CN210702513U - Large-scale anti-burst ladle bottom impact area prefabricated part - Google Patents

Large-scale anti-burst ladle bottom impact area prefabricated part Download PDF

Info

Publication number
CN210702513U
CN210702513U CN201921529561.5U CN201921529561U CN210702513U CN 210702513 U CN210702513 U CN 210702513U CN 201921529561 U CN201921529561 U CN 201921529561U CN 210702513 U CN210702513 U CN 210702513U
Authority
CN
China
Prior art keywords
exhaust
medium
ladle bottom
burst
media
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.)
Active
Application number
CN201921529561.5U
Other languages
Chinese (zh)
Inventor
孙枫
王志强
蔡长秀
雷中兴
彭肖仟
刘毅
姚亚双
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Iron And Steel Group Refractory Materials Co ltd
Original Assignee
Wuhan Iron And Steel Group Refractory Materials Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Iron And Steel Group Refractory Materials Co ltd filed Critical Wuhan Iron And Steel Group Refractory Materials Co ltd
Priority to CN201921529561.5U priority Critical patent/CN210702513U/en
Application granted granted Critical
Publication of CN210702513U publication Critical patent/CN210702513U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The utility model discloses a large-scale anti-burst ladle bottom impact area prefab, including prefabricated section and exhaust medium, the prefabricated section is equipped with a plurality ofly, be equipped with the exhaust medium between a plurality of prefabricated sections, the melting point of exhaust medium is far less than the prefabricated section, the exhaust medium leaves exhaust passage after toasting the in-process and melting. The utility model has the advantages that: the production process is simple, and the problem that the product bursts in the baking process is thoroughly solved from the angle of reducing the extremely high steam pressure generated inside the large prefabricated part in the baking process.

Description

Large-scale anti-burst ladle bottom impact area prefabricated part
Technical Field
The utility model relates to a steel smelting ladle auxiliary structure technical field specifically indicates a striking district prefab at bottom of large-scale anti-burst ladle.
Background
In the steelmaking process, the ladle is not only a transfer container between the converter and the continuous casting, but also a secondary refining process. The secondary refining comprises the processes of molten steel deoxidation, molten steel homogenization, molten steel alloying, molten steel desulphurization, molten steel temperature regulation, molten steel decarburization, non-metallic inclusion change in molten steel, final steel slag change and formation and the like, and all the processes are carried out in a steel ladle, so the secondary refining is also called steel ladle refining. The bottom of the ladle is not only subjected to the strong impact force of the molten steel from the converter, but also receives the erosion effect of the steel slag brought by the steel tapping of the converter and the steel slag after casting.
In recent years, the bottoms of many large and medium-sized ladles are built by combining impact zone prefabricated members and bottom castable, wherein the impact zone prefabricated members are arranged for receiving molten steel impact, and the area of the impact zone prefabricated members is about 2-3m2The thickness of the large-scale prefabricated part is 250-400mm, and the large-scale prefabricated part belongs to a large-scale prefabricated part. The large prefabricated member is generally formed by pouring corundum or corundum plus spinel with water, the structure is very compact, the steam pressure at the center of the prefabricated member rises exponentially along with the rise of temperature in the baking process, and when the limit of the steam pressure which can be borne by the prefabricated member is lower than the steam pressure at the center, the prefabricated member can burst.
Disclosure of Invention
The utility model aims at solving the above problem, providing a striking district prefab at bottom of large-scale anti-burst ladle, its production process is simple, from reducing large-scale prefab and toasting the angle that the in-process inside produced high steam pressure, thoroughly solves this product and toasts the problem that the in-process appears bursting.
In order to realize the purpose, the utility model relates to a large-scale anti-burst ladle bottom impact area prefab, including prefabricated section and exhaust medium, the prefabricated section is equipped with a plurality ofly, be equipped with the exhaust medium between a plurality of prefabricated sections, the melting point of exhaust medium is far less than the prefabricated section, the exhaust medium leaves exhaust passage after melting in the baking process.
Further, horizontally-arranged exhaust media are arranged between the two vertically-adjacent precast blocks, vertically-arranged exhaust media are arranged between the two horizontally-adjacent precast blocks, and the horizontally-arranged and vertically-arranged exhaust media form a grid shape, so that the exhaust media can be quickly discharged after being melted in the baking process, and an exhaust channel is reserved.
Preferably, the relationship between the interval L of the vertical arrangement of the exhaust media and the total length L is as follows: when L > 1.5m, L ═ 1/4L; when the m is less than or equal to 1.5m, L is 1/3L.
Preferably, the relationship between the transverse arrangement distance H of the exhaust media and the total height H is as follows: h is 1/2H.
Preferably, the exhaust medium is a paraffin rope, a polyethylene plastic rope or a polystyrene plastic rope.
The utility model has the advantages that: the production process is simple, and the problem that the product bursts in the baking process is thoroughly solved from the angle of reducing the extremely high steam pressure generated inside the large prefabricated part in the baking process.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 2;
FIG. 4 is an enlarged schematic view of the vent passage at B in FIG. 3 after the venting medium is melted;
FIG. 5 is a schematic size diagram of FIG. 2;
in the figure: prefabricated section 1, exhaust medium 2, exhaust passage 3.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific embodiments:
the prefabricated member for the large-scale anti-burst steel ladle bottom impact area as shown in fig. 1-5 comprises a plurality of prefabricated blocks 1 and exhaust mediums 2, wherein the exhaust mediums 2 are arranged among the prefabricated blocks 1, the melting point of the exhaust mediums 2 is far lower than that of the prefabricated blocks 1, and the exhaust passages 3 are left after the exhaust mediums 2 are melted in the baking process. The exhaust medium 2 which is horizontally arranged is arranged between the two vertically adjacent precast blocks 1, the exhaust medium 2 which is vertically arranged is arranged between the two horizontally adjacent precast blocks 1, and the exhaust medium 2 which is horizontally and vertically arranged is in a grid shape, so that the exhaust medium can be quickly discharged after being melted in the baking process, and an exhaust channel 3 is reserved. The relationship between the vertical arrangement distance L of the exhaust media 2 and the total length L is as follows: when L > 1.5m, L ═ 1/4L; when the m is less than or equal to 1.5m, L is 1/3L. The relationship between the transverse arrangement distance H and the total height H of the exhaust medium 2 is as follows: h is 1/2H. The exhaust medium 2 is a paraffin rope, a polyethylene plastic rope or a polystyrene plastic rope.
In actual use:
the length L of the steel ladle bottom impact area prefabricated part is 1.4m, and the thickness H of the steel ladle bottom impact area prefabricated part is 0.3 m; the relationship between the vertical arrangement distance L of the exhaust media 2 and the total length L of the impact block is L-1/3L; the relationship between the transverse arrangement distance H of the exhaust media 2 and the total thickness H of the impact block is as follows: h is 1/2H; the exhaust medium 2 is a paraffin rope. The melting point of the exhaust medium 2 is lower than 140 ℃, the exhaust medium 2 is melted and exhausted in the baking process, and the exhaust channel 3 is left, so that extremely high vapor pressure generated inside is greatly reduced, and the problem that the product bursts in the baking process can be solved.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims (5)

1. The utility model provides a large-scale anti-burst ladle bottom impact area prefab which characterized in that: the baking oven comprises a plurality of prefabricated blocks (1) and exhaust media (2), wherein the prefabricated blocks (1) are provided with a plurality of exhaust media (2), the exhaust media (2) are arranged among the prefabricated blocks (1), the melting point of the exhaust media (2) is far lower than that of the prefabricated blocks (1), and an exhaust channel (3) is left after the exhaust media (2) are melted in the baking process.
2. The large burst-proof ladle bottom impact zone preform as claimed in claim 1, wherein: the exhaust device is characterized in that a horizontally arranged exhaust medium (2) is arranged between the two vertically adjacent prefabricated blocks (1), a vertically arranged exhaust medium (2) is arranged between the two horizontally adjacent prefabricated blocks (1), and the horizontally and vertically arranged exhaust medium (2) forms a grid shape, so that the exhaust medium can be rapidly discharged after being melted in the baking process, and an exhaust channel (3) is reserved.
3. A large burst proof ladle bottom impact area preform according to claim 2, wherein: the relationship between the vertical arrangement distance L of the exhaust media (2) and the total length L is as follows: when L > 1.5m, L ═ 1/4L; when L is less than or equal to 1.5m, L is 1/3L.
4. A large burst proof ladle bottom impact area preform according to claim 2 or 3, wherein: the relationship between the transverse arrangement distance H and the total height H of the exhaust medium (2) is as follows: h is 1/2H.
5. The large burst-proof ladle bottom impact zone preform as claimed in claim 4, wherein: the exhaust medium (2) is a paraffin rope, a polyethylene plastic rope or a polystyrene plastic rope.
CN201921529561.5U 2019-09-12 2019-09-12 Large-scale anti-burst ladle bottom impact area prefabricated part Active CN210702513U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921529561.5U CN210702513U (en) 2019-09-12 2019-09-12 Large-scale anti-burst ladle bottom impact area prefabricated part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921529561.5U CN210702513U (en) 2019-09-12 2019-09-12 Large-scale anti-burst ladle bottom impact area prefabricated part

Publications (1)

Publication Number Publication Date
CN210702513U true CN210702513U (en) 2020-06-09

Family

ID=70961055

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921529561.5U Active CN210702513U (en) 2019-09-12 2019-09-12 Large-scale anti-burst ladle bottom impact area prefabricated part

Country Status (1)

Country Link
CN (1) CN210702513U (en)

Similar Documents

Publication Publication Date Title
CN103334050B (en) Process utilizing sheet billet continuous casting to manufacture low aluminum silicon calm carbon structural steel
CN111057811B (en) Smelting method of low-cost high-quality steel for hot stamping forming
CN104498805A (en) Production method of high-carbon low-nitrogen steel for strand wires
CN105537549B (en) The production method of 100 DEG C of low temperature seamless steel pipe steel continuous cast round billets
CN101342580A (en) Vacuum casting mold apparatus capable of continuously manufacturing and cleaning fine equiax crystal casting ingot
CN101733373A (en) Submerged nozzle for sheet billet continuous casting crystallizer
CN103305764A (en) Cold-work die round steel and manufacturing method thereof
CN210702513U (en) Large-scale anti-burst ladle bottom impact area prefabricated part
CN102248135B (en) Liquid steel casting equipment
CN202845767U (en) Steel ladle purification bottom blowing integral air brick
CN205587639U (en) Package in middle of modified steelmaking continuous casting
CN109175322B (en) Slow cooling method for large-section casting blank
CN202830077U (en) Straight barrel type vacuum refining device
CN104707970B (en) Vacuum casting system for manufacturing of mother alloy
CN2671718Y (en) Large steel ingot mold riser
CN202155487U (en) Liquid steel casting equipment
CN209537548U (en) A kind of RH purifier promoting the decarburization of molten steel depth
CN2191051Y (en) Eddy control baffle for tapping hole in continuous casting
CN202377504U (en) Double-layer type current regulator for continuous casting tundish
CN206521515U (en) One kind ladles the continuous depassing unit in pond
CN111957940A (en) Heat-insulating pouring ladle with ladle lining push-out device
CN202571220U (en) Improved ladle cover for middle ladles
CN217831844U (en) Be applied to continuous casting tundish structure of smelting casting field
CN205170881U (en) Nickelbase superalloy slag separates on cooling groove
CN211386884U (en) Lasting steel package in bottom to one side

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant