CN107830727B - Arc furnace with L-shaped water-cooled furnace wall - Google Patents
Arc furnace with L-shaped water-cooled furnace wall Download PDFInfo
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- CN107830727B CN107830727B CN201711057110.1A CN201711057110A CN107830727B CN 107830727 B CN107830727 B CN 107830727B CN 201711057110 A CN201711057110 A CN 201711057110A CN 107830727 B CN107830727 B CN 107830727B
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- furnace
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- furnace body
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Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses an electric arc furnace provided with an L-shaped water-cooled furnace wall, which comprises a furnace brick and a furnace body arranged on the furnace brick, wherein a steel tapping hole is arranged below the furnace brick, a furnace door, a furnace body water tank and a waste electrode are arranged on the furnace body, an eccentric area is formed on the furnace body, an eccentric area furnace cover is arranged at the upper end of the eccentric area, the L-shaped water-cooled furnace wall is arranged on the furnace body, the L-shaped water-cooled furnace wall is integrally formed by a vertical cavity and a transverse cavity, the vertical cavity is connected with the inner side of the furnace body, and the transverse cavity is attached to the lower end of the eccentric area furnace cover. The invention has the advantages that: the normal production beat of the arc furnace is stable, and the equipment failure rate is reduced; the service life of the equipment is prolonged, and the maintenance cost is reduced; the use safety of the equipment is guaranteed.
Description
Technical Field
The invention relates to the field of metal smelting equipment, in particular to an electric arc furnace provided with an L-shaped water-cooled furnace wall.
Background
The electric arc furnace (electric arc furnace) is an electric furnace for smelting ores and metals at a high temperature by means of electrode arc generation. The energy is concentrated when the gas discharges to form an arc, and the temperature of an arc area is more than 3000 ℃. Compared with other steelmaking furnaces, the electric arc furnace has the advantages of high process flexibility, capability of effectively removing sulfur, phosphorus and other impurities, easy control of furnace temperature, small occupied area of equipment and suitability for smelting high-quality alloy steel. An arc furnace used in the casting smelting industry is provided with a furnace body eccentric area, and because of the existence of the eccentric area, the furnace cover and the furnace body are suspended at the position close to the eccentric area, and the suspended furnace body is burnt at high temperature of molten steel for a long time to cause cracks, burning loss and water leakage, so that potential safety hazards are generated, and a group of water-cooled furnace walls are used for cooling and protecting the furnace body.
The traditional water-cooled furnace wall is a vertical suspension box body formed by overlapping and welding seamless steel pipes with the thickness of 5mm, and the vertical suspension box body is arranged on the inner side of the furnace body and is connected with the furnace body through bolts, so that only one side surface of the furnace body can be cooled and protected. The junction of lower terminal surface and eccentric bell of furnace body can not form the cooling protection to it because of structural shape reason raw water cooling oven to lead to the lower terminal surface of furnace body to expose outside for a long time, directly receive molten steel high temperature to burn, finally lead to the furnace body fracture, form the tearing of furnace body water tank and leak, when serious, because of the connecting bolt burns out the water cooling oven wall falls into in the molten steel in the stove, brings the potential safety hazard for equipment use.
Disclosure of Invention
The invention aims to solve the technical problem of providing an arc furnace provided with an L-shaped water-cooled furnace wall, which solves the problem of protection defect of the water-cooled furnace wall with a traditional structure at the part and improves the use safety of equipment.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
the utility model provides an install electric arc furnace of L type water-cooling oven, includes the stove brick and establishes the furnace body on the stove brick, the below of stove brick is equipped with the tap hole, be equipped with furnace gate, furnace body water tank and waste material electrode on the furnace body, the furnace body is formed with eccentric district, eccentric district upper end is equipped with eccentric district bell, be equipped with L type water-cooling oven on the furnace body, L type water-cooling oven is by vertical cavity and horizontal cavity integrated into one piece, vertical cavity is connected with the inboard of furnace body, horizontal cavity pastes the lower extreme at eccentric district bell.
The vertical cavity and the transverse cavity are hollow structures, the vertical cavity and the transverse cavity are communicated with each other, and the L-shaped water-cooled furnace wall is communicated with the furnace body water tank and used for providing cooling circulating water.
The vertical cavity is characterized in that a plurality of cavity clapboards are arranged in the vertical cavity, and the cavity clapboards are transversely arranged side by side.
The further improvement is that a circulating water channel is formed at the end of each cavity partition board, and the circulating water channels are communicated with the upper side space and the lower side space of the cavity partition board.
The improvement is that the circulating water channels on the two adjacent cavity clapboards are positioned at the ends in opposite directions.
The vertical cavity is provided with a connecting piece, and the vertical cavity is fixed on the inner side of the furnace body through the connecting piece.
The beneficial effects of the invention are as follows:
1) The normal production beat of the arc furnace is stable, and the equipment failure rate is reduced. The fault rate of the L-shaped water-cooled furnace wall is basically zero, and the invention provides favorable guarantee for normal smelting procedures; meanwhile, the improvement of the water-cooled furnace wall structure brings great convenience for maintenance, the vertical arc-shaped box body is changed into the L-shaped water-cooled furnace wall, the box body is simple in structure, the outer shell is an arc-shaped surface or a plane, and when the leak is repaired by welding, maintenance personnel can timely and conveniently handle the leak no matter what position the leak is in, and the leak is easy to observe and repair.
2) The service life of the equipment is prolonged, and the maintenance cost is reduced. The water-cooled furnace wall used before is made of a seamless steel pipe with the thickness of 5mm, the pipe wall is too thin and easy to damage, the repair is difficult, the L-shaped water-cooled furnace wall is made of a Q235 steel plate with the thickness of 16mm, all the connecting places are sealed by single-sided welding and double-sided forming and full welding, and more importantly, the L-shaped part protects the lower end face of the furnace body, so that the furnace body is not burnt directly at high temperature. Compared with the prior water-cooled furnace wall, the L-shaped water-cooled furnace wall of the invention is not required to be replaced within a few years under the normal use condition.
3) The use safety of the equipment is guaranteed. The L-shaped water-cooled furnace wall reduces or even avoids the potential safety hazard of water leakage of the water-cooled furnace wall, the connecting and fixing bolt fixes the metal soup under the cooling protection of the L-shaped part, the potential safety hazard that the water-cooled furnace wall box falls into molten steel is eliminated, and the self use safety of the equipment is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of the present invention;
FIG. 3 is a side view of a vertical cavity;
FIG. 4 is a top view of a vertical cavity;
wherein, 1-furnace brick, 2-furnace body, 3-steel tapping hole, 4-furnace door, 5-furnace body water tank, 6-waste electrode, 7-eccentric zone, 8-eccentric zone bell, 9-L water-cooled furnace wall, 901-vertical cavity, 902-horizontal cavity, 903-cavity baffle, 904-circulating water channel, 10-connecting piece.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
Referring to fig. 1 and 2, an arc furnace provided with an L-shaped water-cooled furnace wall comprises a furnace brick 1 and a furnace body 2 arranged on the furnace brick 1, wherein a steel outlet 3 is arranged below the furnace brick 1, a furnace door 4, a furnace body water tank 5 and a waste electrode 6 are arranged on the furnace body 2, an eccentric area 7 is formed on the furnace body 2, an eccentric area furnace cover 8 is arranged at the upper end of the eccentric area 7, an L-shaped water-cooled furnace wall 9 is arranged on the furnace body 2, the L-shaped water-cooled furnace wall 9 is integrally formed by a vertical cavity 901 and a transverse cavity 902, the vertical cavity 901 is connected with the inner side of the furnace body 2, and the transverse cavity 902 is attached to the lower end of the eccentric area furnace cover 8.
As shown in fig. 3 and 4, the inside of the vertical cavity 901 and the inside of the horizontal cavity 902 are hollow structures, and the inside of the vertical cavity 901 and the inside of the horizontal cavity 902 are mutually communicated, and the L-shaped water-cooled furnace wall 9 is also communicated with the furnace body water tank 5 for providing cooling circulating water.
As a preferred case, a plurality of cavity separators 903 are arranged in the vertical cavity 901, and the cavity separators 903 are arranged side by side transversely.
As a preferred case, a circulation water passage 904 is formed at the end of each of the cavity separators 903, the circulation water passage 904 communicating with the upper and lower side spaces of the cavity separators 903.
Preferably, the circulating water passages 904 on two adjacent chamber dividers 903 are located at opposite ends.
As a preferable case, a connecting piece 10 is arranged on the vertical cavity 901, and the vertical cavity 901 is fixed on the inner side of the furnace body 2 through the connecting piece 10.
The L-shaped water-cooled furnace wall 9 adopts an L-shaped box body made of steel plates with Q235 and 16mm thickness, the inside of the L-shaped water-cooled furnace wall 9 is partitioned by a cavity partition 903, all the connecting places are formed by single-side welding and double-side forming and full-welding and sealing, and the whole L-shaped water-cooled furnace wall 9 is filled with cooling circulating water, so that the effective cooling of the electric arc furnace body 2 and the joint part of the furnace body 2 and the eccentric zone furnace cover 8 can be ensured, and the circulating cooling water flows in an S-shaped manner in the inner cavity of the L-shaped box body, which is equivalent to adding a thick protective layer to the original water-cooled furnace wall.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides an install electric arc furnace of L type water-cooled oven, includes stove brick (1) and establishes furnace body (2) on stove brick (1), the below of stove brick (1) is equipped with tap hole (3), be equipped with furnace gate (4), furnace body water tank (5) and waste material electrode (6) on furnace body (2), furnace body (2) are formed with eccentric district (7), eccentric district (7) upper end is equipped with eccentric district bell (8), its characterized in that: the novel furnace is characterized in that an L-shaped water-cooled furnace wall (9) is arranged on the furnace body (2), the L-shaped water-cooled furnace wall (9) is an L-shaped box body made of steel plates with the material of Q235 and the thickness of 16mm, the L-shaped water-cooled furnace wall (9) is integrally formed by a vertical cavity (901) and a transverse cavity (902), the vertical cavity (901) is connected with the inner side of the furnace body (2), and the transverse cavity (902) is attached to the lower end of the eccentric zone furnace cover (8).
2. An arc furnace having an L-shaped water cooled furnace wall mounted thereon as claimed in claim 1 wherein: the inside hollow structure that all is of vertical cavity (901) and horizontal cavity (902), and vertical cavity (901) and horizontal cavity (902) inside intercommunication each other, L type water-cooled furnace wall (9) communicate with furnace body water tank (5) again for provide cooling circulating water.
3. An arc furnace having an L-shaped water cooled furnace wall mounted thereon as claimed in claim 2 wherein: the vertical cavity (901) is internally provided with a plurality of cavity clapboards (903), and the cavity clapboards (903) are transversely arranged side by side.
4. An arc furnace having an L-shaped water cooled furnace wall mounted thereon according to claim 3, wherein: a circulating water channel (904) is formed at the end of each cavity clapboard (903), and the circulating water channel (904) is communicated with the upper side space and the lower side space of the cavity clapboard (903).
5. An arc furnace having an L-shaped water cooled furnace wall mounted thereon according to claim 4, wherein: the circulating water channels (904) on the two adjacent cavity clapboards (903) are positioned at the ends in opposite directions.
6. An arc furnace having an L-shaped water cooled furnace wall mounted thereon as claimed in claim 1 wherein: the vertical cavity (901) is provided with a connecting piece (10), and the vertical cavity (901) is fixed on the inner side of the furnace body (2) through the connecting piece (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711057110.1A CN107830727B (en) | 2017-11-01 | 2017-11-01 | Arc furnace with L-shaped water-cooled furnace wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711057110.1A CN107830727B (en) | 2017-11-01 | 2017-11-01 | Arc furnace with L-shaped water-cooled furnace wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107830727A CN107830727A (en) | 2018-03-23 |
| CN107830727B true CN107830727B (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711057110.1A Active CN107830727B (en) | 2017-11-01 | 2017-11-01 | Arc furnace with L-shaped water-cooled furnace wall |
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| Country | Link |
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| CN (1) | CN107830727B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB102234A (en) * | 1916-07-22 | 1916-11-23 | Clyde Furnace Company A Ltd | An Improvement connected with Open Hearth Regenerative Furnaces. |
| CN1155065A (en) * | 1994-11-22 | 1997-07-23 | 尤卡碳科技公司 | Cooling system for two-assembly furnace lid |
| CN102618693A (en) * | 2012-04-24 | 2012-08-01 | 中冶赛迪工程技术股份有限公司 | Closed electric furnace body being continuously charged from eccentric steel tapping side top |
| CN202626230U (en) * | 2012-06-01 | 2012-12-26 | 江苏沙钢集团有限公司 | Improved structure of electric furnace body |
| CN103361465A (en) * | 2012-03-27 | 2013-10-23 | 山西太钢不锈钢股份有限公司 | Steel-making method for electric arc furnace and steel-making device thereof |
| CN203653606U (en) * | 2013-12-13 | 2014-06-18 | 攀枝花钢城集团瑞钢工业有限公司 | Electric furnace body structure |
| CN207501653U (en) * | 2017-11-01 | 2018-06-15 | 中车长江铜陵车辆有限公司 | A kind of electric arc furnaces for being equipped with L-type water cooled furnace wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6890479B2 (en) * | 2001-09-19 | 2005-05-10 | Amerifab, Inc. | System and method for steel making |
-
2017
- 2017-11-01 CN CN201711057110.1A patent/CN107830727B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB102234A (en) * | 1916-07-22 | 1916-11-23 | Clyde Furnace Company A Ltd | An Improvement connected with Open Hearth Regenerative Furnaces. |
| CN1155065A (en) * | 1994-11-22 | 1997-07-23 | 尤卡碳科技公司 | Cooling system for two-assembly furnace lid |
| CN103361465A (en) * | 2012-03-27 | 2013-10-23 | 山西太钢不锈钢股份有限公司 | Steel-making method for electric arc furnace and steel-making device thereof |
| CN102618693A (en) * | 2012-04-24 | 2012-08-01 | 中冶赛迪工程技术股份有限公司 | Closed electric furnace body being continuously charged from eccentric steel tapping side top |
| CN202626230U (en) * | 2012-06-01 | 2012-12-26 | 江苏沙钢集团有限公司 | Improved structure of electric furnace body |
| CN203653606U (en) * | 2013-12-13 | 2014-06-18 | 攀枝花钢城集团瑞钢工业有限公司 | Electric furnace body structure |
| CN207501653U (en) * | 2017-11-01 | 2018-06-15 | 中车长江铜陵车辆有限公司 | A kind of electric arc furnaces for being equipped with L-type water cooled furnace wall |
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| Publication number | Publication date |
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| CN107830727A (en) | 2018-03-23 |
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