CN201220946Y - Device for recovering metallic iron from vanadium-titanium blast furnace slag - Google Patents
Device for recovering metallic iron from vanadium-titanium blast furnace slag Download PDFInfo
- Publication number
- CN201220946Y CN201220946Y CNU2008201174655U CN200820117465U CN201220946Y CN 201220946 Y CN201220946 Y CN 201220946Y CN U2008201174655 U CNU2008201174655 U CN U2008201174655U CN 200820117465 U CN200820117465 U CN 200820117465U CN 201220946 Y CN201220946 Y CN 201220946Y
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- iron
- slag
- retrieving arrangement
- blast furnace
- metallic iron
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The utility model provides a vanadium-titanium blast-furnace slag metallic iron recovery device. The device is made of fireproof materials; on the periphery of the box-shaped structure, at least a bottom part of a side is higher than the bottom part of another side; the sides of two higher bottom parts of the box-shaped structure are connected; the sides of two lower bottom parts are connected to form a directional flow bevel, and an iron tapping hole is formed in the lowest position thereof. The utility model mainly aims at the problems that the iron content of the slag is high, the slag and the iron are difficult to separate, and fine iron shots are difficult to polymerize; the utility model adopts the structure that a metallic iron recovery device is arranged in a roughing slag main channel and an air injecting device is installed, thereby reducing the roughing slag speed, ensuring that the roughing slag in an iron precipitation pit has sufficient time for oxidizing, heating up, stirring and sedimentation, and increasing the opportunity of polymerization and sedimentation of the metallic iron shots; and after the iron tapping is accomplished, the hot iron in the pit is discharged, so that the iron loss during the roughing slag is reduced and the production cost is reduced.
Description
Technical field
The utility model relates to technical field of blast furnace process, particularly reclaims the device of metallic iron in the blast-furnace smelting of vanadium titano-magnetite from the vanadium titanium blast furnace slag.
Background technology
High-titanium type vanadium-titanium magnetite is when smelting, because the grade of blast furnace feeding iron ore is low, the quantity of slag is big, makes that high titanium slag viscosity is higher, slag iron inferior separating effect, the iron loss of blast furnace are high always.Long term production shows that the blast furnace iron loss that high-titanium type vanadium-titanium magnetite is smelted is on average up to 7-8%, and is higher more than 2～3 times than the iron loss of common ore deposit blast-furnace smelting.Slag band iron amount is on average up to 5-8%, and the slag band iron amount of common ore deposit blast-furnace smelting only about 1%.Therefore, vanadium titanium blast furnace slag band iron amount height becomes the important factor that influences the blast furnace economic target.Cause that the high major cause of slag band iron is: TiO in the slag
2Cross reduction generate dystectic Ti (C N) waits titanium at a low price, causes Ti-containing slag viscosity to rise, slag iron separation difficulty, tiny iron shot is difficult to the polymerization sedimentation, a large amount of metallic irons flow into slag ladle loss with slag.
Present existing blast furnace slag reclaims the structure of metallic iron device for the heavy iron of circle hole is set in slag runner, this cheats overall dimensions and slag runner basically identical, and its degree of depth is lower than the slag runner bottom.Slag the time has a small amount of macrobead iron shot heavy collection in the hole in this hole of flowing through, gone out behind the slag again the interior molten iron discharge in hole.This reclaims down, and the main drawback of slag metallic iron device is: slag speed when flowing through heavy iron hole is fast, and the heavy iron time is short, and the stirring of can not jetting again can only the recovery part macrobead pig iron, and the small-particle pig iron can not reclaim, and the rate of recovery of its metal in the dreg iron is very low.
The utility model content
The purpose of this utility model is the deficiency that overcomes blast furnace slag metallic iron retrieving arrangement in the prior art, at present slag iron-holder height, slag iron separation difficulty, tiny iron shot are difficult to problems such as polymerization at vanadium titanium blast-furnace smelting, take designing the heavy iron retrieving arrangement of box-shaped in the slag tap drain down, and the air blown device is installed on the iron retrieving arrangement, to reach the flow velocity of slag down that slows down, slag has enough oxidations, intensification, stirring, settling time under impelling in heavy iron retrieving arrangement, increases the settled chance of metal iron shot polymerization.Tap a blast furnace after the end, more settled molten iron in the box-shaped is reclaimed, thus the iron loss in the slag under reducing.
The utility model is by the following technical solutions: vanadium titanium blast furnace slag metallic iron retrieving arrangement adopts refractory brick in the refractory materials, refractory cements, yellow ground, iron runner material etc. to build by laying bricks or stones, its characteristics are that vanadium titanium blast furnace slag metallic iron retrieving arrangement builds by laying bricks or stones with refractory materials, this retrieving arrangement is a body structure, around its bottom half, have at least a lateral bottom to be higher than the bottom of another side; Wherein: high side, two bottoms is adjacent, and low side, two bottoms is adjacent, forms the inclined-plane that flows to of a direction, and is provided with iron notch in the bottom on its inclined-plane; The surface of casing one side is provided with a slag inlet, and the surface of its symmetrical side is provided with a slag notch, and the air blown device is installed on the retrieving arrangement.
The utility model is to the iron loss of further reduction schreyerite steelmaking furnace, improves technico-economical comparison, reducing production costs has important role and effect.
Description of drawings
Fig. 1 is the front view of retrieving arrangement;
Fig. 2 is the vertical view of retrieving arrangement, and 1 is slag inlet; 2 are the mouth of a river of tapping a blast furnace; 3 is slag notch;
Fig. 3 is the left view of retrieving arrangement;
Fig. 4 is the right view of retrieving arrangement;
Fig. 5 is provided with the residue ditch for flowing to the technology plot plan during slag under the retrieving arrangement.
Embodiment
Followingly the utility model is elaborated with reference to accompanying drawing.
The utility model is for solving high-titanium type vanadium-titanium magnetite when smelting, because the quantity of slag is big, high titanium slag viscosity is higher, slag iron inferior separating effect and the vanadium titanium blast furnace slag metallic iron retrieving arrangement that designs.
With reference to accompanying drawing 1 to Fig. 4, this retrieving arrangement is a body structure, around the body structure bottom, have at least a lateral bottom to be higher than the bottom of another side, and high side, two bottoms of bottom half is adjacent, and low side, two bottoms is adjacent, thereby forms molten iron to a direction mobile inclined-plane, and, be provided with iron notch 2 in the extreme lower position on inclined-plane; When blast furnace slag passes through the slag inlet 1 inflow retrieving arrangement of retrieving arrangement one side surface, make the molten iron that precipitates all flow to a direction of extreme lower position on inclined-plane, flow to iron notch 2, and flow to the molten iron collection pit, thereby reach the purpose that reclaims the blast furnace slag molten iron.
This retrieving arrangement adopts refractory materialss such as refractory brick, refractory cements, yellow ground, iron runner material to build by laying bricks or stones, and present embodiment is a rectangle, but is not limited to rectangle, also can be designed to structure formations such as square.
With reference to Fig. 5, flow in the process of retrieving arrangement at blast furnace slag, be installed in the thermal-state blast furnace slag winding-up air of air gun in device on the retrieving arrangement, to reach the flow velocity of slag down that slows down, impel down slag has enough oxidations, intensification, stirring, settling time in heavy iron retrieving arrangement, increase the settled chance of metal iron shot polymerization, thereby be settled out more molten iron, and flow to the molten iron hole along designed inclined-plane.After tap cinder finished, settled molten iron reclaimed in the molten iron hole flowing to again.Useful slag in the retrieving arrangement and residue are discharged by the slag notch 3 and the residue ditch on its opposite side surface respectively.This device makes the molten iron sedimentation abundant in removal process, and the rate of recovery of molten iron improves, thereby has reduced the iron loss of schreyerite steelmaking furnace and the production cost that schreyerite is smelted.
Claims (5)
1, a kind of vanadium titanium blast furnace slag metallic iron retrieving arrangement is built by laying bricks or stones with refractory materials, it is characterized in that this retrieving arrangement is a body structure, around its bottom half, has at least a lateral bottom to be higher than the bottom of another side; Wherein: high side, two bottoms is adjacent, and low side, two bottoms is adjacent, forms the inclined-plane that flows to of a direction, and is provided with iron notch (2) in the bottom on its inclined-plane.
2, vanadium titanium blast furnace slag metallic iron retrieving arrangement according to claim 1 is characterized in that the surface of casing one side is provided with a slag inlet (1), and the surface of its symmetrical side is provided with a slag notch (3).
3, vanadium titanium blast furnace slag metallic iron retrieving arrangement according to claim 1 is characterized in that being equipped with the air blown device on retrieving arrangement.
4, vanadium titanium blast furnace slag metallic iron retrieving arrangement according to claim 1 is characterized in that this retrieving arrangement can be rectangle or square.
5, vanadium titanium blast furnace slag metallic iron retrieving arrangement according to claim 1 is characterized in that this retrieving arrangement builds by laying bricks or stones with refractory brick, refractory cements, yellow ground, iron runner material etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201174655U CN201220946Y (en) | 2008-06-06 | 2008-06-06 | Device for recovering metallic iron from vanadium-titanium blast furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201174655U CN201220946Y (en) | 2008-06-06 | 2008-06-06 | Device for recovering metallic iron from vanadium-titanium blast furnace slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201220946Y true CN201220946Y (en) | 2009-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201174655U Expired - Fee Related CN201220946Y (en) | 2008-06-06 | 2008-06-06 | Device for recovering metallic iron from vanadium-titanium blast furnace slag |
Country Status (1)
| Country | Link |
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| CN (1) | CN201220946Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805724A (en) * | 2014-03-03 | 2014-05-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast-furnace tapping method and blast-furnace tapping device |
| CN107385127A (en) * | 2017-07-18 | 2017-11-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Improve the process of vanadium titano-magnetite blast furnace process slag sluicing system |
| CN107541575A (en) * | 2016-06-29 | 2018-01-05 | 宝山钢铁股份有限公司 | A kind of blast furnace dedusting ash retracting device and method |
| CN109097513A (en) * | 2018-10-31 | 2018-12-28 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of blast-furnace slag iron liquid recyclable device and method |
| CN114686623A (en) * | 2022-04-08 | 2022-07-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for recovering metallic iron from slag |
-
2008
- 2008-06-06 CN CNU2008201174655U patent/CN201220946Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805724A (en) * | 2014-03-03 | 2014-05-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast-furnace tapping method and blast-furnace tapping device |
| CN103805724B (en) * | 2014-03-03 | 2015-12-30 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of blast furnace casting method and blast furnace casting device |
| CN107541575A (en) * | 2016-06-29 | 2018-01-05 | 宝山钢铁股份有限公司 | A kind of blast furnace dedusting ash retracting device and method |
| CN107541575B (en) * | 2016-06-29 | 2019-08-27 | 宝山钢铁股份有限公司 | A kind of blast furnace dedusting ash recyclable device and method |
| CN107385127A (en) * | 2017-07-18 | 2017-11-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Improve the process of vanadium titano-magnetite blast furnace process slag sluicing system |
| CN107385127B (en) * | 2017-07-18 | 2019-11-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Improve the process of vanadium titano-magnetite blast furnace process slag iron separation |
| CN109097513A (en) * | 2018-10-31 | 2018-12-28 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of blast-furnace slag iron liquid recyclable device and method |
| CN114686623A (en) * | 2022-04-08 | 2022-07-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for recovering metallic iron from slag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PANZHIHUA NEW STEEL AND VANADIUM CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100329 Address after: 617000 No. 90, Taoyuan street, Panzhihua, Sichuan Patentee after: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. Patentee after: Panzhihua New Steel & Vanadium Co., Ltd. Address before: 617000 No. 90, Taoyuan street, Panzhihua, Sichuan Patentee before: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 617000 No. 90, Taoyuan street, Panzhihua, Sichuan Co-patentee after: Pangang Group Steel Vanadium & Titanium Co., Ltd. Patentee after: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. Address before: 617000 No. 90, Taoyuan street, Panzhihua, Sichuan Co-patentee before: Panzhihua New Steel & Vanadium Co., Ltd. Patentee before: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20160606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |