CN211755937U - Coastal zirconite sand mining and selecting platform - Google Patents
Coastal zirconite sand mining and selecting platform Download PDFInfo
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- CN211755937U CN211755937U CN202020215836.4U CN202020215836U CN211755937U CN 211755937 U CN211755937 U CN 211755937U CN 202020215836 U CN202020215836 U CN 202020215836U CN 211755937 U CN211755937 U CN 211755937U
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Abstract
The utility model discloses a coastal zirconite sand mining and sorting platform, which comprises a twisting and sucking assembly, a twisting and sucking floating platform, a spiral chute mineral processing system, a material pipeline pumping system, a mineral processing floating platform, a generator set and a power generation floating platform; the assembly is inhaled to the hank is fixed to be set up on the hank inhales floating platform, spiral chute ore dressing system and material pipeline pumping system set up on ore dressing floating platform, generating set sets up on electricity generation floating platform, the hank is inhaled floating platform and is located the both sides of ore dressing floating platform respectively with electricity generation floating platform, generating set passes through the cable and inhales assembly and spiral chute ore dressing system power supply to the hank, the hank is inhaled the output of assembly and is passed through material pipeline pumping system and be connected with spiral chute ore dressing system's input, spiral chute ore dressing system's output and concentrate pipeline and row's tail system connection. The utility model has the characteristics of spatial layout is reasonable, can broken hard bed and adopt to select efficiently.
Description
Technical Field
The utility model relates to a coastal mining technical field, concretely relates to coastal zirconite sand selects platform.
Background
At present, coastal zirconium-titanium sand ore resources are developed and utilized at home and abroad, and are basically shoveled and excavated by using shore-based mechanical equipment or pumped and collected by a sea surface sand suction boat by 1, and then are conveyed to a nearby ore dressing base for sorting; 2. a simple and crude collecting and selecting hull transformed from a small barge, and directly installing collecting and screening equipment on the barge or a floating body platform; although the investment is saved, the material conveying and backfilling cost is high, and the production capacity and the production efficiency are relatively low; particularly, after infrastructure falls behind, energy supply is lacked, and the coast of African coast with complex geological hard bed is difficult to effectively improve the mining and sorting efficiency of the zirconite sand.
Most coastal zirconite areas on the coast of the Mediterranean and Atlantic coast are far away from cities and lack energy supply, if power generation equipment is arranged on a shore base, power can be transmitted to a near-shore mining floating platform only through a cable, but the power transmission distance is continuously changed due to the fact that the mining floating platform needs to be moved, so that power transmission is inconvenient and loss is huge, and the power is reduced by 1w when the distance is increased by 1m in actual measurement; if the power equipment is arranged on the picking and selecting platform, a certain space of the floating body is occupied, the loading weight is increased, and the arrangement problems of draught depth, gravity balance, integral stability and the like of the floating body need to be solved. If the floating body platform is too heavy and has too deep draft, the floating body platform is easy to be stranded; if the balance is lacked due to the loading eccentricity of the floating platform, the floating platform is easy to overturn.
At present, most of coastal zirconium-titanium ore sand collection facilities of a floating body platform type adopt a pump suction principle to suck soft sand ore materials into a material conveying pipe through a sand suction pipe; the method is suitable for the areas with soft sand layers and less hard impurities, and can be matched with the injection and suction device to treat the sediment layer with certain hardness. However, in the zirconium-titanium ore areas on the coast of the African Mediterranean and Atlantic countries, the bottom layer structure is various and complex, and the zirconium-titanium ore areas often contain dense and substantially hard shell hard layers, so that the traditional coastal zirconium-titanium ore sand collection facilities cannot smoothly collect zirconium-titanium ore.
The existing tailings disposal after sea zircon ore sand mining and dressing basically adopts a mode of firstly stacking and then backfilling, most coastal dunes in most zircon ore areas on the coast of the African Atlantic are natural barriers for preventing seawater from flowing backward to inland, and the mode of firstly picking and then backfilling easily causes the loosening and the breach of a coastal wave-proof sand bank and serious ecological environment events.
In view of the above, the applicant has made an intensive study on the above-mentioned defects in the prior art, and has made this invention.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a coastal zirconium titanium ore sand adopts selects platform, and it is reasonable that it has spatial layout, can broken hard bed and adopt the efficient characteristics of selection.
In order to achieve the above purpose, the solution of the present invention is:
a coastal zirconite sand mining and dressing platform comprises a cutter suction assembly, a cutter suction floating platform, a spiral chute ore dressing system, a material pipeline pumping system, an ore dressing floating platform, a generator set and a power generation floating platform; the power generation device is characterized in that the cutter suction assembly is fixedly arranged on the cutter suction floating platform, the spiral chute ore dressing system and the material pipeline pumping system are arranged on the ore dressing floating platform, the power generation unit is arranged on the power generation floating platform, the cutter suction floating platform and the power generation floating platform are respectively positioned on two sides of the ore dressing floating platform, the power generation unit supplies power to the cutter suction assembly and the spiral chute ore dressing system through cables, the output end of the cutter suction assembly is connected with the input end of the spiral chute ore dressing system through the material pipeline pumping system, and the output end of the spiral chute ore dressing system is connected with a concentrate conveying pipeline and a tail discharge system.
Furthermore, at least one of the cutter suction floating platform, the ore dressing floating platform and the power generation floating platform is formed by connecting a plurality of groups of steel plate floating boxes in parallel and fixedly at certain intervals by connecting pieces.
Furthermore, the ore dressing floating body platform is formed by connecting 4-6 groups of steel plate floating boxes in parallel and fixedly at certain intervals by connecting pieces.
Further, the cutter suction floating platform and the power generation floating platform respectively correspond to two sides of the ore dressing floating platform with short edges.
Further, the spiral chute mineral processing system comprises a plurality of groups of first spiral chutes, a plurality of groups of second spiral chutes and a plurality of groups of third spiral chutes, wherein the input end of the first spiral chute is connected with the slurry pump, and the first spiral chute is provided with a first tailing outlet and a first middling outlet; the first medium sand outlet is connected with the input end of the second spiral chute through a medium sand pump, the second spiral chute is provided with a first concentrate outlet, a second medium sand outlet and a second tailing outlet, the second medium sand outlet is connected with the input end of the third spiral chute through a medium sand pump, the third spiral chute comprises a second concentrate outlet, a third medium sand outlet and a third tailing outlet, and the third medium sand outlet is connected with the input end of the third spiral chute through a medium sand pump; the first concentrate outlet and the second concentrate outlet are connected with a concentrate conveying pipeline through a concentrate pump, and the first tailing outlet, the second tailing outlet and the third tailing outlet are connected with a tailing discharging system through a tailing pump.
Further, the spiral chute ore dressing system comprises 18-24 groups of spiral chutes, and the number ratio of the first spiral chute, the second spiral chute and the third spiral chute is 3:2: 1.
Furthermore, two generator sets are arranged on the power generation floating body platform, and ground wires of the generator sets are connected with a shore-based grounding box along the concentrate conveying pipeline.
And furthermore, a hoisting system for dragging the moving and selecting platform is arranged on the selecting platform.
Further, the tailing discharging system comprises a tailing automatic flow groove and a tailing discharging pipeline, the tailing automatic flow groove is connected with an automatic flow pipeline, and a part of tailings automatically flow through the automatic flow groove and the automatic flow pipeline and are discharged to the water; the tail discharge pipeline is connected with a tail sand pump, and the tail end of the tail discharge pipeline extends to the bank.
A mining and selecting process of a coastal zirconite sand mining and selecting platform comprises the following steps:
firstly, a cutter suction floating platform, a mineral separation floating platform and a power generation floating platform are arranged in a water area of a mine area, and a cutter suction assembly, a spiral chute mineral separation system, a generator set and a material pipeline pumping system are installed;
moving the mining and selecting platform to a mining area, generating power by a generator set and supplying power to the cutter-suction assembly and the spiral chute ore-selecting system; the cutter-suction assembly is used for grinding and extracting an ore deposit and conveying the ore deposit into a spiral chute ore dressing system through a material pipeline pumping system;
thirdly, the slag slurry obtained by the spiral chute ore dressing system through twisting and suction is sorted, the concentrate is conveyed to the shore through a concentrate conveying pipeline for filtering and stacking, and a part of tailings are directly drained to the water surface to fill a mine lake goaf; and pressurizing a part of tailings by a tailing pump, and conveying the tailings to a shore through a tailing discharge pipeline to re-fill the beach or build a breakwater.
After the structure of the oil field is adopted, the utility model relates to a coastal zirconite sand adopts selects platform, it has following beneficial effect at least:
the power generation system comprises a power generation floating body platform, a power generation floating body platform and a power generation floating body platform.
Two, because generating set installs on independent electricity generation body platform, when the bank possesses the power supply condition, can break off being connected of electricity generation body platform and ore dressing body platform, use bank base power supply mode to go on, so, the utility model discloses an adopt and select the platform can compatible bank base power supply mode.
And thirdly, by arranging the cutter-suction assembly, the method can adapt to crushing of a solid geological hard layer so as to adapt to mining of zirconium-titanium ore areas in the Mediterranean African region and the Atlantic coastal region.
Compared with the prior art, the utility model has the characteristics of compact structure is intensive, it is convenient freely to remove, whole cost is practiced thrift, running cost is cheap, the hard bed is broken high-efficient, the pump capacity ratio is appropriate, the ore dressing enrichment nature is strong, the tailings is handled timely, is most suitable to coastal zirconium titanium ore sand especially african mediterranean and atlantic coastal zirconium titanium environmental resource, can realize the holistic precision mining of coastal zirconium titanium ore sand.
Drawings
Fig. 1 is the utility model relates to an overall structure schematic diagram of a coastal zirconite sand mining and selecting platform.
Fig. 2 is a schematic structural diagram of a beneficiation floating body platform.
Fig. 3 is a schematic diagram of ore dressing of a spiral chute ore dressing system.
Fig. 4 is a schematic structural diagram of a tailings gravity flow groove and a gravity flow pipeline.
In the figure:
a winching floating platform 1; a spiral chute ore dressing system 2; a first spiral chute 21; a second spiral chute 22; a third spiral chute 23; a beneficiation floating body platform 3; a steel plate buoyancy tank 31; a connecting member 32; a power generating buoyant platform 4; a tailings launder 51; gravity flow pipe 52.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
As shown in fig. 1 to 4, the present invention relates to a coastal zirconite sand mining and separation platform, which comprises a cutter suction assembly (not shown in the figure), a cutter suction floating body platform 1, a spiral chute ore dressing system 2, a material pipeline pumping system (not shown in the figure), an ore dressing floating body platform 3, a generator set (not shown in the figure) and a power generation floating body platform 4; the cutter suction assembly is fixedly arranged on the cutter suction floating platform 1, the spiral chute ore dressing system 2 and the material pipeline pumping system are arranged on the ore dressing floating platform 3, the generator set is arranged on the power generation floating platform 4, the cutter suction floating platform 1 and the power generation floating platform 4 are respectively positioned on two sides of the ore dressing floating platform 3, the generator set supplies power to the cutter suction assembly and the spiral chute ore dressing system 2 through cables, the output end of the cutter suction assembly is connected with the input end of the spiral chute ore dressing system 2 through the material pipeline pumping system, and the output end of the spiral chute ore dressing system 2 is connected with a concentrate conveying pipeline and a tail discharge system.
The material pipeline pumping system mainly comprises various pumps such as a slurry pump, a middling pump, a concentrate pump, a water replenishing pump and a tailing pump, and also comprises various pipelines and connecting flanges for connection.
Thus, the utility model relates to a coastal zirconite sand adopts selects platform will set up the hank respectively and inhale body platform 1, ore dressing body platform 3 and electricity generation body platform 4 and undertake the weight that the hank inhaled assembly, spiral chute ore dressing system 2 and generating set respectively, and the hank inhales body platform 1 and electricity generation body platform 4 and is located respectively ore dressing body platform 3's both sides, compact structure is intensive, it is more convenient to remove.
Because generating set installs on independent electricity generation body platform 4, when the bank possesses the power supply condition, can break off being connected of electricity generation body platform 4 and ore dressing body platform 3, use bank base power supply mode to go on, so, the utility model discloses an adopt and select the platform can compatible bank base power supply mode. By arranging the cutter-suction assembly, the cutter-suction assembly can be suitable for crushing a solid geological hard layer so as to adapt to the exploitation of zirconium-titanium ore areas in the Mediterranean African region and the Atlantic coastal region.
Preferably, at least one of the cutter suction floating platform 1, the ore dressing floating platform 3 and the power generation floating platform 4 is formed by connecting a plurality of groups of steel plate floating boxes 31 in parallel and fixedly at certain intervals by connecting pieces 32. Further, the connecting member 32 is a channel steel. Adopt a plurality of steel sheet flotation tanks 31 interval concatenation to form floating body platform, the part of constituteing floating body platform can be dismantled and transport, assembles to the operation scene again, simple to operate, and the flexibility ratio is high to can adjust steel sheet flotation tanks 31's quantity as required and adjust floating body platform's bearing area. Further, the average draft of the buoyant platform is 0.6 meters.
Preferably, the beneficiation floating body platform 3 is formed by connecting 4-6 groups of steel plate floating boxes 31 in parallel and fixing at certain intervals of width through connecting pieces 32, such as channel steel. The beneficiation buoyant platform 3 thus formed has a rectangular platform with two long sides and two short sides. The cutter suction floating platform 1 and the power generation floating platform 4 are respectively corresponding to two sides of the ore dressing floating platform 3 with short edges.
Preferably, the spiral chute beneficiation system 2 comprises a plurality of groups of first spiral chutes 21, a plurality of groups of second spiral chutes 22 and a plurality of groups of third spiral chutes 23, wherein an input end of the first spiral chute 21 is connected with a slurry pump (not shown in the figure), and the first spiral chute 21 is provided with a first tailing outlet and a first middling outlet; the first medium sand outlet is connected with the input end of the second spiral chute 22 through a medium sand pump, the second spiral chute 22 is provided with a first concentrate outlet, a second medium sand outlet and a second tailing outlet, the second medium sand outlet is connected with the input end of the third spiral chute 23 through a medium sand pump, the third spiral chute 23 comprises a second concentrate outlet, a third medium sand outlet and a third tailing outlet, and the third medium sand outlet is connected with the input end of the third spiral chute 23 through a medium sand pump; the first concentrate outlet and the second concentrate outlet are connected with a concentrate conveying pipeline through a concentrate pump, and the first tailing outlet, the second tailing outlet and the third tailing outlet are connected with a tailing discharging system through a tailing pump. Through setting up first chute platform, second chute platform and third chute platform can ore dressing the zirconium titanium ore sand in the selection sediment thick liquid high-efficiently.
Preferably, the spiral chute beneficiation systems 218-24 sets of spiral chutes, and the number ratio of the first spiral chute 21, the second spiral chute 22 and the third spiral chute 23 is 3:2: 1. Taking 18 sets of spiral chutes as an example, 9 sets of first spiral chutes 21, 6 sets of second spiral chutes 22 and 3 sets of third spiral chutes 23 are arranged on the beneficiation floating body platform 3. The input ends of the 9 groups of first spiral chutes 21 are connected with a slurry pump pipeline through an ore separator. Zirconium titanium ore sand raw materials enter the spiral chute through the uniform divider to carry out intercepting operation, the medium sand after the enrichment of first spiral chute 21 is carried to second spiral chute 22, second spiral chute 22 has three export and corresponds concentrate, medium sand and tailings respectively, the medium sand of second spiral chute 22 is selected through third spiral chute 23 again, third spiral chute 23 has three export and corresponds concentrate, medium sand and tailings respectively, the third medium sand export of third spiral chute 23 through the medium sand pump with the input of third spiral chute 23 is connected the medium sand and is carried out the heavy slip. First spiral chute 21, second spiral chute 22 and third spiral chute 23 balanced distribution improve zircaptite sand's ore dressing efficiency through the enrichment screening of three spiral chutes on ore dressing body platform 3.
Preferably, two generator sets are arranged on the power generation floating body platform 4, and ground wires of the generator sets are connected with a shore-based grounding box along a concentrate conveying pipeline. In order to ensure reliable and uninterrupted power supply, a mode of alternately supplying power by two generator sets is adopted, and the two generator sets are symmetrically arranged at the position of the other short edge of the ore dressing floating platform 3 corresponding to the cutter suction floating platform 1. In order to ensure the power supply safety, the whole ship is uniformly grounded, the ground wires are distributed to a shore base along with the concentrate conveying pipeline, and a movable grounding box is arranged on the shore. Furthermore, a lightning strip and a lightning net are arranged on the lighting lamp post at the top end of the picking platform; hand touch positions such as handrails and stairs of the picking and selecting platform are all designed in an insulating mode. The power transmission cable on the mining and selecting platform adopts a method of obviously laying along a cable bridge or a steel pipe; the illumination is located and adopts the top of selecting the platform, adopts led photovoltaic illumination in order to alleviate the power supply load, and the power transmission and distribution control box is located between two generators for various distribution device of regulation control.
Preferably, a hoisting system (not shown in the figure) for dragging and moving the collecting and selecting platform is arranged on the collecting and selecting platform. Of course, the picking platform may be moved by other driving means, such as a propeller drive system, or by a tugboat.
Preferably, the tailing discharging system comprises a tailing automatic flow groove 51 and a tailing discharging pipeline, the tailing automatic flow groove 51 is connected with a self-flowing pipeline 52, and a part of tailings automatically flow through the self-flowing groove and the self-flowing pipeline 52 and are discharged to the water; the tail discharge pipeline is connected with a tail sand pump, and the tail end of the tail discharge pipeline extends to the shore to convey tail sand to refill a beach or build a breakwater. Therefore, the utility model discloses an adopt and select the platform can reach to adopt promptly to select promptly the processing requirement of arranging promptly, can resume ecological environment fast, will fall to minimum to the ecological damage of original wave breaker.
A mining and selecting process of a coastal zirconite sand mining and selecting platform comprises the following steps:
firstly, a cutter suction floating platform 1, a mineral separation floating platform 3 and a power generation floating platform 4 are arranged in a water area of a mine area, and a cutter suction assembly, a spiral chute mineral separation system 2, a power generator set and a material pipeline pumping system are installed;
moving the mining and selecting platform to a mining area, generating power by a generator set and supplying power to the cutter-suction assembly and the spiral chute ore-selecting system 2; the cutter-suction assembly is used for grinding and extracting an ore deposit and conveying the ore deposit to the spiral chute ore dressing system 2 through a material pipeline pumping system;
thirdly, the spiral chute ore dressing system 2 sorts the slurry obtained by twisting and sucking, the concentrate is conveyed to the shore through a concentrate conveying pipeline for filtering and stacking, and a part of tailings are directly drained to the water surface to fill a mined-out area of the mine lake; and a part of tailings are pressurized by a tailing pump and are conveyed to the shore to refill the beach or build a breakwater through a tailing discharge pipeline made of rubber.
Thus, the utility model relates to a technique is selected in adopting of coastal zirconite sand selection platform, it has the timely characteristics of tailings treatment, adopts and selects platform simple to operate, has improved the efficiency of adopting the selection greatly.
Compared with the prior art, the utility model has the characteristics of compact structure is intensive, it is convenient freely to remove, whole cost is practiced thrift, running cost is cheap, the hard bed is broken high-efficient, the pump capacity ratio is appropriate, the ore dressing enrichment nature is strong, the tailings is handled timely, is most suitable to coastal zirconium titanium ore sand especially african mediterranean and atlantic coastal zirconium titanium environmental resource, can realize the holistic precision mining of coastal zirconium titanium ore sand.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (9)
1. A coastal zirconite sand mining and dressing platform is characterized by comprising a cutter-suction assembly, a cutter-suction floating platform, a spiral chute ore dressing system, a material pipeline pumping system, an ore dressing floating platform, a generator set and a power generation floating platform; the power generation device is characterized in that the cutter suction assembly is fixedly arranged on the cutter suction floating platform, the spiral chute ore dressing system and the material pipeline pumping system are arranged on the ore dressing floating platform, the power generation unit is arranged on the power generation floating platform, the cutter suction floating platform and the power generation floating platform are respectively positioned on two sides of the ore dressing floating platform, the power generation unit supplies power to the cutter suction assembly and the spiral chute ore dressing system through cables, the output end of the cutter suction assembly is connected with the input end of the spiral chute ore dressing system through the material pipeline pumping system, and the output end of the spiral chute ore dressing system is connected with a concentrate conveying pipeline and a tail discharge system.
2. The coastal zirconite sand mining and dressing platform of claim 1, wherein at least one of the cutter suction floating platform, the dressing floating platform and the power generation floating platform is formed by a plurality of groups of steel plate buoyancy tanks fixed in parallel at certain intervals by connectors.
3. The coastal zirconite sand mining and dressing platform of claim 1, wherein the floating platform for ore dressing is composed of 4-6 groups of steel plate floating boxes which are fixed in parallel at certain intervals by connecting pieces.
4. The coastal zirconite sand mining and dressing platform of claim 3, wherein said cutter suction float platform and said power generation float platform correspond to both sides of said ore dressing float platform having a short side, respectively.
5. The coastal zirconite sand mining platform of claim 1 wherein the spiral trough beneficiation system comprises a plurality of sets of first spiral troughs, a plurality of sets of second spiral troughs, and a plurality of sets of third spiral troughs, the input end of the first spiral troughs being connected to the slurry pump, the first spiral troughs having a first tailings outlet and a first middlings outlet; the first medium sand outlet is connected with the input end of the second spiral chute through a medium sand pump, the second spiral chute is provided with a first concentrate outlet, a second medium sand outlet and a second tailing outlet, the second medium sand outlet is connected with the input end of the third spiral chute through a medium sand pump, the third spiral chute comprises a second concentrate outlet, a third medium sand outlet and a third tailing outlet, and the third medium sand outlet is connected with the input end of the third spiral chute through a medium sand pump; the first concentrate outlet and the second concentrate outlet are connected with a concentrate conveying pipeline through a concentrate pump, and the first tailing outlet, the second tailing outlet and the third tailing outlet are connected with a tailing discharging system through a tailing pump.
6. The coastal zirconite sand mining platform of claim 5, wherein the spiral trough beneficiation system comprises 18-24 sets of spiral troughs, and the number ratio of the first, second, and third spiral troughs is 3:2: 1.
7. The coastal zirconite sand mining and dressing platform of claim 1, wherein two power generating sets are installed on the power generating float platform, and the ground line of the power generating sets is connected to the shore-based ground tank along the concentrate transportation pipeline.
8. The coastal zirconite sand mining and sorting platform of claim 1, wherein the mining and sorting platform is provided with a hoisting system for moving the mining and sorting platform.
9. The coastal zirconite sand mining platform of claim 1, wherein the tailings disposal system comprises a tailings gravity flow trough and a tailings disposal pipeline, the tailings gravity flow trough is connected with a gravity flow pipeline, and a part of tailings is gravity-discharged to the water through the gravity flow trough and the gravity flow pipeline; the tail discharge pipeline is connected with a tail sand pump, and the tail end of the tail discharge pipeline extends to the bank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020215836.4U CN211755937U (en) | 2020-02-26 | 2020-02-26 | Coastal zirconite sand mining and selecting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020215836.4U CN211755937U (en) | 2020-02-26 | 2020-02-26 | Coastal zirconite sand mining and selecting platform |
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| Publication Number | Publication Date |
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| CN211755937U true CN211755937U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020215836.4U Expired - Fee Related CN211755937U (en) | 2020-02-26 | 2020-02-26 | Coastal zirconite sand mining and selecting platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203313A (en) * | 2020-02-26 | 2020-05-29 | 福建省威远矿业有限公司 | Coastal zirconite sand mining and selecting platform and mining and selecting process thereof |
-
2020
- 2020-02-26 CN CN202020215836.4U patent/CN211755937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203313A (en) * | 2020-02-26 | 2020-05-29 | 福建省威远矿业有限公司 | Coastal zirconite sand mining and selecting platform and mining and selecting process thereof |
| CN111203313B (en) * | 2020-02-26 | 2023-11-03 | 福建省威远矿业有限公司 | Coastal zirconium titanium ore sand mining and selecting platform and mining and selecting process thereof |
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Granted publication date: 20201027 Termination date: 20210226 |