CN106636497B - A kind of method of metallic iron in quick recycling iron content slag - Google Patents
A kind of method of metallic iron in quick recycling iron content slag Download PDFInfo
- Publication number
- CN106636497B CN106636497B CN201611015123.8A CN201611015123A CN106636497B CN 106636497 B CN106636497 B CN 106636497B CN 201611015123 A CN201611015123 A CN 201611015123A CN 106636497 B CN106636497 B CN 106636497B
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- iron
- magnetic separation
- slag
- revolving cup
- separation
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- 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)
Abstract
The present invention discloses a kind of method for quickly recycling metallic iron in iron content slag, carries out according to the following steps：Iron content slag rotation granulation is obtained into amorphous slag granules and iron shot particle, the amorphous slag granules and iron shot particle are subjected to magnetic separation separation, surface tension difference different with the density of iron separates the two to the method using clinker using amorphous slag granules.During rotating granulated; under centrifugal force and air cooled effect; iron content slag is quickly granulated into tiny spheric granules and is solidified; since clinker is different with the surface tension of metallic iron; it is respectively formed slag granules and iron shot particle; have little time crystallization presentation amorphous state due to rotating the granulated very fast slag particles of cooling velocity, further magnetic separation can be completely separated the two.This technical solution eliminates the broken, grinding process in traditional iron content slag iron recovery process, and cost recovery is greatly saved, and avoids secondary energy sources waste problem.
Description
Technical field
The present invention relates to metallurgical cinder processing technology fields, and in particular to a kind of quickly to recycle metallic iron in iron content slag
Method.
Background technique
The principal by product being discharged from blast furnace when blast furnace slag is manUfaCtUre of pig iron, when furnace temperature reaches 1400-1600 DEG C, furnace
Material melting, gangue, the ash content in coke and cosolvent in ore and other not can enter the impurity in the pig iron and formed with silicic acid
The slag above molten iron is floated on based on salt and aluminate.Some Enterprises are in process of production by raw materials for production condition and operating procedure
It is limited, often will appear slag iron and be difficult to isolated situation, more rich metallic iron is contained in the blast furnace cinder finally discharged, if
Directly it is near it is discarded can both seriously affect environmental problem, while being also the significant wastage of resource, in slag the phenomenon that band iron,
Current iron recovery process is crushed cold conditions slag, is ground, then use the side of magnetic separation again mainly by after slag cooling
Formula recycles the iron in cold conditions slag, and since cold conditions clinker grindability is poor, comminution energy conssumption is high, during resource reclaim, again
New energy waste problem is drawn, while this technique is relatively low to the rate of recovery of metallic iron.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of method for quickly recycling metallic iron in iron content slag, the party
Method eliminates the highly energy-consuming program that clinker in current iron recovery process is broken, grinds.
Technical solution is as follows：The method of metallic iron, key are according to the following steps in a kind of quick recycling iron content slag
It carries out：Iron content slag rotation granulation is obtained into amorphous slag granules and iron shot particle, by the amorphous slag granules and iron shot
Grain carries out magnetic separation separation.Using clinker, surface tension difference different with the density of iron separates the two to the technical program.?
Rotate it is granulated during, under centrifugal force and air cooled effect, iron content slag is quickly granulated into tiny spheric granules
And solidify, since clinker is different with the surface tension of metallic iron, it is respectively formed slag granules and iron shot particle, since rotation is granulated
The very fast slag particles of cooling velocity have little time crystallization amorphous state be presented, further magnetic separation both can be completely separated.This technology
Scheme eliminates the broken, grinding process in traditional iron content slag iron recovery process, and cost recovery is greatly saved, avoids two
Secondary energy waste problem.
As preferred：Above-mentioned rotation granulation carries out in high-temperature fusant rotation granulating device.
The magnetic separation separation is carried out using magnetic separation separation equipment.
The material being discharged from the rotation granulating device is transported to below the magnetic separation separation equipment through device for transporting objects
Carry out magnetic separation separation.Material conveying is carried out using special device, is conducive to save human cost.
Above-mentioned rotation granulating device includes splicing cylinder, granulation revolving cup is equipped in the splicing cylinder, the lower part of the splicing cylinder is set
There is material outlet, the granulation revolving cup is connected with power device.Material is thrown away granulate by the centrifugal force by being granulated revolving cup
Expect, the material particular diameter after granulation is smaller, without being crushed, being ground.
Pellet cooling device is equipped between above-mentioned granulation revolving cup and the inner wall of the splicing cylinder.Material after granulation is through cooling
Afterwards, quick solidification will not be bonded together again to each other at solid granulates, particle.
Above-mentioned magnetic separation separation equipment includes the magnetic separation sliding rail of annular, and the magnetic separation sliding rail is located at the device for transporting objects
Top, the magnetic separation sliding rail are equipped at least one magnetic separation magnetic sheet, and the magnetic separation magnetic sheet is connected with driving device.Using this scheme
Magnetic separation magnetic sheet is driven to move on magnetic separation sliding rail by driving device, it can be into when magnetic separation magnetic sheet is located at device for transporting objects top
Row magnetic separation can put down the amorphous slag granules magneticly elected when magnetic separation magnetic sheet produces device for transporting objects, iterative cycles, constantly
Magnetic separation separation.
Beneficial effect：Using the beneficial effects of the invention are as follows different with the density of iron using clinker, surface tension difference is right
The two is separated.During rotating granulated, under centrifugal force and air cooled effect, iron content slag is quickly granulated
It for tiny spheric granules and solidifies, since clinker is different with the surface tension of metallic iron, is respectively formed slag granules and iron shot
Grain has little time crystallization presentation amorphous state due to rotating the granulated very fast slag particles of cooling velocity, and further magnetic separation can be thorough
Both separation.This technical solution eliminates the broken, grinding process in traditional iron content slag iron recovery process, is greatly saved back
Harvest sheet avoids secondary energy sources waste problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that high-temperature fusant rotates granulating device and magnetic separation separation equipment；
Fig. 2 is the structural schematic diagram of magnetic separation separation equipment and device for transporting objects；
Fig. 3 is the A-A ' sectional view of Fig. 1.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described.
As shown in Figure 1-Figure 3, in a kind of quick recycling iron content slag metallic iron method, carry out according to the following steps：
High-temperature fusant rotation granulating device, magnetic separation separation equipment and device for transporting objects 9 is respectively set in step (1)；
Iron content slag is centrifuged by step (2) in high-temperature fusant rotation granulating device, and rotation granulation obtains amorphous state clinker
Particle and iron shot particle；
Step (3) carries out magnetic separation separation to the amorphous state slag granules and iron shot particle using magnetic separation separation equipment.
It is equipped with the device for transporting objects 9 between the high-temperature fusant rotation granulating device and magnetic separation separation equipment, from institute
The material for stating high-temperature fusant rotation granulating device discharge is transported to the magnetic separation separation equipment through device for transporting objects 9 and carries out magnetic separation
Separation.
The high-temperature fusant rotation granulating device includes splicing cylinder 1, and electric machine support, the motor branch are equipped in the splicing cylinder 1
Frame is equipped with motor bearing platform 6, and granulation revolving cup 2, the center line of the granulation revolving cup 2 and institute are equipped with above the motor bearing platform 6
The cylinder heart line for stating splicing cylinder 1 is overlapped, and the granulation revolving cup 2 is connected with power device, which is revolving cup motor 5, this turn
The shell of cup motor 5 is mounted on the lower surface of the motor bearing platform 6, and the output shaft of the revolving cup motor 5 is pierced by the electricity upwards
The bottom surface of machine supporting station 6, the granulation revolving cup 2 is fixedly connected with the output shaft of the revolving cup motor 5, the granulation revolving cup 2
Center line is overlapped with the output shaft axis of the revolving cup motor 5.
The wall of cup of the granulation revolving cup 2 is equipped with multiple granulation holes 3, and the lower part of the splicing cylinder 1 is equipped with material outlet 7,
The upper surface of the motor bearing platform 6 is equipped with the revolving cup electromagnet 4 of annular, and the revolving cup electromagnet 4 is around the revolving cup motor 5
Output shaft setting, the revolving cup electromagnet 4 are connected with power supply line 17, and one end of the power supply line 17 and the revolving cup electromagnet 4 connect
It connects, the other end is connected with power supply after being pierced by the splicing cylinder 1, is enclosed with high temperature-resisting protecting jacket, high temperature resistant on the power supply line 17
Protective jacket can protection power source line 17 do not scorched or premature aging by high temperature.
Pellet cooling device 8, the cooling dress of the pellet are equipped between granulation revolving cup 2 and the inner wall of the splicing cylinder 1
8 are set as ring pipe, which is fixedly mounted on the tube port position of the splicing cylinder 1, inner wall of the ring pipe along the splicing cylinder 1
One circle setting, the ring pipe are equipped with multiple spray coolant mouths, and the spray coolant mouth is towards in the splicing cylinder 1
Wall, spray coolant mouth in cooling procedure with certain pressure constantly towards splicing cylinder 1 inner wall spray coolant liquid, ejection it is cold
But liquid fills and is broken up into little particle on the inner wall for striking splicing cylinder 1, exhales towards all angles, expands film-cooled heat.
The device for transporting objects 9 is located at below the splicing cylinder 1 and magnetic separation separation equipment, the device for transporting objects 9
For belt conveyor, the two sides of the belt conveyor are provided along its length striker plate 10, and the material outlet 7 is located at described
The surface of belt conveyor feed end, discharge end of the magnetic separation sliding rail 11 close to the belt conveyor.
The magnetic separation separation equipment includes the magnetic separation sliding rail 11 of annular, and the magnetic separation sliding rail 11 is along the device for transporting objects 9
Length direction setting, the downward orthographic projection of the track section of the magnetic separation sliding rail 11 falls on the device for transporting objects 9, institute
The downward orthographic projection of track for stating the remaining section of magnetic separation sliding rail 11 falls in 9 outside of device for transporting objects, the magnetic separation sliding rail 11
It is equipped at least one magnetic separation magnetic sheet 12, the magnetic separation magnetic sheet 12 is connected with driving device.
The driving device includes the driving wheel 18 and driven wheel 16 positioned at 11 top of magnetic separation sliding rail, the driving wheel
18 are connected with driving motor 15, and the same driving belt 13 is arranged on the driving wheel 18 and driven wheel 16, and the magnetic separation is sliding
Rail 11 is correspondingly arranged with the driving belt 13.
The magnetic separation magnetic sheet 12 includes magnetic sheet shell 12a, is equipped with magnetic separation electromagnet 12b, the magnetic in magnetic sheet shell 12a
The outer wall of plate shell 12a is fixed with electrode fixed arm 12d, and face is set there are two electrode contact 12c on electrode fixed arm 12d,
Two electrode contact 12c are electrically connected with two power supply lines of the magnetic separation electromagnet 12b respectively；
It is equipped with one section of energization connector x, energization connector x on the magnetic separation sliding rail 11 and is being located at the device for transporting objects 9 just
Top, energization connector x include the stick type power source piece x1 of two faces setting, and two stick type power source piece x1 are along the magnetic
That selects sliding rail 11 moves towards setting, and two stick type power source piece x1 are separately connected the positive and negative anodes of power supply, two stick type power sources
The edge of piece x1 is bent respectively inwards, and electrode link slot, the magnetic separation magnetic sheet 12 are formed between two stick type power source piece x1
Along the magnetic separation sliding rail 11 when moving towards sliding, two electrode contact 12c enter the electrode link slot, and respectively with it is right
The stick type power source piece x1 answered is contacted and is led to, in use, the electromagnet of magnetic separation magnetic sheet 12 is turning to right above device for transporting objects 9
Afterwards, electrode contact 12c and stick type power source piece x1 is contacted and auto-power on magnetisation, after producing right above device for transporting objects 9, electricity
Pole connector 12c and stick type power source piece x1 are detached from and automatically power off demagnetization.
It is set on the driving belt 13 there are four synchronization blocks 14, is respectively corresponded on the magnetic separation sliding rail 11 and set that there are four sliding
The top of block, each synchronization blocks 14 is fixedly connected with the driving belt 13 respectively, the lower part of each synchronization blocks 14
It is fixedly connected respectively with the corresponding sliding block, is connected separately with the magnetic separation on the lower end surface of each synchronization blocks 14
Magnetic sheet 12, the magnetic separation magnetic sheet 12 along the device for transporting objects 9 width direction be arranged, the outer wall of magnetic sheet shell 12a with
The synchronization blocks 14 are fixedly connected.
In use, iron content slag is added first into the granulation revolving cup 2, and after being powered to the revolving cup electromagnet 4, slag
In iron (melting) can actively to granulation revolving cup 2 middle and lower part flow aggregation, pass through revolving cup motor 5 driving granulation revolving cup 2 rotate
Iron content slag is thrown away using centrifugal force, due to slag, iron density, the difference of surface tension, and by revolving cup electromagnet 4 to containing
After the enrichment of iron, the particulate material thrown away is divided into amorphous slag granules and without iron particle, the purity of iron in amorphous slag granules
It is higher, it the amorphous slag granules that throw away and is rapidly cooled without iron particle by pellet cooling device 8, will not be adhered again to each other
Together, the two uniformly passes through material outlet 7 and falls into device for transporting objects 9, and then is transported to below magnetic separation separation equipment, magnetic
When separation equipment being selected to operate, the magnetic separation sliding rail 11 is moved toward one another with the belt conveyor, and only there are nothings after being screened in this way
Iron particle is constantly discharged from the discharge end of device for transporting objects 9, produces material by the amorphous slag granules that magnetic separation magnetic sheet 12 is chosen
After conveying device 9, then the power-off of magnetic separation magnetic sheet 12 is transferred to material conveying to magnetic separation magnetic sheet 12 to put down amorphous slag granules
It is powered again to magnetic separation magnetic sheet 12 behind 9 top of device and carries out next round magnetic separation.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make multiple similar tables
Show, such transformation is fallen within the scope of protection of the present invention.
Claims (4)
1. a kind of method of metallic iron in quickly recycling iron content slag, it is characterised in that carry out according to the following steps：By iron content slag
Rotation granulation is carried out in high-temperature fusant rotation granulating device and obtains amorphous slag granules and iron shot particle, by the amorphous clinker
Particle and iron shot particle are using the progress magnetic separation separation of magnetic separation separation equipment；
The rotation granulating device includes splicing cylinder (1), and granulation revolving cup (2), the splicing cylinder (1) are equipped in the splicing cylinder (1)
Lower part be equipped with material outlet (7), the granulation revolving cup (2) is connected with power device, which is revolving cup motor (5),
Electric machine support is equipped in the splicing cylinder (1), which is equipped with motor bearing platform (6), the shell of the revolving cup motor (5)
Body is mounted on the lower surface of the motor bearing platform (6), and the granulation revolving cup (2) is located above the motor bearing platform (6), institute
The output shaft for stating revolving cup motor (5), which is pierced by the motor bearing platform (6) upwards and fixes afterwards with the bottom surface of granulation revolving cup (2), to be connected
It connects, the upper surface of the motor bearing platform (6) is equipped with the revolving cup electromagnet (4) of annular, which turns around described
The output shaft setting of cup motor (5), the revolving cup electromagnet (4) are connected with power supply line (17).
2. the method for metallic iron in a kind of quickly recycling iron content slag according to claim 1, it is characterised in that：From described
The material of rotation granulating device discharge is transported to below the magnetic separation separation equipment through device for transporting objects (9) carries out magnetic separation point
From.
3. the method for metallic iron in a kind of quickly recycling iron content slag according to claim 1 or 2, it is characterised in that：Institute
It states and is equipped with pellet cooling device (8) between granulation revolving cup (2) and the inner wall of the splicing cylinder (1).
4. the method for metallic iron in a kind of quickly recycling iron content slag according to claim 2, it is characterised in that：The magnetic
Selecting separation equipment includes the magnetic separation sliding rail (11) of annular, and the magnetic separation sliding rail (11) is located at the upper of the device for transporting objects (9)
Side, the magnetic separation sliding rail (11) are equipped at least one magnetic separation magnetic sheet (12), and the magnetic separation magnetic sheet (12) is connected with driving device.
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| CN201611015123.8A CN106636497B (en) | 2016-11-18 | 2016-11-18 | A kind of method of metallic iron in quick recycling iron content slag |
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| CN201611015123.8A CN106636497B (en) | 2016-11-18 | 2016-11-18 | A kind of method of metallic iron in quick recycling iron content slag |
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| CN106636497B true CN106636497B (en) | 2018-11-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246504A (en) * | 2018-01-11 | 2018-07-06 | 乐清市宏牛电气科技有限公司 | A kind of automation iron filings separator |
| CN111111908B (en) * | 2019-12-02 | 2022-04-01 | 宁波西磁磁业发展股份有限公司 | Magnetic plate compensation type belt iron removing machine |
| CN111229462B (en) * | 2020-03-04 | 2022-03-08 | 云南贵丰圆矿业科技开发有限责任公司 | Integrated metal mineral separator |
| CN113019643B (en) * | 2021-01-30 | 2022-07-01 | 青岛达能环保设备股份有限公司 | Energy-saving iron slag recycling equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757152A (en) * | 2014-01-03 | 2014-04-30 | 中冶东方工程技术有限公司 | Method and device for treating steel slag |
| CN103924012A (en) * | 2014-05-05 | 2014-07-16 | 重庆大学 | Device and method for recovering residual heat by dry-process granulation of metallurgical slag |
| CN204727907U (en) * | 2015-06-29 | 2015-10-28 | 上海宝钢节能环保技术有限公司 | Drum process slag whole process treatment system |
-
2016
- 2016-11-18 CN CN201611015123.8A patent/CN106636497B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757152A (en) * | 2014-01-03 | 2014-04-30 | 中冶东方工程技术有限公司 | Method and device for treating steel slag |
| CN103924012A (en) * | 2014-05-05 | 2014-07-16 | 重庆大学 | Device and method for recovering residual heat by dry-process granulation of metallurgical slag |
| CN204727907U (en) * | 2015-06-29 | 2015-10-28 | 上海宝钢节能环保技术有限公司 | Drum process slag whole process treatment system |
Non-Patent Citations (1)
| Title |
|---|
| 高炉炉渣余热回收技术的研究进展;王波 等;《热能动力工程》;20140331;第29卷(第2期);第113-120页、第213页 * |
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