CN209568125U - A kind of outer nozzle brick and the converter slag-resisting device with the outer nozzle brick - Google Patents
A kind of outer nozzle brick and the converter slag-resisting device with the outer nozzle brick Download PDFInfo
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- CN209568125U CN209568125U CN201920107687.7U CN201920107687U CN209568125U CN 209568125 U CN209568125 U CN 209568125U CN 201920107687 U CN201920107687 U CN 201920107687U CN 209568125 U CN209568125 U CN 209568125U
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- brick
- outer nozzle
- nozzle brick
- sliding plate
- cylinder
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Abstract
The utility model discloses a kind of outer nozzle bricks, including cylinder-shaped brick body and for the fastener of securing barrel shape brick body, cylinder-shaped brick body is provided with the steel outlet hole for cooperating sliding plate brick to flow out molten steel, and the upper end of cylinder-shaped brick body is provided with the flat mouth for cooperating with sliding plate brick.The way of contact due to passing through flat mouth and plane between outer nozzle brick and sliding plate brick connects, therefore it can increase the contact area of outer nozzle brick and sliding plate brick, to keep the connection of outer nozzle brick and sliding plate brick stronger reliable, outer nozzle brick can also be kept cracked to avoid because thermal stress is concentrated, to extend the service life of outer nozzle brick, meet the needs that components service life is continuously improved in steel mill, improves the production efficiency of converter slag-resisting device.The invention also discloses a kind of converter slag-resisting devices including above-mentioned outer nozzle brick.
Description
Technical field
The utility model relates to converter technical field of refractory materials, more specifically to a kind of outer nozzle brick, in addition,
The utility model further relates to a kind of converter slag-resisting device including above-mentioned outer nozzle brick.
Background technique
The steel slag generated in pneumatic steelmaking be it is harmful, slag when converter tapping includes three parts: pre-slag, intermediate slag
With later period slag.Blocking dregs of converter furnace sliding plate is the converter slag-resisting new technology of rising in recent years, the technology and converter slag infrared detection
Technology combines, and achieves good effect.Converter tapping early period, tapping 100% pushing off the slag of later period may be implemented；Molten steel is reduced to return
Phosphorus returns sulphur, improves yield of alloy；It reduces steel inclusion, improve molten steel cleanliness；It reduces ladle dry slag, extend the resistance to material of ladle
Service life etc. creates condition for the excellent steel product of converter producing high quality, high technology content and high added value.
In the prior art, outer nozzle brick includes: cylinder body, and steel bushing is cased with outside ontology, and steel bushing is the low boss in straight barrel
Rank inversion type；Steel outlet hole inlays zirconia refractory in steel outlet hole axially through cylinder body.
Outer nozzle brick in the prior art generally uses groove structure, is used cooperatively with the sliding plate brick with boss structure,
The presence of groove part increases the difficulty of outer mouth of a river bricks die manufacture, simultaneously because what outer nozzle brick was generally bonded by chamotte
Mode is connect with sliding plate brick, the smearing and cleaning of the outer nozzle brick inconvenience chamotte with groove structure；In addition groove part with
Sliding plate brick contact area is limited, reduces effective usable floor area of outer nozzle brick, to keep the service life of outer nozzle brick limited.
In conclusion how to provide a kind of longer outer nozzle brick of service life, be current those skilled in the art urgently
It solves the problems, such as.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of longer outer nozzle bricks of service life, and can make
The process for smearing, clearing up chamotte is more convenient.
The another object of the utility model is to provide a kind of converter slag-resisting device including above-mentioned outer nozzle brick.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of outer nozzle brick, the fastener including cylinder-shaped brick body and for fastening the cylinder-shaped brick body, the cylinder
Shape brick body be provided with for cooperate sliding plate brick make molten steel flow out steel outlet hole, it is described cylindrical shape brick body upper end be provided with for
The flat mouth of sliding plate brick cooperation.
Preferably, the fastener includes the steel bushing for being set in the cylinder-shaped brick body peripheral part.
Preferably, the steel bushing is stretched out in the lower end surface of the cylinder-shaped brick body, contacts the molten steel to avoid the steel bushing.
Preferably, the steel bushing 10mm to 15mm is stretched out in the lower end surface of the cylinder-shaped brick body.
Preferably, chamotte is filled between the cylinder-shaped brick body and the steel bushing.
