CN215724984U - Submerged arc furnace copper bottom ring - Google Patents
Submerged arc furnace copper bottom ring Download PDFInfo
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- CN215724984U CN215724984U CN202122364270.9U CN202122364270U CN215724984U CN 215724984 U CN215724984 U CN 215724984U CN 202122364270 U CN202122364270 U CN 202122364270U CN 215724984 U CN215724984 U CN 215724984U
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Abstract
The utility model discloses a submerged arc furnace copper bottom ring, which comprises a copper bottom ring body, at least one arc-shaped cover plate and at least one stop block; the cold surface of the copper bottom ring body is provided with an annular groove, the opening of the notch of the annular groove is formed in the cold surface of the copper bottom ring body, and the edge of the notch of the annular groove is provided with a cover plate mounting groove; the baffle block is arranged in the annular groove and divides the annular groove into at least one arc-shaped groove section, the number of the arc-shaped groove sections is the same as that of the arc-shaped cover plate, the arc-shaped cover plate corresponds to that of the arc-shaped cover plate one by one, the arc-shaped cover plate is arranged in the cover plate mounting groove and covers the notch of the arc-shaped groove section, and the edge of the arc-shaped cover plate is welded with the cold surface of the copper bottom ring body; the inner wall of arc groove section, arc apron and the dog that is located arc groove section both ends enclose into cooling channel jointly, are equipped with inlet opening and apopore on the arc apron, and inlet opening, apopore all communicate with cooling channel. The utility model has the advantages of better mechanical property and heat-conducting property, higher use reliability, lower manufacturing cost and easier popularization and application.
Description
Technical Field
The utility model relates to the technical field of metallurgical electric furnace equipment, in particular to a copper bottom ring of a submerged arc furnace.
Background
The submerged arc furnace is also called electric furnace, mainly used for producing products such as ferroalloy, industrial silicon, calcium carbide, yellow phosphorus, etc. The main function of the electrode holder is to maintain the effective length of the working end of the electrode by holding the electrode, transmitting current to the electrode through the conductive tube, contact elements (such as copper shoes and pressure rings), and periodically depressing the electrode to replenish the consumed portion of the working end of the electrode. The electrode holder mainly comprises a bottom ring, a protective screen, a conductive tube, a contact element and the like, wherein the protective screen, the conductive tube, the contact element and the like are positioned above the bottom ring. Most of the electrode holders are positioned in the submerged arc furnace and directly contacted with high-temperature flue gas in the furnace, so that the working environment is severe.
The bottom ring is one of the key parts of the electrode holder and is used for protecting other parts of the electrode holder, so that the bottoms of the protective screen and the contact elements are not damaged by high-temperature smoke, the high-temperature smoke is isolated from entering the inside of the electrode holder, and the parts such as a conductive tube, the contact elements and the like in the electrode holder are prevented from being damaged.
The bottom ring of the existing ore-smelting furnace has two types: one is casting the copper bottom ring; the other is forging the copper bottom ring.
The cast copper bottom ring is manufactured by adopting a direct casting molding or pre-embedded copper pipe casting molding process. The cast copper bottom ring has material defects which cannot be eliminated fundamentally in the casting process, such as loose casting structure, air holes, slag inclusion, cracks and the like in the copper bottom ring. The cast copper bottom ring body has poor mechanical properties and poor heat conductivity. The bottom ring of the cast and formed embedded copper pipe is easy to have air gap thermal resistances of different degrees inside because the pure copper matrix and the embedded copper pipe are not completely fused, so that the heat conductivity of the whole assembly is reduced. Under the high-temperature working environment, the bottom ring is easy to be deformed by heating, and the casting defects are enlarged along with the deformation, so that the use reliability of the bottom ring is seriously influenced.
The forged copper bottom ring is made by adopting a forged copper plate, drilling deep holes on the forged copper plate to form a cooling water channel (drilling holes are generally drilled from the side surface, the bottom surface or the outer cambered surface), welding plugs after bending the plate, a cover plate, a water inlet pipe and a water outlet pipe which are positioned on the top surface and the like. The welding seam generated when the end cap is welded on the forged copper bottom ring is exposed in a high-temperature environment for a long time, and the water leakage problem caused by the occasional cracks of the welding seam in the use process is solved. Moreover, although various defects of the cast copper bottom ring are overcome, the forged copper bottom ring has complex manufacturing process and higher manufacturing cost, and is limited in practical application and popularization.
