CN107075609A - The method for being refined from parent metal and reclaiming metallic iron - Google Patents
The method for being refined from parent metal and reclaiming metallic iron Download PDFInfo
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- CN107075609A CN107075609A CN201480081916.2A CN201480081916A CN107075609A CN 107075609 A CN107075609 A CN 107075609A CN 201480081916 A CN201480081916 A CN 201480081916A CN 107075609 A CN107075609 A CN 107075609A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/14—Refining in the solid state
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention relates to a kind of method for being refined from parent metal and reclaiming metallic iron, more particularly, to the following method for being refined from parent metal and reclaiming metallic iron, this method includes：The parent metal existed together for the clinker during iron and metallic iron, by carrying out being used for the first refining cutting or drill with punching parent metal, by described matrix metal be reduced in size to a diameter of 300mm crush size；Crush the parent metal refined for the first time；Particle size separation is carried out according to the size of the parent metal refined for the first time；Double refining is carried out by bead；And particle size separation is carried out again so that when parent metal size is 1~300mm, the content of metallic iron (MT Fe) is 90 weight % or higher.In the present invention, though it will be difficult to be processed into certain size by common crushing or cutting action come the parent metal crushed containing a large amount of metallic irons but due to large scale, processing is refined again, so that the content of metallic iron is the 90% or higher of parent metal gross weight, the parent metal for the alternative materials that can be used as the pig iron is thus provided.Therefore this have the advantage that, while realizing that waste material is recycled, promote the import substitution effect all from the pig iron of external import, so as to reduce steel making production cost.
Description
Technical field
The present invention relates to a kind of method for being refined from parent metal and reclaiming metallic iron, more particularly, to following
The method for being refined from parent metal and reclaiming metallic iron, this method includes：For the clinker during iron and metallic iron
The parent metal existed together, by the first refining for carrying out being used to cut or drill with punching parent metal, by the base
Body metal be reduced in size to a diameter of 300mm crush size；Crush the parent metal refined for the first time；According to first
The size of the parent metal of refining carries out grading to parent metal；Double refining is carried out by bead；And separation
The granularity of the parent metal of double refining so that when parent metal size is 1~300mm, the content of metallic iron (MT Fe) is
90 weight % or higher.
Background technology
During iron, clinker is inevitable adjoint accessory substance.Blast-furnace slag is to obtain life from raw material iron ore
Produced during iron.Blast-furnace slag be by by iron ore, coke, lime stone etc. put into smelting furnace in, combustion of coke and plus
Heat/reducing iron ore and obtain the residue remained after the pig iron.This blast-furnace slag is mainly reused in the part of civil engineering
(barasu), chlorination silicon fertilizer etc..
Converter slag is by being removed in the oxidizing gas atmosphere of converter (converter) in the pig iron that blast furnace is produced
Carbon, silicon, phosphorus etc. and obtain the residue remained after molten steel.For the clinker produced in the work of the steel and iron manufacturing of converter,
Only more than 4,000,000 tons are just produced every year in South Korea.Nowadays, almost most of blast-furnace slag is reused, and contains special composition
The converter slag of (such as heavy metal component) is not reused, and is handled by the method such as filled.Furthermore, it is necessary to which a kind of use
In the safety method of processing waste residue, because converter slag is classified as environmentally harmful pollutant.On the other hand, due to turning
Stove clinker contains substantial amounts of metallic iron (being usually the 15~25% of slag amount), it is therefore desirable to metallic iron recovery operation.
Include passing through crane by iron for refining, separating and reclaiming the technology of metal ferrous components contained in parent metal
Certain altitude is arrived in ball lifting, and makes iron ball drop to be placed on the parent metal of ground, and applying impact to parent metal is carried out
The method of crushing.Another conventional recovery method includes coming by using the gases at high pressure cutting method of LPG G＆Os
The method for separating the parent metal do not crushed.
However, by making iron ball drop on parent metal and to the method for parent metal application physical impact, i.e., it is above-mentioned
, there is the problem of working environment deteriorates and causes environmental pollution in one of conventional metallic iron recovery method, because when iron ball is to base
When body metal produces impact, the substantial amounts of dust that disperses containing harmful heavy metal can be produced, and there is iron ball must
The problem of repeatedly must falling for several times, due to being that parent metal does not split into certain size, and parent metal is hard in itself.This
Outside, the method that parent metal is cut by gases at high pressure cutting, i.e., another routine techniques, with following problem：Due to
Substantial amounts of oxygen and LPG are consumed during work and cost is high, included in parent metal and harmful heavy metal is by oxygen
Change and therefore plurality of heavy metal is discharged into air, heavy metal can cause serious harmful effect to staff, and in work
There is the danger of blast during work.Additionally, there are the problem of be, the operating efficiency of staff is very low, because high pressure gas
Body cutting is difficult in itself.
