CN113832342B - Complete artificial bottom plate manufacturing method and application - Google Patents
Complete artificial bottom plate manufacturing method and application Download PDFInfo
- Publication number
- CN113832342B CN113832342B CN202111214151.3A CN202111214151A CN113832342B CN 113832342 B CN113832342 B CN 113832342B CN 202111214151 A CN202111214151 A CN 202111214151A CN 113832342 B CN113832342 B CN 113832342B
- Authority
- CN
- China
- Prior art keywords
- main roadway
- main
- roadway
- rare earth
- access
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- C22B3/02—Apparatus therefor
-
- 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
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to the technical field of mining, and provides a complete artificial bottom plate construction method and application. The complete bottom plate provided by the invention leads out the rare earth mother liquor in a roadway access way without drilling a diversion hole, and waterproof cloth is laid at the bottom of the main roadway and the access way and is integrated at the bottom of an ore body, so that the leakage of the rare earth mother liquor is avoided, and the problem of overproof ammonia nitrogen of underground water is avoided. The complete bottom plate is applied to the in-situ leaching process of the ionic rare earth ore, so that the recovery rate of the rare earth can be greatly improved, the environmental pollution is avoided, and the economic benefit of mine enterprises is improved.
Description
Technical Field
The invention relates to the technical field of mining, in particular to a complete artificial bottom plate construction method and application.
Background
The granite or volcanic rock containing rare earth is weathered for many years to form clay mineral, and dissociated rare earth ions are adsorbed on the clay mineral by hydrated ions or hydroxyl hydrated ions, so that the clay mineral is called as ion adsorption type rare earth. The ion-adsorption type rare earth is a unique, precious, limited and non-renewable strategic resource in China, has the characteristics of high content of medium and heavy rare earth elements, simple extraction process, low radioactivity and the like, and is an important support material in the high and new technical field.
The main methods for mining the ion adsorption type rare earth at present are an in-situ ore leaching process technology and a heap leaching process technology. The heap leaching process is a method of pouring mineral leaching liquid on the surface of the piled mineral soil, making the mineral leaching liquid permeate downwards, selectively leaching useful components in the mineral, and recovering the useful components from rare earth mother liquor flowing out of the bottom of the heap. The heap leaching process needs to destroy vegetation and excavate mountain bodies, causes great damage to the environment, and only mines the mountain bodies rich in ion adsorption type rare earth in the range of a planning industrial park by the heap leaching process. For most of mountain bodies, the process adopted by the existing mining is an in-situ mineral leaching process, the process does not need to excavate the mountain body, only a liquid injection hole is constructed at a mineral part according to certain hole mesh parameters, mineral leaching liquid is injected, and then the liquid is collected at a bottom plate of the ore body. In the full-coverage type, the liquid collection adopts an artificial bottom plate technology, particularly, a roadway is arranged at the bottom plate of an ore body, a diversion hole is drilled on the roadway, and the rare earth mother liquid is collected through the diversion hole and the roadway.
Disclosure of Invention
In view of the above, the present invention provides a method for manufacturing and installing a complete artificial floor and its application. The complete artificial bottom plate provided by the invention is not easy to leak rare earth mother liquor, the excessive ammonia nitrogen is avoided, and the rare earth recovery rate is improved.
In order to achieve the above object, the present invention provides the following technical solutions:
a complete artificial bottom plate comprises a main roadway, a plurality of access ways arranged on two sides of the main roadway, and waterproof cloth paved at the bottom of the main roadway and the access ways;
the main roadway is positioned in the middle of the bottom plate of the ore body and penetrates through the mine mountain body; a liquid collecting ditch is arranged in the main roadway along the length direction of the main roadway, and a main pipeline is laid in the liquid collecting ditch;
one end of the access way is communicated with the main roadway, and the other end of the access way is positioned at the boundary of the ore body; in each route, a liquid collecting groove is arranged along the length direction of the route, a branch pipeline is laid in the liquid collecting groove and used for introducing the rare earth mother liquid in the route into the liquid collecting groove in the main roadway.
Preferably, the access is vertical to the main roadway; the access ways on the two sides of the main roadway are symmetrically arranged; the pavement laying density of one side of the main roadway is 1.0-1.2 m/strip.
Preferably, 5-10 access roads on one side of the main roadway are taken as a group, and a partition plate is arranged between every two adjacent access roads in each group; the distance between two adjacent groups of access ways is 5-6 m.
Preferably, the elevations of the two ends of the main roadway are higher than the elevation of the middle position of the main roadway; the gradient from any end of the main tunnel to the middle position of the main tunnel is 5-6 per thousand independently.
Preferably, a plurality of supports and protective beams are arranged in the main roadway, each support comprises two supporting upright columns and a top beam, and the protective beams are erected between the top beams of the adjacent supports.
Preferably, the waterproof cloth is attached to the bottoms of the liquid collecting ditches in the main roadway and the access road, and the main pipeline and the branch pipelines are arranged on the surface of the waterproof cloth in the liquid collecting ditches; the branch pipeline is a drilling twist pipe.
The invention also provides a manufacturing method of the ionic rare earth ore complete artificial bottom plate in the scheme, which comprises the following steps:
excavating a main roadway in the middle of the bottom plate of the ore body, and excavating the mountain body;
excavating access roads on two sides of the main roadway, wherein one end of each access road is communicated with the main roadway, and the other end of each access road is positioned at the boundary of the ore body;
digging a liquid collecting ditch in the approach, laying waterproof cloth and branch pipelines, digging a liquid collecting ditch in the main roadway, and laying the waterproof cloth and the main pipeline.
Preferably, after the main roadway is excavated, a support and a protective beam are arranged in the main roadway;
the digging and tunneling road group is excavated by adopting a method of mining one by one.
The invention also provides application of the complete bottom plate in the scheme in the mining of the ionic rare earth ore.
The invention also provides an in-situ ore leaching method, which comprises the following steps: a liquid injection hole is arranged downwards on the ground surface of the position with the ore of the ionic rare earth mine, and the complete artificial bottom plate is arranged at the bottom of the ore body;
and injecting mineral leaching liquid into the liquid injection hole for mineral leaching, collecting the generated rare earth mother liquid into a liquid collecting ditch of the main roadway from a branch pipeline of the complete artificial bottom plate, leading out the rare earth mother liquid from the main pipeline, and collecting the rare earth mother liquid from an outlet of the main roadway.
The invention provides a complete artificial bottom plate, which comprises a main roadway, a plurality of access ways symmetrically arranged on two sides of the main roadway, and waterproof cloth paved at the bottoms of the main roadway and the access ways; the main roadway is positioned in the middle of the bottom plate of the ore body and penetrates through the mine mountain body; a liquid collecting ditch is arranged in the main roadway along the length direction of the main roadway, and a main pipeline is laid in the liquid collecting ditch; one end of the access way is communicated with the main roadway, and the other end of the access way is positioned at the boundary of the ore body; in each route, a liquid collecting groove is arranged along the length direction of the route, a branch pipeline is laid in the liquid collecting groove and used for introducing the rare earth mother liquid in the route into the liquid collecting groove in the main roadway. The complete bottom plate provided by the invention leads out the rare earth mother liquor in a roadway access way without drilling a diversion hole, and waterproof cloth is laid at the bottom of the main roadway and the access way and is integrated at the bottom of an ore body, so that the leakage of the rare earth mother liquor is avoided, and the problem of overproof ammonia nitrogen of underground water is avoided. The complete bottom plate is applied to the exploitation of the ionic rare earth ore, the recovery rate of the rare earth can be greatly improved, the environmental pollution is avoided, and the economic benefit of mine enterprises is improved.
Drawings
FIG. 1 is a schematic structural diagram of an ionic rare earth ore complete artificial floor;
FIG. 2 is a schematic structural diagram of a main roadway;
fig. 3 is a cross-sectional view of a support pillar (a square reinforced concrete column);
in FIGS. 1 to 3: 1-rare earth ore, 2-route, 3-surface soil, 4-main roadway, 5-clapboard, 6-top beam, 7-protective beam, 8-supporting upright column, 9-mineral soil, 10-waterproof cloth, 11-main pipeline, 12-main roadway, 13-concrete, 14-stirrup and 15-longitudinal reinforcement.
Detailed Description
The invention provides a complete artificial bottom plate, which comprises a main roadway, a plurality of access ways arranged on two sides of the main roadway and waterproof cloth paved at the bottoms of the main roadway and the access ways, wherein the structural schematic diagram is shown in figure 1. This will be described in detail with reference to fig. 1.
In the invention, the main roadway is positioned in the middle of the bottom plate of the ore body and penetrates through the mine mountain body; in the main roadway, a liquid collecting ditch is arranged along the length direction of the main roadway, and a main pipeline is laid in the liquid collecting ditch. In the invention, the main roadway is preferably a rectangular roadway or a trapezoidal roadway, the height of the rectangular roadway is preferably 1.8m, the width of the rectangular roadway is preferably 1.2m, the height of the trapezoidal roadway is preferably 1.8m, the width of the top of the trapezoidal roadway is preferably 1.0m, and the width of the bottom of the trapezoidal roadway is preferably 1.2m.
In the invention, the elevation of the two ends of the main roadway is higher than the elevation of the middle position of the main roadway; the gradient from any end of the main roadway to the middle position of the main roadway is preferably 5-6 per thousand independently, namely, the main roadway is V-shaped.
In the invention, a plurality of supports and protective beams are preferably arranged in the main roadway, each support comprises two supporting upright columns and a top beam, the two supporting upright columns are respectively arranged at two sides of the main roadway, two ends of the top beam are respectively connected with the two supporting upright columns, and the joint of the top beam and the supporting upright columns is L-shaped; the supports are preferably uniformly arranged along the length direction of the main roadway, and the distance between every two adjacent supports is preferably 1m. In the invention, the supporting upright post is preferably a square reinforced concrete column or a wood supporting column; the square reinforced concrete column is preferably formed by adopting 4 pieces of phi 14mm deformed steel bars as longitudinal bars and connecting the longitudinal bars by phi 6mm round steel stirrups in a die casting manner; the specification of the supporting upright column is preferably 15cm multiplied by 15cm; in the invention, the top beam is preferably raw wood or a reinforced concrete column, and the reinforced concrete column is preferably formed by connecting and die-casting 4 round steel with phi 10mm serving as longitudinal reinforcements and hooping steel with phi 6mm round steel; the gauge of the top beam is preferably 12cm x 12cm. In the invention, the support plays a supporting role for the roadway.
In the invention, the protective beam is erected between the top beams of the adjacent brackets; the protective beam is preferably a round wood or reinforced concrete column; the diameter of the guard beam is preferably 6cm; the protective beam can support the mine soil at the top of the roadway and plays a role in protecting the top safely.
According to the invention, the bottom of the main roadway is paved with the waterproof cloth, and the waterproof cloth is used for completely covering the bottom of the main roadway to avoid leakage of rare earth mother liquor.
In the invention, the bottom of the main roadway is provided with a liquid collecting ditch along the length direction of the main roadway or the access road, the waterproof cloth is attached to the bottom of the liquid collecting ditch, and the main pipeline is arranged on the surface of the waterproof cloth in the liquid collecting ditch; specifically, the number of the liquid collecting grooves is one, and a main pipeline is arranged in each liquid collecting groove; the invention does not require the size of the gutter, which is preferably rectangular, and the size of the gutter is preferably 20cm × 20cm, so that the main pipeline can be placed. In the invention, the main pipeline is preferably a PVC pipe; the inner diameter of the PVC pipe is preferably 50mm.
In the present invention, a schematic structural diagram of the main roadway is shown in fig. 2, where in fig. 2: the cross section of the supporting upright column (square reinforced concrete column) is shown in figure 3, wherein the cross section of the supporting upright column (square reinforced concrete column) is shown in figure 3, and the cross section of the supporting upright column comprises 5-partition plates, 6-top beams, 7-protective beams, 8-supporting upright columns, 9-mineral soil, 10-waterproof cloth, 11-main pipelines and 12-main roadways: 13-concrete, 14-stirrup and 15-longitudinal bar.
In the invention, the access ways are arranged at two sides of the main roadway, one end of each access way is communicated with the main roadway, and the other end of each access way is positioned at the boundary of an ore body; in each inlet channel, a liquid collecting channel is arranged along the length direction of the inlet channel, a branch pipeline is arranged in the liquid collecting channel, one end of the branch pipeline is arranged at the boundary of the ore body, the other end of the branch pipeline is connected into the liquid collecting channel of the main roadway, and mother liquor in the branch pipeline flows into the liquid collecting channel in the main roadway from one end. In the invention, the access ways are preferably vertical to the main roadway, all the access ways are parallel to each other, and the access ways on two sides of the main roadway are preferably symmetrically arranged. In the invention, the height of the access is preferably 1.8m, the width is preferably 1.0m, in the invention, the width and the height of the access refer to the width and the height during excavation, in order to ensure safety during excavation, the access is excavated in sequence, and when a next access is excavated, the last access is filled and connected with the top by using excavated earthwork to prevent ground pressure and ensure safety, and the specific excavation method is explained in detail later; in a single access, a plurality of supports are preferably arranged, a protective beam is arranged between top beams of adjacent supports, and the arrangement mode, distance and specification of the supports and the protective beam are consistent with the arrangement mode in the main roadway and are not repeated herein.
In the invention, the bottom of the access road is provided with the waterproof cloth, and particularly, the waterproof cloth completely covers the bottom of the access road; in the present invention, the tarpaulin edges of adjacent routes are preferably adhered to each other.
In the invention, the bottom of the inlet is provided with a liquid collecting channel along the length direction of the inlet, the waterproof cloth is attached to the bottom of the liquid collecting channel, and the branch pipeline is arranged on the surface of the waterproof cloth in the liquid collecting channel; the number of the liquid collecting grooves is 1, and a branch pipeline is arranged in each liquid collecting groove; the invention has no requirement on the size of the liquid collecting channel, and the branch pipeline can be placed in the liquid collecting channel. In a particular embodiment of the invention, the catchment channel is preferably rectangular, and the catchment channel is preferably 20cm × 20cm in size. In the invention, the branch pipeline is preferably a drilled twist pipe, the drilled twist pipe is preferably made of PVC, and the inner diameter is preferably 25mm; in the embodiment of the invention, a linen sheet is preferably wound on the braided tube to filter the mother liquor and prevent rare earth mineral soil from blocking the small holes of the braided tube.
In the invention, the laying density of the access roads on one side of the main roadway is preferably 1.0-1.2 m/strip, 5-10 access roads on one side of the main roadway are taken as a group, a partition board is arranged between two adjacent access roads in the group, and the partition board is preferably a plywood; the distance between two adjacent groups of access roads is preferably 5-6 m; in the invention, the number of the access roads is determined according to the size of a mountain body, specifically, a plurality of access roads are uniformly arranged from one end to the other end of a main roadway, the access roads in the access roads are closely arranged, adjacent access roads are separated by a partition plate, and waterproof cloths of the adjacent access roads are mutually bonded, so that the waterproof cloths at the bottom of the ore body form a whole, and the leakage of rare earth mother liquor is avoided.
In the present invention, the tarpaulin is preferably a tarpaulin.
The invention also provides a manufacturing method of the ionic rare earth ore complete artificial bottom plate in the scheme, which comprises the following steps:
excavating a main roadway in the middle of the bottom plate of the ore body, and excavating the mountain body;
excavating access roads on two sides of the main roadway, wherein one end of each access road is communicated with the main roadway, and the other end of each access road is positioned at the boundary of the ore body;
digging a liquid collecting ditch in the access, laying waterproof cloth and branch pipelines, digging the liquid collecting ditch in the main roadway, laying the waterproof cloth and the main pipeline, and enabling the mother liquid in the branch pipelines to flow into the liquid collecting ditch in the main roadway.
According to the invention, a main roadway is excavated in the middle of the bottom plate of the ore body, and the mountain body is excavated through. In the present invention, the intermediate position of the ore body floor is preferably determined by geological exploration. The invention digs the mountain to be beneficial to ventilation, and preferably uses a small local fan or a blower to ventilate before digging. The invention preferably excavates from one side end of the main roadway in a slightly descending way, the elevation is lowest at the middle position of the mountain body, and then excavates in a slightly ascending way, so that the main roadway is in a V shape, and the gradient of the roadway meets the requirements of the scheme. In the specific embodiment of the invention, a surveying and mapping tool is preferably used for positioning when the main roadway is excavated, so that the excavation deviation is avoided, the access ways on two sides of the roadway are ensured to be mutually symmetrical, and the uneven stress is avoided.
After the mountain is excavated, a support and a protective beam are preferably arranged in the main roadway, the type and the specification of the support and the protective beam are consistent with the scheme, and the description is omitted; in a specific embodiment of the invention, preferably, a small ground pit is dug at a position of the bottom of the main roadway where the support needs to be erected, waterproof cloth is laid in the ground pit, then supporting columns are erected on the waterproof cloth, after the supporting columns are erected, two symmetrical supporting columns and a top beam are assembled, and a protective beam is erected on the top beam of two adjacent supporting columns.
After the support, the waterproof cloth and the like in the main roadway are arranged, the invention excavates the access ways at two sides of the main roadway, and stops excavating after the boundary of the ore body is excavated. In the present invention, the construction method of the access, the setting method of the support pillar and the guard beam are the same as those of the main roadway, and are not described herein again.
After the support and the protective beam in the approach are arranged, the invention excavates a liquid collecting ditch at the bottom of the approach, and after the digging, lays the waterproof cloth at the bottom of the approach, and lays the branch pipeline on the surface of the waterproof cloth in the liquid collecting ditch.
In the invention, preferably, a method of mining one by one is adopted to dig the tunneling road group, and a first access road is dug from the middle position of a main roadway, specifically: firstly, excavating a route in the middle of a main roadway and in a vertical main roadway, after a support, a protective beam, waterproof cloth and a branch pipeline are arranged, excavating another route in parallel at the adjacent position of the route, pouring excavated earthwork into the excavated adjacent route, isolating the adjacent routes by using a partition plate, connecting a roof, and sending the loose and redundant earthwork to the outside of a mountain to uniformly treat the fixed position. The method is adopted to excavate the access road, so that the ground pressure can be prevented, and the collapse can be prevented.
In the specific embodiment of the invention, preferably, 5 to 10 routes are dug by adopting a method of mining every other one, then a new route is dug by adopting a method of mining every other 5 to 6m, and the excavation is continued according to the method of mining every other one until all the routes at two sides of the roadway are dug completely.
In the present invention, when laying the tarpaulin, it is preferable to bond the tarpaulin between adjacent roads with an adhesive to prevent water leakage.
After the road is constructed, a liquid collecting ditch is dug at the bottom of the main roadway, waterproof cloth is paved at the bottom of the main roadway after the ditch is dug, and a main pipeline is arranged in the liquid collecting ditch.
After the main roadway and the access road are constructed, the access ports at two ends of the main roadway are preferably closed by the invention so as to prevent the danger caused by the mistaken entering of pedestrians.
In the present invention, the complete artificial floor is preferably constructed at a completely weathered seam position or a semi-weathered layer which is relatively easy to excavate in a mine.
The invention also provides application of the complete bottom plate or the complete bottom plate manufactured by the manufacturing method in the scheme in the exploitation of the ionic rare earth ore. The complete bottom plate provided by the invention is suitable for mining ion type rare earth ore, and more particularly suitable for collecting rare earth mother liquor in an in-situ leaching process of ion adsorption type complete-coverage rare earth ore deposit in the south.
The invention also provides an in-situ ore leaching method, which comprises the following steps: arranging a liquid injection hole at an ore part of the ionic rare earth mine, and arranging the complete artificial bottom plate in the scheme at the bottom of an ore body;
and injecting mineral leaching liquid into the liquid injection hole for mineral leaching, collecting the generated rare earth mother liquid into a liquid collecting ditch of the main roadway from a branch pipeline of the complete artificial bottom plate, leading out the rare earth mother liquid from the main pipeline, and collecting the rare earth mother liquid from an outlet of the main roadway.
In the invention, the ionic rare earth mine is preferably an ion adsorption type full-coverage rare earth mine, and the arrangement position and the arrangement method of the liquid injection hole are not particularly required, and the ion adsorption type full-coverage rare earth mine can be arranged by adopting a method well known by a person skilled in the art. The mineral leaching solution has no special requirement, and the mineral leaching solution well known to the skilled person can be adopted.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.
Example 1
In the embodiment, a rare earth mountain head with the diameter of 30-60 m is taken as an example, the average thickness of a surface soil layer is 2.5m, the average thickness of an ionic rare earth ore layer is 7m, the shape of the mountain head is circular, and the height difference from the mountain top to the mountain foot is 40m, so that the mountain head belongs to a full-coverage type. Geological exploration finds out that the ore-bearing layers exist in a total weathered layer, a semiweathered layer and bedrock exist below the total weathered layer, and the bedrock is buried deeply. According to the mining geological conditions, rare earth is leached by adopting an in-situ ore leaching process, and a complete artificial bottom plate is adopted for the bottom structure of the recovered mother liquor.
The manufacturing and installation method of the complete artificial bottom plate comprises the following steps:
1. a main roadway is excavated in the middle of the bottom plate of the ore body, and is rectangular, and the size of the main roadway is 1.8m (height) multiplied by 1.2m (width). The mountain is dug from one side to the other side, which is favorable for ventilation, and a small local fan (or a blower) is used for ventilation before the mountain is dug. The main roadway is excavated from one side end part with a slight descending gradient, the elevation of the main roadway is lowest at the middle position of a mountain body, then the main roadway is excavated with a slight ascending gradient of 5 per mill, and the main roadway is in a V shape as a whole. A surveying and mapping tool needs to be used for positioning during excavation of the main roadway, and deviation excavation cannot be carried out.
2. The roadway support column is made of square reinforced concrete columns, the specification of the column is 15cm multiplied by 15cm, 4 phi 14mm screw-thread steels are used as longitudinal bars, and phi 6mm round steel stirrups are connected with the longitudinal bars and are formed by die-filling and pouring. The top beam is 12cm multiplied by 12cm in specification, 4 round steel with phi 10mm are used as longitudinal ribs, and hooping bars of round steel with phi 6mm are connected and die-cast to form the roof beam. The joints of the upright columns and the top beams are L-shaped, so that the lap joints are convenient. The distance between the supports along the roadway direction is 1m, and the supports are used for supporting the mine soil at the top of the roadway by using phi 6cm protective beams (made of reinforced concrete) to play a role in protecting the top safely. When the upright posts are used for supporting, a small ground pit is dug, then 60cm x 60cm square waterproof canvas is laid, and then the upright posts are erected on the square waterproof canvas.
3. After the main lane is excavated, an access road is excavated to the vertical main lanes at two sides in the middle of the main lane, the access road specification is 1.8m (height) × 1.0m (width), and the construction method, the arrangement method of the supporting upright posts and the top beams are the same as the main lane. And stopping digging after the boundary of the ore body is dug. Digging a small liquid collecting ditch with a rectangle shape of 20cm multiplied by 20cm in the middle of the access bottom plate, paving waterproof canvas with the width of 2.0m after digging the ditch, paving a phi 25mmpvc drilled hemp pipe on the ditch, winding a hemp cloth piece on the hemp pipe, filtering mother liquid, and preventing rare earth mineral soil from blocking small holes of the hemp pipe to be used as a liquid collecting facility.
4. And another approach is dug in parallel at the adjacent position of the approach, the dug earthwork is poured into the adjacent approach which is dug and is bottomed, the approaches are isolated by plywood, the top is connected, and the loose and redundant earthwork is conveyed to a fixed position outside the mountain to be processed in a unified way.
5. And excavating 5-10 routes and processing, and then excavating new routes at intervals of 5-6 m, wherein the excavating method is the same as the method in the steps 3-4, in the excavating process, after the processed route top plate is stable, constructing the routes which are not excavated, and the waterproof canvas between the routes and the adjacent routes is well adhered by using adhesive to prevent water leakage.
6. Digging a small liquid collecting ditch at the bottom of the main roadway, paving waterproof canvas at the bottom of the main roadway, paving a phi 50mm inner diameter pvc pipe on the surface of the waterproof canvas in the small ditch as a main pipeline, converging the rare earth mother liquid in each branch pipeline in the inlet pipeline into the liquid collecting ditch in the main roadway, and uniformly guiding the mother liquid to a mother liquid transfer pool outside the mountain body by the main pipeline in the main roadway.
7. And closing the entrances and exits at two ends of the main roadway.
Experimental results show that the complete bottom plate is adopted to recover the rare earth mother liquor, mother liquor leakage can be prevented, the ammonia nitrogen of underground water is prevented from exceeding the standard, and the rare earth recovery rate is 98-99%.
The complete bottom plate provided by the invention is suitable for ion adsorption type full-coverage rare earth ore deposits, and through manufacturing the complete bottom plate and combining with an in-situ ore leaching process to leach rare earth mother liquor, the leakage of the rare earth mother liquor can be prevented, the rare earth recovery rate is greatly improved, the overproof ammonia nitrogen of underground water is avoided, the problem of environmental pollution is avoided, and the economic benefit of mine enterprises is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A complete artificial bottom plate comprises a main roadway, a plurality of access ways arranged on two sides of the main roadway, and waterproof cloth paved at the bottom of the main roadway and the access ways;
the main roadway is positioned in the middle of the bottom plate of the ore body and penetrates through the mine mountain body; a liquid collecting channel is arranged in the main roadway along the length direction of the main roadway, and a main pipeline is laid in the liquid collecting channel;
one end of the access way is communicated with the main roadway, and the other end of the access way is positioned at the boundary of the ore body; in each route, a liquid collecting channel is arranged along the length direction of the route, a branch pipeline is laid in the liquid collecting channel and used for introducing the rare earth mother liquor in the route into the liquid collecting channel in the main roadway; the branch pipelines are drilled twist pipes; a plurality of access groups are uniformly arranged from one end of the main roadway to the other end, accesses in the access groups are closely arranged, adjacent accesses are separated by partition plates, and waterproof cloths of the adjacent accesses are mutually bonded.
2. The full artificial floor according to claim 1, wherein the approach and the main roadway are vertical; the access ways on the two sides of the main roadway are symmetrically arranged; the pavement density of the access roads on one side of the main roadway is 1.0-1.2m/road.
3. The full-type artificial baseplate according to claim 1 or 2, wherein the lanes on one side of the main roadway are grouped into 5 to 10 lanes, and a partition plate is further arranged between two adjacent lanes in each group; the distance between two adjacent groups of access ways is 5-6 m.
4. The full artificial floor according to claim 1, wherein the elevation of both ends of the main roadway is higher than the elevation of the middle position of the main roadway; the gradient from any end of the main roadway to the middle position of the main roadway is 5~6 per thousand independently.
5. The full type artificial floor according to claim 1, wherein a plurality of supports and guard beams are arranged in the main roadway, each support comprises two support columns and a top beam, and the guard beams are arranged between the top beams of the adjacent supports.
6. The full type artificial floor according to claim 1, wherein the tarpaulin is attached to the bottom of the gutter in the main shaft and the inlet passage, and the main pipe and the branch pipe are provided on the surface of the tarpaulin in the gutter.
7. The method of constructing a full artificial floor panel of claim 1~6 comprising the steps of:
excavating a main roadway in the middle of the bottom plate of the ore body, and excavating the mountain body;
excavating access roads on two sides of the main roadway, wherein one end of each access road is communicated with the main roadway, and the other end of each access road is positioned at the boundary of the ore body;
digging a liquid collecting ditch in the inlet passage, laying waterproof cloth and branch pipelines, digging the liquid collecting ditch in the main roadway, and laying the waterproof cloth and the main pipeline.
8. The construction method according to claim 7, characterized in that after the excavation of the main roadway is completed, a support and a guard beam are arranged in the main roadway;
the digging and tunneling road group is excavated by adopting a method of mining one by one.
9. Use of the full-scale artificial floor of any one of claims 1~6 or the full-scale artificial floor manufactured by the manufacturing method of claim 7 or 8 in mining of ionic rare earth ores.
10. A method of in situ leaching of ore, comprising the steps of: arranging a liquid injection hole downwards on the ground surface of an ore part of the ionic rare earth mine, and manufacturing a complete artificial bottom plate according to any one of claims 1~6 at the bottom of an ore body;
and injecting mineral leaching liquid into the liquid injection hole for mineral leaching, collecting the generated rare earth mother liquid into a liquid collecting ditch of the main roadway from a branch pipeline of the complete artificial bottom plate, leading out the rare earth mother liquid from the main pipeline, and collecting the rare earth mother liquid from an outlet of the main roadway.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111214151.3A CN113832342B (en) | 2021-10-19 | 2021-10-19 | Complete artificial bottom plate manufacturing method and application |
| PCT/CN2022/120904 WO2023065967A1 (en) | 2021-10-19 | 2022-09-23 | Complete man-made bottom plate, manufacturing method therefor, and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111214151.3A CN113832342B (en) | 2021-10-19 | 2021-10-19 | Complete artificial bottom plate manufacturing method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113832342A CN113832342A (en) | 2021-12-24 |
| CN113832342B true CN113832342B (en) | 2023-03-24 |
Family
ID=78965368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111214151.3A Active CN113832342B (en) | 2021-10-19 | 2021-10-19 | Complete artificial bottom plate manufacturing method and application |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113832342B (en) |
| WO (1) | WO2023065967A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832342B (en) * | 2021-10-19 | 2023-03-24 | 赣州有色冶金研究所有限公司 | Complete artificial bottom plate manufacturing method and application |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126309B (en) * | 2007-09-30 | 2013-10-09 | 中国科学院武汉岩土力学研究所 | Horizontal fissure fluctuation leaching mining method |
| CN101936166B (en) * | 2010-08-03 | 2013-03-13 | 江西稀有金属钨业控股集团有限公司 | In-situ leaching, drainage and liquid collection process with diversion holes |
| CN101906536B (en) * | 2010-08-03 | 2012-01-04 | 江西稀有金属钨业控股集团有限公司 | On-site extraction, drainage and liquid collection process with auxiliary tunnels |
| CN102787236B (en) * | 2012-08-21 | 2014-02-12 | 江西稀有金属钨业控股集团有限公司 | Ion-absorbing type rare earth in-situ mineral leaching mother liquor recovery process |
| CN106381405B (en) * | 2016-09-23 | 2018-10-12 | 江西理工大学 | A kind of Rare-earth Mine liquor collecting system and method |
| CN108374097B (en) * | 2017-11-16 | 2020-06-30 | 江西离子型稀土工程技术研究有限公司 | Interception process for leaching solution of rare earth ore deposited by weathering crust in south China |
| US11186895B2 (en) * | 2018-08-07 | 2021-11-30 | University Of Kentucky Research Foundation | Continuous solvent extraction process for generation of high grade rare earth oxides from leachates generated from coal sources |
| CN112921173A (en) * | 2021-04-09 | 2021-06-08 | 江西理工大学 | South ionic rare earth in-situ leaching system and method |
| CN113832342B (en) * | 2021-10-19 | 2023-03-24 | 赣州有色冶金研究所有限公司 | Complete artificial bottom plate manufacturing method and application |
-
2021
- 2021-10-19 CN CN202111214151.3A patent/CN113832342B/en active Active
-
2022
- 2022-09-23 WO PCT/CN2022/120904 patent/WO2023065967A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN113832342A (en) | 2021-12-24 |
| WO2023065967A1 (en) | 2023-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204253054U (en) | Mountain tunnel stake arch cap excavation method comprehensive support structure | |
| CN102704957A (en) | Shed-frame method for shallowly burying large-sized underground structure construction | |
| CN110306593A (en) | A kind of station construction method | |
| CN104131565B (en) | A kind of against making the construction method that the earthwork is just made to excavate | |
| CN113175325B (en) | Coal and intergrown sandstone type uranium ore coordinated mining method based on key layer protection | |
| LU500273B1 (en) | New comprehensive dewatering and drainage method and drainage device for mudstone subway station | |
| CN103032097A (en) | Tunnel drainage structure applicable to water-rich strata under unsymmetrical pressure and construction method thereof | |
| CN112921173A (en) | South ionic rare earth in-situ leaching system and method | |
| CN104847365B (en) | A kind of small interval Four-Lane Road Shallow-buried Large-span Tunnel construction method | |
| CN106381405B (en) | A kind of Rare-earth Mine liquor collecting system and method | |
| CN113832342B (en) | Complete artificial bottom plate manufacturing method and application | |
| CN215163017U (en) | South ion type rare earth in-situ leaching system and liquid collecting pipe with dredger thereof | |
| CN210002425U (en) | structure of seepage roadbed side slope drainage system | |
| CN110777821B (en) | Method for treating water burst disaster of fissures of weathered rock slope | |
| CN110735641B (en) | Construction method of transfer passage of underpass pipeline | |
| CN111594168B (en) | Pseudo-goaf-layer supporting and sinking-limiting stoping method formed by matching rock waste with rock waste | |
| CN112983461A (en) | Construction method for bias tunnel portal in slope volume | |
| CN204646253U (en) | A kind of small interval Four-Lane Road Shallow-buried Large-span Tunnel structure | |
| CN215165817U (en) | Semi-covered excavation sequential city tunnel structure next to subway | |
| CN114592868A (en) | Ore mining structure and method under extremely-broken ore body condition | |
| CN207891914U (en) | Shallow-depth-excavation tunnel hole inner termination wall piled anchor one supporting construction | |
| CN212896427U (en) | Water-stop glass core wall structure with curtain grouting function | |
| CN111119231A (en) | Road structure of half roadbed and half tunnel and construction method thereof | |
| CN111749694B (en) | Collaborative mining method capable of mining under pressure | |
| CN218861614U (en) | A consolidate protection architecture that is used for shallow earthing shield tunnel to wear high-rise ancient building down |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |