CN218842226U - Cooling device for blast furnace cooling wall - Google Patents
Cooling device for blast furnace cooling wall Download PDFInfo
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- CN218842226U CN218842226U CN202222882748.1U CN202222882748U CN218842226U CN 218842226 U CN218842226 U CN 218842226U CN 202222882748 U CN202222882748 U CN 202222882748U CN 218842226 U CN218842226 U CN 218842226U
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- 238000001816 cooling Methods 0.000 title claims abstract description 117
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 254
- 239000000725 suspension Substances 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 9
- 239000011449 brick Substances 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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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- Blast Furnaces (AREA)
Abstract
The utility model provides a cooling device of a blast furnace cooling wall, which comprises a cooling wall base body and a cooling pipe device; a Z-shaped water pipe placing cavity is formed in the surface of the cooling wall base body, and a left straight section water pipe placing cavity and a right straight section water pipe placing cavity are respectively formed in the left side and the right side of the Z-shaped water pipe placing cavity; the cooling pipe device comprises a Z-shaped water pipe arranged in the cavity of the Z-shaped water pipe, a left straight water pipe arranged in the cavity of the left straight water pipe, and a right straight water pipe arranged in the cavity of the right straight water pipe. Utilize the utility model discloses can solve prior art, the cooling device who adopts has that the cooling wall cooling water pipe centre-to-centre spacing is big, the cooling water yield is less, cooling wall operating temperature is higher, and the cooling effect is relatively poor, the cooling wall burns out easily, to the unfavorable scheduling problem of longevity of blast furnace.
Description
Technical Field
The utility model relates to a circulative cooling technical field specifically relates to a cooling device of blast furnace stave.
Background
Blast furnace cooling equipment is key equipment for ensuring that a blast furnace can resist heat flow invasion and mechanical wear under high-temperature conditions. Under the other same conditions of adopting the same cooling equipment body material, the same inner diameter of the cooling water pipe of the cooling wall and the like, the center distance of the cooling water pipe of the cooling wall is reduced, the specific surface area of the cooling wall is improved, the working temperature of the cooling wall is reduced, the sufficient cooling strength of the blast furnace is ensured, and the service life of the blast furnace is prolonged.
In the prior art, the cooling water pipe of the cooling wall of the blast furnace adopts a four-in four-out piping mode. In the use and production of the blast furnace, the cooling water pipe is a cooling wall with four-inlet and four-outlet piping mode, the center distance of the cooling water pipe of the cooling wall is larger, the cooling water quantity is less, the working temperature of the cooling wall is higher, the cooling effect is poorer, the cooling wall is easy to burn, and the long service life of the blast furnace is not favorable.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the present invention provides a cooling device for a cooling wall of a blast furnace, so as to solve the problems in the prior art that the adopted cooling device has the defects of large center distance of cooling water pipes of the cooling wall, less cooling water amount, higher working temperature of the cooling wall, poor cooling effect, easy burning of the cooling wall, unfavorable long service life of the blast furnace, etc.
The utility model provides a cooling device for blast furnace cooling wall, include: a stave base and a cooling pipe means; the surface of the cooling wall base body is provided with a Z-shaped water pipe placing cavity, and the left side and the right side of the Z-shaped water pipe placing cavity are respectively provided with a left straight section water pipe placing cavity and a right straight section water pipe placing cavity; the cooling pipe device comprises a Z-shaped water pipe arranged in the Z-shaped water pipe placing cavity, a left straight-section water pipe arranged in the left straight-section water pipe placing cavity and a right straight-section water pipe arranged in the right straight-section water pipe placing cavity; a water inlet and a water outlet are respectively arranged at the lower end and the upper end of the Z-shaped water pipe; the lower end and the upper end of the left straight section water pipe are respectively provided with a left water inlet pipe connector and a left water outlet pipe connector; and the lower end and the upper end of the right straight section water pipe are respectively provided with a right water inlet pipe connector and a right water outlet pipe connector.
In addition, the preferable structure is that the left straight-section water pipe placing cavity comprises a first straight-section water pipe placing cavity and a second straight-section water pipe placing cavity; the right straight-section water pipe placing cavity comprises a third straight-section water pipe placing cavity and a fourth straight-section water pipe placing cavity; the left straight-section water pipe comprises a first straight-section water pipe and a second straight-section water pipe which are respectively arranged in the first straight-section water pipe placing cavity and the second straight-section water pipe placing cavity; the right straight section water pipe comprises a third straight section water pipe and a fourth straight section water pipe which are respectively arranged in the third straight section water pipe placing cavity and the fourth straight section water pipe placing cavity.
Further, it is preferable that a stave fixing structure is provided on the stave base; the cooling wall fixing structure comprises a first upper bolt fixing hole and a first lower bolt fixing hole which are respectively arranged between the first straight-section water pipe placing cavity and the second straight-section water pipe placing cavity, and a second upper bolt fixing hole and a second lower bolt fixing hole which are respectively arranged between the third straight-section water pipe placing cavity and the fourth straight-section water pipe placing cavity; and fixing bolts are arranged in the first upper bolt fixing hole, the first lower bolt fixing hole, the second upper bolt fixing hole and the second lower bolt fixing hole.
In addition, the preferable structure is that the water inlet, the left water inlet pipe connecting port and the right water inlet pipe connecting port are respectively provided with a water inlet sleeve.
In addition, the preferable structure is that water outlet sleeves are respectively arranged at the water outlet, the left water outlet pipe connecting port and the right water outlet pipe connecting port.
In addition, the preferable structure is that the water inlet sleeve is connected with a circulating water inlet pipe; the water outlet sleeve is connected with a circulating water outlet pipe.
Further, it is preferable that the zigzag water tube housing chamber is provided in a middle portion of the surface of the stave base.
Further, it is preferable that a suspension structure is provided on the ceiling of the stave base.
Further, it is preferable that the suspension structure includes a suspension ring.
In addition, the hanging ring is preferably fixed to the top of the stave base by casting.
According to the technical scheme above, the utility model provides a cooling device of blast furnace stave, it places the chamber to set up the zigzag water pipe through the surface at the stave base member, it sets up the zigzag water pipe to place the intracavity at the zigzag water pipe, the left and right sides of placing the chamber at the zigzag water pipe sets up left straight section water pipe respectively and places chamber and right straight section water pipe and place the chamber, place chamber and right straight section water pipe and place the chamber and set up left straight section water pipe and right straight section water pipe respectively at left straight section water pipe, under other equivalent conditions such as the stave cooling water pipe internal diameter of adoption the same, compare in the cooling device of the four-in four-out piping that prior art adopted, can increase to five-in five-out pipings, effectively improve the cooling ratio surface area, thereby reduce stave operating temperature, reduce the cold side operating temperature of charcoal brick and reduce stave replacement cost, reach the life who improves the blast furnace, the blast furnace wind number of times has been reduced and the technological effect of improving blast furnace tapping productivity, design has very big reference and guides the value to be used for reference to the blast furnace stave.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
FIG. 1 is a schematic front view of a cooling apparatus for a stave cooler of a blast furnace according to an embodiment of the present invention;
FIG. 2 is a schematic side view showing a structure of a cooling apparatus for a stave cooler of a blast furnace according to an embodiment of the present invention;
FIG. 3 is a schematic front view of a four-inlet and four-outlet piping type cooling apparatus for a blast furnace used in the prior art;
fig. 4 is a schematic side view of a four-inlet four-outlet piping type blast furnace cooling device used in the prior art.
In the drawing, 1-stave base, 21-zigzag water pipe, 211-water inlet, 212-water outlet, 22-first straight water pipe, 221-first left water inlet pipe connector, 222-first left water outlet pipe connector, 23-second straight water pipe, 231-second left water inlet pipe connector, 232-second left water outlet pipe connector, 24-third straight water pipe, 241-first right water inlet pipe connector, 242-first right water outlet pipe connector, 25-fourth straight water pipe, 251-second right water inlet pipe connector, 252-second right water outlet pipe connector, 31-first upper bolt fixing hole, 32-first lower bolt fixing hole, 33-second upper bolt fixing hole, 34-second lower bolt fixing hole, 35-fixing bolt, 41-water inlet pipe, 42-water outlet pipe, and 5-hanging ring.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
To the aforesaid provide in prior art, the cooling device who adopts has that stave cooling water pipe centre-to-centre spacing is big, the cooling water yield is less, stave operating temperature is higher, and the cooling effect is relatively poor, the stave that burns out easily, to the unfavorable scheduling problem of longevity of blast furnace, the utility model provides a cooling device of blast furnace stave.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to illustrate the cooling device of the cooling wall of the blast furnace provided by the utility model, fig. 1 shows the front structure of the cooling device of the cooling wall of the blast furnace according to the embodiment of the utility model; fig. 2 shows a side structure of a cooling device for a blast furnace stave according to an embodiment of the present invention.
As shown in fig. 1 and fig. 2 together, the cooling device for the cooling wall of the blast furnace provided by the utility model comprises: a stave base 1 and a cooling pipe device; the surface of the cooling wall base body is provided with a Z-shaped water pipe placing cavity, and the left side and the right side of the Z-shaped water pipe placing cavity are respectively provided with a left straight section water pipe placing cavity and a right straight section water pipe placing cavity; the cooling pipe device comprises a Z-shaped water pipe 21 arranged in the Z-shaped water pipe placing cavity, a left straight section water pipe arranged in the left straight section water pipe placing cavity and a right straight section water pipe arranged in the right straight section water pipe placing cavity; a water inlet 211 and a water outlet 212 are respectively arranged at the lower end and the upper end of the Z-shaped water pipe; the lower end and the upper end of the left straight section water pipe are respectively provided with a left water inlet pipe connector and a left water outlet pipe connector; and the lower end and the upper end of the right straight section water pipe are respectively provided with a right water inlet pipe connector and a right water outlet pipe connector.
Set up the cavity is placed to the zigzag water pipe through the surface at stave base member 1, place the intracavity at the zigzag water pipe and set up zigzag water pipe 21, place the left and right sides in cavity at the zigzag water pipe and set up left straight section water pipe respectively and place the cavity and right straight section water pipe and place the cavity, place the cavity and right straight section water pipe at left straight section water pipe and set up left straight section water pipe and right straight section water pipe respectively, under other equal conditions such as adopt the same stave condenser tube internal diameter, compare in the cooling device of the four-in four-out piping that prior art adopted, can increase to the piping of five-in five-out, effectively improve the cooling specific surface area, thereby reduce stave operating temperature, reduce carbon brick cold side operating temperature and reduce stave replacement cost, reach the life who improves the blast furnace, the blast furnace number of times of blowing down has been reduced and the technical effect of improving blast furnace tapping productivity, but have very big reference and guide to use for reference to blast furnace stave design.
As a preferred scheme of the utility model, the left straight section water pipe placing cavity comprises a first straight section water pipe placing cavity and a second straight section water pipe placing cavity; the right straight-section water pipe placing cavity comprises a third straight-section water pipe placing cavity and a fourth straight-section water pipe placing cavity; the left straight section water pipe comprises a first straight section water pipe 22 and a second straight section water pipe 23 which are respectively arranged in the first straight section water pipe placing cavity and the second straight section water pipe placing cavity; the right straight-section water pipe comprises a third straight-section water pipe 24 and a fourth straight-section water pipe 25 which are respectively arranged in a third straight-section water pipe placing cavity and a fourth straight-section water pipe placing cavity.
As shown in fig. 3 and 4, under the same condition of the diameter, material, etc. of the cooling water pipe, the utility model discloses can be increasing a cooling water pipe, what prior art adopted at present is mostly the cooling device of four-in four-out formula piping, and the cooling water pipe centre-to-centre spacing is great, the cooling water yield is less to lead to the stave operating temperature higher, the cooling effect is relatively poor, easily burns out the stave, and unfavorable to the long-life of blast furnace. By adding the Z-shaped water pipe placing cavity and the Z-shaped water pipe 21, the existing four-inlet four-outlet type piping can be changed into five-inlet five-outlet type piping, so that the specific surface area of the cooling wall is improved by about 30%, the working temperature of the cooling wall is reduced, the working temperature of the cold surface of carbon bricks is reduced, the replacement cost of the cooling wall is reduced, and the service life of the blast furnace is prolonged.
A first left water inlet pipe connector 221 and a first left water outlet pipe connector 222 are respectively arranged at the lower end and the upper end of the first straight water pipe 22;
a second left water inlet pipe connecting port 231 and a second left water outlet pipe connecting port 232 are respectively arranged at the lower end and the upper end of the second straight section water pipe 23;
a first right water inlet pipe connector 241 and a first right water outlet pipe connector 242 are respectively arranged at the lower end and the upper end of the third straight-section water pipe 24;
a second right water inlet pipe connector 251 and a second right water outlet pipe connector 252 are respectively arranged at the lower end and the upper end of the fourth straight-section water pipe 25.