Disclosure of Invention
The utility model aims to provide the submerged arc furnace copper bottom ring which has the advantages of good mechanical property and heat conducting property, high use reliability, low manufacturing cost and easy popularization and application.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
the utility model provides a hot stove copper bottom ring in ore deposit, includes copper bottom ring body, its characterized in that: the submerged arc furnace copper bottom ring also comprises at least one arc-shaped cover plate and at least one stop block; the cold surface of the copper bottom ring body is provided with an annular groove, the opening of the notch of the annular groove is arranged on the cold surface of the copper bottom ring body, and the edge of the notch of the annular groove is provided with a cover plate mounting groove; the baffle block is arranged in the annular groove and divides the annular groove into at least one arc-shaped groove section, the number of the arc-shaped groove sections is the same as that of the arc-shaped cover plate, the arc-shaped cover plate corresponds to that of the arc-shaped cover plate one by one, the arc-shaped cover plate is arranged in the cover plate mounting groove and covers the notch of the arc-shaped groove section, and the edge of the arc-shaped cover plate is welded with the cold surface of the copper bottom ring body; the inner wall of arc groove section, arc apron and the dog that is located arc groove section both ends enclose into cooling channel jointly, are equipped with inlet opening and apopore on the arc apron, and inlet opening, apopore all communicate with cooling channel.
Typically, the side of the copper bottom ring body facing the furnace chamber of the submerged arc furnace is hot (facing downwards) and the side facing away from the furnace chamber of the submerged arc furnace is cold (facing upwards).
Usually, the material of the copper bottom ring body is pure copper or copper alloy.
Casting a copper material into an annular copper blank, and then rolling the annular copper blank to form an annular groove (or removing materials on the annular forged copper material by adopting an annular forged copper material in a milling mode to form the annular groove); then, removing materials at the edge of the notch of the annular groove in a milling mode to obtain a cover plate mounting groove capable of accommodating the arc-shaped cover plate; and then, installing each arc-shaped cover plate in the cover plate installation groove, and welding the edge of each arc-shaped cover plate with the cold surface of the copper bottom ring body.
Because the copper bottom ring body is rolled or forged, compared with a cast copper bottom ring, the mechanical property is improved (the forged copper tensile strength Rm is more than or equal to 200MPa, and the cast copper Rm is more than or equal to 170 MPa), and the thermal deformation is reduced; the heat conductivity is improved (the heat conductivity of forged copper is more than or equal to 380W/mk, the heat conductivity of cast copper is more than or equal to 320W/mk), the metallographic structure is compact and uniform, various defects in the casting process are eliminated, and air gap thermal resistance generated by incomplete fusion in the buried pipe casting process is eliminated.
In addition, the border of arc apron and the cold side welding of copper bottom ring body, the welding seam that produces is all concentrated on the cold side of copper bottom ring body, and for the bottom surface of copper bottom ring body, side and extrados face, the ambient temperature that the welding seam was located on the cold side of copper bottom ring body is lower, has solved original forging copper bottom ring welding seam and has exposed in high temperature environment, and the problem that the crackle can appear occasionally in the welding seam and lead to leaking in the use.
Because the annular groove is processed on the cold surface of the copper bottom ring body, the whole weight and cost of the processed copper bottom ring can be greatly reduced, and the copper bottom ring is easier to popularize and apply.
Generally, the cover plate mounting groove has a notch width greater than that of the annular groove. After the cover plate mounting groove is processed at the edge of the notch of the annular groove, two annular steps are usually formed between the bottom of the cover plate mounting groove and the wall of the annular groove, and the two annular steps are respectively positioned at two sides of the annular groove and used for supporting each arc-shaped cover plate.
In a preferable scheme, the submerged arc furnace copper bottom ring comprises at least two stop blocks, and each stop block divides the annular groove into at least two arc-shaped groove sections. Through the structure, the bottom ring of the submerged arc furnace copper is provided with a plurality of mutually independent cooling channels, and the cooling channels are not communicated with each other.
In the preferred scheme, the copper bottom ring body is made of forged copper materials or rolled copper materials.
As a preferable scheme of the utility model, the edge of the arc-shaped cover plate is connected with the groove wall of the cover plate mounting groove through an annular welding line. Before the annular welding seam is generated, impurities such as oxide scales and oil stains need to be removed around the seams of the edge of the arc-shaped cover plate and the groove wall of the cover plate installation groove. The welding is generally arc welding or friction stir welding.
