CN107282917B - A kind of novel ladle and its packet are along building by laying method - Google Patents
A kind of novel ladle and its packet are along building by laying method Download PDFInfo
- Publication number
- CN107282917B CN107282917B CN201710609764.4A CN201710609764A CN107282917B CN 107282917 B CN107282917 B CN 107282917B CN 201710609764 A CN201710609764 A CN 201710609764A CN 107282917 B CN107282917 B CN 107282917B
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- Prior art keywords
- brick
- magnesia carbon
- slag line
- ladle
- carbon brick
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention provides a kind of novel ladles and its packet edge to build by laying method, including ladle shell, the pouring materialfor steel ladle permanent layer of the ladle case inside is set, slag line magnesia carbon brick working lining on the inside of the pouring materialfor steel ladle permanent layer is set, in ladle shell ladle mouth top inner side wall, brick-pressing board is uniformly fixedly installed along ladle mouth circumferencial direction above slag line carbon magnesia brick working lining, the outer edge of slag line magnesia carbon brick working lining is more prominent than the outer edge of brick-pressing board, the setting sealing cast bed of material on brick-pressing board and slag line magnesia carbon brick working lining, to cover brick-pressing board and slag line magnesia carbon brick working lining.The present invention is arranged using " ┏ " font brick-pressing board in ladle case inside wall ladle mouth and above slag line magnesia carbon brick working lining, enhance the compression effect of slag line magnesia carbon brick, trapezoidal magnesia carbon brick is set between brick-pressing board and slag line magnesia carbon brick, further enhance the fastness of slag line magnesia carbon brick, sealing and the loosening of residue pile are avoided, the safety for improving ladle while refining requires is met.
Description
Technical field
The invention belongs to steelmaking technical fields, and in particular to a kind of novel ladle and its packet are along building by laying method.
Background technique
Ladle is the important pyrometallurgy container of iron and steel enterprise, for storing high-temperature molten steel, to the safety in production of steel mill,
Technology controlling and process plays a crucial role.Steel ladle edge is used to compress the ladle slag line brick under it, prevents ladle slag line brick loose
It moves or falls off.In ladle use process, due in refining smelting process toward splashing steel slag and continuous casting knot on steel ladle edge
The when of falling slag after beam, inevitably hangs up residual steel residue in Bao Kou, online in next ladle in use, wanting to meet refining treatment
It asks, needs to clear up packet along steel slag, when hooking steel slag (being commonly called as packet mouth) with anchor, easily lead to sealing and residue pile pine
It is dynamic to fall off, influence the normal use of ladle.
Currently, domestic steel mill mostly uses greatly the method for flat-plate compressed brick plate or the brick-pressing board cooperation special form brick with gradient to steel
Packet is along sealing.Using plate brick-pressing board to steel ladle edge sealing after, expanded by heating is easy to upwarp and leads repeatedly in use
Cause pressure brick disabler；Using with gradient brick-pressing board cooperation special form brick to steel ladle edge sealing after, though can solve be heated it is swollen
Swollen problem, but any block of special form brick loosens or falls off can all cause the loosening of whole circle closer, there is very big safety
Hidden danger.
Summary of the invention
To solve the technical issues of above-mentioned ladle slag line brick is loosened or fallen off, the present invention provides a kind of novel ladle and its packet
Build by laying method in edge.The present invention is arranged using " ┏ " font brick-pressing board in ladle case inside wall ladle mouth and in slag line magnesia carbon brick work
Make to enhance the compression effect of slag line magnesia carbon brick above layer, trapezoidal magnesium is arranged between brick-pressing board and top layer's slag line magnesia carbon brick
Carbon brick can further enhance the fastness of slag line magnesia carbon brick, avoid sealing and the loosening of residue pile, meet what refining required
The safety of ladle is improved simultaneously.
Term is explained:
In this application, in ladle longitudinal cross-section, the distance of all resistance to material up and down directions is known as height, and lateral length claims
For thickness.
