CN101990327A - Electrode shell of large submerged arc furnace - Google Patents
Electrode shell of large submerged arc furnace Download PDFInfo
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- CN101990327A CN101990327A CN2009100903619A CN200910090361A CN101990327A CN 101990327 A CN101990327 A CN 101990327A CN 2009100903619 A CN2009100903619 A CN 2009100903619A CN 200910090361 A CN200910090361 A CN 200910090361A CN 101990327 A CN101990327 A CN 101990327A
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Abstract
The invention relates to an electrode shell of a large submerged arc furnace. The electrode shell comprises cylindrical sections which are sequentially connected, wherein each cylindrical section comprises a cylindrical shell; a plurality of fins which are arranged at equal intervals are arranged in the longitudinal direction of the inner side of the shell, each fin is formed by superposing and fixing two steel plates, a plurality of circular holes the diameters of which are 20mm are arranged between the two steel plates, a branch is arranged at the upper end of each of the two steel plates, and the branch is connected with the lower end of the fin of the cylindrical section at the upper end of the cylindrical section on which the branch is positioned; and fixing rings are respectively fixed inside the upper end and lower end of the shell, and a connecting ring is fixed outside the fixing ring between two adjacent cylindrical sections. In the electrode shell of the large submerged arc furnace provided by the invention, because the upper electrode fins and the lower electrode fins can be connected mutually, the splicing verticality is good. In the electrode shell of the large submerged arc furnace provided by the invention, the internal connection strength, the contact area and the conductive effect which are between the electrode shell and an electrode paste are increased through the plurality of circular holes between the two steel plates of each fin, thus the quantity and width of the fins can be reduced, the consumption of ferrous materials can be reduced, and the pollution on products caused by impurities is lowered in the using process.
Description
Technical field
The present invention relates to a kind of electrode shell, particularly a kind of large ore soaking furnace electrode shell.
Background technology
Electrode be in the electric furnace smelting as the material of conductor, under the situation of low-voltage, big electric current, work usually, therefore good electrical conductivity to be arranged.Material as electrode must have high melt point, otherwise can very fast fusing, influences carrying out smoothly of ordinary production.Carbonaceous material is ideal electrode material, and the electrode that electric furnace uses has three kinds, i.e. carbon pole, graphite electrode and self-baking electrode.Carbon pole is with low-ash anthracite, carbon materialses such as metallurgical coke according to a certain percentage with granularity at a certain temperature, add that binding agent, pitch evenly stir, compression moulding, and then 1300 ℃ of roastings form; Graphite electrode is that carbon pole is calcined under 2000-2500 ℃ of high temperature and is transformed; Self-baking electrode is in the electrode shell that is welded into steel plate is packed electrode paste on electric furnace top, utilizes by the electric current joule's heat energy of electrode self and the radiant heat of stove to form through the fusing roasting.Electrode shell is the shell mould of the definite shape of making for electrode moulding, and electrode paste is under paste column pressure certain in electrode shell, roasting slowly in smelting process and conductive electrode charcoal piece with certain intensity and shape; Because moulding and calcining process have been saved in limit use, edge forming, limit roasting, manufacture craft is simple, and is cheap, is widely used in smelting the hot stove of gold mine.
At present, existing self-baking electrode electrode shell (Fig. 1) often adopts the 2-3mm steel plate, and it is high 1.5 meters to roll into cylinder, interior welds 250-350mm muscle sheet 8-12 sheet, and muscle sheet upper punch has circular port (Fig. 2) or rectangular opening (Fig. 3).The manufacture method of above-mentioned electrode shell is sheet metal to be welded into suitable for reading more bigger than lower port diameter, causes a joint shell just to insert the connected mode of next joint shell (the about 20mm of internal diameter), with electrode shell firm welding and polishing on every side.Lower rib does not have connection can't connect yet on the electrode shell.This structure electrode shell shortcoming mainly contains: 1. the muscle sheet is many, and upper/lower electrode muscle sheet can't be connected to each other, and causes the continued access perpendicularity poor, moves relative rate of failure height; 2. the muscle sheet is many, and the ferrous material that electrode shell uses is many, and cost is high relatively; 3. ferrous material is many, and it is many that electrode itself is brought in the product composition of iron into, is not suitable for smelting to the strict product of iron tramp content control.
Summary of the invention
For addressing the above problem, the invention provides the few large ore soaking furnace electrode shell of ferrous material that a kind of continued access perpendicularity is good, electrode shell uses.
Large ore soaking furnace electrode shell of the present invention, comprise the shell ring that links to each other successively, shell ring comprises the housing of tubular, the inboard of described housing vertically is provided with the muscle sheet of some equidistant placement, wherein: described muscle sheet fixedly forms by two steel plates are folded mutually, be provided with some circular ports between two steel plates, the upper end of two steel plates is provided with fork, and described fork links to each other with the muscle sheet lower end of the shell ring of its shell ring upper end, place; The inboard, two ends up and down of described housing is fixed with retainer ring respectively, and the described retainer ring outside between adjacent two shell rings is fixed with connecting ring.
Large ore soaking furnace electrode shell of the present invention, wherein: the inboard of described housing is provided with the muscle sheet of four equidistant placement.
Large ore soaking furnace electrode shell of the present invention, wherein: the material of described housing is the deoxidation low carbon steel plate.
Large ore soaking furnace electrode shell of the present invention, wherein: the thickness of described housing is 3mm.
Large ore soaking furnace electrode shell of the present invention can be connected to each other owing to upper/lower electrode muscle sheet, so the continued access perpendicularity is good.Large ore soaking furnace electrode shell of the present invention by the some circular ports between two steel plates of described muscle sheet increased between electrode shell and the electrode paste in connect intensity, contact area and conductive effect, therefore can reduce the quantity and the width of muscle sheet, reduce the ferrous material consumption.Because the muscle sheet easily forms crackle or vestibule behind the electrode sintering, reduce the muscle sheet and also just reduced crackle or the vestibule that sinters in the electrode, the good integrity of electrode, thus the ability that electrode bears electric current increased, and in use reduced contaminating impurity to product.
Description of drawings
Fig. 1 is the schematic cross-section of existing self-baking electrode electrode shell;
Fig. 2 is the muscle sheet schematic diagram of existing self-baking electrode electrode shell band circular port;
Fig. 3 is the muscle sheet schematic diagram of existing self-baking electrode electrode shell band rectangular opening;
Fig. 4 is that the master of large ore soaking furnace electrode shell of the present invention looks cutaway view;
Fig. 5 is the vertical view of Fig. 4.
Embodiment
Below in conjunction with Figure of description large ore soaking furnace electrode shell of the present invention is described further.
Referring to Fig. 4, Fig. 5, large ore soaking furnace electrode shell of the present invention comprises the shell ring that links to each other successively, and shell ring comprises the housing 1 of tubular, and housing 1 is the deoxidation low carbon steel plate of thickness 3mm, and the diameter of housing 1 is 1.4 meters.The inboard of housing 1 vertically is provided with the muscle sheet 3 of four equidistant placement, muscle sheet 3 is connect by the stitch welding of two steel plate phases and forms, be provided with the circular port 4 of some diameter 20mm between two steel plates, circular port increased between electrode shell and the electrode paste in connect intensity, contact area and conductive effect; The upper end of two steel plates is provided with fork, and fork welds together with muscle sheet 3 lower ends of the shell ring of its shell ring upper end, place; The inboard, two ends up and down of housing 1 is welded with retainer ring 2 respectively, and retainer ring 2 outsides between adjacent two shell rings are welded with connecting ring 5, and connecting ring 5 can seal two slits between the shell ring.
Electrode shell welding is all adopted good welding rod with being connected on the hot stove of large ore, and welding rod will be in drying oven 120-180 ℃ dry 1 hour at least.
Above embodiment is described 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 (4)
1. large ore soaking furnace electrode shell, comprise the shell ring that links to each other successively, shell ring comprises the housing (1) of tubular, the inboard of described housing (1) vertically is provided with the muscle sheet (3) of some equidistant placement, it is characterized in that: described muscle sheet (3) fixedly forms by two steel plates are folded mutually, be provided with some circular ports (4) between two steel plates, the upper end of two steel plates is provided with fork, and described fork links to each other with muscle sheet (3) lower end of the shell ring of its shell ring upper end, place; The inboard, two ends up and down of described housing (1) is fixed with retainer ring (2) respectively, and described retainer ring (2) outside between adjacent two shell rings is fixed with connecting ring (5).
2. large ore soaking furnace electrode shell according to claim 1 is characterized in that: the inboard of described housing (1) is provided with four muscle sheets (3).
3. large ore soaking furnace electrode shell according to claim 2 is characterized in that: the material of described housing (1) is the deoxidation low carbon steel plate.
4. large ore soaking furnace electrode shell according to claim 3 is characterized in that: the thickness of described housing (1) is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100903619A CN101990327B (en) | 2009-08-06 | 2009-08-06 | Electrode shell of large submerged arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100903619A CN101990327B (en) | 2009-08-06 | 2009-08-06 | Electrode shell of large submerged arc furnace |
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| Publication Number | Publication Date |
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| CN101990327A true CN101990327A (en) | 2011-03-23 |
| CN101990327B CN101990327B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100903619A Active CN101990327B (en) | 2009-08-06 | 2009-08-06 | Electrode shell of large submerged arc furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024958A (en) * | 2013-01-07 | 2013-04-03 | 中国天辰工程有限公司 | Electrode shell for large-sized calcium carbide furnaces and manufacturing method thereof |
| CN104748574A (en) * | 2013-12-27 | 2015-07-01 | 北京思能达节能电气股份有限公司 | System and method for monitoring baking state of self-baking electrode |
| CN110343871A (en) * | 2019-08-21 | 2019-10-18 | 云南锡业股份有限公司铜业分公司 | With the method for self-baking graphite electrode replacement Copper making sedimentation furnace prebake graphite electrode |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033523C (en) * | 1993-09-11 | 1996-12-11 | 张铁铮 | Technology for producing low-iron silicon-aluminium alloy and self-baking electrode |
| CN2217863Y (en) * | 1994-12-07 | 1996-01-17 | 本溪冶金高等专科学校 | Self-baked electrode without soft or hard brokenness |
| CN2553585Y (en) * | 2002-04-09 | 2003-05-28 | 吴旺河 | Graphite soderberg electrode casing |
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2009
- 2009-08-06 CN CN2009100903619A patent/CN101990327B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024958A (en) * | 2013-01-07 | 2013-04-03 | 中国天辰工程有限公司 | Electrode shell for large-sized calcium carbide furnaces and manufacturing method thereof |
| CN103024958B (en) * | 2013-01-07 | 2015-10-28 | 中国天辰工程有限公司 | For the electrode shell manufacture method of large-scale furnace of calcium carbide |
| CN104748574A (en) * | 2013-12-27 | 2015-07-01 | 北京思能达节能电气股份有限公司 | System and method for monitoring baking state of self-baking electrode |
| CN110343871A (en) * | 2019-08-21 | 2019-10-18 | 云南锡业股份有限公司铜业分公司 | With the method for self-baking graphite electrode replacement Copper making sedimentation furnace prebake graphite electrode |
| CN110343871B (en) * | 2019-08-21 | 2021-04-30 | 云南锡业股份有限公司铜业分公司 | Method for replacing pre-baked graphite electrode of copper smelting settling furnace with self-baked graphite electrode |
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| Publication number | Publication date |
|---|---|
| CN101990327B (en) | 2012-08-22 |
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