CN107075609B - The method for being refined from parent metal and recycling metallic iron - Google Patents
The method for being refined from parent metal and recycling metallic iron Download PDFInfo
- Publication number
- CN107075609B CN107075609B CN201480081916.2A CN201480081916A CN107075609B CN 107075609 B CN107075609 B CN 107075609B CN 201480081916 A CN201480081916 A CN 201480081916A CN 107075609 B CN107075609 B CN 107075609B
- Authority
- CN
- China
- Prior art keywords
- parent metal
- size
- stage
- metal
- metallic iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The method that the present invention relates to a kind of to refine from parent metal and recycle metallic iron, more specifically, it is related to the following method for refining from parent metal and recycling metallic iron, this method comprises: for clinker during iron and metallic iron together existing parent metal, by carrying out the first refining for cutting or drilling with punching parent metal, the diameter that is reduced in size to of described matrix metal is crushed into size for 300mm；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 the content of metallic iron (MT Fe) is 90 weight % or higher when parent metal is having a size of 1~300mm.In the present invention, though 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 total weight, the parent metal that can be used as the alternative materials of the pig iron is thus provided.Therefore it this have the advantage that, while realizing that waste material recycles, promotes all from the import substitution effect of the pig iron of external import, so as to reduce steel making production cost.
Description
Technical field
The method that the present invention relates to a kind of to refine from parent metal and recycle metallic iron, more particularly, to following
The method for being refined from parent metal and recycling metallic iron, this method comprises: for clinker and metallic iron during iron
Existing parent metal together, by carrying out the first refining for cutting or drilling with punching parent metal, by the base
The diameter that is reduced in size to of body metal crushes size for 300mm；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 is having a size of 1~300mm, the content of metallic iron (MT Fe) is
90 weight % or higher.
Background technique
During iron, clinker is inevitable adjoint by-product.Blast-furnace slag is to obtain life from raw material iron ore
It is generated 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 remaining residue 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 removing in the pig iron that blast furnace generates in the oxidizing gas atmosphere of converter (converter)
Carbon, silicon, phosphorus etc. and obtain remaining residue after molten steel.For the clinker generated in the work of the steel and iron manufacturing of converter,
Only 4,000,000 tons or more are just generated 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 the method by such as filling is handled.Furthermore, it is necessary to 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
Furnace clinker contains a large amount of metallic iron (usually the 15~25% of slag amount), it is therefore desirable to metallic iron recovery operation.
Technology for refining, separating and recycling metal ferrous components contained in parent metal includes passing through crane for iron
Ball is promoted to certain altitude, and falls iron ball on the parent metal for being placed in ground, is applied impact to parent metal and is carried out
The method of crushing.Another conventional recovery method includes being come by using the high pressure gas cutting method of LPG gas and oxygen
The method for separating the parent metal not crushed.
However, by falling iron ball to the method for parent metal application physical impact and on parent metal, i.e., it is above-mentioned
Conventional one of metallic iron recovery method has that working environment deteriorates and cause environmental pollution, because when iron ball is to base
When body metal generates impact, a large amount of dust that disperses containing the heavy metal being harmful to the human body can be generated, and there are iron balls must
The problem of must repeatedly falling for several times, due to being that parent metal does not split into certain size, and parent metal itself is hard.This
Outside, the method that parent metal is cut by high pressure gas cutting, i.e., another routine techniques, have a problem in that due to
A large amount of oxygen and LPG are consumed during work and at high cost, included in parent metal and the heavy metal that is harmful to the human body is by oxygen
Change and therefore plurality of heavy metal is discharged into air, heavy metal can cause serious adverse effect to staff, and in work
There is the danger of explosion during work.Additionally, there are the problem of be, the working efficiency of staff is very low, because of high pressure gas
Body cutting is difficult in itself.
To solve the above-mentioned 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 by heat transfer coefficient and clinker using granulated iron contained in clinker
After difference between coefficient is heated, then rapid cooling clinker, so that the non magnetic clinker and the Waste iron slag is interior
Portion is cracked by applying thermal shock, if there is crackle, then can be easy to crush along crackle when crushing,
Therefore it is that circle is difficult to the clinker crushed because size is small by crushing, metallic iron can be recycled, individually to improve matrix gold
The rate of recovery of metal contained in category.However it remains the problem of be, it is difficult to only make to have by the difference of thermal expansion coefficient
Large-sized non magnetic clinker cracks, and is dimensioned for being separately separated and sorting in the parent metal of pulverizer, because
Although being crushed for parent metal due to crackle, the size of the parent metal crushed is not certain.
Summary of the invention
Technical problem
The present invention makes to solve the above-mentioned problems, and it is smart from parent metal that the object of the present invention is to provide one kind
The method of refining and recycling metallic iron, wherein containing a large amount of metallic irons but be difficult to due to large scale through common pulverizing process or
The parent metal that cutting action is crushed is cut directly into certain size using cutting machine, or using punching drilling machine to base
Punching after the drilling of body metal, is reduced in size to maximum gauge for described matrix metal as the size of 300mm；Then, it uses
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 size 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 gold is refined and recycled in a kind of slave parent metal of environment friendly and economical
Parent metal, is reduced to certain size by punching parent metal after directly cutting or drilling, passed through by the method for belonging to iron
Physically screening sub-elects the size of parent metal, and individually refines, separates and recycle the certain size for containing a large amount of metallic irons
Parent metal, by this process crush parent metal when, do not generate the dust that disperses, thus have the feature of environmental protection, and by
In not using a large amount of electric power when cutting or drilling and punching, whole process cost can be reduced, thus economical.
More particularly, the purpose of the present invention is supporting boring work, by for recycling the base of steel matrix metal processed
The body metal pretreatment process segment is applicable in the drilling equipment for steel matrix metal processed to drill by certain depth, so as to easily
Crushing steel matrix metal, and by with the steel matrix metal processed of the various sizes generated in steel making processes correspondingly
Height is adjusted, boring work is effectively performed.
In addition, being used to drill with optimization characteristics by including and constructing the purpose of the present invention is supporting boring work
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 solution
The method according to the present invention for being refined from parent metal and recycling metallic iron, which is characterized in that including following rank
Section: parent metal is reduced to certain by the parent metal pretreatment process segment by cutting or drilling and punching parent metal
Size；Crushing stage will be ground into certain size by the parent metal in described matrix metal pretreatment process segment；For the first time
The particle size separation stage will be sorted and be separated by certain size by the parent metal of the crushing stage；Shot-peening processing
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 will be separated by certain size again by the parent metal of shot-peening processing refining stage
And sorting.
Herein preferably, the process segment is pre-processed in parent metal, is drilled using drilling machine, uses crusher
(breaker) it is punched out.The parent metal pretreatment process segment is such as the next stage: first using specially-made drill bit and drilling machine
After drilling on parent metal body and getting hole, bore portion is punched out using crusher, to will be difficult to be put into powder
The parent metal of the 2m size crushed in broken machine is broken into having a size of 300mm or smaller fritter.
Therefore, it if parent metal only can be worked into 300mm or smaller size by cutting, can only carry out
Cut work.It, can if parent metal can be easily only worked into 300mm or smaller size by drilling and punching
Only to carry out drilling and punch work.
Certainly, as needed, the two processes can also be executed together.
Due to strong hardness metallic iron and clinker be present in parent metal together, do not allowed with common cutting machine
Easily cutting parent metal.
Therefore, it is preferable to use utilizing the specially-made use of diamond segment when the cutting of progress parent metal at this stage
In the cutting machine of cutting parent metal.Moreover it is preferred that having by force when being drilled at this stage if it is to containing a large amount of
The parent metal body of the metallic iron of hardness directly drills, then it is preferable to use specially-made drilling machines to carry out.Hereafter, in punching
When, pressure is applied to bore portion by using crusher and is crushed, so that the gold of large-sized matrix with about 2m
Category can be easily separated and be broken into having a size of 300mm or smaller parent metal.
Here, in crushing stage, the size of pulverized parent metal be 0.01~300mm, it is preferable to use rod mill into
Row crushes.
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, preferably by the size separation and sorting of 0.01~1mm and 1~300mm
Parent metal.In addition, initial grain size separation phase and secondary particle size separation phase can be screened by using screening plant
To execute.
In addition, the method according to the present invention for being refined from parent metal and recycling metallic iron, which is characterized in that described
It further include non magnetic clinker recovery stage after initial grain size separation phase, from the parent metal or furnace for sorting and isolating
The non magnetic clinker with 0.01~20mm size is only individually recycled in slag.Non magnetic clinker recovery stage is for only individually receiving
Collection and recycling can be used as the stage of the non magnetic clinker of the material used when manufacturing Revetment block.
Here, the non magnetic clinker recovery stage, comprising: the recycling pulverized slag broken stage, from the initial grain size point
From the stage be sorted and isolated parent metal or clinker in, crush have 0.01~20mm size parent metal and clinker；
And
The magnetic separating stage, using magnetic grader, from the recycling matrix gold in the recycling broken stage size reduction of pulverized slag
Belong to or recycle in clinker, is only separately separated and recycles the non magnetic clinker with 0.01~20mm size.Here, in the recycling
Clinker crushing stage, is preferably crushed by using ball mill.
The method of refining and recycling according to the present invention, metallic iron contained in the parent metal having a size of 1~300mm
Content accounts for the 90% or higher of parent metal total weight.Therefore, it is possible to use the pig iron of the parent metal as all imports
Alternative materials so as to obtain the import substitution effect of the pig iron, and can reduce the cost of steel making.
In particular, the method for refining according to the present invention and recycling parent metal, the advantage is that, parent metal can fill
The alternative materials for dividing ground to be used as the pig iron, because of the content of sulphur or phosphorus contained in parent metal, that is, so that parent metal is difficult to use
The factor for making the pig iron, is remarkably decreased.
Technical effect
According to the present invention, it will be difficult to through conventional pulverizing process or cutter containing a large amount of metallic irons but due to large scale
The parent metal that sequence crushes 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 total weight.Meanwhile the content of sulphur and phosphorus contained in parent metal reduces.Therefore, advantages of the present invention
It is, can be used as the parent metal of the alternative materials of the pig iron by providing, waste material can be recycled, and pass through promotion
The import substitution effect of the pig iron, can reduce steel making production cost.
In addition, further advantage of the invention is, there is the feature of environmental protection, because not producing in the stage of refining processing parent metal
The raw dust that disperses containing the heavy metal being largely harmful to the human body, and it is economical, due to carrying out reduction parent metal
Many electric power are not used when the manufacturing procedure of size, so as to reduce whole process cost.
In addition, further advantage of the 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 and
Depth can be easy to carry out adjusting, because the drilling equipment for being suitable for the parent metal pretreatment process segment includes dismountable
Apex point.
In addition, further advantage of the invention is, it, can be effectively and economical by using optimization in the apex point of boring work
Existing steel matrix metal processed drills a variety of materials of the ground to such as clinker and steel together.
On the other hand, further advantage of the invention is, due to can for example recycle various effective materials of recycling
Steel is put into again in steel making process, therefore can reduce steel making production cost, and can both have been shortened and crushed for passing through
The time for the process consumption that steel matrix metal processed is recycled, and the energy of consumption can be reduced, thus highly effective and warp
Ji.
Detailed description of the invention
Fig. 1 is the whole process for indicating the method according to the present invention for refining from parent metal and recycling metallic iron
Figure.
Fig. 2 is the parent metal pretreatment for refining and recycling the method for metallic iron from parent metal according to the present invention
The front elevation for the drilling equipment for the steel matrix metal processed that drills that process segment uses.
Fig. 3 is the parent metal pretreatment for refining and recycling the method for metallic iron from parent metal according to the present invention
The side view for the drilling equipment for the steel matrix metal processed that drills that process segment uses.
Fig. 4 is the sectional view of the transmission cylinder of Fig. 2.
Fig. 5 is that the metal Ferrum content for indicating to refine according to the present invention is contained in 90 weight % or higher parent metal
The test report of the measurement result of the content of sulphur and phosphorus.
Specific embodiment
1 to attached drawing 5 with reference to the accompanying drawings, and the embodiment of the present invention will be described in detail.
Fig. 1 is the figure for indicating the whole process of the method for the invention for refining from parent metal and recycling metallic iron.
1. parent metal pre-processes process segment (S100)
Parent metal pretreatment the process segment be by using with diamond segment special cutting machine or drilling machine and
Crusher reduces the size of clinker and metallic iron existing parent metal together, and parent metal pretreatment is processed into suitable for powder
The stage of broken size.
Here, the drilling equipment for the steel matrix metal processed that drills of cutting machine or one of drilling machine for using will
It is described in detail referring to Figure 2 to Figure 4.
Fig. 2 is the front elevation of the drilling equipment according to an embodiment of the present invention for the steel matrix metal processed that drills, and Fig. 3 is root
According to the side view of the drilling equipment for the steel matrix metal processed that drills of the embodiment of the present invention.
Referring to Fig. 2 and Fig. 3, the drilling equipment according to an embodiment of the present invention for the steel matrix metal processed that drills includes: work
Make platform (100), steel matrix metal processed is placed on above it；Supporting framework unit (200) is arranged to from the workbench
(100) it upwardly extends and there is certain altitude；Unit (300) are bored in one or more drilling, are connected to the support frame
Top plate (210) bottom of unit (200)；And control unit, control the running that unit (300) are bored in the drilling.
Here, the workbench (100) is constituted with the flat form with certain altitude.Also, such as conveyer belt from
Dynamic transmission device is arranged on the table, to execute continuous automatic process.Therefore, steel matrix metal processed can continuously be supplied
It is given to workbench, is used for subsequent processing to be transmitted after completing boring work.
The basic of drilling equipment is formed together with workbench (100) in addition, being formed on the top of the workbench (100)
The supporting framework unit (200) of main structure.In view of the size for the steel matrix metal processed being supplied to, by the braced frame list
Member 200 is arranged to keep certain height.
The supporting framework unit (200) is substantially made of the board-like material with some strength, such as iron steel plate.
It opens before the supporting framework unit 200 in order to work, and is closed below by back plate (220), and two sides can also be set
Count into it is open, in order to the supply or discharge of steel matrix metal processed.
If the two sides of the supporting framework unit (200) are open, unit (300) are bored in view of the drilling and are connected to
The case where top plate (210) bottom of the supporting framework unit (200), as in this embodiment, left side and front are right in front
Side is respectively formed the pillar (230) for being used to support top plate (210), 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 front in
Between several places setting pillar (230), to increase safety.
On the other hand, the drilling is bored unit (300) and is configured to, including the rotation driving dress being driven by electricity by supply
(310) are set, the cylinder control unit (320) in the drive shaft of the rotation drive device (310) and being installed on it is connected to, sets
Set transmission cylinder (330) below the cylinder control unit (320) and from the dismountable apex point of the transmission cylinder (330)
(340)。
Here, apex point (340) is preferably diamond apex point, but not limited to this.
The rotation drive device (310) is usually the common motor by being driven by electricity, and firmly fixes setting
In top plate (210) bottom of the supporting framework unit (200).In particular, providing the rotation drive device with enough torques
(310), because it is other than rotation drives the apex point (340), it is also necessary to the rotation drive 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
The controllable variable motor drive mechanism of rotation speed can be used at allowing to the ruler according to steel matrix metal processed in dynamic device 310
Very little or status adjustment torque.
The cylinder control unit (320) is the flexible device for controlling transmission cylinder (330).The cylinder control
Device 320 processed is by transmitting cylinder according to the size Control for the steel matrix metal processed being fed on the workbench (100)
(330) to adjust the initial working heights of the apex point (340), and make institute by slowly stretching the transmission cylinder (330)
Apex point (340) decline is stated, so that carrying out the drilling of certain depth to steel matrix metal processed.
The cylinder control unit (320) has different compositions according to the type of transmission cylinder (330).If described
Transmitting cylinder (330) is hydraulic or vapour-pressure type, then its can equipped with for by adjusting 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, can match
It has for the movement by the device for adjusting such as motor or screw rod and controls the flexible device of transmission cylinder (330).
Fig. 4 indicates the sectional view of fluid pressure type or vapour-pressure type transmission cylinder.
Referring to Fig. 4, transmission cylinder according to an embodiment of the present invention, which is fixed to cylinder control unit (320) and is configured to, includes
First piston bar (331) with maximum outside diameter, the second piston bar slided up and down in the First piston bar (331)
(332) and in the second piston bar (332) the third piston rod (333) slided up and down.
