CN220951868U - Blast furnace tapping major groove water cooling plant - Google Patents
Blast furnace tapping major groove water cooling plant Download PDFInfo
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- CN220951868U CN220951868U CN202322436919.2U CN202322436919U CN220951868U CN 220951868 U CN220951868 U CN 220951868U CN 202322436919 U CN202322436919 U CN 202322436919U CN 220951868 U CN220951868 U CN 220951868U
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- 238000001816 cooling Methods 0.000 title claims abstract description 176
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000000498 cooling water Substances 0.000 claims description 67
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000011819 refractory material Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 10
- 238000003723 Smelting Methods 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 39
- 229910052742 iron Inorganic materials 0.000 description 20
- 239000002893 slag Substances 0.000 description 11
- 238000005192 partition Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 8
- 230000003628 erosive effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The application relates to a blast furnace tapping channel water cooling device, which relates to the technical field of steel smelting and aims to solve the problem that the service life of refractory materials of a lining of a tapping channel is influenced by a height Wen Tiezha. The application has the effect of prolonging the service life of the blast furnace tapping main runner.
Description
Technical Field
The application relates to the technical field of steel smelting, in particular to a blast furnace tapping main runner water cooling device.
Background
The blast furnace tapping main channel is a channel for high-temperature molten iron and slag to flow out from a tap hole, and is also a place for slag-iron separation, the structure of the blast furnace tapping main channel is divided into three layers, namely a working layer in direct contact with the high-temperature slag iron, a permanent layer below the working layer and an outermost steel shell; with the large-scale development of the blast furnace, the iron-passing time is prolonged, the iron-discharging interval time is shortened, and more severe requirements are put on the quality and the service life of an iron-discharging channel of the blast furnace.
In the prior art, when the blast furnace is tapping, the tapping main runner is required to bear the scouring of slag iron flow at the temperature of more than 1400 ℃ and also is required to bear the chemical erosion caused by high-temperature slag iron, so that the service life of refractory materials of lining of the molten iron runner is short, frequent maintenance and replacement are required, the maintenance cost is high, the continuity of the blast furnace production is influenced, and the improvement is needed.
Disclosure of utility model
The application provides a blast furnace tapping large-channel water cooling device, which aims to solve the problem that the service life of refractory materials in a molten iron channel lining is influenced by a height Wen Tiezha.
The application provides a blast furnace tapping main runner water cooling device which adopts the following technical scheme:
The utility model provides a blast furnace tapping major groove water cooling plant, includes a plurality of water-cooling plate bodies of arranging in the major groove steel casing outside of tapping, a plurality of water-cooling plate bodies arrange in proper order, every water-cooling cavity has all been seted up in the water-cooling plate body, be provided with a plurality of division boards in the water-cooling cavity, a plurality of the division boards are staggered in proper order, a plurality of be formed with between the division board and supply cooling water passageway, be provided with water inlet and delivery port on the water-cooling plate body, water inlet and delivery port all are linked together with the inside water-cooling cavity, still be provided with on the water-cooling plate body and be used for the water supply mouth with the water-cooling cavity intercommunication, the water supply mouth is arranged in cooling water passageway's middle section department, be provided with the water supply mechanism that is used for supplying with cooling water on the water-cooling plate body.
When the blast furnace is tapping, the tapping main runner is required to bear the scouring of slag iron flow at the temperature of more than 1400 ℃ and also is required to bear the chemical erosion caused by high-temperature slag iron, so that the service life of refractory materials of lining of the blast furnace is short, frequent maintenance and replacement are required, the maintenance cost is high, and the continuity of the blast furnace production is affected; by adopting the technical scheme, when the water cooling device works, the water supply mechanism conveys cooling water to the water inlet of the water cooling plate body, the cooling water flows along the cooling water channel formed by the partition plates, the cooling water continuously absorbs heat to the tapping main runner, meanwhile, part of the cooling water flows into the cooling water channel from the water supply port, is continuously neutralized and cooled with the cooling water after absorbing heat, and finally the cooling water after absorbing heat flows out from the water outlet and circularly flows; through the setting of a plurality of water-cooling plate bodies, the water-cooling cavity, division board and water supply mouth, the multiunit water-cooling plate body is arranged independently can guarantee when single water-cooling plate body breaks down, do not influence the cooling effect to the major trough of tapping, and convenient maintenance, the arrangement of water supply mouth makes the cooling effect stronger when cooling water circulates simultaneously, further restrain the expansion of the inside high temperature region scope of major trough refractory material of blast furnace tapping, restrict the possibility that high temperature slag iron permeated to refractory material in, slow down the erosion and the chemical attack of major trough of tapping, thereby prolong the major trough life-span of blast furnace tapping, reduce repair ditch frequency and ton iron refractory material consumption, reduce iron-making manufacturing cost, be favorable to improving smelting intensity, increase the number of times of tapping, improve the operational environment in cast house.
Optionally, the water supply mechanism includes cooling water main pipe and return manifold, each water inlet and each water supply mouth all communicate on the cooling water main pipe, each delivery port all communicates on the return manifold.
By adopting the technical scheme, the water supply mechanism consists of a cooling water main pipe and a return main pipe; when the cooling device works, the cooling water system of the blast furnace flows cooling water into the corresponding water cooling plates in sequence through the cooling water main pipe, the cooling water flows along the cooling water channel and absorbs heat continuously, and finally flows back into the cooling water system of the blast furnace through the return main pipe, so that cooling water circulation is realized; through cooling water house steward and return current house steward's setting, help realizing the synchronous supply to a plurality of water-cooling plate bodies, improve the stability of cooling water transportation process, and then guarantee the cooling effect to the tapping main shaft.
Optionally, a water-cooling branch pipe is arranged between the water inlet and the water supply port of each water-cooling plate body, the water-cooling branch pipes are respectively communicated with the water inlet and the inner wall of the water supply port, the water-cooling branch pipes are communicated with the cooling water header pipe, and the water outlet of each water-cooling plate body is provided with a backflow branch pipe communicated with the backflow header pipe.
By adopting the technical scheme, the water inlet ends of the water-cooling branch pipes are communicated with the cooling water main pipe, the water outlet ends of the water-cooling branch pipes are respectively communicated with the water inlet and the water supply port, the water inlet ends of the reflux branch pipes are communicated with the water outlet, and the water outlet ends of the reflux branch pipes are communicated with the reflux main pipe; through the setting of water-cooling branch pipe and backward flow branch pipe for water-cooling plate body water inlet and water supply port realize synchronous water intaking, make things convenient for the maintenance after water-cooling branch pipe or backward flow branch pipe damage simultaneously.
Optionally, any one of the water-cooling branch pipes is provided with a water-cooling valve for controlling the on-off of cooling water.
By adopting the technical scheme, the water-cooling valve is arranged on the water-cooling branch pipe; through the setting of water-cooling valve, can realize the control of cooling water break-make and flow size.
Optionally, the water inlet and the water supply port are both provided with connectors for being installed with the water-cooling branch pipes, and sealing rings are arranged between the connectors and the water-cooling branch pipes.
By adopting the technical scheme, the water inlet and the water supply port are integrally formed into the joint, the water outlet end of the water-cooling branch pipe is sleeved and fixed on the joint, and a sealing ring is arranged between the joint and the water-cooling branch pipe; through the setting of joint and sealing washer, help realizing the dismouting of water-cooling branch pipe, make things convenient for the change after the water-cooling branch pipe damages, easy dismounting, and the sealing washer has improved the leakproofness of water-cooling branch pipe and water inlet or water supply mouth installation, reduces the possibility that the seepage appears in the cooling water.
Optionally, the surface of any water-cooling branch pipe is provided with a high temperature resistant layer, and the high temperature resistant layer is coated on the outer wall of the water-cooling branch pipe.
By adopting the technical scheme, the surface of the water-cooling branch pipe is coated with the high-temperature resistant layer; through the design of high temperature resistant layer, can improve high temperature resistant ability for the water-cooling branch pipe, reduce the water-cooling branch pipe and leave the possibility that iron major groove is too nearly influenced water-cooling branch pipe life, reduce the change frequency of water-cooling branch pipe.
Optionally, a plurality of hanging boards are arranged on the outer wall of any water-cooling board body, a plurality of hanging boards are sequentially arranged on the water-cooling board body, and each hanging board is provided with a through hole for a bolt to pass through.
By adopting the technical scheme, the hanging plate is welded on the water-cooled plate body, and the hanging plate is provided with a through hole; through the setting of hanging board and through-hole, help realizing the fixed of water-cooling plate body and tapping major groove steel shell, fixed reliable reduces the risk that the water-cooling plate body drops from tapping major groove steel shell lateral wall.
Optionally, the length range of each water-cooling plate body is 1.2-1.5m, and the arrangement height of the water-cooling plate bodies is slightly lower than the height of the tapping main runner steel shell by 5-10cm.
