US3603644A - Mining ventilation apparatus and method - Google Patents

Mining ventilation apparatus and method Download PDF

Info

Publication number
US3603644A
US3603644A US816224A US3603644DA US3603644A US 3603644 A US3603644 A US 3603644A US 816224 A US816224 A US 816224A US 3603644D A US3603644D A US 3603644DA US 3603644 A US3603644 A US 3603644A
Authority
US
United States
Prior art keywords
air
flow
passageway
face
specified
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
US816224A
Other languages
English (en)
Inventor
Harold C Mccleery
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.)
Joy Manufacturing Co
Citibank NA
Joy Technologies Inc
Original Assignee
Joy Manufacturing Co
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 Joy Manufacturing Co filed Critical Joy Manufacturing Co
Application granted granted Critical
Publication of US3603644A publication Critical patent/US3603644A/en
Assigned to JOY MANUFACTURING COMPANY, 535 SMITHFIELD STREET, PITTSBURGH, PA. A CORP. OF PA. reassignment JOY MANUFACTURING COMPANY, 535 SMITHFIELD STREET, PITTSBURGH, PA. A CORP. OF PA. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MCCLEERY, HAROLD, C.,
Assigned to JOY TECHNOLOGIES INC., A CORP. OF DE. reassignment JOY TECHNOLOGIES INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JOY MANUFACTURING COMPANY, A CORP. OF PA
Assigned to JOY TECHNOLOGIES INC. reassignment JOY TECHNOLOGIES INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JOY MANUFACTURING COMPANY, A CORP. OF PA
Assigned to CITIBANK, N.A. reassignment CITIBANK, N.A. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURGH, PA 15219, A DE CORP.
Assigned to JOY MANUFACTURING COMPANY reassignment JOY MANUFACTURING COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JOY TECHNOLOGIES INCL., (A DE CORP.)
Assigned to CITIBANK, N.A., 641 LEXINGTON AVENUE, NEW YORK, NEW YORK 10043 reassignment CITIBANK, N.A., 641 LEXINGTON AVENUE, NEW YORK, NEW YORK 10043 SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). (AS SECURITY ONLY) Assignors: JOY TECHNOLOGIES INC.,
Anticipated expiration legal-status Critical
Assigned to JOY TECHNOLOGIES INC., A CORP OF DE reassignment JOY TECHNOLOGIES INC., A CORP OF DE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: ARCHIBALD, JOHN H., MC CARTNEY, DEREK L.
Assigned to JOY TECHNOLOGIES, INC., A CORP OF DE reassignment JOY TECHNOLOGIES, INC., A CORP OF DE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). RECORDED ON 08/01/88 REEL 4936 FRAME 0730 Assignors: CITIBANK N.A.
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • E21C35/22—Equipment for preventing the formation of, or for removal of, dust
    • E21C35/223—Equipment associated with mining machines for sucking dust-laden air from the cutting area, with or without cleaning of the air

Definitions

  • ABSTRACT A method and apparatus for fully ventilating the 98/50, 299/67 face of a mined area by means of an auxiliary flow of air which [51] Int. E2lc 35/22 deflects a normal flow of ventilating air such that a relatively [50] Field of 299/12, 81; greater area of a mine face is contacted by a passing flow of 98/50 ventilating air.
  • the continuous mining machine of this invention is of the type having one or more rotary cutter heads supported by a vertically movable boom mounted ona mobile base for movement along a mine floor into contact with a mining face developed in a mineral vein.
  • Such mining machines are well known in the art and the particular machine to which the structure and method of the instant inventionapply is more fully shown and described in copending application Ser. No. 786,650 filed Dec. 24, 1968 (Teeter) which application is assigned to the same assignee as is this application.
  • the object of the present invention is to provide a current of auxiliary air directed at the point of greatest dust production to augment the normal air flow which by a suitable partitioning of the mined passageway is constrained to travel toward the face along one part of the passageway, across the mine face and outwardly along the mine passage on the side of the machine away from the operator to reduce the dust and gas hazard normally present in the use of continuous miners.
  • the ducts are integral with the boom once the aiming of the outlet mouth has been accomplished adjustment of the boom up and down carries the ducts with it and keeps the outlet adjustment proper for aiming the current of air at the point of greatest gas liberation and dust production;
  • FIG. 1 is a general three-dimensional view of a mining machine constructed according to the principles of this invention
  • FIG. 2 is a top plan view ofthe mining machine of FIG. 1;
  • FIG. 3 is a side elevational view of the mining machine of FIGS. 1 and 2;
  • FIG. 4 is a sectional view taken substantially on line 44 of FIG. 2 looking in the direction indicated by the arrows;
  • FIG. 5 is a sectional view taken substantially on line 5-5 of FIG. 2 and looking in the direction of the arrows.
  • FIG. 1 there is shown a mining machine generally indicated at having a cutter head drum 24 rotatably mounted on a vertically movable boom 18 which is pivotally mounted on a main frame 16 in turn supported and rendered movable over a surface by a pair of crawler assemblies 14 in a manner well known in the art.
  • the main frame 16 also supports an elongated, centrally located flight conveyor 30 and a conventional loader arm-type gathering head 26 all as more fully shown and described in the above cited copending application of Teeter.
  • the cutter support boom 18 is pivotally supported as at 38 and pivotable about a horizontal axis by the action of fluid operated extensible jacks 32 while the gathering head is similarly pivotable in the vertical direction by a pair of suitable jacks 34.
  • a ducted fan and motor assembly 27 Centrally mounted in a rearward portion of the boom 18 is a ducted fan and motor assembly 27 which may be of any type suitable for moving large quantities of air at moderate velocities.
  • the housing of the fan assembly 27 is fitted to and communicates in substantially airtight relationship with a generally Y-shaped rectangular air duct 28 having rightand left-hand branches 36 and 37, respectively, suitably sized having a cross-sectional area approximately twice that of the fan to conduct the air delivered by the fan and motor assembly 27 at a moderate velocity through either of two branches 36 and 37 of the Y-duct 28.
  • branches of 36 and 37 of the Y-duct 28 extend diagonally forwardly and outwardly from the front end of the fan assembly 27 through the interior of the boom 18 with the outermost ends of the branches 36 and 37 protruding outwardly beyond the sides of the boom 18.
  • a substantially full cross section opening 29 to deliver the air from the fan and motor assembly 27.
  • a substantially rectangular valve of damper element 35 is positioned across the base of the left-hand branch 37 to stop the flow of air therethrough and direct all of the airflow into the right branch as hereinafter explained.
  • FIG. 1 a substantially rectangular valve of damper element 35 is positioned across the base of the left-hand branch 37 to stop the flow of air therethrough and direct all of the airflow into the right branch as hereinafter explained.
  • the damper 35 is secured in position by a single retaining element such as a capscrew 39 located somewhat to the right of the longitudinal centerline of the boom with the damper 35 extending diagonally rearwardly across that centerline to mate with the rear side of the left branch.
  • a threaded bore 40 is provided in a position analogous to that of the capscrew 39 but to the left of the boom centerline.
  • the cutter head drum 24 supports helical conveyor members on which are mounted suitable mineral cutting bits (not shown) which when operating travel in paths collectively forming an outline shown as a bit path 25 to cut mineral in a well-known manner.
  • the particular machine 10 hereinabove described is brought to a mineral face by operation of the crawler assemblies 14 in a well'known manner and with the boom raised and the cutter head drum rotating in a clockwise direction as seen in FIG. 3 the miner It) begins to form a new face as at 23 (see FIG. 3).
  • the machine is moved forward approximately half the diameter of the bit path 25 and the boom is then gradually lowered with the formation of a face 23 somewhat as seen in FIG. 3 with a substantially horizontal portion 23' being continuously formed and continuously cut away.
  • This face portion 23 is subject to the highest rate of cutting action of any part of the face area.
  • the air then would generally move toward the face along the mine passageway and then away from the face behind the brattice or as otherwise described; the air could also be taken away from the face by a large duct continuously extended to keep the intake end of it ahead of the operator to prevent dust from falling on the operator; to continue with the method of this invention; with the normal supply flow of air along the passageway toward the face the method of this invention contemplates discharging an auxiliary air stream at an acute angle to and in concurrent flow with the normal supply flow which air stream will be an input flow of sufficient volume and velocity to deflect the supply flow over portions of the face not normally contacted by such supply flow, particularly including the corner of the face which normally would be a dead air space without benefit of the gas dilution and dust removal of the normal flow of air over other portions of the face; further steps of the method could be included in varying the direction of the discharge of the auxiliary air stream from a high angle at the beginning of the cutting cycle (sumping portion) and continuously varying the angles from that high angle
  • a mining machine of the type having a cutter head mounted on the free forward end of an elongated boom and which cutter head extends laterally outwardly from each side of said boom and is movable in conjunction with said boom across a face of a bedded deposit of mineral, the improvement comprising: air conducting passageway means carried by said boom and movable therewith; said passageway means having a discharge opening located to discharge air outwardly of one side of said boom and forwardly towards the end of said cutterhead in closest proximity thereto; and means for causing air flow through said passageway means.
  • passageway means includes a second discharge opening located to discharge air outwardly of the other side of said boom and forwardly towards the other end of said cutterhead.
  • a mining machine as specified in claim 2 additionally comprising flow control means cooperable with said passageway means to control the discharge of air through said discharge openings.
  • passageway means includes a Y-shaped air duct and said discharge openings are at the ends of respective furcations of said duct opposite the juncture ends thereof.
  • the method of ventilating the mine face during the operation of a mining machine within a mine passageway comprising: continuously providing along one side of a mine passageway a first flow of air toward a mine face located at the inner end of said passageway; continuously maintaining flow of at least a portion of said first flow towards the intersection of said one side and said face by directing an auxiliary flow of air at an acute angle to and in concurrent flow with said first flow; and thereafter withdrawing all of said air flows across said face and outwardly of said passageway.
  • a mining machine as specified in claim 1 additionally comprising flow control means cooperable with said passageway means to control the discharge of air through said discharge opening.
  • a method of ventilating as specified in claim 8 including, prior to said withdrawing, the additional steps of: discontinuing said first flow of air; selectively providing a second flow of air toward said face along the other side of said passageway; and selectively directing said auxiliary flow of air at an acute angle to and in concurrent flow with said second flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (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)
  • Excavating Of Shafts Or Tunnels (AREA)
US816224A 1969-04-15 1969-04-15 Mining ventilation apparatus and method Expired - Lifetime US3603644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81622469A 1969-04-15 1969-04-15

Publications (1)

Publication Number Publication Date
US3603644A true US3603644A (en) 1971-09-07

Family

ID=25220005

Family Applications (1)

Application Number Title Priority Date Filing Date
US816224A Expired - Lifetime US3603644A (en) 1969-04-15 1969-04-15 Mining ventilation apparatus and method

Country Status (5)

Country Link
US (1) US3603644A (enrdf_load_stackoverflow)
JP (1) JPS4919481B1 (enrdf_load_stackoverflow)
DE (1) DE2017892A1 (enrdf_load_stackoverflow)
FR (1) FR2043373A5 (enrdf_load_stackoverflow)
GB (1) GB1291734A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712678A (en) * 1971-03-18 1973-01-23 Lee Noise Co Mining machine having dust collecting means
US3904246A (en) * 1973-02-09 1975-09-09 Coal Industry Patents Ltd Rotary cutter heads for mineral mining machines
US4076315A (en) * 1971-08-05 1978-02-28 Rexnord, Inc. Dust abatement device and method of dust abatement
AT377329B (de) * 1982-12-23 1985-03-11 Voest Alpine Ag Antriebsanordnung fuer die ladearme einer laderampe fuer vortriebs- oder gewinnungsmaschinen
US4531784A (en) * 1983-03-17 1985-07-30 National Mine Service Company Mining machine with dust collector apparatus
WO1999046479A1 (en) * 1998-03-10 1999-09-16 Thiess Contractors Pty. Limited Temporary ventilation system for mining or tunnelling
US9587491B2 (en) * 2010-09-22 2017-03-07 Joy Mm Delaware, Inc. Guidance system for a mining machine
CN110145355A (zh) * 2019-06-14 2019-08-20 华北理工大学 一种胶带输送机火灾烟流引流装置及方法
RU2716765C2 (ru) * 2014-12-12 2020-03-16 ДЖОЙ ГЛОБАЛ АНДЕРГРАУНД МАЙНИНГ ЭлЭлСи Система наведения горного комбайна
US10900357B2 (en) 2013-05-01 2021-01-26 University Of Kentucky Research Foundation Blowing curtain face ventilation system for extended cut mining using passive regulator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062595A (en) * 1976-10-15 1977-12-13 The United States Of America As Represented By The Secretary Of The Interior Automatic face transfer linear cutting rotary head continuous mining machine and method
JPH0486617U (enrdf_load_stackoverflow) * 1990-11-16 1992-07-28

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749105A (en) * 1949-07-05 1956-06-05 Joy Mfg Co Dust allaying means for continuous mining apparatus
US3333896A (en) * 1965-04-29 1967-08-01 Carbon Fuel Company Method and apparatus for rock dusting during coal mining operations
US3387889A (en) * 1966-11-03 1968-06-11 Stanley C. Ziemba Coal dust removal and conveyance system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749105A (en) * 1949-07-05 1956-06-05 Joy Mfg Co Dust allaying means for continuous mining apparatus
US3333896A (en) * 1965-04-29 1967-08-01 Carbon Fuel Company Method and apparatus for rock dusting during coal mining operations
US3387889A (en) * 1966-11-03 1968-06-11 Stanley C. Ziemba Coal dust removal and conveyance system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Face Ventilation With Continuous Mining by Paul C. Lingo, Mechanization, Sept. 1961, pages 39 43 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712678A (en) * 1971-03-18 1973-01-23 Lee Noise Co Mining machine having dust collecting means
US4076315A (en) * 1971-08-05 1978-02-28 Rexnord, Inc. Dust abatement device and method of dust abatement
US3904246A (en) * 1973-02-09 1975-09-09 Coal Industry Patents Ltd Rotary cutter heads for mineral mining machines
AT377329B (de) * 1982-12-23 1985-03-11 Voest Alpine Ag Antriebsanordnung fuer die ladearme einer laderampe fuer vortriebs- oder gewinnungsmaschinen
US4531784A (en) * 1983-03-17 1985-07-30 National Mine Service Company Mining machine with dust collector apparatus
WO1999046479A1 (en) * 1998-03-10 1999-09-16 Thiess Contractors Pty. Limited Temporary ventilation system for mining or tunnelling
US9587491B2 (en) * 2010-09-22 2017-03-07 Joy Mm Delaware, Inc. Guidance system for a mining machine
US10900357B2 (en) 2013-05-01 2021-01-26 University Of Kentucky Research Foundation Blowing curtain face ventilation system for extended cut mining using passive regulator
RU2716765C2 (ru) * 2014-12-12 2020-03-16 ДЖОЙ ГЛОБАЛ АНДЕРГРАУНД МАЙНИНГ ЭлЭлСи Система наведения горного комбайна
CN110145355A (zh) * 2019-06-14 2019-08-20 华北理工大学 一种胶带输送机火灾烟流引流装置及方法
CN110145355B (zh) * 2019-06-14 2024-05-17 华北理工大学 一种胶带输送机火灾烟流引流装置及方法

Also Published As

Publication number Publication date
FR2043373A5 (enrdf_load_stackoverflow) 1971-02-12
GB1291734A (en) 1972-10-04
DE2017892A1 (de) 1970-11-12
JPS4919481B1 (enrdf_load_stackoverflow) 1974-05-17

