EP0587991A3 - Pickholder for shears drum or cutting head - Google Patents

Pickholder for shears drum or cutting head Download PDF

Info

Publication number
EP0587991A3
EP0587991A3 EP19930108254 EP93108254A EP0587991A3 EP 0587991 A3 EP0587991 A3 EP 0587991A3 EP 19930108254 EP19930108254 EP 19930108254 EP 93108254 A EP93108254 A EP 93108254A EP 0587991 A3 EP0587991 A3 EP 0587991A3
Authority
EP
European Patent Office
Prior art keywords
water
water nozzle
air
jet
chisel
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.)
Granted
Application number
EP19930108254
Other languages
German (de)
French (fr)
Other versions
EP0587991B1 (en
EP0587991A2 (en
Inventor
Reinhard Schiel
Walter Hemmer
Hans Dipl.-Ing. Krummenauer
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.)
Krummenauer & Co KG GmbH
Original Assignee
Krummenauer & Co KG GmbH
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 Krummenauer & Co KG GmbH filed Critical Krummenauer & Co KG GmbH
Publication of EP0587991A2 publication Critical patent/EP0587991A2/en
Publication of EP0587991A3 publication Critical patent/EP0587991A3/en
Application granted granted Critical
Publication of EP0587991B1 publication Critical patent/EP0587991B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/187—Mining picks; Holders therefor with arrangement of fluid-spraying nozzles

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)
  • Nozzles (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Ein Meißelhalter (2) für eine Schrämwalze oder einen Schneidkopf weist hinter dem Meißel (3) eine auf die Meißelspitze und/oder nahe der Meißelspitze auf das abzutragende Mineral gerichtete Wasserdüse (16) auf.
Die Wasserdüse (16) ist in einer für den Strahl (25) offenen, zurückliegenden Kammer (22) angeordnet, in die sie von der Rückseite her eingesetzt wird. Mit der so eingesetzten Wasserdüse kann die Kammer verhältnismäßig schmal und tief sein, so daß die Wasserdüse darin absolut geschützt liegt. A chisel holder (2) for a cutting roller or a cutting head has, behind the chisel (3), a water nozzle (16) directed towards the chisel tip and / or near the chisel tip towards the mineral to be removed.
The water nozzle (16) is arranged in a rear chamber (22) which is open to the jet (25) and into which it is inserted from the rear. With the water nozzle used in this way, the chamber can be relatively narrow and deep, so that the water nozzle is absolutely protected therein.

In die Kammer (22) mündet ein Lufteinlaß (23) in Form mindestens einer seitlichen Öffnung (23).
Bei dieser Ausgestaltung saugt der Strahl der Wasserdüse Luft an. Es entsteht ein Wasser-Luft-Sprühstrahl von größerer Gleichmäßigkeit als der reine Wasser-Sprühstrahl. Die größere Gleichmäßigkeit erlaubt es, bei im wesentlichen gleicher Kühlwirkung - der Luftanteil des Wasser-Luft-Sprühstrahles kühlt mit - und bei gleicher oder noch verbesserter Löschfähigkeit für Funken den Wasserverbrauch zu senken. An air inlet (23) in the form of at least one lateral opening (23) opens into the chamber (22).
In this embodiment, the jet of the water nozzle sucks in air. A water-air spray jet is created which is more uniform than the pure water spray jet. The greater uniformity allows the water consumption to be reduced with essentially the same cooling effect - the air portion of the water-air spray also cools - and with the same or even better extinguishing capacity for sparks.

EP93108254A 1992-09-14 1993-05-21 Pickholder for shears drum or cutting head Expired - Lifetime EP0587991B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4230678 1992-09-14
DE4230678A DE4230678A1 (en) 1992-09-14 1992-09-14 Chisel holder for a cutting roller or a cutting head

Publications (3)

Publication Number Publication Date
EP0587991A2 EP0587991A2 (en) 1994-03-23
EP0587991A3 true EP0587991A3 (en) 1994-03-30
EP0587991B1 EP0587991B1 (en) 1997-03-26

Family

ID=6467894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108254A Expired - Lifetime EP0587991B1 (en) 1992-09-14 1993-05-21 Pickholder for shears drum or cutting head

Country Status (4)

Country Link
EP (1) EP0587991B1 (en)
CZ (1) CZ292136B6 (en)
DE (2) DE4230678A1 (en)
PL (1) PL172259B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0990088B1 (en) * 1998-03-17 2004-06-02 VOEST-ALPINE Bergtechnik Gesellschaft m.b.H Nozzling device for chisel bits and a method for nozzling round shank chisel bits of a holing machine
ITMI20080338A1 (en) 2008-02-29 2009-09-01 Ergon Srl DIFFUSER FOR SHOWER AND RELATIVE SUPPLY NOZZLES
DE102010022113A1 (en) * 2010-05-20 2011-11-24 Dh Mining System Gmbh Nozzle for water mist spraying
CN102146793A (en) * 2011-01-14 2011-08-10 三一重型装备有限公司 Tunneller and cutting mechanism thereof
GB201119486D0 (en) 2011-11-11 2011-12-21 Minnovation Ltd Mineral cutter pick etc
CN111706326B (en) * 2015-01-28 2023-03-10 久益环球地下采矿有限责任公司 Drill bit assembly
US10830042B2 (en) 2016-09-19 2020-11-10 Minnovation Limited Cutter pick assembly with water spray assembly
CN106437704B (en) * 2016-12-01 2018-12-07 黑龙江科技大学 A kind of coal petrography cutting process and Novel cutting tooth

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408030A1 (en) * 1977-11-08 1979-06-01 Gewerk Eisenhuette Westfalia KNIFE FOR CARBON AND PLANE FILLED WITH KNIVES OF THIS TYPE
DE3202315A1 (en) * 1982-01-26 1983-07-28 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Loosening tool for a winning machine in underground mining
GB2167789A (en) * 1984-11-28 1986-06-04 Paurat F Reducing ignition of mine gas during operation of a section-cutting gallery driving machine
DE3920205C1 (en) * 1989-05-17 1990-12-06 Fa. Michael Komotzki, 4600 Dortmund, De
GB2239822A (en) * 1990-01-16 1991-07-17 Minnovation Ltd Water spray unit for mining
GB2246588A (en) * 1990-08-03 1992-02-05 Tool & Steel Products Limited Nozzle arrangement for a mineral cutter pick box

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408030A1 (en) * 1977-11-08 1979-06-01 Gewerk Eisenhuette Westfalia KNIFE FOR CARBON AND PLANE FILLED WITH KNIVES OF THIS TYPE
DE3202315A1 (en) * 1982-01-26 1983-07-28 Gebr. Eickhoff, Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum Loosening tool for a winning machine in underground mining
GB2167789A (en) * 1984-11-28 1986-06-04 Paurat F Reducing ignition of mine gas during operation of a section-cutting gallery driving machine
DE3920205C1 (en) * 1989-05-17 1990-12-06 Fa. Michael Komotzki, 4600 Dortmund, De
GB2239822A (en) * 1990-01-16 1991-07-17 Minnovation Ltd Water spray unit for mining
GB2246588A (en) * 1990-08-03 1992-02-05 Tool & Steel Products Limited Nozzle arrangement for a mineral cutter pick box

Also Published As

Publication number Publication date
EP0587991B1 (en) 1997-03-26
DE4230678A1 (en) 1994-03-17
DE59305941D1 (en) 1997-04-30
CZ190293A3 (en) 1994-04-13
CZ292136B6 (en) 2003-08-13
EP0587991A2 (en) 1994-03-23
PL300288A1 (en) 1994-04-05
PL172259B1 (en) 1997-08-29

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