In a preferred embodiment of the present invention, the arc cover plate is made of stainless steel or copper.
As a preferable aspect of the present invention, the bottom of the stopper is welded to the groove bottom of the annular groove.
As the preferable scheme of the utility model, lifting lugs are arranged at the tops of the stop blocks, lifting holes are arranged at the tops of the lifting lugs, and the lifting holes are positioned above the top surfaces of the arc-shaped cover plates. The bottom of lug can be connected with the dog through welding, also can be with dog body coupling. The lifting lugs are arranged on the cold surface of the copper bottom ring body, and the copper bottom ring body can be conveniently lifted through the lifting holes.
In a further preferable embodiment of the present invention, the stop block and the lifting lug are made of stainless steel.
As a preferred scheme of the utility model, at least one water channel inner baffle plate is arranged in the arc-shaped groove section, and the lower edge of the water channel inner baffle plate is welded with the groove bottom of the annular groove; the inner wall of the arc-shaped groove section, the corresponding arc-shaped cover plate, the stop blocks positioned at two ends of the arc-shaped groove section and the water channel inner partition plate in the arc-shaped groove section jointly enclose the cooling channel. The inner partition plate of the water channel is cut for standby after bending (or not bending). The arc-shaped groove section is divided into required water passing routes by utilizing the inner partition plate of the water channel as required, and the inner wall of the annular groove, the arc-shaped cover plate and the side walls of the two stop blocks jointly form a cooling channel, so that the cooling is more intensive and uniform.
In a further preferred embodiment of the present invention, the inner partition plate of the water channel is made of stainless steel.
As a further preferable scheme of the utility model, at least one partition positioning groove is arranged on the lower surface of the arc-shaped cover plate, the opening of the partition positioning groove faces downwards, the shape and contour of the partition positioning groove are the same as those of the upper edge of the partition in the water channel, the opening width of the partition positioning groove is matched with the thickness of the upper edge of the partition in the water channel, and the upper edge of the partition in the water channel is positioned in the partition positioning groove. Through the arrangement, a gap between the upper edge of the inner partition plate of the water channel and the bottom of the arc-shaped cover plate can be eliminated, and water leakage on two sides of the inner partition plate of the water channel is avoided.
As a further preferable scheme of the utility model, a plurality of plug welding grooves which are arranged at intervals are arranged on the upper surface of the arc-shaped cover plate, and each plug welding groove is communicated with the partition plate positioning groove; and welding seams are arranged in each plug welding groove, and the upper edge of the partition plate in the water channel is connected with the arc-shaped cover plate through the welding seams. Because the upper edge of the partition board in the water channel is positioned in the partition board positioning groove, each plug welding groove is communicated with the partition board positioning groove, and the upper edge of the partition board in the water channel is connected with the arc-shaped cover plate through generating welding seams in the plug welding grooves. The welding seam in the plug welding groove is formed by plug welding.
As a preferred scheme of the utility model, a water inlet pipe and a water outlet pipe are welded on the arc-shaped cover plate, a bottom interface of the water inlet pipe is communicated with a water inlet hole of the arc-shaped cover plate, and a bottom interface of the water outlet pipe is communicated with a water outlet hole of the arc-shaped cover plate. Generally, the water inlet pipe and the water outlet pipe are both made of stainless steel. The inlet tube that will be good in advance is welded integratively with the inlet opening assembly of arc apron, and the outlet pipe that will be good in advance is welded integratively with the apopore assembly of arc apron, and is reserve, waits to assemble in the apron mounting groove. The welding mode can adopt two-sided welding post-leveling.
Compared with the prior art, the utility model has the following advantages:
the submerged arc furnace copper bottom ring has the advantages of good mechanical property and heat conducting property, high use reliability, low manufacturing cost and easy popularization and application.
Drawings
FIG. 1 is a schematic block diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of α in FIG. 2;
FIG. 4 is a schematic view of an arcuate cover plate according to an embodiment of the present invention;
FIG. 5 is an enlarged view of β in FIG. 4;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
FIG. 7 is a cross-sectional view of C-C of FIG. 5;
FIG. 8 is a schematic structural view of the arc-shaped cover plate of FIG. 4 with an upper water inlet pipe and a water outlet pipe installed thereon;
FIG. 9 is a cross-sectional view D-D of FIG. 8;
FIG. 10 is a schematic view of the configuration of the annular groove for mounting the internal partition of the water supply channel in the embodiment of the present invention;
FIG. 11 is an enlarged view of δ of FIG. 10;
FIG. 12 is a cross-sectional view taken along line G-G of FIG. 11;
FIG. 13 is a cross-sectional view taken at H-H in FIG. 11;
FIG. 14 is a schematic view of the arrangement of FIG. 8 with each arcuate cover plate mounted over the notches of a corresponding arcuate groove segment;
FIG. 15 is a cross-sectional view taken along line I-I of FIG. 14;
fig. 16 is a cross-sectional view of J-J in fig. 14.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-16, the copper bottom ring of the submerged arc furnace in the present embodiment includes a copper bottom ring body 1, four arc-shaped cover plates 2, and four stoppers 3; an annular groove 11 is arranged on the cold surface of the copper bottom ring body 1, the opening of the notch of the annular groove 11 is arranged on the cold surface of the copper bottom ring body 1, and a cover plate mounting groove 12 is arranged at the edge of the notch of the annular groove 11; the four stop blocks 3 are all arranged in the annular groove 11 and divide the annular groove 11 into four arc-shaped groove sections 13; the arc-shaped groove sections 13 are the same in number and correspond to the arc-shaped cover plates 2 one by one, the arc-shaped cover plates 2 are installed in the cover plate installation grooves 12 and cover the notches of the arc-shaped groove sections 13, and the edges of the arc-shaped cover plates 2 are welded with the cold surface of the copper bottom ring body 1; the inner wall of arc groove section 13, arc apron 2 and the dog 3 that is in arc groove section 13 both ends enclose into cooling channel 14 jointly, are equipped with inlet opening 26 and apopore 27 on the arc apron 2, and inlet opening 26, apopore 27 all communicate with cooling channel 14.
Typically, the side of the copper bottom ring body 1 facing the furnace chamber of the submerged arc furnace is hot (facing downwards) and the side facing away from the furnace chamber of the submerged arc furnace is cold (facing upwards).
Usually, the material of the copper bottom ring body 1 is a copper alloy. The copper bottom ring body 1 is made of forged copper.
Generally, the width of the notch of the cover installation groove 12 is greater than that of the annular groove 11. After the cover plate mounting groove 12 is processed at the edge of the notch of the annular groove 11, two annular steps are usually formed between the groove bottom of the cover plate mounting groove 12 and the groove wall of the annular groove 11, and the two annular steps are respectively positioned at two sides of the annular groove 11 and used for supporting each arc-shaped cover plate 2.
The edge of the arc-shaped cover plate 2 is connected with the groove wall of the cover plate installation groove 12 through an annular welding seam 21. Before the circumferential weld 21 is formed, impurities such as oxide scales and oil stains need to be removed around the joints of the edge of the arc-shaped cover plate 2 and the groove wall of the cover plate installation groove 12. The welding is generally arc welding or friction stir welding. The arc-shaped cover plate 2 is made of stainless steel.
The bottom of the stop block 3 is welded with the groove bottom of the annular groove 11.
Lifting lugs 4 are arranged at the tops of the stop blocks 3, lifting holes 41 are arranged at the tops of the lifting lugs 4, and the lifting holes 41 are located above the top surfaces of the arc-shaped cover plates 2. The bottom of the lifting lug 4 can be connected with the stop block 3 through welding, and can also be integrally connected with the stop block 3. The lifting lugs 4 are arranged on the cold surface of the copper bottom ring body 1, and the copper bottom ring body 1 can be conveniently lifted through the lifting holes 41. The stop block 3 and the lifting lug 4 are made of stainless steel.
Two water channel inner baffles 5 are arranged in the arc-shaped groove section 13, and the material of the water channel inner baffles 5 is stainless steel; the lower edge of the inner partition plate 5 of the water channel is welded with the bottom of the annular groove 11; the inner wall of the arc-shaped groove section 13, the corresponding arc-shaped cover plate 2, the stop blocks 3 at two ends of the arc-shaped groove section 13 and the water channel inner partition plate 5 in the arc-shaped groove section 13 jointly enclose the cooling channel 14. The inner partition 5 of the water channel is cut for standby after bending (or not bending). The arc-shaped groove section 13 is divided into required water flow paths by the water channel inner partition plate 5 as required, and a cooling channel 14 is enclosed by the inner wall of the annular groove 11, the arc-shaped cover plate 2 and the side walls of the two stop blocks 3, so that cooling is more intensive and uniform.
The lower surface of the arc-shaped cover plate 2 is provided with a partition positioning groove 22, the opening of the partition positioning groove 22 faces downwards, the shape and the contour of the partition positioning groove 22 are the same as those of the upper edge of the water channel inner partition plate 5, the opening width of the partition positioning groove 22 is matched with the thickness of the upper edge of the water channel inner partition plate 5, and the upper edge of the water channel inner partition plate 5 is positioned in the partition positioning groove 22. Through the arrangement, a gap between the upper edge of the inner partition plate 5 of the water channel and the bottom of the arc-shaped cover plate 2 can be eliminated, and water leakage at two sides of the inner partition plate 5 of the water channel is avoided.
A plurality of plug welding grooves 23 which are arranged at intervals are arranged on the upper surface of the arc-shaped cover plate 2, and each plug welding groove 23 is communicated with the clapboard positioning groove 22; and welding seams 231 are arranged in each plug welding groove 23, and the upper edge of the water channel inner partition plate 5 is connected with the arc-shaped cover plate 2 through the welding seams 231. Since the upper edge of the partition plate 5 in the water channel is located in the partition positioning groove 22, each plug-weld groove 23 is communicated with the partition positioning groove 22, and the upper edge of the partition plate 5 in the water channel is connected with the arc-shaped cover plate 2 by generating the weld 231 in the plug-weld groove 23. The weld in the plug weld groove 23 is formed by plug welding.
The arc apron 2 goes up the welding and has inlet tube 24 and outlet pipe 25, and the bottom interface of inlet tube 24 communicates with the inlet opening 26 of arc apron 2, and the bottom interface of outlet pipe 25 communicates with the apopore 27 of arc apron 2. Generally, the water inlet pipe 24 and the water outlet pipe 25 are made of stainless steel. The water inlet pipe 24 and the water inlet hole 26 of the arc-shaped cover plate 2 which are processed in advance are assembled and welded into a whole, and the water outlet pipe 25 and the water outlet hole 27 of the arc-shaped cover plate 2 which are processed in advance are assembled and welded into a whole for standby, and are waited to be assembled in the cover plate mounting groove 12. The welding mode can adopt two-sided welding post-leveling.
Firstly, casting a copper material into an annular copper blank, and then rolling the annular copper blank to form an annular groove 11; then, removing materials at the edge of the notch of the annular groove 11 in a milling mode to obtain a cover plate installation groove 12 capable of accommodating the arc-shaped cover plate 2; next, each arc-shaped cover plate 2 is installed in the cover plate installation groove 12, and the edge of the arc-shaped cover plate 2 is welded to the cold face of the copper bottom ring body 1.
Because the copper bottom ring body 1 is rolled or forged, compared with a cast copper bottom ring, the mechanical property is improved (the forged copper tensile strength Rm is more than or equal to 200MPa, and the cast copper Rm is more than or equal to 170 MPa), and the thermal deformation is reduced; the heat conductivity is improved (the heat conductivity of forged copper is more than or equal to 380W/mk, the heat conductivity of cast copper is more than or equal to 320W/mk), the metallographic structure is compact and uniform, various defects in the casting process are eliminated, and air gap thermal resistance generated by incomplete fusion in the buried pipe casting process is eliminated.
In addition, the border of arc apron 2 and the cold side welding of copper bottom ring body 1, the welding seam that produces is all concentrated on the cold side of copper bottom ring body 1, and for the bottom surface of copper bottom ring body 1, side and extrados, the ambient temperature that the welding seam was located on the cold side of copper bottom ring body 1 is lower, has solved original forging copper bottom ring welding seam and has exposed in high temperature environment, and the problem that the crackle can appear occasionally in the welding seam and lead to leaking in the use.
Because the annular groove 11 is processed on the cold surface of the copper bottom ring body 1, the whole weight and cost of the processed copper bottom ring can be greatly reduced, and the copper bottom ring is easier to popularize and apply.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.
Claims (10)
1. The utility model provides a hot stove copper bottom ring in ore deposit, includes copper bottom ring body, its characterized in that: the submerged arc furnace copper bottom ring also comprises at least one arc-shaped cover plate and at least one stop block; the cold surface of the copper bottom ring body is provided with an annular groove, the opening of the notch of the annular groove is arranged on the cold surface of the copper bottom ring body, and the edge of the notch of the annular groove is provided with a cover plate mounting groove; the baffle block is arranged in the annular groove and divides the annular groove into at least one arc-shaped groove section, the number of the arc-shaped groove sections is the same as that of the arc-shaped cover plate, the arc-shaped cover plate corresponds to that of the arc-shaped cover plate one by one, the arc-shaped cover plate is arranged in the cover plate mounting groove and covers the notch of the arc-shaped groove section, and the edge of the arc-shaped cover plate is welded with the cold surface of the copper bottom ring body; the inner wall of arc groove section, arc apron and the dog that is located arc groove section both ends enclose into cooling channel jointly, are equipped with inlet opening and apopore on the arc apron, and inlet opening, apopore all communicate with cooling channel.
2. The submerged arc furnace copper bottom ring according to claim 1, characterized in that: comprises at least two stop blocks, and each stop block divides the annular groove into at least two arc-shaped groove sections.
3. The submerged arc furnace copper bottom ring according to claim 1, characterized in that: the copper bottom ring body is made of forged copper materials or rolled copper materials.
4. The submerged arc furnace copper bottom ring according to claim 1, characterized in that:
the edge of the arc-shaped cover plate is connected with the wall of the cover plate mounting groove through an annular welding line;
the arc-shaped cover plate is made of stainless steel or copper;
the bottom of the stop block is welded with the bottom of the annular groove;
the arc apron is gone up the welding and is had inlet tube and outlet pipe, and the bottom interface of inlet tube and the inlet opening intercommunication of arc apron, the bottom interface of outlet pipe and the apopore intercommunication of arc apron.
5. The submerged arc furnace copper bottom ring according to claim 1, characterized in that: the top of the stop block is provided with a lifting lug, the top of the lifting lug is provided with a lifting hole, and the lifting hole is positioned above the top surface of each arc-shaped cover plate.
6. The submerged arc furnace copper bottom ring according to claim 5, characterized in that: the stop block and the lifting lug are made of stainless steel.
7. The submerged arc furnace copper bottom ring according to claim 1, characterized in that: at least one water channel inner partition plate is arranged in the arc-shaped groove section, and the lower edge of the water channel inner partition plate is welded with the groove bottom of the annular groove; the inner wall of the arc-shaped groove section, the corresponding arc-shaped cover plate, the stop blocks positioned at two ends of the arc-shaped groove section and the water channel inner partition plate in the arc-shaped groove section jointly enclose the cooling channel.
8. The submerged arc furnace copper bottom ring according to claim 7, characterized in that: the inner partition plate of the water channel is made of stainless steel.
9. The submerged arc furnace copper bottom ring according to claim 7, characterized in that: the lower surface of the arc-shaped cover plate is provided with at least one partition plate positioning groove, the opening of the partition plate positioning groove faces downwards, the shape and the contour of the partition plate positioning groove are the same as those of the upper edge of the partition plate in the water channel, the opening width of the partition plate positioning groove is matched with the thickness of the upper edge of the partition plate in the water channel, and the upper edge of the partition plate in the water channel is positioned in the partition plate positioning groove.
10. The submerged arc furnace copper bottom ring according to claim 9, characterized in that: a plurality of plug welding grooves which are arranged at intervals are arranged on the upper surface of the arc-shaped cover plate, and each plug welding groove is communicated with the partition plate positioning groove; and welding seams are arranged in each plug welding groove, and the upper edge of the partition plate in the water channel is connected with the arc-shaped cover plate through the welding seams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122364270.9U CN215724984U (en) | 2021-09-28 | 2021-09-28 | Submerged arc furnace copper bottom ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122364270.9U CN215724984U (en) | 2021-09-28 | 2021-09-28 | Submerged arc furnace copper bottom ring |
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| Publication Number | Publication Date |
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| CN215724984U true CN215724984U (en) | 2022-02-01 |
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| CN202122364270.9U Active CN215724984U (en) | 2021-09-28 | 2021-09-28 | Submerged arc furnace copper bottom ring |
Country Status (1)
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| CN (1) | CN215724984U (en) |
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2021
- 2021-09-28 CN CN202122364270.9U patent/CN215724984U/en active Active
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