EP0518705A1 - Zerkleinerungsmaschine - Google Patents

Zerkleinerungsmaschine Download PDF

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Publication number
EP0518705A1
EP0518705A1 EP92305456A EP92305456A EP0518705A1 EP 0518705 A1 EP0518705 A1 EP 0518705A1 EP 92305456 A EP92305456 A EP 92305456A EP 92305456 A EP92305456 A EP 92305456A EP 0518705 A1 EP0518705 A1 EP 0518705A1
Authority
EP
European Patent Office
Prior art keywords
peripheral wall
faces
outlet
crushing chamber
crushing
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
EP92305456A
Other languages
English (en)
French (fr)
Other versions
EP0518705B1 (de
Inventor
Jim Washbourne
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.)
Oxford Brookes Enterprises Ltd
Original Assignee
OXFORD POLYTECHNIC
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 OXFORD POLYTECHNIC filed Critical OXFORD POLYTECHNIC
Publication of EP0518705A1 publication Critical patent/EP0518705A1/de
Application granted granted Critical
Publication of EP0518705B1 publication Critical patent/EP0518705B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/10—Crushing or disintegrating by gyratory or cone crushers concentrically moved; Bell crushers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
    • E21D9/0657—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end structurally associated with rock crushers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
    • E21D9/0875—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket
    • E21D9/0879—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket the shield being provided with devices for lining the tunnel, e.g. shuttering

Definitions

  • This invention relates to a crushing apparatus for crushing and thereby breaking down rock and other material into pieces of smaller size than that originally fed into the apparatus.
  • a crushing apparatus in accordance with the present invention is suitable for use in conjunction with boring and tunnelling equipment as well as crushing quarried material.
  • the crushing apparatus in accordance with the invention can be used in conjunction with both large and small scale boring/tunnelling equipment such as macro-tunnelling equipment for producing tunnels suitable for vehicular transportation and micro-tunnelling equipment for producing tunnels suitable for man-entry.
  • a crushing apparatus comprises a crushing chamber, an inlet for receiving material to be crushed, an outlet through which crushed material is discharged, the crushing chamber comprising an outer peripheral wall which converges towards the outlet and an inner peripheral wall which converges towards the outlet, each peripheral wall having a different number of faces, and means for creating relative movement between the peripheral walls whereby material introduced into the crushing chamber is crushed between the peripheral walls during passage from the inlet to the outlet.
  • the present invention also includes a crushing apparatus comprising a generally annular crushing chamber having an inlet for receiving material to be crushed and an outlet through which crushed material is discharged, the annular crushing chamber comprising coaxially mounted inner and outer members, each member having a multi-faced peripheral wall which converges towards the outlet with each peripheral wall having a different number of faces, and means for creating relative annular movement between the inner and outer members whereby material introduced into the crushing chamber through the inlet is crushed between the peripheral walls during passage from the inlet to the outlet.
  • Each multi-faced peripheral wall may be of frusto-conical form.
  • the outlet may be of annular shape having its axis of symmetry coaxial with the annular crushing chamber and each multi-faced peripheral wall.
  • the peripheral wall of the frusto-conical inner member diverges outwardly towards the outlet and the peripheral wall of the frusto-conical outer member converges inwardly towards the outlet whereby the annular extent of the crushing chamber is progressively reduced from the inlet to the outlet.
  • one end of the inner member is located in the region of the inlet and includes at least two equi-angularly disposed arms extending radially outwardly from the inner member.
  • the inner member is conveniently supported on a shaft which is mounted coaxially within a bore formed in the outer member and rotatable therein.
  • the crushing apparatus according to the invention may be used in conjunction with tunnelling equipment and positioned abaft the tunnelling equipment so that material removed during tunnelling is immediately crushed into a required size thereby easing removal and transportation of the material from the tunnel.
  • the crushing apparatus according to the invention is also eminently suitable for crushing quarried material.
  • two or more crushing apparatus may be mounted in series in order to reduce the size of crushed material in a series of stages with the crushed material discharged from one stage fed as in-feed material to a subsequent stage.
  • a discharge chute may be mounted between each successive apparatus.
  • each discharge chute may include means for opening and closing the same so that when open, material crushed by an immediately preceding apparatus is discharged for removal whereas, when closed, material is fed to the next successive stage for further crushing.
  • inner member 10 and outer member 20 are mounted coaxially for relative rotation about axis X-X.
  • the inner member 10 or the outer member 20 may be driven but, preferably, the inner member is driven by driving means not shown.
  • a crushing chamber 21 is. of general annular shape and converges from an inlet 22 to a discharge outlet 23.
  • Inner and outer peripheral walls of the crushing chamber 21 are constituted by faces 24 and 25 respectively of the inner 10 and outer 20 members which are of right-conical shape.
  • the inner member 10 has nine faces and the outer member 20 has eight faces.
  • Attached to the inner member 10 are three radial arms 26 bearing teeth 27 which together serve, during rotation, to assist introduction and crushing of material fed into the crushing chamber 21 via the inlet 22. It will be appreciated that during rotation of the inner member 10, crushing is effected by inter-action of the material and the faces 24, 25 of the multi-faced inner 10 and outer 20 members since, during rotation, the radial distance between the confronting faces 24,25 on the inner 10 and outer 20 members changes continuously. Crushed material exits through the discharge outlet 23 and passes for subsequent or secondary crushing into a secondary crushing chamber 28. Prongs 29, 30 carried by the inner 10 and outer 20 members respectively serve not only to create secondary crushing but are shaped to assist discharge via a discharge channel D. Lubricant/coolant is fed into the crushing chamber 21 and secondary crushing chamber 28 via conducts 31 and 32.
  • the number of faces of the inner 10 and outer 20 frust-conical members differ in number as previously mentioned by at least one, but each face may also differ in shape and geometric configuration.
  • Figures 3 to 12 show a number of different multi-faced configurations.
  • a multi-faced inner member 10 having nine faces and a multi-faced outer member 20 having eight faces is one very effective combination of faces. Other combinations of faces are also effective.
  • the inner 10 and outer member 20 may each have an even number of faces with the number of faces on each member differing by two. In such a combination of faces, a progressive crushing action is produced between two or more confronting pairs of faces at any particular angular position during relative rotation of the members.
  • the inner member 10 has nine faces (a....i) and the outer member 20 has twelve faces a' ....1'.
  • a difference in the number of faces of three exists between the inner and outer members.
  • three confronting pairs of faces are substantially parallel.
  • progressive crushing therefore, takes place between three pairs of confronting faces and, as with the arrangements of Figures 9, 10 and 11, a crushing apparatus according to Figure 12 is, in use, substantially in rotational balance.
  • a suitable combination falling under category (i) above is a six/eight facial arrangement. As indicated previously the faces may be flat, convexly curved or concavely curved.
  • a crusher in accordance with the present invention possesses the advantage of reduced wear between the members since there is less shearing action of the input material with the lower angle of face motion of the respective members relative to the normal to the relevant face.
  • angles ⁇ and ⁇ between the faces of the main member 10 and outer member 20 and the bases of their respective may fall within a range of 50° to 80° and, preferably, with a range of 55° to 70°.
  • angles X and B may be different within the above ranges, an angle of 60° for both X and B is a practical and optinum relationship.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
  • Shovels (AREA)
EP92305456A 1991-06-13 1992-06-15 Zerkleinerungsmaschine Expired - Lifetime EP0518705B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9112690 1991-06-13
GB919112690A GB9112690D0 (en) 1991-06-13 1991-06-13 Improvements in and relating to crushing apparatus

Publications (2)

Publication Number Publication Date
EP0518705A1 true EP0518705A1 (de) 1992-12-16
EP0518705B1 EP0518705B1 (de) 1997-01-08

Family

ID=10696566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92305456A Expired - Lifetime EP0518705B1 (de) 1991-06-13 1992-06-15 Zerkleinerungsmaschine

Country Status (4)

Country Link
EP (1) EP0518705B1 (de)
AT (1) ATE147284T1 (de)
DE (1) DE69216480T2 (de)
GB (1) GB9112690D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006033835A1 (de) * 2006-07-21 2008-01-24 Backers Maschinenbau Gmbh Vorrichtung zum Sieben oder Brechen von grobem Material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9743C (de) * E. ELSNER in Stargard i.* Pommern Läuferstein aus hartem Gufseisen mit eingesetzter weicher Nabe für Schrotmühlen
CH344286A (de) * 1958-04-11 1960-01-31 Schlumpf Johann Brecher zum Zerkleinern von Steinen und andern brechbaren Stoffen
EP0352349A1 (de) * 1988-07-26 1990-01-31 Kabushiki Kaisha Iseki Kaihatsu Koki Schildvortriebsmaschine
DE3911378A1 (de) * 1989-04-07 1990-10-11 Gewerk Eisenhuette Westfalia Vortriebsschild, insbesondere zur verwendung als schneidschuh im rohrvorpressbetrieb

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9743C (de) * E. ELSNER in Stargard i.* Pommern Läuferstein aus hartem Gufseisen mit eingesetzter weicher Nabe für Schrotmühlen
CH344286A (de) * 1958-04-11 1960-01-31 Schlumpf Johann Brecher zum Zerkleinern von Steinen und andern brechbaren Stoffen
EP0352349A1 (de) * 1988-07-26 1990-01-31 Kabushiki Kaisha Iseki Kaihatsu Koki Schildvortriebsmaschine
DE3911378A1 (de) * 1989-04-07 1990-10-11 Gewerk Eisenhuette Westfalia Vortriebsschild, insbesondere zur verwendung als schneidschuh im rohrvorpressbetrieb

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006033835A1 (de) * 2006-07-21 2008-01-24 Backers Maschinenbau Gmbh Vorrichtung zum Sieben oder Brechen von grobem Material

Also Published As

Publication number Publication date
GB9112690D0 (en) 1991-07-31
DE69216480T2 (de) 1997-04-24
DE69216480D1 (de) 1997-02-20
EP0518705B1 (de) 1997-01-08
ATE147284T1 (de) 1997-01-15

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