CN103071631A - Method for separating pre-concentrated copper gold by adopting X-ray radiation - Google Patents
Method for separating pre-concentrated copper gold by adopting X-ray radiation Download PDFInfo
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Abstract
The invention belongs to the technical field of mineral processing and particularly relates to a method for separating pre-concentrated copper gold by adopting X-ray radiation. The method comprises the steps as follows: crushing the copper gold to be less than 150 mm through a crushing machine; sieving the crushed material by a sieving machine with the mesh size of not less than 20 mm; feeding the sieved material onto an X-ray radiation separating machine through a feeding machine; setting a separating threshold value according to the content of copper in original mineral in a control system of the X-ray radiation separating machine; separating by the X-ray radiation separating machine; and separating out gold mineral concomitant with copper mineral to obtain gold concentrate and tailings. The method is domestically initiated, the target component of the treated mineral is low in quality, the mechanical and automatic level is high, the mineral separation cost is saved, the quality of the separated gold is greatly improved, and the utilization rate of equipment is remarkably increased; and meanwhile, the process technology is reasonable, the operation is stable, the copper gold pre-selection industrialization is facilitated, and the economic technical index and the comprehensive benefit of dressing plants are greatly increased.
Description
Technical field
The invention belongs to technical field of mineral processing, particularly a kind of method that adopts x-ray radiation sorting preenrichment copper gold.
Background technology
Gold is regarded as having first of the five metals title of " king of metal " since ancient times owing to rare, special and precious.Gold utensil has the characteristics such as the ductility of good physical attribute, stable chemical property, height and quantity rareness, being not only the special currency for finance deposit and investment, is again the important materials of the departments such as jewellery industry, electronics industry, modern communication, space flight and aviation industry simultaneously.
The gold orc deposits in China resource is abundanter, 1265 places, mining area of proved reserves, and total reserves 4265t occupies the 7th in the world, and wherein the associated gold reserves account for 27.9% of national gold mine gross reserves, and the overwhelming majority is from Copper Ores, on a small quantity from lead-zinc ore.Along with the fast development of World Economics, from the nineties in last century, the price of gold rises rapidly, gold exploitation industry enters the stage of advancing by leaps and bounds, China's gold output reached 340t in 2010, recorded high again, became the first in the world pan big country in continuous 4 years.
The content of gold in ore is extremely low, in order to extract gold from, need to be with ore reduction and levigate, and adopt beneficiation method to carry out enrichment or gold is separated, therefore need to consume a large amount of human and material resources, financial resources and energy.In order to realize saving energy and reduce the cost, improve the economic benefit of enterprise, gold ore is carried out preconcentration, rejects a part of gangue mineral and just seem extremely important.
The x-ray radiation sorting technology is the more a kind of pre-selection method of Recent study.Northeastern University had introduced an x-ray radiation separator from Russia under the support of the Ministry of Science and Technology in 2010.But this equipment can only reach 100ppm to the sorting limit minimum of purpose mineral content, has limited its application in the ore dressing of gold ore deposit.Therefore, seek the preliminary election that suitable technology realizes gold mine, use the problem of needing solution badly in gold mine preliminary election field with regard to becoming this equipment.
Summary of the invention
For the deficiencies in the prior art, the purpose of this invention is to provide a kind of copper gold stone x-ray radiation Pre-sorting method, utilize the characteristics of rusty gold and chalcopyrite symbiosis, by utilizing the x-ray radiation separator that copper gold stone raw ore is sorted in advance, with copper mineral will be with it the gold mineral of association carry out, abandon in advance part low-grade tailings or gangue, obtain relatively high-grade gold mine concentrate, to improve the concentrator equipment utilization rate, reduce and select factory's operating cost.
A kind of method that adopts x-ray radiation sorting preenrichment copper gold of the present invention, carry out according to the following steps:
(1) fragmentation: copper gold stone is crushed to below the 150mm by disintegrating machine;
(2) screening: sieve more than or equal to the screening machine of the 20mm material after to fragmentation with screen size, on-the-sieve material is transported to x-ray radiation separator preliminary election operation ore storage bin by belt conveyer;
(3) x-ray radiation separator preliminary election: the on-the-sieve material that step (2) is obtained by batcher is given on the x-ray radiation separator, in the control system of x-ray radiation separator, set the threshold value that concentrate and tailings separates according to the copper content in the raw ore, threshold range is 0.03 ~ 0.15, after process x-ray radiation separator sorts, to carry out with the gold mineral of copper mineral association, obtain Gold Concentrate under Normal Pressure and mine tailing; Wherein, threshold value enters the concentrate receiving slit greater than the ore of setting threshold, and threshold value enters the mine tailing receiving slit less than the ore of setting threshold;
(4) carry smart mine tailing: respectively the concentrate and tailings that the x-ray radiation separator separates is transported with belt conveyor system, concentrate enters and selects one treatment process under the factory, and mine tailing directly is transported to tailings reservoir for piling.
If gold grade is higher than the on-the-spot actual requirement of commercial Application in the mine tailing that obtains in the step (3), then mine tailing is transported to x-ray radiation separator ore storage bin by belt conveyor again, to separate threshold value and in 0.03 ~ 0.15 scope, get the threshold value of using less than in the step (3), again sort, make tailings grade reach requirement, then the gained concentrate is chats, and the gained mine tailing is true tailings;
Wherein, the mass content of copper is 0.02 ~ 3% in the copper gold stone described in the step (1), and the mass content of gold is 0.2 ~ 6g/t, and copper, gold are misproportion dissemination;
The main useful component of concentrate that obtains in the step (3) contains Au 3 ~ 15g/t by weight percentage, and surplus is gangue mineral;
The main useful component rate of recovery of concentrate that obtains in the step (3) is Au50 ~ 90%, and surplus is gangue mineral;
The concentrate yield that obtains in the step (3) is 15 ~ 80%, and surplus is gangue mineral.
Beneficial effect of the present invention is:
Method of the present invention is domestic initiation, the ore object composition grade of processing low, machinery and automaticity are high, save beneficiation cost, after process x-ray radiation separator is thrown tail in advance, select the selected material gold grade of factory greatly to improve, significantly improved utilization rate of equipment and installations; This technology is reasonable, stable simultaneously, is easy to realize the industrialization of copper gold preliminary election, increases substantially ore dressing plant economic and technical norms and comprehensive benefit.
Description of drawings
Fig. 1 is copper gold x-ray radiation Preconcentration schematic flow sheet of the present invention;
Fig. 2 is copper gold x-ray radiation preenrichment equipment grading principle schematic diagram of the present invention.
Among the figure, 1, primary radiation; 2, auxiliary radiation; 3, rich ore; 4, lean ore; 5, electromagnetic separation; 6, detection part; 7, X ray parts; 8, collimator; 9, charging tray.
The specific embodiment
The present invention will be further described below in conjunction with embodiment.
The disintegrating machine model that adopts in the embodiment of the invention is that H7800EC(disintegrating machine gape size is variable), the belt conveyer model is the DT II, screening machine is LBS-300-732 (screen size is variable), x-ray radiation separator model is CP Φ-4-3 Π-150, separator operating system is industrial computer, and the separation threshold value of concentrate and tailings is set in native system.
The copper gold of selecting in the embodiment of the invention is the raw ore that the Jin Changgou of Chifeng fine strain of millet exploitation of gold deposit goes out.The Jichanggouliang gold deposit ore type mainly contains Quartz Vein Type, altered rock-type and oxidized ore 3 large classes, wherein the Quartz Vein Type ore can be subdivided into the quartzy arteries and veins type of pyrite and Polymetallic sulphide Quartz Vein Type, and altered rock-type also can be divided into pyrite altered rock-type and Polymetallic sulphide altered rock-type.The major metal mineral of ore have pyrite, chalcopyrite, zincblende, galena, tetrahedrite, also have in addition a small amount of bornite, vitreous copper, magnetic iron ore, mispickel, goethite, marcasite and rusty gold etc., from mineral assemblage, belong to rusty gold-quartz-many metallic combinations; Major nonmetallic minerals has quartz, calcite, sericite, chlorite etc.Pyrite and chalcopyrite are main metalliferous minerals and carry gold mineral.The form that the gold tax is deposited has the parcel gold, the crack is golden, intergranular is golden, wherein wraps up gold and reaches 62.75%.Gold mineral is take thick middle grade as main, and coarse gold is 45.02%, and middle grain gold accounts for 27.64%.Rusty gold and chalcopyrite symbiosis, visible rusty gold is wrapped up by chalcopyrite sometimes, and the content of gold is the highest in the chalcopyrite.
Embodiment 1
(1) fragmentation: copper gold stone is crushed to below the 150mm by disintegrating machine;
(2) screening: sieve with the screening machine of the screen size 90mm material after to fragmentation, undersize material (90mm) otherwise processed, on-the-sieve material is transported to x-ray radiation separator preliminary election operation ore storage bin by belt conveyer, the grade of copper is 0.42% in the on-the-sieve material copper gold, the grade of gold is 3.46g/t, and all the other are gangue mineral;
(3) x-ray radiation separator preliminary election: the on-the-sieve material that step (2) is obtained by batcher is given on the x-ray radiation separator, the threshold value of separating according to the setting of the copper content in raw ore concentrate and tailings in the control system of x-ray radiation separator is 0.1, after process x-ray radiation separator sorts, threshold value will be considered to concentrate and enter the concentrate receiving slit greater than 0.1 ore, and threshold value will be thought mine tailing and be fallen into the mine tailing receiving slit by system less than 0.1 ore;
(4) mine tailing that step (3) is obtained is transported to x-ray radiation separator ore storage bin by belt conveyor again, and will separate Threshold is 0.07, again sorts, and then the gained concentrate is chats, and the gained mine tailing is true tailings, weighs, and calculates productive rate;
(5) carry smart mine tailing: respectively the concentrate and tailings that the x-ray radiation separator separates is transported with belt conveyor system, concentrate enters and selects one treatment process under the factory, and mine tailing directly is transported to tailings reservoir for piling.
The productive rate of concentrate, chats and mine tailing, grade and the rate of recovery are as shown in table 1 in the assorting room.
Table 1
Embodiment 2
(1) screening: (be that the screening machine of 30mm sieves with screen size 90mm) with resulting undersize material in embodiment 1 step (2), undersize material (30mm) otherwise processed, on-the-sieve material is transported to x-ray radiation separator ore storage bin by belt conveyor, the grade of copper is 0.863% in the on-the-sieve material copper gold, the grade of gold is 5.36g/t, and all the other are gangue mineral;
(2) x-ray radiation separator preliminary election: the on-the-sieve material that step (1) is obtained by batcher is given on the x-ray radiation separator, the threshold value of separating according to the setting of the copper content in raw ore concentrate and tailings in the control system of x-ray radiation separator is 0.06, after process x-ray radiation separator sorts, threshold value will be considered to concentrate and enter the concentrate receiving slit greater than 0.06 ore, and threshold value will be thought mine tailing and be fallen into the mine tailing receiving slit by system less than 0.06 ore;
(3) carry smart mine tailing: respectively the concentrate and tailings that the x-ray radiation separator separates is transported with belt conveyor system, concentrate enters and selects one treatment process under the factory, and mine tailing directly is transported to tailings reservoir for piling.
The grade of copper and gold is weighed respectively, chemically examined to concentrate, mine tailing, calculates productive rate and the rate of recovery.The grade of concentrate and tailings and the rate of recovery are as shown in table 2 in the assorting room.
Table 2
(1) fragmentation: copper gold stone is crushed to below the 150mm by disintegrating machine;
(2) screening: sieve with the screening machine of the screen size 100mm material after to fragmentation, undersize material (100mm) otherwise processed, on-the-sieve material is transported to x-ray radiation separator preliminary election operation ore storage bin by belt conveyer, the grade of copper is 0.45% in the on-the-sieve material copper gold, the grade of gold is 3.25g/t, and all the other are gangue mineral;
(3) x-ray radiation separator preliminary election: the on-the-sieve material that step (2) is obtained by batcher is given on the x-ray radiation separator, the threshold value of separating according to the setting of the copper content in raw ore concentrate and tailings in the control system of x-ray radiation separator is 0.15, after process x-ray radiation separator sorts, threshold value will be considered to concentrate and enter the concentrate receiving slit greater than 0.15 ore, and threshold value will be thought mine tailing and be fallen into the mine tailing receiving slit by system less than 0.15 ore;
(4) mine tailing that step (3) is obtained is transported to x-ray radiation separator ore storage bin by belt conveyor again, and will separate Threshold is 0.05, again sorts, and then the gained concentrate is chats, and the gained mine tailing is true tailings, weighs, and calculates productive rate;
(5) carry smart mine tailing: respectively the concentrate and tailings that the x-ray radiation separator separates is transported with belt conveyor system, concentrate enters and selects one treatment process under the factory, and mine tailing directly is transported to tailings reservoir for piling.
The productive rate of concentrate, chats and mine tailing, grade and the rate of recovery are as shown in table 3 in the assorting room.
Table 3
Embodiment 4
(1) screening: (be that the screening machine of 20mm sieves with screen size 100mm) with resulting undersize material in embodiment 3 steps (2), undersize material (20mm) otherwise processed, on-the-sieve material is transported to x-ray radiation separator ore storage bin by belt conveyor, the grade of copper is 0.871% in the on-the-sieve material copper gold, the grade of gold is 5.45g/t, and all the other are gangue mineral;
(2) x-ray radiation separator preliminary election: the on-the-sieve material that step (1) is obtained by batcher is given on the x-ray radiation separator, the threshold value of separating according to the setting of the copper content in raw ore concentrate and tailings in the control system of x-ray radiation separator is 0.03, after process x-ray radiation separator sorts, threshold value will be considered to concentrate and enter the concentrate receiving slit greater than 0.03 ore, and threshold value will be thought mine tailing and be fallen into the mine tailing receiving slit by system less than 0.03 ore;
(3) carry smart mine tailing: respectively the concentrate and tailings that the x-ray radiation separator separates is transported with belt conveyor system, concentrate enters and selects one treatment process under the factory, and mine tailing directly is transported to tailings reservoir for piling.
The grade of copper and gold is weighed respectively, chemically examined to concentrate, mine tailing, calculates productive rate and the rate of recovery.The grade of concentrate and tailings and the rate of recovery are as shown in table 4 in the assorting room.
Table 4
Claims (6)
1. method that adopts x-ray radiation sorting preenrichment copper gold is characterized in that carrying out according to the following steps:
(1) fragmentation: copper gold stone is crushed to below the 150mm by disintegrating machine;
(2) screening: sieve more than or equal to the screening machine of the 20mm material after to fragmentation with screen size, on-the-sieve material is transported to x-ray radiation separator preliminary election operation ore storage bin by belt conveyer;
(3) x-ray radiation separator preliminary election: the on-the-sieve material that step (2) is obtained by batcher is given on the x-ray radiation separator, in the control system of x-ray radiation separator, set the threshold value that concentrate and tailings separates according to the copper content in the raw ore, threshold range is 0.03 ~ 0.15, after process x-ray radiation separator sorts, to carry out with the gold mineral of copper mineral association, obtain Gold Concentrate under Normal Pressure and mine tailing; Wherein, threshold value enters the concentrate receiving slit greater than the ore of setting threshold, and threshold value enters the mine tailing receiving slit less than the ore of setting threshold;
(4) carry smart mine tailing: respectively the concentrate and tailings that the x-ray radiation separator separates is transported with belt conveyor system, concentrate enters and selects one treatment process under the factory, and mine tailing directly is transported to tailings reservoir for piling.
2. a kind of method that adopts x-ray radiation sorting preenrichment copper gold according to claim 1, if gold grade is higher than the on-the-spot actual requirement of commercial Application in the mine tailing that it is characterized in that obtaining in the step (3), then mine tailing is transported to x-ray radiation separator ore storage bin by belt conveyor again, to separate threshold value and in 0.03 ~ 0.15 scope, get the threshold value of using less than in the step (3), again sort, make tailings grade reach requirement, then the gained concentrate is chats, and the gained mine tailing is true tailings.
3. a kind of method that adopts x-ray radiation sorting preenrichment copper gold according to claim 1, the mass content that it is characterized in that copper in the copper gold stone described in the step (1) is 0.02 ~ 3%, the mass content of gold is 0.2 ~ 6g/t, and copper, gold are misproportion dissemination.
4. a kind of method that adopts x-ray radiation sorting preenrichment copper gold according to claim 1 is characterized in that the main useful component of concentrate that obtains in the step (3) contains Au 3 ~ 15g/t by weight percentage, and surplus is gangue mineral.
5. a kind of method that adopts x-ray radiation sorting preenrichment copper gold according to claim 1 is characterized in that the main useful component rate of recovery of concentrate that obtains in the step (3) is Au50 ~ 90%, and surplus is gangue mineral.
6. a kind of method that adopts x-ray radiation sorting preenrichment copper gold according to claim 1 is characterized in that the concentrate yield that obtains in the step (3) is 15 ~ 80%, and surplus is gangue mineral.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316853A (en) * | 2013-06-06 | 2013-09-25 | 东北大学 | Method for sorting and pre-enriching lean hematite by using X-ray radiation |
| CN105722611A (en) * | 2013-10-11 | 2016-06-29 | 斯考拉股份公司 | Apparatus and method for sorting bulk material |
| CN109939960A (en) * | 2019-03-21 | 2019-06-28 | 合肥名德光电科技股份有限公司 | A kind of X-ray ore color sorter |
| CN111744828A (en) * | 2020-07-10 | 2020-10-09 | 江西金石宝矿山机械制造有限公司 | Novel ore automatic sorting device |
| CN113399108A (en) * | 2021-05-13 | 2021-09-17 | 河南省岩石矿物测试中心 | Low-grade gold ore sorting and tailing-free utilization process |
| CN114471936A (en) * | 2022-02-15 | 2022-05-13 | 长沙矿山研究院有限责任公司 | Ore size grading parallel pre-sorting process |
| CN117443748A (en) * | 2023-12-20 | 2024-01-26 | 北京霍里思特科技有限公司 | Control method of object block sorting system and object block sorting system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208769U (en) * | 1986-10-30 | 1988-02-10 | 成都地质学院 | Filter for locating goldmine in portable x-ray fluorometer |
| RU2164830C2 (en) * | 1999-05-07 | 2001-04-10 | Ооо "Технорос" | Method of sizing minerals and gold-bearing ores |
| CN102189083A (en) * | 2011-03-31 | 2011-09-21 | 沈阳东北大学冶金技术研究所有限公司 | Method for pre-sorting low-grade tin ores through X-ray radiation |
| CN102500454A (en) * | 2011-11-03 | 2012-06-20 | 东北大学 | X-ray radiation pre-selecting enrichment method for copper sulfide ore with low grade |
-
2013
- 2013-01-17 CN CN2013100172249A patent/CN103071631A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208769U (en) * | 1986-10-30 | 1988-02-10 | 成都地质学院 | Filter for locating goldmine in portable x-ray fluorometer |
| RU2164830C2 (en) * | 1999-05-07 | 2001-04-10 | Ооо "Технорос" | Method of sizing minerals and gold-bearing ores |
| CN102189083A (en) * | 2011-03-31 | 2011-09-21 | 沈阳东北大学冶金技术研究所有限公司 | Method for pre-sorting low-grade tin ores through X-ray radiation |
| CN102500454A (en) * | 2011-11-03 | 2012-06-20 | 东北大学 | X-ray radiation pre-selecting enrichment method for copper sulfide ore with low grade |
Non-Patent Citations (3)
| Title |
|---|
| 刘明宝等: "X射线辐射分选机对含钼和含镍低品位矿石的预选试验研究", 《矿冶》 * |
| 刘明宝等: "X射线辐射预选技术", 《有色金属（选矿部分）》 * |
| 印万忠等: "X射线辐射分选原理及应用", 《中国矿业》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316853A (en) * | 2013-06-06 | 2013-09-25 | 东北大学 | Method for sorting and pre-enriching lean hematite by using X-ray radiation |
| CN105722611A (en) * | 2013-10-11 | 2016-06-29 | 斯考拉股份公司 | Apparatus and method for sorting bulk material |
| CN105722611B (en) * | 2013-10-11 | 2018-04-06 | 斯考拉股份公司 | Apparatus and method for separation of loose material |
| CN109939960A (en) * | 2019-03-21 | 2019-06-28 | 合肥名德光电科技股份有限公司 | A kind of X-ray ore color sorter |
| CN111744828A (en) * | 2020-07-10 | 2020-10-09 | 江西金石宝矿山机械制造有限公司 | Novel ore automatic sorting device |
| CN113399108A (en) * | 2021-05-13 | 2021-09-17 | 河南省岩石矿物测试中心 | Low-grade gold ore sorting and tailing-free utilization process |
| CN114471936A (en) * | 2022-02-15 | 2022-05-13 | 长沙矿山研究院有限责任公司 | Ore size grading parallel pre-sorting process |
| CN117443748A (en) * | 2023-12-20 | 2024-01-26 | 北京霍里思特科技有限公司 | Control method of object block sorting system and object block sorting system |
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Application publication date: 20130501 |