In order to solve the above problems, Korean Patent No. 0901989 proposes a kind of method, utilizes the sensible heat of parent metal
To heat non magnetic clinker and Waste iron slag, that is, the heat transfer coefficient and clinker by using granulated iron contained in clinker heat transfer
After difference between coefficient is heated, then rapidly cooled slag so that the non magnetic clinker and the Waste iron slag it is interior
Portion is cracked by applying thermal shock, if there is crackle, then can be easy to crush along crackle when crushing,
Therefore by crush because size is small and be it is circular be difficult to the clinker crushed, metallic iron can be individually reclaimed, to improve matrix gold
The rate of recovery of contained metal in category.However it remains the problem of be, it is difficult to only make to have by the difference of thermal coefficient of expansion
Large-sized non magnetic clinker is cracked, and is dimensioned for being separately separated and sorting in the parent metal of pulverizer, because
Although for parent metal because crackle is crushed, the size for the parent metal crushed is not certain.
The content of the invention
Technical problem
The present invention makes to solve the above problems, it is an object of the invention to provide one kind from parent metal it is smart
Refining and the method for reclaiming metallic iron, wherein be difficult to containing a large amount of metallic irons but due to large scale by common pulverizing process or
The parent metal that cutting action is crushed, certain size is cut directly into using cutting machine, or using punching drilling machine to base
Punching after the drilling of body metal, so that described matrix metal is reduced in size into size of the maximum gauge as 300mm；Then, use
Pulverizer crushes described matrix metal again；Double refining is carried out by carrying out shot-peening processing to parent metal；And to base
Body metal carries out particle size separation so that the content of the metallic iron (MT Fe) in the parent metal with 1~300mm sizes is 90
Weight % or higher, the parent metal thus processed can be used as the alternative materials of the pig iron.
In addition, it is a further object of the present invention to provide a kind of environment friendliness refining from parent metal and reclaiming gold
Belong to iron method, by directly cutting or drilling after punching parent metal parent metal is reduced to certain size, pass through
Physically screening sub-elects the size of parent metal, and individually refines, separates and reclaim the certain size containing a large amount of metallic irons
Parent metal, when crushing parent metal by this process, do not produce the dust that disperses so that with the feature of environmental protection, and by
Without using substantial amounts of electric power when cutting or drilling with punching, overall process cost can be reduced, so that economical.
More particularly, the purpose of the present invention is to support boring work, by the base for recycling steel matrix metal processed
The body metal pretreatment process segment is applicable the drilling equipment for steel matrix metal processed to be drilled by certain depth, so as to easily
Crush steel matrix metal processed, and by the steel matrix metals processed of the various sizes with being produced in steel making processes accordingly
Regulation height, effectively to carry out boring work.
In addition, the purpose of the present invention is to support boring work, drilled by including and constructing being used for optimization characteristics
The apex point of steel matrix metal processed, to be more effectively carried out boring work, wherein, the steel matrix metal processed includes various metals,
Such as clinker and steel.
Technical scheme
According to the method for being refined from parent metal and reclaiming metallic iron of the present invention, it is characterised in that including following rank
Section：Parent metal pre-processes the process segment, by cutting or drilling and punching parent metal, parent metal is reduced to certain
Size；Shredding stage, will be ground into certain size by the parent metal in described matrix metal pretreatment process segment；For the first time
In the particle size separation stage, it will be sorted and separated by certain size by the parent metal of the shredding stage；Shot-peening is processed
Refining stage, is refined by carrying out bead to the parent metal by the initial grain size separation phase；And
Secondary particle size separation phase, the parent metal that refining stage is processed by the shot-peening is separated by certain size again
And sorting.
Herein preferably, the process segment is pre-processed in parent metal, is drilled using drilling machine, use disintegrating machine
(breaker) it is punched out.The parent metal pretreatment process segment is such as the next stage：First use specially-made drill bit and drilling machine
After being drilled on parent metal body and getting hole, bore portion is punched out using disintegrating machine, so as to will be difficult to be put into powder
The parent metal for the 2m sizes crushed in broken machine is broken into size for 300mm or smaller fritter.
Therefore, if parent metal only can be worked into 300mm or smaller size by cutting, can only it carry out
Cut work., can if parent metal can be easily only worked into 300mm or smaller size by drilling and punching
Only to be drilled and punch work.
Certainly, as needed, the two processes can also be performed together.
Because metallic iron and clinker with strong hardness are present in parent metal together, therefore do not allowed with common cutting machine
Easily cut parent metal.
