CN203156027U - Anti-clogging air supply system for steel ladle purging plug brick - Google Patents
Anti-clogging air supply system for steel ladle purging plug brick Download PDFInfo
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- CN203156027U CN203156027U CN 201320100673 CN201320100673U CN203156027U CN 203156027 U CN203156027 U CN 203156027U CN 201320100673 CN201320100673 CN 201320100673 CN 201320100673 U CN201320100673 U CN 201320100673U CN 203156027 U CN203156027 U CN 203156027U
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- China
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- air
- supply system
- purging plug
- plug brick
- steel ladle
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Abstract
An anti-clogging air supply system for a steel ladle purging plug brick relates to a steel ladle bottom blowing air supply system, and solves the problem that during smelting of molten steel, the molten steel or steel slag flows backwards into a purging plug brick to shorten the service life of the purging plug brick after the bottom blowing stops. The anti-clogging air supply system for the steel ladle purging plug brick comprises the purging plug brick mounted at the bottom of the steel ladle, wherein a flexible tube is connected with the purging plug brick; a first three-way tube and a second three-way tube are sequentially mounted on the flexible tube respectively; a quick connector is connected with one end of the first three-way tube, the air inlet of a one-way air inlet valve is connected with the other end of the first three-way tube; the air outlet of the one-way air inlet valve is connected with an air pocket via a third three-way tube; the other end of the third three-way tube is connected with the high pressure end of a proportioned air reducing valve; and the other end port of the second three-way tube is connected with the lower pressure end of the proportioned air reducing valve. According to the utility model, air is always exhausted from a narrow gap in the purging plug brick, and molten steel can not infiltrate into the narrow gap, so that the working layer of the purging plug brick is protected and the service life of the purging plug brick is prolonged.
Description
Technical field
The utility model relates to a kind of ladle bottom blowing air supply system, specifically a kind of air brick of steel ladle anti-clogging air supply system.
Background technology
Furnace outer refining technology is the important technology technological measure that improves the molten steel cleanliness factor, air brick in the ladle bottom blowing system is important function original paper during furnace outer refining technology is used, the external refining effect is played an important role, since ladle bottom blowing in whole molten steel smelting process to even molten steel composition, temperature and deoxidation, desulfurization, metallurgical effect such as remove to be mingled with and play an important role, directly influence is to the quality lifting of variety steel, the control of rhythm of production.But in casting steel with ladle; because bottom blowing stops; thereby molten steel or slag can stop up air flue along the infiltration downwards of air brick air feed slit in the ladle; each hot repair need be with burning the oxygen cleaning; it is not only boiled to the air flue high temperature melting of having stopped up to burn the oxygen cleaning process; also the high-melting-point protective layer fusing of air brick working lining and the formation of slag oxide is burnt, cause air brick working face deterioration 1-5mm even more.Thereby so accelerated the air brick erosive velocity repeatedly, reduced air brick service life.
The utility model content
The purpose of this utility model is to provide a kind of air brick of steel ladle anti-clogging air supply system, and molten steel or slag flowed backward to and reduce the air brick problem in service life in the air brick after bottom blowing stopped during the solution molten steel was smelted.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of air brick of steel ladle anti-clogging air supply system, comprise the air brick that is installed in ladle bottom, be connected with flexible pipe on the air brick, it is characterized in that, first three-way pipe and second three-way pipe also are installed respectively on flexible pipe in proper order, one end of described first three-way pipe connects snap joint, the other end is connected with the air inlet of breather cheek valve, the gas outlet of breather cheek valve connects a gas bag by the 3rd three-way pipe, the another port of the 3rd three-way pipe links to each other with the high-pressure side of proportion expression gas pressure reducer, and the another port of second three-way pipe links to each other with the low-pressure end of proportion expression gas pressure reducer.
Described gas bag outer wall is heat-insulation layer and refractory material is integrated poured forms.
Described heat-insulation layer is that 10mm is thick.
Described refractory material 20-50mm is thick.
The decompression ratio of described proportion expression gas pressure reducer can be any one among 2:1,3:1,3:2,5:4 or the 4:3.
The beneficial effects of the utility model are: after ladle refining is finished the external air source cut-out, gas bag will be ladle bottom air brick air feed automatically, the proportion expression gas pressure reducer is according to air brick working face slit place pressure change situation in watering the whole process of steel, automatically make the air brick of steel ladle slit that the gas discharging is arranged all the time, can not make molten steel infiltrate slit, thereby protect the air brick working lining, improve air brick service life; Gas bag adopts heat-insulation layer and refractory material casting material double shielding can prevent that gas bag is subjected to high temperature and molten steel splash to cause explosion danger to take place.
Description of drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the use state diagram of Fig. 1.
Among the figure: 1 ladle, 2 air bricks, 3 flexible pipes, 4 first three-way pipes, 5 second three-way pipes, 6 snap joints, 7 breather cheek valves, 8 the 3rd three-way pipes, 9 gas bags, 10 proportion expression gas pressure reducers.
The specific embodiment
As shown in Figure 1, a kind of air brick of steel ladle anti-clogging air supply system, comprise the air brick 2 that is installed in ladle 1 bottom, be connected with flexible pipe 3 on the air brick 2, first three-way pipe 4 and second three-way pipe 5 also are installed respectively on flexible pipe 3 in proper order, one end of described first three-way pipe 4 connects snap joint 6, the other end is connected with the air inlet of breather cheek valve 7, the gas outlet of breather cheek valve 7 connects a gas bag 9 by the 3rd three-way pipe 8, the another port of the 3rd three-way pipe 8 links to each other with the high-pressure side of proportion expression gas pressure reducer 10, and the another port of second three-way pipe 5 links to each other with the low-pressure end of proportion expression gas pressure reducer 10.
Described gas bag 9 outer walls are heat-insulation layer and refractory material is integrated poured forms.
Described heat-insulation layer is that 10mm is thick.
Described refractory material 20-50mm is thick.
The decompression ratio of described proportion expression gas pressure reducer 10 can be any one among 2:1,3:1,3:2,5:4 or the 4:3.
As shown in Figure 2; be the inside that the gas bag 9 of 7～15L places the ladle leg with volume; and away from bag end air brick 2 and the mouth of a river; with gas bag 9 and the fixation of ladle leg; gas bag 9 is pressed close to shell and is adopted 10mm heat-insulation layer and the double shielding of the integrated poured layer of 20～30mm refractory material, can prevent that gas bag 9 is subjected to high temperature and molten steel splash to cause explosion danger to take place.Having formed closed gas circuit after snap joint 6 and gas source pipe joint are connected, is gas bag 9 air feed by gas source pipe by breather cheek valve 7, is air brick 2 air feed by second three-way pipe 5 also simultaneously; Snap joint will be closed automatically after snap joint 6 disconnects, and gas can not leak in the pipeline, and this moment, gas bag 9 passing ratio formula gas pressure reducers 10 were air brick 2 air feed.Ladle 1 constantly descends owing to the molten steel face in steel pouring process, the pressure that acts on air brick 2 slit mouth places constantly reduces, the also adjusting of passing ratio formula gas pressure reducer 10 of gas pressure in the gas bag 9, gas is constantly slowly discharged by air brick 2 slits, whole like this steel pouring process air brick 2 slits always have the gas discharging, can prevent that molten steel from infiltrating slit and can not stop up slit, improve the service life of air brick 2.
Claims (5)
1. air brick of steel ladle anti-clogging air supply system, comprise the air brick that is installed in ladle bottom, be connected with flexible pipe on the air brick, it is characterized in that, first three-way pipe and second three-way pipe also are installed respectively on flexible pipe in proper order, one end of described first three-way pipe connects snap joint, the other end is connected with the air inlet of breather cheek valve, the gas outlet of breather cheek valve connects a gas bag by the 3rd three-way pipe, the another port of the 3rd three-way pipe links to each other with the high-pressure side of proportion expression gas pressure reducer, and the another port of second three-way pipe links to each other with the low-pressure end of proportion expression gas pressure reducer.
2. a kind of air brick of steel ladle anti-clogging air supply system according to claim 1 is characterized in that, described gas bag outer wall is heat-insulation layer and refractory material is integrated poured forms.
3. a kind of air brick of steel ladle anti-clogging air supply system according to claim 2 is characterized in that described heat-insulation layer is that 10mm is thick.
4. a kind of air brick of steel ladle anti-clogging air supply system according to claim 2 is characterized in that described refractory material 20-50mm is thick.
5. a kind of air brick of steel ladle anti-clogging air supply system according to claim 1 is characterized in that, the decompression ratio of described proportion expression gas pressure reducer can be any one among 2:1,3:1,3:2,5:4 or the 4:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100673 CN203156027U (en) | 2013-03-06 | 2013-03-06 | Anti-clogging air supply system for steel ladle purging plug brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100673 CN203156027U (en) | 2013-03-06 | 2013-03-06 | Anti-clogging air supply system for steel ladle purging plug brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203156027U true CN203156027U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320100673 Expired - Lifetime CN203156027U (en) | 2013-03-06 | 2013-03-06 | Anti-clogging air supply system for steel ladle purging plug brick |
Country Status (1)
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| CN (1) | CN203156027U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100705A (en) * | 2013-03-06 | 2013-05-15 | 济南鲁东耐火材料有限公司 | Anti-clogging air supply system of permeable brick for ladle |
| CN103600057A (en) * | 2013-12-09 | 2014-02-26 | 中天钢铁集团有限公司 | Anti-blocking method for steel ladle air brick |
| CN109914183A (en) * | 2019-04-19 | 2019-06-21 | 江苏建筑职业技术学院 | Ground laying structure and processing method |
| CN111774560A (en) * | 2020-07-25 | 2020-10-16 | 莱芜钢铁集团银山型钢有限公司 | LF refining ladle microporous ceramic rod breathable upper nozzle pocket brick and argon blowing control method thereof |
-
2013
- 2013-03-06 CN CN 201320100673 patent/CN203156027U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100705A (en) * | 2013-03-06 | 2013-05-15 | 济南鲁东耐火材料有限公司 | Anti-clogging air supply system of permeable brick for ladle |
| CN103600057A (en) * | 2013-12-09 | 2014-02-26 | 中天钢铁集团有限公司 | Anti-blocking method for steel ladle air brick |
| CN109914183A (en) * | 2019-04-19 | 2019-06-21 | 江苏建筑职业技术学院 | Ground laying structure and processing method |
| CN109914183B (en) * | 2019-04-19 | 2023-09-05 | 江苏建筑职业技术学院 | Ground laying structure and processing method |
| CN111774560A (en) * | 2020-07-25 | 2020-10-16 | 莱芜钢铁集团银山型钢有限公司 | LF refining ladle microporous ceramic rod breathable upper nozzle pocket brick and argon blowing control method thereof |
| CN111774560B (en) * | 2020-07-25 | 2022-03-11 | 莱芜钢铁集团银山型钢有限公司 | LF refining ladle microporous ceramic rod breathable upper nozzle pocket brick and argon blowing control method thereof |
| JP2023515903A (en) * | 2020-07-25 | 2023-04-14 | 莱蕪鋼鉄集団銀山型鋼有限公司 | Breathable Nozzle Receiving Brick with Microporous Ceramic Rod for LF Refining Ladle, and Argon Gas Blowing Control Method Therefor |
| JP7299430B2 (en) | 2020-07-25 | 2023-06-27 | 莱蕪鋼鉄集団銀山型鋼有限公司 | Breathable Nozzle Receiving Brick with Microporous Ceramic Rod for LF Refining Ladle, and Argon Gas Blowing Control Method Therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |