US3790214A - Hydraulic mining system - Google Patents

Hydraulic mining system Download PDF

Info

Publication number
US3790214A
US3790214A US00293401A US3790214DA US3790214A US 3790214 A US3790214 A US 3790214A US 00293401 A US00293401 A US 00293401A US 3790214D A US3790214D A US 3790214DA US 3790214 A US3790214 A US 3790214A
Authority
US
United States
Prior art keywords
water
reservoir
mining
tube
ore
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.)
Expired - Lifetime
Application number
US00293401A
Other languages
English (en)
Inventor
O Kilroy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3790214A publication Critical patent/US3790214A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/60—Slitting by jets of water or other liquid
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/04—Transport of mined material in gravity inclines; in staple or inclined shafts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/04—Transport of mined material in gravity inclines; in staple or inclined shafts
    • E21F13/042—Vertical hydraulic conveying of coal

Definitions

  • E21c 41/00, E21c 45/00 tern including a method and apparatus whereby en- [58] Field of Search... 299/8, l7, 18, 56, 57, 64-68, ergy derived from a downflowing column of water uti- 299/19; 60/398; 61/19; 302/14, 15, 16 lized to conduct underground mining operations is mechanically transferred to a pump which drives a [56] References Cited column of slurry containing mined ore upwardly to a UNITED STATES PATENTS separator on the ground surface.
  • the present invention is founded on the basic concept of mechanically transferring energy derived from a downflowing column of water to a'pump for driving ,an upflowing column' of ore-containing slurry. It is based on the theoretical calculations that a given volume of water flowing downwards into a mine area, then being enslurried with ore, and then returning to the surface, will require a net power input, supplementing the mechanically transferred energy, at a cost which represents substantial operating savings over conventional haulage equipment used in underground mines.
  • a water reservoir in the form of a lake or pond which is located at or immediately beneath the ground surface.
  • a downflow tube Extending downwardly from this reservoir and preferably in a direction which is substantially vertical is a downflow tube, the lower end of which empties into an underground reservoir located at the lower level of the mining operation.
  • a turbine Included in this tube at a location fairly close to the underground reservoir, speaking with reference to the overall length of the tube, is a turbine which is driven by the downflowing column of water in the tube. This turbine is mechanically connected to a pump which drives a column of slurry in an upfiow tube.
  • auxillary to the mechanically driven pump is a system for boosting the power requirements to drive the slurry upwards. This is necessary where underground reservoir capacity is not largeenough to hold the additional volume of water necessary to provide the net input power requirement by mechanical transfer.
  • This auxillary system may be driven by electricity, gas, fuel oil, or other forms of energy.
  • the lower end of this tube communicates with a slurry mix tank and the upper end with an ore separating system that includes a pressure autoclave. Water from the latter is conveyed to the reservoir at the ground surface, preferably under gravity action.
  • Rock breaking jets are provided on a mobile carrier and are operated by the pressure of water in a flexible tube that is connected to the downflow tube immediately beneath the turbine therein.
  • Mined ore and water are conveyed by another flexible tube to the slurry mix tank under the influence of a pump which is driven by a motor operating on one of the above auxillary energy forms.
  • Excess water from the mining operation is conveyed by gravity action through a tube to the underground reservoir.
  • a settling tank is included in this tube for the purpose of separating fine particles from the water and these fine particles are delivered to the slurry mix tank.
  • Water for the slurry mix tank is drawn from the underground reservoir by a pump which is driven by a motor operating on one of the above auxillary energy forms.
  • Excess water from the underground reservoir is returned to the surface reservoir by an upflow tube under the influence of a pump that is driven by a motor operating on one of the above energy forms, but electricity is preferred.
  • the ore is mined by conventional mining apparatus, crushed and conveyed to the slurry mix tank.
  • the mining apparatus, rock crusher and conveyor are driven by motors operating on one or more of the above auxillary energy forms.
  • all of the underground operations including the breaking of rocks by water jets, conveyance thereof to the slurry mix tank and the operation of the slurry mix tanks are driven from an hydraulic motor which is in turn actuated by the head of water in the downflow tube.
  • both of the reservoirs should be extensive to allow for the return of water from the underground reservoir to the surface reservoir at night when electric power is less expensive, if available.
  • the volume of water needed to provide the net power input, provided by other energy forms in the preferred embodiment will be substantially greater than that used in said preferred embodiment.
  • FIG. 1 is a vertical section through a ground formation with parts broken away and largely diagrammatic of mining apparatus used to carry out the method of this invention
  • FIG. 2 is a view similar to FIG. 1 of a modified embodiment
  • FIG. 3 is another view similar to FIGS. 1 and 2 of still another modified embodiment.
  • each of the three embodiments illustrated disclose a downflow tube and an upflow slurry tube. These elements are illustrated as having a wide angle of divergence. However, it is to be clearly understood that this angle will vary with different terrain and in some instances it may be found to be practical to include them in a single conduit, bore or passage extending from the ground surface to the underground reservoir.
  • a mine site is indicated generally at 10 and includes a ground formation 11 having a top surface 12 and formed with a slightly inclined stope 13 at the lower portion thereof in which the actual mining operation takes place. The mine entrance for personnel is not shown.
  • a lake or pond Formed at ground surface 12 or immediately therebeneath is a lake or pond forming a surface reservoir 14.
  • This reservoir should be extensive and much larger in relative size than indicated by the diagrammatic representation thereof. It should have a capacity sufficient to provide water for the operations now to be described, with said volume of water being limited to that amount necessary to enslurry a given volume of ore, to fill the operating system, and to provide a minimum surplus as a safety factor.
  • Extending downwardly from surface reservoir 14 is a downflow tube 15 which as illustrated is substantially vertical, although it well could be inclined from the vertical. The lower end of tube 15 opens onto an underground reservoir 16 which also would have a large capacity comparable to that of surface reservoir 14.
  • An upflow slurry tube is designated 18.
  • the lower end of tube 18 communicates with a slurry mix tank 19 and its upper end with an ore separator 20 which includes a pressure autoclave.
  • a pump 23 is mechanically driven from turbine 17 by driving connections represented at 24. It is believed unnecessary to herein illustrate or describe details of the mechanical connections 24, because such are generally well known.
  • the auxillary net power input system will be integrated with the mechanical pump 23, with said details also being omitted since such systems are well known.
  • Such auxillary power input may take the form of electric motor 6 which is mechanically connected to pump 23.
  • Water is delivered to slurry mix tank 19 by a pipe 25 which includes a pump 26 that is driven by an electric motor 27 and the lower end of which communicates with underground reservoir 16.
  • Jet nozzles 29 are mounted on a mobile carrier 30 and water under pressure is supplied by flexible and segmented tube 31 which is connected to downflow tube 15 as indicated at 32. This connection 32 is located between turbine 17 and underground reservoir 16.
  • Another flexible and segmented tube 33 has one end mounted on the carrier 30 immediately adjacent to jet nozzles 29 and its other end to slurry mix tank 19 as indicated at 34.
  • a pump 35 is included in tube 33 and is driven by an electric motor 36. It will be understood that while pump 35 and motor 36 are illustrated diagrammatically, they would be mounted on carrier 30.
  • an alternative set of machinery would replace scoop at front of carrier 30 if it were necessary to reduce particle size of fragments even further.
  • This machinery would include a rotating set of scoops to drop material onto two counter-moving conveyors that would move material to center of carrier 30. The material would then be moved onto a third conveyor which is 90 to the other two. The material would be moved to the rear of the carrier to be crushed in a wet ball mill 9, mobile like the carrier, or to be moved to a stationary wet ball mill and thence moved to mixing tank 19.
  • the alternative equipment would be driven by electric motors.
  • a drain tube 37 has an upper end at 38 which opens onto the floor of stope 13 where it receives water re sulting from the jets provided by nozzles 29. Drain tube 37 has a slight downward angle of inclination whereby water may flow therethrough to underground reservoir 16. Included in drain tube 37 is a settling tank 39 in which fine particles which may be suspended in water flowing through drain tube 37 are collected.
  • a transfer tube 40 has one end connected to settling tank 39 as indicated at 41, and its other end to slurry mix tank 19 as indicated at 42. Included in transfer tube 40 is a pump 43 which is driven by an electric motor 44.
  • a return tube 45 has a lower end communicating with underground reservoir 16 as indicated at 46 and an upper end which communicates with surface reservoir as indicated at 47. Included in return tube l5 is a pump 48 which is driven by an electric motor 49.
  • Surface reservoir 14 contains an adequate amount of water to provide the head and flow for the operations now to be described.
  • water flows downwardly through downflow tube and drives turbine 17. It also supplies water under pressure to tube 31 which in turn supplies the water to jet nozzles 29.
  • Tube 31 pressure is developed by free flow passage of water, downflowing from turbine 17, into connection 32 in a manner that allows water to enter tube 31 without developing enough back pressure to reduce to any significant degree the energy transfer at turbine 17, but whatever energy loss results is made up in the net power input requirements.
  • An alternative for operating purposes and for emergencies is the provision for a second pump at 7, with a bypass line 8 from reservoir 16 to tube 31, said pump preferably being driven by an electric motor which may be the motor 6 as illustrated.
  • the high pressure water jets break up the formation 28, whereupon the broken pieces of ore and some water are sucked into the open end of tube 33 at mobile unit 30 by pump 35, or said material and water are removed and transported as described above, and this mixture of broken ore and Water is conveyed to slurry mix tank 19 by tube 33.
  • mix tank 19 the ore is further comminuted and additional water supplied through pipe 25 from underground reservoir 16.
  • ore-containing slurry is drawn into the lower end of slurry tube 18 by pump 23 which is mechanically driven from turbine 17 by connections 2d, and by the auxillary net power input system.
  • the slurry under pressure is delivered to separator 20 in which waste material and metal values are separated from the water.
  • the tailings pass out of the separator as indicated at 211 and the stripped water is returned through tube 22 to surface reservoir 14.
  • Excess water from the mining operation is collected in a sump, covered by grillwork similar to a cattleguard, provided by end 38 of drain tube 37 and flows through the latter to underground reservoir 16. Fine particles are collected in the settling tank 39 and transferred by tube dll to slurry mix tank 19 by pump 43.
  • Water from underground reservoir 16 is returned to surface reservoir 17 through tube 45 under the influence of pump 48.
  • FIG. 2 The operation of the embodiment of FIG. 2 is sub stantially the same as that described above in connection with FIG. 1 with the notable exception that mining apparatus 51 mines the ore from formation 30, it is crushed in crusher 52 and transferred by conveyor 53 to slurry mix tank 19. Slurry is mixed in the latter and conveyed upwardly in slurry tube 18 by pump 23 in the manner above described in connection with FIG. 1.
  • FIG. 3 discloses a modification which combines some of the features of FIGS. 1 and 2, but which embraces the notable difference that the slurry mix tank is hydraulically actuated.
  • the ore formation 2% is broken into pieces by water emanating from jets 29 which is supplied under pressure by flexible tube 31 which has an alternative bypass line 31 with pump at reservoir 16. Jets 29 are mounted on a mobile unit 54 which includes transfer mechanism 55 which delivers the mined ore to a conveyor 56. The latter delivers the ore to slurry mix tank 19'.
  • Pump 26 is driven by an hydraulic motor 57 which is connected by a nipple 58 with downflow tube I5 immediately below turbine 17.
  • the operation of the apparatus of FIG. 3 comes quite close to being completely hydraulically operated.
  • the ore is mined hydraulically, the slurry mix tank is operated hydraulically and the slurry is raised by pump 23 which is driven by hydraulically energized turbine 17.
  • the only preferably electrically operated devices are the transfer mechanism 55, conveyor 56 and pump 43 for settling tank 39.
  • reservoirs l4 and 16 are of sufficient capacities to allow net power input to be developed hydraulically, it will be entirely practical and extremely desirable to conduct the mining operations during the daytime when electric power is costly, but return the water from underground reservoir 16 to surface reservoir 14 at night, when electric power is much less expensive. Thus, great savings in the mining operation may be achieved.
  • an upflow slurry tube having a lower end communicating with said slurry mix tank and an upper end at said ground surface;
  • net power input apparatus including a motor connected to said pump;
  • the mining apparatus of claim 11 together with a settling tank included in said drain pipe, together with a transfer tube communicating between said settling tank and said slurry mix tank and including a pump.
  • the mining apparatus of claim 8 in which the means for conveying spent water to said surface reservoir includes a return tube extending from said underground reservoir to said surface reservoir and including an electrically driven pump.
  • the mining apparatus of claim 8 in which the mining devices are jet nozzles connected to said downflow tube by a flexible tube, the mined ore is conveyed to the slurry mix tank by a mechanical conveyor and water is delivered from said underground reservoir to said slurry mix tank by a pump that is actuated by an hydraulic motor connected to said downflow tube between said turbine and underground reservoir.
  • step of returning spent water to the surface reservoir includes the pumping of water from said underground reservoir to said surface reservoir.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Remote Sensing (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
US00293401A 1972-09-29 1972-09-29 Hydraulic mining system Expired - Lifetime US3790214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29340172A 1972-09-29 1972-09-29

Publications (1)

Publication Number Publication Date
US3790214A true US3790214A (en) 1974-02-05

Family

ID=23128935

Family Applications (2)

Application Number Title Priority Date Filing Date
US00293401A Expired - Lifetime US3790214A (en) 1972-09-29 1972-09-29 Hydraulic mining system
US00398951A Expired - Lifetime US3838886A (en) 1972-09-29 1973-09-20 Hydraulically powered ore raising mechanism for mining system

Family Applications After (1)

Application Number Title Priority Date Filing Date
US00398951A Expired - Lifetime US3838886A (en) 1972-09-29 1973-09-20 Hydraulically powered ore raising mechanism for mining system

Country Status (4)

Country Link
US (2) US3790214A (OSRAM)
CA (1) CA997380A (OSRAM)
FR (1) FR2201397B1 (OSRAM)
GB (1) GB1436250A (OSRAM)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870373A (en) * 1974-04-15 1975-03-11 Continental Oil Co Underground coal slurry concentrating sump
US3910050A (en) * 1974-07-10 1975-10-07 Sperry Rand Corp Geothermal energy system and control apparatus
US3924895A (en) * 1973-12-07 1975-12-09 William C Leasure Method and apparatus for hydraulic transportation of mined coal
US3942841A (en) * 1974-04-23 1976-03-09 Continental Oil Company Slurry handling system
US3966261A (en) * 1975-06-30 1976-06-29 Continental Oil Company Coal slurry recovery systems
US3975053A (en) * 1973-12-03 1976-08-17 Kochanowsky Boris J Mining methods as such and combined with equipment
US3993354A (en) * 1975-05-16 1976-11-23 Kilroy Oliver B Multi-level hydraulic mining system
US4023862A (en) * 1975-12-24 1977-05-17 Louis Gold Hydraulic mining and transportation of coal using hot oil under pressure
US4032195A (en) * 1975-05-16 1977-06-28 Kilroy Oliver B Push-pull mining system
US4045086A (en) * 1976-04-06 1977-08-30 Kaiser Resources Ltd. Pumpable product hydraulic mining apparatus and method
US4061398A (en) * 1976-03-02 1977-12-06 Kaiser Resources Ltd. Hydraulic mining apparatus and method
US4079999A (en) * 1974-10-25 1978-03-21 Kaiser Resources Ltd. Method and apparatus for mining
US4094549A (en) * 1972-04-13 1978-06-13 Kaiser Resources Ltd. Process for hydraulically mining coal employing a cutting monitor and a breaking monitor
FR2425537A1 (fr) * 1978-05-10 1979-12-07 Inst Dobychi Uglya Gidravlic Procede d'exploitation hydraulique de couches de mineraux utiles
US4265737A (en) * 1974-01-14 1981-05-05 Otisca Industries, Ltd. Methods and apparatus for transporting and processing solids
US4637656A (en) * 1984-07-03 1987-01-20 Fip Industriale S.P.A. Water jet scarifying apparatus
US5435628A (en) * 1994-04-12 1995-07-25 Hydro Extraction Inc. Underground hydraulic mining method and apparatus
WO1998050682A1 (en) * 1997-05-06 1998-11-12 Imc-Agrico Company Softwall mining method and device
US5879057A (en) * 1996-11-12 1999-03-09 Amvest Corporation Horizontal remote mining system, and method
US6445078B1 (en) 2001-07-30 2002-09-03 Stanley Cieslak, Jr. Gravity electrical generating system
US20030173818A1 (en) * 2000-08-31 2003-09-18 Trevis Aaron James Mining system
US20050206943A1 (en) * 2004-03-22 2005-09-22 Fuji Photo Film Co., Ltd. Print order receiving method and apparatus and printing system
US20100183380A1 (en) * 2009-01-21 2010-07-22 Jeffrey Dietterich Pneumatic Conveyance System including Waste Airflow Electrical Power Generation
RU2459075C1 (ru) * 2010-11-30 2012-08-20 Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" Гидромониторная установка с трубопроводом переменной длины
US10532897B2 (en) * 2014-07-10 2020-01-14 Cementation Canada Inc. Hydraulic hoisting system and method
US10760419B2 (en) 2018-05-07 2020-09-01 Stantec Consulting Ltd. Hydraulic hoisting of potash and other evaporite ores
US11280193B2 (en) 2018-05-07 2022-03-22 Stantec Consulting Ltd. Hydraulic hoisting of potash and other evaporite ores

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103603665B (zh) * 2013-10-25 2015-08-12 河北省矾山磷矿有限公司 矿山采动范围内上盘侧矿体回采方法
US11274648B2 (en) * 2020-01-14 2022-03-15 Ric Enterprises Pumped storage system with waterfall control subsystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481797A (en) * 1921-05-06 1924-01-29 Sherman Woodward Method and apparatus for utilizing potential hydraulic energy
US1810571A (en) * 1924-09-15 1931-06-16 American Cyanamid Co System and method of hydraulic mining
US3260548A (en) * 1965-03-11 1966-07-12 Consolidation Coal Co Method and apparatus for continuously mining and transporting coal
US3617094A (en) * 1970-03-11 1971-11-02 Eagle Construction Corp The Method and apparatus for handling material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1999419A (en) * 1932-01-22 1935-04-30 Silas Mason Company Inc Conveyer apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481797A (en) * 1921-05-06 1924-01-29 Sherman Woodward Method and apparatus for utilizing potential hydraulic energy
US1810571A (en) * 1924-09-15 1931-06-16 American Cyanamid Co System and method of hydraulic mining
US3260548A (en) * 1965-03-11 1966-07-12 Consolidation Coal Co Method and apparatus for continuously mining and transporting coal
US3617094A (en) * 1970-03-11 1971-11-02 Eagle Construction Corp The Method and apparatus for handling material

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094549A (en) * 1972-04-13 1978-06-13 Kaiser Resources Ltd. Process for hydraulically mining coal employing a cutting monitor and a breaking monitor
US3975053A (en) * 1973-12-03 1976-08-17 Kochanowsky Boris J Mining methods as such and combined with equipment
US3924895A (en) * 1973-12-07 1975-12-09 William C Leasure Method and apparatus for hydraulic transportation of mined coal
US4265737A (en) * 1974-01-14 1981-05-05 Otisca Industries, Ltd. Methods and apparatus for transporting and processing solids
US3870373A (en) * 1974-04-15 1975-03-11 Continental Oil Co Underground coal slurry concentrating sump
US3942841A (en) * 1974-04-23 1976-03-09 Continental Oil Company Slurry handling system
US3910050A (en) * 1974-07-10 1975-10-07 Sperry Rand Corp Geothermal energy system and control apparatus
US4079999A (en) * 1974-10-25 1978-03-21 Kaiser Resources Ltd. Method and apparatus for mining
US3993354A (en) * 1975-05-16 1976-11-23 Kilroy Oliver B Multi-level hydraulic mining system
US4032195A (en) * 1975-05-16 1977-06-28 Kilroy Oliver B Push-pull mining system
US3966261A (en) * 1975-06-30 1976-06-29 Continental Oil Company Coal slurry recovery systems
US4023862A (en) * 1975-12-24 1977-05-17 Louis Gold Hydraulic mining and transportation of coal using hot oil under pressure
US4061398A (en) * 1976-03-02 1977-12-06 Kaiser Resources Ltd. Hydraulic mining apparatus and method
US4045086A (en) * 1976-04-06 1977-08-30 Kaiser Resources Ltd. Pumpable product hydraulic mining apparatus and method
FR2425537A1 (fr) * 1978-05-10 1979-12-07 Inst Dobychi Uglya Gidravlic Procede d'exploitation hydraulique de couches de mineraux utiles
US4637656A (en) * 1984-07-03 1987-01-20 Fip Industriale S.P.A. Water jet scarifying apparatus
US4761037A (en) * 1984-07-03 1988-08-02 Renzo Medeot Water jet demolition apparatus and method
US5435628A (en) * 1994-04-12 1995-07-25 Hydro Extraction Inc. Underground hydraulic mining method and apparatus
US5879057A (en) * 1996-11-12 1999-03-09 Amvest Corporation Horizontal remote mining system, and method
US6086159A (en) * 1997-05-06 2000-07-11 Imc-Agrico Mp, Inc. Softwall mining method and device
WO1998050682A1 (en) * 1997-05-06 1998-11-12 Imc-Agrico Company Softwall mining method and device
US20030173818A1 (en) * 2000-08-31 2003-09-18 Trevis Aaron James Mining system
US6445078B1 (en) 2001-07-30 2002-09-03 Stanley Cieslak, Jr. Gravity electrical generating system
US20050206943A1 (en) * 2004-03-22 2005-09-22 Fuji Photo Film Co., Ltd. Print order receiving method and apparatus and printing system
US20100183380A1 (en) * 2009-01-21 2010-07-22 Jeffrey Dietterich Pneumatic Conveyance System including Waste Airflow Electrical Power Generation
US8430605B2 (en) * 2009-01-21 2013-04-30 Jeffrey Dietterich Pneumatic conveyance system including waste airflow electrical power generation
RU2459075C1 (ru) * 2010-11-30 2012-08-20 Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" Гидромониторная установка с трубопроводом переменной длины
US10532897B2 (en) * 2014-07-10 2020-01-14 Cementation Canada Inc. Hydraulic hoisting system and method
US10760419B2 (en) 2018-05-07 2020-09-01 Stantec Consulting Ltd. Hydraulic hoisting of potash and other evaporite ores
US11280193B2 (en) 2018-05-07 2022-03-22 Stantec Consulting Ltd. Hydraulic hoisting of potash and other evaporite ores

Also Published As

Publication number Publication date
FR2201397A1 (OSRAM) 1974-04-26
DE2345863B2 (de) 1977-06-02
US3838886A (en) 1974-10-01
CA997380A (en) 1976-09-21
GB1436250A (en) 1976-05-19
FR2201397B1 (OSRAM) 1982-07-30
DE2345863A1 (de) 1974-04-11

Similar Documents

Publication Publication Date Title
US3790214A (en) Hydraulic mining system
CN110656937B (zh) 一种流态化煤气同采系统及其同采方法
US3260548A (en) Method and apparatus for continuously mining and transporting coal
CN109882239B (zh) 一种露天端帮压煤放射式充填开采方法
RU2338879C1 (ru) Способ разработки рудных месторождений
CN102704935A (zh) 一种超长距工作面综采采煤工艺
CN110284883A (zh) 一种露天煤矿端帮采排充开采方法
Brannon et al. Development of and production update for the Grasberg Block Cave mine–PT Freeport Indonesia
Marovelli et al. The mechanization of mining
US4286822A (en) Underspoil slurry haulage
US3993354A (en) Multi-level hydraulic mining system
WO1996030629A1 (en) The continuous mining, transport amd treatment system
US3837707A (en) Hydraulic mining system
CN212272289U (zh) “三下”压煤区域充填置换开采设备
RU2116447C1 (ru) Способ и механизированный комплекс для отработки кимберлитовых трубок
CN103334756B (zh) 一种尾矿回采装置及方法
CN108716403B (zh) 一种露天矿网格式采矿方法
Van den Berg, G.* & Cooke Hydraulic hoisting technology for platinum mines
SU1399463A1 (ru) Подземный расходный склад взрывчатых материалов дл подземной добычи полезных ископаемых
CN119933691B (zh) 一种适用于松软煤层的煤与煤层气原位共采系统及方法
CN112593934A (zh) 一种砂金矿地下采选矿专用设备
Carter Fort Knox banks on a golden future
Hrabik et al. Economic evaluation of borehole and conventional mining systems in phosphate deposits
US4415207A (en) Underspoil slurry haulage
Boyd Mining and transporting coal underground by hydraulic methods: A literature survey