CN112412460A - Accurate mining system and mining method for steeply inclined phosphate rock - Google Patents
Accurate mining system and mining method for steeply inclined phosphate rock Download PDFInfo
- Publication number
- CN112412460A CN112412460A CN202011310771.2A CN202011310771A CN112412460A CN 112412460 A CN112412460 A CN 112412460A CN 202011310771 A CN202011310771 A CN 202011310771A CN 112412460 A CN112412460 A CN 112412460A
- Authority
- CN
- China
- Prior art keywords
- mining
- lane
- preparation system
- airway
- transport
- 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.)
- Granted
Links
- 238000005065 mining Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002367 phosphate rock Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 31
- 238000011084 recovery Methods 0.000 claims abstract description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract 2
- 239000011707 mineral Substances 0.000 claims abstract 2
- 238000005422 blasting Methods 0.000 claims description 11
- 238000007598 dipping method Methods 0.000 claims description 9
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 9
- 230000008901 benefit Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 229910019142 PO4 Inorganic materials 0.000 abstract description 7
- 239000010452 phosphate Substances 0.000 abstract description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 8
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Remote Sensing (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The embodiment of the invention discloses a mining preparation system and a mining method for steeply inclined phosphate ores, wherein the mining preparation system comprises a top plate and a bottom plate, a first mining surface and a second mining surface are arranged between the top plate and the bottom plate, a mineral seam is arranged between the first mining surface and the second mining surface, a first air return lane and a first transport lane are arranged at the first mining surface, a second air return lane and a second transport lane are arranged at the second mining surface, a mining loader and a transport machine are respectively arranged at the first mining surface and the second mining surface, the first transport lane and the second transport lane are both arranged close to the bottom plate, and the first air return lane and the second air return lane are both arranged close to the top plate. The mining preparation system and the mining method for the steeply inclined phosphate rock provided by the embodiment of the invention have the advantages that the layout of the mining preparation system is simple, the continuous mechanical production can be realized, the recovery rate is greatly improved, the depletion is greatly reduced, and the production efficiency is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of ore body mining, in particular to a mining preparation system and a mining method for steeply inclined phosphate ores.
Background
As phosphorite is transferred from the ground to the underground and is mined from shallow to deep, the problems that the recovery rate is greatly reduced, dilution is greatly increased, the production efficiency is greatly reduced, the safe production condition is continuously worsened, the economic benefit of a mine is continuously reduced and the like can occur by adopting the traditional room-column method, and therefore, an accurate mining system and a mining method suitable for steeply inclined phosphorite are urgently needed, particularly an accurate mining system and a mining method for phosphorite with a large inclination angle and a thick ore layer.
Disclosure of Invention
Therefore, the embodiment of the invention provides a preparation system and a mining method for steeply inclined phosphate ores, which aim to solve the problem that the recovery rate is greatly reduced due to the adoption of a traditional room-column method in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
according to a first aspect of the embodiment of the invention, a mining preparation system for steeply inclined phosphate ores is provided, which includes a top plate and a bottom plate, a first mining surface and a second mining surface are arranged between the top plate and the bottom plate, a seam is arranged between the first mining surface and the second mining surface, a first return airway and a first transport airway are arranged at the first mining surface, and a second return airway and a second transport airway are arranged at the second mining surface, wherein the first transport airway and the second transport airway are both arranged close to the bottom plate, and the first return airway and the second return airway are both arranged close to the top plate.
Further, the preparation system further comprises an intermediate roadway, and the intermediate roadway is arranged in the middle of the ore bed.
Further, the middle lane comprises a middle lane top plate and a middle lane bottom plate, and the middle lane top plate and the middle lane bottom plate are arranged in parallel with each other.
Furthermore, loose blasting holes are formed in the periphery of the middle lane and are uniformly distributed in the periphery of the middle lane.
Furthermore, the mining preparation system further comprises a mining loader which is arranged on the first mining surface and the second mining surface and used for mining the seam below the middle roadway.
Furthermore, the preparation system also comprises a hydraulic support, wherein the hydraulic support is arranged on the first mining surface and the second mining surface and supports the ore bed above the hydraulic support.
Further, the stoping and preparation system further comprises a first cut-out lane, and the first cut-out lane is communicated with the first transportation lane, the first return airway and the intermediate lane.
Further, the stoping and preparation system further comprises a second cut-out lane, and the second cut-out lane is communicated with the second transportation lane, the second return airway and the intermediate lane.
