CN210765370U - Blast furnace main iron runner steel plate shell with corrugated pipe - Google Patents
Blast furnace main iron runner steel plate shell with corrugated pipe Download PDFInfo
- Publication number
- CN210765370U CN210765370U CN201921964921.4U CN201921964921U CN210765370U CN 210765370 U CN210765370 U CN 210765370U CN 201921964921 U CN201921964921 U CN 201921964921U CN 210765370 U CN210765370 U CN 210765370U
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- box hat
- refractory fiber
- blast furnace
- fiber felt
- bellows
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Abstract
The utility model relates to a blast furnace owner iron runner steel sheet casing with bellows, include the cell type box hat that is formed by connecting the polylith steel sheet, evenly set up the fluke on the cell type box hat inner wall, hang the refractory fiber felt of putting on the fluke and the outside refractory castable bed of material of cladding at the refractory fiber felt, its characterized in that: corrugated pipes are welded at the joints of the steel plates of the groove-shaped steel shell respectively, and the corrugated pipes are filled with refractory fiber felts. The utility model has the advantages that: because the utility model discloses steel sheet junction at the cell type box hat has set up the bellows, and packs the refractory fiber felt in the bellows, can prevent effectively that the main ditch box hat from taking place great slope to two outsides to reduce the serious problem of main ditch box hat deformation, improved the factor of safety of main ditch box hat life and logical iron.
Description
Technical Field
The utility model relates to a blast furnace main iron runner steel plate shell with a corrugated pipe in the iron-making production in the metallurgical industry.
Background
The blast furnace main iron runner is a necessary part for blast furnace molten iron to flow, and the inner sides of steel plate shells (25 mm in thickness) of the conventional blast furnace main iron runner are tightly connected with refractory castable. The inner sides of the steel plate shells are in close contact with the refractory castable, the connecting positions of the steel plate shells are welded as main parts before, the temperature of the blast furnace during tapping is higher than 1500 ℃, the heat of molten iron is transferred to the surface of the steel plate shells to be about 200 ℃, the refractory castable expands under heat at high temperature, and the thermal expansion coefficient of the refractory castable is larger than that of steel at the same temperature, so that the welding seams at the connecting positions of the steel plates are easy to crack and form cracks due to thermal expansion, the cracks can not recover after the main iron is cooled, air is easy to enter from the cracks to oxidize the refractory castable, the service life of the refractory castable is prolonged, and the safety of the blast furnace production is reduced.
Disclosure of Invention
The utility model aims at providing a blast furnace owner iron runner steel sheet casing with bellows can stop steel sheet casing's fracture effectively, has guaranteed the wholeness of steel sheet casing, has avoided the oxidation of refractory castable. The service life of the steel shell is prolonged.
The purpose of the utility model is realized like this.
The utility model discloses a blast furnace owner iron runner steel sheet casing with bellows, include the cell type box hat that is formed by connecting the polylith steel sheet, evenly set up the fluke on the cell type box hat inner wall, hang the refractory fiber felt of putting on the fluke and the cladding is at the outside refractory castable bed of material of refractory fiber felt, its characterized in that: corrugated pipes are welded at the joints of the steel plates of the groove-shaped steel shell respectively, and the corrugated pipes are filled with refractory fiber felts.
The thickness of the refractory fiber felt I is 100 mm.
The utility model has the advantages that: because the utility model discloses steel sheet junction at the cell type box hat has set up the bellows, and packs the refractory fiber felt in the bellows, can prevent effectively that the main ditch box hat from taking place great slope to two outsides to reduce the serious problem of main ditch box hat deformation, improved the factor of safety of main ditch box hat life and logical iron.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 2, the utility model discloses a blast furnace owner iron runner steel sheet casing with bellows, include the cell type box hat 1 that forms by the connection of polylith steel sheet, evenly set up fluke 4 on cell type box hat 1 inner wall, hang refractory fiber felt I2 and the cladding at the refractory fiber felt 2 outside refractory castable layer 3 of refractory fiber felt 4 of putting on fluke 4, its characterized in that: corrugated pipes 5 are respectively welded at the joints of the steel plates of the groove-shaped steel shell 1, and the corrugated pipes 5 are filled with refractory fiber felts II 6.
The thickness of the refractory fiber felt I is 100 mm.
The utility model fills the refractory fiber felt II 6 in the corrugated pipe 5, thereby effectively avoiding the refractory castable from entering the corrugated pipe 5 during pouring and avoiding the corrugated pipe 5 from being recovered when the blast furnace is tapped; meanwhile, the service life of the blast furnace is prolonged, the safety is improved, and the problem of expansion of the refractory castable and the steel plate shell is solved.
Claims (2)
1. The utility model provides a blast furnace owner iron runner steel sheet casing with bellows, includes the cell type box hat that forms by the connection of polylith steel sheet, evenly sets up the fluke on the cell type box hat inner wall, hangs the refractory fiber felt of putting on the fluke and the outside refractory castable layer of cladding at refractory fiber felt, its characterized in that: corrugated pipes are welded at the joints of the steel plates of the groove-shaped steel shell respectively, and the corrugated pipes are filled with refractory fiber felts.
2. The blast furnace main iron runner steel plate shell with the bellows of claim 1, wherein: the thickness of the refractory fiber felt is 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921964921.4U CN210765370U (en) | 2019-11-14 | 2019-11-14 | Blast furnace main iron runner steel plate shell with corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921964921.4U CN210765370U (en) | 2019-11-14 | 2019-11-14 | Blast furnace main iron runner steel plate shell with corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210765370U true CN210765370U (en) | 2020-06-16 |
Family
ID=71062663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921964921.4U Active CN210765370U (en) | 2019-11-14 | 2019-11-14 | Blast furnace main iron runner steel plate shell with corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210765370U (en) |
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2019
- 2019-11-14 CN CN201921964921.4U patent/CN210765370U/en active Active
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