US3620573A - Mining method and apparatus therefor - Google Patents

Mining method and apparatus therefor Download PDF

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Publication number
US3620573A
US3620573A US815098A US3620573DA US3620573A US 3620573 A US3620573 A US 3620573A US 815098 A US815098 A US 815098A US 3620573D A US3620573D A US 3620573DA US 3620573 A US3620573 A US 3620573A
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ore
tunnels
chain
stratum
strata
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US815098A
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Desmond De Villiers Oxford
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
    • B28D1/088—Sawing in situ, e.g. stones from rocks, grooves in walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone
    • B28D1/124—Saw chains; rod-like saw blades; saw cables

Definitions

  • the apparatus comprising 1 Int Cl 47/08 means for sawing away of the narrow strata by a flat elongated Fieid 299718 '9 endless chain saw mechanism mounted on a pair of carriages 35 4 riding on rails in parallel tunnels the mechanism having a thickness of a roximatel the thickness of the ore-hearin PP y g 5 References Cited strata and the chain saw extending transversely hetvieen the tunnels wherein the ground material is sluiced into the tunnels UNITED STATES PATENTS and a pumping station provided to transport the material to 733,073 7/1903 N6Ukll'CiL: i. 299/19 the f PATENTED NUV 16 IHTI 3,6 20, 573
  • the stope i.e. the worked-out part of the mine behind the working face, is again filled up with rubble and nonpaying earth, or simply allowed to collapse as the working face be necessary to leave unthereby decreasing the liability ofaccidents to the miners.
  • Yet another object of the present invention is to provide a new method for the mining relatively narrow strata of ore Yet a further object is to ing of narrow-strata of ore provide a new method for the minwhich in view of the above feature and thus permit the profitable mining oflower concentrates ofore which heretofore could not be profitably mined.
  • FIG. 2 is an elevational longitudinal section view of a mine incorporating the present invention in its operation.
  • FIG. 3 is a cross-sectional view in elevation of a section of earth including an ore-bearing strata.
  • FIG. 4 is a view similar to FIG. 3showing the present invention applied thereto for mining out the ore-bearing strata.
  • FIG. 5 is a section along a strike taken on line 55 of FIG. 3 and showing initially bored openings for receiving a toothed chain of the present invention.
  • FIG. 6 is a fragmentary detail of the toothed chain.
  • FIG. 7 is a longitudinal section view taken on line 77 of FIG. 4.
  • FIG. 8 is a fragmentary detail of a cutting cylinder.
  • the reference numeral 10 represents a mining apparatus according to the present invention wherein there is a chain cutter II that is supported at its opposite ends on mine cars 12 and 13 located in different tunnels or passageways 14 and 15 of a mine 16.
  • the chain cutter 11 includes a pair of chain-driving gears 17 and 18 between which an endless heavy duty chain 19 is carried.
  • the chain is provided with a plurality of diamond-encrusted links 20 which additionally may incorporate tungsten carbide slugs.
  • the links 20 may be flat cylindrical or of other shape.
  • a drive mechanism 21 is mounted on each of the cars for selective use, the drive mechanisms including appropriate structure for supporting the gears, and the drive mechanisms being powered by conventional electrical motors with associate controls.
  • the ore-bearing strata may be found to be located in any of various planes due to the geological upheavals and other natural forces that over the ages twist the earth's crust. Accordingly the strata in the mine. may be on a plurality of openings 22 23 between the tunnels or are initially passageways are enjoined enjoined, the
  • the mine 16 is shown to incorporate a pump column 28 between a pump chamber 29 and a metallurgical plant 30. Pulp stream or slurry 31 flows to the pump chamber 29.
  • FIG. 8 a cutting cylinder 32 is shown as a means for grin appropriate driving mechanisms at its opposite ends carried upon the mine carts.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

An apparatus for mining ore of a type which is located in relatively narrow strata within the earth whereby it is profitably disadvantageous to move large quantities of earth so to gain physical access thereto, the apparatus comprising means for sawing away of the narrow strata by a flat elongated endless chain saw mechanism mounted on a pair of carriages riding on rails in parallel tunnels, the mechanism having a thickness of approximately the thickness of the ore-bearing strata and the chain saw extending transversely between the tunnels wherein the ground material is sluiced into the tunnels and a pumping station provided to transport the material to the surface.

Description

D United States Patent 3,620,573
[72] Inventor DesmondDe Villiers Oxford 753,092 2/l904 Neukirch 299/35 33 New Forest Road, Forest Town. 3.459. I 69 8/196) McNulty 299/?0 X Johannesburg, Republic of South Africa FOREIGN PATENTS 21 l. 7 Qfg No 23 6 1969 599.284 3/1948 Great Britain 299 I8 [45] Patented Nov. 16, 1971 Primary Examiner-Ernest R Purser [54] MINING METHOD AND APPARATUS THEREFOR ABSTRACT: An apparatus for mining ore of a type which is 3 Claims. 8 Drawing Figs. located in relatively narrow strata within the earth whereby it [52] U S Cl 299/35 is profitably disadvantageous to move large quantities of earth Bi 299/19 so to gain physical access thereto, the apparatus comprising 1 Int Cl 47/08 means for sawing away of the narrow strata by a flat elongated Fieid 299718 '9 endless chain saw mechanism mounted on a pair of carriages 35 4 riding on rails in parallel tunnels the mechanism having a thickness of a roximatel the thickness of the ore-hearin PP y g 5 References Cited strata and the chain saw extending transversely hetvieen the tunnels wherein the ground material is sluiced into the tunnels UNITED STATES PATENTS and a pumping station provided to transport the material to 733,073 7/1903 N6Ukll'CiL: i. 299/19 the f PATENTED NUV 16 IHTI 3,6 20, 573
sum u [1F 4 //Vl/E/V roz DE /Volvo l/ML/EPS OXFORD a relatively thin strata of the earth and which may extend rectilinearly over a long plane of distance.
Priority is claimed under Pat. application No. 65/3788 in the Republic of South Africa and accepted for examination by the Registrar of Patents on Oct. 15, I967.
Heretofore the conventional mining of such mineral deposits required the construction of tunnels, and galleries with branching passageways and drifts at different levels, and thereafter drilling, blasting, digging to remove the mineral-bearing ore out of the mine. It
mineral bearing ore, and that in order to gain physical access thereto the excavations must be sufficiently high so to permit entrance of men and machinery, which thereby requires the rubble and nonore-bearing passages. The stope, i.e. the worked-out part of the mine behind the working face, is again filled up with rubble and nonpaying earth, or simply allowed to collapse as the working face be necessary to leave unthereby decreasing the liability ofaccidents to the miners.
Yet another object of the present invention is to provide a new method for the mining relatively narrow strata of ore Yet a further object is to ing of narrow-strata of ore provide a new method for the minwhich in view of the above feature and thus permit the profitable mining oflower concentrates ofore which heretofore could not be profitably mined.
FIG. 2 is an elevational longitudinal section view of a mine incorporating the present invention in its operation.
FIG. 3 is a cross-sectional view in elevation of a section of earth including an ore-bearing strata.
FIG. 4 is a view similar to FIG. 3showing the present invention applied thereto for mining out the ore-bearing strata.
FIG. 5 is a section along a strike taken on line 55 of FIG. 3 and showing initially bored openings for receiving a toothed chain of the present invention.
FIG. 6 is a fragmentary detail of the toothed chain.
FIG. 7 is a longitudinal section view taken on line 77 of FIG. 4.
FIG. 8 is a fragmentary detail of a cutting cylinder.
Referring now to the drawing in detail, the reference numeral 10 represents a mining apparatus according to the present invention wherein there is a chain cutter II that is supported at its opposite ends on mine cars 12 and 13 located in different tunnels or passageways 14 and 15 of a mine 16.
According to the invention, the chain cutter 11 includes a pair of chain-driving gears 17 and 18 between which an endless heavy duty chain 19 is carried. The chain is provided with a plurality of diamond-encrusted links 20 which additionally may incorporate tungsten carbide slugs. The links 20 may be flat cylindrical or of other shape.
A drive mechanism 21 is mounted on each of the cars for selective use, the drive mechanisms including appropriate structure for supporting the gears, and the drive mechanisms being powered by conventional electrical motors with associate controls.
In the ground, the ore-bearing strata may be found to be located in any of various planes due to the geological upheavals and other natural forces that over the ages twist the earth's crust. Accordingly the strata in the mine. may be on a plurality of openings 22 23 between the tunnels or are initially passageways are enjoined enjoined, the
row ram pumps 27.
These ores may then be pulverized and subjected to specific treatments for separation of the valuable minerals from the residue rock.
In FIG. 2, the mine 16 is shown to incorporate a pump column 28 between a pump chamber 29 and a metallurgical plant 30. Pulp stream or slurry 31 flows to the pump chamber 29.
in FIG. 8 a cutting cylinder 32 is shown as a means for grin appropriate driving mechanisms at its opposite ends carried upon the mine carts.
As the mining operation progresses, the space 33 behind the no problems for overhead together.
Thus there has been provided a new method and apparatus for mining of relatively narrow strata of valuable minerals which promotes safety, increases mining profit and permits operation of lower grade ore.
While various changes may be made in the detail construction, it is understood that such changes will be within the spirit and scope of the present invention as is defined by the appended claims.
I claim as follows:
1. Apparatus for mining a relatively narrow ore stratum,
comprising parallel tunnels with carnage rails. a pair of similar

Claims (3)

1. Apparatus for mining a relatively narrow ore stratum, comprising parallel tunnels with carriage rails, a pair of similar carriages with wheels mounted on said rails, chaindriving gears mounted on said carriages in combination with an endless chain mounted on said gears extending generally in straight lines parallel to the stratum and transversely to the axis of the tunnels, each gear being operated by a drive mechanism on said carriages, continuously in the same linear direction, ore-cutting means mounted on the chain, wherein said ore-cutting means being substantially the same thickness as said ore stratum.
2. An apparatus as in claim 1 wherein the cutting means comprise diamond-encrusted links encompassing the chain, and wherein the angle between the chain and vertical direction varies of 0* to 90*.
3. An apparatus as in claim 1 further including means for pumping the ground material from the stratum to the tunnels and a surface metallurgical plant.
US815098A 1969-04-10 1969-04-10 Mining method and apparatus therefor Expired - Lifetime US3620573A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033795A (en) * 1989-11-09 1991-07-23 The United States Of America As Represented By The Secretary Of The Interior Method of mining a mineral deposit seam
US20030173819A1 (en) * 2001-12-10 2003-09-18 Hames Marilyn Patricia Ann Mining method for steeply dipping ore bodies
US7192093B2 (en) 2004-04-23 2007-03-20 Placer Dome Technical Services Limited Excavation apparatus and method
US7695071B2 (en) 2002-10-15 2010-04-13 Minister Of Natural Resources Automated excavation machine
US8646846B2 (en) 2010-08-23 2014-02-11 Steven W. Wentworth Method and apparatus for creating a planar cavern
US8789891B2 (en) 2010-08-23 2014-07-29 Steven W. Wentworth Method and apparatus for creating a planar cavern
US20150178410A1 (en) * 2013-12-19 2015-06-25 Dassault Systemes Geovia Inc. Underground Tactical Optimization
US20160097279A1 (en) * 2013-05-14 2016-04-07 Minrail Inc. Mining site having a shallow angle extraction shaft, shallow angle mining method and method for constructing a penstock
WO2021209980A1 (en) * 2020-04-17 2021-10-21 Reyes, Juan Method of shoreline wave energy capture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US733073A (en) * 1901-01-08 1903-07-07 Hubert Valentin Neukirch Means for cutting coal, &c.
US753092A (en) * 1904-02-23 neukirch
GB599284A (en) * 1945-09-14 1948-03-09 Robert Henry Craven Improvements in or relating to an apparatus for the transport of coal or other minerals from mines
US3459169A (en) * 1966-08-12 1969-08-05 Northern Lumber Co Inc Chain saw for cutting very hard materials and having plunge cutting means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US753092A (en) * 1904-02-23 neukirch
US733073A (en) * 1901-01-08 1903-07-07 Hubert Valentin Neukirch Means for cutting coal, &c.
GB599284A (en) * 1945-09-14 1948-03-09 Robert Henry Craven Improvements in or relating to an apparatus for the transport of coal or other minerals from mines
US3459169A (en) * 1966-08-12 1969-08-05 Northern Lumber Co Inc Chain saw for cutting very hard materials and having plunge cutting means

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033795A (en) * 1989-11-09 1991-07-23 The United States Of America As Represented By The Secretary Of The Interior Method of mining a mineral deposit seam
US20030173819A1 (en) * 2001-12-10 2003-09-18 Hames Marilyn Patricia Ann Mining method for steeply dipping ore bodies
WO2003050391A3 (en) * 2001-12-10 2004-11-11 Placer Dome Technical Services Mining method for steeply dipping ore bodies
US6857706B2 (en) * 2001-12-10 2005-02-22 Placer Dome Technical Services Limited Mining method for steeply dipping ore bodies
US8016363B2 (en) 2002-10-15 2011-09-13 Eric Jackson Automated excavation machine
US7695071B2 (en) 2002-10-15 2010-04-13 Minister Of Natural Resources Automated excavation machine
US7192093B2 (en) 2004-04-23 2007-03-20 Placer Dome Technical Services Limited Excavation apparatus and method
US8646846B2 (en) 2010-08-23 2014-02-11 Steven W. Wentworth Method and apparatus for creating a planar cavern
US8789891B2 (en) 2010-08-23 2014-07-29 Steven W. Wentworth Method and apparatus for creating a planar cavern
US20160097279A1 (en) * 2013-05-14 2016-04-07 Minrail Inc. Mining site having a shallow angle extraction shaft, shallow angle mining method and method for constructing a penstock
US10196072B2 (en) * 2013-05-14 2019-02-05 Minrail Inc. Mining site having a shallow angle extraction shaft, shallow angle mining method and method for constructing a penstock
US20150178410A1 (en) * 2013-12-19 2015-06-25 Dassault Systemes Geovia Inc. Underground Tactical Optimization
US9773075B2 (en) * 2013-12-19 2017-09-26 Dassault Systemes Canada Inc. Underground tactical optimization
WO2021209980A1 (en) * 2020-04-17 2021-10-21 Reyes, Juan Method of shoreline wave energy capture

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