According to a second aspect of the embodiments of the present invention, there is provided a method for mining a steeply inclined phosphate rock, including:
arranging a first transport lane and a second transport lane in the ore bed close to the lower end of the bottom plate;
arranging a first return airway and a second return airway on one side of the ore bed close to the top plate;
arranging a middle lane at the middle position of the ore bed;
arranging a first open-cut tunnel which is communicated with the first transportation tunnel, the first return air tunnel and the intermediate tunnel;
and arranging a second cut tunnel which is communicated with the second transportation tunnel, the second return airway and the middle tunnel.
And further, stoping the ore bed below the middle lane by using a mining and loading machine, and stoping the ore bed above the middle lane by using a loosening and blasting ore drawing mode.
The embodiment of the invention has the following advantages:
the mining preparation system and the mining method for the steeply inclined phosphate rock provided by the embodiment of the invention have the advantages that the layout of the mining preparation system is simple, the continuous mechanical production can be realized, the recovery rate is greatly improved, the depletion is greatly reduced, the production efficiency is improved, in addition, due to the arrangement of the first recovery surface and the second recovery surface, the ore bed can be mined simultaneously, and the efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a plan view of a stoping process of a preparation system for steeply dipping phosphate ore according to an exemplary embodiment;
FIG. 2 is a plan view of a stoping process showing a steeply dipping phosphate ore preparation system with a sandwich layer according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a method of mining steeply dipping phosphate rock in accordance with an exemplary embodiment;
in the figure: 11. a top plate; 12. a base plate; 13. a first stoping face; 14. a second stope face; 15. a seam; 151. putting the ore layer; 152. ore deposit is arranged; 16. a first return airway; 17. a middle lane; 171. a middle lane roof; 172. a middle lane floor; 18. a first haulage roadway; 19. a second return airway; 20. a second transportation lane; 21. loosening and blasting holes; 22. and (4) interlayer.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The steeply inclined phosphate rock mentioned in the embodiment of the invention refers to the phosphate rock with the inclination angle of the ore bed larger than 45 degrees.
According to a first aspect of the embodiment of the present invention, there is provided a mining preparation system for steeply inclined phosphate ores, as shown in fig. 1, including a top plate 11 and a bottom plate 12, a first mining surface 13 and a second mining surface 14 are disposed between the top plate 11 and the bottom plate 12, a seam 15 is disposed between the first mining surface 11 and the second mining surface 14, a first return airway 16 and a first transportation airway 18 are disposed at the first mining surface 13, and a second return airway 19 and a second transportation airway 20 are disposed at the second mining surface 14, wherein the first transportation airway 18 and the second transportation airway 20 are both disposed near the bottom plate 12, and the first return airway 16 and the second return airway 19 are both disposed near the top plate 11.
The mining preparation system and the mining method for the steeply inclined phosphate rock provided by the embodiment of the invention have the advantages that the layout of the mining preparation system is simple, the continuous mechanical production can be realized, the recovery rate is greatly improved, the depletion is greatly reduced, the production efficiency is improved, in addition, due to the arrangement of the first recovery surface 13 and the second recovery surface 14, the ore bed 15 can be mined simultaneously, and the efficiency is greatly improved.
In some alternative embodiments, the preparation system further comprises an intermediate roadway 17, said intermediate roadway 17 being disposed at an intermediate position of said seam 15. By arranging the middle lane 17, blasting treatment can be conveniently carried out on the ore bed 15, and the ore bed 15 is loosened.
In some optional embodiments, the intermediate lane 17 comprises an intermediate lane top plate 171 and an intermediate lane bottom plate 172, the intermediate lane top plate 171 and the intermediate lane bottom plate 172 being arranged parallel to each other.
The middle lane 17 is provided with the middle lane top plate 171 and the middle lane bottom plate 172, so that the middle lane 17 can be protected and the safety can be ensured.
In some optional embodiments, the periphery of the middle lane 17 is provided with the loose blasting holes 21, and the loose blasting holes 21 are uniformly distributed on the periphery of the middle lane 17. Wherein the blastholes 21 can be used to loosen the entire seam 15.
In some alternative embodiments, as shown in fig. 2, the seam 15 further has a seam 22, an upper seam 151 is above the seam 22, and a lower seam 152 is below the seam 22, and the whole preparation system further includes a mining machine (not shown) disposed on the first mining face 13 and the second mining face 14 for mining the lower seam 152 below the middle lane 17. The upper ore layer 151 can be stoped by adopting a loose blasting ore drawing mode, and the full height of one-time mining is realized.
In some alternative embodiments, the preparation system further comprises hydraulic supports (not shown) disposed on the first and second faces 13, 14, supporting the seam 15 above the hydraulic supports. By arranging the hydraulic support, equipment and personnel in the mining process can be protected.
