CN102102502A - Method for arranging in-situ leaching hole drilling filter - Google Patents
Method for arranging in-situ leaching hole drilling filter Download PDFInfo
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- CN102102502A CN102102502A CN2010106034022A CN201010603402A CN102102502A CN 102102502 A CN102102502 A CN 102102502A CN 2010106034022 A CN2010106034022 A CN 2010106034022A CN 201010603402 A CN201010603402 A CN 201010603402A CN 102102502 A CN102102502 A CN 102102502A
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Abstract
The invention relates to a method for arranging an in-situ leaching hole drilling filter. If a uranium ore has a single vein, the length of a liquid injection hole drilling filter is three fourths to four fifths the thickness of the uranium ore layer, the bottom of the liquid injection hole drilling filter is positioned between the top part and the middle part of the uranium ore layer, the top of the liquid injection hole drilling filter is extended to a non ore layer, the length of an extraction hole drilling filter is three fourths to four fifths the thickness of the uranium ore layer, the top of the extraction hole drilling filter is positioned between the middle part and the bottom of the uranium ore layer and the bottom of the extraction hole drilling filter is extended to the non ore layer; and if the uranium ore has multiple veins, the length of the liquid injection hole drilling filter is three fourths to four fifths the thickness of the topmost uranium ore layer, the bottom of the liquid injection hole drilling filter is positioned between the top part and the middle part of the topmost uranium ore layer, the top of the liquid injection hole drilling filter is extended to the non ore layer, the length of the extraction hole drilling filter is three fourths to four fifths the thickness of the lowest uranium ore layer, and the top of the extraction hole drilling filter is positioned between the middle part and the bottom of the lowest uranium ore layer and the bottom of the extraction hole drilling filter is extended downward to the non ore layer. By the method, leaching liquid can flow directionally, the full and effective contact between the leaching liquid and ore is guaranteed, and the uranium concentration of the leaching liquid is improved.
Description
Technical field
The present invention relates to the ground-dipping uranium extraction drill construction technique, be specifically related to soak boring filter arrangement method a kind ofly.
Background technology
It is the throat of ground dipping uranium extracting process process that ground soaks the boring strainer, and to be that leaching solution enters underground, leachate is extracted unique passage on the face of land out.As shown in Figure 1, soak the thickness of the installation length of technical requirements boring strainer more than or equal to ore bed originally, face ore bed and transfer, its installation site is positioned at ore bed.And in most of the cases, the ore bed permeance property is less than the country rock permeance property, by fluid injection boring strainer enter ore bed the not diafiltration in ore bed of leaching solution major part, do not contact with uranium ore, thereby can't leach the uranium metal in the ore bed effectively, the uranium concentration of leachate is low, and leaching cycle is long.
Summary of the invention
The object of the present invention is to provide and soak boring filter arrangement method a kind ofly, its reasonable Arrangement boring strainer position on the ore bed section, realize the directed flow of leaching solution, guarantee that leaching solution fully and effectively contacts with ore, thereby improve the leachate uranium concentration.
Realize the technical scheme of the object of the invention: soak boring filter arrangement method a kind ofly, when it soaks method exploitation uranium ore on ground, construct several fluid injections boring and the boring of several drawing liquids, fluid injection borehole casing down in fluid injection boring respectively, in drawing liquid boring under the drawing liquid borehole casing; Be equipped with a fluid injection boring strainer on described each fluid injection borehole casing, be equipped with a drawing liquid boring strainer on each drawing liquid borehole casing;
When uranium ore is single mineral ore, one deck uranium ore layer is promptly only arranged, be non-ore bed in uranium ore layer the upper and lower; The length that is located at the fluid injection boring strainer in the fluid injection borehole casing is 3/4～4/5 of uranium ore layer thickness, and the bottom of this fluid injection boring strainer is between uranium ore layer top and middle part, and the top of fluid injection boring strainer extends upwardly to non-ore bed; The length that is located at the drawing liquid boring strainer in the drawing liquid borehole casing is 3/4～4/5 of uranium ore layer thickness, and the top of this drawing liquid boring strainer is between uranium ore layer middle part and bottom, and the bottom of drawing liquid boring strainer extends downward non-ore bed;
When uranium ore is many mineral ores, several layers uranium ore layer is promptly arranged, the non-ore bed in interval between different layers uranium ore layer; The length that is located at the fluid injection boring strainer in the fluid injection borehole casing is 3/4～4/5 of the superiors' uranium ore layer thickness, the bottom of this fluid injection boring strainer is between the superiors uranium ore layer top and middle part, and the top of fluid injection boring strainer extends upwardly to non-ore bed; The length that is located at the drawing liquid boring strainer in the drawing liquid borehole casing is 3/4～4/5 of orlop uranium ore layer thickness, the top of drawing liquid boring strainer (4) is being descended between uranium ore layer middle part and the bottom most, and the bottom of this drawing liquid boring strainer extends downward non-ore bed.
The aforesaid boring filter arrangement method of soaking a kind ofly, when uranium ore was single mineral ore, the bottom of described fluid injection boring strainer was positioned at uranium ore layer thickness 1/2 place, and the top of drawing liquid boring strainer is positioned at uranium ore layer thickness 1/2 place; When uranium ore was many mineral ores, the bottom of described fluid injection boring strainer was positioned at the superiors uranium ore layer thickness 1/2 place, and the top of drawing liquid boring strainer is positioned at descends uranium ore layer thickness 1/2 place most.
The aforesaid boring filter arrangement method of soaking a kind ofly, when uranium ore was single mineral ore, the bottom of described fluid injection boring strainer was positioned at uranium ore layer top, and the top of drawing liquid boring strainer is positioned at uranium ore layer bottom; When uranium ore was many mineral ores, the bottom of described fluid injection boring strainer was positioned at the superiors uranium ore layer top, and the top of drawing liquid boring strainer is positioned at descends uranium ore layer bottom most.
The aforesaid boring filter arrangement method of soaking, its described fluid injection boring strainer and drawing liquid boring strainer adopt pellet type boring strainer or fill out gravel formula boring strainer a kind ofly.
Effect of the present invention is: soak boring filter arrangement method of the present inventionly, by improving the arrangement form of ore bed position strainer, make drawing liquid boring strainer and fluid injection boring strainer not in one deck position, not on same horizontal plane, the different hydraulic pressure difference of levels position when fluid injection is taken out in utilization, for leaching solution from top to bottom or from bottom to up the infiltrate ore bed created condition, make leaching solution not only can be horizontal seepage flow along ore bed, but also can be vertically or tiltedly wear ore bed seepage flow, thereby be injected into underground most of leaching solution infiltrate ore bed, fully contact with ore, leach uranium metal to greatest extent, thereby improved the uranium content in the leachate.
Description of drawings
Fig. 1 is for soak boring filter arrangement form schematic diagram originally;
Fig. 2 is the embodiment 1 described boring filter arrangement schematic diagram that soaks a kind ofly;
Fig. 3 is the embodiment 2 described boring filter arrangement schematic diagrames that soak a kind ofly;
Among the figure: 1. fluid injection borehole casing, 2. fluid injection boring strainer, 3. uranium ore layer, 4. drawing liquid boring strainer, 5. drawing liquid borehole casing, 6. non-ore bed.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the boring strainer arranged method of soaking of the present invention is further described a kind ofly.
As shown in Figure 2, the boring strainer arranged method of soaking of the present invention is used for the production that uranium ore is soaked in the somewhere a kind ofly.When this uranium ore is single mineral ore, one deck uranium ore layer 3 is only arranged promptly, be non-ore bed 6 in uranium ore layer 3 the upper and lower.
4 of construction drawing liquid borings, 9 of fluid injection borings.Drawing liquid borehole casing 5 under in drawing liquid boring; Be equipped with a fluid injection boring strainer 2 on described each fluid injection borehole casing 1, be equipped with a drawing liquid boring strainer 4 on each drawing liquid borehole casing 5.
The length that is located at the fluid injection boring strainer 2 in the fluid injection borehole casing 1 is 3/4 of uranium ore layer 3 thickness, the bottom of this fluid injection boring strainer 2 is positioned at uranium ore layer 3 middle part (being uranium ore layer 3 thickness 1/2 places), and the top of fluid injection boring strainer 2 extends upwardly to non-ore bed 6.
The length that is located at drawing liquid boring strainer 4 is 3/4 of uranium ore layer 3 thickness, and the top of this drawing liquid boring strainer 4 is positioned at uranium ore layer 3 middle part (being uranium ore layer 3 thickness 1/2 places), and the bottom of drawing liquid boring strainer 4 extends downward non-ore bed 6.
Result of the test shows that the highest uranium concentration of single hole drawing liquid has improved 70～80% more originally than the uranium concentration that soaks stope, and average uranium concentration of leaching phase has improved 80～100% more originally than the average uranium concentration that soaks stope.
This filter arrangement technology of the present invention can strengthen the top-down flow gradient of solution, and the bottom horizontal flow sheet of solution is become perpendicular flow, reduces the diafiltration of solution in non-ore bed as far as possible, reduces reagent consumption, increases the content of valuable metal in the solution.
Above-mentioned fluid injection boring strainer 2 and drawing liquid boring strainer 5 can adopt pellet type boring strainer or fill out gravel formula boring strainer.
Difference from Example 1 is:
The bottom of fluid injection boring strainer 2 is positioned at uranium ore layer 3 top, and the top of fluid injection boring strainer 2 extends upwardly to non-ore bed 6.
The top of drawing liquid boring strainer 4 is positioned at uranium ore layer 3 bottom, and the bottom of drawing liquid boring strainer 4 extends downward non-ore bed 6.
Difference from Example 1 is:
The length that is located at the fluid injection boring strainer 2 in the fluid injection borehole casing 1 is 4/5 of uranium ore layer 3 thickness, and the bottom of this fluid injection boring strainer 2 is positioned at uranium ore layer 3 thickness 1/3 place, and the top of fluid injection boring strainer 2 extends upwardly to non-ore bed 6.
The length that is located at drawing liquid boring strainer 4 is 4/5 of uranium ore layer 3 thickness, and the top of this drawing liquid boring strainer 4 is positioned at uranium ore layer 3 thickness 2/3 place, and the bottom of drawing liquid boring strainer 4 extends downward non-ore bed 6.
As shown in Figure 3, the boring strainer arranged method of soaking of the present invention is used for the production that uranium ore is soaked in the somewhere a kind ofly.When this uranium ore is many mineral ores, three layers of uranium ore layer 3 are arranged promptly, the non-ore bed 6 in interval between different layers uranium ore layer 3.
12 of construction drawing liquid borings, 32 of fluid injection borings.Drawing liquid borehole casing 5 under in drawing liquid boring; Be equipped with a fluid injection boring strainer 2 on described each fluid injection borehole casing 1, be equipped with a drawing liquid boring strainer 4 on each drawing liquid borehole casing 5.
The length that is located at the fluid injection boring strainer 2 in the fluid injection borehole casing 1 is 4/5 of the superiors' uranium ore layer 3 thickness, the bottom of this fluid injection boring strainer 2 is positioned at the superiors uranium ore layer 3 middle part (being uranium ore layer 3 thickness 1/2 places), and the top of fluid injection boring strainer 2 extends upwardly to non-ore bed 6;
The length that is located at the drawing liquid boring strainer 4 in the drawing liquid borehole casing 5 is 4/5 of orlop uranium ore layer 3 thickness, the top of drawing liquid boring strainer 4 is positioned at descends uranium ore layer 3 middle part (being uranium ore layer 3 thickness 1/2 places) most, and the bottom of this drawing liquid boring strainer 5 extends downward non-ore bed 6.
Result of the test shows that the highest uranium concentration of single hole drawing liquid has improved 50～60% more originally than the uranium concentration that soaks stope, and average uranium concentration of leaching phase has improved 60～70% more originally than the average uranium concentration that soaks stope.
Above-mentioned fluid injection boring strainer 2 and drawing liquid boring strainer 5 can adopt pellet type boring strainer or fill out gravel formula boring strainer.
The position of ore bed position strainer is the key position of ground soaking technology boring, the present invention resets an environment that leaches uranium metal in the SANDSTONE URANIUM DEPOSITS, the overlapping relation up and down in the country rock about ore bed, ore bed by control drawing liquid boring strainer and fluid injection boring strainer, the infiltration direction of control leaching solution, thereby the control leaching solution flows in ore bed in an orderly manner, force leaching solution vertically or tiltedly to wear ore bed seepage flow, make and be injected into underground most of leaching solution and fully contact with ore, leach uranium metal to greatest extent, thereby improved the uranium content in the leachate.
Difference from Example 4 is:
The length that is located at the fluid injection boring strainer 2 in the fluid injection borehole casing 1 is 3/4 of the superiors' uranium ore layer 3 thickness, and the bottom of this fluid injection boring strainer 2 is positioned at the superiors uranium ore layer 3 top, and the top of fluid injection boring strainer 2 extends upwardly to non-ore bed 6;
The length that is located at the drawing liquid boring strainer 4 in the drawing liquid borehole casing 5 is 3/4 of orlop uranium ore layer 3 thickness, and the top of this drawing liquid boring strainer 4 is positioned at descends uranium ore layer 3 bottom most, and the bottom of this drawing liquid boring strainer 5 extends downward non-ore bed 6.
Difference from Example 4 is:
The bottom of fluid injection boring strainer 2 is positioned at the superiors' uranium ore layer 3 thickness 1/3 place, and the top of fluid injection boring strainer 2 extends upwardly to non-ore bed 6;
The top of drawing liquid boring strainer 4 is positioned at descends uranium ore layer 3 thickness 2/3 place most, and the bottom of this drawing liquid boring strainer 5 extends downward non-ore bed 6.
Claims (4)
1. a ground soaks boring filter arrangement method, when it soaks method exploitation uranium ore on ground, construct several fluid injections borings and the boring of several drawing liquids, fluid injection borehole casing (1) down in fluid injection boring respectively, in drawing liquid boring under drawing liquid borehole casing (5); Be equipped with a fluid injection boring strainer (2) on described each fluid injection borehole casing (1), be equipped with a drawing liquid boring strainer (4) on each drawing liquid borehole casing (5); It is characterized in that:
When uranium ore is single mineral ore, one deck uranium ore layer (3) is promptly only arranged, be non-ore bed (6) in uranium ore layer (3) the upper and lower; The length that is located at the fluid injection boring strainer (2) in the fluid injection borehole casing (1) is 3/4～4/5 of uranium ore layer (3) thickness, the bottom of this fluid injection boring strainer (2) is positioned between uranium ore layer (3) top and the middle part, and the top of fluid injection boring strainer (2) extends upwardly to non-ore bed (6); The length that is located at the drawing liquid boring strainer (4) in the drawing liquid borehole casing (5) is 3/4～4/5 of uranium ore layer (3) thickness, the top of this drawing liquid boring strainer (4) is positioned between uranium ore layer (3) middle part and the bottom, and the bottom of drawing liquid boring strainer (4) extends downward non-ore bed (6);
When uranium ore is many mineral ores, several layers uranium ore layer (3) is promptly arranged, interval non-ore bed (6) between different layers uranium ore layer (3); The length that is located at the fluid injection boring strainer (2) in the fluid injection borehole casing (1) is 3/4～4/5 of the superiors' uranium ore layers (3) thickness, the bottom of this fluid injection boring strainer (2) is positioned between the superiors uranium ore layer (3) top and the middle part, and the top of fluid injection boring strainer (2) extends upwardly to non-ore bed (6); The length that is located at the drawing liquid boring strainer (4) in the drawing liquid borehole casing (5) is 3/4～4/5 of orlop uranium ore layer (3) thickness, the top of drawing liquid boring strainer (4) is positioned to be descended between uranium ore layer (3) middle part and the bottom most, and the bottom of this drawing liquid boring strainer (5) extends downward non-ore bed (6).
2. the boring filter arrangement method of soaking according to claim 1 a kind ofly, it is characterized in that: when uranium ore is single mineral ore, the bottom of described fluid injection boring strainer (2) is positioned at uranium ore layer (3) thickness 1/2 place, and the top of drawing liquid boring strainer (4) is positioned at uranium ore layer (3) thickness 1/2 place; When uranium ore was many mineral ores, the bottom of described fluid injection boring strainer (2) was positioned at the superiors' uranium ore layers (3) thickness 1/2 place, and the top of drawing liquid boring strainer (4) is positioned at descends uranium ore layer (3) thickness 1/2 place most.
3. the boring filter arrangement method of soaking according to claim 1 a kind ofly, it is characterized in that: when uranium ore is single mineral ore, the bottom of described fluid injection boring strainer (2) is positioned at uranium ore layer (3) top, and the top of drawing liquid boring strainer (4) is positioned at uranium ore layer (3) bottom; When uranium ore was many mineral ores, the bottom of described fluid injection boring strainer (2) was positioned at the superiors' uranium ore layers (3) top, and the top of drawing liquid boring strainer (4) is positioned at descends uranium ore layer (3) bottom most.
4. the boring filter arrangement method of soaking according to claim 1 is characterized in that a kind ofly: described fluid injection boring strainer (2) and drawing liquid boring strainer (5) adopt pellet type boring strainer or fill out gravel formula boring strainer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106034022A CN102102502A (en) | 2010-12-23 | 2010-12-23 | Method for arranging in-situ leaching hole drilling filter |
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| CN2010106034022A CN102102502A (en) | 2010-12-23 | 2010-12-23 | Method for arranging in-situ leaching hole drilling filter |
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| CN102102502A true CN102102502A (en) | 2011-06-22 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711462A (en) * | 2012-10-09 | 2014-04-09 | 核工业北京化工冶金研究院 | Leaching experimental facility for in-situ leaching uranium mining |
| CN104295254A (en) * | 2014-09-24 | 2015-01-21 | 核工业北京化工冶金研究院 | In-situ leaching drilling filter lifting and lowering device and using method thereof |
| CN106930764A (en) * | 2015-12-31 | 2017-07-07 | 新疆中核天山铀业有限公司 | Multilayer sandstone-type uranium mineralization with respect separate zone production technique |
| CN107366505A (en) * | 2017-05-27 | 2017-11-21 | 中核通辽铀业有限责任公司 | A kind of ground-dipping uranium extraction Novel drilling construction method |
| CN108643827A (en) * | 2018-04-23 | 2018-10-12 | 中核通辽铀业有限责任公司 | A kind of hole structure construction method increasing ground-dipping uranium extraction pumping liquid measure |
| CN112647902A (en) * | 2020-12-25 | 2021-04-13 | 核工业北京化工冶金研究院 | In-situ leaching uranium mining drilling filter and well completion method |
| CN114658407A (en) * | 2022-04-13 | 2022-06-24 | 南华大学 | Electric in-situ leaching uranium mining device and method |
| CN115163025A (en) * | 2021-12-14 | 2022-10-11 | 核工业北京化工冶金研究院 | In-situ leaching precise mining method for sandstone-type uranium ore |
| CN115786745A (en) * | 2022-12-02 | 2023-03-14 | 中核内蒙古矿业有限公司 | In-situ leaching uranium mining leaching method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711462A (en) * | 2012-10-09 | 2014-04-09 | 核工业北京化工冶金研究院 | Leaching experimental facility for in-situ leaching uranium mining |
| CN103711462B (en) * | 2012-10-09 | 2016-06-29 | 核工业北京化工冶金研究院 | A kind of ground-dipping uranium extraction leaching experiment device |
| CN104295254A (en) * | 2014-09-24 | 2015-01-21 | 核工业北京化工冶金研究院 | In-situ leaching drilling filter lifting and lowering device and using method thereof |
| CN106930764A (en) * | 2015-12-31 | 2017-07-07 | 新疆中核天山铀业有限公司 | Multilayer sandstone-type uranium mineralization with respect separate zone production technique |
| CN106930764B (en) * | 2015-12-31 | 2018-11-02 | 新疆中核天山铀业有限公司 | Multilayer sandstone-type uranium mineralization with respect separate zone production technique |
| CN107366505A (en) * | 2017-05-27 | 2017-11-21 | 中核通辽铀业有限责任公司 | A kind of ground-dipping uranium extraction Novel drilling construction method |
| CN108643827A (en) * | 2018-04-23 | 2018-10-12 | 中核通辽铀业有限责任公司 | A kind of hole structure construction method increasing ground-dipping uranium extraction pumping liquid measure |
| CN112647902A (en) * | 2020-12-25 | 2021-04-13 | 核工业北京化工冶金研究院 | In-situ leaching uranium mining drilling filter and well completion method |
| CN115163025A (en) * | 2021-12-14 | 2022-10-11 | 核工业北京化工冶金研究院 | In-situ leaching precise mining method for sandstone-type uranium ore |
| CN115163025B (en) * | 2021-12-14 | 2023-09-08 | 核工业北京化工冶金研究院 | In-situ leaching accurate mining method for sandstone type uranium ores |
| CN114658407A (en) * | 2022-04-13 | 2022-06-24 | 南华大学 | Electric in-situ leaching uranium mining device and method |
| CN115786745A (en) * | 2022-12-02 | 2023-03-14 | 中核内蒙古矿业有限公司 | In-situ leaching uranium mining leaching method |
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Application publication date: 20110622 |