CN109772576B - Method for fully utilizing gold tailings - Google Patents
Method for fully utilizing gold tailings Download PDFInfo
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- CN109772576B CN109772576B CN201910080802.0A CN201910080802A CN109772576B CN 109772576 B CN109772576 B CN 109772576B CN 201910080802 A CN201910080802 A CN 201910080802A CN 109772576 B CN109772576 B CN 109772576B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000010931 gold Substances 0.000 title claims abstract description 20
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 86
- 229910052742 iron Inorganic materials 0.000 claims abstract description 42
- 239000012141 concentrate Substances 0.000 claims abstract description 37
- 239000004576 sand Substances 0.000 claims abstract description 37
- 238000005188 flotation Methods 0.000 claims abstract description 36
- 239000002002 slurry Substances 0.000 claims abstract description 33
- 238000000227 grinding Methods 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 69
- 239000000919 ceramic Substances 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 26
- 239000006148 magnetic separator Substances 0.000 claims description 17
- 239000000377 silicon dioxide Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 239000012991 xanthate Substances 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 239000002562 thickening agent Substances 0.000 claims description 5
- IZBZQUREHISXFJ-UHFFFAOYSA-N 2-[4-chloro-5-methyl-3-(trifluoromethyl)pyrazol-1-yl]acetic acid Chemical compound CC1=C(Cl)C(C(F)(F)F)=NN1CC(O)=O IZBZQUREHISXFJ-UHFFFAOYSA-N 0.000 claims description 4
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 4
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000007885 magnetic separation Methods 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000006249 magnetic particle Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
The invention relates to a method for fully utilizing gold tailings, which comprises the steps of concentrating a part of multielement tailings by a concentration cyclone, conveying a bottom flow part to a ball mill for grinding, and then entering a flotation machine for flotation to extract iron ore concentrate; the overflow of the concentration cyclone and part of the tailings extracted by multiple elements simultaneously enter a multistage desliming hopper, the underflow processed by the desliming hopper enters a drum screen, one part of oversize products of the drum screen is used for building sand, the other part of the oversize products is also conveyed to a ball mill for grinding, and iron ore concentrate is extracted by flotation of a flotation machine; conveying the overflow part treated by the multistage desliming hopper, undersize treated by the drum screen and tailings treated by the flotation machine to a spiral launder by a slurry pump, carrying out secondary enrichment on the underflow enriched ore treated by the spiral launder by an iron ore concentrate enrichment machine, and taking the underflow enriched ore treated by the iron ore concentrate enrichment machine as iron ore concentrate; the invention aims to solve the problems of incomplete resource extraction, resource waste and the like in the traditional gold tailing treatment method.
Description
Technical Field
The invention belongs to the field of gold tailing treatment methods, and particularly relates to a method for fully utilizing gold tailings.
Background
The continuous development and utilization of various mineral resources greatly promote the economic development, but also cause various milltailings which are piled up in trillions of tons in various places to occupy large areas of land and become one of environmental pollution. These tailings, while deposited as waste at the time, were tested to contain significant amounts of valuable components in such large quantities of waste. With the progress and development of the technology and the increasingly depleted mineral resources, the grade of the selected raw mineral is lower and lower, and the grade of some raw mineral is close to or even lower than the useful components in the tailings, so that whether the tailings can be used as a replacing resource or the mine tailings can be developed and utilized as a secondary resource has attracted high attention of people, and particularly, the process of recycling the mine tailings is quickened at the present day when the price of non-ferrous metals is increased, and the modern dressing and smelting technology, particularly fine grain dressing and low-content metal material smelting technology, is greatly improved.
In the prior art, a method for further treating and recycling tailings is available, but the problems of incomplete treatment and insufficient resource extraction generally exist, for example, patent numbers "CN 201711180374.6" and patent names "a method for completely utilizing gold tailings", the working process is shown in fig. 1, multi-element tailings are further treated to obtain three substances, namely raw materials for producing external wall panels, special mortar and aerated bricks, but the obtained raw materials for producing special mortar contain more iron and other components, the obtained raw materials for producing aerated bricks contain more silica, and the substances contained in the raw materials do not have beneficial effects on the obtained raw materials, so that the problems of insufficient extraction, resource waste and the like are caused.
Disclosure of Invention
The invention provides a method for fully utilizing gold tailings, aiming at improving the problems of incomplete resource extraction, resource waste and the like in the traditional gold tailing treatment method.
The specific technical scheme is as follows:
a method for fully utilizing gold tailings comprises the following steps:
A. concentrating a part of tailings extracted by a multi-element workshop by using a concentration cyclone, and dividing the treated tailings into an underflow part and an overflow part, wherein the underflow part is conveyed to a ball mill for grinding, and then is added with xanthate and flotation oil and then enters a flotation machine for flotation to extract iron ore concentrate;
B. the overflow part treated by the concentration cyclone and the tailings extracted by the other part through a multi-element workshop simultaneously enter a multi-stage desliming hopper for treatment, the treated tailings are divided into an underflow part and an overflow part, the underflow part treated by the desliming hopper directly enters a drum screen, one part of oversize products of the drum screen is directly used for building sand, and the other part of the oversize products is also conveyed to a ball mill for grinding and is subjected to flotation by a flotation machine to extract iron ore concentrate;
C. conveying the overflow part treated by the multistage desliming bucket, undersize treated by the drum screen and tailings treated by the flotation machine to a spiral chute through a slurry pump for treatment, dividing the treated underflow part into an underflow part and an overflow part, carrying out secondary enrichment treatment on underflow enriched ore treated by the spiral chute through an iron ore concentrate enrichment machine, dividing the treated underflow part into the underflow part and the overflow part, and obtaining the underflow part treated by the iron ore concentrate enrichment machine as iron ore concentrate;
D. the overflow processed by the spiral chute and the iron ore concentrate enrichment machine is processed by a sand washer and then processed by a grader, and then divided into an underflow part and an overflow part, wherein the underflow part processed by the sand washer and the grader is machine-made sand;
E. the overflow part treated by the classifier is conveyed to a ceramic raw material system through a slurry pump, the overflow part is treated by a multi-stage desliming bucket and then divided into an underflow part and an overflow part, and the treated underflow part enters two flat-plate magnetic separators to be connected in series to extract iron ore concentrate;
F. the extracted slurry is conveyed to a high-gradient magnetic separator and two series-connected slurry machines for treatment to obtain an underflow part and an overflow part, then the underflow part is conveyed to a spiral chute, and the overflow part treated by the high-gradient magnetic separator, the slurry machine and the spiral chute is returned to the classifier through a slurry pump to be conveyed to the classifier for sand production.
Preferably, the machine-made sand prepared in the step D is dried by a drying furnace, conveyed to a charging bucket, conveyed to a drum sieve layer by a belt to be sieved, sieved to obtain machine-made sand of various types, conveyed to a storage bin by a lifter and a belt, and packaged into finished products.
Preferably, in the step F, the refined material processed by the spiral chute is dehydrated by a dehydration bucket and is dehydrated again by a vacuum belt filter, so that the ceramic raw material is obtained.
Preferably, the overflow part treated by the multistage desliming bucket in the step E enters a high-efficiency desliming tank for treatment, the treated overflow part is divided into an underflow part and an overflow part, a silicon dioxide extracting agent is added into the underflow part and then the underflow part is conveyed to a flotation machine for extracting silicon dioxide, and the overflow treated by the high-efficiency desliming tank is clean water.
Preferably, the slurry obtained after the silica is extracted in the step E is conveyed to a deep cone thickener for concentration, one part of the slurry is directly used for producing aerated bricks, and the other part of the slurry is extracted by a ceramic filter to obtain a glass raw material.
Preferably, the content of the xanthate and the flotation oil added in the step A is 24-26 g of xanthate and 19-20 g of flotation oil added in each ton of tailings.
Preferably, the mesh of the sand washer in the step D is 60 meshes, and the mesh of the drum screen in the step B is 40 meshes.
Preferably, the silica extractant includes dodecylamine hydrochloride, sodium oleate, and sodium hexametaphosphate.
The invention has the beneficial effects that:
1. the invention comprises the technical scheme that a part of tailings extracted by a multielement workshop is concentrated by a concentration cyclone and divided into an underflow part and an overflow part after treatment, wherein the underflow part is conveyed to a ball mill for grinding, and then is added with xanthate and flotation oil and then is fed into a flotation machine for flotation to extract iron ore concentrate; the method can extract iron ore concentrate from tailings, so that the multielement tailings can be fully utilized.
2. The invention comprises the technical scheme that the overflow part treated by a classifier is conveyed to a ceramic raw material system through a slurry pump, the overflow part is treated by a multi-stage desliming bucket, and the treated bottom flow enters a flat magnetic separator and two sets of magnetic separators which are connected in series to extract iron ore concentrate; the method can fully extract the iron ore concentrate in the tailings, and because iron element in the subsequently extracted ceramic raw material can blacken, the method can also pretreat the ceramic raw material, eliminate the iron element in the ceramic raw material and improve the quality of the ceramic raw material.
3. The invention comprises the technical scheme that slurry after iron ore concentrate is extracted by a flat magnetic separator is conveyed to a high-gradient magnetic separator and is treated in series by a slurry machine, then is conveyed to a spiral chute, and an overflow part treated by the high-gradient magnetic separator, a slurry machine and the spiral chute is returned to a classifier through a slurry pump and is conveyed to a classifier for extracting machine-made sand; the method can fully extract the machine-made sand in the tailings, and the high-gradient magnetic separator, the slurry machine and the spiral chute can be used for pretreating the ceramic raw materials for subsequent production, so that iron elements are extracted, the ceramic raw materials are prevented from blackening, and the quality of the ceramic raw materials is improved.
4. The invention comprises the technical scheme that the refined material processed by the spiral chute is dehydrated by a dehydration bucket and is dehydrated again by a vacuum belt filter to obtain the ceramic raw material; the method can extract the ceramic raw material from the multi-element tailings, so that the multi-element tailings are fully utilized, and the utilization rate of resources is enhanced.
5. The invention comprises the technical scheme that the overflow part treated by a multistage desliming bucket enters a high-efficiency desliming tank for treatment, the treated overflow part is divided into an underflow part and an overflow part, and a silicon dioxide extracting agent is added into the underflow part and then the underflow part is conveyed to a flotation machine for extracting silicon dioxide; the method can extract silicon dioxide from the multi-element tailings, so that the multi-element tailings are fully utilized, and the utilization rate of resources is enhanced.
6. The invention comprises the technical scheme that slurry extracted by a flotation machine is conveyed to a deep cone thickener for concentration, one part of the slurry is directly used for producing aerated bricks, and the other part of the slurry is extracted by a ceramic filter to obtain glass raw materials; the method can extract the glass raw material and the aerated brick without silicon dioxide from the multi-element tailings, so that the multi-element tailings are fully utilized, and the utilization rate of resources is enhanced.
Drawings
FIG. 1 is a flow chart of the background art;
fig. 2 is a flow chart of fully utilizing gold tailings.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 2, the invention relates to a method for fully utilizing gold tailings, which mainly comprises the following steps:
A. and concentrating a part of the tailings extracted by the multi-element workshop by using a concentrating cyclone, wherein the concentrating cyclone separates coarse and heavy parts from low-specific-gravity parts in the multi-element tailings by rotating, the coarse and heavy parts are underflow parts, and the low-specific-gravity parts are overflow parts. And the underflow part is conveyed to a ball mill for grinding. The ball mill comprises a horizontal barrel, a feeding and discharging hollow shaft, a grinding head and the like, wherein a grinding body is arranged in the barrel, when the ball mill barrel rotates, the grinding body is attached to a barrel lining plate and taken away by the barrel under the action of inertia and centrifugal force and friction force, and when the grinding body is taken to a certain height, the grinding body is thrown off under the action of gravity of the grinding body, and the falling grinding body breaks materials in the barrel like a projectile. And adding 24-26 g of xanthate and 19-20 g of flotation oil into each ton of tailings ground by the ball mill, and then feeding the tailings into a flotation machine for flotation to extract iron ore concentrate. The flotation machine is rotated by a motor triangle instead of a driving belt impeller to generate centrifugal action to form negative pressure, on one hand, sufficient air is sucked to be mixed with ore pulp, on the other hand, the ore pulp is stirred to be mixed with the medicine, and simultaneously, foam is refined, so that minerals are adhered to the foam and float to the surface of the ore pulp to form mineralized foam. And adjusting the height of the flashboard, controlling the liquid level, and scraping useful foams by a scraper blade to extract iron ore concentrate.
B. And simultaneously feeding the overflow of the concentration cyclone and part of the tailings extracted by multiple elements into a multistage desliming hopper, and performing primary-stage dehydration precipitation on the tailings by using the sedimentation principle. The underflow part treated by the desliming bucket directly enters a drum screen, a screen mesh is arranged in the drum screen, the screen mesh hole of the screen mesh is 40 meshes, oversize matters of the drum screen can directly become building sand, the other part of the oversize matters can also be conveyed to a ball mill for grinding, and iron ore concentrate is extracted by flotation of a flotation machine.
C. And the overflow part processed by the multistage desliming hopper, undersize processed by the drum screen and tailings processed by the flotation machine are all conveyed to a spiral chute by a slurry pump, the spiral chute processes input materials by using a centrifugal principle and then divides the processed materials into an underflow part and an overflow part, and underflow enriched ore processed by the spiral chute is secondarily enriched by an iron ore concentrate enriching machine. The iron ore concentrate enriching machine is also called a shaking table, and can generate asymmetric reciprocating motion, so that ore particles can move along different directions according to different densities and particle sizes, and spread in a fan shape along a diagonal line from an ore feeding groove, and are discharged along the edge of a bed surface in sequence, and iron ore concentrate can be accurately produced. And the underflow enrichment ore treated by the iron ore concentrate enrichment machine is the iron ore concentrate.
D. The overflow that spiral chute and iron ore concentrate enrichment machine were handled is then handled through sand washer earlier, handles through the grader again, be provided with the screen cloth in the sand washer, the screen cloth mesh of screen cloth is 60 meshes, and it carries out the further screening to the overflow portion of iron ore concentrate enrichment machine, and wherein the underflow of sand washer directly becomes mechanism sand, and the overflow portion of sand washer is carried to the grader. The classifier rotates spirally to further separate the overflow part of the sand washer, and the underflow part of the sand washer directly becomes machine-made sand.
E. The overflow portion after the grader is handled then carries to ceramic raw materials system through the sediment stuff pump, and at first the overflow portion is handled through multistage desliming fill, and the underflow after the processing then gets into two series connection of flat magnetic separator and draws the iron ore concentrate, be equipped with magnetic separation mechanism in the frame of flat magnetic separator, can make the mineral aggregate of whereabouts distribute on magnetic separation mechanism uniformly, can not pile up the blocking, the mineral aggregate can both realize the upset along with the change of magnetic pole at the in-process of magnetic separation to improve the precision of iron ore concentrate purification.
F. The extracted slurry is conveyed to a high-gradient magnetic separator and a slurry machine in series for treatment, then conveyed to a spiral chute, and the overflow part treated by the high-gradient magnetic separator, the slurry machine and the spiral chute is returned to a classifier through a slurry pump for sand making. The high-gradient magnetic separator is used for extracting iron-containing components, a magnetic separation mechanism and a rotating ring are arranged in the high-gradient magnetic separator, the rotating ring rotates clockwise, ore pulp is fed from an ore feeding hopper, flows through the rotating ring along an upper iron yoke gap, magnetic particles in the ore pulp are adsorbed on the surface of a magnetic medium, the magnetic particles are brought to the top by the rotating ring and are flushed into a concentrate hopper, and the non-magnetic particles flow into a tailing hopper along a lower iron yoke gap and are taken away. And a magnetic separation mechanism is arranged in the slurry machine, and the magnetic field is utilized to suck away the iron-containing substances.
G. The refined material treated by the spiral chute is dehydrated by a dehydration bucket and is dehydrated again by a vacuum belt filter, thus obtaining the ceramic raw material. The dehydration bucket utilizes the principle of sedimentation to dehydrate. The vacuum belt filter adopts a fixed vacuum box, the adhesive tape slides on the vacuum box, a motion sealing structural type is formed between the vacuum box and the adhesive tape, and solid-liquid separation is realized by taking vacuum negative pressure as a driving force.
H. And D, drying the machine-made sand prepared in the step D by a drying furnace, conveying the machine-made sand to a material tank, conveying the machine-made sand to a drum screen layer by a belt, screening the machine-made sand of various types, conveying the machine-made sand to a storage bin by a lifter and a belt, and packaging finished products.
I. And E, enabling the overflow part treated by the multistage desliming bucket in the step E to enter a high-efficiency desliming tank for treatment, and performing dehydration precipitation on the slurry by using the sedimentation principle in the high-efficiency desliming tank. The treated tailings are divided into an underflow part and an overflow part, a silica extraction agent is added into the underflow part and then conveyed to a flotation machine for extracting silica, wherein the silica extraction agent comprises 480 g of dodecylamine hydrochloride, 320 g of sodium oleate and 1500 g of sodium hexametaphosphate which are added into each ton of tailings, the dodecylamine hydrochloride is used as a collecting agent, the sodium oleate is used as a feldspar active agent, and the sodium hexametaphosphate is used as a quartz inhibitor; the overflow treated by the high-efficiency desliming tank is clean water.
J. And (3) conveying the extracted slurry to a deep cone thickener for concentration, wherein one part is directly used for producing aerated bricks, and the other part is extracted by a ceramic filter to obtain a glass raw material. The deep cone thickener is a solid-liquid separation device based on gravity settling effect. The ceramic filter works based on the action principle of capillary micropores, microporous ceramics are used as a filter medium, a large amount of narrow solid-liquid separation equipment designed according to the capillary action principle is utilized, the disc filter is in a negative pressure working state, the unique water-permeable and airtight characteristics of the microporous ceramic filter plate are utilized, the vacuum generated in the inner cavity of the ceramic filter plate is extracted to form pressure difference with the outside, materials suspended in the material tank are adsorbed on the ceramic filter plate under the action of negative pressure, the solid materials are intercepted on the surface of the ceramic plate due to the fact that the solid materials cannot pass through the microporous ceramic filter plate, and liquid smoothly enters the gas-liquid distribution device to be discharged or recycled due to the action of the vacuum pressure difference and the hydrophilicity of the ceramic filter plate, so that the purpose.
The terms of orientation such as front, back, left, right, up and down are set to clearly indicate the requirement of the technical solution, and do not limit the scope of the invention.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (8)
1. A method for fully utilizing gold tailings is characterized by comprising the following steps:
A. concentrating a part of tailings extracted by a multi-element workshop by using a concentration cyclone, and dividing the treated tailings into an underflow part and an overflow part, wherein the underflow part is conveyed to a ball mill for grinding, and then is added with xanthate and flotation oil and then enters a flotation machine for flotation to extract iron ore concentrate;
B. the overflow part treated by the concentration cyclone and the tailings extracted by the other part through a multi-element workshop simultaneously enter a multi-stage desliming hopper for treatment, the treated tailings are divided into an underflow part and an overflow part, the underflow part treated by the desliming hopper directly enters a drum screen, one part of oversize products of the drum screen is directly used for building sand, and the other part of the oversize products is also conveyed to a ball mill for grinding and is subjected to flotation by a flotation machine to extract iron ore concentrate;
C. conveying the overflow part treated by the multistage desliming bucket, undersize treated by the drum screen and tailings treated by the flotation machine to a spiral chute through a slurry pump for treatment, dividing the treated underflow part into an underflow part and an overflow part, carrying out secondary enrichment treatment on underflow enriched ore treated by the spiral chute through an iron ore concentrate enrichment machine, dividing the treated underflow part into the underflow part and the overflow part, and obtaining the underflow part treated by the iron ore concentrate enrichment machine as iron ore concentrate;
D. the overflow processed by the spiral chute and the iron ore concentrate enrichment machine is processed by a sand washer and then processed by a grader, and then divided into an underflow part and an overflow part, wherein the underflow part processed by the sand washer and the grader is machine-made sand;
E. the overflow part treated by the classifier is conveyed to a ceramic raw material system through a slurry pump, the overflow part is treated by a multi-stage desliming bucket and then divided into an underflow part and an overflow part, and the treated underflow part enters two flat-plate magnetic separators to be connected in series to extract iron ore concentrate;
F. the extracted slurry is conveyed to a high-gradient magnetic separator and two machines which are connected in series for treatment and a slurry machine for treatment to obtain an underflow part and an overflow part, then the underflow part is conveyed to a spiral chute, and the treated overflow part is conveyed back to a classifier for sand making through a slurry pump.
2. The method for fully utilizing gold tailings as claimed in claim 1, wherein the method comprises the following steps: and D, drying the machine-made sand prepared in the step D by a drying furnace, conveying the machine-made sand to a material tank, conveying the machine-made sand to a drum screen layer by a belt, screening the machine-made sand of various types, conveying the machine-made sand to a storage bin by a lifter and a belt, and packaging finished products.
3. The method for fully utilizing gold tailings as claimed in claim 1, wherein the method comprises the following steps: and F, dehydrating the refined material treated by the spiral chute in the step F by a dehydration bucket, and dehydrating again by a vacuum belt filter to obtain the ceramic raw material.
4. The method for fully utilizing gold tailings as claimed in claim 1, wherein the method comprises the following steps: and E, enabling the overflow part treated by the multistage desliming bucket in the step E to enter a high-efficiency desliming tank for treatment, dividing the treated overflow part into an underflow part and an overflow part, adding a silicon dioxide extracting agent into the underflow part, conveying the underflow part to a flotation machine for extracting silicon dioxide, and obtaining the overflow treated by the high-efficiency desliming tank as clear water.
5. The method for fully utilizing gold tailings of claim 4, wherein the method comprises the following steps: and E, conveying the slurry obtained after the silicon dioxide is extracted in the step E to a deep cone thickener for concentration, wherein one part is directly used for producing aerated bricks, and the other part is extracted by a ceramic filter to obtain a glass raw material.
6. The method for fully utilizing gold tailings as claimed in claim 1, wherein the method comprises the following steps: the content of the xanthate and the flotation oil added in the step A is that 24-26 g of xanthate and 19-20 g of flotation oil are added into each ton of tailings.
7. The method for fully utilizing gold tailings as claimed in claim 1, wherein the method comprises the following steps: and D, the screen hole of the sand washer in the step D is 60 meshes, and the screen hole of the drum screen in the step B is 40 meshes.
8. The method for fully utilizing gold tailings of claim 4, wherein the method comprises the following steps: the silicon dioxide extracting agent comprises dodecylamine hydrochloride, sodium oleate and sodium hexametaphosphate.
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| CN109894259B (en) * | 2019-04-04 | 2020-09-18 | 山东华特磁电科技股份有限公司 | Comprehensive utilization method of gold tailings containing gold, iron and feldspar |
| CN113856890B (en) * | 2021-08-31 | 2022-09-20 | 中国矿业大学 | Resource comprehensive utilization system and method for gold ore associated minerals |
| CN117160872A (en) * | 2023-08-15 | 2023-12-05 | 碳达(深圳)新材料技术有限责任公司 | Continuous separation method of coal gasification coarse slag |
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| US4360380A (en) * | 1980-09-09 | 1982-11-23 | World Resources Company | Process for recovery of metal values from sludges |
| CN102399993B (en) * | 2011-11-03 | 2013-05-01 | 山东恒邦冶炼股份有限公司 | Method for treating waste residue from wet method gold smelting |
| CN103212478A (en) * | 2013-03-05 | 2013-07-24 | 安徽金日盛矿业有限责任公司 | Floating magnetic combined ore dressing process for recovering mica from iron ore mill tailings |
| CN103433124B (en) * | 2013-09-18 | 2015-04-29 | 江西理工大学 | Process for comprehensively recovering ferrum, molybdenum and sericite from gold concentrator tailings |
| CN103816990B (en) * | 2014-02-19 | 2016-06-29 | 哈巴河金坝矿业有限公司 | A kind of gold flotation tailing comprehensive recovering process and device thereof |
| US9682405B2 (en) * | 2014-08-23 | 2017-06-20 | Vortex Technology, Llc | Systems and methods for the environmental remediation of materials contaminated with heavy minerals |
| CN105057088A (en) * | 2015-08-10 | 2015-11-18 | 山东华晟投资有限公司 | Method for recycling quartz and feldspar mixtures from gold flotation tailings |
| CN105080706B (en) * | 2015-08-18 | 2017-07-21 | 卯伟伟 | A kind of low grade gold ore recovery process |
| CN107243494A (en) * | 2016-07-21 | 2017-10-13 | 山东九曲圣基新型建材有限公司 | A kind of method of use gold tailings waste residue sand |
| CN107321493B (en) * | 2017-07-17 | 2019-07-02 | 首钢集团有限公司 | A tailings treatment system |
| CN107876206B (en) * | 2017-11-23 | 2019-08-16 | 山东九曲圣基新型建材有限公司 | A method of full utilization gold tailings |
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