In some optional embodiments, the stopping system further comprises a first cut-out lane communicating the first transport lane 18, the first return air lane 16 and the intermediate lane 17. A second cut-out lane is also included, which communicates the second transport lane 20, the second return airway 19 and the intermediate lane 17. By providing the first cut lane and the second cut lane, ventilation of the entire preparation system is facilitated on the one hand, and mining of the seam 15 is facilitated on the other hand.
According to a second aspect of the embodiments of the present invention, there is provided a method for mining a steeply inclined phosphate rock, as shown in fig. 3, including:
s31, providing a first lane 18 and a second lane 20 in the seam 15 adjacent the lower end of the floor 12;
s32, arranging a first return airway 16 and a second return airway 19 on one side of the seam 15 close to the roof 11;
s33, arranging a middle lane 17 at the middle position of the ore bed 15;
s34, providing a first cut-off lane connecting the first transportation lane 18 and the first return air lane 16 and the intermediate lane 17;
and S35, arranging a second cut-off lane which is communicated with the second transportation lane 20, the second air return lane 19 and the middle lane 17.
By arranging the first stoping surface 13 and the second stoping surface 14, stoping can be performed on the ore bed 15 at the same time, so that the mining efficiency is improved, and in addition, as for how to transport the mined ore bed, reference can be made to the related technology in the prior art, and the description thereof is omitted here.
In some optional embodiments, the ore layer below the middle lane 17 is stoped by a loader, and the ore layer above the middle lane 17 is stoped by a loose blasting ore drawing mode. Wherein, the ore loosening and drawing mode can be carried out by adopting explosive and other modes.
By adopting the mining method, the mining method has the following advantages:
because of adopting mechanized operation and continuous transportation, the degree of mechanization can reach more than 98 percent, and the method has the advantage of high degree of mechanization; the yield per unit is high, the yield per unit of the ore layer with the thickness of five meters and below can reach 80-120 ten thousand tons/year or more, the thick ore layer with the thickness of more than 5 meters and less than 20 meters is adopted, and the yield per unit of the working surface can reach 120 plus 200 ten thousand tons/year or more; the recovery rate is high, the recovery rate of a working face can reach 90-95%, and the recovery rate of a mining area can reach 85-90%; and the method has the advantages of low dilution rate, low tunneling rate, good safety, good social benefit and the like.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The mining preparation system for the steeply inclined phosphate rock is characterized by comprising a top plate and a bottom plate, wherein a first recovery surface and a second recovery surface are arranged between the top plate and the bottom plate, a mine seam is arranged between the first recovery surface and the second recovery surface, a first return airway and a first transport airway are arranged at the first recovery surface, a second return airway and a second transport airway are arranged at the second recovery surface, the first transport airway and the second transport airway are both close to the bottom plate, and the first return airway and the second return airway are both close to the top plate.
2. The mining preparation system for steeply dipping phosphorite of claim 1, further comprising an intermediate roadway disposed at a middle position of the ore bed.
3. The mining preparation system for steeply dipping phosphorite of claim 2, wherein the middle lane comprises a middle lane top plate and a middle lane bottom plate, and the middle lane top plate and the middle lane bottom plate are arranged in parallel with each other.
4. The mining preparation system for the steeply inclined phosphate rock of claim 2, wherein the periphery of the middle lane is provided with the loose blasting holes, and the loose blasting holes are uniformly distributed on the periphery of the middle lane.
5. The mining preparation system for steeply dipping phosphorite of claim 2, further comprising a mining machine, wherein the mining machine is arranged on the first mining surface and the second mining surface and is used for mining the seam below the middle roadway.
6. The mining preparation system for steeply dipping phosphorite of claim 1, further comprising a hydraulic support, wherein the hydraulic support is disposed on the first mining surface and the second mining surface, and supports the mineral seam above the hydraulic support.
7. The mining preparation system for steeply dipping phosphorite of claim 2, further comprising a first cut-out lane, wherein the first cut-out lane is communicated with the first transportation lane, the first return airway and the intermediate lane.
8. The mining preparation system for steeply dipping phosphorite of claim 2, further comprising a second cut-out lane, wherein the second cut-out lane is communicated with the second transportation lane, the second return airway and the middle lane.
9. The mining method of the steeply inclined phosphate rock is characterized by comprising the following steps:
arranging a first transport lane and a second transport lane in the ore bed close to the lower end of the bottom plate;
arranging a first return airway and a second return airway on one side of the ore bed close to the top plate;
arranging a middle lane at the middle position of the ore bed;
arranging a first open-cut tunnel which is communicated with the first transportation tunnel, the first return air tunnel and the intermediate tunnel;
and arranging a second cut tunnel which is communicated with the second transportation tunnel, the second return airway and the middle tunnel.
10. The method for exploiting steeply inclined phosphate rock according to claim 9, wherein the ore layer below the middle lane is mined by a loader and the ore layer above the middle lane is mined by a loose blasting ore drawing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011310771.2A CN112412460B (en) | 2020-11-20 | 2020-11-20 | Accurate mining system and mining method for steeply inclined phosphate rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011310771.2A CN112412460B (en) | 2020-11-20 | 2020-11-20 | Accurate mining system and mining method for steeply inclined phosphate rock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112412460A true CN112412460A (en) | 2021-02-26 |
| CN112412460B CN112412460B (en) | 2022-12-20 |
Family
ID=74776970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011310771.2A Active CN112412460B (en) | 2020-11-20 | 2020-11-20 | Accurate mining system and mining method for steeply inclined phosphate rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112412460B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2919902A (en) * | 2002-03-28 | 2003-10-02 | BELLAIRS, Jennifer Annette | A method of blasting |
| CN102155226A (en) * | 2010-11-30 | 2011-08-17 | 淄博市王庄煤矿 | Roadway backfill mining method for coal seams with medium-high thickness |
| CN104234715A (en) * | 2014-07-16 | 2014-12-24 | 天地科技股份有限公司 | Large-mining-height dual-fully mechanized mining face stoping process |
| CN110439562A (en) * | 2019-08-22 | 2019-11-12 | 中拓均安(北京)矿山技术有限公司 | A kind of inclination phosphorus ore adopts Barebone and recovery method |
-
2020
- 2020-11-20 CN CN202011310771.2A patent/CN112412460B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2919902A (en) * | 2002-03-28 | 2003-10-02 | BELLAIRS, Jennifer Annette | A method of blasting |
| CN102155226A (en) * | 2010-11-30 | 2011-08-17 | 淄博市王庄煤矿 | Roadway backfill mining method for coal seams with medium-high thickness |
| CN104234715A (en) * | 2014-07-16 | 2014-12-24 | 天地科技股份有限公司 | Large-mining-height dual-fully mechanized mining face stoping process |
| CN110439562A (en) * | 2019-08-22 | 2019-11-12 | 中拓均安(北京)矿山技术有限公司 | A kind of inclination phosphorus ore adopts Barebone and recovery method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112412460B (en) | 2022-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104481539B (en) | From kerve tight-face blasting caved stopes | |
| CN108825237B (en) | A kind of special thick coal continuous milling machine divides excavating technology with the layering combined is filled | |
| CN102086765B (en) | High-sublevel multi-layer mining method of ultrathin copper ore body | |
| CN101368482B (en) | Novel technique of slight-pitch ore body overall mining method | |
| CN110359914B (en) | Safe and low-cost combined sublevel mining method for gently inclined medium-thickness ore body | |
| CN107387084A (en) | A kind of gob side entry retaining reduces the construction method for cutting top depth | |
| CN104141495A (en) | Filling mining method for gently inclined medium-thickness phosphate ore body | |
| CN108952716A (en) | A kind of more lane method for arranging in high seam coal wall | |
| CN102877848B (en) | Method for performing coal mining and gangue cementation stripe filling simultaneously | |
| CN114427463B (en) | Deep deposit downward approach type plate area partition unloading layering advanced pressure relief stoping method | |
| CN108547658B (en) | A kind of high inclination-angle ultra-thin coal seam spoil is from slipping backfilling goaf method | |
| CN102425431B (en) | Ultra-close coal layer mining roadway distributing method | |
| CN112412460B (en) | Accurate mining system and mining method for steeply inclined phosphate rock | |
| CN109026005A (en) | A kind of comprehensive mechanization falls mine stripping method | |
| CN105649627B (en) | A kind of single girdle coal-mining method of high-dipping | |
| CN109973094B (en) | Mine resource same-face full-mining local-filling mining method | |
| CN107237635B (en) | A kind of thick solid potassium salt mine recovery method of spy for once adopting full thickness | |
| CN108756880B (en) | A kind of high-dipping is crushed thin lode body boom-type roadheader recovery method | |
| CN111236944A (en) | Open-cast mining process suitable for multi-layer gentle-dip thin ore body | |
| CN112901170B (en) | Coal-aluminum joint mining method for shared working face | |
| CN110439562B (en) | Accurate mining system and mining method for inclined phosphate ore | |
| CN113294199B (en) | Method for arranging gas control roadway under mining of lower protective layer | |
| CN115387844A (en) | Advanced pre-extraction outburst prevention method for initial mining area of outburst coal seam working face | |
| CN111022054B (en) | Adjacent equidirectional asynchronous mining open pit mine and mining method thereof | |
| CN104879128A (en) | Steep-dip ultra-thick coalbed mining technique based on top-coal advancing pre-detonation weakening |
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 |