-03-17 | 洛阳龙羽圣扬投资有限公司 | Composite self-baking electrode used for large silicon metal furnace and manufacturing process thereof |
| CN201904937U (en) * | 2010-12-24 | 2011-07-20 | 登封电厂集团铝合金有限公司 | Combined electrode self-baking device capable of unshelling for large submerged arc furnace |
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