CN221421143U - Blast furnace slag runner end mouth sliding device - Google Patents
Blast furnace slag runner end mouth sliding device Download PDFInfo
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- CN221421143U CN221421143U CN202323514842.2U CN202323514842U CN221421143U CN 221421143 U CN221421143 U CN 221421143U CN 202323514842 U CN202323514842 U CN 202323514842U CN 221421143 U CN221421143 U CN 221421143U
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- water
- slag runner
- chute
- spout
- blast furnace
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- 239000002893 slag Substances 0.000 title claims abstract description 112
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000005507 spraying Methods 0.000 claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000008235 industrial water Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000008646 thermal stress Effects 0.000 abstract description 7
- 238000004880 explosion Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000011010 flushing procedure Methods 0.000 description 11
- 238000007599 discharging Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000110 cooling liquid Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008642 heat stress Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Landscapes
- Furnace Charging Or Discharging (AREA)
Abstract
The utility model discloses a blast furnace slag runner end mouth sliding device, which comprises: the chute comprises a chute body, wherein one end of the chute body is provided with a chute inlet, the other end of the chute body is provided with a chute outlet, and the chute inlet is used for being connected with a slag runner outlet; the spraying system is arranged at the outlet of the chute nozzle body; the spraying system comprises a spraying pipe and a water inlet pipe arranged on the spraying pipe, and a plurality of water spraying holes are formed in the spraying pipe; the cooling system is arranged inside the spout body and comprises a plurality of inner cavity water channels which are communicated with each other, and a water inlet and a water outlet of each inner cavity water channel are positioned on one side of the spout body. The utility model has good heat conducting performance, remarkably improves corrosion resistance and thermal stress deformation resistance, and avoids the possible explosion phenomenon of high-temperature slag in the discharge process.
Description
Technical Field
The utility model relates to the technical field of slag ditches, in particular to a blast furnace slag ditch end mouth sliding device.
Background
In blast furnace ironmaking production, high-temperature slag iron at 1480-1550 ℃ flows out through a tap hole, is separated by a slag skimmer at the tail end of a main blast furnace channel, molten iron flows to a ladle through a slag channel, slag flows to a water slag flushing system through the slag channel, and has a drop of about 1.2 m at the tail end of the slag channel and the front end of the slag flushing channel, and when falling to the bottommost part, the high-temperature slag is granulated and flushed by high-pressure water of the slag flushing system, and the production is circularly and reciprocally carried out continuously. However, the problem at present is that in the scouring of high-temperature slag at about 1500 ℃ for a long time at the tail end of a slag ditch, though high-strength refractory materials are poured and formed, continuous scouring erosion of the high-temperature slag rapidly reduces the service life under the action of thermal stress and acid-base corrosion, and the high-temperature slag is easy to adhere to an irregular supporting object at the tail end of the slag ditch due to different viscosity of the slag caused by different temperature and component content dynamic changes, so that the slag is in a fluffy state, the normal falling of the slag is influenced, or suddenly collapses after the adhesion becomes large, and large-area high-temperature slag falls to the slag flushing water surface to cause explosion, thereby seriously threatening the safety production. The existing solution is to use a waste tuyere medium sleeve of a blast furnace, place the waste tuyere medium sleeve at the end part of the slag runner, and then cool water, so that the safety risk can be relieved, but the service life of the waste tuyere medium sleeve is short, and the waste tuyere medium sleeve is inconvenient to produce. Aiming at the problems, the prior open copper water cooling device for the blast furnace slag runner nozzle of the publication No. CN217809516U discloses that the device is made of copper, has better heat conductivity, but has lower strength, is not wear-resistant, has poorer heat stress deformation resistance, is damaged on the surface after a period of time or is deformed under the action of heat stress, and the inner cavity waterway is deformed and broken, so that the heat conductivity is reduced to be damaged. In addition, the device is the concatenation form, and inside water pipe is arranged the design poorly, and heat conductivility is not strong, leads to whole life-span shorter, only 2 months, installs after 2000 high-furnace uses, and its surface is eroded soon and takes place deformation with high temperature, causes the production passive.
Disclosure of utility model
Therefore, the technical problem to be solved by the utility model is to overcome the problems of poor heat conduction performance and short service life of the spout in the prior art, and provide the spout device at the end part of the blast furnace slag trench, wherein the spout inlet of the spout body is connected with the slag trench, the spraying system is arranged at the spout outlet, and meanwhile, the inner cavity water channels are uniformly distributed in the spout body, so that the whole spout device has good heat conduction performance, remarkably improved corrosion resistance and thermal stress deformation resistance, and the explosion phenomenon possibly generated in the discharging process of high-temperature slag is avoided.
