CN108855585A - A method of separation diamond matrix - Google Patents
A method of separation diamond matrix Download PDFInfo
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- CN108855585A CN108855585A CN201810749808.8A CN201810749808A CN108855585A CN 108855585 A CN108855585 A CN 108855585A CN 201810749808 A CN201810749808 A CN 201810749808A CN 108855585 A CN108855585 A CN 108855585A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Abstract
The present invention relates to a kind of methods for separating diamond matrix, specifically comprise the following steps：(1) it is crushed the mixed raw material containing diamond, graphite, iron-cobalt-nickel catalyst to obtain broken mixture；(2) broken mixture is subjected to ultrasonic wave decentralized processing, obtains ultrasonic wave dispersed mixture；(3) by ultrasonic wave dispersed mixture, magnetic separation is carried out, iron-cobalt-nickel catalyst product is removed, obtains diamond and graphite mixture；(4) by diamond and graphite mixture, ultrasonic wave decentralized processing, the diamond and graphite mixture dispersed are carried out.(5) diamond of dispersion and graphite mixture are subjected to classification separation, separate graphite with diamond.Compared with traditional diamond matrix separation method, the method clean and environmental protection of separation diamond matrix of the invention does not use chemical reagent in separation process, not will cause environmental pollution, discharges without " three wastes ".Diamond, graphite and catalyst are separated respectively, and degree of purity is high；Graphite and catalyst substance can be recycled again；Diamond extraction efficiency is high, good in economic efficiency.
Description
Technical field
The invention belongs to the separating-purifying fields of diamond matrix, and in particular to a kind of side for separating diamond matrix
Diamond matrix is dispersed beading, then diamond, graphite, iron-cobalt-nickel catalyst product is mutually separated by method.
Background technique
Diamond is commonly called as " spark ", is the allotrope of carbon, it is naturally occurring most hard in nature
Substance.Graphite is also carbonaceous element crystalline mineral, its crystallization screen work is hexagon layer structure.Diamond and graphite are
The mineral of carbon composition, the physics and chemical property of simple substance carbon depend on its crystal structure.The diamond of high rigidity and soft
Smooth greasy crystal structure of graphite is different, and the appearance, density, fusing point and purposes of the two are all different.The purposes of diamond is non-
It is often extensive, such as：Geology and oil bit, wire-drawing die, superabrasive, finishing cutting utensil, glass cutter, craftwork gold
Hard rock etc..Also very extensive gold, graphite and its product both can be used as conductive, wear-resisting, lubrication, refractory material to the purposes of graphite,
It can be used for atomic energy and national defense industry, such as：The heat-barrier material of aerospace components and anti-ray material, the atomic pile in nuclear energy
In decelerating material.
Diamond is widely used, but very rare in nature, so expensive；But graphite (carbon) in nature
Reserve is very abundant.Then, using artificial synthesis diamond is made in graphite by people, and graphite is in (5~6) × 103MPa
Under atmospheric pressure and 1000 to 2000 DEG C of high temperature, by the catalysis of the catalyst such as metallic iron, cobalt, nickel (i.e. catalyst), it is produced out
At diamond dust.
Not only contain graphite in the diamond dust synthesized by above-mentioned artificial synthesis, is also urged containing iron, cobalt, nickel etc.
Agent will obtain the high diamond of degree of purity, it is necessary to first separate graphite therein and iron, cobalt, nickel accelerant.Traditional gold
The extracting method of hard rock removes graphite and catalyst using chloroazotic acid or other chemical reagent are logical, or uses and be passed through carbon monoxide
The problem of reaction removes metal solvent, these methods use chemical reagent, will cause environmental pollution.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of methods for separating diamond matrix.The present invention point
Method clean and environmental protection from diamond, graphite, catalyst does not use chemical reagent in separation process, not will cause environmental pollution, nothing
" three wastes " discharge.Diamond, graphite and catalyst are separated respectively, and degree of purity is high；Graphite and catalyst substance can be recycled again
It utilizes；Diamond extraction efficiency is high, good in economic efficiency.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of method separating diamond matrix is provided, is included the following steps：
(1) it is crushed the mixed raw material containing diamond, graphite, iron-cobalt-nickel catalyst to obtain broken mixture；
(2) the broken mixture is subjected to ultrasonic wave decentralized processing, obtains ultrasonic wave dispersed mixture；
(3) by the ultrasonic wave dispersed mixture, carry out magnetic separation, remove iron-cobalt-nickel catalyst product, obtain diamond and
Graphite mixture；
(4) by the diamond and graphite mixture, ultrasonic wave decentralized processing, the diamond and stone dispersed are carried out
Black mixture.
(5) diamond of the dispersion and graphite mixture are subjected to classification separation, separate graphite with diamond.
Preferably, the concrete operations of the step (1) are：By the mixed raw material containing diamond, graphite, iron-cobalt-nickel catalyst
It successively carries out shearing composite breaking and grinds, obtain broken mixture.
Preferably, in the step (1), by granularity-in shearing composite breaking and the broken mixture ground
The material content of 0.074mm is more than or equal to 70%.
Preferably, the attrition process carries out in sample grinding machine.
Preferably, it joined solid dielectric in the sample grinding machine, the solid dielectric selects the small medium of bat and wood
Big medium.
Preferably, the mass ratio of the small medium of the bat and the big medium of wood is 1:3~3:1.
Preferably, liquid medium is added in the sample grinding machine.
Preferably, the liquid medium selects one or both of aqueous medium, alcoholic media.
Preferably, in the step (1), the mixed raw material containing diamond, graphite, iron-cobalt-nickel catalyst shear again
It closes and is crushed, obtain the material that granularity is less than 3.0mm.
Preferably, the magnetic separation of the step (3) is low intensity magnetic separation and high intensity magnetic separation, and the ultrasonic wave dispersed mixture successively carries out
Low intensity magnetic separation and high intensity magnetic separation remove iron-cobalt-nickel catalyst product.
Preferably, the magnetic field strength of the low intensity magnetic separation is 60mT~250mT；It is furthermore preferred that the magnetic of the low intensity magnetic separation
Field intensity is 100mT.
Preferably, the magnetic field strength of the high intensity magnetic separation is 600mT~1450mT；It is furthermore preferred that the high intensity magnetic separation
Magnetic field strength is 800mT.
Preferably, in the step (5), the diamond of dispersion and graphite mixture are added in classification case and shaking table,
Classification separation is carried out, separates graphite with diamond, respectively obtains graphite pure substance and diamond pure substance.
Preferably, in the step (5), the diamond of dispersion and graphite mixture are classified case, the first order by level-one
Shaking table, second level classification case, second level shaking table, three-level classification case and third level shaking table, carry out classification separation, make different grain size
Graphite and diamond separation.
Preferably, the concrete operations of the step (5) are：The diamond of dispersion and graphite mixture are charged first to level-one
It is separated in classification case, the sand setting that level-one is classified in case is added to first order shaking table and is sorted, corresponding partial size is obtained
Graphite pure substance and/or diamond pure substance；The mixture overflow that level-one is classified in case is added in second level classification case and is carried out
The sand setting that second level is classified in case is added to second level shaking table and sorted by separation, obtain corresponding partial size graphite pure substance and/
Or diamond pure substance；The mixture overflow that second level is classified in case is added in three-level classification case and is separated, by three fractions
Sand setting in grade case is added to third level shaking table and is sorted, and graphite pure substance and/or the diamond for obtaining corresponding partial size are pure
Object.
Preferably, the volume of the level-one classification case is set as 20~30L；The volume of the second level classification case is set
For 70~100L；The volume of the three-level classification case is set as 200~300L.
Preferably, the design parameter that the first order shaking table is arranged is：Shaking table inclination angle is 3.5~4.5 degree, and sorting stroke is
5~6mm, sorting jig frequency are 450~500 times/min；The design parameter that the second level shaking table is arranged is：Shaking table inclination angle is 3.0
~4.0 degree, sorting stroke is 6~7mm, and sorting jig frequency is 500~550 times/min；The specific ginseng of the third level shaking table is set
Number is：Shaking table inclination angle is 2.5~3.5 degree, sorts 7~8mm of stroke, sorts 550~600 times/min of jig frequency.
Preferably, in the step (2), mixture is crushed by the cycle-index of decentralized processing and is more than or equal to 5.
Preferably, in the step (2), being crushed mixture by the cycle-index of decentralized processing is 6 times, 9 times, 11 times or 15
It is secondary.
Preferably, in the step (4), diamond and graphite mixture are more than or equal to 5 by the cycle-index of decentralized processing.
Preferably, in the step (4), diamond and graphite mixture by the cycle-index of decentralized processing be 6 times, 9 times,
11 times or 15 times.
The method of separation diamond matrix in the present invention is the postprocessing working procedures of artificially synthesizing diamond, is a kind of high
The clean preparation method of effect separation diamond, graphite and catalyst, this method use physical separation method, no chemical agent, without dirt
Dye, the problem of avoiding using chemical reagent and easily cause environmental pollution.Moreover, all resources of the method for the present invention are available
It efficiently utilizes, is discharged without " three wastes ", be conducive to develop a circular economy, protect environment.Graphite, iron catalyst, cobalt nickel accelerant are distinguished
Separation, and purity is high, can be recycled and recycle；Diamond extraction efficiency is high, and degree of purity is high, good in economic efficiency.
Detailed description of the invention
Fig. 1 is a kind of process flow diagram of the method for separation diamond matrix of the invention.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described, it is clear that described embodiment is a part of the embodiments of the present invention, without
It is whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.It should be noted that the embodiment is only
It is to aid in the understanding present invention, should not be regarded as a specific limitation of the invention, in the absence of conflict, the embodiment in the application
And the feature in embodiment can mutual any combination.
The present invention provides a kind of methods for separating diamond matrix, as shown in Figure 1：Include the following steps：
(1) it is crushed the mixed raw material containing diamond, graphite, iron-cobalt-nickel catalyst to obtain broken mixture；
(2) the broken mixture is subjected to ultrasonic wave decentralized processing, obtains ultrasonic wave dispersed mixture；
(3) by the ultrasonic wave dispersed mixture, carry out magnetic separation, remove iron-cobalt-nickel catalyst product, obtain diamond and
Graphite mixture；
(4) by the diamond and graphite mixture, ultrasonic wave decentralized processing, the diamond and stone dispersed are carried out
Black mixture.
(5) diamond of the dispersion and graphite mixture are subjected to classification separation, separate graphite with diamond.
Into the ultrasonic wave decentralized processing for crossing step (2), the diamond matrix of cluster is dispersed, after being conducive to progress
Lock out operation；By the magnetic separation of step (3), magnetic iron-cobalt-nickel catalyst product is mixed with not having magnetic diamond and graphite
Close object；By the ultrasonic wave decentralized processing of step (4), the diamond of cluster and graphite mixture can be made further to be dispersed,
Be conducive to the lock out operation of next step；
Wherein, the concrete operations of the step (1) are：By containing diamond, graphite, iron-cobalt-nickel catalyst mixed raw material according to
It is secondary to carry out shearing composite breaking and grind, obtain broken mixture.
Be greater than by the material content of granularity -0.074mm in shearing composite breaking and the broken mixture ground etc.
In 70%.
The present invention uses unconventional broken and grinds method, using shearing composite breaking and grinds the method combined,
Be conducive to control the particle size after cracking of mixture, and can prevent brittle diamond or the graphite of sheet from being crossed and crush, guarantee fund
The pattern of hard rock and graphite.
In order to further control the grinding particle size of mixture and prevent diamond or graphite by cross crushed, in sample grinding machine into
Row attrition process.It joined solid dielectric in sample grinding machine, solid dielectric selects the small medium of bat and the big medium of wood.Bat Xiao Jie
The mass ratio of matter and the big medium of wood is 1:3~3:1.
Liquid medium is additionally added in sample grinding machine.Liquid medium selects one or both of aqueous medium, alcoholic media.
