CN2885878Y - Curved channel cover for molten iron - Google Patents
Curved channel cover for molten iron Download PDFInfo
- Publication number
- CN2885878Y CN2885878Y CNU2005200366936U CN200520036693U CN2885878Y CN 2885878 Y CN2885878 Y CN 2885878Y CN U2005200366936 U CNU2005200366936 U CN U2005200366936U CN 200520036693 U CN200520036693 U CN 200520036693U CN 2885878 Y CN2885878 Y CN 2885878Y
- Authority
- CN
- China
- Prior art keywords
- molten iron
- iron
- curved ditch
- channel cover
- cover
- 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.)
- Expired - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 62
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 241000935974 Paralichthys dentatus Species 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000009628 steelmaking Methods 0.000 abstract description 4
- 238000006477 desulfuration reaction Methods 0.000 abstract description 3
- 230000023556 desulfurization Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 229910052720 vanadium Inorganic materials 0.000 abstract description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 2
- 235000000396 iron Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a curved ditch lid of molten iron that uses on curved ditch of molten iron, reducible molten iron is at the in-process calorific loss of the curved ditch of molten iron of flowing through. The molten iron curved ditch cover comprises a cover body, and the width of the cover body is matched with that of the molten iron curved ditch. The equipment is arranged on a molten iron bending groove between a main iron groove and a molten iron tank of an iron-making blast furnace, can slow down the cooling speed of the flowing molten iron, so that the temperature of the molten iron entering the molten iron tank is averagely increased by about 14 ℃ compared with the molten iron bending groove cover which is not added, the molten iron with higher temperature is provided for the steelmaking of the later process, and favorable conditions are created for steelmaking desulfurization, vanadium extraction and excessive scrap steel consumption. The equipment has reasonable and simple structure and low cost. Due to the adoption of the reasonable matching structure of the baking layer and the heat insulation layer, the service life of the molten iron curved ditch cover on the hot molten iron at about 1400 ℃ is about half a year to about one year.
Description
Technical field
The utility model relates to the equipment unit that uses in a kind of metallurgy industry production process, and especially a kind of iron-smelting blast furnace to transfer passage one molten iron of iron ladle that is used for is bent employed molten iron curve-channel cover on the ditch.
Background technology
At present, steel making working procedure is for reducing production costs, and last operation ironmaking is claimed the high as far as possible molten iron of temperature as raw materials for metallurgy.And after molten iron flowed out from blast furnace, the loss on the way on the curved ditch of transfer passage one molten iron of the temperature of molten iron was bigger.Simultaneously because the thermal-radiating effect of high temperature liquid iron, cause on the curved ditch of molten iron molten iron to splash and flue dust bigger, thereby near the production environment the curved ditch of molten iron is comparatively abominable.In addition, the reduction of the temperature of molten iron has also caused the significant wastage of the energy, returns the operation such as steel desulfurization, vanadium extraction operation of back and brings disadvantageous effect.
The utility model content
In order to overcome in the existing smelting process, the deficiency that molten iron causes bigger temperature to descend in the process of the curved ditch of molten iron of flowing through, technical problem to be solved in the utility model provide a kind of molten iron curve-channel cover that reduces molten iron calorific loss in the process of the curved ditch of molten iron of flowing through.
The technical scheme that its technical problem that solves the utility model adopts is: this molten iron curve-channel cover includes a lid, and the width of the curved ditch of the width of lid and molten iron is suitable.
The beneficial effects of the utility model are: equipment is installed in the iron-smelting blast furnace main iron hook to the curved ditch of the molten iron between the iron ladle, can play the cooling rate of slowing down the molten iron that flows through, compare when making the molten iron that enters iron ladle with hot metal charging curve-channel cover not, molten iron temperature on average improves about 14 ℃, steel-making to the back operation provides temperature higher molten iron, gives steel desulfurization, vanadium extraction and eat steel scrap more to create favorable conditions.Experiment shows that the equipment result of use is good, high insulating effect, and can adapt to the bad working environments that 1400 ℃ of left and right sides high temperature liquid irons toast, service life of equipment is long, has saved the energy, has obtained favorable economic benefit and environmental benefit.In addition, after the curved ditch of molten iron was added a cover, the molten iron thermosteresis reduced, the also corresponding minimizing of molten iron radiant heat that blast furnace is other, and molten iron splashes and the flue dust phenomenon is slowed down to some extent, and this has played better action to improving the other working conditions of blast furnace.This device structure is reasonable, simple and direct, and equipment cost is cheap.Owing to adopt baking layer and the reasonably combined structure of thermal insulation layer, about the work of the molten iron curve-channel cover on 1400 ℃ of left and right sides molten irons is half a year to one year work-ing life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Be labeled as among the figure: baking layer 1, interior arch 2, thermal insulation layer 3, encircle 4 outward, anchor fluke 5, transverse wall 6, midfeather 7.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, molten iron curve-channel cover of the present utility model comprises lid, and the width of the curved ditch of the width of lid and molten iron is suitable.When the molten iron curve-channel cover covers on the curved ditch of molten iron, can reduce the radiant heat of molten iron significantly, the longitudinal shape of this equipment is according to the shaped design of the curved ditch of molten iron at scene.
It is arc that the shape of cross section of lid preferably is, for example semicircle etc.
For better reaching heat insulation effect, lid is sequentially set with baking layer 1, interior arch 2, thermal insulation layer 3 from inside to outside and encircles 4 outward.Baking layer 1 adopts resistant to elevated temperatures material to make, and thermal insulation layer adopts the material of good heat insulating, heat-transfer capability difference to make.
In order to make its baking layer 1 can be good at fixing, the internal surface of interior arch 2 is provided with anchor fluke 5, and flame retardant coating 1 is fixed on the internal surface of interior arch 2 by anchor fluke 5.Shapes such as anchor fluke 5 common employing barbs are fixed on the internal surface of interior arch 2 by modes such as welding.
In order to make its baking layer 1 and thermal insulation layer 3 can be good at fixing, on the inside and outside surface of interior arch 2 and encircle on 4 the internal surface and be provided with transverse wall 6 and midfeather 7, be in same lip-deep transverse wall 6 and midfeather 7 interlaced distributions outward.Like this, crisscross transverse wall 6 can well be fixed on baking layer 1 on the internal surface of interior arch 2 with midfeather 7, and arch 2 and outer the arch between 4 in thermal insulation layer 3 is fixed on prevent that baking layer 1 and thermal insulation layer 3 break away from, peel off.
Embodiment: as shown in Figure 1, be made into outer arch 4 with the thick Q235 steel plate of 4mm, arch 2 in the Q235 steel plate that 5mm is thick is made into, settle the thick aluminosilicate refractory fiber plate of 3 * 20mm as thermal insulation layer 3 between interior arch 2 and the outer arch 4, in fill out the baking layer 1 that is made into the thick refractory concrete of 80mm on arch 2 the internal surface, being formulated as of refractory concrete: luminite cement: bauxites aggregate=3: 7.Baking layer 1 is fixing by the anchor fluke 5 on the internal surface of arch 2 in being welded on, vertical gusset 7 and horizontal bar plate 6 respectively with thermal insulation layer 3.
Claims (5)
1, molten iron curve-channel cover is characterized in that: comprise lid, the width of the curved ditch of the width of lid and molten iron is suitable.
2, molten iron curve-channel cover as claimed in claim 1, it is characterized in that: the shape of cross section of lid is arc.
3, molten iron curve-channel cover as claimed in claim 1 or 2 is characterized in that: lid is sequentially set with baking layer (1), interior arch (2), thermal insulation layer (3) and outer arch (4) from inside to outside.
4, molten iron curve-channel cover as claimed in claim 3 is characterized in that: the internal surface of interior arch (2) is provided with anchor fluke (5), and flame retardant coating (1) is fixed on the internal surface of interior arch (2) by anchor fluke (5).
5, molten iron curve-channel cover as claimed in claim 4, it is characterized in that: be provided with transverse wall (6) and midfeather (7) on the inside and outside surface of interior arch (2) and on the internal surface of outer arch (4), be in the transverse wall (6) and the interlaced distribution of midfeather (7) on same surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200366936U CN2885878Y (en) | 2005-12-27 | 2005-12-27 | Curved channel cover for molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200366936U CN2885878Y (en) | 2005-12-27 | 2005-12-27 | Curved channel cover for molten iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2885878Y true CN2885878Y (en) | 2007-04-04 |
Family
ID=37960968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200366936U Expired - Fee Related CN2885878Y (en) | 2005-12-27 | 2005-12-27 | Curved channel cover for molten iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2885878Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912053A (en) * | 2012-10-26 | 2013-02-06 | 攀钢集团研究院有限公司 | Heat-insulation cover of trough |
-
2005
- 2005-12-27 CN CNU2005200366936U patent/CN2885878Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912053A (en) * | 2012-10-26 | 2013-02-06 | 攀钢集团研究院有限公司 | Heat-insulation cover of trough |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |