AU2016431138A1 - Rotary jet-grouting modular rare-earth mining process - Google Patents
Rotary jet-grouting modular rare-earth mining process Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
A rotary jet-grouting modular rare-earth mining process. First, the distribution of rare-earth mineral deposits and the thickness of the mineral deposits in a mountain are ascertained, and a liquor collecting pipe network is arranged at the junction of the bottom of a rich deposit and a poor deposit to collect a leaching mother liquor; a mining unit module deploys a jet flow drill hole (2) in the mountain extending to the bottom of the rich deposit (3), and starts crushing and pulpifying the mineral from the bottom of the rich deposit (3) using a high-pressure liquor-extracting jet flow, and gradually lifting a drill bit (9) to the top of the rich deposit (3) to form a cylindrical slurry rare-earth mineral (4); then, by performing agitation and leaching on the slurry mineral by up-and-down movements of a disk-shaped high-pressure jet flow ring (10), the mother liquor aggregates into a liquor collecting manifold (7) via the lower liquor collecting pipe network, to complete the collection of the mother liquor. The rotary jet-grouting modular rare-earth mining process can realize modular mining of minerals, increase the recycling concentration of a mother liquor and reduce the amount of extract liquor used, and effectively ensure the efficient recycling of resources.
Description
ROTARY JET-GROUTING MODULAR RARE-EARTH MINING PROCESS
FIELD OF THE INVENTION [0001] The present invention relates to a process for mining ion-adsorption type rare-earth ore, in particular to a rotary jet-grouting modular rare-earth mining process.
DESCRIPTION OF RELATED ART [0002] China is the country with the most abundant rare-earth resources in the world, and generally known for the name of “Kingdom of Rare Earth”, wherein heavy rare earth mainly exists in the south, and light rare earth mainly exists in the north. Rare-earth mineral products of China not only have great reserves, but also have many varieties, good quality and unique ore deposit type.
[0003] Ion-adsorption type rare-earth ore, also called as weathered crust elution-deposited rare earth ore, is a rare-earth mineral which exists in the form of “ion phase” mineral and is adsorbed to a “carrier” mineral surface. A vast majority of rare earths in the rare-earth mineral exist in the state of cation, and are adsorbed to a certain mineral carrier, for example, adsorbed to aluminum silicate minerals or fluorocarbonate minerals such as kaolinite and muscovite. The ion-adsorption type rare-earth ore is an ore body composing of “ion-adsorption type rear-earth minerals”, while the rare-earth ore in the south essentially belongs to the ion-adsorption type rare-earth ore.
[0004] At present, the mining process of the ion-adsorption type rare-earth ore substantially adopts a conventional in-situ leaching mining process, in which a shaft network is directly arranged on ore body without damaging ground vegetation of the ore body, stripping topsoil, and excavating and carrying the ore, and an electrolyte solution capable of exchanging rare earth ions is injected into the ore body by using a series of shallow shafts (troughs) to allow the rare earth ions to be exchanged and desorbed with it, and then wait for collection of mother liquor, wherein a liquor collecting system in a stope substantially adopts liquor collecting ditches at mountain foot for collection, as a result, the diffusion of the mother liquor in the ore body is hard to control.
[0005] Existing in-situ leaching mining processes have the following deficiencies:
[0006] a. Because of non-uniformity of permeability coefficient of each part in the mountain due to the structure of the mountain, using the same process to inject the solution at the same time leads to less solution permeability at places with smaller permeability coefficient, and most of the solution permeating along soil layers with higher permeability coefficient in the mountain. In order to leach the rare earths in the soil layers with smaller permeability coefficient, it is necessary to inject a large amount of the solution and treated waste water, resulting in an excess of the solution and the treated waste water at places with higher permeability coefficient.
[0007] b. in a certain time, amount of cations adsorbed is proportional to time, that is, the longer the time is, the more cations are adsorbed. When the thickness of the ore deposit exceeds a certain thickness, or the permeability coefficient of the soil layer is very small, it takes a long time for the solution injected from a liquor injecting hole to permeate into a tunnel at the bottom of the ore deposit, resulting in a large amount of ions adsorbed to the soil layer above the tunnel. To completely leach the bottom ore deposit, injection of a large amount of the solution is required, resulting in an increase in the amount of water used, which in turn causes a lower grade of the rare earths in the rare-earth solution flowing into the tunnel, leading to a higher production cost.
[0008] c. Due to dominant orientation of the solution diffusion, a large amount of the solution injected from the liquor injecting hole reaches the liquor collecting system at the mountain foot from the mountain top along a path with larger cracks and lower resistance. In the later stage of leaching, it is easy to form an inherent large-crack solution flow channel in the ore body, leading to greatly reduced leaching effect. That is also the reason why, although some rare earth ores are judged to be completely mined according to the concentration of the leached mother liquor, after a period of time, the mother liquor with higher grade would still be obtained by re-leaching. That is, a crack structure in the ore body changes after initial mining is ended, and blind zones of the cracks in the previous mining process are leached during the solution re-diffusion process.
[0009] Therefore, in the existing in-situ leaching mining processes, it is difficult to define standards about whether the ore body is completely leached and it is hard to form a systematic recovery of resources. The production process is relatively extensive, leading to relatively low recovery rate of resources and low concentration of the mother liquor formed, which makes the extraction process more difficult.
SUMMARY OF THE INVENTION [0010] In order to overcome the deficiencies in the prior art, such as uncontrolled permeation direction of extraction solution in an ore body and difficulty to leach partial ore body, the present invention provides a rotary jet-grouting modular rare-earth mining process. The mining process is a systematic modular rare-earth leaching mining technology which is capable of increasing recovery concentration of a mother liquor and reducing the amount of the extraction solution used, so as to realize modular systematic efficient recovery of rare earth resources.
[0011] A technical solution which is adopted by the present invention to solve the technical problems thereof comprises the following steps:
1) ascertaining an ore deposit, wherein distribution of a rare-earth ore deposit and thickness of the ore deposit in a mountain are ascertained; 2) performing grid unit module division on an ore body at top of the mine, so as to form several mining unit modules; 3) arranging jet flow drill holes in the mountain of each mining unit module, wherein depths of the jet flow drill holes reach bottom of a rich ore deposit from a topsoil; 4) arranging drill holes at junction of the bottom of the rich ore deposit and a lean ore deposit according to run of a lode, so as to form a plurality of mother liquor collecting channels, wherein each of the mother liquor collecting channels is in communication with the jet flow drill holes below the several mining unit modules; 5) arranging a liquor collecting manifold outside the mountain, wherein the liquor collecting manifold is located below ports of the mother liquor collecting channels and arranged obliquely along the mountain, and the liquor collecting manifold is connected to ports of all liquor collecting pipes and flows to mountain foot; 6) arranging the liquor collecting pipes in the mother liquor collecting channels, wherein the liquor collecting pipes are provided with circles of small holes in circumferential direction at a certain interval and are wrapped with 3-4 layers of linen at the small holes, one end of each of the liquor collecting pipes is sealed and extends deeply to bottom of the corresponding mother liquor collecting channel, the other end of each of the liquor collecting pipes is connected to the liquor collecting manifold, and the end of each of the mother liquor collecting channels facing the liquor collecting manifold is tamped and sealed with clay between each of the mother liquor collecting channels and the corresponding liquor collecting pipe; and 7) sending a hydraulic rock-breaking drill bit into each of the jet flow drill holes at a position which is 0.4 m away from hole bottom, inputting a high-pressure extraction solution, rotating the hydraulic rock-breaking drill bit at high speed to cut the surrounding rare-earth ore body, gradually lifting the hydraulic rock-breaking drill bit up to top of the rich ore deposit, so as to form a cylindrical slurry-state rare-earth ore body in each of the jet flow drill holes, then agitating and leaching the slurry-state rare-earth ore body by moving the hydraulic rock-breaking drill bit up and down to form the to-be-collected mother liquor, and pooling the mother liquor into the liquor collecting manifold via the lower mother liquor collecting channels and liquor collecting pipes, so as to complete collection of the mother liquor.
[0012] Compared with the existing in-situ leaching mining processes, the rotary jet-grouting modular rare-earth mining process of the present invention utilizes mining unit modules to divide a rare-earth ore body to perform grid module division on the rare-earth ore body, thereby preventing extraction solution from flowing ineffectively along large cracks in the rare-earth ore body, and greatly increasing recovery rate of rare earth ions in the ore body; furthermore, jet flow drill holes are drilled in the mining unit modules, the jet flow drill holes extend deeply to bottom of a rich ore deposit, the extraction solution is applied on the rare-earth ore body in the jet flow drill holes in a manner of high-pressure jet flow to crush and pulpify the ore body from the bottom of the rich ore deposit. By gradually lifting drill bit up to top of the rich ore deposit, cylindrical slurry-state rare-earth ore body is formed, and then, the slurry-state ore body is agitated and leached by a disk-shaped high-pressure jet flow ring formed by the extraction solution through moving the drill bit up and down, to obtain the final mother liquor. The mother liquor is a mixture of the slurry-state rare-earth ore body and the high-pressure extraction solution, wherein the smaller the mineral particles are, the larger the mineral extraction surface area is, and therefore, extraction efficiency is higher than that of liquid mother liquor obtained by existing electrolyte solution ion replacement, and resources can be systematically, efficiently and gradually recovered. The leaching of the slurry-state ore body provides increased concentration of the mother liquor, greatly increased production of the rare earths, and also higher grade of the rare earths contained in the mother liquor. Moreover, since in the above process of forming the mother liquor, a high-pressure water jet flow formed by the extraction solution is directly used to cut the ore body and meanwhile, the rare-earth mineral is agitated, pulpified and extracted by moving the jet flow drill bit up and down, the leaching speed is fast, the amount of the extraction solution used is reduced, and the mining speed is accelerated. The mother liquor is pooled into a liquor collecting manifold via lower liquor collecting pipes, so as to complete collection of the mother liquor. During the implementation process, according to effluent concentrations of the liquor collecting pipes, the injection amount of the extraction solution may be adjusted, and it may be defined whether the ore body of the mining unit is sufficiently extracted, thereby controlling the ineffective flow of the extraction solution and blind injection, and controlling the amount of the extraction solution used according to design requirements in a timely manner. In summary, the present invention can greatly reduce the electricity consumption, labor cost and raw material consumption needed per ton of rare-earth products, and has remarkable economic benefits.
BRIEF DESCRIPTION OF THE DRAWINGS [0013] The invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0014] Fig. 1 is a schematic diagram of a mother liquor extraction process according to an embodiment of the present invention.
[0015] Fig. 2 is a cross-sectional view taken at I in Fig. 1 which is a structural schematic diagram of a single mining unit module.
[0016] In the drawings, 1, topsoil; 2, jet flow drill hole; 3, rich ore deposit; 4, slurry-state rare-earth ore body; 5, lean ore deposit; 6, liquor collecting pipe; 7, liquor collecting manifold; 8, liquor injecting manifold; 9, hydraulic rock-breaking drill bit; 10, disk-shaped high-pressure jet flow ring; 11, extraction solution branch pipe; 12, small hole; 13, mother liquor collecting channel; 14, clay; 15, linen.
DETAILED DESCRIPTION OF THE INVENTION [0017] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts should fall within the protection scope of the present invention.
[0018] Fig. 1 and Fig. 2 show structural schematic diagrams of a preferred embodiment of the present invention, in which a rotary jet-grouting modular rare-earth mining process comprises the following steps:
1) ascertaining an ore deposit, wherein distribution of a rare-earth ore deposit and thickness of the ore deposit in a mountain are ascertained;
2) in order to prevent extraction solution from flowing ineffectively along large cracks in a rare-earth ore body and increase recovery rate of rare earth ions in the ore body, performing grid unit module division on the ore body at top of the mine to form several mining unit modules;
3) arranging jet flow drill holes 2 in the mountain of each mining unit module, wherein depths of the jet flow drill holes 2 reach bottom of a rich ore deposit 3 from a topsoil 1;
4) arranging drill holes at junction of the bottom of the rich ore deposit 3 and a lean ore deposit 5 according to run of a lode, so as to form a plurality of mother liquor collecting channels 13, wherein each of the mother liquor collecting channels 13 is in communication with the jet flow drill holes 2 below the several mining unit modules;
5) arranging a liquor collecting manifold 7 outside the mountain, wherein the liquor collecting manifold 7 is located below ports of the mother liquor collecting channels 13 and arranged obliquely along the mountain, and the liquor collecting manifold 7 is connected to ports of all liquor collecting pipes 6 and flows to mountain foot;
6) arranging the liquor collecting pipes 6 in the mother liquor collecting channels 13, wherein the liquor collecting pipes 6 are provided with circles of small holes 12 in circumferential direction at a certain interval and are wrapped with 3-4 layers of linen 15 at the small holes 12 to achieve an effect of preliminary filtration of the mother liquor, one end of each of the liquor collecting pipes 6 is sealed and extends deeply to bottom of the corresponding mother liquor collecting channel 13, the sealing of one end of each of the liquor collecting pipes 6 is to prevent a large amount of slurry from flowing into the liquor collecting pipes 6, the other end of each of the liquor collecting pipes 6 is connected to the liquor collecting manifold 7, and the end of each of the mother liquor collecting channels 13 facing the liquor collecting manifold 7 is tamped and sealed with clay 14 between each of the mother liquor collecting channels 13 and the corresponding liquor collecting pipe 6, in this way, the mother liquor flows into the mother liquor collecting channels 13 from the jet flow drill holes 2 of the mining unit modules, and then flows into the liquor collecting pipes 6 through the small holes 12 on the liquor collecting pipes 6, and after that, the mother liquor in the liquor collecting pipes 6 flows into the liquor collecting manifold 7; and
7) sending a hydraulic rock-breaking drill bit 9 into each of the jet flow drill holes 2 at a position which is 0.4 m away from hole bottom, adjusting direction of the hydraulic rock-breaking drill bit 9 to generate a horizontal cutting plane, inputting high-pressure extraction solution after confirming that the drill bit and a drill pipe are sealed, rotating the hydraulic rock-breaking drill bit 9 at high speed to cut the surrounding rare-earth ore body with a disk-shaped high-pressure jet flow ring 10 ejected therefrom, gradually lifting the hydraulic rock-breaking drill bit 9 up to top of the rich ore deposit 3, so as to form a cylindrical slurry-state rare-earth ore body 4 with a radius up to 1.0-1.5 m in each of the jet flow drill holes 2, wherein the radius of the cylindrical slurry-state rare-earth ore body 4 can be adjusted through jet flow pressure; and then agitating and extracting the slurry-state rare-earth ore body 4 repeatedly under action of the disk-shaped high-pressure jet flow ring 10 by moving the hydraulic rock-breaking drill bit 9 up and down to complete the process of hydraulically crushing the ore body and agitating the slurried rare earths and to form to-be-collected mother liquor after agitating and leaching the slurry-state rare-earth ore body 4, and pooling the mother liquor into the liquor collecting manifold 7 via the lower mother liquor collecting channels 13 and liquor collecting pipes 6, so as to complete collection of the mother liquor.
[0019] The drilling order of the jet flow drill holes 2 and the mother liquor collecting channels 13 in the above-mentioned embodiment of the present invention may be interchanged as long as the relative positional relationship is satisfied.
[0020] In the extraction process (namely, the process of forming the mother liquor) of the present invention, it can be determined whether the mining unit is completely leached by monitoring collection concentration of the mother liquor in the liquor collecting pipes 6 below the ore body of the mining unit module, and after the leaching is finished, equipments such as corresponding extraction solution branch pipe 11, the drill pipe, and the drill bit are removed.
[0021] The area of the mining unit module in the step 2) is 10-20 m , and is flexibly set, specifically depending on the cracks and permeability characteristics of the ore body, the jet flow pressure and the strength of the ore body.
[0022] The jet flow drill holes 2 in the step 3) are arranged in center of the mountain of the mining unit module, diameters of the jet flow drill holes 2 are not less than 32 mm and may be flexibly adjusted according to the parameters of the jet flow drill pipe specifically, the drilling depths of the jet flow drill holes 2 may be specifically defined according to rare earth enrichment degree of the mineral particles obtained from the drill holes, and a portable packsack drilling rig or a geological drilling rig may be adopted for drilling holes.
[0023] The mother liquor collecting channels 13 in the step 6) are designed at the junction of the bottom of the rich ore deposit 3 and the lean ore deposit 5, specifically, the mother liquor collecting channels 13 are formed by using a geological drilling rig to drill holes in the mountain according to the run of the lode, the drilling direction should have a certain uptilt angle to facilitate gravity flow of the mother liquor. Hole depth may be flexibly adjusted according to actual conditions, diameters of the mother liquor collecting channels 13 are 75 mm, and spacing between the adjacent mother liquor collecting channels 13 is 4 m; diameters of the liquor collecting pipes 6 is 40 mm. The circles of small holes 12 are arranged on the liquor collecting pipes 6 at the interval of 0.1 m; and length of the clay 14 tamped to the end of each of the mother liquor collecting channels 13 facing the liquor collecting manifold 7 between each of the mother liquor collecting channels 13 and the corresponding liquor collecting pipe 6 is generally set to be 1 m.
[0024] In general, the high-pressure extraction solution in the step 7) in the embodiment may be input into the jet flow drill pipe of the hydraulic rock-breaking drill bit 9 through the extraction solution branch pipe 11, and the extraction solution branch pipe 11 is located outside tops of the jet flow drill holes 2, and is in communication with a liquor injecting manifold 8 for supplementing the extraction solution.
[0025] In the present embodiment, an impervious barrier may be further arranged below the liquor collecting pipes 6. The impervious barrier is mainly used to prevent the mother liquor from continuing to permeate downwards, which is unfavorable for the collection of the mother liquor. The impervious barrier may be omitted if a impermeable rock bed exists within about 2 m below the liquor collecting pipes 6. If no impermeable rock bed exists nearby, one can employ, for example, cement grouting to form an impervious shell, or high-pressure water injection to raise ground water level, as the impervious barrier.
[0026] The present invention can greatly reduce the electricity consumption, labor cost and raw material consumption needed per ton of rare-earth products, and has the following advantages:
(1) it utilizes the mining unit modules to divide the rare-earth ore body, and in the mining unit modules, the cylindrical slurry-state rare-earth ore body is formed by using the high-pressure jet flow, resulting in systematic, efficient and gradual recovery of resources;
(2) The increase of the concentration of the mother liquor will greatly increase the production of the rare earths, and the leaching of the slurry-state ore body increases the concentration of the mother liquor, thus providing higher grade of the rare earths contained in the rare earth solution flowing out of the liquor collecting manifold 7, high leaching speed, reduced amount of the solution used, and accelerated mining speed;
(3) The extraction solution is directly used to form a high-pressure waterjet flow to cut the ore body, and meanwhile, the rare-earth mineral may be agitated, pulpified and extracted by moving the jet flow drill bit up and down;
(4) During the implementation process, according to effluent concentrations of the liquor collecting pipes 6, the injection amount of the extraction solution may be adjusted, and it may be defined whether the ore body of the mining unit module is sufficiently extracted, thereby controlling the ineffective flow of the extraction solution and blind injection, and controlling the use amount according to design requirements in a timely manner; and (5) The inside of the ore body may be properly filled or cemented after the mining is completed, so as to realize the restoration of the mine ecological environment and the groundwater resources, prevent the mountain from collapsing and landslide, and protect the ecological environment.
[0027] The above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications and equivalent changes made to the above embodiments according to the technical essence of the present invention should fall within the protection scope of the present invention.
Claims (8)
1) ascertaining an ore deposit, wherein distribution of a rare-earth ore deposit and thickness of the ore deposit in a mountain are ascertained;
1. A rotary jet-grouting modular rare-earth mining process, comprising the following steps:
2. The rotary jet-grouting modular rare-earth mining process according to claim 1, wherein area of the mining unit module is 10-20 m .
2) performing grid unit module division on an ore body at top of the mine, so as to form several mining unit modules;
3. The rotary jet-grouting modular rare-earth mining process according to claim 1, wherein the jet flow drill holes (2) are arranged in center of the mountain of the mining unit module, and diameters of the jet flow drill holes (2) are not less than 32 mm.
3) arranging jet flow drill holes (2) in the mountain of each of the mining unit modules, wherein depths of the jet flow drill holes (2) reach bottom of a rich ore deposit (3) from a topsoil (1);
4. The rotary jet-grouting modular rare-earth mining process according to claim 1, wherein diameters of the mother liquor collecting channels (13) are 75 mm, and spacing between the adjacent mother liquor collecting channels (13) is 4 m.
4) arranging drill holes at junction of the bottom of the rich ore deposit (3) and a lean ore deposit (5) according to run of a lode, so as to form a plurality of mother liquor collecting channels (13), wherein each of the mother liquor collecting channels (13) is in communication with the jet flow drill holes (2) below the several mining unit modules;
5. The rotary jet-grouting modular rare-earth mining process according to claim 4, wherein diameters of the liquor collecting pipes (6) are 40 mm, and the circles of small holes (12) are arranged on the liquor collecting pipes (6) at the interval of 0.1 m.
5) arranging a liquor collecting manifold (7) outside the mountain, wherein the liquor collecting manifold (7) is located below ports of the mother liquor collecting channels (13) and arranged obliquely along the mountain, and the liquor collecting manifold (7) is connected to ports of all liquor collecting pipes (6) and flows to mountain foot;
6. The rotary jet-grouting modular rare-earth mining process according to claim 1, wherein length of the clay (14) tamped to the end of each of the mother liquor collecting channels (13) facing the liquor collecting manifold (7) between each of the mother liquor collecting channels (13) and the corresponding liquor collecting pipe (6) is 1 m.
6) arranging the liquor collecting pipes (6) in the mother liquor collecting channels (13) , wherein the liquor collecting pipes (6) are provided with circles of small holes (12) in circumferential direction at a certain interval and are wrapped with 3-4 layers of linen (15) at the small holes (12), one end of each of the liquor collecting pipes (6) is sealed and extends deeply to bottom of the corresponding mother liquor collecting channel (13), the other end of each of the liquor collecting pipes (6) is connected to the liquor collecting manifold (7), and the end of each of the mother liquor collecting channels (13) facing the liquor collecting manifold (7) is tamped and sealed with clay (14) between each of the mother liquor collecting channels (13) and the corresponding liquor collecting pipe (6); and
7. The rotary jet-grouting modular rare-earth mining process according to anyone of claims 1-6, wherein the high-pressure extraction solution is input into a jet flow drill pipe of the hydraulic rock-breaking drill bit (9) through an extraction solution branch pipe (11), and the extraction solution branch pipe (11) is located outside tops of the jet flow drill holes (2), and is in communication with a liquor injecting manifold (8).
7) sending a hydraulic rock-breaking drill bit (9) into each of the jet flow drill holes (2) at a position which is 0.4 m away from hole bottom, inputting a high-pressure extraction solution, rotating the hydraulic rock-breaking drill bit (9) at high speed to cut the surrounding rare-earth ore body, gradually lifting the hydraulic rock-breaking drill bit (9) up to top of the rich ore deposit (3) to form a cylindrical slurry-state rare-earth ore body (4) in each of the jet flow drill holes (2), then agitating and leaching the slurry-state rare-earth ore body (4) by moving the hydraulic rock-breaking drill bit (9) up and down to form the to-be-collected mother liquor, and pooling the mother liquor into the liquor collecting manifold (7) via the lower mother liquor collecting channels (13) and liquor collecting pipes (6), so as to complete collection of the mother liquor.
8. The rotary jet-grouting modular rare-earth mining process according to anyone of claims 1-6, wherein an impervious barrier is further arranged below the liquor collecting pipes (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611069486.XA CN106591606B (en) | 2016-11-29 | 2016-11-29 | A kind of churning modular rare earth mining methods |
| CN201611069486.X | 2016-11-29 | ||
| PCT/CN2016/109294 WO2018098845A1 (en) | 2016-11-29 | 2016-12-09 | Rotary jet-grouting modular rare-earth mining process |
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| AU2016431138A1 true AU2016431138A1 (en) | 2019-07-11 |
| AU2016431138B2 AU2016431138B2 (en) | 2019-11-07 |
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| CN110685693A (en) * | 2019-10-25 | 2020-01-14 | 江西离子型稀土工程技术研究有限公司 | Ion type rare earth in-situ leaching ore closure liquid collecting device and using method thereof |
| CN111020184B (en) * | 2019-12-13 | 2021-08-10 | 四川共拓岩土科技股份有限公司 | Radiation hole jet type rare earth collecting method |
| CN112699618B (en) * | 2020-12-18 | 2023-01-17 | 赣江新区澳博颗粒科技研究院有限公司 | Numerical simulation method for in-situ leaching process of ionic rare earth ore |
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| CN104694746B (en) * | 2015-03-25 | 2016-10-26 | 江西理工大学 | A kind of method of ion adsorption type re in_situ leaching and leaching ore deposit system thereof |
| CN104711420B (en) * | 2015-03-31 | 2017-05-03 | 武汉工程大学 | In-situ leaching and liquid collecting method for weathered crust leaching-deposited rare-earth ore |
| CN105132681B (en) * | 2015-09-11 | 2017-10-17 | 四川共拓岩土科技股份有限公司 | A kind of method of ecological environmental pollution during reduction In-situ leaching mining |
| CN106077074B (en) * | 2016-07-26 | 2017-12-15 | 湖南恒凯环保科技投资有限公司 | A kind of in-situ remediation method of deep layer heavy-metal contaminated soil |
-
2016
- 2016-11-29 CN CN201611069486.XA patent/CN106591606B/en active Active
- 2016-12-09 WO PCT/CN2016/109294 patent/WO2018098845A1/en active Application Filing
- 2016-12-09 AU AU2016431138A patent/AU2016431138B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN106591606A (en) | 2017-04-26 |
| WO2018098845A1 (en) | 2018-06-07 |
| AU2016431138B2 (en) | 2019-11-07 |
| CN106591606B (en) | 2018-11-06 |
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