CN1455842A - Mining system - Google Patents
Mining system Download PDFInfo
- Publication number
- CN1455842A CN1455842A CN01814520A CN01814520A CN1455842A CN 1455842 A CN1455842 A CN 1455842A CN 01814520 A CN01814520 A CN 01814520A CN 01814520 A CN01814520 A CN 01814520A CN 1455842 A CN1455842 A CN 1455842A
- Authority
- CN
- China
- Prior art keywords
- slurries
- mineral
- pumping unit
- unit
- mars miner
- 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.)
- Pending
Links
- 238000005065 mining Methods 0.000 title abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 38
- 238000005086 pumping Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 21
- 239000011707 mineral Substances 0.000 claims description 21
- 238000013467 fragmentation Methods 0.000 claims description 11
- 238000006062 fragmentation reaction Methods 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 241000270295 Serpentes Species 0.000 claims 2
- 210000001015 abdomen Anatomy 0.000 claims 2
- 239000003245 coal Substances 0.000 abstract description 21
- 238000012423 maintenance Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241001212149 Cathetus Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000003209 Podocarpus elatus Nutrition 0.000 description 1
- 244000155172 Podocarpus elatus Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
Images
Classifications
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/13—Devices for removing or hauling away excavated material or spoil; Working or loading platforms using hydraulic or pneumatic conveying means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Disintegrating Or Milling (AREA)
- Pipeline Systems (AREA)
Abstract
A mining system to convey mined materials (eg., coal) from a mining machine (10) to a remote location has a crushing unit (20) receiving the mined material from the mining machine (10) via a surge bin (21). The material is crushed and sized and mixed with water to form a slurry in a pumping unit (30). Slurry pipes (41-43) interconnect pumps (31-33) on the de-watering unit (50) to convey the slurry to the de-watering unit (50) from which it can be conveyed by fixed conveyors (60) to the remote location. The slurry pipes (41-43), and return water pipe(s) (51), have intermediate portions (41a-43a) suspended from a monorail (106) and/or mounted on a sled (206), and flexible end portions (41-43a, 41c-43c) to allow advance off the mining machine (20) along gateroads (101) and/or crossroads (103) in the mine.
Description
Technical field
The present invention relates to a kind of mining system.
The present invention be more particularly directed to a kind of mineral are transported to the method and apparatus that handle in remote place from Mars Miner.
More particularly, the present invention relates to but be not limited to a kind ofly comprise between the coal wall passage productive life method and apparatus that coal is carried continuously from face at underground passage.
In manual and claims, term " pipeline " will comprise pipeline, pipeline, conduit, pipe or the like.
Background technology
Usually, dig passage and turnout and enter the coal seam, thereby the longwell Mars Miner is extracted coal from seams.
Small-sized Mars Miner is opened up the tunnel in ore bed, and coal is transported to remote place, for example main tunnel or road by the shuttle car that for example moves in pairs.
The miner is knocked down by the shuttle car in the passage easily, causes danger.Shuttle car can make the ground fragmentation of transport channel very soon, and the ground of damage has increased the maintenance load of shuttle car.
Assembly type conveyer (disclosed in the AU-A-10873/92 patent of private limited partnership of for example Australian plum section (MECO)) can replace shuttle car to carry coal.
Though conveyer is safer to the workman, and less to the destruction on passage ground, when Mars Miner advanced, must suspend to produce increased the conveyer unit.
Summary of the invention
The object of the present invention is to provide a kind ofly under the prerequisite that allows Mars Miner to push ahead, mineral such as coal are transported to the method in remote place from Mars Miner.
The minimum method of transfer rate decline when the preferred purpose of the present invention is a kind of advancing is provided.
Another preferred purpose of the present invention is to provide a kind of plant equipment distance method of advancing greatly.
Also having a preferred purpose to be to provide a kind of can utilize or in conjunction with the method for existing equipment.
Other purpose of the present invention will clearly embody from following explanation.
A first aspect of the present invention provides and a kind of mineral (for example coal) is transported to the method in remote place from face, this method may further comprise the steps into:
A) fragmentation and/or sorting mined material;
B) mineral with fragmentation/sorting mix the formation slurries with water;
C) by one or more flexible slurry pipe slush pump is delivered to remote place; And
D) from slurries, isolate moisture and make mineral reduction.
This method is preferably further comprising the steps of:
E) water is drawn back into going into step (b) and mix with other mineral.
Second aspect present invention is to realize the device of said method.
Mineral (for example coal, rock) are preferably in the breaker and carry out fragmentation and/or sorting, and this breaker has a surge hopper or surge bin, so that receive the mineral from Mars Miner.
The size of this surge hopper or surge bin preferably can be held 30 seconds output to a few minutes (for example 5 minutes) of Mars Miner.
Mineral after the sorting preferably mix and go out by the pumping unit pumping, and this pumping unit has one at least, are preferably two or more pumps, and this pump preferably is connected respectively with slurry pipe and carries out work, slurries are transported to be positioned at dewater unit at a distance.
Breaker and pumping unit can be equipment separately, also can be installed in the lump on (preferably hinged) frame.
Dewater unit preferably has at least one or a plurality of return pipe that is connected with pumping unit.
Each slurry pipe preferably has a flexible portion that is connected with pump and/or dewater unit at least with each return pipe, thereby allows pumping unit (along with the propelling of Mars Miner) to advance with respect to dewater unit.
Flexible portion preferably includes coil pipe and/or the snakelike part that one or more snippets roof by the tunnel, wall and/or ground are supported by for example monorail or slide rail.
Pipeline may further include one or more snippets rigid element, and this rigid portion can be suspended on tunnel roof and/or the wall.
Additional flexible portion can insert in the pipeline, thereby allows pumping unit (and Mars Miner) further along passage and/or enter the turnout around the turning and advance.
Description of drawings
Below in conjunction with accompanying drawing an optimal case is described, thereby make the present invention can access sufficient understanding.
Fig. 1 is the local schematic top plan view in colliery, coal wall of the present invention;
Fig. 2 is the enlarged detail at B place among Fig. 1;
Fig. 3 is the local enlarged side view along Fig. 1 cathetus A;
Fig. 4 is the vertical view corresponding to Fig. 3.
The specific embodiment
Colliery 100 has can be by cut coal 102 path 10 1 of for example longwall working.
Equipment of the present invention must be by the intersection of path 10 1 with fork road 103.
As Fig. 3 of amplifying and shown in Figure 4, coal 102 exploit from face 104 by Mars Miner 10, thereby makes constantly propelling of path 10 1 (or turnout 103).
Coal 102 is transported to Mars Miner 10 rear portions by carrier bar 11 along Mars Miner 10 middle parts.
Coal 102 is discharged in the surge bin 21 of breaker 20 front portions.The Capacity Selection of surge bin 21 becomes can satisfy under the situation of Mars Miner 10 non-stop runs, and the coal in the breaker 20 flows can be interrupted 30 seconds to a few minutes (for example 5 minutes).
Coal 102 is broken and sorting in breaker 20, and is transported to pumping unit 30, mixes with water there then to form coal slurry.(the following describes these water and will return the situation of pumping unit 30 by the Returning pipe that dewater unit is drawn.)
Be connected with the slurries conduit 41-43 of pipe-line system 40 respectively at 30, three slush pump 31-33 of pumping unit, this names a person for a particular job and describes in detail in the back.
The downstream of each slurries conduit 41-43 is connected with dewater unit 50, and coal 102 dewaters (promptly separating from slurries) in dewater unit 50 and is sent to conveyer 60, by conveyer 60 (for example by a series of other conveyers) coal is sent the tunnel.Have at least a return pipe 51 that isolated water in the dewater unit 50 is turned back to pumping unit 30.
Pipe-line system 40 has three slurries conduit 41-43, and intermediate portion 41b-43b comprises a plurality of for example diameter 150mm conduits, and its roof 105 from path 10 1 is suspended.(this conduit for example can by slide rail 206 from wall suspended and/or by ground supports).The downstream of slurries conduit 41-43 has flexible end portion 41c-43c and is connected with dewater unit 50.Each slurries conduit 41-43 has a flexible part 41a-43a and is connected with pump 31-33 respectively, and the flexible 41a-43a that divides is rolled into plate-like, suspended on the monorail 106 from the roof 105 of path 10 1 (or supported by ground slide rail 206).Those skilled in the art are readily appreciated that when Mars Miner 10, breaker 20 and pumping unit 30 advanced, flexible end portion 41a-43a launched, and are supported at interval by monorail 106.
When flexible portion 41a-43a when launching fully, more monorail 106 is fixed on the roof 105 between existing monorail 106 and the equipment/device 10/20/30, new monorail 106 support flexible pipe additional lengths.In other words, the additional length of flexible pipe is supported by more slide rail 206.
One of them pump for example 31 is shut down, and slurries conduit 41 is disconnected, thereby at gap the flexible end portion 41a of new flexible pipe with pump 31 and slurries conduit 41 is communicated with.
Restart pump 31, and pump 32 and 33 is repeated this program successively.This just means with existing carrying method and compares (utilize increase the conveyer unit satisfy Mars Miner 20 advance needs suspend produce), the conveying capacity between Mars Miner 10 and the conveyer 60 at any time only loses 1/3rd.
Even pump 31-33 breaks down,, produce and still can keep though output descends to some extent.
Those skilled in the art are readily appreciated that the quantity/discharge capacity of pump 31-33/ slurries conduit 41-43/ return pipe 51 can require to change according to concrete tunnel.
In some application scenario, the preferred flexible material that all adopts of pipeline 41-43.
Advantage of the present invention comprises:
Aforesaid operations can carry out continuously, and the miner is cut coal on work plane incessantly;
Operation allows as much as possible near work plane---equipment can be worked near a wall in tunnel, so just allow supplies and other equipment to enter road and deliver on the work plane the miner there;
Carry out simultaneously near going into other mining processes of permission as much as possible, and often will wait until under these operation normal conditions that shuttle car just can carry out when stopping;
Owing to do not have shuttle car to transport, safety (for example roof supporting, ventilation, installation/adjustment) improved greatly along road;
Reduced the risk that causes gas explosion because of cable is impaired;
The situation injured because of shuttle car driver when the irregular travels down reduces;
Pavement destruction is quite little, and the road surface is fully maintained, the impaired injured and unexpected minimizing of pedestrian traffic of the vehicles and passenger;
There is not the caused cable of rapid cable movement impaired.
A plurality of pumps guarantee running continuously---these pumps can be in production period maintenance or alternation;
Disposing standby motor and rotor makes breaker more reliable.
Can transport supplies and equipment and spare part, convenient work is carried out;
Because operation and structure are all very simple, maintenance cost is low;
Simple in structure and can utilize to existing device, thus make easy to maintenance;
Flexible configuration makes system can adapt to various requirement, for the mining operator creates multiple choices---help mining design and logistics support;
Production capacity can improve by increasing pumping unit;
The mass transport distance can change to several kms from hundreds of rice as required;
Hinged frame between breaker 20 and the pumping unit 30 provides mobility;
Have from the ability of work plane pumped slurry, this just means that pump can be used for clearing up the rubbish on the work plane in the road, makes that working environment cleans more, safety;
The present invention can unite use with existing winning equipment;
The present invention can be used for trunk roadway exploitation and passage exploitation;
The present invention can adopt support apparatus and excavation equipment and cylinder coal excavation apparatus;
The continuous conveyor plate extends and operates;
First aid and smoking room can be close;
Can increase other auxiliary equipment on the framework, for example the conveying of support apparatus, supplies, ventilation installation, floor-cleaning device, pumping unit etc. and manipulation hand F.O.P.S.
Under the prerequisite that does not depart from the scope of the invention, the embodiment that describes by accompanying drawing can carry out various replacings and improvement above.
Claims (19)
1. one kind is transported to the method in remote place with mineral from face, may further comprise the steps:
A} fragmentation and/or sorting mined material;
B) mineral with fragmentation/sorting mix the formation slurries with water;
C) by one or more soft slurry pipe slush pump is delivered to remote place; And
D) from slurries, separate water outlet and make mineral reduction.
2. the method for claim 1 further comprises step:
E) water is drawn back into going into step (b) and mix with mineral again.
3. the method described in claim 1 or 2, it is characterized in that: mineral carry out fragmentation and/or sorting in a breaker, and this breaker has a surge hopper or surge bin, so that can hold the mineral from Mars Miner.
4. method as claimed in claim 3 is characterized in that: the size of this surge hopper or surge bin can be held 30 seconds to 5 minutes output quantity of Mars Miner.
5. as the described method of arbitrary claim in the claim 1 to 4, it is characterized in that: the material in the step (b) after fragmentation/sorting is after mixing, the pumping unit of being made up of at least one pump carries out pumping, this pump is communicated with operation with separately slurries conduit respectively, slurries is transported to the dewater unit that is positioned at remote place.
6. method as claimed in claim 2, it is characterized in that: execution in step (e), dewater unit has one or more return pipes, and this return pipe is connected with pumping unit, and the material after fragmentation/sorting mixes to form the slurries of step (b) with water at the pumping unit place.
7. as claim 5 or 6 described methods, it is characterized in that: each slurry pipe and/or each return pipe have a flexible portion that is connected with pump and/or dewater unit at least, thereby allow pumping unit (along with the propelling of Mars Miner) to advance with respect to dewater unit.
8. method as claimed in claim 7 is characterized in that: flexible portion comprises one or more snippets coil pipe and/or snake abdomen shape part, and they are supported by monorail and/or slide rail by roof, wall and/or the ground in tunnel.
9. method as claimed in claim 8 is characterized in that: slurries conduit and/or return pipe further comprise one or more snippets suspended rigid element on tunnel roof and/or the wall.
10. method as claimed in claim 9 is characterized in that: the flexible portion of attached increase is inserted slurries conduit and/or return pipe, be advanced further thereby allow pumping unit (and Mars Miner) to advance and/or enter the turnout around the turning along the passage in the tunnel.
11. mineral are transported to the device in remote place from face, comprise:
A breaker, it holds the mineral from the face Mars Miner, thereby can carry out fragmentation and/or sorting to mineral;
One is mixed the material after fragmentation/sorting to form the pumping unit of slurries with water, it has at least one pump;
One is arranged in remote place and is used for separating water outlet from slurries, thereby makes the dewater unit of mineral reduction; And
At least one is communicated with and makes the slurries conduit that slurries are carried therein with each pump on the pumping unit with dewater unit.
12. device as claimed in claim 11 further comprises: at least one is communicated with, makes water to return the return pipe that pumping unit mixes with more mineral dewater unit with pumping unit.
13. as claim 11 or 12 described devices, it is characterized in that: each slurry pipe and/or return pipe have a flexible portion that is connected with pumping unit and/or dewater unit at least, thereby allow breaker and pumping unit to advance with respect to dewater unit along with the propelling of Mars Miner.
14. device as claimed in claim 13 is characterized in that: flexible portion comprises one or more snippets coil pipe and/or snake abdomen shape part, and they are supported by monorail and/or slide rail by roof, wall and/or the ground in tunnel.
15. as the described device of arbitrary claim in the claim 11 to 14, it is characterized in that: each slurries conduit and/or return pipe comprise one or more snippets suspended rigid element on tunnel roof and/or the wall.
16. device as claimed in claim 15, it is characterized in that: the flexible portion of attached increase inserts slurries conduit and/or return pipe, thereby allows breaker and pumping unit to advance and/or enter the crossroad around the turning or advance in the branch fork along the passage in the tunnel with Mars Miner.
17. as the described device of arbitrary claim in the claim 11 to 16, it is characterized in that: breaker has a surge hopper or surge bin, the size of this surge hopper or surge bin can be held the mineral of Mars Miner output in 30 seconds to 5 minutes.
18. device as claimed in claim 17 is characterized in that: Mars Miner, breaker and pumping unit are connected to each other simultaneously and advance.
19. as the described device of arbitrary claim in the claim 11 to 18, it is characterized in that: slurries conduit separately is communicated with each pump with dewater unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPQ9793 | 2000-08-31 | ||
| AUPQ9793A AUPQ979300A0 (en) | 2000-08-31 | 2000-08-31 | Mining system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1455842A true CN1455842A (en) | 2003-11-12 |
Family
ID=3823847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01814520A Pending CN1455842A (en) | 2000-08-31 | 2001-08-31 | Mining system |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20030173818A1 (en) |
| CN (1) | CN1455842A (en) |
| AU (1) | AUPQ979300A0 (en) |
| CA (1) | CA2463048A1 (en) |
| DE (1) | DE10196548T1 (en) |
| GB (1) | GB2383598A (en) |
| NZ (1) | NZ524761A (en) |
| PL (1) | PL359417A1 (en) |
| WO (1) | WO2002018748A1 (en) |
| ZA (1) | ZA200302169B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010233A (en) * | 2011-09-23 | 2013-04-03 | 徐广杰 | Empty rail mine car |
| CN103827660A (en) * | 2011-08-03 | 2014-05-28 | 技术信息有限公司 | Processing mined material |
| CN104847357A (en) * | 2015-04-28 | 2015-08-19 | 中国矿业大学 | Pumper and pipeline transportation type semicontinuous mining transportation technology for open-pit mine |
| CN112469885A (en) * | 2018-07-19 | 2021-03-09 | 地下萃取技术私人有限公司 | Recovery of a conveyor system and a continuous miner from an excavated penetration tunnel of an underground mine |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT501900B1 (en) * | 2005-07-13 | 2006-12-15 | Voest Alpine Materials Handlin | DISCHARGE DEVICE FOR THE CONTINUOUS TRANSPORT OF MATERIALS REMOVED FROM UNDERGROUND |
| DE202009001477U1 (en) | 2009-02-06 | 2009-04-09 | Holcim Technology Ltd. | Device for the continuous mining and removal of minerals |
| CN102671760B (en) * | 2012-04-14 | 2015-04-29 | 江苏林康高新技术有限公司 | Vertical-type dry-concentration placer ore taking and magnetic concentration system and method |
| GB201718881D0 (en) * | 2017-11-15 | 2017-12-27 | Anglo American Services (Uk) Ltd | A method for mining and processing of an ore |
| CN113669061B (en) * | 2021-09-15 | 2024-04-16 | 太原理工大学 | Device capable of lap joint anti-slip static pre-splitting top plate and use method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3260548A (en) * | 1965-03-11 | 1966-07-12 | Consolidation Coal Co | Method and apparatus for continuously mining and transporting coal |
| US3790214A (en) * | 1972-09-29 | 1974-02-05 | O Kilroy | Hydraulic mining system |
| US3845990A (en) * | 1972-10-16 | 1974-11-05 | Continental Oil Co | Slurry hopper system |
| US3941425A (en) * | 1973-08-21 | 1976-03-02 | Consolidation Coal Company | Mobile slurry handling system |
| US3924895A (en) * | 1973-12-07 | 1975-12-09 | William C Leasure | Method and apparatus for hydraulic transportation of mined coal |
| US4286822A (en) * | 1979-12-14 | 1981-09-01 | Conoco, Inc. | Underspoil slurry haulage |
-
2000
- 2000-08-31 AU AUPQ9793A patent/AUPQ979300A0/en not_active Abandoned
-
2001
- 2001-08-31 US US10/362,407 patent/US20030173818A1/en not_active Abandoned
- 2001-08-31 CN CN01814520A patent/CN1455842A/en active Pending
- 2001-08-31 DE DE10196548T patent/DE10196548T1/en not_active Withdrawn
- 2001-08-31 WO PCT/AU2001/001098 patent/WO2002018748A1/en active IP Right Grant
- 2001-08-31 PL PL01359417A patent/PL359417A1/en unknown
- 2001-08-31 GB GB0303031A patent/GB2383598A/en not_active Withdrawn
- 2001-08-31 NZ NZ524761A patent/NZ524761A/en unknown
- 2001-08-31 CA CA002463048A patent/CA2463048A1/en not_active Abandoned
-
2003
- 2003-03-18 ZA ZA200302169A patent/ZA200302169B/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103827660A (en) * | 2011-08-03 | 2014-05-28 | 技术信息有限公司 | Processing mined material |
| CN103010233A (en) * | 2011-09-23 | 2013-04-03 | 徐广杰 | Empty rail mine car |
| CN103010233B (en) * | 2011-09-23 | 2016-08-03 | 徐广杰 | Empty rail mine car |
| CN104847357A (en) * | 2015-04-28 | 2015-08-19 | 中国矿业大学 | Pumper and pipeline transportation type semicontinuous mining transportation technology for open-pit mine |
| CN112469885A (en) * | 2018-07-19 | 2021-03-09 | 地下萃取技术私人有限公司 | Recovery of a conveyor system and a continuous miner from an excavated penetration tunnel of an underground mine |
| US11788412B2 (en) | 2018-07-19 | 2023-10-17 | Underground Extraction Technologies Pty Ltd. | Recovering conveyor systems and continuous miners from mined plunge tunnels in underground mines |
| CN112469885B (en) * | 2018-07-19 | 2024-04-09 | 地下萃取技术私人有限公司 | Recovery conveyor system and continuous miner from excavated, plunged tunnel of underground mine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002018748A1 (en) | 2002-03-07 |
| US20030173818A1 (en) | 2003-09-18 |
| CA2463048A1 (en) | 2002-03-07 |
| NZ524761A (en) | 2004-08-27 |
| GB2383598A (en) | 2003-07-02 |
| GB0303031D0 (en) | 2003-03-12 |
| ZA200302169B (en) | 2004-02-16 |
| DE10196548T1 (en) | 2003-07-31 |
| PL359417A1 (en) | 2004-08-23 |
| AUPQ979300A0 (en) | 2000-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |