CN116590496A - System and method for preventing blocking of steel ladle air brick - Google Patents
System and method for preventing blocking of steel ladle air brick Download PDFInfo
- Publication number
- CN116590496A CN116590496A CN202310544645.0A CN202310544645A CN116590496A CN 116590496 A CN116590496 A CN 116590496A CN 202310544645 A CN202310544645 A CN 202310544645A CN 116590496 A CN116590496 A CN 116590496A
- Authority
- CN
- China
- Prior art keywords
- branch
- gas
- ladle
- air
- argon
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 239000011449 brick Substances 0.000 title claims abstract description 30
- 230000000903 blocking effect Effects 0.000 title claims abstract description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000007789 gas Substances 0.000 claims abstract description 67
- 229910052786 argon Inorganic materials 0.000 claims abstract description 35
- 238000007670 refining Methods 0.000 claims abstract description 17
- 238000003723 Smelting Methods 0.000 claims abstract description 12
- 238000010079 rubber tapping Methods 0.000 claims abstract description 10
- 230000001502 supplementing effect Effects 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 abstract description 5
- 238000001764 infiltration Methods 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920002148 Gellan gum Polymers 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention provides a system and a method for preventing blocking of a steel ladle air brick, wherein the system comprises a steel ladle body; the gas ladle is used for supplying argon to the ladle body in the lifting process from the tapping of the primary smelting furnace to the refining process, and is detachably arranged on the outer wall of the ladle body; the first branch, the second branch and the third branch are arranged between the air source and the ladle body, and the third branch is provided with an air switch; one end of the second branch is communicated with a third branch part between the gas switch and the gas source, and the other end of the second branch is communicated with the gas bag; a second one-way valve is arranged on the second branch, and argon in the gas bag flows to the ladle body through the second one-way valve; the first branch is arranged between the air source and the air bag and used for supplementing argon to the air bag, the first branch is provided with a first one-way valve, and the argon at the air source flows to the air bag through the first one-way valve. The invention can prevent the air brick from being blocked due to the infiltration of molten steel into the cold steel, namely can improve the air permeability of the steel ladle.
Description
Technical Field
The invention belongs to the technical field of ferrous metallurgy, and particularly relates to a system and a method for preventing blocking of steel ladle air bricks.
Background
The argon blowing from the bottom of the ladle has important significance for external refining, and is an important device for refining adjusting components, slagging and removing impurities. However, in actual production, particularly when tapping from a primary smelting furnace to refining treatment, no gas is introduced into the bottom of the ladle in the lifting process, at the moment, molten steel at the bottom possibly permeates into the air brick, and the molten steel is cooled to cause the situation of ladle bottom blowing blockage due to cold steel, so that the production and quality are greatly influenced, and the situation of improving ladle bottom blowing stability and reducing the blockage of the air brick is a difficult problem faced by various large steels at home and abroad.
Disclosure of Invention
The invention aims to provide a system and a method for preventing the blocking of a steel ladle air brick, which can prevent the blocking of the air brick caused by the infiltration of molten steel into the gellan steel in the air brick, namely, the air permeability of the steel ladle can be improved, the stability of bottom blowing flow is improved, and the service life of the air brick can be prolonged. In order to achieve the above purpose, the following technical scheme is adopted:
a system for preventing clogging of steel ladle air brick, comprising:
a ladle body;
the gas ladle is used for supplying argon to the ladle body in the lifting process from the tapping ladle of the primary smelting furnace to the refining process, and is detachably arranged on the outer wall of the ladle body;
the gas source device comprises a first branch, a second branch and a third branch, wherein the third branch is arranged between the gas source and the ladle body, and a gas switch is arranged on the third branch;
one end of the second branch is communicated with a third branch part between the gas switch and the gas source, and the other end of the second branch is communicated with the gas bag; a second one-way valve is arranged on the second branch, and argon in the gas bag flows to the ladle body through the second one-way valve;
the first branch is arranged between the air source and the air bag and is used for supplementing argon to the air bag, a first one-way valve is arranged on the first branch, and the argon at the air source flows to the air bag through the first one-way valve.
Preferably, the gas bag is positioned at the lower end of the ladle body.
Preferably, a clamping ring is arranged on the ladle body, and the air ladle is clamped on the clamping ring.
Preferably, the input pipeline of the air source is detachably arranged on the outer bottom surface of the ladle body; and a switch assembly is arranged between the input pipeline and the input end of the third branch.
Preferably, the air bag is made of a high pressure resistant material.
Preferably, a pressure regulating valve is arranged on the third branch.
A method for preventing blocking of air bricks of a ladle, comprising the following steps:
before the steel ladle is tapped from the primary smelting furnace and is lifted to a refining process, closing a gas switch and a switch assembly on a third branch; the air source fills argon into the corresponding air bag through the input pipeline and the first branch;
in the lifting process from the tapping ladle of the primary smelting furnace to the refining process, the switch assembly on the third branch is kept to be closed, the gas switch is opened, and argon in the gas ladle flows to the third branch through the second one-way valve on the second branch and enters the ladle body.
Preferably, in the refining process, a gas switch and a switch assembly on the third branch are opened, and the gas source introduces argon into the ladle body through the input pipeline and the third branch; argon in the gas bag continuously flows to the third branch through the second one-way valve on the second branch and enters the ladle body.
Compared with the prior art, the invention has the advantages that: in the lifting process from the tapping ladle of the primary smelting furnace to the refining process, the switch assembly on the third branch is kept to be closed, the gas switch is opened, and argon in the gas ladle flows to the third branch through the second one-way valve on the second branch and enters the ladle body. From this, the argon gas in the gas pocket releases gas to the air brick of ladle body, provides ascending pressure to can prevent the infiltration of molten steel air brick, thereby can prevent to lead to the air brick to block up because of the infiltration of molten steel into the knot cold steel in the air brick, can improve ladle gas permeability promptly.
Drawings
FIG. 1 is a block diagram of a system for preventing the blocking of air bricks in a ladle;
fig. 2 is a structural diagram of an external air path unit.
The device comprises a 1-ladle body, a 2-gas bag, a 3-external gas circuit unit, a 31-first branch, a 32-second branch, a 33-third branch, a 34-gas switch, a 35-pressure regulating valve, a 36-second one-way valve, a 37-switch assembly, a 4-gas source and 5-argon.
Detailed Description
The ladle air brick blocking prevention system and method of the present invention will be described in more detail below in conjunction with the schematic drawings, wherein preferred embodiments of the present invention are shown, it being understood that one skilled in the art could modify the invention described herein while still achieving the beneficial effects of the present invention. Accordingly, the following description is to be construed as broadly known to those skilled in the art and not as limiting the invention.
1-2, a system for preventing blocking of steel ladle air bricks, comprising:
the ladle body 1, welding snap ring on the ladle body 1, the gas pocket 2 card is located the snap ring.
The gas ladle 2 is used for supplying argon 5 to the ladle body 1 in the lifting process from the tapping ladle of the primary smelting furnace to the refining process, and is detachably arranged on the outer wall of the ladle body 1, and preferably, the gas ladle 2 is positioned at the lower end of the ladle body 1 and is made of high-pressure resistant materials.
The external gas circuit unit 3 comprises a first branch 31, a second branch 32 and a third branch 33, wherein the third branch 33 is arranged between the gas source 4 and the ladle body 1, and a gas switch 34 and a pressure regulating valve 35 are arranged on the third branch 33.
One end of the second branch 32 is communicated with a third branch part between the gas switch 34 and the gas source, and the other end is communicated with the gas bag 2; the second branch 32 is provided with a second one-way valve 36, and argon in the gas bag 2 flows to the ladle body 1 through the second one-way valve 36;
the first branch 31 is arranged between the air source 4 and the air bag 2 and is used for supplementing argon 5 to the air bag 2, a first one-way valve is arranged on the first branch 31, and the argon 5 at the air source 4 flows to the air bag 2 through the first one-way valve. The input pipeline of the air source 4 is detachably arranged on the outer bottom surface of the ladle body 1, and a switch assembly 37 is arranged between the input pipeline and the input end of the third branch 33. More specifically, the input pipe is connected to the first branch 31 and the third branch 33, and the input pipe, the first branch 31 and the third branch 33 are installed in a bearing block (as shown in fig. 2), and the bearing block is clamped at the bottom of the ladle body 1, that is, a fastening structure is formed between the ladle body 1 and the bearing block. By the above, this system installs and dismantles at any time, does not influence normal production, and can play the effect that protection air brick was not stopped up by cold steel infiltration, extension air brick life to a certain extent.
A method for preventing blocking of air bricks of a ladle, comprising the following steps:
before the steel ladle tapping from the primary smelting furnace is lifted to a refining process, closing a gas switch 34 and a switch assembly 37 on a third branch 33; the air source 4 fills argon 5 into the corresponding air bag 2 through the input pipeline and the first branch 31.
Argon 5 in the gas bag 2 cannot enter the ladle body 1.
In the lifting process from the tapping ladle of the primary smelting furnace to the refining process, the switch assembly 37 on the third branch circuit 33 is kept to be closed, the gas switch 34 is opened, and the argon gas 5 in the gas ladle 2 flows to the third branch circuit 33 through the second one-way valve 36 on the second branch circuit 32 and enters the ladle body 1. The argon gas in the gas ladle 2 releases gas to the air brick of the ladle body 1 to provide upward pressure, thereby preventing molten steel from penetrating into the air brick.
The air source 4 continuously fills argon 5 into the corresponding air bag 2 through the input pipeline and the first branch 31.
In the refining process, a gas switch 34 and a switch assembly 37 on a third branch 33 are opened, and an air source 4 is used for introducing argon 5 into the ladle body 1 through an input pipeline and the third branch 33; argon 5 in the gas bag 2 continues to flow to the third branch 33 through the second one-way valve 36 on the second branch 32 and enters the ladle body 1.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the invention without departing from the scope of the technical solution of the invention, and the technical solution of the invention is not departing from the scope of the invention.
Claims (8)
1. A system for preventing clogging of ladle gas permeable bricks, comprising:
a ladle body;
the gas ladle is used for supplying argon to the ladle body in the lifting process from the tapping ladle of the primary smelting furnace to the refining process, and is detachably arranged on the outer wall of the ladle body;
the gas source device comprises a first branch, a second branch and a third branch, wherein the third branch is arranged between the gas source and the ladle body, and a gas switch is arranged on the third branch;
one end of the second branch is communicated with a third branch part between the gas switch and the gas source, and the other end of the second branch is communicated with the gas bag; a second one-way valve is arranged on the second branch, and argon in the gas bag flows to the ladle body through the second one-way valve;
the first branch is arranged between the air source and the air bag and is used for supplementing argon to the air bag, a first one-way valve is arranged on the first branch, and the argon at the air source flows to the air bag through the first one-way valve.
2. The system of claim 1, wherein the gas pocket is located at a lower end of the ladle body.
3. The system for preventing blocking of air bricks of a steel ladle according to claim 1, wherein a clamping ring is arranged on the steel ladle body, and the air bag is clamped on the clamping ring.
4. The system for preventing air brick blockage of a ladle in accordance with claim 1 wherein the inlet conduit of the air source is removably mounted to the outer bottom surface of the ladle body; and a switch assembly is arranged between the input pipeline and the input end of the third branch.
5. The system of claim 1, wherein the air bag is made of a high pressure resistant material.
6. The system of claim 1, wherein the third leg is provided with a pressure regulating valve.
7. The method for preventing the blocking of the air brick of the steel ladle is characterized by comprising the following steps of:
before the steel ladle is tapped from the primary smelting furnace and is lifted to a refining process, closing a gas switch and a switch assembly on a third branch; the air source fills argon into the corresponding air bag through the input pipeline and the first branch;
in the lifting process from the tapping ladle of the primary smelting furnace to the refining process, the switch assembly on the third branch is kept to be closed, the gas switch is opened, and argon in the gas ladle flows to the third branch through the second one-way valve on the second branch and enters the ladle body.
8. The method for preventing a steel ladle air brick from being blocked according to claim 7, wherein in the refining process, a gas switch and a switch assembly on a third branch are turned on, and a gas source is used for introducing argon into the steel ladle body through an input pipeline and the third branch; argon in the gas bag continuously flows to the third branch through the second one-way valve on the second branch and enters the ladle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310544645.0A CN116590496A (en) | 2023-05-15 | 2023-05-15 | System and method for preventing blocking of steel ladle air brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310544645.0A CN116590496A (en) | 2023-05-15 | 2023-05-15 | System and method for preventing blocking of steel ladle air brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116590496A true CN116590496A (en) | 2023-08-15 |
Family
ID=87610969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310544645.0A Pending CN116590496A (en) | 2023-05-15 | 2023-05-15 | System and method for preventing blocking of steel ladle air brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116590496A (en) |
-
2023
- 2023-05-15 CN CN202310544645.0A patent/CN116590496A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |