CN107116208A - A kind of building method of ladle composite fire liner - Google Patents
A kind of building method of ladle composite fire liner Download PDFInfo
- Publication number
- CN107116208A CN107116208A CN201710254918.2A CN201710254918A CN107116208A CN 107116208 A CN107116208 A CN 107116208A CN 201710254918 A CN201710254918 A CN 201710254918A CN 107116208 A CN107116208 A CN 107116208A
- Authority
- CN
- China
- Prior art keywords
- safe floor
- stones
- laying bricks
- ladle
- transition zone
- 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
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Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A kind of building method of ladle composite fire liner, the present invention relates to the building method of ladle liner, specially a kind of building method of ladle compound lining.Build safe floor by laying bricks or stones on the inside of heat-insulation layer, safe floor uses magnalium low-carbon brick masonry.Safe floor is built by laying bricks or stones using zigzag.Build working lining by laying bricks or stones on the inside of safe floor, transition zone is carried between working lining and safe floor.Side builds safe floor and working lining by laying bricks or stones during operation, while pouring transition zone.The inventive method is simple, it is easy to implement.Due to transition zone, and safe floor uses broached-tooth design building method so that the transition zone poured has obstructed the gap of safe floor and working lining produced by because building refractory brick by laying bricks or stones, and molten steel can not be into inside safe floor.The security and service life of ladle is greatly improved.Safe floor and transition zone are firmly combined with addition, building by laying bricks or stones and bringing the advantage that using zigzag, produced mechanical shock when equally protecting safe floor not unpacked will not produce crack.Solve the problems that existing ladle liner building method is present.
Description
Technical field
The present invention relates to the building method of ladle liner, specially a kind of building method of ladle compound lining.
Background technology
Ladle is the intermediate receptacle of connection steel-making and continuous casting, and almost all of molten steel furnace external refining process all must be in ladle
It is interior to complete；The quality of ladle operating mode had both influenceed steel quality, lining durability, the rhythm of production of preceding road steel making working procedure；Influence again after
Road refines the steel quality with continuous casting working procedure.But everything both depends on the quality and masonry quality of lining material in the ladle.It is existing
There are two kinds for building by laying bricks or stones substantially for lining material in the ladle in produce reality.One kind is that individual layer is built by laying bricks or stones, i.e., first pour safe floor, so
The method for building working lining by laying bricks or stones again afterwards, another is that compound building method, i.e. safe floor and working lining all use laying fireproof bricks.Using
The shortcoming for pouring the refractory lining of safe layer method formation is to pour uneven, entrained air bubbles or cavity in LIFT, if steel
Water encounters LIFT, is easy to wear bag under the heat erosion and impact of molten steel, directly affects the service life of ladle.Also it is exactly
The refractory material as pouring, then service life is short.Quality material is such as used, product cost is increased again.It is multiple using refractory brick
Conjunction is built by laying bricks or stones, and it has the disadvantage to be easy to destroy safe floor when working lining is removed in maintenance, safe floor is produced crack.Also it is exactly to build
Easily there is space in seam crossing when building safe floor with working lining in brick so that molten steel can pass through gap, burn out ladle shell.
Same influence service life.
The content of the invention
For above-mentioned situation, it is an object of the invention to provide a kind of inserted building method of ladle compound lining, and band
There is transition zone so that molten steel cannot directly enter inside refractory lining, improve the service life of ladle.
The present invention is adopted the technical scheme that to solve the above problems；Heat-insulation layer is carried on ladle outer casing inner wall,
Build safe floor on the inside of heat-insulation layer by laying bricks or stones, safe floor uses magnalium low-carbon brick masonry.Safe floor is built by laying bricks or stones using zigzag, i.e., by refractory brick
Every two blocks of small-sized refractory brick of use.Usual refractory brick length is 110 millimeters, and economy brick is then 80 millimeters.So that safe floor is
Zigzag structure.Build working lining by laying bricks or stones on the inside of safe floor, transition zone is carried between working lining and safe floor.Transition zone is using firm
Beautiful matter spinel pouring material.Transition region thickness is 3 centimeters.Side builds safe floor and working lining by laying bricks or stones during operation, while pouring transition zone.
The inventive method is simple, it is easy to implement.Due to transition zone, and safe floor uses the broached-tooth design side of building by laying bricks or stones
Method so that the transition zone poured has obstructed the gap of safe floor and working lining produced by because building refractory brick by laying bricks or stones, realizes seamless
Liner, molten steel can not enter inside safe floor.Do not impacted and chemical attack by molten steel so as to be effectively protected safe floor, greatly
Amplitude improves the security and service life of ladle.In addition, built by laying bricks or stones using zigzag bring the advantage that make safe floor and
Transition zone is firmly combined with, the mechanical shock for equally protecting safe floor produced when not unpacked, and will not produce crack.Solve
The problems that existing ladle liner building method is present.
Brief description of the drawings
Accompanying drawing is schematic structural view of the invention
1- ladle shell 2- heat-insulation layer 3- safe floor 4- transition zone 5- working linings
Embodiment
Example 1：Heat-insulation layer is carried on ladle outer casing inner wall, safe floor is built by laying bricks or stones on the inside of heat-insulation layer, safe floor uses aluminium
Magnesium low-carbon brick masonry.Safe floor is built by laying bricks or stones using zigzag, i.e., by refractory brick every two blocks of small-sized refractory brick of use.Usual refractory brick
Length is 110 millimeters, and economy brick is then 80 millimeters.So that safe floor is zigzag structure.Build working lining by laying bricks or stones on the inside of safe floor,
Transition zone is carried between working lining and safe floor.Transition zone uses corundum spinel pouring material.Transition region thickness is 3 public
Point.Side builds safe floor and working lining by laying bricks or stones during operation, while pouring transition zone.
In Tangshan, steel mill has carried out Follow-up observation to 10 150 tons of ladles, and actual use proves that this be combined is to compare
Preferably, 100 heats, bag age average 180 stoves are averagely refined, seam crossing does not ooze steel, the residual thick average 10- of slag line magnesia carbon brick
30mm, the residual thick average 10-30mm of containment wall brick, can meet the demand for security that ladle is used；Ladle bag age improves 31 stoves, and resistance to material disappears
Consumption reduction by 24%, the resistance to material performance of enterprises is significantly lifted；Steel mill gas consumption is substantially reduced, the ladle security having enough to meet the need online
Ensured.
Example 2：Heat-insulation layer is carried on ladle outer casing inner wall, safe floor is built by laying bricks or stones on the inside of heat-insulation layer, safe floor uses aluminium
Magnesium low-carbon brick masonry.Safe floor is built by laying bricks or stones using zigzag, i.e., by refractory brick every two blocks of small-sized refractory brick of use.Usual refractory brick
Length is 110 millimeters, and economy brick is then 80 millimeters.So that safe floor is zigzag structure.Build working lining by laying bricks or stones on the inside of safe floor,
Transition zone is carried between working lining and safe floor.Transition zone uses corundum spinel pouring material.Transition region thickness is 3 public
Point.Side builds safe floor and working lining by laying bricks or stones during operation, while pouring transition zone.
In Shandong, steel mill has carried out Follow-up observation to 15 50 tons of VD refining ladles, and actual use proves that this be combined is
More satisfactory, the average heats of LF+VD 90, bag age average 90 stoves, seam crossing does not ooze steel, the residual thick average 20- of slag line magnesia carbon brick
35mm, the residual thick average 25-35mm of containment wall brick, can meet the demand for security that ladle is used；Ladle bag age improves 22 stoves, and resistance to material disappears
Consumption reduction by 30.5%, the resistance to material performance of enterprises is significantly lifted；Steel mill gas consumption is substantially reduced, the ladle safety having enough to meet the need online
Property is ensured.
Claims (1)
1. a kind of building method of ladle composite fire liner, carries heat-insulation layer (2) on ladle shell (1) inwall, in insulation
Layer inner side builds safe floor (3) by laying bricks or stones, it is characterized in that；Safe floor is built by laying bricks or stones using zigzag, builds working lining (5) by laying bricks or stones on the inside of safe floor,
Transition zone (4) is carried between working lining and safe floor, side builds safe floor and working lining by laying bricks or stones during operation, while pouring transition zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710254918.2A CN107116208A (en) | 2017-04-11 | 2017-04-11 | A kind of building method of ladle composite fire liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710254918.2A CN107116208A (en) | 2017-04-11 | 2017-04-11 | A kind of building method of ladle composite fire liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107116208A true CN107116208A (en) | 2017-09-01 |
Family
ID=59725081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710254918.2A Pending CN107116208A (en) | 2017-04-11 | 2017-04-11 | A kind of building method of ladle composite fire liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107116208A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935871A (en) * | 2020-01-02 | 2020-03-31 | 新余钢铁股份有限公司 | Steel ladle structure and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63165063A (en) * | 1986-12-26 | 1988-07-08 | Tokyo Yogyo Co Ltd | Method for installation of vessel for molten metal |
| CN201644776U (en) * | 2010-04-06 | 2010-11-24 | 武汉科技大学 | Steel ladle lining based on gradient heat insulation |
| CN103252487A (en) * | 2013-05-27 | 2013-08-21 | 德清县钢友耐火材料有限公司 | Novel steel ladle |
| CN103464734A (en) * | 2013-08-27 | 2013-12-25 | 海城市东和泰迪冶金炉材有限公司 | Safe steel ladle lining and building method thereof |
| CN104226970A (en) * | 2014-09-16 | 2014-12-24 | 武汉钢铁(集团)公司 | Optimized long-life low-material-consumption refining ladle |
| CN104399959A (en) * | 2014-12-02 | 2015-03-11 | 武汉钢铁(集团)公司 | Masonry construction capable of increasing service cycle of bottom of steel ladle |
| CN204220980U (en) * | 2014-11-07 | 2015-03-25 | 马鞍山市鑫海耐火材料有限责任公司 | A kind of trouble free service layer ladle liner |
-
2017
- 2017-04-11 CN CN201710254918.2A patent/CN107116208A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63165063A (en) * | 1986-12-26 | 1988-07-08 | Tokyo Yogyo Co Ltd | Method for installation of vessel for molten metal |
| CN201644776U (en) * | 2010-04-06 | 2010-11-24 | 武汉科技大学 | Steel ladle lining based on gradient heat insulation |
| CN103252487A (en) * | 2013-05-27 | 2013-08-21 | 德清县钢友耐火材料有限公司 | Novel steel ladle |
| CN103464734A (en) * | 2013-08-27 | 2013-12-25 | 海城市东和泰迪冶金炉材有限公司 | Safe steel ladle lining and building method thereof |
| CN104226970A (en) * | 2014-09-16 | 2014-12-24 | 武汉钢铁(集团)公司 | Optimized long-life low-material-consumption refining ladle |
| CN204220980U (en) * | 2014-11-07 | 2015-03-25 | 马鞍山市鑫海耐火材料有限责任公司 | A kind of trouble free service layer ladle liner |
| CN104399959A (en) * | 2014-12-02 | 2015-03-11 | 武汉钢铁(集团)公司 | Masonry construction capable of increasing service cycle of bottom of steel ladle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935871A (en) * | 2020-01-02 | 2020-03-31 | 新余钢铁股份有限公司 | Steel ladle structure and manufacturing method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170901 |
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| WD01 | Invention patent application deemed withdrawn after publication |