As a preferable scheme of the utility model, a cooling wall fixing structure is arranged on the cooling wall base body 1; the cooling wall fixing structure comprises a first upper bolt fixing hole 31 and a first lower bolt fixing hole 32 which are respectively arranged between a first straight water pipe placing cavity and a second straight water pipe placing cavity, and a second upper bolt fixing hole 33 and a second lower bolt fixing hole 34 which are respectively arranged between a third straight water pipe placing cavity and a fourth straight water pipe placing cavity; fixing bolts 35 are provided in the first upper bolt fixing hole 31, the first lower bolt fixing hole 32, the second upper bolt fixing hole 33, and the second lower bolt fixing hole 34.
In the process of installing the cooling stave, after the cooling stave base body 1 is hoisted in place, the cooling stave base body 1 is fixed on the blast furnace shell through the fixing bolt 35.
As a preferred scheme of the utility model, equally divide in water inlet 211, left water inlet connector and right water inlet connector department and do not be provided with into water jacket 41. The water inlet sleeve 41 is used for fixing and supporting a water inlet pipe of the cooling circulating water.
As an optimal scheme of the utility model, equally divide in delivery port 212, left outlet pipe connector and right outlet pipe connector and do not be provided with out water sleeve 42. The water outlet sleeve 42 is used for fixedly supporting a water outlet pipe of the cooling circulating water.
As a preferred scheme of the utility model, the water inlet sleeve 41 is connected with a circulating water inlet pipe; the water outlet sleeve 42 is connected with a circulating water outlet pipe. The cooling of the blast furnace cooling wall is realized through a circulating water inlet pipe and a circulating water outlet pipe.
As a preferred scheme of the utility model, Z font water pipe is placed the chamber and is set up at the middle part on the surface of stave base member 1. The straight section water pipes on the left and right sides are more reasonable in layout.
As a preferable aspect of the present invention, a suspension structure is provided on the top of the stave base 1. In the process of installing the cooling wall, the cooling wall base body 1 is hoisted through the suspension structure, and after the cooling wall base body is hoisted in place, the cooling wall base body 1 is fixed on a blast furnace shell through the bolt fixing holes in the cooling wall base body by using the fixing bolts 35. After the cooling wall is installed, the suspended structure is cut off by a cutting machine so as to install the next section of cooling wall.
In blast furnace production, carry out high-temperature physical and chemical reaction in the furnace body, blast furnace stave constantly carries out quick heat-conduction through the circulation of cooling water, the cooling water is intake from zigzag water pipe 21 lower extreme right, go out water from the upper end left side, first straight section water pipe 22, second straight section water pipe 23, third straight section water pipe 24 and fourth straight section water pipe 25 are all intake from the lower extreme, go out water from the upper end, five water pipes get into next section stave or directly get into the return water house steward and get back to and carry out the water supply of next round after the water pump room cooling after going out water.
As a preferred aspect of the present invention, the suspension structure includes a hanging ring 5. The suspension ring 5 is a conventional suspension structure.
As a preferable aspect of the present invention, the hanging ring 5 is fixed on the top of the stave base 1 by casting. The hoisting and hanging of the device are firmer.
Combine attached drawing 1 to attached drawing 4, the embodiment of the utility model provides a five advance five go out piping formula blast furnace stave's cooling device and prior art four advance four go out piping formula cooling device relatively, first straight water pipe 22, the straight water pipe 23 of second, third straight water pipe 24 and the straight water pipe 25 length of fourth shorten relatively, first straight water pipe 22, the upper end of the straight water pipe 23 of second shortens, the lower extreme of the straight water pipe 24 of third and the straight water pipe 25 of fourth shortens, increase fifth zigzag water pipe 21, stave cooling pipe four advance four go out piping mode and become stave cooling water pipe five advance five go out piping mode, fifth zigzag water pipe 21 has been increased, can effectively improve stave specific surface area, increase the cooling strength of blast furnace, improve technical effect such as blast furnace life.
According to the above-mentioned embodiment, the utility model provides a cooling device of blast furnace stave, it places the chamber to set up the zigzag water pipe through the surface at the stave base member, it sets up the zigzag water pipe to place the intracavity at the zigzag water pipe, the left and right sides of placing the chamber at the zigzag water pipe sets up left straight section water pipe respectively and places chamber and right straight section water pipe and place the chamber, place chamber and right straight section water pipe at left straight section water pipe and place the chamber and set up left straight section water pipe and right straight section water pipe respectively, under other equivalent conditions such as the same stave condenser tube internal diameter of adoption, compare in the cooling device of the four-in four-out piping that prior art adopted, can increase to five-in five-out pipings, effectively improve the cooling ratio surface area, thereby reduce stave operating temperature, reduce the cold side operating temperature of charcoal brick and reduce stave replacement cost, reach the life who improves the blast furnace, the blast furnace damping down number of times and the technological effect that improves blast furnace tapping has been reduced, have very big reference and guide to blast furnace stave design and have value for reference.
The cooling device of the blast furnace stave according to the present invention has been described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the cooling device for a cooling stave of a blast furnace according to the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (10)
1. A cooling apparatus for a stave cooler of a blast furnace, comprising: a stave base and a cooling pipe means; wherein,
the surface of the cooling wall base body is provided with a Z-shaped water pipe placing cavity, and the left side and the right side of the Z-shaped water pipe placing cavity are respectively provided with a left straight section water pipe placing cavity and a right straight section water pipe placing cavity;
the cooling pipe device comprises a Z-shaped water pipe arranged in the Z-shaped water pipe placing cavity, a left straight-section water pipe arranged in the left straight-section water pipe placing cavity and a right straight-section water pipe arranged in the right straight-section water pipe placing cavity;
a water inlet and a water outlet are respectively arranged at the lower end and the upper end of the Z-shaped water pipe; the lower end and the upper end of the left straight section water pipe are respectively provided with a left water inlet pipe connector and a left water outlet pipe connector; and the lower end and the upper end of the right straight section water pipe are respectively provided with a right water inlet pipe connector and a right water outlet pipe connector.
2. The cooling apparatus for a stave cooler of a blast furnace according to claim 1,
the left straight section water pipe placing cavity comprises a first straight section water pipe placing cavity and a second straight section water pipe placing cavity; the right straight-section water pipe placing cavity comprises a third straight-section water pipe placing cavity and a fourth straight-section water pipe placing cavity;
the left straight-section water pipe comprises a first straight-section water pipe and a second straight-section water pipe which are respectively arranged in the first straight-section water pipe placing cavity and the second straight-section water pipe placing cavity;
the right side straight section water pipe is including setting up respectively the third straight section water pipe and the fourth straight section water pipe that the intracavity was placed to the third straight section water pipe and fourth straight section water pipe are placed.
3. The cooling apparatus for a stave cooler of a blast furnace according to claim 2,
a cooling wall fixing structure is arranged on the cooling wall base body;
the cooling wall fixing structure comprises a first upper bolt fixing hole and a first lower bolt fixing hole which are respectively arranged between the first straight-section water pipe placing cavity and the second straight-section water pipe placing cavity, and a second upper bolt fixing hole and a second lower bolt fixing hole which are respectively arranged between the third straight-section water pipe placing cavity and the fourth straight-section water pipe placing cavity; and fixing bolts are arranged in the first upper bolt fixing hole, the first lower bolt fixing hole, the second upper bolt fixing hole and the second lower bolt fixing hole.
4. The cooling apparatus for a stave cooler of a blast furnace according to claim 1,
the water inlet, the left water inlet pipe connector and the right water inlet pipe connector are respectively provided with a water inlet sleeve.
5. The cooling apparatus for a stave cooler of a blast furnace according to claim 4,
and the water outlet, the left water outlet pipe connecting port and the right water outlet pipe connecting port are respectively provided with a water outlet sleeve.
6. The cooling apparatus for a stave cooler of a blast furnace according to claim 5,
the water inlet sleeve is connected with a circulating water inlet pipe;
the water outlet sleeve is connected with a circulating water outlet pipe.
7. The cooling apparatus for a stave cooler of a blast furnace according to claim 1,
the Z-shaped water pipe placing cavity is arranged in the middle of the surface of the cooling wall base body.
8. The cooling apparatus for a stave cooler of a blast furnace according to claim 1,
and a suspension structure is arranged on the top of the cooling wall base body.
9. The cooling apparatus for a stave cooler of a blast furnace according to claim 8,
the suspension structure includes a bail.
10. The cooling apparatus for a stave cooler of a blast furnace according to claim 9,
the hanging ring is fixed on the top of the cooling wall base body in a casting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222882748.1U CN218842226U (en) | 2022-10-31 | 2022-10-31 | Cooling device for blast furnace cooling wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222882748.1U CN218842226U (en) | 2022-10-31 | 2022-10-31 | Cooling device for blast furnace cooling wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218842226U true CN218842226U (en) | 2023-04-11 |
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ID=87292265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222882748.1U Active CN218842226U (en) | 2022-10-31 | 2022-10-31 | Cooling device for blast furnace cooling wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218842226U (en) |
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2022
- 2022-10-31 CN CN202222882748.1U patent/CN218842226U/en active Active
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