CN115945288A - Metal mineral enrichment process and system based on dry separation equipment - Google Patents
Metal mineral enrichment process and system based on dry separation equipment Download PDFInfo
- Publication number
- CN115945288A CN115945288A CN202211167475.0A CN202211167475A CN115945288A CN 115945288 A CN115945288 A CN 115945288A CN 202211167475 A CN202211167475 A CN 202211167475A CN 115945288 A CN115945288 A CN 115945288A
- Authority
- CN
- China
- Prior art keywords
- dry
- screen
- separator
- classifying
- classifying screen
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
Abstract
The invention discloses a metal mineral enrichment process and a metal mineral enrichment system based on dry separation equipment, wherein the process comprises the steps of screening, crushing and drying raw ores to be separated, and then separating the raw ores in coarse fraction in a photoelectric separator to obtain coarse fraction concentrate and tailings; and the medium and fine fraction minerals enter a composite dry separator for separation to obtain medium and fine fraction tailings and rough concentrate, the rough concentrate is screened by a grading sieve to obtain medium and fine fraction rough concentrate, and the fine fraction rough concentrate enters a vibrating fluidized bed separator for separation of the concentrate and the tailings. The system comprises a raw ore preparation and drying part and a sorting part. The invention can realize the simultaneous high-efficiency separation of metal minerals with different particle sizes of coarse, medium and fine, and solves the problems of few separated products, poor quality of concentrate, low utilization rate of medium, and the like in the field of dry beneficiation at present.
Description
The application is a divisional application of a patent application named as 'a metal mineral enrichment process and system based on dry separation equipment', the application date of the original application is 09 and 18 days in 2018, and the application number is 201811085381.2.
Technical Field
The invention belongs to the field of dry separation of minerals, relates to a metal mineral dry enrichment process and system, and particularly relates to a metal mineral enrichment process and system based on dry separation equipment.
Background
The metal ore is one of mineral resources closely related to human production and life, and provides necessary metal resources for the survival development of the human society. Under the influence of geological changes and chemical properties of metals, the natural endowment of Chinese metal mineral resources is poor, most of metal minerals do not exist in a monomer form, but coexist with non-metallic substances or other metals in an ore-forming environment, and great difficulty is brought to development and comprehensive utilization. Mining, ore dressing and smelting are three main links of comprehensive utilization of metal mineral resources, wherein ore dressing is the most critical, namely, the process of dissociating useful metal mineral particles with certain shapes and specifications contained in the mineral resources by applying external force, then relatively enriching target minerals by physical, chemical and physicochemical methods and separating the target minerals from non-target minerals.
Most of metal minerals have low taste and fine embedded granularity, and with the development of mineral processing and mineral resource utilization technologies, the utilization of the metal minerals is not only used for extracting metal elements, but also aims at separating and extracting different metal/nonmetal components in mineral resources for comprehensive processing and utilization. In the mineral separation process, mineral dissociation, classification and enrichment are the basis of target mineral purification, the upper limit of the feed size fraction of the common wet-process rough separation and enrichment technology is low, and the mined raw ore is required to be fully crushed and dissociated, so that a large amount of energy consumption is generated. In addition, the wet roughing technology increases the moisture of raw ores, changes the argillization characteristic and the surface characteristic of part of metal/nonmetal target minerals and influences further fine selection and purification. Therefore, the dry-method mineral separation equipment based on no water has great significance for enriching and separating the metal minerals.
The dry-method mineral separation equipment has single function and limited separation effect, and only has certain separation effect on the rough separation of the whole-size-fraction raw ore or on the feeding of a certain specific size fraction. The pneumatic dry beneficiation method (such as pneumatic jigging, a pneumatic table concentrator and the like) takes air as a separation medium, so that the separation efficiency is low and the applicability is poor; the lower sorting limit of equipment such as X-ray, image recognition and the like for recognizing useful/useless components in minerals by means of a photoelectric technology is high, and the device is mainly suitable for sorting and discharging gangue in bulk minerals; the separation equipment of autogenous medium is mainly used for removing waste rock of medium and fine fraction minerals; based on vibration external force, the separation density can be flexibly adjusted by using the ultrafine solid particles with different densities as the heavy vibration dense medium mineral separation equipment, the separation precision is high, and fine-grained minerals of-6 mm can be effectively separated. Due to the limitations of each dry-method mineral processing device, under the separation process designed based on the device, the problems of few separated products, poor concentrate quality, low medium utilization rate, dust zero emission, large influence of water on feeding and the like exist, so that the dry separation and quality improvement degree and high-efficiency utilization of metal mineral resources are limited. Therefore, deep dry separation processing of the metal mineral resources must be enhanced, the separation process is perfected, and the functional combination of equipment is optimized, so as to realize efficient dry enrichment and clean utilization of the metal mineral resources.
Disclosure of Invention
The invention aims to provide a metal mineral enrichment process and system based on dry separation equipment, which can realize high-efficiency rough separation and enrichment of metal minerals with different particle sizes, such as coarse, medium and fine particles.
In order to achieve the purpose, the invention provides the following scheme:
a metal mineral enrichment process based on dry separation equipment comprises the following steps:
classifying ores through a classifying screen with the aperture of 200mm, removing ferromagnetic impurities from raw ores with the diameter of +200mm on the screen through an iron remover, crushing the raw ores with the diameter of-200 mm by a crusher, mixing the crushed raw ores with the diameter of-200 mm below the screen, and then screening the mixture by the classifying screen with the aperture of 100mm;
sorting oversize products of a 100mm classifying screen by a photoelectric sorting machine, and discharging a concentrate product I and a tailing product I with the granularity of 100-200 mm;
judging whether the external moisture of undersize materials of a 100mm classifying screen is higher than 8%, if so, drying the undersize materials until the external moisture is lower than 8%;
separating the undersize product with the external moisture of less than 8% by a composite dry separator to obtain a tailing product II and rough concentrate;
classifying the rough concentrate through a classifying screen with the aperture of 6mm, and obtaining a concentrate product II by using materials with the aperture of 6-100 mm on the screen;
classifying coarse concentrate with the size of minus 6mm below the sieve of the classifying sieve with the size of 6mm by using the classifying sieve with the size of 0.5mm, and enabling the material with the size of minus 0.5mm below the sieve to become a concentrate product IV;
and (3) sorting the materials with the size of 0.5-6 mm on the screen of the 0.5mm classifying screen by using a vibrating fluidized bed sorting machine, wherein the sorted sediments and floats become a tailing product III and a concentrate product III respectively.
Further, the metal mineral enrichment process based on the dry separation equipment further comprises the following steps:
the air supply equipment provides air power for the composite dry-method separator and the vibrating fluidized bed separator.
Further, the metal mineral enrichment process based on the dry separation equipment further comprises the following steps:
and dust generated by the photoelectric separator, the combined dry separator and the vibrating fluidized bed separator is collected by a dust removing device.