Similar Documents

Publication Publication Date Title
US3603644A (en) Mining ventilation apparatus and method
CN102966367B (zh) 巷道掘进设备及其除尘装置
US3726562A (en) Mining machine including means for utilizing vacuum at working face and methods of operation thereof
US20140008469A1 (en) Water sprays for dust control on mining machines
US3333896A (en) Method and apparatus for rock dusting during coal mining operations
CN113250729B (zh) 一种综掘面涡控-旋阻式分域通风控尘方法及系统
CN112879068B (zh) 综掘面大涡集尘-旋流布风分域系统及分域通风控尘方法
US3556599A (en) Method of tunneling and tunneling shield with a drag loader
US3362752A (en) Mining apparatus and method
US4632462A (en) Continuous miner-mounted mine ventilation system
CN112832760A (zh) 一种采煤机定轨式隔尘降尘装置
US3640580A (en) Dust-eliminating coal-mining apparatus
CN209430197U (zh) 一种掘进巷道粉尘灭除设备
US3743356A (en) Coal dust removal and coal transportation system
US3887235A (en) Assembly for hydraulic extraction of sheet-like mineral deposits sectioned into panels by a system of passageways
US4483238A (en) Dust control in longwall mining
US20120104831A1 (en) Heading Machine
JPH06323089A (ja) トンネル掘進方法およびこの方法を実施するためのトンネル掘進装置
US3225678A (en) Mine ventilation scheme
CN117307230A (zh) 一种井下掘进施工用控尘分风调节系统及方法
EA023214B1 (ru) Устройство орошения водяным туманом
CN110925007B (zh) 一种用于煤矿井下掘进的工作面调风装置
RU2005884C1 (ru) Способ проветривания выемочного участка
US2194474A (en) Mining apparatus
JPH0249890A (ja) トンネル掘削工法における粉塵防止方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: JOY TECHNOLOGIES INC., A CORP. OF DE.,PENNSYLVANIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004880/0430

Effective date: 19870529

Owner name: JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURG

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004880/0430

Effective date: 19870529

Owner name: JOY MANUFACTURING COMPANY, 535 SMITHFIELD STREET,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MCCLEERY, HAROLD, C.,;REEL/FRAME:004718/0987

Effective date: 19690402

AS Assignment

Owner name: JOY TECHNOLOGIES INC., PENNSYLVANIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004747/0261

Effective date: 19870626

Owner name: CITIBANK, N.A.,NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURGH, PA 15219, A DE CORP.;REEL/FRAME:004846/0025

Effective date: 19870626

Owner name: CITIBANK, N.A., 641 LEXINGTON AVENUE, NEW YORK, NE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURGH, PA 15219, A DE CORP.;REEL/FRAME:004846/0025

Effective date: 19870626

Owner name: JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURG

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004747/0261

Effective date: 19870626

AS Assignment

Owner name: JOY MANUFACTURING COMPANY,STATELESS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY TECHNOLOGIES INCL., (A DE CORP.);REEL/FRAME:004827/0367

Effective date: 19870626

Owner name: JOY MANUFACTURING COMPANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE DATE;ASSIGNOR:JOY TECHNOLOGIES INCL., (A DE CORP.);REEL/FRAME:004827/0367

Effective date: 19870626

AS Assignment

Owner name: CITIBANK, N.A., 641 LEXINGTON AVENUE, NEW YORK, NE

Free format text: SECURITY INTEREST;ASSIGNOR:JOY TECHNOLOGIES INC.,;REEL/FRAME:004936/0730

Effective date: 19870626

AS Assignment

Owner name: JOY TECHNOLOGIES INC., A CORP OF DE, PENNSYLVANIA

Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:MC CARTNEY, DEREK L.;ARCHIBALD, JOHN H.;REEL/FRAME:005237/0152

Effective date: 19870626

AS Assignment

Owner name: JOY TECHNOLOGIES, INC., A CORP OF DE

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITIBANK N.A.;REEL/FRAME:005237/0187

Effective date: 19891011