CN219824256U - Water cooling device for gun nozzle of blast furnace mud gun machine - Google Patents
Water cooling device for gun nozzle of blast furnace mud gun machine Download PDFInfo
- Publication number
- CN219824256U CN219824256U CN202321285032.1U CN202321285032U CN219824256U CN 219824256 U CN219824256 U CN 219824256U CN 202321285032 U CN202321285032 U CN 202321285032U CN 219824256 U CN219824256 U CN 219824256U
- Authority
- CN
- China
- Prior art keywords
- protection pad
- cooling water
- blast furnace
- water inlet
- gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 239000000498 cooling water Substances 0.000 claims description 110
- 239000000463 material Substances 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 76
- 229910052742 iron Inorganic materials 0.000 description 38
- 230000000903 blocking effect Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 239000002893 slag Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000013016 damping Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model relates to a water cooling device of a gun nozzle of a blast furnace gun machine, which relates to the technical field of steel smelting and aims to solve the problem that the gun nozzle is easy to burn when a tap hole is continuously plugged. The utility model has the effect of prolonging the service life of the gun nozzle.
Description
Technical Field
The utility model relates to the technical field of steel smelting, in particular to a water cooling device for a gun nozzle of a blast furnace mud gun machine.
Background
The iron works in iron and steel enterprises mainly produce blast furnaces, and the mud cannon is a key device for blast furnace production, belongs to necessary stokehole equipment in the smelting industry, and has the function of rapidly and accurately blocking a tap hole after iron discharge, so that the blast furnace rapidly enters the next circulation operation, and various iron notch blocking machines developed in the production practice are divided into a pneumatic mud cannon, an electric mud cannon and a hydraulic mud cannon according to the power types of the iron notch blocking machines, and the electric mud cannon and the hydraulic mud cannon are mainly adopted in production.
The operation of the iron notch blocking of the modern blast furnace hydraulic mud gun machine enables the gun nozzle to be in direct contact with the iron notch mud sleeve through the rotation of the hydraulic mud gun machine, and anhydrous stemming in a gun bore is pressed into the iron notch through pressure to complete iron blocking, so that the iron notch is blocked, the phenomenon that the iron notch is blocked once is unsuccessful due to the fact that the iron notch mud sleeve is not maintained in place in actual production is often caused, and the iron notch can be blocked successfully only through multiple times of blocking of the iron notch.
When the gun nozzle is in contact with the iron notch mud sleeve to seal the iron notch, the gun nozzle part of the hydraulic mud gun machine can be in direct contact with liquid slag iron and then is in contact with the iron notch mud sleeve, the time for the gun nozzle to contact with the liquid slag iron can be 3-5 seconds, the gun nozzle can be burnt by the liquid slag iron in the process, a large amount of manpower and material resources can be wasted when the gun nozzle is replaced during production, the influence on the production of a blast furnace is caused, and the blast furnace wind-reducing and blocking operation or the blast furnace damping down can be possibly caused, so that the blast furnace is to be improved.
Disclosure of Invention
The utility model provides a water cooling device for a blast furnace mud gun machine gun nozzle, which aims to solve the problem that the gun nozzle is easy to burn when a gun nozzle is continuously plugged.
The utility model provides a water cooling device for a gun nozzle of a blast furnace mud gun machine, which adopts the following technical scheme:
the utility model provides a water cooling plant of blast furnace mud gun machine big gun mouth, includes the protection pad cover, the protection pad cover sets up in mud gun machine big gun mouth department, the through-hole that supplies mud gun machine big gun mouth to spout is sheathe in the protection pad, the aperture of through-hole is the same with the export internal diameter of mud gun machine big gun mouth, the protection pad water cavity has been seted up to the inside protection pad cover, the protection pad water cavity sets up along protection pad cover circumferencial direction, be provided with cooling water inlet tube and cooling water outlet pipe on the protection pad cover respectively, the water inlet of cooling water inlet tube communicates to the cooling water cavity of mud gun machine, the delivery port of cooling water inlet tube communicates to the protection pad water cavity in, the delivery port of cooling water outlet pipe communicates to the cooling water cavity of mud gun machine in.
When the gun nozzle is in contact with the iron notch mud sleeve to seal the iron notch, the gun nozzle part of the hydraulic mud gun machine is in direct contact with the liquid slag iron and then is in contact with the iron notch mud sleeve, the time for the gun nozzle to contact with the liquid slag iron is 3-5 seconds, the gun nozzle is possibly burnt by the liquid slag iron in the process, a large amount of manpower and material resources are wasted when the gun nozzle is replaced during production, the blast furnace production is influenced in serious cases, and the blast furnace wind reducing and blocking operation or the blast furnace damping down can be possibly caused; through adopting the technical scheme, when the gun machine is used for plugging the iron notch, the protection pad sleeve on the gun nozzle of the gun machine is in contact with the iron notch mud sleeve, anhydrous stemming in the gun chamber is pressed into the iron notch through pressure, and if the iron notch is plugged unsuccessfully, the gun nozzle is plugged for multiple times, meanwhile, cooling water continuously flows out of the cooling water cavity of the gun machine, enters the protection pad water cavity through the cooling water inlet pipe, and flows back into the cooling water cavity through the cooling water outlet pipe after absorbing heat energy, so that the gun nozzle is cooled; through the setting of protection pad cover, protection pad water cavity, cooling water inlet tube and cooling water outlet pipe, prolonged the life of big gun mouth, avoided big gun mouth direct contact liquid slag iron, and the cooling water circulation is constantly cooled down big gun mouth ambient temperature, reduces big gun mouth and burns out the risk, has practiced thrift the cost of changing big gun mouth, has reduced because big gun mouth burns out and can not block up the iron notch and cause blast furnace wind-reducing closure or blast furnace damping down accident's emergence, helps providing important guarantee for the long-time use of blast furnace and the long period stability of iron notch.
Optionally, the circle center of the protection pad sleeve and the circle center of the gun nozzle of the gun machine are positioned on the same axis, and the diameter of the protection pad sleeve is consistent with the outer diameter of the gun nozzle of the gun machine.
By adopting the technical scheme, the diameter of the protection pad sleeve is consistent with the outer diameter of the gun nozzle of the mud gun machine, and the protection pad sleeve is fixed by spot welding; through the design to protection pad cover size and shape, be convenient for realize the dismouting to protection pad cover, easy dismounting.
Optionally, the protection pad sleeve is made of high temperature resistant materials, and the thickness of the protection pad sleeve is 50-70mm.
By adopting the technical scheme, the protection pad sleeve is made of high-temperature resistant materials; through the selection of protection pad cover material and thickness, help guaranteeing the high temperature resistant ability of protection pad cover, extension protection pad cover's life reduces mud gun machine shutoff iron notch's in-process protection pad cover and receives the phenomenon that the damage appears in the high temperature.
Optionally, the circulation diameter of the protection pad water cavity is 20mm, and the circulation height of the protection pad water cavity is half of the thickness of the protection pad sleeve.
Through adopting above-mentioned technical scheme, through the design of the inside protection pad water cavity size of protection pad cover, help being suitable for the cooling protection of mud gun machine big gun mouth of different models, guarantee the cooling effect when the inside cooling water circulation of protection pad cover.
Optionally, the protection pad cover is provided with water inlet pipe joint and outlet pipe joint respectively, water inlet pipe joint and outlet pipe joint all communicate to protection pad water cavity inside, cooling water inlet pipe and cooling water outlet pipe connect on water inlet pipe joint and outlet pipe joint respectively.
By adopting the technical scheme, the water inlet pipe joint and the water outlet pipe joint are arranged on the protection pad sleeve; through the setting of water inlet pipe joint and play water pipe joint, help making things convenient for the intercommunication of cooling water inlet tube and cooling water outlet pipe, convenient operation, it is firm to connect, and easily realizes the dismouting.
Optionally, the cooling water inlet pipe and the cooling water outlet pipe are both provided with flanges for fixing, and the flanges are arranged outside the clay gun machine.
By adopting the technical scheme, the cooling water inlet pipe and the cooling water outlet pipe are respectively provided with the flange plates; through the setting of ring flange, help realizing the fixed to cooling water inlet tube and cooling water outlet pipe, reduce cooling water inlet tube and cooling water outlet pipe and receive external force to appear rocking or vibrations's possibility, improved the stability of cooling water inlet tube and cooling water outlet pipe installation.
Optionally, the inner diameters of the cooling water inlet pipe and the cooling water outlet pipe are 17-19mm, and the cooling water inlet pipe and the cooling water outlet pipe are all shock-absorbing metal hoses.
By adopting the technical scheme, the cooling water inlet pipe and the cooling water outlet pipe both adopt vibration absorption type metal hoses; through the selection of the cooling water inlet pipe and the cooling water outlet pipe, the metal hose can absorb vibration generated by impact during plugging and can also absorb noise generated by fluid pulsation in the pipe body.
Optionally, the water inlet of the cooling water inlet pipe and the water outlet of the cooling water outlet pipe are respectively provided with a quick connector communicated with a pipeline in the cooling water cavity of the clay gun machine.
By adopting the technical scheme, the water inlet of the cooling water inlet pipe and the water outlet of the cooling water outlet pipe are respectively provided with a quick connector; through quick-operation joint's setting, help guaranteeing the quick-operation intercommunication of cooling water inlet tube and cooling water outlet pipe and mud gun machine cooling water intracavity pipeline, and connect reliable and stable.
In summary, the present utility model includes at least one of the following beneficial technical effects:
through the arrangement of the protection pad sleeve, the protection pad water cavity, the cooling water inlet pipe and the cooling water outlet pipe, the service life of the gun nozzle is prolonged, the gun nozzle is prevented from being directly contacted with liquid slag iron, the cooling water is circulated to continuously cool the surrounding temperature of the gun nozzle, the risk of gun nozzle burning is reduced, the cost of gun nozzle replacement is saved, the occurrence of blast furnace wind-reducing blocking or blast furnace damping-down accidents caused by the fact that a gun nozzle burning loss can not block a taphole is reduced, and important guarantee is provided for long-time use of the blast furnace and long-period stability of the taphole;
the material and the thickness of the protection pad sleeve are selected, so that the high temperature resistance of the protection pad sleeve is guaranteed, the service life of the protection pad sleeve is prolonged, and the phenomenon that the protection pad sleeve is damaged by high temperature in the process of plugging a tap hole by a mud gun machine is reduced;
through the selection of the cooling water inlet pipe and the cooling water outlet pipe, the metal hose can absorb vibration generated by impact during plugging and can also absorb noise generated by fluid pulsation in the pipe body.
Drawings
Fig. 1 is a schematic structural view of a water cooling device for a gun nozzle of a blast furnace mud gun machine in an embodiment of the utility model.
Fig. 2 is a cross-sectional view of a protective padded sleeve in an embodiment of the utility model.
Fig. 3 is a top view of a protective padded sleeve in an embodiment of the utility model.
Reference numerals illustrate: 1. a protective pad sleeve; 2. a gun nozzle; 3. a through hole; 4. a protection pad water cavity; 5. a cooling water inlet pipe; 6. a cooling water outlet pipe; 7. a cooling water cavity; 8. a water inlet pipe joint; 9. a water outlet pipe joint; 10. a flange plate; 11. a quick connector.
Description of the embodiments
The utility model is described in further detail below with reference to fig. 1-3.
The embodiment of the utility model discloses a water cooling device for a gun nozzle of a blast furnace mud gun machine. Referring to fig. 1, the water cooling device of the gun nozzle of the blast furnace gun machine comprises a protection pad sleeve 1, the protection pad sleeve 1 is welded and fixed at the gun nozzle 2 of the gun machine in a spot welding mode, the protection pad sleeve 1 is made of a high-temperature-resistant material, the high-temperature-resistant capability is strong, the water cooling device can adapt to high temperature when the gun machine plugs a gun nozzle, the thickness range of the protection pad sleeve 1 is 50-70mm, the water cooling device can be selected according to gun machines of different models, and the preferable thickness size is 50mm.
Referring to fig. 1 and 2, the diameter of the protection pad sleeve 1 is consistent with the outer diameter of the gun nozzle 2 of the gun, the circle center of the protection pad sleeve 1 is located on the same axis at the circle center of the gun nozzle 2 of the gun, the protection pad sleeve 1 is provided with a through hole 3 in a penetrating way, the aperture of the through hole 3 is consistent with the inner diameter of the outlet of the gun nozzle 2 of the gun, and in the embodiment, the through hole 3 is used for the gun nozzle 2 of the gun to spray cement.
Referring to fig. 1 and 2, the protection pad water cavity 4 is formed inside the protection pad sleeve 1, the protection pad water cavity 4 is formed along the circumferential direction of the protection pad sleeve 1, the circulation diameter of the protection pad water cavity 4 is 20mm, the circulation height of the protection pad water cavity 4 is one half of the thickness of the protection pad sleeve 1, the design of the size of the protection pad water cavity 4 is suitable for cooling protection of gun nozzles 2 of gun machines of different types, the cooling effect of the protection pad sleeve 1 in the cooling water circulation is guaranteed, the sealing operation of the gun machines in the embodiment is improper, the protection pad sleeve 1 is burnt, a large amount of steam can be generated on site, effective early warning is realized, and larger equipment accidents are avoided.
Referring to fig. 1 and 3, a water inlet pipe joint 8 and a water outlet pipe joint 9 are installed on a protection pad sleeve 1, the water inlet pipe joint 8 and the water outlet pipe joint 9 are both communicated to the inside of a protection pad water cavity 4, in this embodiment, the water inlet pipe joint 8 and the water outlet pipe joint 9 are both inner and outer thread joints, a cooling water inlet pipe 5 is connected with threads of the water inlet pipe 8, the water outlet end of the cooling water inlet pipe 5 is communicated in the protection pad water cavity 4, the cooling water inlet pipe 5 extends along the cylinder direction of a mud gun machine, the water inlet end of the cooling water inlet pipe 5 is communicated with a cooling water cavity 7 in a mud beating mechanism of the mud gun machine, cooling water in the mud beating mechanism of the mud gun machine in this embodiment is conventionally arranged in the prior art, and a quick connector 11 is installed between a water inlet of the cooling water inlet pipe 5 and a pipeline of the cooling water cavity 7 of the mud gun machine.
Referring to fig. 1 and 3, a water outlet pipe joint 9 is in threaded connection with a cooling water outlet pipe 6, a water inlet end of the cooling water outlet pipe 6 is communicated with the protection pad water cavity 4, the cooling water outlet pipe 6 extends along the direction of a cylinder body of the gun machine, a water outlet end of the cooling water outlet pipe 6 is communicated with a cooling water cavity 7 in a gun beating mechanism of the gun machine, a quick connector 11 is installed between a water outlet of the cooling water outlet pipe 6 and a pipeline of the gun machine cooling water cavity 7, the quick connector 11 also adopts an inner thread connector and an outer thread connector in the embodiment, cooling water is circulated to absorb heat energy so as to reduce cooling around the gun nozzle 2, and the service life of the gun nozzle 2 is prolonged.
Referring to fig. 1, in this embodiment, the inner diameters of the cooling water inlet pipe 5 and the cooling water outlet pipe 6 are 17-19mm, preferably the inner diameter of the pipe is 17mm, and the cooling water inlet pipe 5 and the cooling water outlet pipe 6 both use vibration-absorbing metal hoses, so that vibration generated by impact during plugging can be effectively absorbed, and noise generated by fluid pulsation in the pipe body can be absorbed.
Referring to fig. 1, the flange plate 10 is installed on both the cooling water inlet pipe 5 and the cooling water outlet pipe 6, and the flange plate 10 is sleeved and arranged outside the clay gun machine, so as to fix the cooling water inlet pipe 5 and the cooling water outlet pipe 6, reduce the possibility that the cooling water inlet pipe 5 and the cooling water outlet pipe 6 are shaken or vibrated by external force, and improve the installation stability of the cooling water inlet pipe 5 and the cooling water outlet pipe 6.
The implementation principle of the water cooling device of the blast furnace mud gun nozzle of the blast furnace mud gun machine provided by the embodiment of the utility model is as follows: when the gun machine is used for plugging a taphole, the hydraulic gun machine is operated to rotate to enable the protection pad sleeve 1 on the gun nozzle 2 to be in contact with the taphole mud, at the moment, the outlet of the gun nozzle 2 is aligned with the corresponding taphole, anhydrous gun mud in the gun chamber is pressed into the taphole through pressure, if the taphole is plugged unsuccessfully, the gun nozzle is plugged for multiple times, meanwhile, cooling water continuously flows out of the cooling water cavity 7 of the gun machine, enters the protection pad water cavity 4 through the cooling water inlet pipe 5, and flows back into the cooling water cavity 7 through the cooling water outlet pipe 6 after absorbing heat energy, so that the gun nozzle 2 is cooled; through the setting of protection pad cover 1, protection pad water cavity 4, cooling water inlet tube 5 and cooling water outlet pipe 6, prolonged the life of big gun mouth 2, avoid big gun mouth 2 direct contact liquid slag iron, and the cooling water circulation is constantly cooled down big gun mouth 2 ambient temperature, reduce big gun mouth 2 and burn out the risk, practiced thrift the cost of changing big gun mouth 2, reduced because big gun mouth 2 burns out the emergence that the loss can not block up the iron notch and cause blast furnace damping down to be blocked up or blast furnace damping down accident, help for the long-time use of blast furnace and the long period stability of iron notch provide important guarantee.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. A water cooling device of a blast furnace mud gun machine gun nozzle is characterized in that: including protection pad cover (1), protection pad cover (1) sets up in mud gun machine big gun mouth (2) department, through-hole (3) that supply mud gun machine big gun mouth (2) to spout have been run through on protection pad cover (1), the aperture of through-hole (3) is the same with the export internal diameter of mud gun machine big gun mouth (2), protection pad water cavity (4) have been seted up to protection pad cover (1) inside, protection pad water cavity (4) are along protection pad cover (1) circumferencial direction setting, be provided with cooling water inlet tube (5) and cooling water outlet pipe (6) on protection pad cover (1) respectively, in cooling water inlet tube (5) water inlet communicates to mud gun machine's cooling water cavity (7), in cooling water inlet tube (5)'s delivery port communicates to protection pad water cavity (4), in cooling water outlet pipe (6) water inlet communicates to protection pad water cavity (4), in cooling water outlet tube (6) water outlet communicates to mud gun machine's cooling water cavity (7).
2. The water cooling device for a blast furnace mud gun nozzle of a blast furnace mud gun machine according to claim 1, wherein: the center of the protection pad sleeve (1) and the center of the gun nozzle (2) of the clay gun machine are positioned on the same axis, and the diameter of the protection pad sleeve (1) is consistent with the outer diameter of the gun nozzle (2) of the clay gun machine.
3. The water cooling device for a blast furnace mud gun nozzle of a blast furnace mud gun machine according to claim 1, wherein: the protection pad sleeve (1) is made of high-temperature resistant materials, and the thickness of the protection pad sleeve (1) is 50-70mm.
4. A water cooling device for a blast furnace mud gun nozzle according to claim 3, wherein: the circulation diameter of the protection pad water cavity (4) is 20mm, and the circulation height of the protection pad water cavity (4) is half of the thickness of the protection pad sleeve (1).
5. The water cooling device for a blast furnace mud gun nozzle of a blast furnace mud gun machine according to claim 1, wherein: the protection pad cover (1) is provided with a water inlet pipe joint (8) and a water outlet pipe joint (9) respectively, the water inlet pipe joint (8) and the water outlet pipe joint (9) are both communicated to the inside of the protection pad water cavity (4), and the cooling water inlet pipe (5) and the cooling water outlet pipe (6) are connected to the water inlet pipe joint (8) and the water outlet pipe joint (9) respectively.
6. The water cooling device for a blast furnace mud gun nozzle of a blast furnace mud gun machine according to claim 1, wherein: the cooling water inlet pipe (5) and the cooling water outlet pipe (6) are both provided with a flange plate (10) for fixing, and the flange plate (10) is arranged outside the mud gun machine.
7. The water cooling device for a blast furnace mud gun nozzle of a blast furnace mud gun machine according to claim 1, wherein: the inner diameters of the cooling water inlet pipe (5) and the cooling water outlet pipe (6) are 17-19mm, and the cooling water inlet pipe (5) and the cooling water outlet pipe (6) are all shock-absorbing metal hoses.
8. The water cooling device for a blast furnace mud gun nozzle of a blast furnace mud gun machine according to claim 1, wherein: the water inlet of the cooling water inlet pipe (5) and the water outlet of the cooling water outlet pipe (6) are respectively provided with a quick connector (11) which is communicated with the inner pipeline of the cooling water cavity (7) of the clay gun machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321285032.1U CN219824256U (en) | 2023-05-25 | 2023-05-25 | Water cooling device for gun nozzle of blast furnace mud gun machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321285032.1U CN219824256U (en) | 2023-05-25 | 2023-05-25 | Water cooling device for gun nozzle of blast furnace mud gun machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219824256U true CN219824256U (en) | 2023-10-13 |
Family
ID=88250140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321285032.1U Active CN219824256U (en) | 2023-05-25 | 2023-05-25 | Water cooling device for gun nozzle of blast furnace mud gun machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219824256U (en) |
-
2023
- 2023-05-25 CN CN202321285032.1U patent/CN219824256U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202849452U (en) | Coal oxidation lance in taphole of blast furnace | |
| CN219824256U (en) | Water cooling device for gun nozzle of blast furnace mud gun machine | |
| CN104551525A (en) | Processing method used after cracking of furnace shell of blast furnace | |
| CN104048304A (en) | Horizontal spiral tube roller slag cooler | |
| CN215668077U (en) | Iron mouth oxygen lance for Ou smelting furnace | |
| CN201694993U (en) | Telescoping water-cooling cooler | |
| CN210826225U (en) | Blast furnace stave sleeve pipe coal gas plugging device | |
| CN102329907B (en) | Novel clamp for sealing of hot-blast valve flange and using method thereof | |
| CN109079292A (en) | A kind of cooling combustion gas steel pipe repairing welding method with pressure of pressure | |
| CN210237659U (en) | Blast furnace cooling device | |
| CN210481422U (en) | Temporary iron notch plugging device | |
| CN219301333U (en) | Heat-insulating flame-explosion-resistant impact electric furnace flue gas pipeline | |
| CN109777909B (en) | Reducing joint for flue of steel-making furnace | |
| CN207062310U (en) | Blast furnace blowing Fuel lance | |
| CN111322876A (en) | Multifunctional furnace wall epoxy ceramic carbon gun | |
| CN205371933U (en) | Take gas to repair gas piping device | |
| KR20000020765U (en) | Device for repairing the bottom brick of furnace bottom | |
| CN213295398U (en) | Novel metal hose assembly for repairing cooling wall | |
| CN210596126U (en) | Blast furnace material flushing device | |
| CN220249998U (en) | Smelting furnace combustor protection device | |
| CN216473310U (en) | High-temperature-resistant, corrosion-resistant and long-life oxygen lance nozzle | |
| CN110306001B (en) | Protective cover for cooling plate assembly of blast furnace | |
| CN218026179U (en) | Air port sleeve pressing and flow monitoring device | |
| CN219233951U (en) | Oxygen purging tool for ladle hot repair burning nozzle | |
| CN112342328B (en) | Blast furnace reinforced wear-resistant coal gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |