CN220083700U - Combined water-cooling bottom ring for submerged arc furnace - Google Patents
Combined water-cooling bottom ring for submerged arc furnace Download PDFInfo
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- CN220083700U CN220083700U CN202321240850.XU CN202321240850U CN220083700U CN 220083700 U CN220083700 U CN 220083700U CN 202321240850 U CN202321240850 U CN 202321240850U CN 220083700 U CN220083700 U CN 220083700U
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- plate
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- cooling water
- welded
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- 238000001816 cooling Methods 0.000 title claims abstract description 12
- 239000000498 cooling water Substances 0.000 claims abstract description 49
- 238000003466 welding Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims description 11
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims 1
- 238000003723 Smelting Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000002679 ablation Methods 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The utility model discloses a combined water-cooling bottom ring for an ore-smelting furnace, which is formed by combining 4-8 welding bottom rings, wherein each welding bottom ring (1) comprises a bottom plate (101), an outer ring arc-shaped plate (102), a cover plate (103), a baffle plate (104), a fin plate (105), an inner ring arc-shaped plate (106), lifting lugs (107), a cooling water interface 1 (108) and a cooling water interface 2 (109); the bottom plate (101), the outer ring arc-shaped plate (102), the cover plate (103), the fin plate (105), the inner ring arc-shaped plate (106) and the lifting lug (107) are welded together to form a cooling water channel; the cooling water interface 1 (108) and the cooling water interface 2 (109) are respectively welded at the two ends of the cover plate (103) close to the lifting lug; the arc-shaped baffle plate (104) is welded on the upper surface of the cover plate (103); the heat-resistant heat-insulating coating is sprayed on the contact part of the outer surface of the bottom ring and the high-temperature smoke, so that the ablation of the high-temperature smoke on the bottom ring is reduced.
Description
Technical Field
The utility model relates to the field of smelting equipment, in particular to a combined water-cooling bottom ring for an ore-smelting furnace.
Background
The bottom ring of the submerged arc furnace is arranged at the lower end of the combined electrode holder and is one of the important parts of the electrode holder; the bottom ring has the main function of preventing the high-temperature flue gas from ablating parts such as a conductive tube, a contact element and the like in the electrode holder, and has important significance for safe and economic operation of the submerged arc furnace. The bottom ring of the traditional submerged arc furnace is generally manufactured by adopting a casting process, and the density of the casting is low and the defects of sand holes, cracks, slag inclusion, local loosening and the like are easy to occur; the bottom ring of the casting type has low overall strength and hidden danger of water leakage, has short service life and brings a plurality of adverse effects to normal production of smelting enterprises. The bottom ring is made by drilling cooling water through holes on the forged copper plate, then bending the cooling water through holes into arc by upper and lower combined mould pressing, and then welding with other parts, the welding process between copper parts has the problems of incomplete penetration and incomplete fusion, and the welding defects such as air holes, cracks and the like are easy to form. The bottom rings of the two types of submerged arc furnace are made of pure copper materials, so that the material cost is high; in addition, due to unavoidable problems in the manufacturing mode, the manufactured submerged arc furnace has more defects of bottom rings, is easy to leak and has shorter service life.
Disclosure of Invention
In order to solve the problems of high manufacturing cost, a plurality of manufacturing defects and the like of the bottom ring of the submerged arc furnace of the two types, the utility model provides a combined water-cooling bottom ring for the submerged arc furnace, which is formed by combining 4-8 welded bottom rings, wherein an austenitic stainless steel material 06Cr25Ni20 is adopted for manufacturing, a bottom ring main body is made of a plate material, fin plates for enhancing convection heat exchange are structurally added, and high-temperature-resistant heat-insulation coating is sprayed on the contact part of the outer surface of the bottom ring and high-temperature flue gas, so that the ablation of the bottom ring by the high-temperature flue gas is greatly reduced; the welding quality of the 06Cr25Ni20 stainless steel material is easy to ensure, the welding defects are few, and the risk of leakage of cooling water is reduced.
The technical scheme adopted by the utility model is as follows: the combined water-cooling bottom ring for the submerged arc furnace is formed by combining 4-8 welding bottom rings (1), wherein each welding bottom ring (1) is formed by welding a bottom plate (101), an outer ring arc-shaped plate (102), a cover plate (103), a baffle plate (104), a fin plate (105), an inner ring arc-shaped plate (106), lifting lugs (107), a cooling water interface 1 (108) and a cooling water interface 2 (109); the bottom plate (101), the outer ring arc plate (102), the cover plate (103), the inner ring arc plate (106) and lifting lugs (107) at two ends are welded together to form a closed cooling water channel; one side elevation and the bottom surface of the fin plates (105) are respectively welded on the inner cambered surface of the outer ring arc-shaped plate (102) and the bottom plate (101) and the outer cambered surface of the inner ring arc-shaped plate (106) and the bottom plate (101), so that the heat convection area and the rigidity of the bottom ring are increased; the cooling water interface 1 (108) and the cooling water interface 2 (109) are respectively welded at the two ends of the cover plate (103) close to the lifting lug; when 4-8 welding bottom rings (1) are assembled into a combined water-cooling bottom ring, the cooling water interfaces 1 (108) and the cooling water interfaces 2 (109) on the adjacent welding bottom rings (1) are connected end to end and then connected with an external circulating cooling water pipeline or the cooling water interfaces 1 (108) and the cooling water interfaces 2 (109) on each welding bottom ring (1) are respectively connected with the external circulating cooling water pipeline; the arc-shaped baffle plate (104) is welded on the upper surface of the cover plate (103) and plays a role in positioning and supporting the protection screen.
Further, all the constituent parts of the welded bottom ring (1) are made of austenitic stainless steel material 06Cr25Ni 20.
Further, the bottom surface of the fin plate (105) is welded with the upper surface of the bottom plate (101), one side elevation of the fin plate (105) is welded with the inner cambered surface of the outer ring arc-shaped plate (102) or the outer cambered surface of the inner ring arc-shaped plate (106), and the other side elevation of the fin plate (105) is a free side elevation; the upper surface of the fin plate (105) and the lower surface of the cover plate (103) are not welded, and the maximum distance between the two surfaces is 1mm; a rectangular-section cooling water channel is formed between the free side elevation of the fin plate (105) and the outer cambered surface of the opposite inner annular arc-shaped plate (106) and the inner cambered surface of the outer annular arc-shaped plate (102) and between the upper surface of the bottom plate (101) and the lower surface of the cover plate (103), and the cross section of the cooling water channel is not smaller than the cross section of the cooling water interface 1 (108) and the cross section of the cooling water interface 2 (109).
Further, the fin plates (105) are staggered in the welding bottom ring (1), and one side elevation of each adjacent fin plate (105) is welded on the inner cambered surface of the outer ring arc-shaped plate (102) or the outer cambered surface of the inner ring arc-shaped plate (106) respectively.
Further, the external surfaces of the bottom plate (101), the inner ring arc plate (106) and the outer ring arc plate (102) of the bottom ring (1) are welded and respectively sprayed with ZS-1 type 2000 ℃ high-temperature resistant heat insulation coating with the thickness of 2-5 mm, so that the ablation of high-temperature flue gas on the external surface of the bottom ring is reduced; in the regular or irregular equipment shutdown maintenance, the high-temperature-resistant heat-insulation coating with damaged external surface of the welded bottom ring (1) can be subjected to repair spraying, so that the service life of the bottom ring is prolonged.
The combined water-cooling bottom ring for the submerged arc furnace is made of an austenitic stainless steel material 06Cr25Ni20, the material cost is relatively low, welding is easy, the quality of a welded joint is good, and welding defects are few; the high-temperature durable creep strength of the stainless steel material 06Cr25Ni20 is high, so that the strength of the bottom ring of the submerged arc furnace at high temperature is ensured; the bottom ring of the submerged arc furnace reduces the manufacturing cost on one hand, reduces the frequency of shutdown overhaul caused by the problems of leakage of the bottom ring and the like on the other hand, reduces the occurrence of safety accidents, and has remarkable benefits for improving economic benefit and safety production of submerged arc furnace smelting enterprises.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1: combined water cooled bottom ring example 1;
fig. 2: welded bottom ring in example 1;
fig. 3: welded bottom ring (with cover plate removed) in example 1;
fig. 4: combined water cooled bottom ring example 2;
fig. 5: welded bottom ring in example 2;
fig. 6: welding the bottom ring (with the cover plate removed) in example 2;
fig. 7: fig. 2 and 5 are sectional views A-A;
fig. 8: FIGS. 2 and 5 are sectional views B-B;
fig. 9: fig. 2 and 5 are cross-sectional views of C-C.
In the figure: 1. the bottom ring, 101, bottom plate, 102, outer ring arc plate, 103, cover plate, 104, baffle, 105, fin plate, 106, inner ring arc plate, 107, lifting lug, 108, cooling water interface 1, 109, cooling water interface 2.
Detailed Description
Example 1
In the embodiment 1, a combined water-cooled bottom ring for an ore furnace is formed by combining 4 welded bottom rings (1); in fig. 3, the cover plate (103) is removed in order to clearly show the internal structure of the welded bottom ring (1).
As shown in fig. 1, 2, 3, 7, 8 and 9, a combined water-cooling bottom ring for an submerged arc furnace is formed by combining 4 welding bottom rings (1), wherein each welding bottom ring (1) comprises a bottom plate (101), an outer ring arc plate (102), a cover plate (103), a baffle plate (104), a fin plate (105), an inner ring arc plate (106), lifting lugs (107), a cooling water interface 1 (108) and a cooling water interface 2 (109) which are all made of austenitic stainless steel materials 06Cr25Ni20 and are welded; the bottom plate (101), the outer ring arc plate (102), the cover plate (103), the inner ring arc plate (106) and lifting lugs (107) at two ends are welded together to form a closed cooling water channel, one side elevation and the bottom surface of the plurality of fin plates (105) are respectively welded on the inner cambered surface of the outer ring arc plate (102) and the bottom plate (101) and the outer cambered surface of the inner ring arc plate (106) and the bottom plate (101), so that the convection heat exchange area and the rigidity of the bottom ring are increased; the cooling water interface 1 (108) and the cooling water interface 2 (109) are respectively welded at the two ends of the cover plate (103) near the lifting lug.
When the 4 welding bottom rings (1) are assembled into the combined water-cooling bottom ring, the cooling water interfaces 1 (108) and the cooling water interfaces 2 (109) on the adjacent welding bottom rings (1) are connected end to end and then connected with an external circulating cooling water pipeline, or the cooling water interfaces 1 (108) and the cooling water interfaces 2 (109) on each welding bottom ring (1) are respectively connected with the external circulating cooling water pipeline.
The arc-shaped baffle plate (104) is welded on the upper surface of the cover plate (103) and plays a role in positioning and supporting the protection screen.
The bottom surface of the fin plate (105) is welded with the upper surface of the bottom plate (101), one side elevation of the fin plate (105) is welded with the inner cambered surface of the outer ring arc-shaped plate (102) or the outer cambered surface of the inner ring arc-shaped plate (106), and the other side elevation of the fin plate (105) is a free side elevation; the upper surface of the fin plate (105) and the lower surface of the cover plate (103) are not welded, and the maximum distance between the two surfaces is 1mm; a rectangular-section cooling water channel is formed between the free side elevation of the fin plate (105) and the outer cambered surface of the opposite inner annular arc-shaped plate (106) and the inner cambered surface of the outer annular arc-shaped plate (102) and between the upper surface of the bottom plate (101) and the lower surface of the cover plate (103), and the cross section of the cooling water channel is not smaller than the cross section of the cooling water interface 1 (108) and the cross section of the cooling water interface 2 (109); the fin plates (105) are staggered in the welding bottom ring (1), and one side elevation of each adjacent fin plate (105) is welded on the inner cambered surface of the outer ring arc-shaped plate (102) or the outer cambered surface of the inner ring arc-shaped plate (106) respectively.
The bottom plate (101), the inner ring arc plate (106) and the outer ring arc plate (102) of the bottom ring (1) are welded, ZS-1 type high temperature resistant heat insulation coating with the thickness of 2-5 mm is respectively sprayed on the outer surfaces of the bottom ring, and the ablation of high temperature smoke on the outer surface of the bottom ring is reduced.
Example 2
In example 2, too, the cover plate (103) is removed in fig. 6 in order to clearly express the internal structure of the welded bottom ring (1); as shown in fig. 4, 5, 6, 7, 8 and 9, a combined water-cooled bottom ring for an submerged arc furnace is formed by combining 8 welded bottom rings (1), and the rest of the implementation is the same as that of embodiment 1, and will not be repeated here.
The above-described embodiment 1 and embodiment 2 are only typical embodiments of the present utility model, and not all embodiments; in practical application, the number of the welding bottom rings (1) forming the combined water-cooling bottom ring can be an integer between 4 and 8; in examples 1 and 2, the number of fin plates (105) is merely a requirement for showing the structure, and the number adopted in the embodiment is not limited to the number adopted in the drawings, and the optimal number is determined by theoretical calculation, experiment and experience.
The present utility model is not limited to the details of the conventional technology known to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which are made by those skilled in the art without the exercise of inventive faculty, are intended to be included in the scope of the present utility model.
Claims (6)
1. The utility model provides a hot stove in ore deposit is with combination formula water-cooling bottom ring which characterized in that: each welding bottom ring (1) comprises a bottom plate (101), an outer ring arc-shaped plate (102), a cover plate (103), a baffle (104), a fin plate (105), an inner ring arc-shaped plate (106), lifting lugs (107), a cooling water interface 1 (108) and a cooling water interface 2 (109); the bottom plate (101), the outer ring arc-shaped plate (102), the cover plate (103), the fin plate (105), the inner ring arc-shaped plate (106) and the lifting lug (107) are welded together to form a cooling water channel; the cooling water interface 1 (108) and the cooling water interface 2 (109) are respectively welded at the two ends of the cover plate (103) close to the lifting lug; the arc-shaped baffle plate (104) is welded on the upper surface of the cover plate (103).
2. The combined water-cooled bottom ring for a submerged arc furnace of claim 1, wherein: all the component parts of the welding bottom ring (1) are made of austenitic stainless steel material 06Cr25Ni 20.
3. The combined water-cooled bottom ring for a submerged arc furnace of claim 1, wherein: the bottom surface of the fin plate (105) is welded with the upper surface of the bottom plate (101), one side elevation of the fin plate (105) is welded with the inner cambered surface of the outer ring arc-shaped plate (102) or the outer cambered surface of the inner ring arc-shaped plate (106), and the other side elevation of the fin plate (105) is a free side elevation.
4. A combined water cooled bottom ring for a submerged arc furnace according to claim 1 or 3, characterized in that: the upper surface of the fin plate (105) and the lower surface of the cover plate (103) are not welded, and the maximum distance between the two surfaces is 1mm; a rectangular-section cooling water channel is formed between the free side elevation of the fin plate (105) and the outer cambered surface of the opposite inner annular arc-shaped plate (106) and the inner cambered surface of the outer annular arc-shaped plate (102) and between the upper surface of the bottom plate (101) and the lower surface of the cover plate (103), and the cross section of the cooling water channel is not smaller than the cross section of the cooling water interface 1 (108) and the cross section of the cooling water interface 2 (109).
5. A combined water cooled bottom ring for a submerged arc furnace according to claim 1 or 3, characterized in that: the fin plates (105) are staggered in the welding bottom ring (1), and one side elevation of each adjacent fin plate (105) is welded on the inner cambered surface of the outer ring arc-shaped plate (102) or the outer cambered surface of the inner ring arc-shaped plate (106) respectively.
6. The combined water-cooled bottom ring for a submerged arc furnace of claim 1, wherein: the external surfaces of the bottom plate (101), the inner ring arc plate (106) and the outer ring arc plate (102) of the welding bottom ring (1) are respectively sprayed with ZS-1 type high temperature resistant heat insulation paint with the thickness of 2-5 mm at 2000 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321240850.XU CN220083700U (en) | 2023-05-22 | 2023-05-22 | Combined water-cooling bottom ring for submerged arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321240850.XU CN220083700U (en) | 2023-05-22 | 2023-05-22 | Combined water-cooling bottom ring for submerged arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220083700U true CN220083700U (en) | 2023-11-24 |
Family
ID=88814352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321240850.XU Active CN220083700U (en) | 2023-05-22 | 2023-05-22 | Combined water-cooling bottom ring for submerged arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220083700U (en) |
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2023
- 2023-05-22 CN CN202321240850.XU patent/CN220083700U/en active Active
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