By adopting the technical scheme, the length of the water-cooling plate body ranges from 1.2 m to 1.5m, and the arrangement height of the water-cooling plate body is 5 cm to 10cm lower than the height of the steel shell of the tapping main runner; through setting up of water-cooling plate body size and mounted position, can better adapt to with the installation of tapping major groove steel shell, the suitability is good.
In summary, the present application includes at least one of the following beneficial technical effects:
Through the arrangement of the plurality of water-cooling plate bodies, the water-cooling cavity, the partition plate and the water supply port, when a single water-cooling plate body fails, the cooling effect on the tapping main runner is not affected, and the maintenance is convenient;
Meanwhile, the arrangement of the water supply port enables the cooling effect to be stronger when cooling water circulates, further inhibits the expansion of the range of a high-temperature area inside the refractory material of the blast furnace tapping main runner, limits the possibility of penetration of high-temperature slag iron into the refractory material, and slows down the scouring erosion and chemical erosion of the tapping main runner, thereby prolonging the service life of the blast furnace tapping main runner, reducing the repairing frequency and the consumption of ton iron refractory material, lowering the iron-making production cost, and being beneficial to improving the smelting strength, increasing the tapping times and improving the operating environment of a tapping yard;
Through the setting of joint and sealing washer, help realizing the dismouting of water-cooling branch pipe, make things convenient for the change after the water-cooling branch pipe damages, easy dismounting, and the sealing washer has improved the leakproofness of water-cooling branch pipe and water inlet or water supply mouth installation, reduces the possibility that the seepage appears in the cooling water.
Drawings
FIG. 1 is a schematic diagram showing installation of a large iron runner and a water cooling device in the present embodiment.
FIG. 2 is a schematic diagram of a single water cooling device according to an embodiment of the present application.
FIG. 3 is a schematic diagram of a water cooling device for a blast furnace tapping runner in an embodiment of the application.
Reference numerals illustrate: 1. a water-cooling plate body; 2. a water-cooling chamber; 3. a partition plate; 4. a cooling water passage; 5. a water inlet; 51. a joint; 52. a seal ring; 6. a water outlet; 7. a water supply port; 8. a water supply mechanism; 81. a cooling water header pipe; 82. a return header; 9. a water-cooling branch pipe; 91. a water-cooling valve; 92. a high temperature resistant layer; 10. a return branch pipe; 11. a hanging plate; 111. a through hole; 12. tapping the steel shell of the major trough; 13. a working layer; 14. a permanent layer; 15. high temperature slag iron.
Description of the embodiments
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses a blast furnace tapping main runner water cooling device. Referring to fig. 1, the blast furnace tapping gutter water cooling device comprises a plurality of water cooling plate bodies 1, in this embodiment, the plurality of water cooling plate bodies 1 are sequentially attached to the outer wall of a tapping gutter steel shell 12, and the plurality of water cooling plate bodies 1 are sequentially arranged along the length direction of the outer wall of the tapping gutter steel shell 12, the structure of the blast furnace tapping gutter is divided into three layers, a working layer 13 in direct contact with high-temperature slag iron 15, a permanent layer 14 below the working layer 13, and the outermost tapping gutter steel shell 12, the materials of the working layer 13 and the permanent layer 14 are all a10-SiC-C castable.
Referring to fig. 1, each water-cooling plate body 1 is made of metal, the length of the water-cooling plate body 1 ranges from 1.2m to 1.5m, the length of the water-cooling plate body 1 is preferably 1.2m, the arrangement height of the water-cooling plate body 1 in the embodiment is slightly lower than the height of the steel shell 12 of the tapping main runner by 5 cm to 10cm, and the number of the water-cooling plate bodies 1 is determined according to the length of the tapping main runner until the water-cooling plate body 1 is paved at a position 2m to 3m away from the skimming device.
Referring to fig. 2, a plurality of hanging boards 11 are welded and fixed on any water-cooling board body 1, in this embodiment, the number of hanging boards 11 on the water-cooling board body 1 is two, two hanging boards 11 are oppositely arranged on the water-cooling board body 1, through holes 111 are all formed in each hanging board 11 in a penetrating way, in this embodiment, the through holes 111 can be used for bolts to pass through, so that the water-cooling board body 1 and the tapping large-ditch steel shell 12 can be fixed, the fixing is reliable, and the risk that the water-cooling board body 1 falls off from the side wall of the tapping large-ditch steel shell 12 is reduced.
Referring to fig. 2, a water cooling chamber 2 is formed in any water cooling plate body 1, a plurality of partition boards 3 are fixedly installed in the water cooling chamber 2, in this embodiment, the partition boards 3 are divided into two groups, two groups of partition boards 3 are respectively fixed on the top wall and the bottom wall of the water cooling chamber 2, and the two groups of partition boards 3 are sequentially staggered along the length direction of the water cooling plate body 1, cooling water channels 4 are formed in the water cooling chamber 2 by the two groups of partition boards 3, in this embodiment, the cooling water channels 4 can be in a continuous bending structure, and the cooling water channels 4 enable cooling water to flow in an S shape.
Referring to fig. 2, a water inlet 5 and a water outlet 6 are formed in any water-cooling plate body 1, the water inlet 5 and the water outlet 6 are both communicated in the water-cooling chamber 2, the water inlet 5 and the water outlet 6 are respectively arranged at two sides of the water-cooling plate body 1, a water supply port 7 is further formed in the water-cooling plate body 1, the water supply port 7 is communicated with the inside of the water-cooling chamber 2, the water supply port 7 is arranged at the middle section of the water-cooling plate body 1 in this embodiment, and part of cooling water starts to flow from the middle section of the cooling water channel 4 through the water supply port 7, so that cooling water after heat absorption is performed in the cooling water channel 4 after flowing from the water inlet 5 is neutralized, and the cooling effect is stronger when the cooling water circulates.
Referring to fig. 2 and 3, water supply mechanism 8 is installed jointly on a plurality of water-cooling plate bodies 1, water supply mechanism 8 includes cooling water house steward 81 and return line 82, cooling water house steward 81 is connected on the cooling water system of blast furnace, need not to additionally set up the water source, the intercommunication has a plurality of water-cooling branch pipes 9 on the cooling water house steward 81, the quantity of a plurality of water-cooling branch pipes 9 is unanimous with the quantity of water-cooling plate bodies 1, the water inlet end demountable installation of water-cooling branch pipe 9 is on cooling water house steward 81, water-cooling branch pipe 9 has two water outlet ends in this embodiment, two water outlet ends are linked together with water inlet 5 and water supply mouth 7 respectively, the uniformly has joint 51 on water inlet 5 and the water supply mouth 7, water-cooling branch pipe 9 cup joints and fixes on joint 51, and install sealing washer 52 between joint 51 and the water-cooling branch pipe 9 for the dismouting of realizing water-cooling branch pipe 9, make things convenient for the change after the water-cooling branch pipe 9 damages, easy dismounting, and sealing washer 52 has improved the leakproofness of water-cooling branch pipe 9 and water inlet 5 or water supply mouth 7 installation, the possibility that the seepage appears.
Referring to fig. 2 and 3, a water-cooling valve 91 is installed on the water-cooling branch pipe 9, the water-cooling valve 91 is used for controlling on-off of cooling water, and a high temperature resistant layer 92 is coated on the outer wall of the water-cooling branch pipe 9, in this embodiment, the high temperature resistant layer 92 can be made of rock wool material and is used for improving high temperature resistance of the water-cooling branch pipe 9, reducing the possibility that the service life of the water-cooling branch pipe 9 is influenced by the fact that the water-cooling branch pipe 9 is too close to a major iron runner, and reducing the replacement frequency of the water-cooling branch pipe 9.
Referring to fig. 2 and 3, a backflow branch pipe 10 is detachably installed between the water outlet 6 of each water-cooling plate body 1 and the backflow main pipe 82, in this embodiment, the corresponding joint 51 is integrally formed at the water outlet 6, one end of the backflow branch pipe 10 is communicated with the water outlet 6, the other end of the backflow branch pipe 10 is communicated with the backflow main pipe 82, and the backflow main pipe 82 is connected with a cooling water system of the blast furnace so as to realize circulation of cooling water.
The embodiment of the application relates to a blast furnace tapping main runner water cooling device, which comprises the following implementation principles: when the water cooling device works, cooling water is conveyed by the blast furnace cooling water system through the cooling water main pipe 81, flows into the plurality of water cooling branch pipes 9 in sequence, opens the water cooling valve 91, flows into the water cooling cavity 2 from the water inlet 5 through the water cooling branch pipes 9, flows along the cooling water channel 4 formed by the partition plate 3, continuously absorbs heat of the tapping main channel, and meanwhile, part of cooling water flows into the cooling water channel 4 from the water supply port 7, continuously neutralizes and cools the cooling water after heat absorption, finally flows out from the reflux branch pipes 10, flows back into the blast furnace cooling water system after heat absorption through the reflux main pipe 82 in a converging manner, and realizes cooling water circulation; through the setting of a plurality of water-cooling plate bodies 1, water-cooling cavity 2, division board 3 and water supply port 7, when multiunit water-cooling plate body 1 independent arrangement can guarantee that single water-cooling plate body 1 breaks down, do not influence the cooling effect to the major trough of tapping, and convenient maintenance, the cooling effect is stronger when the water supply mouth 7's arrangement makes the cooling water circulation simultaneously, further restrain the expansion of the inside high temperature area scope of major trough refractory material of blast furnace tapping, limit the possibility that high temperature slag iron 15 permeated into refractory material, slow down the erosion and the chemical attack of major trough of tapping, thereby extension blast furnace tapping major trough life-span, reduce repair ditch frequency and ton iron refractory material consumption, reduce ironmaking manufacturing cost, be favorable to improving smelting intensity, increase the number of times of tapping, improve the operational environment in cast house.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A blast furnace tapping major trough water cooling plant, characterized in that: including a plurality of water-cooling plate body (1) of arranging in the major groove steel shell outside of tapping, a plurality of water-cooling plate body (1) arrange in proper order and arrange, every water-cooling chamber (2) have all been seted up in water-cooling plate body (1), be provided with a plurality of division boards (3) in water-cooling chamber (2), a plurality of division boards (3) are crisscross arranged in proper order, a plurality of be formed with between division boards (3) and supply cooling water passageway (4), be provided with water inlet (5) and delivery port (6) on water-cooling plate body (1), water inlet (5) and delivery port (6) all are linked together with water-cooling chamber (2) inside, still be provided with on water-cooling plate body (1) be used for with water supply mouth (7) of water-cooling chamber (2) intercommunication, water supply mouth (7) are arranged in cooling water passageway (4) middle section department, be provided with on water-cooling plate body (1) and be used for supplying with cooling water supply mechanism (8).
2. The blast furnace tapping main runner water cooling device according to claim 1, wherein: the water supply mechanism (8) comprises a cooling water main pipe (81) and a backflow main pipe (82), each water inlet (5) and each water supply port (7) are communicated with the cooling water main pipe (81), and each water outlet (6) is communicated with the backflow main pipe (82).
3. The blast furnace tapping main runner water cooling device according to claim 2, wherein: each water-cooling branch pipe (9) is arranged between the water inlet (5) and the water supply port (7) of the water-cooling plate body (1), the water-cooling branch pipes (9) are respectively communicated with the water inlet (5) and the inner wall of the water supply port (7), the water-cooling branch pipes (9) are communicated with the cooling water main pipe (81), and the water outlet (6) of each water-cooling plate body (1) is provided with a backflow branch pipe (10) communicated with the backflow main pipe (82).
4. A blast furnace tapping main shaft water cooling device according to claim 3, wherein: any water-cooling branch pipe (9) is provided with a water-cooling valve (91) for controlling the on-off of cooling water.
5. A blast furnace tapping main shaft water cooling device according to claim 3, wherein: the water inlet (5) and the water supply port (7) are respectively provided with a joint (51) for being installed with the water-cooling branch pipe (9), and a sealing ring (52) is arranged between the joint (51) and the water-cooling branch pipe (9).
6. A blast furnace tapping main shaft water cooling device according to claim 3, wherein: any one of the surfaces of the water-cooling branch pipes (9) is provided with a high-temperature resistant layer (92), and the high-temperature resistant layer (92) is coated on the outer wall of the water-cooling branch pipe (9).
7. The blast furnace tapping main runner water cooling device according to claim 1, wherein: any one the outer wall of water-cooling plate body (1) is provided with a plurality of lifting plates (11), and a plurality of lifting plates (11) are arranged on the water-cooling plate body (1) in proper order, and each lifting plate (11) is provided with a through hole (111) for a bolt to pass through.
8. The blast furnace tapping main runner water cooling device according to claim 1, wherein: the length of each water-cooling plate body (1) ranges from 1.2 m to 1.5m, and the arrangement height of the water-cooling plate bodies (1) is 5 cm to 10cm lower than the height of the tapping main runner steel shell (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322436919.2U CN220951868U (en) | 2023-09-08 | 2023-09-08 | Blast furnace tapping major groove water cooling plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322436919.2U CN220951868U (en) | 2023-09-08 | 2023-09-08 | Blast furnace tapping major groove water cooling plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220951868U true CN220951868U (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322436919.2U Active CN220951868U (en) | 2023-09-08 | 2023-09-08 | Blast furnace tapping major groove water cooling plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220951868U (en) |
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2023
- 2023-09-08 CN CN202322436919.2U patent/CN220951868U/en active Active
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