To achieve the above object, the technical solution adopted by the present invention are as follows:
The pouring materialfor steel ladle permanent layer of the ladle case inside is arranged in a kind of novel ladle, including ladle shell, if
The slag line magnesia carbon brick working lining on the inside of the pouring materialfor steel ladle permanent layer is set, in ladle shell ladle mouth top inner side wall, slag
Brick-pressing board, the outer edge of slag line magnesia carbon brick working lining is uniformly fixedly installed along ladle mouth circumferencial direction above line magnesium-carbon brick working lining
It is more prominent than the outer edge of brick-pressing board, the setting sealing cast bed of material on brick-pressing board and slag line magnesia carbon brick working lining, to cover
Brick-pressing board and slag line magnesia carbon brick working lining.
As currently preferred, the brick-pressing board is " ┏ " font steel plate.
The setting of " ┏ " font brick-pressing board can efficiently control the deformation of brick-pressing board, while enhance to slag line magnesia carbon brick
Pressuring action prevents slag line magnesia carbon brick from loosening or falling off.
As currently preferred, the left-half bottom surface of " ┏ " the font brick-pressing board is in slag line magnesia carbon brick working lining
Topmost between two pieces of magnesia carbon bricks seam areas top position, portion bottom surface and slag line magnesia carbon brick work on " ┏ " font brick-pressing board
Make layer equipped with gap.
As currently preferred, the gap of portion bottom surface and slag line magnesia carbon brick working lining on " ┏ " the font brick-pressing board
In be inserted into the trapezoidal magnesia carbon brick manually cut.
As currently preferred, the pouring materialfor steel ladle permanent layer with a thickness of 60mm, in slag line magnesia carbon brick working lining
Magnesia carbon brick with a thickness of 200-220mm, the maximum gauge of " ┏ " font brick-pressing board is 180mm, and the height of trapezoidal magnesia carbon brick is 30-
40mm, the height for sealing cast bed of material is 110-130mm.
As currently preferred, it is described between the brick-pressing board of ladle mouth circumferencial direction setting between be divided into 100mm.
A kind of packet of above-mentioned novel ladle is along building by laying method, comprising:
Step 1: slag line magnesia carbon brick working lining normally to be built by laying to the layer second from the bottom of number from the bottom up when building by laying ladle；
Step 2: on the inner sidewall of ladle shell, away from slag line magnesia carbon brick working lining layer upper surface 120- second from the bottom
At 130mm, " ┏ " font brick-pressing board is welded；
Step 3: building by laying slag line magnesia carbon brick working lining one layer of slag line magnesia carbon brick topmost；
Step 4: according to part on slag line magnesia carbon brick working lining one piece of the top slag line magnesia carbon brick and " ┏ " font brick-pressing board
The above-mentioned trapezoidal magnesia carbon brick apart from height is cut in the distance between bottom surface on brick cutting machine, and is inserted into the work of slag line magnesia carbon brick
Between layer and font brick-pressing board top " ┏ " point；
Step 5: being put into Special mould on slag line magnesia carbon brick working lining topmost one piece of slag line magnesia carbon brick, pours into and become reconciled
Sealing castable, with shock club knot sealing cast bed of material；
Step 6: the another sealing castable more dry with a part, is covered at the top of sealing cast bed of material and is patted in fact with spade,
At convex, to protect packet mouth steel plate；
Step 7: building by laying good ladle stands a period of time, demoulding.
The present invention has the improvement of three aspects, on the one hand, ladle inner sidewall circumferencial direction is provided with pressure brick in steel ladle opening
Plate can compress slag line magnesia carbon brick working lining, prevent the loosening of slag line magnesia carbon brick working lining or fall off, and improve the present invention
The safety of novel ladle；On the other hand, the setting of trapezoidal magnesia carbon brick is inserted between brick-pressing board and slag line magnesia carbon brick working lining, it can be with
The applied stress of appropriateness buffering slag line magnesia carbon brick working lining expanded by heating, while existing gradient abnormal shape magnesia carbon brick bring being avoided to hold
Caducous problem；The third aspect uses Special mould and shock club between brick-pressing board, above slag line magnesia carbon brick working lining
The sealing castable of knotting ensure that the intensity of sealing castable, can effectively protect brick-pressing board, slag line magnesia carbon brick working lining and steel
Packet is along steel plate.
Compared with prior art, the invention has the benefit that
(1) generation of slag line drill steel accident can be reduced using novel ladle of the invention, it is ensured that production safety smoothly into
Row.
(2) Novel steel packet of the present invention is fixed slag line magnesia carbon brick working lining advantageously with " ┏ " font brick-pressing board,
Reinforce the stability of slag line magnesia carbon brick working lining, convenient hanger satchel mouth advantageously reduces field trash, guarantees Molten Steel Cleanliness, mentions
High product quality, at the same can be to avoid packet mouth be hooked when, the loosening of Ladle slag line magnesia carbon brick working lining or fall off, improve ladle
Service life.
(3) present invention setting sealing castable advantageously on " ┏ " font brick-pressing board and slag line magnesia carbon brick working lining
Layer, while to cover " ┏ " font brick-pressing board and slag line magnesia carbon brick working lining, protects " ┏ " font brick-pressing board and ladle
Shell prevents it by high-temperature molten steel scorification, ladle involucrum service life can be improved, reduce maintenance frequency, reduces maintenance cost
With spare part expense, increase economic efficiency.
Detailed description of the invention
Fig. 1 is steel ladle edge the schematic diagram of the section structure of the invention；
In figure: 1- slag line magnesia carbon brick working lining, the trapezoidal magnesia carbon brick of 2-, 3- seal cast bed of material, 4- brick-pressing board, 5- ladle shell
Body, 6- pouring materialfor steel ladle permanent layer, 7- Special mould.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
With reference to a kind of novel steel ladle edge the schematic diagram of the section structure shown in FIG. 1, a kind of packet edge side of building by laying of novel ladle
Method, comprising the following steps:
Step 1: slag line magnesia carbon brick working lining 1 normally to be built by laying to inverses several from the bottom up when carrying out building by laying ladle
The second layer；
Step 2: in remaining the last layer slag line magnesia carbon brick, on the inner sidewall of ladle shell 5, away from slag line magnesia carbon brick
At 1 second from the bottom layer of upper surface 130mm of working lining, along the circumferential direction uniform welding " ┏ " the font brick-pressing board 4 on inner sidewall, pressure
4 spacing of brick plate is 100mm；
Step 3: then proceeding to build by laying the one layer of slag line magnesia carbon brick topmost of slag line magnesia carbon brick working lining 1；
Step 4: after slag line magnesia carbon brick working lining 1 is built by laying, according to topmost one piece of slag line magnesia carbon brick working lining 1
The distance between portion bottom surface on slag line magnesia carbon brick and " ┏ " font brick-pressing board 4 cuts above-mentioned distance height on brick cutting machine
Trapezoidal magnesia carbon brick 2, and be inserted into slag line magnesia carbon brick working lining 1 one piece of the top slag line magnesia carbon brick and " ┏ " font brick-pressing board
Between 4 top point；
Step 5: be put into Special mould 7 on slag line magnesia carbon brick working lining 1 topmost one piece of slag line magnesia carbon brick, pour into and
Good sealing castable is knotted with shock club and seals cast bed of material 3；It using Special mould 7, is knotted, is compared existing with shock club
The manually castable that spade is patted, improves casting material strength, extends service life；
Step 6: sealing castable another and that a part is more dry, is covered on 3 top of sealing cast bed of material and is patted with spade
It is real, at convex, to protect packet mouth steel plate；
Step 7: building by laying good ladle stands a period of time, demoulding.
A kind of novel ladle is prepared according to the method for building by laying of above-mentioned novel steel ladle edge, which includes ladle shell
5, the pouring materialfor steel ladle permanent layer 6 on 5 inner sidewall of ladle shell, on 6 inner sidewall of pouring materialfor steel ladle permanent layer
Slag line magnesia carbon brick working lining 1, in 5 ladle mouth top inner side wall of ladle shell, 1 top of slag line magnesia carbon brick working lining is along ladle mouth
" ┏ " font brick-pressing board 4 is fixedly installed in circumferencial direction interval 100mm uniform welding, the height of part on " ┏ " font brick-pressing board 4
Be reduction " ┏ " font brick-pressing board by thermal stress deformation degree for 20mm, guarantee to compress effect, slag line magnesia carbon brick working lining 1 it is outer
Edge is more prominent than the outer edge of brick-pressing board 4, and setting sealing is poured on " ┏ " font brick-pressing board 4 and slag line magnesia carbon brick working lining 1
Material feeding layer 3 protects brick-pressing board 4 and ladle shell 5 covering " ┏ " font brick-pressing board 4 and slag line magnesia carbon brick working lining 1,
Prevent it by high-temperature molten steel scorification.
Brick-pressing board can efficiently control the deformation of brick-pressing board, while enhancing to slag line magnesium using the setting of " ┏ " font
The pressuring action of carbon brick prevents slag line magnesia carbon brick from loosening or falling off.
For the fastness for further strengthening slag line magnesia carbon brick working lining 1, and to alleviate magnesia carbon brick thermal expansion bring heat
Stress, portion bottom surface and slag line magnesia carbon brick working lining 1 are equipped with gap on " ┏ " the font brick-pressing board 4, according to the size in gap,
Be inserted between " ┏ " the font brick-pressing board 4 and top layer's magnesia carbon brick of slag line magnesia carbon brick working lining 1 manually cut it is trapezoidal
Magnesia carbon brick 2.
In the present embodiment, the pouring materialfor steel ladle permanent layer 6 with a thickness of 60mm, in slag line magnesia carbon brick working lining 1
Magnesia carbon brick is 180mm, trapezoidal magnesia carbon brick 2 with a thickness of 200mm, the maximum gauge (i.e. the thickness of part on brick-pressing board 4) of brick-pressing board 4
Height be 30mm, sealing cast bed of material 3 height be 110mm.
The generation of slag line drill steel accident can be reduced using novel ladle of the invention, it is ensured that production safety is gone on smoothly；
Slag line magnesia carbon brick working lining is fixed advantageously with " ┏ " font brick-pressing board in the novel ladle of the present invention, reinforces slag line magnesium
The stability of carbon brick working lining, convenient hanger satchel mouth advantageously reduce field trash, guarantee Molten Steel Cleanliness, improve product matter
Amount, at the same can be to avoid packet mouth be hooked when, the loosening of Ladle slag line magnesia carbon brick working lining or fall off, improve ladle service life；
Sealing cast bed of material is arranged in the present invention on " ┏ " font brick-pressing board and slag line magnesia carbon brick working lining, to cover " ┏ " font
While brick-pressing board and slag line magnesia carbon brick working lining, " ┏ " font brick-pressing board and ladle shell are protected, prevents it by high-temperature steel
Ladle involucrum service life can be improved in water scorification, reduces maintenance frequency, reduces maintenance cost and spare part expense, improves economical
Benefit.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of ladle, including ladle shell (5), the pouring materialfor steel ladle permanent layer being arranged on the inside of the ladle shell (5)
(6), the slag line magnesia carbon brick working lining (1) being arranged on the inside of the pouring materialfor steel ladle permanent layer (6), which is characterized in that in ladle
Pressure is uniformly fixedly installed along ladle mouth circumferencial direction in shell (5) ladle mouth top inner side wall, slag line magnesia carbon brick working lining (1) top
The outer edge of brick plate (4), slag line magnesia carbon brick working lining (1) is more prominent than the outer edge of brick-pressing board (4), in brick-pressing board (4) and slag line
Sealing cast bed of material (3) is arranged in magnesia carbon brick working lining (1) above, to cover brick-pressing board (4) and slag line magnesia carbon brick working lining
(1)；
The brick-pressing board (4) is " ┏ " font steel plate；The left-half bottom surface of " ┏ " the font brick-pressing board (4) is in slag line magnesium carbon
The top position of seam areas between two pieces of the top magnesia carbon brick of brick working lining (1), part bottom on " ┏ " font brick-pressing board (4)
Face and slag line magnesia carbon brick working lining (1) are equipped with gap；Portion bottom surface and slag line magnesia carbon brick work on " ┏ " the font brick-pressing board (4)
Make to wedge the trapezoidal magnesia carbon brick manually cut in the gap of layer (1).
2. a kind of ladle according to claim 1, which is characterized in that the pouring materialfor steel ladle permanent layer (6) with a thickness of
60mm, the magnesia carbon brick in slag line magnesia carbon brick working lining (1) is with a thickness of 200-220mm, the maximum gauge of " ┏ " font brick-pressing board (4)
For 180mm, the height of trapezoidal magnesia carbon brick (2) is 30-40mm, and the height of sealing cast bed of material (3) is 110-130mm.
3. a kind of ladle according to claim 2, which is characterized in that described " ┏ " word along the setting of ladle mouth circumferencial direction
100mm is divided between type brick-pressing board (4).
4. method is built by laying on a kind of packet edge of described in any item ladles of claims 1 to 3, comprising:
Step 1: slag line magnesia carbon brick working lining (1) normally to be built by laying to the layer second from the bottom of number from the bottom up when building by laying ladle；
Step 2: on the inner sidewall of ladle shell (5), away from slag line magnesia carbon brick working lining (1) layer upper surface 120- second from the bottom
At 130mm, weld " ┏ " font brick-pressing board (4)；
Step 3: building by laying slag line magnesia carbon brick working lining (1) one layer of slag line magnesia carbon brick topmost；
Step 4: according to slag line magnesia carbon brick working lining (1) one piece of the top slag line magnesia carbon brick and " ┏ " font brick-pressing board (4) top
Divide the distance between bottom surface, the above-mentioned trapezoidal magnesia carbon brick (2) apart from height is cut on brick cutting machine, and wedge slag line magnesia carbon brick
Between working lining (1) and " ┏ " font brick-pressing board (4) top point；
Step 5: be topmost put into Special mould (7) on one piece of slag line magnesia carbon brick in slag line magnesia carbon brick working lining (1), pour into and
Good sealing castable is knotted with shock club and seals cast bed of material (3)；
Step 6: the another sealing castable more dry with a part, is covered at the top of sealing cast bed of material (3) and is patted in fact with spade,
At convex, to protect packet mouth steel plate；
Step 7: building by laying good ladle stands a period of time, demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609764.4A CN107282917B (en) | 2017-07-25 | 2017-07-25 | A kind of novel ladle and its packet are along building by laying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609764.4A CN107282917B (en) | 2017-07-25 | 2017-07-25 | A kind of novel ladle and its packet are along building by laying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107282917A CN107282917A (en) | 2017-10-24 |
| CN107282917B true CN107282917B (en) | 2019-08-09 |
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| CN201710609764.4A Active CN107282917B (en) | 2017-07-25 | 2017-07-25 | A kind of novel ladle and its packet are along building by laying method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385422A (en) * | 2018-04-16 | 2019-10-29 | 广东韶钢松山股份有限公司 | A kind of building method of steel ladle opening |
| CN108580866B (en) * | 2018-05-21 | 2020-06-05 | 山东钢铁集团日照有限公司 | Combined detachable embedded steel ladle edge |
| CN114472873B (en) * | 2020-11-13 | 2024-08-09 | 宝山钢铁股份有限公司 | Slag-sticking prevention ladle opening of electric furnace ladle and construction method thereof |
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| CN107282917A (en) | 2017-10-24 |
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