The first oil pipe for making hydraulic oil or compressed air inflow and outflow is connected at the top of the First piston bar (331)
(31).The lower part of 331 side of First piston bar, 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 outer diameter.Also, it is formed with sealing element (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 in the upper end center sections of the second piston bar (332)
Enter hole (35).The sealing element (34) of the 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 third piston rod (333)
The corresponding opening port of outer diameter, and similarly, it is formed with sealing element inwardly projectingly in the bottom of the second piston bar 332
(34), so that hydraulic oil or compressed air are not discharged to the outside.In particular, in the cylinder body for forming second piston bar (332) side
In be formed at least two inner flow passages (33), the inner flow passage 33 is by connecting second piston inside second piston bar (332)
Bar (332) outside top and its inside bottom.
The stream for making hydraulic oil or compressed air inflow and outflow is formed in the top center portion of the third piston rod (333)
Enter hole (35).The sealing element (34) of the internal diameter of the second piston bar (332) is closely attached in the third piston rod 333
Top outer in be protrudedly formed.The bottom of the third piston rod 333 is closed, and engaging portion (334) (do not show in Fig. 4
It is connected to third piston rod (333) bottom out), so that the apex point (340) can be integrated to engaging 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 sealing element (34) at the top of sealing (34) and second piston bar (332), along the interior of second piston bar (332)
Portion's runner (33) flowing, then it is flowed into the sealing element (34) of the bottom of second piston bar (332) and the top of third piston rod (333)
Space between the sealing element (34) in portion.
The movement of transmission cylinder (330) formed as described above is briefly described below.
Firstly, the stretching to 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 is transmitted to the bottom of the third piston rod (333), so that the
Three piston rods (333) decline, and the second piston bar (332) declines also by pressure.At this point, it is living to be present in the third
Between the sealing element (34) of the bottom of the sealing element (34) and second piston bar (332) at the top of stopper rod (333), it is described second living
In the inner flow passage (33) of stopper rod (332) and the sealing element (34) and described first at the top of the second piston bar (332)
Hydraulic oil or compressed air between the sealing element (34) of the bottom of piston rod (331) are discharged by second oil pipe (32)
The cylinder control unit (320).
Then, the contractive action of 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), pressure is transmitted to the sealing element at the top of the third piston rod (333)
(34), so that the third piston rod (333) rises.In addition, pressure is transmitted to the close of the top of the second piston bar (332)
Sealing (34), so that the second piston bar (332) also rises.At this point, being present in hydraulic oil or the compression of each piston rod inner
Air is discharged into the cylinder control unit (320) by inflow hole (35) and the first oil pipe (31).
On the other hand, the transmission cylinder (330) is configured to, when the transmission cylinder is shunk, minimum length 50
~70cm or so, when transmission cylinder stretching, extension, maximum length is 150~200cm or so.Its reason is to consider drilling dress
The size of the steel matrix metal processed of the size and supply set.
That is, the size of machinable steel matrix metal processed can not be kept away if minimum of contraction length is greater than 70cm
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.
In addition, if maximum extension length is less than 150cm, then 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 greater than 200cm, due to transmission cylinder (330)
Loading and size excessively increase, then may apply to rotation drive device (310) and overload.In general, the steel matrix metal processed of supply
Size be no more than 200cm, therefore transmit cylinder 330 do not need to be formed to have the length greater than 200cm.
As described above, being formed with engaging portion in the bottom of the third piston rod (333) of the bottom of transmission cylinder (330)
(334).The apex point (340) of actual borehole steel matrix metal is integrated to the engaging portion (334).
The common ultra-light alloy for tool can be used to manufacture in the apex point (340), it is preferable that using having
The ultra-light alloy of the characteristic different from general tool steel manufactures, so as to the steel matrix metal processed that more effectively drills.
That is, the use of there is hardness (Hardness) being that Rockwell A marks hardness (HRA) 10~14, cross fracture intensity
(Transverse Rupture Strength) is in 150~200kg/mm2Ultra-light alloy in range, be suitable for clinker and
Existing steel matrix metal processed drills steel etc. together.This ultra-light alloy is compared than general tool steel with soft and low
Strength characteristics.
When the apex point (340) is using the tungsten carbide of tool materials is commonly used in manufacture, pass through cemented tungsten carbide 80
~90% and the mixed-powder of cobalt 10~20% manufacture apex point, there is similar characteristic, therefore suitable for the steel matrix processed of drilling
Metal.
On the other hand, the apex point (340) is manufactured with the diameter of about 50~300mm or so, so as to the system of drilling
Steel matrix metal, so that it is easy to be crushed.Preferably, multiple apex points (340) with different-diameter are equipped with, root is allowed to
According to the size of steel matrix metal processed, used in conjunction with the apex point (340) with appropriate diameter.
Moreover it is preferred that the outer diameter of the First piston bar (331) at the top of transmission cylinder (330) is less than the apex point
(340) outer diameter.This is because when the apex point (340) is internal into its when drilling steel matrix metal processed, the biography
Send cylinder (330) must with the apex point (340) together enter steel matrix metal inside processed, so as to will steel matrix metal processed drill to
Certain depth.
On the other hand, the rotation drive 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 can be easy to operate in staff
The place of the control unit, before the back plate (220) or workbench (100) of such as described supporting framework unit (200) or side.
The control unit is configured to, so that staff visually observes drilling in drilling steel matrix metal on one side
It bores, the drilling is directly controlled by mechanically actuated on one side and bores unit (300), and is configured to, control includes the brill
All devices including hole drill unit (300), such as by using various sensor devices, detect steel matrix metal processed and pass through biography
It send band to be supplied on workbench (100), and steel matrix metal processed is drilled certain depth, and the base steel processed through drilling is discharged
Body metal.
That is, there are the various rulers of up to 2m when using crusher matrix separation metal from steel making furnace
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 for size and be difficult to
It is put into for the parent metal in pulverizer, it is preferable that after the size for reducing parent metal by cutting or being crushed, be put into powder
In broken machine.But with regard to being difficult to be cut into using common cutting machine containing a large amount of metallic iron and for valuable parent metal
Certain size.Therefore, using the cutting machine or drilling machine of the even metallic iron of easily capable of cutting or drill, by by matrix
Metal Cutting at certain size method, or directly on parent metal body drill after, be crushed using crusher punching
Method reduce the work of parent metal size, wherein used cutting machine or drilling machine are because having particularly
Diamond segment comprising a certain amount of cobalt and be easy to carry out cutting.
In the case where cutting work, parent metal is preferably cut into the size of about 300mm or so.In drilling and punching
In the case where, it is preferable that in drilling, the eyelet spacing of drilling is about 30~40cm or so, and the diameter of eyelet is the left side about 200mm
It is right.Processing parent metal is pre-processed by 300mm size, and separates clinker for the first time.
2. crushing stage (S200)
Crushing stage size will be reduced and cutting or drilling with punching by using the pulverizer of such as rod mill
The stage of certain size is ground into the parent metal for the size for being suitable for crushing.
In crushing stage, parent metal is preferably ground into the size of 0.01~300mm.In crushing process, only clinker
It can be separated with parent metal.It is preferred that be only separately separated and recycle clinker come using.
3. initial grain size separation phase (S300)
In initial grain size separation phase, by Screening Treatment according to the separation point of the size of 0.01~20mm and 20~300mm
Select parent metal.Here, being separately separated and recycling having a size of 20mm or smaller parent metal.Only having a size of 20~300mm
Parent metal be sorted after be transmitted to shot-peening processing refining stage.
4. shot-peening processes refining stage (S400)
Shot-peening processing refining stage is the parent metal by using compressed air shotblasting machine (shot machine) removal various sizes
Surface on residual clinker or other contaminated materials come carry out refining 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,
It removes the clinker being attached on metal iron surface or foreign matter carries out double refining 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 divide
From.The remaining parent metal containing a large amount of metallic iron parts has the size of 1mm or more.
5. secondary particle size separation phase (S500)
Secondary particle size separation phase is high to the metal Ferrum content by the shot-peening refining process segment according to various sizes
The stage of parent metal progress size sorting.Here, separative selection and separation have 0.01~1mm and 1~300mm size
Parent metal.
Metal Ferrum content contained in parent metal with 1~300mm size account for parent metal total weight 90% or
It is higher, therefore parent metal close to the state of the pig iron almost to exist.The content of this metallic iron is 90 weight % or higher
Parent metal is used for steel and iron manufacturing, can recycle and be used as mainly from the alternative materials of the pig iron of external import, to facilitate
The recycling of resource and reduction steel production cost.
On the other hand, granulated iron (luppe), i.e., having a size of 1mm or smaller parent metal by being collected separately again again
Utilize, or as increase have certain volume object weight ratio heavy material, this is because granulated iron 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 recycling parent metal (there is 1mm or smaller size of parent metal to be known as " granulated iron ") or belong to furnace
The stage of slag and the non magnetic clinker with 0.01~20mm size.
More specifically, non magnetic clinker recovery stage includes: the recycling pulverized slag broken stage, from the initial grain size point
From in stage sorting and isolated parent metal, the parent metal or clinker with 0.01~20mm size are crushed；With magnetic force point
The stage is selected, using magnetic grader, from the recycling clinker and recycling parent metal in the recycling broken stage size reduction of pulverized slag,
Only it is separately separated and recycles the non magnetic clinker with 0.01~20mm size.
In the recycling pulverized slag broken stage, it is preferable to use ball mill is crushed.In the magnetic separating stage, preferably by using
Roller with magnet is sorted.
Therefore, it is collected separately having a size of the non magnetic clinker of 20mm or smaller, and for manufacturing Revetment block, having a size of 1mm
Or bigger magnetic matrix metal is individually sorted out from having a size of 20mm or smaller magnetic matrix metal by screening, and
Material as steel making raw material or for increasing weight.
Fig. 5 is that the metal Ferrum content for indicating to refine according to the present invention is contained in 90 weight % or higher parent metal
The test report of the measurement result of the content of sulphur and phosphorus.
By the metal Ferrum content refined according to the present invention be 90 weight % or the commission of higher parent metal is in Korean Industrial
Institute for Research and Technology, checks whether parent metal may be used as the alternative materials of the pig iron.Parent metal is tested, checks matrix
The weight % of ingredient in metal.
Test method is following content: KS D1804:2003-C, 1805:2003-Si, 1803:2003-S, 1802:
2001-P (1CP) titrates (K2Cr2O7)-Fe.
In general, in order to which parent metal is used as the pig iron, the content of sulphur contained in parent metal is necessary for 0.05 weight %
Or it is lower, the content of phosphorus contained in parent metal is necessary for 0.15 weight % or lower.However, according to common common host
The parent metal of method for refining metal cannot be directly used as the alternative materials of the pig iron, because parent metal includes 0.1~3.7 weight
The sulphur of % and the phosphorus of 0.7~1 weight % are measured, parent metal cannot act as the alternative materials of the pig iron in this degree.Therefore, only exist
After reducing the content comprising sulphur or phosphorus in parent metal by additional process, parent metal could be used.
However, from the test result of test report shown in fig. 5 it is found that 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
Parent metal of the invention has passed through a kind of standard, can be sufficiently as the alternative materials that can substitute the pig iron.
Although describing technical idea of the invention above in association with attached drawing, exemplarily only illustrate of the invention preferred
Embodiment does not limit the present invention.Obviously, without departing from the scope of the invention, 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 recycling metallic iron comprising with the next stage:
Parent metal pre-processes the process segment, by using the drilling for the steel matrix metal processed that drills with diamond apex point
Machine drills to parent metal, and using crusher by parent metal punching, by being reduced in size to centainly for parent metal
Size, wherein the diamond apex point has the diameter of 50~300mm, and is made of ultra-light alloy material, described ultralight
The hardness of alloy material is that Rockwell A marks hardness 10~14, and cross fracture intensity is 150~200kg/mm2；
Crushing stage will be ground into the ruler of 0.01~300mm by the parent metal in described matrix metal pretreatment process segment
It is very little；
Initial grain size separation phase will press respectively 0.01~20mm and 20~300mm by the parent metal of the crushing 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 will press respectively 0.01~1mm by the parent metal of shot-peening processing refining stage again
It is sorted and is separated with the size of 1~300mm,
It include wherein the transmission cylinder for declining diamond apex point, and control transmission cylinder for the drilling machine for the steel matrix metal processed that drills
Flexible cylinder control unit,
Transmission cylinder includes the First piston bar for being fixed to cylinder control unit, the second piston slided up and down in First piston bar
Bar and the third piston rod slided up and down in second piston bar；First oil pipe is connected to the top of First piston bar；Second oil
Pipe is connected to the lower part of First piston bar side；And sealing element is located at the bottom surface of First piston bar,
Wherein the parent metal pretreatment process segment includes the stage for declining diamond apex point by control transmission cylinder,
By control transmission cylinder make diamond apex point decline stage include: wherein hydraulic oil or compressed air via the first oil pipe
First piston bar is flowed by cylinder control unit, thus the step of transferring the pressure to the bottom of third piston rod；Wherein
The step of three piston rods decline and then second piston bar is declined by pressure.
2. the method according to claim 1 for being refined from parent metal and recycling metallic iron, which is characterized in that described
Initial grain size separation phase and the secondary particle size separation phase, are screened by using screening plant.
3. the method according to any one of claim 1 or 2 for being refined from parent metal and recycling metallic iron, feature
It is, further includes non magnetic clinker recovery stage after the initial grain size separation phase, is from being sorted and separate
The stage with the non magnetic clinker of 0.01~20mm size is only individually recycled in parent metal.
4. the method according to claim 3 for being refined from parent metal and recycling metallic iron, which is characterized in that described non-
Magnetic clinker recovery stage, comprising:
The pulverized slag broken stage is recycled, from initial grain size separation phase sorting and isolated parent metal or clinker, powder
The broken parent metal with 0.01~20mm size；
The magnetic separating stage, using magnetic grader, from the recycling broken stage size reduction of pulverized slag recycling parent metal or
It recycles in clinker, is only separately separated and recycles the non magnetic clinker with 0.01~20mm size.
5. the method according to claim 4 for being refined from parent metal and recycling metallic iron, which is characterized in that described
The pulverized slag broken stage is recycled, is crushed by using ball mill.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2014/006277 WO2016006743A1 (en) | 2014-07-11 | 2014-07-11 | Method for refining and recovering metal iron from base metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107075609A CN107075609A (en) | 2017-08-18 |
| CN107075609B true CN107075609B (en) | 2019-06-25 |
Family
ID=55064364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480081916.2A Active CN107075609B (en) | 2014-07-11 | 2014-07-11 | The method for being refined from parent metal and recycling metallic iron |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107075609B (en) |
| WO (1) | WO2016006743A1 (en) |
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 |
-
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016006743A1 (en) | 2016-01-14 |
| CN107075609A (en) | 2017-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gill | Materials beneficiation | |
| CN109569837B (en) | Crushing and grinding process for treating nickel-copper sulfide ore | |
| CN109351447B (en) | Lean magnetite's ore dressing production system | |
| CN112347689A (en) | Discrete element method-based semi-autogenous mill lining plate shape optimization method | |
| CN102839240A (en) | Comprehensive processing utilization production technology of steel slag | |
| CN205462650U (en) | Electromechanical liquid removes crushing equipment based on eccentric sleeve mechanism | |
| CN107075609B (en) | The method for being refined from parent metal and recycling metallic iron | |
| CN202823492U (en) | Novel coal mine stone crushing machine | |
| Balasubramanian | Size reduction by crushing method | |
| Guresin et al. | Importance of effective sampling and test work protocols for process plant design | |
| Drozdiak | A pilot-scale examination of a novel high pressure grinding roll/stirred mill comminution circuit for hard-rock mining applications | |
| Burford et al. | IsaMill technology used in efficient grinding circuits | |
| Von Michaelis | How energy efficient is HPGR | |
| Powell et al. | Full pre-crush to SAG mills-the case for changing this practice | |
| Loveday et al. | Optimisation of autogenous grinding | |
| KR101188145B1 (en) | Drill apparatus for boring skull of molten-steel | |
| Norman et al. | Abrasive wear of ferrous materials in climax operations | |
| CN205868366U (en) | Ore crushing facility in metallurgical mine in underground | |
| Hesham et al. | Redesign and manufacture an impact crusher hammer mill using advanced iron casting | |
| CN205613527U (en) | Be applied to broken break bar on breaker | |
| Balasubramanian | Size Reduction by grinding methods | |
| CN101327463A (en) | Method for reducing magnesium content and improving effect in ore dressing of nickel purite mine | |
| KR101164448B1 (en) | Purifying process of metal iron from base metal | |
| Siddall et al. | Process design and implementation techniques for secondary crushing to increase milling capacity | |
| Drzymła | Research into the briquetting process for improved design of briquetting machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |