CN217418729U - Iron-smelting blast furnace iron runner head prefabricated part - Google Patents
Iron-smelting blast furnace iron runner head prefabricated part Download PDFInfo
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- CN217418729U CN217418729U CN202123082665.6U CN202123082665U CN217418729U CN 217418729 U CN217418729 U CN 217418729U CN 202123082665 U CN202123082665 U CN 202123082665U CN 217418729 U CN217418729 U CN 217418729U
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- iron runner
- iron
- prefab
- runner
- blast furnace
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a blast furnace ironmaking field discloses an ironmaking blast furnace iron runner ditch head prefab, to the easy problem that unusual melting loss shortened backward of appearing in the blast furnace iron runner ditch head mouth position among the prior art, the following scheme is proposed now, and it includes iron runner steel casing and ditch head prefab, iron runner refractory castable, iron runner mould, the ditch head prefab is installed on iron runner steel casing bottom inner wall, the iron runner mould is placed in the iron runner steel casing, and is located directly over the ditch head prefab, the space between iron runner steel casing, ditch head prefab and iron runner mould is filled to iron runner refractory castable. The utility model discloses ditch head stem bar life can be synchronous with the high flux that the iron runner used, and the phenomenon such as iron leakage, burnout equipment appear owing to reasons such as oxidation, the intolerance of nai material of the ditch mouth of having avoided the whole pouring in the use, ensures that the safety in production of blast furnace has practical application's value.
Description
Technical Field
The utility model relates to a blast furnace ironmaking field especially relates to an ironmaking blast furnace iron runner ditch head prefab.
Background
The clean slag iron is a central task in front of the blast furnace, and the molten iron flows out of the blast furnace by opening the tap hole and flows into a molten iron tank and a slag treatment system through a main iron runner, slag and an iron runner.
The nozzle part of the tap hole of the iron runner is subjected to the reasons of scouring and erosion of molten iron, rapid cooling and rapid heating of a tapping clearance, particularly oxidation at high temperature and the like, so that the refractory material at the nozzle part of the tap hole of the iron runner of the blast furnace is abnormally melted and reduced backwards, and thus the midway repairing is needed, otherwise, the problems that the steel shell of the iron runner is burnt out and the molten iron cannot normally flow into a molten iron tank and cannot be tapped normally occur, and the continuous production of the blast furnace is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of iron-making blast furnace iron runner ditch head prefab has solved the problem that the blast furnace iron runner ditch head mouth position among the prior art appears unusual melting loss backward shortening easily.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an iron-smelting blast furnace iron runner ditch head prefab, includes iron runner steel casing and ditch head prefab, iron runner refractory castable, iron runner mould, the ditch head prefab is installed on iron runner steel casing bottom inner wall, the iron runner mould is placed in the iron runner steel casing, and is located directly over the ditch head prefab, iron runner refractory castable fills the space between iron runner steel casing, ditch head prefab and iron runner mould.
Preferably, the top both sides of ditch head prefab all are equipped with the forked tail, are fixed with spacing frame on the bottom inner wall of iron runner steel casing, ditch head prefab block is in spacing frame.
Preferably, two positioning sleeves are fixed on the inner wall of the bottom of the iron runner steel shell, the two positioning sleeves are respectively located on two sides of the limiting frame, two positioning columns are fixed on the bottom surface of the iron runner mold, and the bottoms of the two positioning columns are respectively inserted into the two positioning sleeves.
Preferably, the groove head prefabricated part is formed by adopting a machine press.
The utility model discloses in:
1. the channel head prefabricated part has the advantages of molten iron erosion resistance, good oxidation resistance and good thermal shock stability, and when pouring the runner lip pouring material of the channel head of the iron channel, the prefabricated part is pre-embedded at the runner lip part of the channel head of the iron channel, and a refractory material is poured on the runner lip part.
2. After the iron runner nozzle prefabricated member is used, the service life of the runner nozzle can be synchronous with the high iron flux used by the iron runner, the phenomena of iron leakage, equipment burnout and the like of the integrally cast runner nozzle due to oxidation of refractory materials, erosion resistance and the like in the using process are avoided, and the safe production of the blast furnace is ensured to have practical application value.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a front view of the precast block of the present invention.
Fig. 3 is a left side view of the precast block of the present invention.
Fig. 4 is a top view of the precast block of the present invention.
Reference numbers in the figures: 1. an iron runner steel shell; 2. a ditch head prefabricated part; 3. refractory castable; 4. an iron runner mold; 5, a limiting frame; 6. a positioning column; 7. a positioning sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, the iron runner head prefabricated part of the iron-making blast furnace comprises a head prefabricated part 2, an iron runner steel shell 1, a refractory castable 3 and an iron runner mold 4, wherein the head prefabricated part 2 is placed in a limiting frame 5 in the iron runner steel shell 1, a dovetail groove of the head prefabricated part is upward, an inclined surface of the head prefabricated part is backward, and the dovetail is arranged to enable the head prefabricated part 2 to have better thermal shock stability; the iron runner mold 4 is placed in the iron runner steel shell 1, and the two positioning columns 6 are respectively inserted into the two positioning sleeves 7, so that the iron runner mold 4 is accurately placed right above the runner head prefabricated member 2, the refractory castable 3 is uniformly stirred with water to fill the space formed by the runner head prefabricated member 2, the iron runner steel shell 1 and the iron runner mold 4, the mold is lifted after the refractory castable 3 is solidified, after normal iron introduction, the runner head prefabricated member 2 has good erosion resistance, oxidation resistance and thermal shock stability, the phenomena of erosion, oxidation and the like of molten iron flow to the runner head runner nozzle are weakened, the service life of the runner head runner nozzle is prolonged, the iron introduction amount is synchronously improved, the phenomena of iron leakage, equipment burnout and the like caused by oxidation of refractory materials, non-erosion resistance and the like in the use process of the integrally cast runner nozzle are avoided, and the safe production of a blast furnace is ensured.
The groove head prefabricated part 2 is formed by selecting a high-quality corundum-mullite raw material, reasonably grading particles, uniformly mixing, pressing and molding by adopting a 630-ton hydraulic press, sintering at a high temperature of 1650 ℃, naturally cooling and discharging, so that the groove head prefabricated part has good scouring resistance, oxidation resistance and thermal shock stability.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides an iron-smelting blast furnace iron runner ditch head prefab, includes iron runner steel casing (1) and ditch head prefab (2), iron runner refractory castable (3), iron runner mould (4), its characterized in that: install on iron runner steel casing (1) bottom inner wall ditch first prefab (2), place in iron runner steel casing (1), and be located ditch first prefab (2) directly over iron runner mould (4), the gap between iron runner steel casing (1), ditch first prefab (2) and iron runner mould (4) is filled in iron runner refractory castable (3).
2. The iron-making blast furnace iron runner ditch head prefabticated member as claimed in claim 1, wherein the top both sides of the ditch head prefabticated member (2) are both provided with dovetails, the bottom inner wall of the iron runner steel shell (1) is fixed with a limit frame (5), and the ditch head prefabticated member (2) is clamped in the limit frame (5).
3. The iron-making blast furnace iron runner head prefabricated member as claimed in claim 1, wherein two positioning sleeves (7) are fixed on the inner wall of the bottom of the iron runner steel shell (1), the two positioning sleeves (7) are respectively positioned at two sides of the limiting frame (5), two positioning columns (6) are fixed on the bottom surface of the iron runner mold (4), and the bottoms of the two positioning columns (6) are respectively inserted into the two positioning sleeves (7).
4. The iron making blast furnace iron runner head preform as claimed in claim 1, characterized in that the runner head preform (2) is formed by machine pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123082665.6U CN217418729U (en) | 2021-12-09 | 2021-12-09 | Iron-smelting blast furnace iron runner head prefabricated part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123082665.6U CN217418729U (en) | 2021-12-09 | 2021-12-09 | Iron-smelting blast furnace iron runner head prefabricated part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217418729U true CN217418729U (en) | 2022-09-13 |
Family
ID=83168436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123082665.6U Active CN217418729U (en) | 2021-12-09 | 2021-12-09 | Iron-smelting blast furnace iron runner head prefabricated part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217418729U (en) |
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2021
- 2021-12-09 CN CN202123082665.6U patent/CN217418729U/en active Active
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