CN109097513A - A kind of blast-furnace slag iron liquid recyclable device and method - Google Patents
A kind of blast-furnace slag iron liquid recyclable device and method Download PDFInfo
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- CN109097513A CN109097513A CN201811285150.6A CN201811285150A CN109097513A CN 109097513 A CN109097513 A CN 109097513A CN 201811285150 A CN201811285150 A CN 201811285150A CN 109097513 A CN109097513 A CN 109097513A
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- iron
- slag
- pit
- blast
- heavy
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a kind of blast-furnace slag iron liquid recyclable devices, comprising: for the slag runner that iron liquid flows through, and slag runner bottom is provided with heavy iron pit；For recycling the slag iron recover of iron liquid；Heavy iron pit is connected with slag iron recover.Using vanadium titano-magnetite as in the blast furnace that raw material is smelted, when blast furnace casting, liquid molten iron first passes around sow, it is different according to slag iron specific gravity, the separation process that slag and iron float and sinks is completed under the auxiliary of skimming tool, then using slag runner, since the bottom of slag runner is provided with heavy iron pit, so that carrying out the sedimentation separation of iron depending on the specific gravity in slag runner with iron slag, it is settled down to the iron liquid of slag runner lower layer or bottom, assembled under the action of heavy iron pit, then flowed into slag iron recover out of heavy iron pit, realizes the recycling of iron in slag.The arrangement increases the rate of recovery of iron liquid in blast-furnace slag, reduce waste, improve the economic benefit of enterprise.The invention also discloses a kind of blast-furnace slag iron liquid recovery methods.
Description
Technical field
The present invention relates to technical field of blast furnace process, in particular to a kind of blast-furnace slag iron liquid recyclable device and method.
Background technique
For vanadium titano-magnetite blast furnace process, since TiO2 is in blast furnace under the conditions of strongly reducing atmosphere, part is inevitable
Be reduced into that fusing point is higher, density all has TiC, TiN and Ti (C, N) of preferable wetting effect slightly larger than clinker, with slag iron
Solid solution.These high-melting-point substances are wrapped in around iron shot, are prevented iron shot from polymerizeing and are grown up；Or furnace is distributed at disperse shape
In slag, increase slag viscosity.
In addition, liquid slag iron is flowed out from iron mouth when large and medium-sized blast furnace casting, main iron is flowed fast through in a relatively short period of time
Ditch, it is different according to slag iron specific gravity, the separation process that slag and iron float and sinks is completed under the auxiliary of skimming tool.Due to slag iron point
The reasons such as molten iron sedimentation resistance is big in, slag short from the time, iron of slagging tap is uneven, cause part metals iron to sweep along inflow by clinker
In slag runner.Since TiO2 content is higher in blast furnace slag, it is not able to satisfy the performance requirement as cement producting material, it cannot be as common
Mine blast furnace process handles blast furnace slag in a manner of flush slag like that, makes blast furnace slag refinement and magnetic separation recovery iron.The above reason causes
The a large amount of iron of vanadium titano-magnetite blast furnace process tapping process are taken away by clinker, cause biggish economic loss to enterprise.
Therefore, the rate of recovery of blast-furnace slag iron liquid how is improved, reduces waste, the economic benefit for improving enterprise is this field
The technical issues of technical staff's urgent need to resolve.
Summary of the invention
In view of this, can reduce waste the purpose of the present invention is to provide a kind of blast-furnace slag iron liquid recyclable device, mention
The economic benefit of high enterprise.
Another object of the present invention, which also resides in, provides a kind of blast-furnace slag iron liquid recovery method.
To achieve the goals above, the invention provides the following technical scheme:
A kind of blast-furnace slag iron liquid recyclable device, comprising:
For the slag runner that iron liquid flows through, and the slag runner bottom is provided with heavy iron pit；
For recycling the slag iron recover of the iron liquid；
The heavy iron pit is connected with the slag iron recover.
Preferably, the through-hole passed through for the iron liquid is offered on the heavy iron pit.
Preferably, the heavy iron pit is multiple, and is successively linearly distributed in the slag runner bottom.
Preferably, the heavy iron pit includes the first heavy iron pit, and the second heavy iron pit and third sink iron pit, and described the
Slag runner ditch grade before one heavy iron pit is less than the slag runner ditch base slope of the described second heavy iron pit and the heavy iron pit of the third
Degree.
Preferably, the slag iron recover includes the first slag iron recover, the second slag iron recover and the recycling of third slag iron
Device, and the volume of the first slag iron recover is greater than the body of the second slag iron recover and the third slag iron recover
Product.
Preferably, the slag iron recover is all set in the slag runner side or is alternately disposed at the slag runner two sides.
Preferably, the grappling iron for being connected with lifting appliance is additionally provided on the slag iron recover.
A kind of blast-furnace slag iron liquid recovery method recycles dress applied to the blast-furnace slag iron liquid as described in above-mentioned any one
It sets characterized by comprising
1) iron liquid flows through slag runner；
2) iron liquid enters the heavy iron pit and is settled；
3) iron liquid enters the slag iron recover and is recycled.
As can be seen from the above technical solutions, blast-furnace slag iron liquid recyclable device disclosed in this invention, comprising: be used for iron
The slag runner of liquid stream warp, and slag runner bottom is provided with heavy iron pit；For recycling the slag iron recover of iron liquid；Heavy iron pit and slag iron
Recover is connected.
Using vanadium titano-magnetite as in the blast furnace that raw material is smelted, when blast furnace casting, liquid molten iron first passes around master
Iron runner, it is different according to slag iron specific gravity, the separation process that slag and iron float and sinks is completed under the auxiliary of skimming tool, is then passed through again
Slag runner is crossed, since the bottom of slag runner is provided with heavy iron pit, so that carrying out iron depending on the specific gravity in slag runner with iron slag
Sedimentation separation is settled down to the iron liquid of slag runner lower layer or bottom, is assembled under the action of heavy iron pit, then recessed from heavy iron again
It is flowed into slag iron recover in hole, to realize effective recycling of iron in slag.Therefore, which effectively increases in blast-furnace slag
The rate of recovery of iron liquid further reduces waste, improves the economic benefit of enterprise.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below to embodiment or existing
Attached drawing needed in technical description is briefly described, it is clear that, the accompanying drawings in the following description is only this hair
Bright embodiment for those of ordinary skill in the art without creative efforts, can also be according to mentioning
The attached drawing of confession obtains other attached drawings.
Fig. 1 is the overall structure diagram of blast-furnace slag iron liquid recyclable device disclosed in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of slag runner disclosed in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of slag iron recover disclosed in the embodiment of the present invention.
Wherein, the names of the parts are as follows:
1- slag runner, 21- first sink iron pit, and 22- second sinks iron pit, and 23- third sinks iron pit, and the first slag iron of 31- is returned
Receive device, 32- slag iron recover, 33- third slag iron recover.
Specific embodiment
In view of this, core of the invention is to provide a kind of blast-furnace slag iron liquid recyclable device, waste can be reduced, is mentioned
The economic benefit of high enterprise.
Another core of the invention, which also resides in, provides a kind of blast-furnace slag iron liquid recovery method.
To make those skilled in the art more fully understand the present invention program, below connection with figures and specific embodiment pair
The present invention is described in further detail.
Blast-furnace slag iron liquid recyclable device disclosed in the embodiment of the present invention, comprising: for the slag runner 1 that iron liquid flows through, and
1 bottom of slag runner is provided with heavy iron pit；For recycling the slag iron recover of iron liquid；Heavy iron pit is connected with slag iron recover.
Using vanadium titano-magnetite as in the blast furnace that raw material is smelted, when blast furnace casting, liquid molten iron first passes around master
Iron runner, it is different according to slag iron specific gravity, the separation process that slag and iron float and sinks is completed under the auxiliary of skimming tool, is then passed through again
Slag runner 1 is crossed, since the bottom of slag runner 1 is provided with heavy iron pit, so that carrying out iron depending on the specific gravity in slag runner 1 with iron slag
Sedimentation separation, be settled down to the iron liquid of 1 lower layer of slag runner or bottom, assembled under the action of heavy iron pit, then again from heavy
It is flowed into slag iron recover in iron pit, to realize effective recycling of iron in slag.Therefore, which effectively increases State of Blast Furnace
The rate of recovery of iron liquid in slag, further reduces waste, improves the economic benefit of enterprise.
By the way that before setting slag runner and after setting slag runner, the sampling analysis to iron content in slag is it is known that in setting slag runner
Before, the content of iron can reach 6%-10% in slag；After slag runner is arranged, the content of iron be can reach between 1.5%-3% in slag, average
About 1.8%, the iron content in slag iron recover that slag stream finally enters is between 50%-80%.
It needs to explain, the through-hole passed through for iron liquid is offered on heavy iron pit, iron liquid is out of heavy iron pit via logical
Hole flows into slag iron recover.
Certainly, through-hole, which can be set, also can be set in the bottom of heavy iron pit in the bottom and side of heavy iron pit
Boundary position, depending on specific setting position needs according to the actual situation.
It should be noted that heavy iron pit can be set one, also can be set it is multiple, when heavy iron pit is multiple,
The rate of recovery of iron liquid in slag can further be promoted.
As shown in Figure 1, in blast-furnace slag iron liquid recyclable device disclosed in the embodiment of the present invention, multiple heavy iron pits according to
It is secondary to be linearly distributed in 1 bottom of slag runner, so set, liquid slag iron can successively pass through each heavy iron pit, to realize slag
The effective recycling of middle iron liquid.
In order to advanced optimize above-described embodiment, in blast-furnace slag iron liquid recyclable device disclosed in the embodiment of the present invention,
Heavy iron pit is preferably provided with 3, the respectively first heavy iron pit 21, and the second heavy iron pit 22 and third sink iron pit 23, wherein
Slag runner ditch grade before first heavy iron pit 21 is less than the slag runner bottom of trench before the second heavy iron pit 22 and the heavy iron pit 23 of third
The gradient.Since the slag runner ditch grade before the first heavy iron pit 21 is smaller, slag stream flow velocity is relatively slow, to be conducive to extend
The slag iron sedimentation time more recycles iron in slag；After slag stream flows through the first heavy iron pit 21, in order to guarantee slag iron
Speed, preventing slag stream flow velocity from crossing, slow cooling is solidifying, and the gradient of slag runner bottom of trench becomes larger, and slag flow velocity degree is speeded, in the process of slag stream flowing
In, continue to settle in the slag iron that the first heavy iron pit 21 does not settle, the second heavy iron pit 22 and third are sunk iron pit 23 and continued pair
Heavy iron carries out convergence recycling.
As shown in Figure 1, slag iron recover is also arranged 3 accordingly, respectively the first slag iron recover 31, the second slag iron is returned
Receive device 32 and third slag iron recover 33, due in slag iron settled in the first heavy iron pit 31 it is most, need to be by first
The volume of slag iron recover 31 is set greater than the volume of the second slag iron recover 32 and third slag iron recover 33.
It should be noted that slag iron recover can all be set to the side of slag runner 1, slag runner can also be alternately disposed at
1 two sides, specifically depending on actual conditions.
In order to facilitate the transport of slag iron recover, in blast-furnace slag iron liquid recyclable device disclosed in the embodiment of the present invention,
The grappling iron for being connected with lifting appliance is additionally provided on slag iron recover, after slag iron recover is filled with iron liquid, by rising
It hangs equipment and is lifted by crane and transported.
The embodiment of the invention also discloses a kind of blast-furnace slag iron liquid recovery methods, are applied to disclosed in above-mentioned any one
Blast-furnace slag iron liquid recyclable device in, comprising: 1) iron liquid flows through slag runner 1；2) iron liquid enters heavy iron pit and is settled；3) iron
Liquid enters slag iron recover and is recycled.Using vanadium titano-magnetite as in the blast furnace that raw material is smelted, when blast furnace casting, liquid
State molten iron first passes around sow, different according to slag iron specific gravity, completes what slag floated and sank with iron under the auxiliary of skimming tool
Separation process, then using slag runner 1, since the bottom of slag runner 1 is provided with heavy iron pit, so that with iron slag in slag runner 1
The sedimentation separation for carrying out iron depending on the specific gravity, is settled down to the iron liquid of 1 lower layer of slag runner or bottom, under the action of heavy iron pit
With aggregation, then flowed into slag iron recover out of heavy iron pit again, to realize effective recycling of iron in slag.Therefore, the dress
It is set effective the rate of recovery for improving iron liquid in blast-furnace slag, further reduces waste, improves the economic benefit of enterprise.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of blast-furnace slag iron liquid recyclable device characterized by comprising
The slag runner (1) flowed through for iron liquid, and the slag runner (1) bottom is provided with heavy iron pit；
For recycling the slag iron recover of the iron liquid；
The heavy iron pit is connected with the slag iron recover.
2. blast-furnace slag iron liquid recyclable device according to claim 1, which is characterized in that offered on the heavy iron pit
The through-hole passed through for the iron liquid.
3. blast-furnace slag iron liquid recyclable device according to claim 1, which is characterized in that the heavy iron pit be it is multiple,
And successively linearly it is distributed in the slag runner (1) bottom.
4. blast-furnace slag iron liquid recyclable device according to claim 3, which is characterized in that the heavy iron pit includes first
Heavy iron pit (21), the second heavy iron pit (22) and third are sunk iron pit (23), the slag runner before the first heavy iron pit (21)
Ditch grade is less than the slag runner ditch grade of the described second heavy iron pit (22) and the third heavy iron pit (23).
5. blast-furnace slag iron liquid recyclable device according to claim 1, which is characterized in that the slag iron recover includes the
One slag iron recover (31), the second slag iron recover (32) and third slag iron recover (33), and the first slag iron recover
(31) volume is greater than the volume of the second slag iron recover (32) and the third slag iron recover (33).
6. blast-furnace slag iron liquid recyclable device according to claim 1, which is characterized in that the slag iron recover is respectively provided with
In the slag runner (1) side or it is alternately disposed at the slag runner (1) two sides.
7. blast-furnace slag iron liquid recyclable device according to claim 1, which is characterized in that also set on the slag iron recover
It is equipped with the grappling iron for being connected with lifting appliance.
8. a kind of blast-furnace slag iron liquid recovery method, applied to the blast-furnace slag iron liquid as described in claim 1-7 any one
Recyclable device characterized by comprising
1) iron liquid flows through slag runner (1)；
2) iron liquid enters the heavy iron pit and is settled；
3) iron liquid enters the slag iron recover and is recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285150.6A CN109097513B (en) | 2018-10-31 | 2018-10-31 | Blast furnace slag iron liquid recovery device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285150.6A CN109097513B (en) | 2018-10-31 | 2018-10-31 | Blast furnace slag iron liquid recovery device and method |
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| Publication Number | Publication Date |
|---|---|
| CN109097513A true CN109097513A (en) | 2018-12-28 |
| CN109097513B CN109097513B (en) | 2020-05-22 |
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| CN201811285150.6A Active CN109097513B (en) | 2018-10-31 | 2018-10-31 | Blast furnace slag iron liquid recovery device and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030002554A (en) * | 2001-06-29 | 2003-01-09 | 주식회사 포스코 | Low fluidity slag dropping runner |
| CN201220946Y (en) * | 2008-06-06 | 2009-04-15 | 攀钢集团攀枝花钢铁研究院有限公司 | Device for recovering metallic iron from vanadium-titanium blast furnace slag |
| CN201330258Y (en) * | 2009-01-21 | 2009-10-21 | 攀钢集团研究院有限公司 | Skimmer |
| CN201553747U (en) * | 2009-12-08 | 2010-08-18 | 攀钢集团攀枝花钢钒有限公司 | Vanadium-titanium high-titanium slag metal iron recycling device |
| CN203653588U (en) * | 2013-12-30 | 2014-06-18 | 四川德胜集团钒钛有限公司 | System for recycling iron from blast furnace slag |
-
2018
- 2018-10-31 CN CN201811285150.6A patent/CN109097513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030002554A (en) * | 2001-06-29 | 2003-01-09 | 주식회사 포스코 | Low fluidity slag dropping runner |
| CN201220946Y (en) * | 2008-06-06 | 2009-04-15 | 攀钢集团攀枝花钢铁研究院有限公司 | Device for recovering metallic iron from vanadium-titanium blast furnace slag |
| CN201330258Y (en) * | 2009-01-21 | 2009-10-21 | 攀钢集团研究院有限公司 | Skimmer |
| CN201553747U (en) * | 2009-12-08 | 2010-08-18 | 攀钢集团攀枝花钢钒有限公司 | Vanadium-titanium high-titanium slag metal iron recycling device |
| CN203653588U (en) * | 2013-12-30 | 2014-06-18 | 四川德胜集团钒钛有限公司 | System for recycling iron from blast furnace slag |
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| CN109097513B (en) | 2020-05-22 |
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