CN116971779A - Underground mining, selecting and charging integrated system - Google Patents
Underground mining, selecting and charging integrated system Download PDFInfo
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- CN116971779A CN116971779A CN202310978664.4A CN202310978664A CN116971779A CN 116971779 A CN116971779 A CN 116971779A CN 202310978664 A CN202310978664 A CN 202310978664A CN 116971779 A CN116971779 A CN 116971779A
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- underground
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- chamber
- concentrating
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- 238000005065 mining Methods 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000011049 filling Methods 0.000 claims abstract description 27
- 238000000227 grinding Methods 0.000 claims description 26
- 239000006148 magnetic separator Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 238000007885 magnetic separation Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 abstract description 15
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 12
- 239000011707 mineral Substances 0.000 abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The invention relates to an underground mining, selecting and filling integrated system which comprises a pipeline well, a secondary well, a return air well, an auxiliary ramp, an underground stoping middle section, a mining transportation middle section and an underground concentrating mill, wherein the underground concentrating mill is positioned below the plane of the mining transportation middle section; the auxiliary well and the pipeline well are used for communicating the stope and the earth surface with the underground concentrating mill, and the wind flow can flow from the underground concentrating mill to the stope; mining and beneficiation equipment can be lowered from the secondary well to mining sites and concentrating mills; the middle section of mining transportation is provided with a water sump which is communicated with an underground concentrating mill through a pipeline. Compared with the prior art, the invention saves energy, ores are not lifted to the surface concentrating mill any more, and electric energy is saved; the air flow of the mineral processing factory is used as a part of the mining air flow, so that the surface air intake is reduced, the electric energy is saved, and the well diameter of an air inlet well is also reduced; the underground water sump water automatically flows to the beneficiation area, so that electric energy is saved. The tailing pulp and the iron concentrate pulp of the ore dressing main plant automatically flow to the water tailing chamber, so that electric energy is saved.
Description
Technical Field
The invention relates to the technical field of mining and mineral separation, in particular to an underground mining, selecting and filling integrated system.
Background
The existing ore mining engineering generally comprises underground mining, ground concentrating mills (crushing, grinding, sorting and filtering), selling production concentrates to a pellet mill or a sintering mill, and discharging the production tailings to a tailings pond or filling the production tailings to an underground goaf (mine adopting a filling method).
The pollution of noise, atmosphere, sewage, solid waste and the like generated by the surface concentrating mill has great influence on the environment. The occupied area is more. The land is particularly limited for land use, tourist attractions, urban areas and the like.
In view of this, the present invention has been made.
Disclosure of Invention
In view of the problems of the prior art that the pollution of noise, atmosphere, sewage, solid waste and the like generated in an overground concentrating mill has great influence on the environment, the invention provides an underground mining, separating and filling integrated system, which realizes the green mine technology of mineral mining, separating and processing and tailing treatment. The method has no pollution or little pollution to the surrounding environment, and solves the problems of occupying the ground of the concentrating mills and the tailing reservoirs and the potential safety hazard of the tailing reservoirs.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an underground mining, selecting and filling integrated system comprises a pipeline well, a secondary well, a return air well, an auxiliary ramp, a stope, a mining transportation section and an underground concentrating mill, wherein the underground concentrating mill is positioned below the plane of the mining transportation section;
the auxiliary well and the pipeline well are used for communicating the stope with the underground concentrating mill and the ground, and wind flow can flow from the underground concentrating mill to the stope;
the middle section of mining transportation is provided with a water sump which is communicated with an underground concentrating mill through a pipeline.
Preferably, the underground concentrating plant comprises a coarse crushing chamber, a pre-grinding ore storage chamber, a concentrating chamber and a water tail chamber which are connected in sequence, wherein the coarse crushing chamber is positioned below the ore discharging chamber in the middle section of mining transportation, and the water tail chamber is positioned below the concentrating chamber.
Preferably, a type crusher is arranged in the coarse crushing chamber.
Preferably, three sections of ore grinding equipment, classifying equipment and magnetic separation equipment are arranged in the ore dressing chamber.
Preferably, the three-stage ore grinding equipment is respectively a semi-autogenous mill for a first-stage ore grinding, an overflow type ball mill for a second-stage ore grinding and a VTM-1500 vertical mill for a third-stage ore grinding.
Preferably, the classifying equipment is 3673 wet type linear vibrating screen,A cyclone set,A cyclone bank.
Preferably, the magnetic separation equipment is a CTB-1245 permanent magnet drum magnetic separator, a CHCXJ24000 elutriation magnetic separator and a NCT-1245 permanent magnet drum magnetic separator respectively.
Preferably, ladder compartments are arranged in the auxiliary well and the return air well and are used for safety exits.
Preferably, the maximum gradient of the straight line section of the auxiliary ramp is 15%, and a gentle slope section is arranged at intervals of 300-400 m, wherein the gradient of the gentle slope section is 3%. For auxiliary transportation and for a safety exit.
Preferably, a tailing thickener is arranged in the water tail chamber, the tailing thickener is used for concentrating tailing slurry and then pumping the tailing slurry to a filling station arranged underground, the filling station is fully stirred with cement or gel powder to prepare filling materials, and the filling materials are filled into a goaf through a pipeline.
Compared with the prior art, the underground mining, selecting and filling integrated system provided by the invention has the beneficial effects that:
1. the underground mining, selecting and filling integrated system provided by the invention has the advantages that the concentrating mill is arranged underground, so that the occupied area of the surface concentrating mill is saved.
2. The underground mining, selecting and charging integrated system provided by the invention has the advantages that the underground concentrating mill is positioned below the middle section of mining transportation, and the extracted ore directly enters the crushing and selecting process of the underground concentrating mill through the transportation and the drop shaft.
3. The invention provides an underground mining, selecting and filling integrated system, which adopts a combined ventilation scheme, fresh air flow mainly enters from a pipeline well and a secondary well, and part of the air flow returns to a stope from the secondary well for continuous utilization after passing through a mineral separation chamber of an underground mineral separation plant; the fresh wind flow entering from the auxiliary well mainly enters the stope, and the invention utilizes the wind of the ore dressing chamber to continuously provide the stope for use, thus saving the operation cost and investment compared with the independent wind supply of ore dressing.
4. The underground mining, selecting and filling integrated system provided by the invention has the advantages that the main water source for mine production is underground drainage, underground water inflow and production wastewater are collected into the water sump of the horizontal transportation section, the water sump is used for mine production water after precipitation treatment, and the water sump is also used as a high-level fire-fighting water sump for production of a mineral dressing plant. The clear water in the water bin automatically flows to an underground concentrating mill for concentrating production and fire water.
5. The underground mining, selecting and filling integrated system provided by the invention saves energy. The ore is not lifted to the surface concentrating mill any more, so that electric energy is saved; the air flow of the mineral processing factory is used as a part of the mining air flow, so that the surface air intake is reduced, the electric energy is saved, and the well diameter of an air inlet well is also reduced; the underground water sump water automatically flows to the beneficiation area, so that electric energy is saved. The tailing pulp and the iron concentrate pulp of the ore dressing main plant automatically flow to the water tailing chamber, so that electric energy is saved.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of an underground mining, selecting and filling integrated system according to an embodiment of the present invention.
The figure is schematically shown as follows:
1. a measure well; 2. a mineral separation chamber; 3. a water accident pool; 4. a water tail chamber; 5. a second electrical chamber; 6. a tailing accident pool; 7. a large piece transfer chamber; 8. a mining transportation section; 9. a secondary well; 10. a first electrical chamber; 11. a tubing well; 12. an air return well; 13. a primary crushing chamber; 14. a laboratory; 15. a discharging chamber; 16. a disaster prevention chamber; 17. a belt gallery; 18. a pre-grinding ore storage chamber; 19. a first transfer station; 20. and a second transfer station.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
As shown in fig. 1, the underground mining, selecting and filling integrated system provided by the embodiment of the invention comprises a pipeline well 11, a secondary well 9, a return air well 12, an auxiliary ramp, a stope, a mining transportation section and an underground concentrating mill;
auxiliary well 9 is cage well, and auxiliary air intake is used as the passage for personnel to go into the well. The shaft is internally provided with a ladder which also serves as a safety outlet.
Piping well 11: concentrate conveying pipelines and tailing conveying pipelines are paved in the pipeline well 11 and serve as main air inlet channels of underground factories, and meanwhile serve as large factory-selecting piece descending channels.
Return air well 12: the mine shaft is provided with a ladder compartment which is also used as a safety outlet.
Auxiliary ramp for the up and down of trackless equipment. The maximum gradient of the straight line section of the ramp is 15%, and a gentle slope section is arranged at intervals of 300-400 m, wherein the gradient of the gentle slope section is 3%. Mainly responsible for the in-out and material transportation of large-scale trackless equipment in the pit and assisting in air intake, and simultaneously is responsible for the waste rock transportation tasks of basic construction and underground mining and filling unbalance.
In addition, a measure well 1 is also included as a channel for accelerating the mine construction progress.
In the above examples, the underground concentrating plant: the underground ore dressing plant is positioned below the level of the mining transportation middle section 8 by 30m, the underground space is fully utilized, and the materials are mainly arranged in a self-flowing way. The main chamber of the underground ore dressing plant consists of a coarse crushing chamber, a pre-grinding ore storage chamber 18, an ore dressing chamber 2, a water tail chamber 4, a water accident pool 3 and a tailing accident pool 6. Wherein the first electrical chamber 10 and the second electrical chamber 5 are distribution sites for all equipment in the underground concentrating plant. To ensure that the flow of people, logistics and wind of the underground concentrating plant is smooth, the auxiliary well 9, the conduit well 11 and the auxiliary ramp all extend to the underground concentrating plant. The wind flow of the underground concentrating mill enters from the pipeline well 11, and the auxiliary well 9 returns to the upper stope. The material during production in the concentrating mill is transported mainly by inclined ramp, and the auxiliary well 9 is lowered as an auxiliary. Wherein the coarse crushing chamber, the pre-grinding ore storage chamber 18, the ore dressing chamber 2 and the water tail chamber 4 are connected in sequence. The coarse crushing chamber is positioned below the ore unloading chamber 15 of the mining transportation section, and the water tail chamber 4 is positioned below the ore dressing chamber 2. In addition, the underground concentrating plant also comprises a laboratory 14, a disaster avoidance chamber 16, a belt corridor 17, a first transfer station 19, a second transfer station 20 and the like.
Only one section of coarse crushing is arranged in the coarse crushing chamber, and the jaw crusher is selected as crushing equipment. The granularity of the crushed ore is 250-0 mm. The broken wind is discharged to the ground through the return shaft 12.
The ore dressing chamber 2 adopts a semi-self-grinding process, wherein one semi-self-grinding mill is adopted as one section of ore grinding, 1 overflow ball mill is adopted as two sections of ore grinding, 60% of ore grinding fineness is 200 meshes, and 95% of ore grinding fineness of a VTM-1500 vertical mill (inlet) is adopted as three sections of vertical mills.
According to the mineral separation test, the mineral separation process flow adopts a self-grinding/semi-self-grinding process to feed the mineral particles, so that the process flow of the mineral separation plant is greatly simplified, the operation condition is improved, the labor intensity is reduced, the environment is more facilitated, and the capital cost for building the plant is reduced. The semi-self-grinding is preceded by an underground grinding front storage bin.
The ore dressing chamber 2 also comprises grading equipment which respectively adopts 3673 wet type linear vibrating screens, Cyclone set, < >>The cyclone group and the underground concentrating mill also comprise a CTB-1245 permanent magnetic drum type magnetic separator, a CHCXJ24000 elutriation magnetic separator and a NCT-1245 permanent magnetic drum type magnetic separator (concentrated magnetism) which are used as magnetic separation equipment.
And the concentration of the discharged iron concentrate in the ore dressing chamber 2 is 55%, the grade of the concentrate is 65%, and the concentrate flows to a concentrate stirring tank automatically. Concentrate pulp in the stirring tank is conveyed to a concentrate diaphragm pump set by the pressure of a concentrate feed pump, pressurized by the concentrate diaphragm pump set and conveyed to a surface concentrate filtering workshop. The concentrate conveying pipeline adopts 1 API-5L-X65 steel pipe, is vertically laid to the ground surface through a pipeline well 11, and is then buried in an iron concentrate filtering workshop.
The tailings slurry in the ore dressing chamber 2 is discharged to a tailings concentrating pond in the water tail chamber 4 through a tailings launder, tailings are concentrated to the concentration of 50% of underflow ore discharge concentration by a tailings concentrator arranged in the water tail chamber 4, finally cement or gel powder is mixed to prepare filling materials, the filling materials are filled into a goaf through filling pressurizing equipment, filling operation is completed, and the residual tailings are discharged out of the ground through a large transfer chamber 7.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Claims (10)
1. An underground mining, selecting and filling integrated system comprises a pipeline well, a secondary well, a return air well, an auxiliary ramp, a stope, a mining transportation section and an underground concentrating mill, and is characterized in that the underground concentrating mill is positioned below the plane of the mining transportation section;
the auxiliary well communicates the stope with the underground concentrating mill, and the air flow can flow from the underground concentrating mill to the stope;
the middle section of mining transportation is provided with a water sump which is communicated with an underground concentrating mill through a pipeline.
2. An underground mining and charging integrated system according to claim 1, wherein the underground concentrating mill comprises a coarse crushing chamber, a pre-grinding ore storage chamber, a concentrating chamber and a water tail chamber which are connected in sequence, wherein the coarse crushing chamber is positioned below an ore discharging chamber of the mining transportation section, and the water tail chamber is positioned below the concentrating chamber.
3. An underground mining and charging integrated system according to claim 2, wherein a jaw crusher is provided within the coarse crushing chamber.
4. An underground mining, selecting and charging integrated system according to claim 3, wherein three sections of ore grinding equipment, classifying equipment and magnetic separation equipment are arranged in the ore dressing chamber.
5. The underground mining, selecting and charging integrated system according to claim 4, wherein the three-section ore grinding equipment is a semi-autogenous mill for a first-section ore grinding, an overflow type ball mill for a second-section ore grinding and a VTM-1500 vertical mill for a third-section ore grinding.
6. An underground mining and charging integrated system according to claim 5, wherein the classifying devices are 3673 wet-type linear vibrating screens,Cyclone set, < >>A cyclone bank.
7. The underground mining and charging integrated system of claim 6, wherein the magnetic separation devices are CTB-1245 permanent magnet cartridge magnetic separator, CHCXJ24000 elutriation magnetic separator, and NCT-1245 permanent magnet cartridge magnetic separator, respectively.
8. The underground mining and charging integrated system of claim 7, wherein a ladder compartment is disposed in the auxiliary well and the return air well for a safety exit.
9. The underground mining and charging integrated system according to claim 8, wherein the maximum gradient of the straight line section of the auxiliary ramp is 15%, and a gentle slope section is arranged every 300 m-400 m, and the gradient of the gentle slope section is 3%.
10. The underground mining and filling integrated system according to claim 9, wherein a tailing thickener is arranged in the water tail chamber, the tailing thickener is used for pumping concentrated tailing slurry to an underground filling station, and the concentrated tailing slurry is fully stirred with doped cement or cement powder to prepare filling materials, and the filling materials are filled into a goaf through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310978664.4A CN116971779A (en) | 2023-08-04 | 2023-08-04 | Underground mining, selecting and charging integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310978664.4A CN116971779A (en) | 2023-08-04 | 2023-08-04 | Underground mining, selecting and charging integrated system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116971779A true CN116971779A (en) | 2023-10-31 |
Family
ID=88476484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310978664.4A Pending CN116971779A (en) | 2023-08-04 | 2023-08-04 | Underground mining, selecting and charging integrated system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116971779A (en) |
-
2023
- 2023-08-04 CN CN202310978664.4A patent/CN116971779A/en active Pending
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