CN109909061B - Garnet efficient washing and selecting device and technology - Google Patents
Garnet efficient washing and selecting device and technology Download PDFInfo
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- CN109909061B CN109909061B CN201910334205.6A CN201910334205A CN109909061B CN 109909061 B CN109909061 B CN 109909061B CN 201910334205 A CN201910334205 A CN 201910334205A CN 109909061 B CN109909061 B CN 109909061B
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Abstract
The utility model provides a garnet efficient washing and sorting device, the device includes the assembly line that is used for handling the raw ore that contains garnet, is provided with first breaker, first screening machine, powder ore bin, rod mill, second screening machine, magnet separator, spiral chute and spiral classifier on the assembly line; during washing, crushing and grinding raw ore containing garnet, and then carrying out magnetic separation on the ground raw ore to separate out mechanical iron and magnetite; and then, carrying out gravity separation and grading gravity separation on the raw ore subjected to magnetic separation, and separating tailings containing impurities such as silt and the like to obtain the finished ore containing garnet. According to the washing and selecting device, raw ore of garnet is automatically crushed, ground, magnetically separated, reselected and classified reselected through mechanical equipment, sundries in the raw ore of garnet can be effectively selected, and finished ore containing garnet with higher purity is obtained, so that the current market demand is well met.
Description
Technical Field
The application relates to the field of mineral separation processes, in particular to a garnet efficient washing and separating device, and in particular relates to a process for washing and separating by adopting the garnet efficient washing and separating device.
Background
Garnet is a generic name of a group of island-like structure silicate minerals whose crystals belong to an equiaxed crystal system, and is widely distributed in nature, and various garnet has respective output conditions, and general garnet can be used as an abrasive material, and transparent and beautiful can be used as a precious stone.
Garnet is currently used in a number of important industrial sectors, such as the optical industry, the electronic industry, the mechanical industry, instrumentation, the printing industry, building materials, and the land mine.
Particularly, in the sand blasting grinding market, at present, materials such as silica sand, slag, coal coke and the like are used in a large amount, so that the defects which cannot be overcome are overcome, silica dust is easy to cause, and the environment is seriously polluted; garnet, however, is essentially free from the above drawbacks, is stable in supply, clean in texture, and suitable for use as a blast abrasive, and is now being used in place of silica sand in some fields, and is now fully possible to replace.
However, although garnet is widely distributed in nature, but is generally doped with other minerals, in actual exploitation, raw ores need to be screened, and garnet is separated from the raw ores, however, the screening method of garnet in the prior art is not very good, or the screening procedure is too complex, or the purity of the obtained garnet is not enough, and the actual market demand cannot be well met.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides the garnet efficient washing and selecting device which is reasonable in design and can effectively remove impurities in raw ores to obtain garnet finished ores.
The application aims to provide a process for washing garnet by adopting the efficient garnet washing and selecting device.
The technical problems to be solved by the application are realized by the following technical proposal. The application relates to a garnet efficient washing and selecting device which comprises a production line for processing raw ores containing garnet, wherein the production line is provided with a first crusher, a first screening machine, a powder ore bin, a rod mill, a second screening machine, a magnetic separator, a spiral chute and a spiral classifier;
the feeding end of the first screening machine is communicated with the discharging end of the first crusher, the fine material discharging end of the first screening machine is communicated with the powder ore bin, the coarse material discharging end of the first screening machine is communicated with the second crusher, and the discharging end of the second crusher is communicated with the feeding end of the first screening machine;
the feeding end of the rod mill is communicated with the discharging end of the powder ore bin, the discharging end of the rod mill is communicated with the second sieving machine, the discharging end of the second sieving machine is communicated with the feeding end of the magnetic separator, the non-magnetic discharging end of the magnetic separator is communicated with the spiral chute, and the magnetic discharging end of the magnetic separator is communicated with a first collecting tank for containing magnetic selected mechanical iron and magnetite;
the spiral chute comprises a first spiral chute and a second spiral chute, the concentrate discharge end of the first spiral chute is communicated with the spiral classifier, the middling discharge end of the first spiral chute is communicated with the second spiral chute, and the tailing discharge end of the first spiral chute is communicated with a second collecting tank for containing tailings;
the concentrate discharge end of the second spiral chute is communicated with the spiral classifier, the middling discharge end of the second spiral chute is communicated with a third collecting tank for containing the magnetic spodumene, and the tailing discharge end of the second spiral chute is communicated with the second collecting tank;
the coarse ore discharging end of the spiral classifier is communicated with a fourth collecting groove for containing garnet, the fine ore discharging end of the spiral classifier is communicated with a fine ore reprocessing device, the fine ore reprocessing device comprises a third spiral chute, and the fine discharging end of the third spiral chute is communicated with the second collecting groove; the coarse discharge end of the third spiral chute is communicated with a third screening machine, the coarse discharge end of the third screening machine is communicated with a fourth collecting tank, and the fine discharge end of the third screening machine is communicated with a fifth collecting tank for containing fine sand.
The technical problem to be solved by the application can be further solved by the following technical scheme that for the garnet efficient washing and sorting device, the spiral classifier comprises a first spiral classifier, a second spiral classifier and a third spiral classifier, wherein the feeding end of the first spiral classifier is communicated with the concentrate discharging end of a first spiral chute, the coarse material discharging end of the first spiral classifier is communicated with the feeding end of the second spiral classifier, the coarse material discharging end of the second spiral classifier is communicated with the feeding end of the third spiral classifier, the coarse material discharging end of the third spiral classifier is communicated with a fourth collecting tank, and the fine material discharging ends of the first spiral classifier, the second spiral classifier and the third spiral classifier are all communicated with the feeding end of the third spiral chute; the concentrate discharge end of the second spiral chute is communicated with the feed end of the second spiral classifier.
The technical problem to be solved by the application can be further solved by the following technical scheme, and for the garnet efficient washing and selecting device, a washing and filtering device is also communicated between the coarse material discharging end of the third screening machine and the fourth collecting tank.
The technical problem to be solved by the application can be further solved by the following technical scheme, for the garnet efficient washing and selecting device, the first crusher comprises a jaw crusher and a cone crusher which are sequentially communicated, and the second crusher is a cone crusher.
The technical problem to be solved by the application can be further solved by the following technical scheme, for the garnet efficient washing and selecting device, a garnet efficient washing and selecting process comprises the steps of crushing and grinding raw ores containing garnet, then carrying out magnetic separation on the ground raw ores, and separating out mechanical iron and magnetite; and then, carrying out gravity separation and grading gravity separation on the raw ore subjected to magnetic separation, and separating tailings containing impurities such as silt and the like to obtain the finished ore containing garnet.
The technical problems to be solved by the application can be further realized by the following technical scheme, and the garnet efficient washing and selecting process comprises the following specific steps:
(1) Crushing raw ore containing garnet by using a crusher, screening the crushed raw ore by using a vibrating screen, returning the raw ore with larger particles to the crusher for crushing again until the raw ore accords with the screening size, and conveying the raw ore qualified by screening to a powder ore bin for storage;
(2) Outputting raw ore in the powder ore bin outwards, grinding by a rod mill, screening the grinded raw ore by a classifying screen, and returning unqualified screening parts to the rod mill for secondary grinding and screening until screening is qualified;
(3) Wet magnetic separation is carried out on the raw ore which is qualified in screening, mechanical iron and magnetite in the raw ore are screened out, and the rest raw ore is conveyed to a spiral chute for reselection, so that primary concentrate, primary middling and primary tailings are obtained;
(4) Feeding the primary concentrate into a spiral classifier for classification and reselection to obtain coarse ore, namely finished ore containing garnet, feeding the obtained fine ore into a spiral chute for reselection, reselecting the obtained coarse ore, screening the obtained coarse ore, namely finished ore containing garnet, and discharging tailings left after reselection;
(5) The primary middlings are sent into a spiral chute again for re-selection to obtain secondary concentrate, secondary middlings and secondary tailings, the secondary concentrate is sent into a spiral classifier again for classification re-selection to obtain coarse ores, namely finished ores containing garnet; respectively discharging middlings and tailings;
(6) And discharging the primary tailings.
The technical problem to be solved by the application can be further solved by the following technical scheme, for the garnet efficient washing and selecting process, a jaw crusher and a cone crusher are adopted to crush raw ores twice in the step (1), and the raw ores unqualified by screening through a vibrating screen are crushed again by the cone crusher.
The technical problem to be solved by the application can be further solved by the following technical scheme, and for the garnet efficient washing and selecting process, in the step (4), primary concentrate is sent into a spiral classifier for three-time classification and reselection; and (5) mixing the primary middlings with the primary concentrates which are subjected to primary grading reselection in the step (4), and continuing to perform secondary grading reselection together with the primary concentrates.
The technical problem to be solved by the application can be further solved by the following technical scheme, and the fine ore obtained in the step (4) is subjected to filtering treatment after being subjected to reselection and screening in the garnet efficient washing and selecting process.
The technical problem to be solved by the application can be further solved by the following technical scheme, and the garnet efficient washing and selecting process is characterized in that the obtained fine ore is screened in the step (4) by adopting a high-frequency vibration fine screen.
Compared with the prior art, the method is convenient for subsequent conveying and sorting by crushing the raw ore containing garnet; the crushed raw ore is firstly subjected to magnetic separation to separate mechanical iron and magnetite, then is subjected to washing and separation, and the ore and the sand are separated under the gravity and the centrifugal force of the water flow rotational flow, so that the gravity separation effect is realized, the raw ore is also washed, and the purity and the cleanliness of the separated garnet-containing finished ore are ensured; secondly, the washing and separating process performs multiple grading and reselection on the primary concentrate, and performs reselection on the primary middling, so that the concentrate in the primary concentrate is further recovered, thereby ensuring the washing and separating purity and the washing and separating effect. According to the washing and selecting device, raw ore of garnet is automatically crushed, ground, magnetically separated, reselected and classified reselected through mechanical equipment, sundries in the raw ore of garnet can be effectively selected, and finished ore containing garnet with higher purity is obtained, so that the current market demand is well met.
Drawings
FIG. 1 is a schematic diagram of a structure of the present application;
fig. 2 is a schematic flow chart of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1-2, a garnet efficient washing and separating device comprises a production line for processing raw ores containing garnet, wherein a first crusher, a first screening machine 3, a powder ore bin 5, a rod mill 6, a second screening machine 7, a magnetic separator 8, a spiral chute and a spiral classifier are arranged on the production line;
the first crusher comprises a jaw crusher 1 and a cone crusher 2 which are sequentially communicated; the first screening machine 3 adopts a vibrating screen; the second sieving machine 7 adopts a classifying screen; the magnetic separator 8 is a wet magnetic separator;
the raw ore is from the inside of the eastern sea county of the Lian-Yungang city of Jiangsu province, the mining area occupies more than 500 mu, and the raw ore contains rutile, ilmenite, garnet and spodumene;
the feeding end of the first screening machine 3 is communicated with the discharging end of the first crusher, and the fine material discharging end of the first screening machine 3 is communicated with the powder ore bin 5 and is used for conveying crushed raw ore to the powder ore bin 5 for storage, so that subsequent centralized or separate treatment is facilitated; the coarse material discharge end of the first screening machine 3 is communicated with a second crusher 4, the second crusher 4 is a cone crusher, the discharge end of the second crusher 4 is communicated with the feed end of the first screening machine 3 and is used for screening the raw ore which is not completely crushed, and then secondary crushing is carried out, so that the crushing quality is ensured;
the feeding end of the rod mill 6 is communicated with the discharging end of the powder ore bin 5, the discharging end of the rod mill 6 is communicated with the second sieving machine 7, the discharging end of the second sieving machine 7 is communicated with the feeding end of the magnetic separator 8, the non-magnetic discharging end of the magnetic separator 8 is communicated with the spiral chute, and the magnetic discharging end of the magnetic separator 8 is communicated with a first collecting tank 9 for containing magnetic selected mechanical iron and magnetite;
the spiral chute comprises a first spiral chute 10 and a second spiral chute 15, wherein the concentrate discharge end of the first spiral chute 10 is communicated with the spiral classifier, the middling discharge end of the first spiral chute 10 is communicated with the second spiral chute 15, and the tailing discharge end of the first spiral chute 10 is communicated with a second collecting tank 16 for containing tailings;
the concentrate discharge end of the second spiral chute 15 is communicated with a spiral classifier, the middling discharge end of the second spiral chute 15 is communicated with a third collecting tank 17 for containing the magnetic spodumene, and the tailing discharge end of the second spiral chute 15 is communicated with a second collecting tank 16;
the coarse ore discharging end of the spiral classifier is communicated with a fourth collecting tank 14 for containing garnet, the fine ore discharging end of the spiral classifier is communicated with a fine ore reprocessing device, the fine ore reprocessing device comprises a third spiral chute 18, and the fine discharging end of the third spiral chute 18 is communicated with a second collecting tank 16; the coarse discharge end of the third spiral chute 18 is communicated with a third sieving machine 19, the coarse discharge end of the third sieving machine 19 is communicated with a fourth collecting tank 14, and the fine discharge end of the third sieving machine 19 is communicated with a fifth collecting tank 21 for containing fine sand.
The spiral classifier comprises a first spiral classifier 11, a second spiral classifier 12 and a third spiral classifier 13, wherein the feeding end of the first spiral classifier 11 is communicated with the concentrate discharging end of the first spiral chute 10, the coarse material discharging end of the first spiral classifier 11 is communicated with the feeding end of the second spiral classifier 12, the coarse material discharging end of the second spiral classifier 12 is communicated with the feeding end of the third spiral classifier 13, the coarse material discharging end of the third spiral classifier 13 is communicated with the fourth collecting tank 14, and the fine material discharging ends of the first spiral classifier 11, the second spiral classifier 12 and the third spiral classifier 13 are communicated with the feeding end of the third spiral chute 18; the concentrate discharge end of the second spiral chute 15 communicates with the feed end of the second spiral classifier 12.
A water washing and filtering device 20 is further communicated between the coarse material discharging end of the third sieving machine 19 and the fourth collecting tank 14, and the water washing and filtering device 20 adopts a filter in the prior art and can perform water washing and filtering.
The garnet efficient washing and selecting process includes crushing and grinding garnet-containing raw ore, magnetically separating the ground raw ore, and separating out mechanical iron and magnetite; and then, carrying out gravity separation and grading gravity separation on the raw ore subjected to magnetic separation, and separating tailings containing impurities such as silt and the like to obtain the finished ore containing garnet.
The specific steps of the process are as follows:
(1) Crushing raw ore containing garnet by using a crusher, namely crushing the raw ore by using a jaw crusher, crushing the crushed raw ore by using a cone crusher, screening the crushed raw ore by using a vibrating screen, crushing the raw ore with larger particles again by using the cone crusher until the raw ore accords with the screening size, and conveying the raw ore qualified by screening to a powder ore bin for storage;
the jaw crusher comprises a crushing cavity formed by two jaw plates of a movable jaw and a static jaw, and is a crusher which simulates the movement of the two jaws of an animal to finish the crushing operation of the materials, has large crushing ratio and uniform granularity, is used for coarsely crushing raw ores and reduces the crushing pressure of a subsequent cone crusher;
the cone crusher mainly comprises a frame, a horizontal shaft, a movable cone, a balance wheel, an eccentric sleeve, an upper crushing wall (fixed cone), a lower crushing wall (movable cone), a hydraulic coupler, a lubricating system and a hydraulic system, wherein the interior of the cone crusher is provided with a regulator, so that the size of the granularity of the crushing discharge can be quickly regulated, and the cone crusher is used for finely crushing crude ores after coarse crushing, thereby facilitating subsequent rod grinding;
the vibrating screen works by utilizing reciprocating rotary vibration generated by vibrator excitation, and the vibrating screen is a mining vibrating screen and is used for detecting finely crushed raw ores and guaranteeing finely crushed quality;
(2) Outputting the raw ore in the powder ore bin outwards, grinding the raw ore by a rod mill at a colleague conveying the raw ore, screening the grinded raw ore by a classifying screen, and returning the unqualified screening part to the rod mill for secondary grinding and screening until the screening is qualified;
the rod mill is a mill with steel rods as the grinding bodies loaded in the cylinder, has uniform discharge and high efficiency, is used for grinding finely crushed raw ores and is convenient for the subsequent sorting of the raw ores;
the classifying screen is mechanical equipment for classifying materials by utilizing vibration generated by a vibrating motor and a spring, so that the materials have larger kinetic energy and inertia, a self-cleaning effect can be formed, and the classifying screen has the characteristics of small volume, convenient operation, reliable work and the like, and is used for detecting the ground raw ore and ensuring the grinding quality;
(3) Wet magnetic separation is carried out on the raw ore which is qualified by screening, a wet magnetic separator is adopted to carry out magnetic separation on the raw ore, mechanical iron and magnetite in the raw ore are screened out, and the rest raw ore is conveyed to a spiral chute for gravity separation, so as to obtain primary concentrate, primary middling and primary tailings;
wet magnetic separators are commonly used iron ore equipment (iron ore magnetic separators) and manganese ore equipment (manganese ore magnetic separators), and are main-stream strong magnetic separator mineral separation equipment;
the spiral chute is equipment integrating the characteristics of the spiral concentrator, the spiral chute, the shaking table and the centrifugal concentrator, so that the equipment has the advantages of stable and easily controlled separation process, large allowable variation range of ore concentration, high enrichment ratio and high recovery rate, and the working characteristics of the spiral chute are that the tail ends in the chute are respectively used for intercepting the concentrate, the medium tailings and the wash water is not added in the separation process;
the concentrate re-selected in this step mainly contains garnet; the middlings mainly contain spodumene, and the tailings mainly contain impurities such as silt, wheat stone and the like;
(4) The primary concentrate is sent into a spiral classifier for classification and reselection, three times of classification and reselection are continuously carried out, coarse ore and fine ore are generated by classification and reselection, the obtained coarse ore is finished ore containing garnet, the obtained fine ore is sent into a spiral chute for reselection, coarse ore and tailings are obtained by reselection, the obtained coarse ore is sieved by a high-frequency vibration fine sieve, coarse ore and fine ore are obtained by sieving, the obtained coarse ore is finished ore containing garnet, and fine ore obtained by sieving is discharged; discharging the tailings after the gravity separation;
the spiral classifier is one of ore dressing equipment, and is used for mechanically classifying by means of the principle that the solid particles have different specific gravities and therefore different sedimentation speeds in liquid, so that the concentrate containing garnet is subjected to multiple classification and reselection, and the purity of the finished ore is ensured;
the high-frequency vibrating fine screen is characterized in that two electric vibrators with opposite moving directions drive a screen frame to do linear movement, resultant force of the two electric vibrators acting on the screen frame passes through the gravity center of the screen frame, exciting forces of points on the screen frame are consistent, the processing capacity is high, the screening efficiency is high, and fine ores can be conveniently screened out; filtering the screened coarse ores by a water washing and filtering device, and filtering out water contained in the coarse ores;
(5) The primary middlings are sent into a spiral chute again for re-selection to obtain secondary concentrate, secondary middlings and secondary tailings, the secondary concentrate is sent into a spiral classifier for grading re-selection after being mixed with the primary concentrate, the secondary concentrate can be directly mixed with the primary concentrate for re-selection, and can also be mixed with the concentrate after the primary re-selection for re-selection, and the re-selection quality is ensured; the middlings mainly contain spodumene, and the tailings mainly contain impurities such as silt, wheat stone and the like;
in the step (4), the primary concentrate is sent into a spiral classifier for three-time classification and reselection; and (5) mixing the primary middlings with the primary concentrates which are subjected to primary grading reselection in the step (4), and continuing to perform secondary grading reselection together with the primary concentrates.
(6) Discharging the primary tailings, the secondary tailings and the tailings obtained by the reselection in the step (4) together, wherein the tailings contain impurities such as silt and wheat stone.
The whole process basically has water flow involved in garnet separation, the water flow has the functions of assisting raw ore in moving and cleaning, and more importantly, the ore and the sand are separated by the gravity and the centrifugal force of the water flow rotational flow, so that the purpose of ore dressing is achieved; the output garnet-containing finished ore also has certain humidity, can be dried subsequently and is sorted with higher precision.
Claims (10)
1. The utility model provides a garnet high-efficient washing selection device which characterized in that: the device comprises a production line for processing raw ores containing garnet, wherein the production line is provided with a first crusher, a first screening machine, a powder ore bin, a rod mill, a second screening machine, a magnetic separator, a spiral chute and a spiral classifier;
the feeding end of the first screening machine is communicated with the discharging end of the first crusher, the fine material discharging end of the first screening machine is communicated with the powder ore bin, the coarse material discharging end of the first screening machine is communicated with the second crusher, and the discharging end of the second crusher is communicated with the feeding end of the first screening machine;
the feeding end of the rod mill is communicated with the discharging end of the powder ore bin, the discharging end of the rod mill is communicated with the second sieving machine, the discharging end of the second sieving machine is communicated with the feeding end of the magnetic separator, the non-magnetic discharging end of the magnetic separator is communicated with the spiral chute, and the magnetic discharging end of the magnetic separator is communicated with a first collecting tank for containing magnetic selected mechanical iron and magnetite;
the spiral chute comprises a first spiral chute and a second spiral chute, the concentrate discharge end of the first spiral chute is communicated with the spiral classifier, the middling discharge end of the first spiral chute is communicated with the second spiral chute, and the tailing discharge end of the first spiral chute is communicated with a second collecting tank for containing tailings;
the concentrate discharge end of the second spiral chute is communicated with the spiral classifier, the middling discharge end of the second spiral chute is communicated with a third collecting tank for containing the magnetic spodumene, and the tailing discharge end of the second spiral chute is communicated with the second collecting tank;
the coarse ore discharging end of the spiral classifier is communicated with a fourth collecting groove for containing garnet, the fine ore discharging end of the spiral classifier is communicated with a fine ore reprocessing device, the fine ore reprocessing device comprises a third spiral chute, and the fine discharging end of the third spiral chute is communicated with the second collecting groove; the coarse discharge end of the third spiral chute is communicated with a third screening machine, the coarse discharge end of the third screening machine is communicated with a fourth collecting tank, and the fine discharge end of the third screening machine is communicated with a fifth collecting tank for containing fine sand.
2. The garnet efficient washing and selecting device according to claim 1, wherein: the spiral classifier comprises a first spiral classifier, a second spiral classifier and a third spiral classifier, wherein the feeding end of the first spiral classifier is communicated with the concentrate discharging end of the first spiral chute, the coarse material discharging end of the first spiral classifier is communicated with the feeding end of the second spiral classifier, the coarse material discharging end of the second spiral classifier is communicated with the feeding end of the third spiral classifier, the coarse material discharging end of the third spiral classifier is communicated with the fourth collecting tank, and the fine material discharging ends of the first spiral classifier, the second spiral classifier and the third spiral classifier are all communicated with the feeding end of the third spiral chute; the concentrate discharge end of the second spiral chute is communicated with the feed end of the second spiral classifier.
3. The garnet efficient washing and selecting device according to claim 1, wherein: and a washing and filtering device is also communicated between the coarse material discharge end of the third screening machine and the fourth collecting tank.
4. The garnet efficient washing and selecting device according to claim 1, wherein: the first crusher comprises a jaw crusher and a cone crusher which are sequentially communicated, and the second crusher is a cone crusher.
5. A garnet efficient washing and selecting process is characterized in that: the process adopts the garnet efficient washing and selecting device as claimed in any one of claims 1 to 4 for washing and selecting, and comprises the following steps: crushing and grinding raw ore containing garnet, and then carrying out magnetic separation on the ground raw ore to separate out mechanical iron and magnetite; and then, carrying out gravity separation and grading gravity separation on the raw ore subjected to magnetic separation, and separating tailings containing impurities such as silt and the like to obtain the finished ore containing garnet.
6. The garnet efficient washing process according to claim 5, characterized in that: the specific steps of the process are as follows:
(1) Crushing raw ore containing garnet by using a crusher, screening the crushed raw ore by using a vibrating screen, returning the raw ore with larger particles to the crusher for crushing again until the raw ore accords with the screening size, and conveying the raw ore qualified by screening to a powder ore bin for storage;
(2) Outputting raw ore in the powder ore bin outwards, grinding by a rod mill, screening the grinded raw ore by a classifying screen, and returning unqualified screening parts to the rod mill for secondary grinding and screening until screening is qualified;
(3) Wet magnetic separation is carried out on the raw ore which is qualified in screening, mechanical iron and magnetite in the raw ore are screened out, and the rest raw ore is conveyed to a spiral chute for reselection, so that primary concentrate, primary middling and primary tailings are obtained;
(4) Feeding the primary concentrate into a spiral classifier for classification and reselection to obtain coarse ore, namely finished ore containing garnet, feeding the obtained fine ore into a spiral chute for reselection, reselecting the obtained coarse ore, screening the obtained coarse ore, namely finished ore containing garnet, and discharging tailings left after reselection;
(5) The primary middlings are sent into a spiral chute again for re-selection to obtain secondary concentrate, secondary middlings and secondary tailings, the secondary concentrate is sent into a spiral classifier again for classification re-selection to obtain coarse ores, namely finished ores containing garnet; respectively discharging middlings and tailings;
(6) And discharging the primary tailings.
7. The garnet efficient washing process according to claim 5, characterized in that: in the step (1), a jaw crusher and a cone crusher are adopted to crush the raw ore twice, and the raw ore which is unqualified by screening through a vibrating screen is crushed again by the cone crusher.
8. The garnet efficient washing process according to claim 5, characterized in that: in the step (4), the primary concentrate is sent into a spiral classifier for three-time classification and reselection; and (5) mixing the primary middlings with the primary concentrates which are subjected to primary grading reselection in the step (4), and continuing to perform secondary grading reselection together with the primary concentrates.
9. The garnet efficient washing process according to claim 5, characterized in that: and (3) carrying out reselection and screening on the fine ore obtained in the step (4), and then carrying out filtering treatment.
10. The garnet efficient washing process according to claim 5, characterized in that: and (3) screening the obtained fine ores in the step (4) by adopting a high-frequency vibration fine screen.
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| CN112517236A (en) * | 2020-11-23 | 2021-03-19 | 连云港金红矿业有限公司 | Garnet concentrate recleaning process |
| CN114534904A (en) * | 2022-01-28 | 2022-05-27 | 江苏金红新材料股份有限公司 | Beneficiation method for fine-grain embedded garnet ore |
| CN114405660A (en) * | 2022-01-28 | 2022-04-29 | 江苏金红新材料股份有限公司 | Ore grinding process capable of reducing excessive crushing of product |
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