The mixed raw material containing diamond, graphite, iron-cobalt-nickel catalyst is subjected to shearing composite breaking in step (1), is obtained
Granularity is less than the material of 3.0mm.
The magnetic separation of the step (3) is low intensity magnetic separation and high intensity magnetic separation, and the ultrasonic wave dispersed mixture successively carries out low intensity magnetic separation
And high intensity magnetic separation, remove iron-cobalt-nickel catalyst product.
Wherein, the magnetic field strength of low intensity magnetic separation is 60mT~250mT；The magnetic field strength of high intensity magnetic separation is 600mT~1450mT.
The step (3) carries out magnetic separation using magnetic separator, and iron-cobalt-nickel catalyst belongs to magnetisable material, and powder, which passes through, has magnetic
It is adsorbed when the magnetic separator of field intensity, and diamond and graphite do not have magnetism, magnetic separator can be passed through, to make mixture
In iron-cobalt-nickel catalyst be separated.And iron, cobalt, nickel can successively the magnetic separator Jing Guo different magnetic field intensity and separated,
Magnetic field strength is the adsorbable iron catalyst of low-intensity magnetic field of 60mT~250mT, and iron catalyst is separated；It is 600mT using magnetic field strength
The high-intensity magnetic field of~1450mT can separate cobalt nickel accelerant.
In the step (5), the diamond of dispersion and graphite mixture are added in classification case and shaking table, are classified
Separation, separates graphite with diamond, respectively obtains graphite pure substance and diamond pure substance.
In the step (5), the diamond of dispersion and graphite mixture are classified case, first order shaking table, two by level-one
Grade classification case, second level shaking table, three-level classification case and third level shaking table, carry out classification separation, make varigrained graphite and
Diamond separation.
Wherein, the concrete operations of the step (5) are：The diamond of dispersion and graphite mixture are charged first to a fraction
It is separated in grade case, the sand setting that level-one is classified in case is added to first order shaking table and is sorted, the stone of corresponding partial size is obtained
Black pure substance and/or diamond pure substance；The mixture overflow that level-one is classified in case is added in second level classification case and is divided
From, the sand setting that second level is classified in case is added to second level shaking table and sorts, obtain corresponding partial size graphite pure substance and/or
Diamond pure substance；The mixture overflow that second level is classified in case is added in three-level classification case and is separated, three-level is classified
Sand setting in case is added to third level shaking table and is sorted, and obtains the graphite pure substance and/or diamond pure substance of corresponding partial size.
The volume of the level-one classification case is set as 20~30L；The volume of the described second level classification case is set as 70~
100L；The volume of the three-level classification case is set as 200~300L.
The design parameter that the first order shaking table is arranged is：Shaking table inclination angle is 3.5~4.5 degree, and sorting stroke is 5~6mm,
Sorting jig frequency is 450~500 times/min；The design parameter that the second level shaking table is arranged is：Shaking table inclination angle is 3.0~4.0 degree,
Sorting stroke is 6~7mm, and sorting jig frequency is 500~550 times/min；The design parameter that the third level shaking table is arranged is：Shaking table
Inclination angle is 2.5~3.5 degree, sorts 7~8mm of stroke, sorts 550~600 times/min of jig frequency.
The present invention carries out classification separation by the separator that classification case and shaking table combine, and classification case and shaking table are equal
Equipped with multilevel device, every stage arrangement is equipped with multiple and different parameters, and the diamond of different-grain diameter and graphite mixture can be made to obtain
To being totally separated from, to obtain diamond pure substance and graphite pure substance.
In the step (2), mixture is crushed by the cycle-index of decentralized processing and is more than or equal to 5.Wherein, it is crushed mixture
It can be 6 times, 9 times, 11 times or 15 times by the cycle-index of decentralized processing.
In the step (4), diamond and graphite mixture are more than or equal to 5 by the cycle-index of decentralized processing.Wherein, golden
Hard rock and graphite mixture can be 6 times, 9 times, 11 times or 15 times by the cycle-index of decentralized processing.
Specific embodiments of the present invention are described below in detail.
Embodiment 1
The present invention provides a kind of methods for separating diamond matrix to include the following steps as shown in Fig. 1：
1) broken by the squash type with shearing function by the mixed material containing iron-cobalt-nickel catalyst and graphite, diamond
Broken machine carries out shearing composite breaking, and obtaining granularity is the material less than 3.0mm；Then it is ground, is obtained by sample grinding machine
It dissociates and what granularity was more tiny grinds mixture, the material content of granularity -0.074mm is 70%.Wherein, it is added in sample grinding machine
The small medium of bat and the big medium of wood and aqueous medium；The proportion of the small medium of bat and the big medium of wood is 1:2.
2) described is ground into mixed material by Hydrokinetic ultrasonic dispersal device, carries out the ultrasonic wave of 9 circulations
Decentralized processing obtains fully dispersed ultrasonic wave dispersed mixture.
3) it by the ultrasonic wave dispersed mixture, first passes through the weak magnetic separator that magnetic field strength is 100mT and carries out magnetic separation, remove
De-iron catalyst product；Magnetic separation is carried out using the intensity magnetic separator that magnetic field strength is 800mT, cobalt nickel accelerant product is removed, obtains gold
Hard rock and graphite mixture.
4) diamond and graphite mixture are passed through into Hydrokinetic ultrasonic dispersal device, carries out 8 circulations
Ultrasonic wave decentralized processing, the diamond and graphite mixture dispersed.
5) diamond of dispersion and graphite mixture are added in the level-one classification case that volume is 30L and are separated, it will
Sand setting in level-one classification case is added to first order shaking table and is sorted, and obtains the graphite pure substance and/or Buddha's warrior attendant of corresponding partial size
Stone pure substance；The mixture overflow that level-one is classified in case is added in the second level classification case that volume is 90L and is separated, by two
Sand setting in grade classification case is added to second level shaking table and is sorted, and obtains the graphite pure substance and/or diamond of corresponding partial size
Pure substance；The mixture overflow that second level is classified in case is added in the three-level classification case that volume is 250L and is separated, by three
Sand setting in grade classification case is added to third level shaking table and is sorted, and obtains the graphite pure substance and/or diamond of corresponding partial size
Pure substance.Wherein, the design parameter of setting first order shaking table is：Shaking table inclination angle is 3.5 degree, and sorting stroke is 5mm, sorts jig frequency
For 480 times/min；The design parameter that second level shaking table is arranged is：Shaking table inclination angle is 3.0 degree, and sorting stroke is 6mm, sorts jig frequency
For 500 times/min；The design parameter that third level shaking table is arranged is：Shaking table inclination angle is 2.5 degree, sorts stroke 7mm, sorts jig frequency
550 times/min.
Embodiment 2
A method of separation diamond matrix includes the following steps：
1) broken by the squash type with shearing function by the mixed material containing iron-cobalt-nickel catalyst and graphite, diamond
Broken machine carries out shearing composite breaking, and obtaining granularity is the material less than 2.0mm；Then it is ground, is obtained by sample grinding machine
It dissociates and what granularity was more tiny grinds mixture, the material content of granularity -0.074mm is 80%.Wherein, it is added in sample grinding machine
The small medium of bat and the big medium of wood and aqueous medium；The proportion of the small medium of bat and the big medium of wood is 1:1.
2) described is ground into mixed material by Hydrokinetic ultrasonic dispersal device, carries out the ultrasonic wave of 11 circulations
Decentralized processing obtains fully dispersed ultrasonic wave dispersed mixture.
3) it by the ultrasonic wave dispersed mixture, first passes through the weak magnetic separator that magnetic field strength is 120mT and carries out magnetic separation, remove
De-iron catalyst product；Magnetic separation is carried out using the intensity magnetic separator that magnetic field strength is 900mT, cobalt nickel accelerant product is removed, obtains gold
Hard rock and graphite mixture.
4) diamond and graphite mixture are passed through into Hydrokinetic ultrasonic dispersal device, carries out 9 circulations
Ultrasonic wave decentralized processing, the diamond and graphite mixture dispersed.
5) diamond of dispersion and graphite mixture are added in the level-one classification case that volume is 20L and are separated, it will
Sand setting in level-one classification case is added to first order shaking table and is sorted, and obtains the graphite pure substance and/or Buddha's warrior attendant of corresponding partial size
Stone pure substance；The mixture overflow that level-one is classified in case is added in the second level classification case that volume is 70L and is separated, by two
Sand setting in grade classification case is added to second level shaking table and is sorted, and obtains the graphite pure substance and/or diamond of corresponding partial size
Pure substance；The mixture overflow that second level is classified in case is added in the three-level classification case that volume is 300L and is separated, by three
Sand setting in grade classification case is added to third level shaking table and is sorted, and obtains the graphite pure substance and/or diamond of corresponding partial size
Pure substance.Wherein, the design parameter of setting first order shaking table is：Shaking table inclination angle is 4 degree, and sorting stroke is 6mm, and sorting jig frequency is
450 times/min；The design parameter that second level shaking table is arranged is：Shaking table inclination angle is 3.5 degree, and sorting stroke is 7mm, and sorting jig frequency is
550 times/min；The design parameter that third level shaking table is arranged is：Shaking table inclination angle is 3.2 degree, sorts stroke 7.5mm, sorts jig frequency
570 times/min.
Embodiment 3
A method of separation diamond matrix includes the following steps：
1) broken by the squash type with shearing function by the mixed material containing iron-cobalt-nickel catalyst and graphite, diamond
Broken machine carries out shearing composite breaking, and obtaining granularity is the material less than 1.5mm；Then it is ground, is obtained by sample grinding machine
It dissociates and what granularity was more tiny grinds mixture, the material content of granularity -0.074mm is 80%.Wherein, it is added in sample grinding machine
The small medium of bat and the big medium of wood and alcoholic media；The proportion of the small medium of bat and the big medium of wood is 1:2.
2) described is ground into mixed material by Hydrokinetic ultrasonic dispersal device, carries out the ultrasonic wave of 13 circulations
Decentralized processing obtains fully dispersed ultrasonic wave dispersed mixture.
3) it by the ultrasonic wave dispersed mixture, first passes through the weak magnetic separator that magnetic field strength is 160mT and carries out magnetic separation, remove
De-iron catalyst product；Magnetic separation is carried out using the intensity magnetic separator that magnetic field strength is 950mT, cobalt nickel accelerant product is removed, obtains gold
Hard rock and graphite mixture.
4) diamond and graphite mixture are passed through into Hydrokinetic ultrasonic dispersal device, carries out 10 circulations
Ultrasonic wave decentralized processing, the diamond and graphite mixture dispersed.
5) diamond of dispersion and graphite mixture are added in the level-one classification case that volume is 25L and are separated, it will
Sand setting in level-one classification case is added to first order shaking table and is sorted, and obtains the graphite pure substance and/or Buddha's warrior attendant of corresponding partial size
Stone pure substance；The mixture overflow that level-one is classified in case is added in the second level classification case that volume is 100L and is separated, it will
Sand setting in second level classification case is added to second level shaking table and is sorted, and obtains the graphite pure substance and/or Buddha's warrior attendant of corresponding partial size
Stone pure substance；The mixture overflow that second level is classified in case is added in the three-level classification case that volume is 200L and is separated, it will
Sand setting in three-level classification case is added to third level shaking table and is sorted, and obtains the graphite pure substance and/or Buddha's warrior attendant of corresponding partial size
Stone pure substance.Wherein, the design parameter that the first order shaking table is arranged is：Shaking table inclination angle is 4.5 degree, and sorting stroke is 5.5mm,
Sorting jig frequency is 500 times/min；The design parameter that the second level shaking table is arranged is：Shaking table inclination angle is 4.0 degree, and sorting stroke is
6.5mm, sorting jig frequency are 525 times/min；The design parameter that the third level shaking table is arranged is：Shaking table inclination angle is 3.5 degree, sorting
Stroke 8mm sorts 600 times/min of jig frequency.
Upper embodiment is only used to illustrate the technical scheme of the present invention and not to limit it, reference only to preferred embodiment to the present invention
It is described in detail.Those skilled in the art should understand that can modify to technical solution of the present invention or
Person's equivalent replacement should all cover in scope of the presently claimed invention without departing from the spirit and scope of the technical solution of the present invention
In the middle.
Claims (10)
1. a kind of method for separating diamond matrix, which is characterized in that include the following steps：
(1) it is crushed the mixed raw material containing diamond, graphite, iron-cobalt-nickel catalyst to obtain broken mixture；
(2) the broken mixture is subjected to ultrasonic wave decentralized processing, obtains ultrasonic wave dispersed mixture；
(3) by the ultrasonic wave dispersed mixture, magnetic separation is carried out, iron-cobalt-nickel catalyst product is removed, obtains diamond and graphite
Mixture；
(4) by the diamond and graphite mixture, ultrasonic wave decentralized processing is carried out, the diamond and graphite dispersed is mixed
Close object.
(5) diamond of the dispersion and graphite mixture are subjected to classification separation, separate graphite with diamond.
2. the method as described in claim 1, which is characterized in that the concrete operations of the step (1) are：Will containing diamond,
Graphite, iron-cobalt-nickel catalyst mixed raw material successively carry out shearing and composite breaking and grind, obtain broken mixture.
3. the method as described in claim 1, which is characterized in that granularity-in the broken mixture of the step (1)
The material content of 0.074mm is more than or equal to 70%.
4. the method as described in claim 1, which is characterized in that the magnetic separation of the step (3) be low intensity magnetic separation and high intensity magnetic separation, it is described
Ultrasonic wave dispersed mixture successively carries out low intensity magnetic separation and high intensity magnetic separation, removes iron-cobalt-nickel catalyst product.
5. method as claimed in claim 4, which is characterized in that the magnetic field strength of the low intensity magnetic separation is 60mT~250mT；Institute
The magnetic field strength for the high intensity magnetic separation stated is 600mT~1450mT.
6. the method as described in claim 1, which is characterized in that in the step (5), the diamond of dispersion and graphite are mixed
Object is added in classification case and shaking table, is carried out classification separation, is separated graphite with diamond.
7. method as claimed in claim 6, which is characterized in that in the step (5), the diamond of dispersion and graphite are mixed
Object is classified case and third level shaking table by level-one classification case, first order shaking table, second level classification case, second level shaking table, three-level,
Classification separation is carried out, varigrained graphite and diamond are separated.
8. the method for claim 7, which is characterized in that the concrete operations of the step (5) are：By the diamond of dispersion
It is charged first in level-one classification case and is separated with graphite mixture, the sand setting that level-one is classified in case is added to first order shaking table
It is sorted, obtains the graphite pure substance and/or diamond pure substance of corresponding partial size；Level-one is classified the mixture overflow in case
It is added in second level classification case and is separated, the sand setting that second level is classified in case is added to second level shaking table and is sorted, is obtained
The graphite pure substance and/or diamond pure substance of corresponding partial size；The mixture overflow that second level is classified in case is added to three fractions
It is separated in grade case, the sand setting that three-level is classified in case is added to third level shaking table and is sorted, the stone of corresponding partial size is obtained
Black pure substance and/or diamond pure substance.
9. method according to claim 8, which is characterized in that the volume of the level-one classification case is set as 20~30L；It will
The volume of the second level classification case is set as 70~100L；The volume of the three-level classification case is set as 200~300L.
10. method according to claim 8, which is characterized in that the design parameter that the first order shaking table is arranged is：Shaking table inclines
Angle is 3.5~4.5 degree, and sorting stroke is 5~6mm, and sorting jig frequency is 450~500 times/min；The second level shaking table is set
Design parameter is：Shaking table inclination angle is 3.0~4.0 degree, and sorting stroke is 6~7mm, and sorting jig frequency is 500~550 times/min；If
The design parameter for setting the third level shaking table is：Shaking table inclination angle is 2.5~3.5 degree, sorts 7~8mm of stroke, sorts jig frequency 550
~600 times/min.
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| CN (1) | CN108855585A (en) |
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