CN106755662B - The resource recovery device and method of Copper converter smelting slag - Google Patents
The resource recovery device and method of Copper converter smelting slag Download PDFInfo
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- CN106755662B CN106755662B CN201611224168.6A CN201611224168A CN106755662B CN 106755662 B CN106755662 B CN 106755662B CN 201611224168 A CN201611224168 A CN 201611224168A CN 106755662 B CN106755662 B CN 106755662B
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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
- 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
- C21B3/08—Cooling slag
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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
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- Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of resource recovery device of Copper converter smelting slag and methods, including cinder ladle, vessel slag conveying device, metal bath and vessel slag collection chute, barricade is equipped in metal bath, metal bath is divided into left cabin and right cabin by barricade, left cabin and right cabin bottom are connection, the top in left cabin is equipped with vessel slag entrance, the top in right cabin is exported equipped with vessel slag, the bottom of metal bath is equipped with slope, the upper end on slope is set to the lower section in left cabin, Residue extraction pipeline is connected between the lower part and vessel slag conveying device of cinder ladle, vessel slag conveying device is set to the vessel slag entrance of left compartment roof, the output end of vessel slag conveying device is equipped with granulating device, the right compartment roof vessel slag of vessel slag collection chute and metal bath outlet connection, molten metal is equipped in metal bath.Metallic iron in reduction recycling vessel slag, realizes the recycling of vessel slag waste heat, and present apparatus structure is simple, environmentally protective, realizes that steel industry is developed a circular economy.
Description
Technical field
The present invention relates to metallurgical technology fields, and in particular to a kind of resource recovery device and method of Copper converter smelting slag.
Background technique
Vessel slag is the primary solids waste material of steel industry, and every smelting 1t steel about generates 100~130kg vessel slag, with me
The existing steel-making AOF calculation of state will generate nearly 70,000,000 t of vessel slag every year.In vessel slag containing 36~55% Ca0 and 15~
33% FeO, while also containing valuable elements such as Si, Mg, Al in slag, if be not used, these resources will be wasted.
The vessel slag that pile up like a mountain does not only take up a large amount of soil, and pollutes air, destroys water source, influences vegetation growth.Vessel slag
Temperature has thermal energy abundant between 1500~1650 DEG C, and existing vessel slag processing technique fails to show using this substantially
Heat, heat all scatter and disappear.Therefore, the processing and recycling of vessel slag are carried out, and effectively recycles afterheat of slags, not only contributes to save
Can consumption reduction, reduce greenhouse gas emission, while being also that steel industry is developed a circular economy, that realizes sustainable development must be by it
Road.
At present the method for common converter Slag treatment have the stewing method of tray method, drum granulation method, hot application method, heat, wind quenching method and
Water quenching.Tray method is the residues processing technique that the eighties in last century, Baosteel was introduced from nippon, and the technique is by liquid slag
Water-spraying control is poured into slag pan to 700 DEG C, liquid slag is quickly solidified and cracked due to water spray Quench, by what is cracked in slag pan
Clinker pours into slag discharging vehicle, and secondary cooling is cooled down three times to pouring into after 200 DEG C in bubble slag bath in slag discharging vehicle, is finally sent to cinder field.
Drum process is the independently developed Slag treatment method of Baosteel, clinker water quenching chilling in roller, and is arranged by the steel ball fragmentation in roller
Out.The stewing method of heat, which passes through, controls amount of water sprayed and the stewing temperature of heat, so that the steel slag in slag filling is cracked, fragmentation, is slagged tap with excavator.Water quenching
It is to smash the clinker of flowing with high pressure water, clinker chilling is shunk and fragmentation.Wind quenching method hits the clinker of flowing with high-speed flow
Broken, slag drop, which is shunk, is frozen into spheric granules, falls into pond.The purpose of above-mentioned process for treating steel slag is cooling, decomposition steel slag,
Clear up the free calcium oxide in steel slag simultaneously, to obtain the steel slag product of qualified stability.In the above method in addition to the stewing method of heat,
Remaining process for treating steel slag is required to steel slag and has preferable mobility energy, and in steel mill's actual production process, due to many
Reason, steel slag mobility it is difficult to ensure that, need to add clinker blowing heating device at this time, increase cost of investment and energy consumption.And it is hot
Stewing method long processing period, tailings granularity are uneven.In the device is complicated degree, investment and operation cost, tray method process procedure
More, the device is complicated for drum process, and maintenance difficulty is high, is both needed to higher operating cost.Water quenching misoperation easily causes explosion, consumption
Water is big, and tailings is difficult.In addition above-mentioned Technology of Steel Slag Processing not can be carried out recycling to steel slag hot, and steel slag sensible heat all dissipates
It loses.For tray method and wind quenching method there is also vapor yield is big, the problems such as corroding workshop and heavy industry equipment.Steel after treatment
In the activity and stability of slag, the steel slag stability that only hot stewing method and wind quenching method are handled is preferable.
Summary of the invention
The technical problem to be solved by the present invention is in view of the foregoing defects the prior art has, provide a kind of steel-making turn
The metallic iron in vessel slag is recycled in the resource recovery device and recovery method of clinker, reduction, realizes the recycling of vessel slag waste heat, this
Apparatus structure is simple, environmentally protective, achievees the purpose that energy-saving, reduction greenhouse gas emission, realizes that steel industry development follows
Ring economy.
Used technical solution is the present invention to solve above-mentioned technical problem:
A kind of resource recovery device of Copper converter smelting slag, including cinder ladle, vessel slag conveying device, metal bath and vessel slag
Collection chute, metal bath is interior to be equipped with barricade, and the inner cavity of metal bath is divided into left cabin and right cabin, left cabin and the right side by barricade
Cabin bottom is connection, and the top in left cabin is equipped with vessel slag entrance, and the top in right cabin is exported equipped with vessel slag, and metal is molten
The bottom in pond is equipped with slope, and the upper end on slope is set to the lower section in left cabin, between the lower part and vessel slag conveying device of cinder ladle
It is connected with Residue extraction pipeline, vessel slag conveying device is set to the vessel slag entrance of the left compartment roof of metal bath, vessel slag conveying
The output end of device is equipped with granulating device, and the right compartment roof vessel slag outlet of vessel slag collection chute and metal bath connects,
Molten metal is equipped in metal bath.
According to above-mentioned technical proposal, the liquid density in left cabin is less than the density of the vessel slag after granulation, right cabin
In liquid density be greater than granulation after vessel slag density.
According to above-mentioned technical proposal, the liquid density in left cabin is less than the density of the vessel slag after granulation, and metal is molten
The bottom in the right cabin in pond is equipped with stomata, and stomata is upwardly disposed.
According to above-mentioned technical proposal, the bottom of cinder ladle is exported equipped with molten iron.
According to above-mentioned technical proposal, the granulating device includes granulation nozzle.
According to above-mentioned technical proposal, molten metal includes various metals or a variety of aluminium alloys.
According to above-mentioned technical proposal, the aluminium alloy include any one in molten aluminum, copper liquid, magnesium liquid and tin liquor, two kinds,
The aluminium alloy that three kinds or four kinds of molten metals are mixed with arbitrary proportion.
According to above-mentioned technical proposal, the side wall of metal bath is equipped with cooling pipe.
According to above-mentioned technical proposal, the cooling medium in the cooling pipe is water or water vapour.
According to above-mentioned technical proposal, the metal bath is closed in spaces.
According to above-mentioned technical proposal, the side wall in the left cabin of the metal bath is equipped with stomata, left cabin side wall
Stomata is arranged downward along slope, and the bottom in the right cabin of metal bath also is provided with stomata, and the stomata of right cabin bottom is arranged upward；
Stomata is for driving vessel slag to change the direction of motion in metal bath.
Using the recovery method of above-described resource recovery device, comprising the following steps:
1) vessel slag is delivered to the resource recovery device, vessel slag is poured into cinder ladle；
2) reduction for carrying out ferrous oxide to vessel slag in cinder ladle using carbonaceous material is recycled, the iron that reduction recycling obtains
Water sinks to cinder ladle bottom, enters vessel slag conveying device by Residue extraction pipeline by restoring vessel slag after the recovery；
3) vessel slag is granulated into graininess by granulating device by vessel slag conveying device, into the left cabin of metal bath
Room；
4) vessel slag sinks in the molten metal in metal bath by the kinetic energy or self gravity that generate is granulated, and is formed strong
Heat convection processed, vessel slag heat pass to cooling pipe by medium of molten metal；
5) vessel slag enters the bottom of metal bath, and the right cabin of metal bath is entered along slope；
6) in the right cabin bottom of metal bath, vessel slag continues to be cooled, and floats up to metal bath table by natural buoyancy
Face forms certain height, is discharged from the delivery outlet in the right cabin of metal bath, into vessel slag collection chute.
According to above-mentioned technical proposal, in the step 3), the granularity after vessel slag granulation is no more than 100mm.
The invention has the following advantages:
The metallic iron in recycling vessel slag is restored by cinder ladle, passes through the molten metal and vessel slag progress heat in metal bath
Exchange and separation, realize the recycling of vessel slag waste heat, and present apparatus structure is simple, environmentally protective, reach energy-saving, reduce greenhouse
The purpose of gas discharge realizes that steel industry is developed a circular economy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of resource recovery device in the embodiment of the present invention；
Fig. 2 is the top view of Fig. 1；
In figure, 0- vessel slag, 1- vessel slag conveying device, 2- granulating device, 3- barricade, 4- stomata, 5- side wall, 6- metal
Molten bath, 7- vessel slag collection chute, the outlet of 8- vessel slag, the slope 9-, 10- cinder ladle, 11- drop, the outlet of 20- molten iron, 30- deslagging
Pipeline, 100- heat recovering device.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Shown in referring to Fig.1~Fig. 2, the resource recovery device of the Copper converter smelting slag in one embodiment provided by the invention,
Including cinder ladle 10, vessel slag conveying device 1, metal bath 6 and vessel slag collection chute 7, barricade 3, gear are equipped in metal bath 6
The inner cavity of metal bath 6 is divided into left cabin and right cabin by wall 3, and left cabin and right cabin bottom are connection, the top in left cabin
Portion is equipped with vessel slag entrance, and the top in right cabin is equipped with vessel slag outlet 8, and the bottom of metal bath 6 is equipped with slope 9, slope 9
Upper end is set to the lower section in left cabin, is connected with Residue extraction pipeline 30, converter between the lower part and vessel slag conveying device 1 of cinder ladle 10
Slag conveying device 1 is set to the vessel slag entrance of the left compartment roof of metal bath 6, and the output end of vessel slag conveying device 1 is equipped with
Granulating device 2, vessel slag collection chute 7 connect with the right compartment roof vessel slag of metal bath 6 outlet 8, set in metal bath 6
There is molten metal；Restore the metallic iron in recycling vessel slag by cinder ladle 10, by molten metal in metal bath 6 and vessel slag into
The recycling of vessel slag waste heat is realized in row heat exchange and separation, and present apparatus structure is simple, environmentally protective, is reached energy-saving, is reduced
The purpose of greenhouse gas emission realizes that steel industry is developed a circular economy.
Further, the liquid density in left cabin is less than the density of the vessel slag after granulation, the metal in right cabin
Liquid density is greater than the density of the vessel slag after granulation.
Further, the bottom in the right cabin of metal bath is equipped with stomata, and stomata is upwardly disposed, the molten metal in left cabin
Density is less than the density of the vessel slag after granulation, and the liquid density in right cabin is less than, greater than or equal to the converter after granulation
The density of slag.
Further, the bottom of cinder ladle 10 is equipped with molten iron outlet 20.
Further, the granulating device 2 includes granulation nozzle.
Further, molten metal includes a variety of aluminium alloys.
Further, the aluminium alloy includes any one in molten aluminum, copper liquid, magnesium liquid and tin liquor, two kinds, three kinds or four
The aluminium alloy that kind molten metal is mixed with arbitrary proportion.
Further, the side wall 5 of metal bath 6 is equipped with cooling pipe.
Further, the cooling medium in the cooling pipe is water or water vapour.
Further, the metal bath 6 is closed in spaces.
Further, the side wall 5 in the left cabin of the metal bath 6 is equipped with stomata 4, the stomata 4 of left cabin side wall 5
Spout arrange that be directed at the channel in left cabin and right cabin, the bottom in the right cabin of metal bath 6 also is provided with downward along slope 9
Stomata 4, the setting upward of the stomata 4 of right cabin bottom；Stomata 4 is for driving vessel slag to change movement side in metal bath 6
To.
Further, vessel slag conveying device is vessel slag pipeline, and device itself is to pass through without power, granulating device 2
Pressure sprays liquefied vessel slag by granulation spray head, forms granulated particles shape.
Using the recovery method of above-described resource recovery device, which comprises the following steps:
1) vessel slag is delivered to the resource recovery device, vessel slag is poured into cinder ladle 10；
2) reduction for carrying out ferrous oxide to vessel slag in cinder ladle 10 using carbonaceous material is recycled, and reduction recycling obtains
Molten iron sinks to 10 bottom of cinder ladle, from 20 discharge of molten iron outlet, is entered by restoring vessel slag after the recovery by Residue extraction pipeline 30
Vessel slag conveying device 1；
3) vessel slag is granulated into graininess by granulating device 2 by vessel slag conveying device 1, into a left side for metal bath 6
Cabin；
4) vessel slag sinks in the molten metal in metal bath 6 by the kinetic energy or self gravity of granulation generation, is formed
Forced-convection heat transfer, vessel slag heat pass to cooling pipe by medium of molten metal, and the cooled pipeline of heat recycles；
5) vessel slag enters the bottom of metal bath 6, and the right cabin of metal bath 6 is entered along slope 9；
6) in the right cabin bottom of metal bath 6, vessel slag continues to be cooled, float up to by natural buoyancy or aerodynamic force
6 surface of metal bath, forms certain height, is discharged from the delivery outlet in the right cabin of metal bath 6, into vessel slag collection chute
7。
Further, in the step 3), the granularity after vessel slag granulation is no more than 100mm.
In one embodiment of the present of invention, the working principle of the invention:
Using the ferrous oxide in carbonaceous material reduction vessel slag, metallic iron recycling is formed, by remaining vessel slag and gold
Belong to the method that liquid carries out heat exchange and separates vessel slag and recovery waste heat, and realizes the device of this method.It is found by the applicant that
1) operative liquid metal or alloy thermal conductivity with higher and boiling point, after high temperature vessel slag enters molten metal, molten metal is not
It can be evaporated because of rising rapidly for temperature, while the heat of vessel slag can be rapidly conducted to external heat recovery apparatus, realized
The quick heat exchange of vessel slag and molten metal and waste heat recycling；2) angle of wetting of molten metal and vessel slag is larger, in contact process
It will not mutually infiltrate, form the sinking or floating of vessel slag using the density variation of metal or alloy and vessel slag, realize and turn
Clinker is efficiently separated with molten metal；3) vessel slag is after restoring and metal is cooling, iron resource, sensible heat resource, clinker resource
It is fully recycled.
Fine drop 11 is formed after vessel slag granulation, surface area increases, and it is poor with central temperature to be formed simultaneously surface, is conducive to biography
Heat.It is preferably granulated in the present invention and driving gas is any one protective gas well known to various molten metals or alloy.This
It invents preferred molten metal or aluminium alloy includes two kinds, three kinds or four kinds molten aluminum, copper liquid, magnesium liquid, tin liquor and any of the above gold
Belong to the aluminium alloy that liquid is mixed with arbitrary proportion, preferred aluminium alloy is aluminium copper liquid (32.7wt.%Cu), almag liquid
(36.5wt.%Mg).Currently preferred metal bath 6 can be the combination of one or more metal or alloy liquid.The present invention is excellent
Cooling medium in 5 cooling pipe of side wall of choosing is any well known flowable cooling medium, more preferably cooling medium
For water or vapor.In preferred embodiment of the present invention, for driving vessel slag to change the stomata 4 of the direction of motion in metal bath 6
It is non-necessary.
Fig. 1 illustrates the feature and operation of vessel slag resource recovery device of the present invention.In typical operation, vessel slag 0
It is transported to heat recovering device 100, the reduction recycling of ferrous oxide in slag is completed in cinder ladle 10, the molten iron recycled is logical
The discharge of iron mouth 20 is crossed, vessel slag 0 enters vessel slag conveying device 1 by Residue extraction pipeline 30, and vessel slag is granulated by granulating device 2
Drop 11, drop 11 enter the left side of metal bath 6 under the action of being granulated kinetic energy and gravity, and metal bath 6 is by 3 part of barricade
It is separated into the left and right sides of bottom connection.It is attached that vessel slag drop 11 moves downwardly to molten bath bottom ramp 9 in metal bath 6
Closely, by the driving gas-powered that is entered by stomata 4 towards moving on the right side of metal bath 6, into 6 right side of metal bath, and by by
The driving gas-powered that bottom stomata 4 enters is moved towards 6 right upper portion of metal bath, is discharged, is entered at vessel slag outlet 8
Vessel slag collection chute 7.The heat exchange with molten metal 6 is realized during vessel slag drop 11 moves in entire metal bath
Process, heat are finally taken away and are recycled by cooling medium (not shown) in the cooling pipe (not shown) that is set in side wall 5.
An important factor for influencing the design of vessel slag resource recovery device includes: 0 stream by the vessel slag of conveying device 1
Dynamic speed, the size of vessel slag drop 11, material itself physics for constituting vessel slag 0, chemical property etc..Such as temperature is higher
Vessel slag 0 needs granulating device 2 to be granulated into more tiny drop 11, to improve heat transfer rate, needs longer metal bath deep
Degree is to cool down vessel slag drop 11.
Granular vessel slag can be used for any purposes, but be particularly useful the preparation of cement and concrete.
Vessel slag 0 is conveyed with (hereinafter referred to as ' delivery temperature ') under high temperature by conveying device 1.The conveying of vessel slag 0
Temperature can be about 1400 DEG C to about 1600 DEG C.The flow rate of vessel slag 0 is variable and depends on heat recovering device 100
The design and service condition of other components.Typically, the flow rate can be from for midget plant or experimental rig
As low as about double centner/minute is to several tons/minutes for technical grade factory.The flow rate can be referred to as rate of slagging tap.
Cinder ladle 10, side wall 5 and partition wall 3 can be manufactured by any material well known in the art.It is preferred to require to be at low cost, resistance to
Metallic solution burn into is easy to construct.Such as optional refractory material.
Changeable according to purposes after the granulation of vessel slag for vessel slag drop 11, maximum is no more than 100mm, preferably
Granulation granularity between 3mm~10mm.
The operating temperature of metal bath 6 is the arbitrary temp of metallic solution or alloy melting point or more.It preferably should be significant low
In the entrance temperature of vessel slag.Preferred metal bath operating temperature is between 200 DEG C -600 DEG C.It is cooling by metal bath 6
Slag, the temperature that the bulk material of resource recovery device is discharged should be lower than 800 DEG C.
It is public in this field for being set to cooling medium (not shown) cooling medium in the cooling pipe (not shown) in side wall 5
Any cooling medium known, preferably cooling medium are water or vapor.Typically, in the case where slag, pass through control
Metal bath temperature makes water cooling medium direct gasification, and formation temperature is higher than 200 DEG C, saturated vapor of the pressure greater than 1MPa or
Superheated steam discharge, carries out subsequent waste heat recycling.Any well known mode in this field can be used to the thermal energy recycling of the steam,
Such as supplied for generating electricity, for steam.
Above is only presently preferred embodiments of the present invention, and of course, the scope of rights of the present invention cannot be limited by this,
Therefore according to equivalence changes made by scope of the present invention patent, still belong to protection scope of the present invention.
Claims (9)
1. a kind of resource recovery device of Copper converter smelting slag, which is characterized in that molten including cinder ladle, vessel slag conveying device, metal
Pond and vessel slag collection chute, metal bath is interior to be equipped with barricade, and the inner cavity of metal bath is divided into left cabin and right cabin by barricade,
Left cabin and right cabin bottom are connection, and the top in left cabin is equipped with vessel slag entrance, and the top in right cabin is equipped with vessel slag
The bottom of outlet, metal bath is equipped with slope, and the upper end on slope is set to the lower section in left cabin, and the lower part of cinder ladle and vessel slag are defeated
It send and is connected with Residue extraction pipeline between device, vessel slag conveying device is set to the vessel slag entrance of the left compartment roof of metal bath,
The output end of vessel slag conveying device is equipped with granulating device, the right compartment roof vessel slag of vessel slag collection chute and metal bath
Outlet connection, metal bath is interior to be equipped with molten metal；
Liquid density in left cabin is less than the density of the vessel slag after granulation, and the liquid density in right cabin is greater than granulation
The density of vessel slag afterwards.
2. the resource recovery device of Copper converter smelting slag according to claim 1, which is characterized in that the molten metal in left cabin
Density is less than the density of the vessel slag after granulation, and the bottom in the right cabin of metal bath is equipped with stomata, and stomata is upwardly disposed.
3. the resource recovery device of Copper converter smelting slag according to claim 1, which is characterized in that the bottom of cinder ladle is equipped with iron
Water out.
4. the resource recovery device of Copper converter smelting slag according to claim 1, which is characterized in that the granulating device packet
Include granulation nozzle.
5. the resource recovery device of Copper converter smelting slag according to claim 1, which is characterized in that molten metal includes a variety of gold
Category or aluminium alloy.
6. the resource recovery device of Copper converter smelting slag according to claim 5, which is characterized in that the aluminium alloy includes
The aluminium alloy that any one in molten aluminum, copper liquid, magnesium liquid and tin liquor, two kinds, three kinds or four kinds of molten metals are mixed with arbitrary proportion.
7. the resource recovery device of Copper converter smelting slag according to claim 1, which is characterized in that on the side wall of metal bath
Equipped with cooling pipe.
8. using the recovery method of resource recovery device described in claim 1, which comprises the following steps:
1) vessel slag is delivered to the resource recovery device, vessel slag is poured into cinder ladle；
2) reduction for carrying out ferrous oxide to vessel slag in cinder ladle using carbonaceous material is recycled, and the molten iron that reduction recycling obtains is heavy
Enter cinder ladle bottom, vessel slag conveying device is entered by Residue extraction pipeline by restoring vessel slag after the recovery；
3) vessel slag is granulated into graininess by granulating device by vessel slag conveying device, into the left cabin of metal bath；
4) vessel slag sinks in the molten metal in metal bath by the kinetic energy or self gravity that generate is granulated, and forms pressure pair
Stream heat exchange, vessel slag heat are cooled down by medium of molten metal；
5) vessel slag enters the bottom of metal bath, and the right cabin of metal bath is entered along slope；
6) vessel slag floats up to metal bath surface from the right cabin bottom of metal bath, certain height is formed, from metal bath
The delivery outlet in right cabin is discharged, into vessel slag collection chute.
9. recovery method according to claim 8, which is characterized in that in the step 3), after vessel slag granulation
Granularity is no more than 100mm.
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| CN110090488B (en) * | 2019-05-31 | 2021-04-06 | 安徽中巨机电设备有限公司 | Slag-water separation device |
| CN114653955A (en) * | 2022-02-12 | 2022-06-24 | 山东汇嘉磁电科技有限公司 | Gas atomization powder making method and gas atomization powder making system using same |
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| CN201560201U (en) * | 2009-12-08 | 2010-08-25 | 攀钢集团攀枝花钢钒有限公司 | Slag-iron separation device for vanadium-titanium blast furnace slag |
| CN204999924U (en) * | 2015-07-06 | 2016-01-27 | 阳谷祥光铜业有限公司 | Granulating device |
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