CN109099703B - DC arc furnace without bottom electrode - Google Patents
DC arc furnace without bottom electrode Download PDFInfo
- Publication number
- CN109099703B CN109099703B CN201810958968.3A CN201810958968A CN109099703B CN 109099703 B CN109099703 B CN 109099703B CN 201810958968 A CN201810958968 A CN 201810958968A CN 109099703 B CN109099703 B CN 109099703B
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- CN
- China
- Prior art keywords
- electrode
- pipe
- furnace body
- furnace
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001816 cooling Methods 0.000 claims abstract description 48
- 239000002893 slag Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 239000002351 wastewater Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/20—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/24—Cooling arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to the technical field of electric arc furnaces, in particular to a bottom electrode-free direct current electric arc furnace, which comprises a furnace body and a furnace cover, wherein the furnace cover is arranged at the top of the furnace body, a furnace shell is sleeved outside the furnace body, slag outlets and discharge outlets are respectively arranged on two sides of the bottom of the furnace body, a feeding hole is arranged on one side of the furnace cover, an electrode jack is arranged in the middle of the furnace cover, a vertically arranged electrode is inserted in the electrode jack, a cover plate is arranged on the top of the electrode jack, a through hole which is connected with the electrode in a matched manner is arranged in the middle of the cover plate, two cooling rings are sequentially sleeved outside the electrode, and the two cooling rings are positioned above the cover plate. The invention is convenient for downwards adjusting the position of the electrode with loss after being used for a period of time, can perform cooling treatment on the electrode positioned outside the furnace body to a certain extent, ensures that the electrode can work normally, and is convenient for practical use.
Description
Technical Field
The invention relates to the technical field of arc furnaces, in particular to a bottom electrode-free direct current arc furnace.
Background
A dc arc furnace refers to an arc furnace that uses dc power as an energy source. It is the same as AC arc furnace, and uses the arc generated between electrode and furnace burden to generate heat, so as to attain the goal of smelting. While the arc of a direct-heated electric arc furnace occurs between the dedicated electrode rod and the charge being melted, which is directly subjected to the arc heat. The alloy is mainly used for steelmaking and is also used for smelting iron, copper, refractory materials and the like. The structure of the existing direct current arc furnace is generally single, the position of the electrode cannot be conveniently adjusted according to the use condition, and the electrode cannot be cooled, so that the actual use requirement cannot be met.
Disclosure of Invention
The invention aims to solve the defects that the structure is single and the actual use requirement cannot be met in the prior art, and provides a bottom electrode-free direct current arc furnace.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the design of the bottomless electrode direct current arc furnace comprises a furnace body and a furnace cover, wherein the furnace cover is arranged at the top of the furnace body, a furnace shell is sleeved outside the furnace body, slag holes and discharge holes are respectively arranged at two sides of the bottom of the furnace body, a feeding hole is arranged at one side of the furnace cover, an electrode jack is arranged in the middle of the furnace cover, a vertically arranged electrode is inserted in the electrode jack, a cover plate is arranged on the top cover of the electrode jack, a through hole matched and connected with the electrode is arranged in the middle of the cover plate, two cooling rings are sequentially sleeved outside the electrode, the two cooling rings are all arranged above the cover plate, an opening is formed in one side of the cooling rings along the axial direction of the cooling rings, a cooling cavity is formed in the cooling cavity, a water inlet pipe and a water outlet pipe are connected in the cooling cavity, the water inlet pipe and the water outlet pipe are respectively arranged at two sides of the opening, and one ends of the water inlet pipe and the water outlet pipe, which are far away from the cooling rings, are connected with a water supply mechanism;
the electrode is sleeved with a mounting sleeve, the mounting sleeve is connected with the electrode through a bolt assembly, the mounting sleeve is positioned at the top end of the electrode, the side edge of the mounting sleeve is connected with a movable sleeve through a horizontal cross arm, the movable sleeve is sleeved outside a stand column, the stand column is positioned at the outer side of the furnace body and is vertically arranged, and the bottom end of the stand column is provided with a base;
the utility model discloses a motor, including stand, movable sleeve, motor, stay cord, locating pipe, stay cord top through the leg joint has the pulley of vertical setting, the locating pipe of vertical setting is installed to the bottom side of stand, threaded connection has two locating bolts of perpendicular to locating pipe on the lateral wall of locating pipe, movable sleeve's top is connected with the stay cord, the stay cord passes from the top of pulley and from the inside of locating pipe, the bottom of stay cord winds to establish on the output shaft of motor, and the motor is located the bottom side of stand.
Preferably, the openings on the two cooling rings are staggered.
Preferably, the water supply mechanism comprises a cold water tank and a wastewater tank which are arranged outside the furnace body, one end of the water inlet pipe, which is far away from the cooling ring, is connected with the cold water tank, the water pump is arranged inside the cold water tank, the water outlet of the water pump is connected with the water inlet pipe, one end of the water outlet pipe, which is far away from the cooling ring, is connected with the wastewater tank, the top of the cold water tank is provided with a water adding pipe, and the bottom of the wastewater tank is provided with a water discharging pipe.
Preferably, a sliding groove is formed in the side face of the top of the upright post along the axial direction of the upright post, and a sliding block which is connected with the sliding groove in a matched mode is installed on the inner side of the movable sleeve.
Preferably, one end of the positioning bolt, which is positioned at the inner side of the positioning pipe, is connected with a limiting abutting block.
The invention provides a bottom electrode-free direct current arc furnace, which has the beneficial effects that: the invention has the advantages of reasonable design and convenient use, is convenient for downwards adjusting the position of the electrode with loss after being used for a period of time, can cool the electrode positioned outside the furnace body to a certain extent, ensures that the electrode can work normally, and is convenient for practical use.
Drawings
FIG. 1 is a schematic diagram of a DC arc furnace without bottom electrode according to the present invention;
fig. 2 is a top view of a cooling ring structure of a dc arc furnace without bottom electrode according to the present invention.
In the figure: furnace body 1, furnace shell 2, furnace lid 3, slag hole 4, discharge gate 5, feed inlet 6, electrode jack 7, apron 8, electrode 9, cooling ring 10, inlet tube 11, outlet pipe 12, opening 13, installation sleeve 14, xarm 15, movable sleeve 16, spout 17, pulley 18, stay 19, stand 20, locating tube 21, locating bolt 22, motor 23, base 24, cold water tank 25, waste water tank 26.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-2, a bottomless electrode direct current arc furnace comprises a furnace body 1 and a furnace cover 3, wherein the furnace cover 3 is covered on the top of the furnace body 1, a furnace shell 2 is sleeved outside the furnace body 1, a slag hole 4 and a discharge hole 5 are respectively arranged on two sides of the bottom of the furnace body 1, a feeding hole 6 is arranged on one side of the furnace cover 3, an electrode jack 7 is arranged in the middle of the furnace cover 3, an electrode 9 which is arranged vertically is inserted in the electrode jack 7, a cover plate 8 is covered on the top of the electrode jack 7, and a through hole which is connected with the electrode 9 in a matched manner is formed in the middle of the cover plate 8.
The outside of electrode 9 overlaps in proper order and is equipped with two cooling rings 10, and two cooling rings 10 all are located the top of apron 8, and opening 13 has been seted up along its axial to one side of cooling ring 10, and cooling chamber has been seted up along its circumference to the inside of cooling ring 10, and this cooling chamber internal connection has inlet tube 11 and outlet pipe 12, and inlet tube 11 and outlet pipe 12 are located the both sides of opening 13 respectively, and the one end that cooling ring 10 was kept away from to inlet tube 11 and outlet pipe 12 is connected with water supply mechanism. The openings 13 on the two cooling rings 10 are staggered. The opening 13 is arranged on the cooling ring 10, so that a complete annular cavity cannot be formed in the cooling cavity in the cooling ring 10, cooling water can circulate in the cooling cavity, the electrode 9 can be cooled in a surrounding mode to a great extent by the cooling water, the opening 13 on the two cooling rings 10 is arranged in a staggered mode, cooling treatment of the electrode 9 by the two cooling rings 10 is comprehensive, the situation that one side of the electrode 9 cannot be cooled due to the existence of the opening 13 is avoided, and practical use is facilitated.
The water supply mechanism is including setting up in cold water tank 25 and the waste water tank 26 in the furnace body 1 outside, and the one end that cooling ring 10 was kept away from to inlet tube 11 is connected with cold water tank 25, and the inside of cold water tank 25 is provided with the water pump, and the delivery port and the inlet tube 11 of water pump are connected, and the one end that cooling ring 10 was kept away from to outlet tube 12 is connected with waste water tank 26, and the top of cold water tank 25 is provided with the water pipe, and the bottom of waste water tank 26 is provided with the drain pipe. Cold water in the cold water tank 25 can enter the cooling ring 10 through the water inlet pipe 11, the cold water flows from one end of the cooling cavity to the other end of the cooling cavity and flows out through the water outlet pipe 12, and water in the waste water tank 26 can be put into the cold water tank 25 for reuse after the cooling treatment.
The outside cover of electrode 9 is equipped with installation sleeve 14, and passes through bolted component connection between installation sleeve 14 and the electrode 9, and installation sleeve 14 is located the top of electrode 9, and the side of installation sleeve 14 is connected with movable sleeve 16 through the xarm 15 that the level set up, and movable sleeve 16 cover is established in the outside of stand 20, and stand 20 is located the outside of furnace body 1, and stand 20 is vertical setting, and the bottom of stand 20 is provided with base 24. The top side of the upright post 20 is provided with a chute 17 along the axial direction thereof, and the inner side of the movable sleeve 16 is provided with a sliding block which is matched and connected with the chute 17, thus being convenient for the movable sleeve 16 to move up and down.
The top of stand 20 is through the pulley 18 of the vertical setting of leg joint, and vertical setting's registration arm 21 is installed to the bottom side of stand 20, and threaded connection has two perpendicular to registration arm 21's positioning bolt 22 on the lateral wall of registration arm 21, and movable sleeve 16's top is connected with stay cord 19, and stay cord 19 passes from the top of pulley 18 and passes from the inside of registration arm 21, and the bottom of stay cord 19 winds and establishes on the output shaft of motor 23, and motor 23 is located the bottom side of stand 20. One end of the positioning bolt 22, which is positioned on the inner side of the positioning pipe 21, is connected with a limiting abutting block, the two positioning bolts 22 are screwed on the inner side of the positioning pipe 21 to limit the position of the pull rope 19, and the limiting abutting block can increase the contact area between the positioning bolt 22 and the pull rope 19, so that the positioning effect of the positioning bolt 22 on the pull rope 19 is better. The motor 23 has a good retraction effect on the pull rope 19, and is convenient for adjusting the position of the electrode 9.
After the electrode 9 is used for a period of time, the bottom end of the electrode 9 is worn, so that the pull rope 19 can be adjusted through the motor 23, the position of the electrode 9 is moved downwards, and the furnace body 1 can work normally. In the prior art, when the electrode 9 is above the furnace body 1, the surface of the electrode 9 is easily oxidized due to the influence of temperature, so that the normal operation of the electrode 9 after entering the furnace body 1 can be influenced, and the service life of the electrode 9 can be reduced, therefore, the electrode 9 is cooled by arranging the cooling ring 10 outside the electrode 9, and the electrode 9 can be ensured to normally operate after entering the furnace body 1. The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a no bottom electrode direct current arc furnace, includes furnace body (1) and bell (3), bell (3) are covered and are established at the top of furnace body (1), and the outside cover of furnace body (1) is equipped with stove outer covering (2), the bottom both sides of furnace body (1) are provided with slag notch (4) and discharge gate (5) respectively, one side of bell (3) is provided with feed port (6), and the middle part of bell (3) has seted up electrode jack (7), electrode jack (7) interpolation is equipped with electrode (9) of vertical setting, the top lid of electrode jack (7) is equipped with apron (8), the through-hole of being connected with electrode (9) cooperation has been seted up at the middle part of apron (8), its characterized in that, the outside cover of electrode (9) is equipped with two cooling ring (10) in proper order, and two cooling ring (10) all are located the top of apron (8), opening (13) have been seted up along its axial to one side of cooling ring (10), the inside of cooling ring (10) has seted up cooling cavity along its circumference, and this cooling cavity (11) and outlet pipe (12) both sides that are located inlet tube (12) respectively, one end of the water inlet pipe (11) and one end of the water outlet pipe (12) far away from the cooling ring (10) are connected with a water supply mechanism;
the electrode is characterized in that an installation sleeve (14) is sleeved outside the electrode (9), the installation sleeve (14) is connected with the electrode (9) through a bolt assembly, the installation sleeve (14) is positioned at the top end of the electrode (9), a movable sleeve (16) is connected to the side edge of the installation sleeve (14) through a horizontal cross arm (15) arranged horizontally, the movable sleeve (16) is sleeved outside a stand column (20), the stand column (20) is positioned at the outer side of the furnace body (1), the stand column (20) is arranged vertically, and a base (24) is arranged at the bottom end of the stand column (20);
the utility model discloses a pulley, including stand (20), pulley, motor (23), stay cord (19), locating pipe (22), stay cord (19) are connected with pulley (18) of vertical setting through leg joint in the top of stand (20), locating pipe (21) of vertical setting are installed to the bottom side of stand (20), threaded connection has two locating bolts (22) of perpendicular to locating pipe (21) on the lateral wall of locating pipe (21), the top of movable sleeve (16) is connected with stay cord (19), stay cord (19) pass from pulley (18)'s top and pass from the inside of locating pipe (21), the bottom of stay cord (19) is around establishing on the output shaft of motor (23), and motor (23) are located the bottom side of stand (20).
2. A bottomless dc arc furnace according to claim 1, characterized in that the openings (13) in the two cooling rings (10) are staggered.
3. The bottomless direct current arc furnace according to claim 1, wherein the water supply mechanism comprises a cold water tank (25) and a wastewater tank (26) which are arranged outside a furnace body (1), one end of the water inlet pipe (11) far away from the cooling ring (10) is connected with the cold water tank (25), a water pump is arranged in the cold water tank (25), a water outlet of the water pump is connected with the water inlet pipe (11), one end of the water outlet pipe (12) far away from the cooling ring (10) is connected with the wastewater tank (26), a water adding pipe is arranged at the top of the cold water tank (25), and a water discharging pipe is arranged at the bottom of the wastewater tank (26).
4. The bottom electrode-free direct current arc furnace according to claim 1, wherein a chute (17) is formed in the top side surface of the upright post (20) along the axial direction of the upright post, and a sliding block which is connected with the chute (17) in a matching manner is arranged on the inner side of the movable sleeve (16).
5. A bottomless dc arc furnace according to claim 1, characterized in that the end of the positioning bolt (22) inside the positioning tube (21) is connected with a limit abutment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958968.3A CN109099703B (en) | 2018-08-22 | 2018-08-22 | DC arc furnace without bottom electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958968.3A CN109099703B (en) | 2018-08-22 | 2018-08-22 | DC arc furnace without bottom electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109099703A CN109099703A (en) | 2018-12-28 |
| CN109099703B true CN109099703B (en) | 2023-10-31 |
Family
ID=64850668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958968.3A Active CN109099703B (en) | 2018-08-22 | 2018-08-22 | DC arc furnace without bottom electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099703B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997005438A2 (en) * | 1995-08-01 | 1997-02-13 | Mannesmann Ag | Arc furnace in particular d.c. arc furnace, and process for preventing overheating of the furnace wall |
| CN1155065A (en) * | 1994-11-22 | 1997-07-23 | 尤卡碳科技公司 | Cooling system for two-assembly furnace lid |
| JPH11219781A (en) * | 1998-01-31 | 1999-08-10 | Nippon Steel Corp | Cooling structure for furnace-bottom electrode of direct current arc furnace |
| EP1111072A1 (en) * | 1999-12-22 | 2001-06-27 | Tung Ho Steel Enterprise Corporation | Fastening arrangement for bottom electrode in an electric arc furnace |
| CN201463505U (en) * | 2009-07-14 | 2010-05-12 | 永州市兴发电熔科技有限公司 | DC arc furnace |
| CN106288762A (en) * | 2015-05-22 | 2017-01-04 | 江苏国红金属材料有限公司 | A kind of electric arc furnace |
| CN208936749U (en) * | 2018-08-22 | 2019-06-04 | 申达电气集团有限公司 | A kind of bottomless electrode DC electric arc furnaces |
-
2018
- 2018-08-22 CN CN201810958968.3A patent/CN109099703B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155065A (en) * | 1994-11-22 | 1997-07-23 | 尤卡碳科技公司 | Cooling system for two-assembly furnace lid |
| WO1997005438A2 (en) * | 1995-08-01 | 1997-02-13 | Mannesmann Ag | Arc furnace in particular d.c. arc furnace, and process for preventing overheating of the furnace wall |
| JPH11219781A (en) * | 1998-01-31 | 1999-08-10 | Nippon Steel Corp | Cooling structure for furnace-bottom electrode of direct current arc furnace |
| EP1111072A1 (en) * | 1999-12-22 | 2001-06-27 | Tung Ho Steel Enterprise Corporation | Fastening arrangement for bottom electrode in an electric arc furnace |
| CN201463505U (en) * | 2009-07-14 | 2010-05-12 | 永州市兴发电熔科技有限公司 | DC arc furnace |
| CN106288762A (en) * | 2015-05-22 | 2017-01-04 | 江苏国红金属材料有限公司 | A kind of electric arc furnace |
| CN208936749U (en) * | 2018-08-22 | 2019-06-04 | 申达电气集团有限公司 | A kind of bottomless electrode DC electric arc furnaces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109099703A (en) | 2018-12-28 |
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