CN112872343A - Online steel ladle hot-patching technology - Google Patents
Online steel ladle hot-patching technology Download PDFInfo
- Publication number
- CN112872343A CN112872343A CN202110048031.4A CN202110048031A CN112872343A CN 112872343 A CN112872343 A CN 112872343A CN 202110048031 A CN202110048031 A CN 202110048031A CN 112872343 A CN112872343 A CN 112872343A
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- Prior art keywords
- platform
- ladle
- hot
- steel ladle
- funnel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
- B22D41/023—Apparatus used for making or repairing linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses an online steel ladle hot patching process, which comprises the following steps: 1) welding a platform above a steel ladle breathable core of a ladle sand platform of the tilting machine; 2) a funnel is arranged at the front end of the platform, and the lower end of the funnel penetrates through the platform and extends into the steel ladle; 3) a stirrer is additionally arranged on the platform; 4) after the ventilation core is replaced, the thermal supplementary material can be directly fed on the tipping machine. The invention ensures the safe operation of the ladle; time is saved, and the productivity is effectively promoted to be improved; the cost is saved, the working environment is improved, and the labor intensity of workers is reduced.
Description
Technical Field
The invention relates to a ladle online hot-patching technology.
Background
A4-seat converter in a steel plant is provided with three steel ladle hot repair stations, wherein 42 steel ladles are hot repaired in each shift, the air permeable core is replaced, the water feeding port is replaced for 2 times, and the steel ladles on the upper line and the lower line are replaced for one time, so that the time connection is extremely compact. Ladle hot patching, namely after the air-permeable core of the ladle is replaced, refractory material needs to be put into the ladle, and sintering is carried out for 20min by depending on the temperature in the ladle, so that the air-permeable core is firmly combined with the bottom of the ladle, and the steel leakage accident is avoided. Before improvement, after the air permeable core of the ladle is replaced, a hanging seat is required to be hung on a converter flat car and driven to a CAS station, an operator ascends from a stair to the CAS station platform, and refractory materials are put in to complete ladle hot repair. The CAS platform has small space, relative sealing and high temperature, and is not beneficial to the operation of workers. The feeding port of the CAS platform of the converter is limited by equipment and cannot be aligned with the air permeable core of the steel ladle, so that the feeding of hot patching materials is inaccurate, the using amount is large, the using amount of each air permeable core reaches 200 kg, the hot patching materials cannot rapidly flow to the upper part of the air permeable core, the effect of protecting the air permeable core by the hot patching materials cannot be achieved, and the service life and the safety of the air permeable core are reduced. The manual stirring hot patching material is not uniform in stirring, so that the hot patching material cannot be uniformly distributed around the breathable core after being fed, the breathable core cannot be better protected, and the service life of the breathable core is shortened. The CAS platform needs to be sintered for 20 minutes after delivering the hot feeding materials, so that the converter is waited, the production rhythm is influenced, and the production efficiency is reduced.
Disclosure of Invention
The invention aims to provide an online hot-patching process for a steel ladle, which improves the service life of an air-permeable core and ensures the safe operation of the steel ladle; time is saved, and the productivity is effectively promoted to be improved; the cost is saved, the working environment is improved, and the labor intensity of workers is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows: an online steel ladle hot-patching process comprises the following steps:
1) welding a platform above a steel ladle breathable core of a ladle sand platform of the tilting machine;
2) a funnel is arranged at the front end of the platform, and the lower end of the funnel penetrates through the platform and extends into the steel ladle;
3) a stirrer is additionally arranged on the platform;
4) after the ventilation core is replaced, the thermal supplementary material can be directly fed on the tipping machine.
Further, the width of the platform in the step 1 is 800mm, and the length of the platform is 1800 mm.
Further, the length of the funnel in the step 2 is 4 m.
The invention has the following beneficial effects: according to the ladle online hot patching process, the service life of the air-permeable core is prolonged, and the safe operation of the ladle is guaranteed; time is saved, and the productivity is effectively promoted to be improved; the cost is saved, the working environment is improved, and the labor intensity of workers is reduced.
Drawings
FIG. 1 is a schematic diagram of the operation of the ladle on-line hot-feed process of the present invention.
Wherein: 1. a ladle repairing pit, 2, a ladle, 3, a breathable core, 4, a platform, 5, a funnel, 6 and a stirrer.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an on-line hot-feeding process for a ladle includes:
1) welding a platform 4 above a ladle breathable core 3 of a ladle sand platform of the tilting machine; the operation space is enlarged, and the working environment is improved;
2) a funnel 5 is arranged at the front end of the platform 2, and the lower end of the funnel 5 penetrates through the platform 4 and extends into the ladle 2; the heat-supplementing materials are delivered more accurately and are uniformly distributed around the air-permeable core, so that the air-permeable core 3 is better protected, the service life and the safety performance of the air-permeable core 3 are improved, and the using amount of the heat-supplementing materials is reduced;
3) a stirrer 6 is additionally arranged on the platform 4; the labor intensity of workers is reduced, the hot patching material is stirred more uniformly and is better distributed around the air permeable core, and the air permeable core 3 is protected;
4) after the ventilation core 3 is replaced, the hot supplementary material can be directly fed on the tipping machine; the waiting time is avoided, 20 minutes are saved, and the production efficiency is improved.
The width of the platform 4 in the step 1 is 800mm, and the length is 1800 mm.
The length of the funnel in the step 2 is 4 m.
1. The position of the air-permeable core of the ladle is considered in the manufacturing of the size of the hot-patching material platform, and the hot-patching material is required to be positioned right above the air-permeable core, so that the hot-patching material can be more accurately delivered above the air-permeable core, and the optimal effect is achieved.
2. After each use, the stirrer and the funnel must be cleaned up to remove the residual materials inside.
The application of the new process of the ladle online hot patching improves the service life of the permeable core from 12 furnaces to 16 furnaces; the residual length of the air-permeable core is increased from 200mm to 250mm, so that the safe operation of the ladle is guaranteed; the time is saved by 20 minutes, and the productivity is effectively promoted to be improved; the consumption of the hot-feed supplement is reduced by 80 kilograms, the cost is saved, the working environment is improved, and the labor intensity of workers is reduced.
The present invention is not limited to the above embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (3)
1. The ladle online hot patching process is characterized by comprising the following steps:
1) welding a platform above a steel ladle breathable core of a ladle sand platform of the tilting machine;
2) a funnel is arranged at the front end of the platform, and the lower end of the funnel penetrates through the platform and extends into the steel ladle;
3) a stirrer is additionally arranged on the platform;
4) after the ventilation core is replaced, the thermal supplementary material can be directly fed on the tipping machine.
2. The ladle on-line hot-feeding process as claimed in claim 1, wherein: the width of the platform in the step 1 is 800mm, and the length of the platform is 1800 mm.
3. The ladle on-line hot-feeding process as claimed in claim 1, wherein: the length of the funnel in the step 2 is 4 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110048031.4A CN112872343A (en) | 2021-01-14 | 2021-01-14 | Online steel ladle hot-patching technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110048031.4A CN112872343A (en) | 2021-01-14 | 2021-01-14 | Online steel ladle hot-patching technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112872343A true CN112872343A (en) | 2021-06-01 |
Family
ID=76048616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110048031.4A Pending CN112872343A (en) | 2021-01-14 | 2021-01-14 | Online steel ladle hot-patching technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN112872343A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4107244A (en) * | 1975-06-13 | 1978-08-15 | Nippon Steel Corporation | Method and apparatus for repairing damaged surface of refractory lined vessel |
| CN1371884A (en) * | 2001-02-22 | 2002-10-02 | 吴峰 | Material for repairing air brick of steel ladle |
| CN203401074U (en) * | 2013-08-28 | 2014-01-22 | 武汉钢铁集团精鼎工业炉有限责任公司 | Thermal state repairing device for steel ladle ventilating brick cup |
| CN205110769U (en) * | 2015-09-30 | 2016-03-30 | 本钢板材股份有限公司 | Ladle bottom distributing device |
| CN105562667A (en) * | 2015-12-18 | 2016-05-11 | 洛阳利尔耐火材料有限公司 | Tool used for repairing steel ladle pocket block and repairing method of steel ladle pocket block |
| CN108031829A (en) * | 2017-12-13 | 2018-05-15 | 钢城集团凉山瑞海实业有限公司 | Hot ladle pocket block repairing mould and restorative procedure |
| CN108405842A (en) * | 2018-05-14 | 2018-08-17 | 洛阳轩石高温材料有限公司 | The novel making of air brick of steel ladle and building method |
| CN210254213U (en) * | 2019-06-13 | 2020-04-07 | 洛阳利尔耐火材料有限公司 | Brick cup repairing device for air brick |
| CN211386886U (en) * | 2020-01-08 | 2020-09-01 | 成都府天高温材料科技有限公司 | Online hot patching device of ladle external mounted air brick cup |
-
2021
- 2021-01-14 CN CN202110048031.4A patent/CN112872343A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4107244A (en) * | 1975-06-13 | 1978-08-15 | Nippon Steel Corporation | Method and apparatus for repairing damaged surface of refractory lined vessel |
| CN1371884A (en) * | 2001-02-22 | 2002-10-02 | 吴峰 | Material for repairing air brick of steel ladle |
| CN203401074U (en) * | 2013-08-28 | 2014-01-22 | 武汉钢铁集团精鼎工业炉有限责任公司 | Thermal state repairing device for steel ladle ventilating brick cup |
| CN205110769U (en) * | 2015-09-30 | 2016-03-30 | 本钢板材股份有限公司 | Ladle bottom distributing device |
| CN105562667A (en) * | 2015-12-18 | 2016-05-11 | 洛阳利尔耐火材料有限公司 | Tool used for repairing steel ladle pocket block and repairing method of steel ladle pocket block |
| CN108031829A (en) * | 2017-12-13 | 2018-05-15 | 钢城集团凉山瑞海实业有限公司 | Hot ladle pocket block repairing mould and restorative procedure |
| CN108405842A (en) * | 2018-05-14 | 2018-08-17 | 洛阳轩石高温材料有限公司 | The novel making of air brick of steel ladle and building method |
| CN210254213U (en) * | 2019-06-13 | 2020-04-07 | 洛阳利尔耐火材料有限公司 | Brick cup repairing device for air brick |
| CN211386886U (en) * | 2020-01-08 | 2020-09-01 | 成都府天高温材料科技有限公司 | Online hot patching device of ladle external mounted air brick cup |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210601 |