Therefore, when carrying out the cutting of parent metal in the stage, preferably use and used using diamond segment is specially-made
In the cutting machine of cutting parent metal.Moreover it is preferred that when being drilled in the stage, if to having by force containing a large amount of
The parent metal body of the metallic iron of hardness directly drills, then preferably uses specially-made drilling machine to carry out.Hereafter, in punching
When, pressure is applied to bore portion by using disintegrating machine and crushed so that large-sized matrix gold with about 2m
Category can be easily separated and be broken into size for 300mm or smaller parent metal.
Here, in shredding stage, the size of pulverized parent metal is 0.01~300mm, preferably uses rod mill and enters
Row is crushed.
On the other hand, in initial grain size separation phase, preferably by 0.01~20mm and 20~300mm size separation and
Parent metal is sorted, and in secondary particle size separation phase, is preferably separated and is sorted by 0.01~1mm and 1~300mm size
Parent metal.In addition, initial grain size separation phase and secondary particle size separation phase can be screened by using screening plant
To perform.
In addition, according to the method for being refined from parent metal and reclaiming metallic iron of the present invention, it is characterised in that described
After initial grain size separation phase, in addition to non magnetic clinker recovery stage, it is from the parent metal or stove for sorting and isolating
The non magnetic clinker with 0.01~20mm sizes is only individually reclaimed in slag.Non magnetic clinker recovery stage is to be used to only individually receive
Collection and the stage for reclaiming the non magnetic clinker that can be used as manufacturing the material used during Revetment block.
Here, the non magnetic clinker recovery stage, including：The pulverized slag broken stage is reclaimed, from the initial grain size point
From in the parent metal or clinker that the stage is sorted and separates, parent metal and clinker with 0.01~20mm sizes are crushed；
And
The magnetic separating stage, using magnetic grader, from the recovery matrix gold in the recovery broken stage size reduction of pulverized slag
Category is reclaimed in clinker, is only separately separated and reclaims the non magnetic clinker with 0.01~20mm sizes.Here, being reclaimed described
Clinker shredding stage, is preferably crushed by using ball mill.
According to the method for the refining of the present invention and recovery, size is metallic iron contained in 1~300mm parent metal
Content accounts for the 90% or higher of parent metal gross weight.Therefore, it is possible to use parent metal is used as the pig iron of all imports
Alternative materials, so as to obtain the import substitution effect of the pig iron, and can reduce the cost of steel making.
Particularly, according to the refining of the present invention and the method for reclaiming parent metal, it the advantage is that, parent metal can fill
Ground is divided to be used as the alternative materials of the pig iron, because sulphur contained in parent metal or the content of phosphorus, i.e. so that parent metal is difficult to use
Make the factor of the pig iron, be remarkably decreased.
Technique effect
According to the present invention, it will be difficult to containing a large amount of metallic irons but due to large scale by conventional pulverizing process or cutting work
The parent metal that sequence is crushed is processed into certain size, then refines so that the content of the metallic iron of parent metal is matrix gold
Belong to the 90% or higher of gross weight.Meanwhile, the content reduction of contained sulphur and phosphorus in parent metal.Therefore, advantages of the present invention
It is, by providing the parent metal for the alternative materials that can be used as the pig iron, waste material can be recycled, and by promoting
The import substitution effect of the pig iron, can reduce steel making production cost.
In addition, the further advantage of the present invention is, with the feature of environmental protection, because not produced in the stage of refining processing parent metal
The raw dust that disperses containing a large amount of harmful heavy metals, and it is economical, due to carrying out reduction parent metal
Without using many electric power during the manufacturing procedure of size, so as to reduce overall process cost.
In addition, the further advantage of the present invention is, although the steel matrix metal processed provided in steel making processes has respectively
Kind of size, the working depth of apex point can be adjusted according to the size of steel matrix metal processed, and the size for the eyelet that drills with
Depth can easily be adjusted, because the drilling equipment for pre-processing the process segment suitable for parent metal is included removably
Apex point.
In addition, the further advantage of the present invention is, can be effectively and economical by using the apex point optimized in boring work
Ground drills to the steel matrix metal processed that the various materials of such as clinker and steel exist together.
On the other hand, further advantage of the invention is, due to can for example reclaim various effective materials of recovery
Steel is put into steel making process again, therefore can reduce steel making production cost, and can both have been shortened for by crushing
The time for the process consumption that steel matrix metal processed is recycled, the energy of consumption can be reduced again, so that highly effective and warp
Ji.
Brief description of the drawings
Fig. 1 is the whole process for representing the method that metallic iron is refined and reclaimed from parent metal according to the present invention
Figure.
Fig. 2 is the parent metal pretreatment in the method that metallic iron is refined and reclaimed from parent metal according to the present invention
What the process segment used is used for the front elevation of the drilling equipment of drilling steel matrix metal processed.
Fig. 3 is the parent metal pretreatment in the method that metallic iron is refined and reclaimed from parent metal according to the present invention
What the process segment used is used for the side view of the drilling equipment of drilling steel matrix metal processed.
Fig. 4 is the sectional view of Fig. 2 transmission cylinder.
Fig. 5 is to represent the metal Ferrum content refined according to the present invention for contained by 90 weight % or higher parent metal
The test report of the measurement result of the content of sulphur and phosphorus.
Embodiment
1 to accompanying drawing 5 with reference to the accompanying drawings, and embodiments of the invention will be described in detail.
Fig. 1 is the figure for the whole process for representing the method that metallic iron is refined and reclaimed from parent metal of the present invention.
1. parent metal pretreatment process segment (S100)
The parent metal pretreatment process segment be by using the special cutting machine or drilling machine with diamond segment and
Disintegrating machine reduces the size for the parent metal that clinker and metallic iron exist together, and parent metal pretreatment is processed into suitable for powder
The stage of broken size.
Here, being used for the drilling equipment general of steel matrix metal processed of drilling for one of the cutting machine or drilling machine that use
Reference picture 2 is described in detail to Fig. 4.
Fig. 2 is the front elevation of the drilling equipment for being used for drilling steel matrix metal processed according to embodiments of the present invention, and Fig. 3 is root
According to the side view of the drilling equipment for being used for drilling steel matrix metal processed of the embodiment of the present invention.
Reference picture 2 and Fig. 3, the drilling equipment for being used for drilling steel matrix metal processed according to embodiments of the present invention include：Work
Make platform (100), steel matrix metal processed is placed on above it；Supporting framework unit (200), is arranged to from the workbench
(100) upwardly extend and with certain altitude；Unit (300) is bored in one or more drillings, and it is connected to the support frame
Top plate (210) bottom of unit (200)；And control unit, control the drilling to bore the running of unit (300).
Here, the workbench (100) is constituted with the flat form with certain altitude.Also, such as conveyer belt from
Dynamic conveyer is set on the table, to perform continuous automatic process.It therefore, it can continuously supply steel matrix metal processed
Workbench is given to, to be transmitted after boring work is completed for subsequent processing.
The basic of drilling equipment is formed together with workbench (100) in addition, being formed with the top of the workbench (100)
The supporting framework unit (200) of agent structure.In view of the size for the steel matrix metal processed being supplied to, by the support frame list
Member 200 is arranged to keep certain height.
The supporting framework unit (200) is substantially made up of the board-like material with some strength, such as iron steel plate.
Open to work before the supporting framework unit 200, and closed below by back plate (220), and both sides can also be set
Count into it is open, in order to the supply or discharge of steel matrix metal processed.
If the both sides of the supporting framework unit (200) are opened, bore unit (300) in view of the drilling and be connected to
The situation of top plate (210) bottom of the supporting framework unit (200), it is as in this embodiment, in front, left side and above right
Side forms the pillar (230) for roof supporting (210) respectively, preferably to bear loading.Certainly, if connecting multiple institutes
State drilling bore unit (300) and the length of the workbench (100) and supporting framework unit (200) increase, then in above
Between some places pillars (230) are set, to increase security.
On the other hand, the drilling is bored unit (300) and is configured to, including is filled by the rotation driving for supplying driven by power
(310) are put, the cylinder control unit (320) in the drive shaft of the rotating driving device (310) and being installed on it is connected to, sets
Put the transmission cylinder (330) below the cylinder control unit (320) and transmit the dismountable apex point of cylinder (330) from described
(340)。
Here, apex point (340) is preferably diamond apex point, but it is not limited to this.
The rotating driving device (310) is typically the common motor by driven by power, and firmly fixes setting
Top plate (210) bottom in the supporting framework unit (200).Particularly there is provided the rotating driving device with enough moments of torsion
(310), because it is in addition to apex point described in rotation driving (340), in addition it is also necessary to the rotating driving device (310) will be attached to
The cylinder control unit (320) of lower section and transmission cylinder (330) rotation driving all together.On the other hand, the rotation is driven
Dynamic device 310 can use the controllable variable motor drive mechanism of rotary speed into so that can be according to the chi of steel matrix metal processed
Very little or status adjustment moment of torsion.
The cylinder control unit (320) is the flexible device for being used to control the transmission cylinder (330).The cylinder control
Device 320 processed described in the size Control according to the steel matrix metal processed being fed on the workbench (100) by transmitting cylinder
(330) to adjust the initial working heights of the apex point (340), and institute is made by slowly stretching the transmission cylinder (330)
State apex point (340) decline so that the drilling of certain depth is carried out to steel matrix metal processed.
The cylinder control unit (320) has different compositions according to the type of the transmission cylinder (330).If described
Transmission cylinder (330) is hydraulic pressure or vapour-pressure type, then its can equipped with for by adjust hydraulic oil or compressed air flow and
Pressure come realize transmission cylinder (330) extension and contraction control device.If the transmission cylinder (330) is electrodynamic type, it can match somebody with somebody
The action for the device by adjusting such as motor or screw rod is had to control the flexible device of transmission cylinder (330).
Fig. 4 represents that fluid pressure type or vapour-pressure type transmit the sectional view of cylinder.
Reference picture 4, transmission cylinder according to embodiments of the present invention is fixed to cylinder control unit (320) and is configured to include
First piston bar (331) with maximum outside diameter, the second piston bar slided up and down in the First piston bar (331)
(332) the 3rd piston rod (333) and in the second piston bar (332) slided up and down.
Being connected with the top of the First piston bar (331) makes the first oil pipe of hydraulic oil or compressed air inflow and outflow
(31).The bottom of the side of First piston bar 331, which is connected with two or more, makes hydraulic oil or compressed air inflow and outflow
Second oil pipe (32).In addition, the bottom of the First piston bar (331) is formed with size and the second piston bar (332)
The corresponding opening port of external diameter.Also, it is formed with seal (34) inwardly projectingly in the second piston bar 332 so that
The oil or compressed air of inflow are not discharged to the outside.
The stream for making hydraulic oil or compressed air inflow and outflow is formed with the upper end center sections of the second piston bar (332)
Enter hole (35).The seal (34) of internal diameter of the First piston bar (331) is closely attached in the second piston bar 332
Top outer in be protrudedly formed.The bottom of the second piston bar is formed with size and the 3rd piston rod (333)
The corresponding opening port of external diameter, and similarly, the bottom of the second piston bar 332 it is inwardly projecting be formed with seal
(34) so that hydraulic oil or compressed air are not discharged to the outside.Particularly, the cylinder body of second piston bar (332) sidepiece is being formed
In be formed with least two inner flow passages (33), the inner flow passage 33 pass through second piston bar (332) inside connection second piston
Bar (332) outside top and its inside bottom.
The stream for making hydraulic oil or compressed air inflow and outflow is formed with the top center portion of the 3rd piston rod (333)
Enter hole (35).The seal (34) of internal diameter of the second piston bar (332) is closely attached in the 3rd piston rod 333
Top outer in be protrudedly formed.The bottom lock of 3rd piston rod 333, and joint portion (334) (do not show in Fig. 4
Go out) it is connected to the 3rd piston rod (333) bottom so that and the apex point (340) can be attached to joint portion 334.
The hydraulic oil or compressed air for flowing into second oil pipe (32) are flowed into the close of the bottom of First piston bar (331)
Space between the seal (34) at the top of sealing (34) and second piston bar (332), along the interior of second piston bar (332)
Portion's runner (33) flows, then is flowed into the top of the seal (34) and the 3rd piston rod (333) of the bottom of second piston bar (332)
Space between the seal (34) in portion.
The action of the transmission cylinder (330) constituted as described above is briefly described below.
First, the stretching of cylinder is illustrated.When hydraulic oil or compressed air pass through the cylinder control unit
(320) when flowing into cylinder through first oil pipe (31), pressure transmission to the bottom of the 3rd piston rod (333) so that the
Three piston rods (333) decline, and the second piston bar (332) declines also by pressure.Now, it is present in the 3rd work
Between the seal (34) at the top of stopper rod (333) and the seal (34) of the bottom of second piston bar (332), it is described second live
In the inner flow passage (33) of stopper rod (332) and the second piston bar (332) top seal (34) and described first
Hydraulic oil or compressed air between the seal (34) of the bottom of piston rod (331) are discharged into by second oil pipe (32)
The cylinder control unit (320).
Then, the contractive action to cylinder is illustrated.When hydraulic oil or compressed air pass through the cylinder control unit
(320) when flowing into cylinder through second oil pipe (32), seal of the pressure transmission to the top of the 3rd piston rod (333)
(34) so that the 3rd piston rod (333) rises.In addition, pressure transmission is to the close of the top of the second piston bar (332)
Sealing (34) so that the second piston bar (332) also rises.Now, it is present in hydraulic oil or the compression of each piston rod inner
Air is discharged into the cylinder control unit (320) by ostium (35) and the first oil pipe (31).
On the other hand, the transmission cylinder (330) is configured to, and when the transmission cylinder shrinks, minimum length is 50
~70cm or so, when the transmission cylinder stretches, maximum length is 150~200cm or so.Its reason is to consider drilling dress
The size and the size of the steel matrix metal processed of supply put.
That is, if minimum of contraction length is more than 70cm, the size of machinable steel matrix metal processed can not be kept away
It is restricted with exempting from.If minimum of contraction length is less than 50cm, in order to carry out the drilling of certain depth to steel matrix metal processed,
The number of plies of cylinder inevitably increases to 4 layers or 5 layers.
If in addition, maximum extension length is less than 150cm, according to the size of the steel matrix metal processed of supply, base steel processed
Body metal may not be drilled out to enough depth.If maximum extension length is more than 200cm, due to transmission cylinder (330)
Loading and size excessively increase, then rotating driving device (310) may be applied and overloaded.Generally, the steel matrix metal processed of supply
Size be no more than 200cm, therefore transmission cylinder 330 need not be formed as with more than 200cm length.
As described above, being formed with joint portion in the bottom of the 3rd piston rod (333) of the bottom of the transmission cylinder (330)
(334).The apex point (340) of actual borehole steel matrix metal is attached to the joint portion (334).
The apex point (340) can use the common ultra-light alloy for instrument to manufacture, it is preferable that using having
The ultra-light alloy of the characteristic different from general tool steel is manufactured, so as to the steel matrix metal processed that more effectively drills.
That is, the use of there is hardness (Hardness) being Rockwell A mark hardness (HRA) 10~14, cross fracture intensity
(Transverse Rupture Strength) is in 150~200kg/mm2In the range of ultra-light alloy, be suitable for clinker and
The steel matrix metal processed that steel etc. exists together is drilled.This ultra-light alloy is compared than general tool steel has soft and low
Strength characteristics.
When the apex point (340) is using the tungsten carbide of tool materials is generally used for manufacture, pass through cemented tungsten carbide 80
~90% and the mixed-powder manufacture apex point of cobalt 10~20%, with similar characteristic, therefore it is suitable for drilling steel matrix processed
Metal.
On the other hand, the apex point (340) is manufactured with about 50~300mm or so diameter, so as to the system of drilling
Steel matrix metal so that it is easily pulverized.Preferably, multiple apex points (340) with different-diameter are equipped with so that Ke Yigen
According to the size of steel matrix metal processed, used with reference to the apex point (340) with appropriate diameter.
Moreover it is preferred that the external diameter of the First piston bar (331) at the top of the transmission cylinder (330) is less than the apex point
(340) external diameter.Because, when internal into its when the apex point (340) is drilling steel matrix metal processed, the biography
Send cylinder (330) must together with the apex point (340) enter steel matrix metal inside processed, so as to by steel matrix metal processed drill to
Certain depth.
On the other hand, the rotating driving device (310) and cylinder control unit (320) of unit (300) are bored in the drilling
Running controlled by the control unit (not shown).The control unit only needs to be arranged on staff and can easily operated
Before the place of the control unit, the back plate (220) or workbench (100) of all supporting framework units as described (200) or side.
The control unit is configured to so that staff is when drilling steel matrix metal processed while visually observing drilling
Bore, while directly controlling the drilling to bore unit (300) by mechanically actuated, and be configured to, control includes described bore
All devices including hole drill unit (300), such as, by using various sensor devices, detect steel matrix metal processed by passing
Band is sent to be supplied on workbench (100), and by steel matrix metal processed drilling certain depth, and discharge the base steel processed through drilling
Body metal.
That is, when using disintegrating machine matrix separation metal from steel making stove, it has up to 2m various chis
It is very little.Therefore, clinker must be placed into pulverizer, is separated and is removed for the first time by crushing.It is sufficiently large and be difficult to for size
It is put into for the parent metal in pulverizer, it is preferable that after the size for reducing parent metal by cutting or crushing, be put into powder
In broken machine.But, with regard to for valuable parent metal, being difficult to cut into using common cutting machine containing substantial amounts of metallic iron
Certain size.Therefore, using the cutting machine or drilling machine of the even metallic iron of easily can cutting or drill, by by matrix
Metal Cutting into certain size method, or directly on parent metal body drill after, crushed using disintegrating machine punching
Method reduce the work of parent metal size, wherein, used cutting machine or drilling machine are because with especially
Diamond segment comprising a certain amount of cobalt and easily cut.
In the case where cutting work, parent metal is preferably cut into about 300mm or so size.In drilling and punching
In the case of, it is preferable that in drilling, the eyelet spacing of drilling is about 30~40cm or so, and a diameter of about 200mm of eyelet is left
It is right.By 300mm sizes pretreatment processing parent metal, and clinker is separated for the first time.
2. shredding stage (S200)
Shredding stage is the pulverizer by using such as rod mill, will the size reduction by cutting or drilling and punching
Parent metal to the size suitable for crushing is ground into the stage of certain size.
In shredding stage, parent metal is preferably ground into 0.01~300mm size.In crushing process, only clinker
It can be separated with parent metal.It is preferred that being only separately separated and reclaiming clinker to use.
3. initial grain size separation phase (S300)
In initial grain size separation phase, by Screening Treatment according to the separation point of 0.01~20mm and 20~300mm size
Select parent metal.Here, being separately separated and reclaiming size for 20mm or smaller parent metal.Only size is 20~300mm
Parent metal be sorted after be sent to shot-peening processing refining stage.
4. shot-peening processing refining stage (S400)
Shot-peening processing refining stage is the parent metal that various sizes are removed by using compressed air shotblasting machine (shot machine)
Surface on residual clinker or other contaminated materials come carry out refine parent metal stage.
Refining stage is processed in shot-peening, by the way that such as husky abrasive material is mixed with pressure-air and carries out spraying the abrasive material,
Remove the clinker or foreign matter being attached on metal iron surface and double refining is carried out to parent metal.
Here, the clinker or foreign matter that are attached in base metal surface are mainly ground into 1mm or smaller fritter and divided
From.The remaining parent metal containing a large amount of metallic iron parts has more than 1mm size.
5. secondary particle size separation phase (S500)
Secondary particle size separation phase is high to the metal Ferrum content that the process segment is refined by shot-peening according to various sizes
Parent metal carries out the stage of size sorting.Here, separative selection and separation are with 0.01~1mm and 1~300mm sizes
Parent metal.
In parent metal with 1~300mm sizes contained metal Ferrum content account for parent metal gross weight 90% or
It is higher, therefore parent metal is with almost close to the state presence of the pig iron.The content of this metallic iron is 90 weight % or higher
Parent metal is used for steel and iron manufacturing, the alternative materials as the main pig iron from external import can be recycled, so as to contribute to
The recycling of resource and reduction steel production cost.
On the other hand, granulated iron (luppe), i.e. size are 1mm or smaller parent metal by being collected separately again again
Utilize, or as increase with certain volume object weight than heavy material because granulated iron in itself have compared with
High volume is to weight ratio.
6. non magnetic clinker recovery stage (S600)
Non magnetic clinker recovery stage (S600) is from after the initial grain size separation phase (S300) sorts and separates
Parent metal, only individually reclaim parent metal (have 1mm or smaller size of parent metals be referred to as " granulated iron ") or belong to stove
Slag and with 0.01~20mm sizes non magnetic clinker stage.
More specifically, non magnetic clinker recovery stage includes：The pulverized slag broken stage is reclaimed, from the initial grain size point
From in the parent metal that the stage sorts and separates, parent metal or clinker with 0.01~20mm sizes are crushed；With magnetic force point
The stage is selected, using magnetic grader, from the recovery clinker and recovery parent metal in the recovery broken stage size reduction of pulverized slag,
Only it is separately separated and reclaims the non magnetic clinker with 0.01~20mm sizes.
The pulverized slag broken stage is being reclaimed, ball mill is being preferably used and is crushed.In the magnetic separating stage, preferably by using
Roller with magnet is sorted.
Therefore, size is collected separately for 20mm or smaller non magnetic clinker, and for manufacturing Revetment block, size is 1mm
Or bigger magnetic matrix metal is by screening from size individually to be sorted out in 20mm or smaller magnetic matrix metal, and
Material as steel making raw material or for increasing weight.
Fig. 5 is to represent the metal Ferrum content refined according to the present invention for contained by 90 weight % or higher parent metal
The test report of the measurement result of the content of sulphur and phosphorus.
The metal Ferrum content refined according to the present invention is entrusted in Korean Industrial for 90 weight % or higher parent metal
Institute for Research and Technology, checks whether parent metal may be used as the alternative materials of the pig iron.Parent metal is tested, matrix is checked
The weight % of ingredient in metal.
Method of testing is following content：KS D1804：2003-C、1805：2003-Si、1803：2003-S、1802：
2001-P (1CP) titrates (K2Cr2O7)-Fe.
Generally, in order to which the content that parent metal is used as to sulphur contained in the pig iron, parent metal is necessary for 0.05 weight %
Or it is lower, the content of contained phosphorus is necessary for 0.15 weight % or lower in parent metal.However, according to common common host
The parent metal of method for refining metal can not be directly used as the alternative materials of the pig iron, because parent metal includes 0.1~3.7 weight
% sulphur and 0.7~1 weight % phosphorus are measured, parent metal cannot act as the alternative materials of the pig iron in this degree.Therefore, only exist
After the content that the sulphur being included in parent metal or phosphorus are reduced by extra process, parent metal could be used.
However, it was found from the test result of the test report shown in Fig. 5, the metal Ferrum content refined according to the present invention is 90
Sulphur (S) content of weight % or higher parent metal is 0.027 weight %, and phosphorus (P) content is 0.11 weight %.Fig. 5 shows,
The parent metal of the present invention has passed through a kind of standard, can be sufficiently as can substitute the alternative materials of the pig iron.
Although describing the technological thought of the present invention above in association with accompanying drawing, exemplarily only illustrate that the present invention's is preferred
Embodiment, does not limit the present invention.Obviously, in the range of the technological thought of the present invention is not departed from, those skilled in the art
Various modifications and imitation can be carried out to the present invention.
Claims (5)
1. a kind of method for being refined from parent metal and reclaiming metallic iron, it was included with the next stage：
Parent metal pre-processes the process segment, cuts parent metal by using the cutting machine with diamond segment, or pass through
Parent metal is drilled using the drilling machine for being used for drilling steel matrix metal processed with diamond apex point, and using broken
Parent metal is reduced in size to certain size by parent metal punching by machine, wherein, the diamond apex point has 50
~300mm diameter, and being made up of ultra-light alloy material, the hardness of the ultra-light alloy material for Rockwell A marks hardness 10~
14, cross fracture intensity is 150~200kg/mm2；
Shredding stage, the parent metal by the described matrix metal pretreatment process segment is ground into 0.01~300mm chi
It is very little；
Initial grain size separation phase, will press 0.01~20mm and 20~300mm respectively by the parent metal of the shredding stage
Size sorted and separated；
Shot-peening processes refining stage, is carried out by carrying out bead to the parent metal through the initial grain size separation phase
Refining；And
Secondary particle size separation phase, 0.01~1mm is pressed by the parent metal that refining stage is processed by the shot-peening respectively again
Sorted and separated with 1~300mm size.
2. the method according to claim 1 for being refined from parent metal and reclaiming metallic iron, it is characterised in that described
Initial grain size separation phase and the secondary particle size separation phase, are screened by using screening plant.
3. the method for being refined from parent metal and reclaiming metallic iron according to any one of claim 1 or 2, its feature
It is, after the initial grain size separation phase, in addition to non magnetic clinker recovery stage, it is from being sorted and separate
The stage of the non magnetic clinker with 0.01~20mm sizes is only individually reclaimed in parent metal.
4. the method according to claim 3 for being refined from parent metal and reclaiming metallic iron, it is characterised in that described non-
Magnetic clinker recovery stage, including：
The pulverized slag broken stage is reclaimed, from the parent metal or clinker that the initial grain size separation phase is sorted and is separated, powder
The broken parent metal with 0.01~20mm sizes；
The magnetic separating stage, using magnetic grader, from the recovery parent metal in the recovery broken stage size reduction of pulverized slag or
Reclaim in clinker, be only separately separated and reclaim the non magnetic clinker with 0.01~20mm sizes.
5. the method according to claim 4 for being refined from parent metal and reclaiming metallic iron, it is characterised in that described
The pulverized slag broken stage is reclaimed, is crushed by using ball mill.
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| PCT/KR2014/006277 WO2016006743A1 (en) | 2014-07-11 | 2014-07-11 | Method for refining and recovering metal iron from base metal |
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|---|---|---|---|---|
| KR20020074430A (en) * | 2002-08-02 | 2002-09-30 | 태원건설주식회사 | manufacture method of aggregate using steel slag and device thereof |
| KR100874758B1 (en) * | 2007-02-23 | 2008-12-19 | 이화다이아몬드공업 주식회사 | Cutting tool for cutting tool, manufacturing method of cutting tip and cutting tool |
| KR100900394B1 (en) * | 2007-12-21 | 2009-06-02 | 주식회사 포스코 | Increasing recovery of magnetic metal from stainless steel slag |
| KR101079503B1 (en) * | 2008-11-27 | 2011-11-03 | 주식회사 포스코 | Recovering method for slag which is not magnetically recovered, high specific gravity materials manufactured from the same and manufacturing method for the high specific gravity materials |
| KR101164448B1 (en) * | 2011-12-16 | 2012-07-12 | 김부환 | Purifying process of metal iron from base metal |
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2014
- 2014-07-11 CN CN201480081916.2A patent/CN107075609B/en active Active
- 2014-07-11 WO PCT/KR2014/006277 patent/WO2016006743A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020074430A (en) * | 2002-08-02 | 2002-09-30 | 태원건설주식회사 | manufacture method of aggregate using steel slag and device thereof |
| KR100874758B1 (en) * | 2007-02-23 | 2008-12-19 | 이화다이아몬드공업 주식회사 | Cutting tool for cutting tool, manufacturing method of cutting tip and cutting tool |
| KR100900394B1 (en) * | 2007-12-21 | 2009-06-02 | 주식회사 포스코 | Increasing recovery of magnetic metal from stainless steel slag |
| KR101079503B1 (en) * | 2008-11-27 | 2011-11-03 | 주식회사 포스코 | Recovering method for slag which is not magnetically recovered, high specific gravity materials manufactured from the same and manufacturing method for the high specific gravity materials |
| KR101164448B1 (en) * | 2011-12-16 | 2012-07-12 | 김부환 | Purifying process of metal iron from base metal |
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