In order to achieve the purpose, the invention provides the following scheme:
a system for implementing the metal mineral enrichment process based on the dry separation equipment comprises a raw ore preparation and drying part and a separation part;
the raw ore preparation and drying part comprises a classifying screen I, an iron remover, a crusher, a classifying screen II, a buffer bin II, a feeder II, a dryer, a buffer bin III and a feeder III; the aperture of the sieve pore of the classifying sieve I is 200mm; the aperture of the sieve pore of the classifying sieve II is 100mm;
the sorting part comprises a buffer bin I, a feeder I, a photoelectric sorting machine, a composite dry sorting machine, a classifying screen III, a classifying screen IV, a buffer bin IV, a feeder IV and a vibrating fluidized bed sorting machine; the aperture of the sieve pore of the classifying sieve III is 6mm; the aperture of the sieve pore of the classifying sieve IV is 0.5mm;
the screen material outlet of the classifying screen I is connected with the material inlet of the crusher; the iron remover is arranged between the discharge port on the screen of the classifying screen I and the feed port of the crusher; the screen lower discharge port of the classifying screen I and the discharge port of the crusher are connected with the feeding port of the classifying screen II;
a screen lower discharge port of the classifying screen II is connected with a feed inlet of the buffer bin II; a discharge hole of the buffer bin II is connected with a feeding hole of the feeder II; a discharge port of the feeder II is respectively connected with a dryer and a feeding port of the composite dry-method separator; a discharge port of the dryer is connected with a feed port of the buffer bin III; a discharge hole of the buffer bin III is connected with a feed inlet of the feeding machine III, and a discharge hole of the feeding machine III is connected with a feed inlet of the composite dry-method separator; the screen material outlet of the classifying screen II is connected with the material inlet of the buffer bin I; a discharge port of the buffer bin I is connected with a feeding port of the feeder I; a discharge port of the feeding machine I is connected with a feeding port of the photoelectric separator;
a discharge port of the composite dry separator is connected with a feed port of the classifying screen III; a screen lower discharge port of the classifying screen III is connected with a material inlet of the classifying screen IV; the screen upper discharge port of the classifying screen IV is connected with the feed inlet of the buffer bin IV; a discharge hole of the buffer bin IV is connected with a feeding hole of the feeder IV; and a discharge port of the feeder IV is connected with a feed port of the vibrating fluidized bed separator.
Furthermore, the enrichment system also comprises an air supply dust removal part, wherein the air supply dust removal part comprises a dust remover II, an induced draft fan II, a flow meter, an air bag and an air blower;
an inlet of the dust remover II is respectively connected with dust discharge ports of the photoelectric separator, the combined dry separator and the vibrating fluidized bed separator, and an outlet of the dust remover II is connected with a draught fan II; the air blower is connected with one end of the flow meter through the air bag, and the other end of the flow meter is respectively connected with the ventilation openings of the composite dry method separator and the vibrating fluidized bed separator.
Further, the air supply dust removal part also comprises a dust remover I and an induced draft fan I, wherein an inlet of the dust remover I is connected with an air outlet of the dryer, and an air outlet of the dust remover I is connected with the induced draft fan I.
Furthermore, a pressure sensor is arranged inside the vibrating fluidized bed separator.
Preferably, the dryer is a vibrating mixed flow dryer.
Preferably, the photoelectric classifier is an X-ray classifier or an image classifier.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
(1) The full-particle-level dry separation clean system and the full-particle-level dry separation clean process are creatively provided by combining the existing dry beneficiation equipment and technical conditions, the limitations of each dry beneficiation equipment are overcome, the simultaneous high-efficiency rough concentration and enrichment of metal minerals with different particle sizes of coarse, medium and fine can be realized, the problems of few sorted products, poor quality of concentrate, low medium utilization rate, zero dust emission and the like in the field of the existing dry beneficiation are solved, and the foundation is laid for promoting the popularization and application of the dry beneficiation equipment.
(2) The full-size dry separation clean system and the full-size dry separation clean process can produce concentrate products with different qualities according to user requirements, can provide high-quality raw material minerals for preparing and purifying high-precision metal minerals, can synchronously realize efficient enrichment of nonmetal ores associated with the metal minerals, save cost and improve comprehensive utilization of resources.
(3) Compared with the traditional wet-method ore dressing technology, the invention integrates, modularizes and systematizes drying equipment, dry-method ore dressing equipment and related auxiliary equipment, and sorts minerals with the granularity of-200 mm according to the density, granularity, shape and photoelectric effect difference of target components (concentrate) and other components (tailings).
(4) The full-grain-level dry separation cleaning process is simultaneously suitable for separating and processing metal mineral resources such as iron, copper, tin, nickel and the like based on a similar separation principle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a flow chart of the metal mineral enrichment process based on a dry separation device according to the invention;
FIG. 2 is a schematic structural diagram of a metal mineral enrichment system based on a dry sorting device.
Description of the symbols:
1-a classifying screen I; 2-a de-ironing separator; 3-a crusher; 4-classifying screen II; 5-a buffer bin I; 6-feeding machine I; 7-a photoelectric separator; 8-a buffer bin II; 9-feeding machine II; 10-a dryer; 11-buffer bin III; 12-feeding machine III; 13-composite dry separator; 14-classifying screen III; 15-classifying screen IV; 16-a buffer bin IV; 17-feeder IV; 18-a vibratory fluidized bed classifier; 19-a pressure sensor; 20-a dust remover I; 21-an induced draft fan I; 22-a dust remover II; 23-induced draft fan II; 24-a flow meter; 25-wind bag; 26-blower.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in figure 1, the metal mineral enrichment process based on the dry separation equipment comprises the following steps:
1) Preparing and drying raw ore: the chalcopyrite ore transported from a mine or a storage yard is firstly classified by a classifying screen with the aperture of 200mm, the raw ore with the diameter of 200mm above the screen is crushed to 200mm below the screen by a crusher, and the crushed raw ore with the diameter of 100mm below the screen is mixed with the raw ore with the diameter of 200mm below the screen and then is sieved by the classifying screen with the aperture of 100mm; undersize, i.e. external moisture M of-100 mm raw ore f Drying above 8% in advance, discharging from the dryer after water content is reduced to below 8%, -100mm raw ore external water content M f Less than 8% is directly fed into the subsequent step;
2) Separating raw ore: oversize products of a 100mm classifying screen, namely 100-200 mm raw ores are fed into a photoelectric separator for separation, and a concentrate product 1 and a tailing product 1 with the granularity of 100-200 mm are discharged; m f Feeding less than 8% of-100 mm raw ore into a composite dry separator, separating to obtain a tailing product 2 and rough concentrate, classifying the rough concentrate through a classifying screen with the aperture of 6mm, and enabling oversize materials, namely 100-6 mm materials, to become a concentrate product 2; the undersize, namely-6 mm rough concentrate, is continuously graded through a 0.5mm sieve; oversize materials, namely 6-0.5 mm materials enter a vibrating fluidized bed separator for separation, and separated sediments and floats become a tailing product 3 and a concentrate product 3 respectively.
The air supply equipment is used for supplying air power to the composite dry-method separator and the vibrating fluidized bed separator.
And dust generated by the photoelectric separator, the combined dry separator and the vibrating fluidized bed separator is collected by a dust removing device.
As shown in FIG. 2, the metal mineral enrichment system based on the dry separation equipment comprises a raw ore preparation and drying part, a separation part and an air supply dust removal part;
the raw ore preparation and drying part comprises a classifying screen I1, an iron remover 2, a crusher 3, a classifying screen II 4, a buffer bin II 8, a feeder II 9, a dryer 10, a buffer bin III 11 and a feeder III 12. The dryer 10 is a vibrating mixed flow dryer.
The sorting part comprises a buffer bin I5, a feeder I6, a photoelectric sorting machine 7, a composite dry sorting machine 13, a classifying screen III 14, a classifying screen IV 15, a buffer bin IV 16, a feeder IV 17 and a vibrating fluidized bed sorting machine 18, wherein the mesh diameter of the classifying screen I1 is 200mm, the mesh diameter of the classifying screen II 4 is 100mm, the mesh diameter of the classifying screen III 14 is 6mm, and the mesh diameter of the classifying screen IV 15 is 0.5mm. The vibrating fluidized bed separator 18 is internally provided with a pressure sensor 19. The photoelectric sorting machine 7 is a dry sorting device for identifying useful minerals based on ray transmission, diffraction and reflection characteristics, material imaging color and shape difference, such as an X-ray sorting machine, an image sorting machine and the like.
The air supply and dust removal part comprises a dust remover I20, an induced draft fan I21, a dust remover II 22, an induced draft fan II 23, a flow meter 24, an air bag 25 and an air blower 26;
an oversize discharge port of the classifying screen I1 is connected with a feed port of the crusher 3, the iron remover 2 is arranged between an oversize discharge port of the classifying screen I1 and a feed port of the crusher 3, an undersize discharge port of the classifying screen I1 and a discharge port of the crusher 3 are both connected with a feed port of the classifying screen II 4, an undersize discharge port of the classifying screen II 4 is connected with a feed port of the buffer bin II 8, a discharge port of the buffer bin II 8 is connected with a feed port of the feeder II 9, a discharge port of the feeder II 9 is respectively connected with a feed port of the dryer 10 and a feed port of the composite dry-method separator 13, a discharge port of the dryer 10 is connected with a feed port of the buffer bin III 11, a discharge port of the buffer bin III 11 is connected with a feed port of the feeder III 12, and a discharge port of the feeder III 12 is connected with a feed port of the composite dry-method separator 13;
an oversize discharge port of the classifying screen II 4 is connected with a feed port of the buffer bin I5, a discharge port of the buffer bin I5 is connected with a feed port of the feeder I6, and a discharge port of the feeder I6 is connected with a feed port of the photoelectric separator 7; the discharge port of the composite dry method separator 13 is connected with the feed port of a classifying screen III 14, the undersize discharge port of the classifying screen III 14 is connected with the feed port of a classifying screen IV 15, the oversize discharge port of the classifying screen IV 15 is connected with the feed port of a buffer bin IV 16, the discharge port of the buffer bin IV 16 is connected with the feed port of a feeder IV 17, the discharge port of the feeder IV 17 is connected with the feed port of a vibrating fluidized bed separator 18,
an inlet of the dust remover I20 is connected with an air outlet of the dryer 10, an air outlet of the dust remover I20 is connected with an induced draft fan I21, an inlet of the dust remover II 22 is respectively connected with dust discharge ports of the photoelectric separator 7, the combined dry separator 13 and the vibrated fluidized bed separator 18, and an outlet of the dust remover II 22 is connected with an induced draft fan II 23; the blower 26 is connected with one end of the flow meter 24 through the wind bag 25, and the other end of the flow meter 24 is respectively connected with the ventilation openings of the combined dry separator 13 and the vibrating fluidized bed separator 18.
The working process of the system of the invention is as follows:
chalcopyrite ore transported from a mine or a storage yard is firstly fed into a classifying screen I1 with the aperture of 200mm, after primary screening, oversize, namely, raw ore with the diameter of 200mm is removed of ferromagnetic impurities by an iron remover 2, then is crushed to 200mm by a crusher 3, is mixed with undersize, namely, raw ore with the diameter of 200mm, and then is fed into a classifying screen II 4 with the aperture of 100mm, and after screening, oversize, namely, raw ore with the diameter of 100mm is sent into a buffer bin II 8 for standby. Dry beneficiation equipment requires that the fed material has external moisture M f And the moisture content is lower than 8 percent, so if the external moisture content of the raw ore is too high, the raw ore is uniformly fed into a dryer 10 through a feeding machine II 9 to be subjected to pre-drying treatment, and the raw ore is conveyed into a buffer bin III 11 after the moisture content is reduced to be lower than 8 percent and is fed into a sorting device through a feeding machine III 12. If the external moisture of raw ore is M f Less than 8 percent, and can directly enter the subsequent separation process through a feeder II 9.
Oversize products of the classifying screen II 4, namely +100mm raw ores, are conveyed into a buffer bin I5 and fed into a photoelectric separator through a feeder I6 for separation.
External moisture M f Less than 8% of raw ore with the diameter of-100 mm is fed into a composite dry separator 13 for separation, the vibration and the wind force are added to force the material to make spiral turning movement and loose, the separation is completed under the combined action of gravity (potential energy) layering effect, autogenous medium buoyancy effect and segregation effect, the tailings are discharged, the residual material becomes rough concentrate, and the recleaning process is carried out. Firstly feeding into a classifying screen III 14 with 6mm aperture for classifying, feeding plus 6mm screen oversize products into a concentrate product 2, feeding minus 6mm screen undersize products into a classifying screen IV 15 with 0.5mm aperture for classifying again, feeding plus 0.5mm screen oversize products into a concentrate product 4, and feeding minus 0.5mm screen undersize products into a buffer screenAnd the flushing bin IV 16 is optional.
And (3) uniformly feeding the 0.5-6 mm rough concentrate in the buffer bin IV 16 into a vibrating fluidized bed separator 18 through a feeder IV 17 for separation to obtain a tailing product 3 and a concentrate product 3. Meanwhile, in the working process of the vibrating fluidized bed separator 18, the density and the height of the separation bed layer in the separator are monitored in real time through the pressure sensor 19, and a basis is provided for real-time regulation and control of bed layer parameters.
The flow meter 24, the air bag 25 and the blower 26 provide aerodynamic force for the combined dry separator 13 and the vibrated fluidized bed separator 18; the dust generated by the separation system in the working process of the combined dry method separator 13 and the vibrating fluidized bed separator 18 mainly comes from fine-grain mineral powder and is collected by the dust remover II 22, the induced draft fan II 23 and the like. Dust and flue gas generated in the drying operation are collected through a dust remover I20 and a draught fan I21.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A metal mineral enrichment process based on dry separation equipment is characterized by comprising the following steps:
classifying ores through a classifying screen with the aperture of 200mm, removing ferromagnetic impurities from raw ores with the diameter of +200mm on the screen through an iron remover, crushing the raw ores with the diameter of-200 mm by a crusher, mixing the crushed raw ores with the diameter of-200 mm below the screen, and then screening the mixture by the classifying screen with the aperture of 100mm;
sorting oversize products of a 100mm classifying screen by a photoelectric sorting machine, and discharging a concentrate product I and a tailing product I with the granularity of 100-200 mm;
judging whether the external moisture of undersize materials of a 100mm classifying screen is higher than 8%, if so, drying the undersize materials until the external moisture is lower than 8%;
separating the undersize product with the external moisture of less than 8% by a composite dry separator to obtain a tailing product II and rough concentrate;
classifying the rough concentrate through a classifying screen with the aperture of 6mm, and obtaining a concentrate product II by using materials with the aperture of 6-100 mm on the screen;
classifying coarse concentrate with the size of minus 6mm below the sieve of the classifying sieve with the size of 6mm by using the classifying sieve with the size of 0.5mm, and enabling the material with the size of minus 0.5mm below the sieve to become a concentrate product IV;
and (3) sorting the materials with the size of 0.5-6 mm on the screen of the 0.5mm classifying screen by using a vibrating fluidized bed sorting machine, wherein the sorted sediments and floats become a tailing product III and a concentrate product III respectively.
2. The dry sorting equipment based metal mineral enrichment process of claim 1, further comprising:
the air supply equipment provides air power for the composite dry-method separator and the vibrating fluidized bed separator.
3. The dry sorting equipment based metal mineral enrichment process of claim 1, further comprising:
and collecting dust generated by the photoelectric separator, the combined dry separator and the vibrating fluidized bed separator through dust removing equipment.
4. A metal mineral enrichment system based on a dry separation device, which is applied to the metal mineral enrichment process based on the dry separation device, which is characterized by comprising a raw ore preparation and drying part and a separation part, wherein the raw ore preparation and drying part is arranged on the front side of the separation part;
the raw ore preparation and drying part comprises a classifying screen I (1), an iron remover (2), a crusher (3), a classifying screen II (4), a buffer bin II (8), a feeding machine II (9), a dryer (10), a buffer bin III (11) and a feeding machine III (12); the aperture of the sieve pore of the classifying sieve I (1) is 200mm; the mesh aperture of the classifying screen II (4) is 100mm;
the sorting part comprises a buffer bin I (5), a feeding machine I (6), a photoelectric sorting machine (7), a composite dry-method sorting machine (13), a classifying screen III (14), a classifying screen IV (15), a buffer bin IV (16), a feeding machine IV (17) and a vibrating fluidized bed sorting machine (18); the mesh aperture of the classifying screen III (14) is 6mm; the aperture of the sieve pore of the classifying sieve IV (15) is 0.5mm;
an oversize discharge port of the classifying screen I (1) is connected with a feed port of the crusher (3); the iron remover (2) is arranged between the discharge port on the screen of the classifying screen I (1) and the feed port of the crusher (3); the screen lower discharge port of the classifying screen I (1) and the discharge port of the crusher (3) are connected with the feeding port of the classifying screen II (4);
a screen lower discharge port of the classifying screen II (4) is connected with a feed port of the buffer bin II (8); a discharge hole of the buffer bin II (8) is connected with a feeding hole of the feeder II (9); a discharge hole of the feeder II (9) is respectively connected with a dryer (10) and a feeding hole of the composite dry-method separator (13); a discharge hole of the dryer (10) is connected with a feed hole of the buffer bin III (11); a discharge hole of the buffer bin III (11) is connected with a feeding hole of the feeder III (12); the discharge of the feeder III (12) is connected with the feeding port of the composite dry separator (13); an upper sieve discharge port of the classifying sieve II (4) is connected with a feed port of the buffer bin I (5); a discharge hole of the buffer bin I (5) is connected with a feeding hole of the feeder I (6); a discharge port of the feeder I (6) is connected with a feeding port of the photoelectric separator (7);
a discharge port of the composite dry separator (13) is connected with a feed port of the classifying screen III (14); a screen lower discharge port of the classifying screen III (14) is connected with a material inlet of the classifying screen IV (15); the screen upper discharge hole of the classifying screen IV (15) is connected with the material inlet of the buffer bin IV (16); a discharge hole of the buffer bin IV (16) is connected with a feeding hole of the feeding machine IV (17); and a discharge hole of the feeding machine IV (17) is connected with a feeding hole of the vibrating fluidized bed separator (18).
5. The metal mineral enrichment system based on the dry sorting device according to claim 4, characterized in that the metal mineral enrichment system based on the dry sorting device further comprises an air supply dust removal part; the air supply and dust removal part comprises a dust remover II (22), an induced draft fan II (23), a flowmeter (24), an air bag (25) and a blower (26);
an inlet of the dust remover II (22) is respectively connected with dust discharge ports of the photoelectric separator (7), the combined type dry method separator (13) and the vibrating fluidized bed separator (18), and an outlet of the dust remover II (22) is connected with a draught fan II (23);
the blower (26) is connected with one end of the flow meter (24) through the air bag (25), and the other end of the flow meter (24) is respectively connected with the ventilation openings of the composite dry separator (13) and the vibrating fluidized bed separator (18).
6. The metal mineral enrichment system based on the dry separation equipment according to claim 5, wherein the air supply dust removal part further comprises a dust remover I (20) and an induced draft fan I (21);
the inlet of the dust remover I (20) is connected with the air outlet of the dryer (10), and the air outlet of the dust remover I (20) is connected with the induced draft fan I (21).
7. The dry sorting device based metal mineral enrichment system of claim 4, characterized in that the vibrated fluidized bed sorter (18) is internally provided with a pressure sensor (19).
8. The metal mineral enrichment system based on a dry sorting plant according to claim 4, characterized in that the dryer (10) is a vibrating mixed flow dryer.
9. The metal mineral enrichment system based on a dry sorting plant according to claim 4, characterized in that the photoelectric sorter (7) is an X-ray sorter or an image sorter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211167475.0A CN115945288A (en) | 2018-09-18 | 2018-09-18 | Metal mineral enrichment process and system based on dry separation equipment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085381.2A CN109331988A (en) | 2018-09-18 | 2018-09-18 | A kind of metalliferous mineral process of enriching and system based on dry sorting equipment |
| CN202211167475.0A CN115945288A (en) | 2018-09-18 | 2018-09-18 | Metal mineral enrichment process and system based on dry separation equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811085381.2A Division CN109331988A (en) | 2018-09-18 | 2018-09-18 | A kind of metalliferous mineral process of enriching and system based on dry sorting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115945288A true CN115945288A (en) | 2023-04-11 |
Family
ID=65305414
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811085381.2A Pending CN109331988A (en) | 2018-09-18 | 2018-09-18 | A kind of metalliferous mineral process of enriching and system based on dry sorting equipment |
| CN202211167475.0A Pending CN115945288A (en) | 2018-09-18 | 2018-09-18 | Metal mineral enrichment process and system based on dry separation equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811085381.2A Pending CN109331988A (en) | 2018-09-18 | 2018-09-18 | A kind of metalliferous mineral process of enriching and system based on dry sorting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109331988A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495574A (en) * | 2020-03-05 | 2020-08-07 | 云南锡业研究院有限公司 | Novel low-grade ore preselection process |
| CN112090762B (en) * | 2020-11-09 | 2021-03-12 | 天津美腾科技股份有限公司 | Separation combination equipment and separation process |
| CN113399133B (en) * | 2021-05-28 | 2023-07-18 | 天津水泥工业设计研究院有限公司 | Dry classification system and classification process for tailings |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3403083B2 (en) * | 1998-08-24 | 2003-05-06 | 善之助 田中 | Dry coal separation method and apparatus |
| CN105214956B (en) * | 2015-10-28 | 2017-06-30 | 中国矿业大学 | A kind of dense gas solidization bed dry separation system and technique |
| CN105289985B (en) * | 2015-11-20 | 2017-05-24 | 中国矿业大学 | Full-fraction dry method separation clean technology and method for coal |
| CN105268544B (en) * | 2015-12-01 | 2018-02-23 | 中国矿业大学 | A kind of wide grade Coaseries kaolin process for upgrading based on fluidization sorting |
| CN106111534B (en) * | 2016-07-01 | 2018-01-30 | 中国矿业大学 | A kind of modular bauxite by dry method sorting process |
| EP3490729B1 (en) * | 2016-08-01 | 2021-10-06 | The University of Newcastle | An apparatus and method for the dry separation of particles |
-
2018
- 2018-09-18 CN CN201811085381.2A patent/CN109331988A/en active Pending
- 2018-09-18 CN CN202211167475.0A patent/CN115945288A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN109331988A (en) | 2019-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104815739B (en) | Magnetite dry grinding and dry separation method and device | |
| CN105289985B (en) | Full-fraction dry method separation clean technology and method for coal | |
| CN109331989B (en) | Dry dewatering and deashing process for coal full-size fraction | |
| CN102319619B (en) | Graded washing process for raw coal | |
| CN106861891B (en) | A kind of method for separating of low-grade black and white tungsten ore | |
| CN109482494B (en) | Full-particle-level dry method quality-improving and gangue-discharging process for power coal | |
| CN115945288A (en) | Metal mineral enrichment process and system based on dry separation equipment | |
| CN108745622B (en) | Long flame coal washing system and washing method | |
| CN110624686A (en) | Magnetite beneficiation process capable of fully releasing mill capacity | |
| CN105195427B (en) | A kind of iron ore dry separation technique based on dense gas solid bed | |
| CN110385197B (en) | Gravity separation system and process for barite fluorite associated ore | |
| CN105170306A (en) | Washing process for high-ash high-clay high-gangue coal | |
| CN108940555B (en) | Physical dry separation method for natural flake graphite and flake mica | |
| CN112517229B (en) | Beneficiation system and beneficiation method for seaside titanium zirconium placer | |
| CN108855579B (en) | Coal dressing method by using aqueous medium cyclone | |
| CN210449500U (en) | Coal dressing and desliming system for coal slime reseparation | |
| CN209997781U (en) | Coarse coal slime dense medium sorting system | |
| CN116889969A (en) | Household garbage slag sorting process | |
| AU743968B2 (en) | Beneficiation of iron ore waste | |
| CN114453127B (en) | Copper-tin symbiotic sulfide ore preselection grading beneficiation method | |
| CN113908975A (en) | Dry-wet combined separation method for power coal | |
| CN112076885A (en) | Enrichment process of coal-series kaolin in coal gangue | |
| CN105833987A (en) | Shaping technology in mixed mineral aggregate screen | |
| CN113522513B (en) | Wet sorting process for waste circuit boards | |
| CN215507268U (en) | Novel ore dressing device |
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 |