Preferably, the chamotte is expansion chamotte.
Preferably, the fastener further includes the iron hoop for being set to the cylinder-shaped brick body peripheral part.
Preferably, upper surface 2mm to 5mm of the iron hoop apart from the cylinder-shaped brick body.
Preferably, the width of the iron hoop be 20mm to 30mm, the iron hoop with a thickness of 2mm to 4mm.
A kind of converter slag-resisting device, including sliding plate brick, outer nozzle brick and inner nozzle brick, the outer nozzle brick and the interior water
What mouth brick and the sliding plate brick were used cooperatively, the outer nozzle brick is outer nozzle brick described in any of the above embodiments.
Outer nozzle brick provided by the utility model, including cylinder-shaped brick body and for the fastener of securing barrel shape brick body,
Cylinder-shaped brick body be provided with for cooperate sliding plate brick make molten steel flow out steel outlet hole, cylinder-shaped brick body upper end be provided with for cunning
The flat mouth of plate brick cooperation.
During use, the flat mouth of the upper end of outer nozzle brick is used cooperatively with sliding plate brick, smoothly flows out molten steel.
The way of contact due to passing through flat mouth and plane between outer nozzle brick and sliding plate brick connects, and can increase outer water
The contact area of mouthful brick and sliding plate brick, to keep the connection of outer nozzle brick and sliding plate brick stronger, reliable, can also to avoid because
Thermal stress is concentrated and keeps outer nozzle brick cracked, to extend the service life of outer nozzle brick, meets steel mill and is continuously improved zero
The needs of component service life improve the production efficiency of converter slag-resisting device；In addition, passing through fire between outer nozzle brick and sliding plate brick
Mud bonding, sliding plate brick and outer nozzle brick use the fit system of plane and flat mouth, can be convenient the smearing and cleaning of chamotte, make to give birth to
Efficiency is produced to improve.
In addition, outer nozzle brick substitutes groove structure in the prior art using flat mouth, the production system of outer nozzle brick can be made
It is more convenient to make process, keeps mould structure simpler, product qualification rate improves, to reduce production cost.
In addition, the utility model also provides a kind of converter slag-resisting device including above-mentioned outer nozzle brick.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the diagrammatic cross-section of the specific embodiment one of outer nozzle brick provided by the utility model.
In Fig. 1:
1 it is cylinder-shaped brick body, 2 be steel bushing, 3 be expansion chamotte, 4 be iron hoop, 5 is steel outlet hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The core of the utility model is to provide a kind of outer nozzle brick, keeps the smearing of chamotte and scale removal process more convenient.This
Another core of utility model is to provide a kind of converter slag-resisting device including above-mentioned outer nozzle brick.
Referring to FIG. 1, Fig. 1 is the diagrammatic cross-section of the specific embodiment one of outer nozzle brick provided by the utility model.
Outer nozzle brick provided in this embodiment includes cylinder-shaped brick body 1 and the fastener for securing barrel shape brick body 1, circle
Tubular brick body 1 is provided with the steel outlet hole 5 for cooperating sliding plate brick to flow out molten steel, and the upper end of cylinder-shaped brick body 1, which is provided with, to be used for
With the flat mouth of sliding plate brick cooperation.
During use, the upper transverse plane of outer nozzle brick is coupled with sliding plate brick, for making molten steel by steel outlet hole 5
It smoothly flows out.
The way of contact due to passing through flat mouth and plane between outer nozzle brick and sliding plate brick connects, and can increase outer water
The contact area of mouth brick and sliding plate brick, to keep the connection of outer nozzle brick and sliding plate brick stronger reliable；It can also keep away simultaneously
Exempt from the phenomenon that keeping outer nozzle brick cracked because of thermal stress concentration and scrap, thus extend the service life of outer nozzle brick, it is full
The needs of components service life are continuously improved in sufficient steel mill, improve the production efficiency of converter slag-resisting device；In addition, outer nozzle brick
It is bonded between sliding plate brick by chamotte, sliding plate brick and outer nozzle brick can be convenient fire using the connection type of plane and flat mouth
The smearing and cleaning of mud shorten the time used in the replacement process of outer nozzle brick or sliding plate brick, improve production efficiency.
In addition, outer nozzle brick substitutes groove structure in the prior art using flat mouth, the production system of outer nozzle brick can be made
It is more convenient to make process, keeps mould structure simpler, product qualification rate is improved, to reduce production cost.
It needs to be illustrated, fastener can be steel bushing 2, be also possible to satisfactory other structures, specific root
It is determined according to actual conditions.
Preferably, under cylinder-shaped brick body 1 is the structure with circular step, and the upper end size of cylinder-shaped brick body 1 is greater than
Size is held, fastener can be set to the shape cooperated with cylinder-shaped brick body 1.
It needs to be illustrated, during use, outer nozzle brick is fixedly connected with sliding plate brick, it is preferred that outer water
Hole in steel outlet hole 5 and sliding plate brick on mouth brick for flowing out molten steel is coaxially disposed.
Preferably, the inner wall of steel outlet hole 5 is provided with protective coating, avoids molten steel washing away and corroding to steel outlet hole 5.When
So, resistance to erosion, the corrosion-resistant property that steel outlet hole 5 can also be improved using other modes, are determined, herein with specific reference to actual conditions
It does not repeat them here.
Preferably, steel outlet hole 5 is cylindric steel outlet hole.
On the basis of the above embodiments, further fastener can be defined, making fastener includes being set in circle
The steel bushing 2 of 1 peripheral part of tubular brick body.
The coefficient of expansion is different when expanding with heat and contract with cold in order to avoid cylinder-shaped brick body 1 from steel bushing 2, can cylinder-shaped brick body 1 with
Setting can be resistant to the filler of high temperature between steel bushing 2.
Preferably, the shape of the shape of steel bushing 2 and cylinder-shaped brick body 1 matches so that cylinder-shaped brick body 1 and steel bushing 2 it
Between gap be uniformly distributed.
On the basis of the above embodiments, in order to avoid the high-temperature molten steel scaling loss that steel bushing 2 outflows, cylinder-shaped brick can be made
Steel bushing 2 is stretched out in the lower end surface of body 1, contacts molten steel to avoid steel bushing 2.
During use, when molten steel flows out, converter needs are tilted a certain angle, when the lower end surface of cylinder-shaped brick body 1
When concordant with steel bushing 2, molten steel outflow is easy to encounter steel bushing 2, is destroyed the end face of steel bushing 2, convex structure occurs, is commonly called as growing
Tumor, to influence the service life of outer nozzle brick and the pushing off the slag effect of converter slag-resisting device.
Preferably, it is 10mm between 15mm that the length of steel bushing 2 is stretched out in the lower end surface of cylinder-shaped brick body 1.
The thickness of the needs of in order to meet lightweight and save the cost, steel bushing 2 need to be under the premise of meeting the requirements as far as possible
It is thin, to save production cost, while also mitigating the weight of outer nozzle brick, it is easy to install and replace.
On the basis of the above embodiments, it is filled with chamotte between cylinder-shaped brick body 1 and steel bushing 2, cylinder-shaped brick can be made
Connection between body 1 and steel bushing 2 more fastens.
Preferably, the chamotte filled between cylinder-shaped brick body 1 and steel bushing 2 is expansion chamotte 3, in the mistake of outer nozzle brick work
Cheng Zhong, since the coefficient of expansion of cylinder-shaped brick body 1 is less than the coefficient of expansion of steel bushing 2, so expansion chamotte 3 is selected to be filled,
So that the two is closely linked, cylinder-shaped brick body 1 is protected.
On the basis of the above embodiments, fastener further includes the iron hoop 4 for being set to the peripheral part of cylinder-shaped brick body 1.
Preferably, iron hoop 4 is set at the upper surface 2mm to 5mm of the cylinder-shaped brick body 1 of distance, and the width of iron hoop 4 is 20mm
To between 30mm, iron hoop 4 with a thickness of 2mm to 4mm.
Preferably, iron hoop 4 is even width and structure in homogeneous thickness.
The quantity of iron hoop 4 can be 1,2 or 3, be also possible to it is multiple, with specific reference to the size of cylinder-shaped brick body 1
And the demand of production process determines that this will not be repeated here.
When cylinder-shaped brick body 1 is columnar structured with two-stage step, it is preferred that iron hoop 4 is set to cylinder-shaped brick
The peripheral part of 1 the top step of body.
In order to enable iron hoop 4 to play better fastening effect, iron hoop 4 can be close to the outer surface of cylinder-shaped brick body 1
Setting.
In addition to above-mentioned outer nozzle brick, the utility model also provides a kind of turn including outer nozzle brick disclosed in above-described embodiment
Furnace skimming device, converter slag-resisting device include sliding plate brick, outer nozzle brick and inner nozzle brick, outer nozzle brick and inner nozzle brick be used for
Sliding plate brick is used cooperatively, and outer nozzle brick is outer nozzle brick mentioned above in present specification, the converter slag-resisting device other
Refer to the prior art for the structure of each section, and repeats no more herein.
In another embodiment, sliding plate brick includes inner slider brick and outer sliding plate brick, the fixed setting of inner slider brick, outer cunning
Plate brick is slidably arranged relative to inner slider brick, and outer nozzle brick is fixedly connected with outer sliding plate brick, outer sliding plate brick and the framed company of sliding
It connects, sliding is framed to be pushed by actuator cylinder, and converter slag-resisting device includes the control unit for controlling outer sliding plate brick sliding, example
Such as: can be PLC control system.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.Institute provided by the utility model
There is any combination mode of embodiment in the protection scope of this utility model, this will not be repeated here.
The converter slag-resisting device to outer nozzle brick provided by the utility model and with the outer nozzle brick carries out above
It is discussed in detail.Specific case used herein is expounded the principles of the present invention and embodiment, the above implementation
The explanation of example is merely used to help understand the method and its core concept of the utility model.It should be pointed out that for the art
Those of ordinary skill for, without departing from the principle of this utility model, can also to the utility model carry out it is several
Improvement and modification, modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (10)
1. a kind of outer nozzle brick, which is characterized in that including cylinder-shaped brick body (1) and for fastening the cylinder-shaped brick body (1)
Fastener, the cylindrical shape brick body (1) are provided with the steel outlet hole (5) for cooperating sliding plate brick to flow out molten steel, the cylindrical shape
The upper end of brick body (1) is provided with the flat mouth for cooperating with sliding plate brick.
2. outer nozzle brick according to claim 1, which is characterized in that the fastener includes being set in the cylinder-shaped brick
The steel bushing (2) of body (1) peripheral part.
3. outer nozzle brick according to claim 2, which is characterized in that institute is stretched out in the lower end surface of the cylindrical shape brick body (1)
Steel bushing (2) are stated, contact the molten steel to avoid the steel bushing (2).
4. outer nozzle brick according to claim 3, which is characterized in that institute is stretched out in the lower end surface of the cylindrical shape brick body (1)
State steel bushing (2) 10mm to 15mm.
5. outer nozzle brick according to claim 4, which is characterized in that it is described cylindrical shape brick body (1) and the steel bushing (2) it
Between be filled with chamotte.
6. outer nozzle brick according to claim 5, which is characterized in that the chamotte is expansion chamotte (3).
7. outer nozzle brick according to claim 1-6, which is characterized in that the fastener further includes being set to institute
State the iron hoop (4) of cylinder-shaped brick body (1) peripheral part.
8. outer nozzle brick according to claim 7, which is characterized in that the iron hoop (4) is apart from the cylinder-shaped brick body (1)
Upper surface 2mm to 5mm.
9. outer nozzle brick according to claim 7, which is characterized in that the width of the iron hoop (4) is 20mm to 30mm, institute
State iron hoop (4) with a thickness of 2mm to 4mm.
10. a kind of converter slag-resisting device, which is characterized in that including sliding plate brick, outer nozzle brick and inner nozzle brick, the outer nozzle brick
It is used cooperatively with the inner nozzle brick and the sliding plate brick, the outer nozzle brick is claim 1-9 described in any item outer
Nozzle brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107687.7U CN209568125U (en) | 2019-01-22 | 2019-01-22 | A kind of outer nozzle brick and the converter slag-resisting device with the outer nozzle brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107687.7U CN209568125U (en) | 2019-01-22 | 2019-01-22 | A kind of outer nozzle brick and the converter slag-resisting device with the outer nozzle brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209568125U true CN209568125U (en) | 2019-11-01 |
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ID=68333249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920107687.7U Active CN209568125U (en) | 2019-01-22 | 2019-01-22 | A kind of outer nozzle brick and the converter slag-resisting device with the outer nozzle brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209568125U (en) |
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2019
- 2019-01-22 CN CN201920107687.7U patent/CN209568125U/en active Active
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