In order to solve the technical problems, the utility model provides a blast furnace slag runner end mouth sliding device, which comprises:
The chute comprises a chute body, wherein one end of the chute body is provided with a chute inlet, the other end of the chute body is provided with a chute outlet, and the chute inlet is used for being connected with a slag runner outlet;
The spraying system is arranged at the outlet of the chute nozzle body; the spraying system comprises a spraying pipe and a water inlet pipe arranged on the spraying pipe, and a plurality of water spraying holes are formed in the spraying pipe;
The cooling system is arranged inside the spout body and comprises a plurality of inner cavity water channels which are communicated with each other, and a water inlet and a water outlet of each inner cavity water channel are positioned at the inlet of the spout body.
In one embodiment of the present utility model, 3 groups of water spraying holes are uniformly arranged on each spraying pipe along the length direction, each group of water spraying holes comprises a first water spraying hole and a second water spraying hole, and an included angle between the water outlet directions of the first water spraying hole and the second water spraying hole is 60 degrees. The design can realize uniform spraying on the spout outlet, cool slag at the spout outlet, and effectively prevent slag at the spout outlet.
In one embodiment of the utility model, the water inlet and the water outlet are provided with internal threads. After the spout device is installed, the water inlet can be connected with an industrial water pipe of DN40 through threads, the water outlet is connected with the empty pipe through threads, the cooling water is recycled, the empty pipe is connected with a slag flushing ditch system, and slag flushing is performed on a slag flushing ditch in real time, so that the problem of blockage of the slag flushing ditch is effectively solved.
In one embodiment of the utility model, the inner cavity water channels comprise eight inner cavity water channels which are uniformly distributed in the inner part of the spout body, and are connected end to end. The diameter of the inner cavity water channel is DN40, and the inner cavity water channel is uniformly distributed, so that the chute nozzle body can be uniformly cooled, the heat conduction performance of the chute nozzle body is enhanced, and when the chute nozzle is in work, the cooling water is fed into the inner cavity water channel by using industrial water with daily flow of 1500m3/h to realize circulating cooling, so that the whole chute nozzle body can be cooled in real time, and the whole service life of the chute nozzle body can be prolonged.
In one embodiment of the utility model, the spout body is provided with two lifting lugs which are oppositely arranged on the spout body.
In one embodiment of the utility model, the water inlet pipe on the spray pipe is connected with an external industrial water pipe, and each water inlet pipe is provided with a water valve.
In one embodiment of the utility model, slag runner castable is paved on the upper surface of the spout body, the thickness of the slag runner castable is 100mm, and the spout body and the slag runner are integrally molded.
In one embodiment of the utility model, the spout body protrudes 50mm from the slag runner end. The length of the spout body is 1050mm, the length of the tail part of the tail end of the slag runner is 1000mm, and the 50mm of the tail end of the protruding slag runner enables the end part of the spout body protruding the slag runner to avoid the situation that slag splashes when being discharged into the spout body; when the spout body and the slag runner are fixedly installed, the spout body and the slag runner are integrally poured, and the A-A end of the spout body and the slag runner pouring material are seamlessly joined and poured together, so that the connection firmness of the spout body and the slag runner is enhanced.
In one embodiment of the utility model, the spout body is made of a copper alloy containing 5% copper. Has good mechanical property, corrosion resistance and processability, and has good thermal stress deformation resistance.
In one embodiment of the utility model, the spout body is a U-shaped structure. Install the exit end at the slag runner with U-shaped structure and be used for receiving the slag and discharge it, the inner chamber water course of the intermediate position of U-shaped structure carries out the U-shaped with the design of U-shaped structure and arranges, can further increase the area of contact of the surface of spout body 1 and slag, strengthens the cooling effect of slag.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
According to the blast furnace slag runner end mouth sliding device, the mouth sliding inlet of the mouth sliding body is connected with the slag runner, the spraying system is arranged at the mouth sliding outlet, and meanwhile, the inner cavity water channels are uniformly distributed in the mouth sliding body, so that the mouth sliding body has good heat conducting performance, corrosion resistance and thermal stress deformation resistance are remarkably improved, and the explosion phenomenon possibly generated in the discharging process of high-temperature slag is avoided.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a schematic view of a blast furnace slag runner end spout assembly according to a preferred embodiment of the present utility model;
FIG. 2 is a schematic view of the spout body of the blast furnace slag runner end spout assembly of FIG. 1;
FIG. 3 is a schematic view of the interior channel of the spout body of FIG. 2;
Description of the specification reference numerals: 1. a spout body; 2. a spout inlet; 3. a spout outlet; 31. an inner cavity water channel; 32. a water inlet; 33. a water outlet; 4. a spraying system; 41. a shower pipe; 42. a water inlet pipe; 43. and water spraying holes.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1, the blast furnace slag runner end spout device of the present utility model comprises: the slag runner comprises a slag runner body 1, wherein one end of the slag runner body 1 is provided with a slag runner inlet 2, and the other end of the slag runner body is provided with a slag runner outlet 3; the spraying system is arranged at the outlet of the chute nozzle body; specifically, an A-A end of the spout body 1 is a spout inlet 2, the A-A end is connected with a slag runner tail outlet, a B-B end is a spout outlet 3, and a spraying system 4 is arranged at the B-B end; the spraying system 4 comprises a spraying pipe 41 and a water inlet pipe 42 arranged on the spraying pipe 41, and a plurality of water spraying holes 43 are formed in the spraying pipe 41; in this embodiment, 3 groups of water spraying holes are uniformly formed in each spraying pipe along the length direction, and each group of water spraying holes 43 comprises a first water spraying hole and a second water spraying hole, wherein an included angle formed by the water outlet directions of the first water spraying hole and the second water spraying hole is 60 degrees. The design can realize uniform spraying on the spout outlet, cool slag at the spout outlet, and effectively prevent slag from being blown at the spout outlet, thereby avoiding safety accidents. When in use, the water inlet pipe 42 is singly connected with industrial water with the flow rate of 1500m 3/h; the cooling system 3 is arranged inside the spout body 1, the cooling system 3 comprises a plurality of inner cavity water channels 31 which are communicated with each other, and a water inlet 32 and a water outlet 33 of the inner cavity water channels 31 are both positioned at the spout inlet 2 of the spout body 1. The water inlet 32 is communicated with the water pump, the cooling liquid is sent into the inner cavity water channel 31 through the water pump, the cooling liquid is utilized to cool the spout body 1, and then the cooling liquid flows out from the water outlet 33, so that the whole cooling of the whole spout body 1 is realized, the heat of slag is fully absorbed, and the explosion phenomenon possibly generated in the discharging process of high-temperature slag is avoided.
In this embodiment, the water inlet 32 and the water outlet 33 are disposed on the same side, so that the connecting pipeline is convenient for conveying the cooling liquid and discharging the cooling liquid with increased temperature, the length of the whole spout device can be reduced, and the space utilization rate can be improved.
In this embodiment, the water inlet 32 and the water outlet 33 are provided with internal threads. After the spout device is installed, the water inlet 32 can be connected with an industrial water pipe of DN40 through threads, the water outlet 33 is connected with an empty pipe through threads, cooling water is recycled, and the empty pipe is connected with a slag flushing ditch system for flushing slag in real time, so that the problem of slag flushing ditch blockage is effectively solved.
As shown in fig. 2 and 3, the inner cavity water channels 31 are uniformly distributed in the interior of the spout body 1, and are connected end to end. The water channel diameter of the inner cavity water channel 31 is DN40, and the inner cavity water channel is uniformly distributed, so that the heat conduction performance of the spout body 1 is enhanced, and during working, the cooling water is sent into the inner cavity water channel 31 by using industrial water with daily flow rate of 1500m3/h to realize circulating cooling, so that the whole spout body 1 can be cooled in real time, and the whole service life is prolonged.
In order to be convenient for install the swift current mouth body 1, be equipped with two lugs on the swift current mouth body 1, both set up on the swift current mouth body 1 relatively.
In this embodiment, the water inlet pipe 42 on the spray pipe 41 is connected with an external industrial water pipe, and a water valve is disposed on each water inlet pipe 42. When in use, the industrial water with the flow rate of 1500m3/h is independently connected, the spraying pipe 41 is used for spraying slag, and slag is prevented from being blown out at the outlet (B-B end) of the chute mouth, so that safety accidents are prevented from being caused; when the water inlet pipe 42 is connected with the industrial water pipe, the water valve can be opened to work, and when the spraying is required to be stopped, the water valve can be closed at any time.
After installation, the whole length of the spout body 1 protrudes 50mm from the end of the slag runner. The length of spout body 1 is 1050mm in this embodiment, occupies the length of the terminal afterbody of slag runner 1000mm, and protruding slag runner is terminal 50mm, can avoid the slag to take place the condition that splashes when discharging into spout body 1, and during the installation, spout body 1 and slag runner carry out the integral casting, and spout body 1's upper surface lays 100 mm's slag runner castable, and spout body 1's an-a end and slag runner castable seamless connection are pour together, have strengthened spout body 1 and the fastness of being connected of slag runner mouth.
Preferably, slag runner casting materials are paved on the upper surface of the spout body 1, and the spout body 1 and the slag runner are cast into a whole. Through the integral molding of pouring of swift current mouth body 1 and slag runner, improved the fastness of being connected of swift current mouth body 1 and slag runner, promoted joint strength greatly, prolonged life.
The spout body 1 in this embodiment is made of a copper alloy containing 5% copper. The copper alloy containing 5% of copper has better mechanical property, corrosion resistance and processability than the pure copper structure, very good thermal stress deformation resistance, long service life, lower manufacturing cost than the current pure copper spout and reduced production cost.
In this embodiment, the spout body 1 is in a U-shaped structure, and when in use, the U-shaped structure is mounted at the outlet end of the slag runner for receiving slag and discharging the slag, and the inner cavity water channel 31 at the middle position of the U-shaped structure is arranged in a U-shape along with the design of the U-shaped structure, so that the contact area between the surface of the spout body 1 and the slag can be further increased, and the cooling effect of the slag is enhanced. Preferably, in this embodiment, the cooling liquid is water.
The blast furnace slag ditch end mouth sliding device based on the structure has good heat conduction performance, remarkably improves corrosion resistance and thermal stress deformation resistance, and avoids explosion phenomenon possibly generated in the discharging process of high-temperature slag. The service life is prolonged from 2 months to 7 months, the cost is reduced by 30%, and a good foundation is laid for safe and stable production of the blast furnace and improvement of technical indexes.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. A blast furnace slag runner tip mouth sliding device, its characterized in that: comprising the following steps:
The chute comprises a chute body, wherein one end of the chute body is provided with a chute inlet, the other end of the chute body is provided with a chute outlet, and the chute inlet is used for being connected with a slag runner outlet;
The spraying system is arranged at the outlet of the chute nozzle body; the spraying system comprises a spraying pipe and a water inlet pipe arranged on the spraying pipe, and a plurality of water spraying holes are formed in the spraying pipe;
The cooling system is arranged inside the spout body and comprises a plurality of inner cavity water channels which are communicated with each other, and a water inlet and a water outlet of each inner cavity water channel are positioned on one side of the spout body.
2. The blast furnace slag runner end spout assembly of claim 1, wherein: 3 groups of water spray holes are uniformly formed in each spray pipe along the length direction, each group of water spray holes comprises a first water spray hole and a second water spray hole, and an included angle formed by the water outlet directions of the first water spray holes and the second water spray holes is 60 degrees.
3. The blast furnace slag runner end spout assembly of claim 1, wherein: and the water inlet and the water outlet are both provided with internal threads.
4. The blast furnace slag runner end spout assembly of claim 1, wherein: the inner cavity water channels comprise eight inner cavity water channels which are uniformly distributed in the inner part of the spout body, and are connected end to end.
5. The blast furnace slag runner end spout assembly of claim 1, wherein: the sliding nozzle body is provided with two lifting lugs which are oppositely arranged on the sliding nozzle body.
6. The blast furnace slag runner end spout assembly of claim 1, wherein: the water inlet pipe on the spray pipe is connected with an external industrial water pipe, and a water valve is arranged on each water inlet pipe.
7. The blast furnace slag runner end spout assembly of claim 1, wherein: the slag runner castable is paved on the upper surface of the spout body, the thickness of the slag runner castable is 100mm, and the spout body and the slag runner are poured into one body.
8. The blast furnace slag runner end spout assembly of claim 7, wherein: the spout body protrudes 50mm from the end of the slag runner.
9. The blast furnace slag runner end spout assembly of claim 1, wherein: the spout body is made of a copper alloy containing 5% copper.
10. The blast furnace slag runner end spout assembly of claim 1, wherein: the spout body is in a U-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323514842.2U CN221421143U (en) | 2023-12-22 | 2023-12-22 | Blast furnace slag runner end mouth sliding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323514842.2U CN221421143U (en) | 2023-12-22 | 2023-12-22 | Blast furnace slag runner end mouth sliding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221421143U true CN221421143U (en) | 2024-07-26 |
Family
ID=91974148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323514842.2U Active CN221421143U (en) | 2023-12-22 | 2023-12-22 | Blast furnace slag runner end mouth sliding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221421143U (en) |
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2023
- 2023-12-22 CN CN202323514842.2U patent/CN221421143U/en active Active
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