GB1473267A - Mining machines - Google Patents

Mining machines

Info

Publication number
GB1473267A
GB1473267A GB5015475A GB5015475A GB1473267A GB 1473267 A GB1473267 A GB 1473267A GB 5015475 A GB5015475 A GB 5015475A GB 5015475 A GB5015475 A GB 5015475A GB 1473267 A GB1473267 A GB 1473267A
Authority
GB
United Kingdom
Prior art keywords
water
valve
piston
haulage
machine
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
Application number
GB5015475A
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.)
Hayden Nilos Conflow Ltd
Original Assignee
Hayden Nilos Conflow Ltd
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 Hayden Nilos Conflow Ltd filed Critical Hayden Nilos Conflow Ltd
Priority to GB5015475A priority Critical patent/GB1473267A/en
Publication of GB1473267A publication Critical patent/GB1473267A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21C35/226—Control valves for the spraying liquid used in dust suppression systems

Abstract

1473267 Mining machines; dust suppression means HAYDEN NILOS-CONFLOW Ltd 6 Dec 1975 50154/75 Heading E1F A mining machine 3 has a control valve 5 which opens at a predetermined pressure in a hydraulically powered haulage 7 to supply dust suppression water to spray heads 2A, 2B. When the machine is idling with no load on its cutting heads 3A, 3B, the valve member 16 of the control valve is held against its seat 14 by water pressure from inlet 9 through the bleed 18 and a spring 15, and a pilot valve 21 having a piston 22 is held in a closed position by an adjustable coil spring 24 since the hydraulic pressure in the haulage 7, which is transmitted by a pipe 13 and passages 32, 33 to a cylinder 23, is insufficient to move the piston 22 against the loading of the spring 24. When the machine is cutting coal, the hydraulic pressure in the haulage 7 is great enough to cause the piston 22 to move, so removing the pilot valve 21 from passage 19. Water in cylinder 17 is thus able to flow away through passages 19, 20 to outlet 10 and causes the valve member to be moved off its seat 14 by the water pressure in the inlet 9. Water flows to spray heads 2A or 2B as determined by a changeover valve 6 in accordance with the direction of traverse.
GB5015475A 1975-12-06 1975-12-06 Mining machines Expired GB1473267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5015475A GB1473267A (en) 1975-12-06 1975-12-06 Mining machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5015475A GB1473267A (en) 1975-12-06 1975-12-06 Mining machines

Publications (1)

Publication Number Publication Date
GB1473267A true GB1473267A (en) 1977-05-11

Family

ID=10454867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5015475A Expired GB1473267A (en) 1975-12-06 1975-12-06 Mining machines

Country Status (1)

Country Link
GB (1) GB1473267A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040334A2 (en) * 1980-05-20 1981-11-25 Bergwerksverband GmbH Water nozzle with self-cleaning means
FR2514404A1 (en) * 1981-10-13 1983-04-15 Coal Industry Patents Ltd SPRAY FLUID SUPPLY CIRCUIT, HAVING HEAD, AND MINE MACHINE PROVIDED WITH SUCH A HAVING HEAD
EP0188188A1 (en) * 1984-12-19 1986-07-23 VOEST-ALPINE Aktiengesellschaft Device for spraying a cooling liquid out of nozzles of a coal cutter drum
GB2183696A (en) * 1985-11-27 1987-06-10 Paurat F Reducing ignition risk when driving galleries in mine workings
EP0253802A1 (en) * 1986-07-17 1988-01-20 VOEST-ALPINE Aktiengesellschaft Device for spraying cooling fluid from nozzles on a cutter head
AT385320B (en) * 1986-07-17 1988-03-25 Voest Alpine Ag SPRAYING DEVICE FOR COOLANT FROM A NOZZLE OF A SCREW HEAD
GB2205338A (en) * 1987-05-22 1988-12-07 Paurat F Reducing ignition risk with a gallery driving machine
EP0523328A2 (en) * 1991-07-17 1993-01-20 Richard Voss Grubenausbau Gmbh Adjustable spraying valve
US5611646A (en) * 1993-07-14 1997-03-18 Richard Voss Grubenausbau Gmbh Support prop with integrated pressure limiting valve and nailed pipes
US6450869B1 (en) 1998-07-23 2002-09-17 Naki Technologies Ltd. Hand held cutting tool and attachment therefor
CN102200089A (en) * 2011-04-21 2011-09-28 三一重型装备有限公司 Shearer and water treatment system thereof
US10125606B2 (en) 2016-05-09 2018-11-13 Joy Global Underground Mining Llc Systems and methods for fluid delivery in a longwall mining system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040334A2 (en) * 1980-05-20 1981-11-25 Bergwerksverband GmbH Water nozzle with self-cleaning means
EP0040334A3 (en) * 1980-05-20 1982-02-03 Bergwerksverband Gmbh Water nozzle with self-cleaning means
FR2514404A1 (en) * 1981-10-13 1983-04-15 Coal Industry Patents Ltd SPRAY FLUID SUPPLY CIRCUIT, HAVING HEAD, AND MINE MACHINE PROVIDED WITH SUCH A HAVING HEAD
EP0188188A1 (en) * 1984-12-19 1986-07-23 VOEST-ALPINE Aktiengesellschaft Device for spraying a cooling liquid out of nozzles of a coal cutter drum
GB2183696A (en) * 1985-11-27 1987-06-10 Paurat F Reducing ignition risk when driving galleries in mine workings
EP0253802A1 (en) * 1986-07-17 1988-01-20 VOEST-ALPINE Aktiengesellschaft Device for spraying cooling fluid from nozzles on a cutter head
AT385320B (en) * 1986-07-17 1988-03-25 Voest Alpine Ag SPRAYING DEVICE FOR COOLANT FROM A NOZZLE OF A SCREW HEAD
AT385815B (en) * 1986-07-17 1988-05-25 Voest Alpine Ag SPRAYING DEVICE FOR COOLANT FROM A NOZZLE OF A SCREW HEAD
GB2205338A (en) * 1987-05-22 1988-12-07 Paurat F Reducing ignition risk with a gallery driving machine
GB2205338B (en) * 1987-05-22 1991-03-06 Paurat F Reducing ignition risk with a gallery driving machine
EP0523328A2 (en) * 1991-07-17 1993-01-20 Richard Voss Grubenausbau Gmbh Adjustable spraying valve
EP0523328A3 (en) * 1991-07-17 1993-04-21 Richard Voss Grubenausbau Gmbh Adjustable spraying valve
US5611646A (en) * 1993-07-14 1997-03-18 Richard Voss Grubenausbau Gmbh Support prop with integrated pressure limiting valve and nailed pipes
US6450869B1 (en) 1998-07-23 2002-09-17 Naki Technologies Ltd. Hand held cutting tool and attachment therefor
CN102200089A (en) * 2011-04-21 2011-09-28 三一重型装备有限公司 Shearer and water treatment system thereof
CN102200089B (en) * 2011-04-21 2012-10-10 三一重型装备有限公司 Shearer and water treatment system thereof
US10125606B2 (en) 2016-05-09 2018-11-13 Joy Global Underground Mining Llc Systems and methods for fluid delivery in a longwall mining system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee