EP0506126B1 - Crushing member of gyratory crusher - Google Patents

Crushing member of gyratory crusher Download PDF

Info

Publication number
EP0506126B1
EP0506126B1 EP92105382A EP92105382A EP0506126B1 EP 0506126 B1 EP0506126 B1 EP 0506126B1 EP 92105382 A EP92105382 A EP 92105382A EP 92105382 A EP92105382 A EP 92105382A EP 0506126 B1 EP0506126 B1 EP 0506126B1
Authority
EP
European Patent Office
Prior art keywords
grooves
plate member
peripheral surface
teeth plate
upstream side
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
EP92105382A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0506126A1 (en
Inventor
Mitsuo Ijuin
Tsukasa Katayama
Shigeto Fukumura
Yorizo Kudo
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.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Publication of EP0506126A1 publication Critical patent/EP0506126A1/en
Application granted granted Critical
Publication of EP0506126B1 publication Critical patent/EP0506126B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B02C2/005—Lining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/10—Mills in which a friction block is towed along the surface of a cylindrical or annular member

Definitions

  • the present invention relates to a crushing member according to the pre-characterizing part of claims 1, 3, 6, 8, 11 and 13.
  • a crushing member of a gyratory crusher is composed of a grooved crushing plate member provided with, such as shown in Fig. 12 showing a mantle (movable member) 13 of a cone crusher, for example, a plurality of grooves 14 formed on an outer peripheral surface of the mantle 13 of frustoconical structure and extending in the same directions as that of a generating line g of the mantle 13.
  • a crushing chamber 12 having a wedge-shaped section c is formed between the outer peripheral surface of the mantle 13 and a concave (fixed member of inverted frustoconical structure) 11 arranged around it.
  • a gyratory crusher of the structure described above as shown in Fig. 12, materials S to be treated and having sizes of D 1 , D 2 , D 3 , D 4 ... corresponding to crushing gaps W 1 , W 2 , W 3 , W 4 , ... which are formed between the outer peripheral surface of the mantle 13 and the concave 11 and which are gradually made narrow from the upper portion towards the lower portion of the crushing chamber 12 as viewed in Fig. 12 along the material flow direction f , are sheared and crushed under compression caused by a gyration of the mantle 13.
  • the crushing member, particularly the mantle, of the conventional gyratory crusher of the structure described above has a frustoconical structure. Accordingly, it is impossible in its principle or basic shape in relation to a casting mold (such as relating a draft angle, strength of molding sand, baking and the like) to form the mantle so as to have an upper portion thereof with wide teeth having rough pitches and a lower portion thereof with fine teeth having fine pitches in accordance with the basic condition or requirement described hereinabove. Such formation of the mantle has a tendency that opposes this requirement. That is, the upper portion of the mantle has a fine pitch and the lower portion has a rough pitch, thus achieving no good crushing effect.
  • the grooved teeth plate provides the following problems for the reason that it is considerably difficult to cast fine and deep grooves to the intermediate and lower surface portions of the outer peripheral surface of the crushing member.
  • a crushing member in which two kinds of members having different anti-wear properties are provided on the surface of the teeth plate member alternately so as to extend in the same direction of the generating line and in which grooves are formed by the wearing of one of these members having relatively low anti-wear property when the material to be treated is crushed.
  • Such prior art is disclosed in, for example, the Japanese Patent Publication No. 2-39939 (39939/1990) which corresponds to U.S. Patent No. 4,848,683.
  • the pitch of the teeth at the upper portion thereof has to have an extremely small pitch with respect to the material to be treated.
  • EP-A1-0 306 023 discloses a gyratory crusher having a mantle and a concave each including grooves defined by curved lines forming an acute angle with respect to a rotational axis of the mantle, wherein the width of the grooves widens in the direction of flow of the material to be crushed. This specific feature of grooves widening in the direction of the material flow is also known from AU-B-578 777 and SU-8-791 421.
  • the object of the present invention is to provide a crushing member of a gyratory crusher capable of satisfying the basic conditions required for a grooved teeth plate of the crushing member in correspondence with the feed size of the material to be treated at the downstream flow direction of the material.
  • the grooves or groove forming members which are formed as grooves by the wearing thereof at a time of the material crushing operation, are formed or disposed in a plurality of circumferential stages to the outer peripheral surface of the teeth plate member of the frustoconical mantle.
  • the pitches and the widths of these grooves and groove forming members are designed so as to have narrow pitches and widths at the downstream side stage of the material flow direction with respect to the upstream side portion, and they are also increased in their number . Accordingly, the crushing member can crush the materials in accordance with the sizes of the materials along the flow direction thereof, thus improving the crushing ability of the gyratory crusher.
  • a first embodiment of a mantle as a crushing member of a gyratory crusher according to the present invention will be first described hereunder with reference to Fig. 1.
  • a mantle 1 is composed of a teeth plate member 2 of frustoconical structure made of a high manganese cast steel including manganese of 13 wt% or more.
  • the outer peripheral surface of the frustoconical mantle 1 is divided into three circumferential stage portions, i.e. upper, intermediate and lower staged surface portions, of the teeth plate member 2 along the material flow direction f .
  • a plurality of grooves 3 and teeth 5 are formed to the upper surface portion of the teeth plate member 2 so as to extend parallel in the same direction of a generating line g of the mantle 1 and disposed with spaces with each other along the peripheral surface of the mantle 1 with relatively large pitches P 1 (See Fig. 5).
  • Each of the grooves 3 has a relatively wide width and deep depth corresponding to the wearing limit of the teeth plate member 2.
  • the pitch P 1 is determined so as to satisfy the basic condition for the ideal crushing function in relation to a size D 1 of a material S to be treated corresponding to a gap W 1 (See Fig. 1) between the upper surface portion of the teeth plate member 2 and a concave 4 arranged around it as shown in Fig. 5.
  • Each tooth 5 formed between the adjacent grooves 3, 3 has a thickness t 1 , as shown in Fig. 5, capable of withstanding the strength of the material S .
  • a plurality of grooves 6 are formed to the intermediate surface portion of the teeth plate member 2 so as to extend parallel in the same direction of the generating line g of the mantle and disposed with spaces with each other along the peripheral surface of the mantle 1 with pitches P 2 each narrower than that of P 1 .
  • Each of the grooves 6 has a width smaller than that of the groove 3 and a depth equal to that of the groove 3.
  • the pitch P 2 is determined so as to satisfy the basic condition in relation to a size D 2 of the material S to be treated corresponding to a gap W 2 (See Fig. 1) in the crushing chamber C between the intermediate surface portion of the teeth plate member 2 and the concave 4.
  • a plurality of grooves 7 are formed to the lower portion of the teeth plate member 2 so as to extend parallelly in the same direction of the generating line g of the mantle 1 and disposed with spaces with each other along the peripheral surface of the mantle 1 with pitches P 3 each narrower than that of P 2 .
  • Each of the grooves 7 has a width smaller than that of the groove 6 and a depth equal to that of the groove 6.
  • the pitch P 3 is determined so as to satisfy the basic condition in relation to a size D 3 of the material S to be treated corresponding to a gap W 3 (See Fig. 1) in the crushing chamber C between the lower surface portion of the teeth plate member 2 and the concave 4.
  • the pitches and the widths of the grooves 3, 6, 7 formed to the outer peripheral surface of the mantle 1 are made smaller or narrower from the upper portion towards the lower portion in three circumferential stages along the material flow direction f , and the grooves 3, 6, 7 are also increased in number in the respective stages.
  • the materials S each having the size D 1 fed from the upper side of a crushing chamber C formed between the mantle 1 and the concave 4 are first crushed in an ideal state at the upper portion of the crushing chamber C into materials each having a size D 2 .
  • These materials S are then fallen down into an intermediate portion of the crushing chamber C and subjected to the crushing operation by the intermediate teeth portion having grooves 6 of the structures described above into materials each having a size D 3 .
  • the materials S thereafter fall down into the lower crushing chamber C and are subjected to the same crushing operation into materials each having a desired size, and the materials thus crushed in three stages are finally discharged out of the gyratory crusher.
  • Fig. 8 shows a second embodiment according to the present invention, which includes a mantle 8 as a crushing member having a teeth plate member 2 having substantially the same grooved structure in the upper portion thereof as that of the first embodiment shown in Fig. 1. Namely, the outer peripheral surface of the teeth plate member 2 is divided into three, i.e. upper, intermediate and lower, circumferential stage portions along the material flow direction f thereof. The grooves 3 are formed to the upper portion of the peripheral surface of the teeth plate member 2 as shown in Figs. 8 and 9.
  • groove forming members 9 formed of a mild steel such as SS41 (JIS) and each having substantially a rectangular shape and having a thickness smaller than the width of the groove 3.
  • the groove forming members 9 are disposed parallelly along the outer peripheral surface of the teeth plate member 2 so as to extend in the direction of the generating line g of the teeth plate member 2 with spaces and with pitches each being smaller than that of the groove 3.
  • the groove forming members 9 are cast into the peripheral surface of the teeth plate member 2 so that the side portions thereof are exposed outward from the peripheral surface of the teeth plate member 2.
  • groove forming members 10 formed of the same material as that of the groove forming members 9, and each having substantially a rectangular shape and having a thickness smaller than that of the groove forming member 9.
  • the groove forming members 10 are also disposed parallelly along the outer peripheral surface of the teeth plate member 2 so as to extend in the direction of the generating line of the teeth plate member 2 with spaces and with pitches each being smaller than that of the groove forming member 9.
  • the groove forming members 10 are casted into the peripheral surface of the teeth plate member 2 so that the side portions thereof are exposed outwardly from the peripheral surface of the teeth plate member 2.
  • grooves are formed at portions corresponding to the groove forming members 9 and 10 by the wearing at the time of the crushing of the materials to be treated. Accordingly, substantially the same effects as that of the first embodiment can be achieved.
  • grooves obtained have narrower widths and deeper depths than those formed by casting.
  • the outer peripheral surface of the mantle is divided into three circumferential stages along the material flow direction.
  • the present invention is not limited to this structure and the peripheral surface may be divided into two or more than three stages.
  • grooved structures of the present embodiments may also be applied to the concave 4 of the gyratory crusher, which has an inverted frustoconical inner surface structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
EP92105382A 1991-03-27 1992-03-27 Crushing member of gyratory crusher Expired - Lifetime EP0506126B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3087842A JPH0771641B2 (ja) 1991-03-27 1991-03-27 旋動式破砕機の歯板
JP87842/91 1991-03-27

Publications (2)

Publication Number Publication Date
EP0506126A1 EP0506126A1 (en) 1992-09-30
EP0506126B1 true EP0506126B1 (en) 1997-03-12

Family

ID=13926158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105382A Expired - Lifetime EP0506126B1 (en) 1991-03-27 1992-03-27 Crushing member of gyratory crusher

Country Status (6)

Country Link
EP (1) EP0506126B1 (ko)
JP (1) JPH0771641B2 (ko)
KR (3) KR940006972B1 (ko)
AU (2) AU636531B2 (ko)
DE (1) DE69218014T2 (ko)
ZA (1) ZA921817B (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2782148B2 (ja) * 1993-05-12 1998-07-30 川崎重工業株式会社 羽根を備えた旋動式破砕機
US8281473B2 (en) * 2010-04-23 2012-10-09 Flsmidth A/S Wearable surface for a device configured for material comminution
CN110020481B (zh) * 2019-04-10 2023-05-02 江西理工大学 多梯度结构增强型圆锥破碎机衬板及其设计方法
CN112727492B (zh) * 2021-01-28 2023-02-24 中铁工程装备集团有限公司 一种用于土压平衡盾构土渣输送的螺旋输送机
CN113117598B (zh) * 2021-04-20 2022-10-25 众智机械(临沂)有限公司 一种用于肥料制备的高塔造粒装置
FI4115979T3 (fi) 2021-07-07 2024-05-20 Metso Finland Oy Mantteli kara- tai kartiomurskaimeen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454994A (en) * 1982-02-04 1984-06-19 Johnson Louis W Load bearing surface
US4697745A (en) * 1986-02-24 1987-10-06 Rexnord Inc. Method and apparatus for high performance conical crushing
AU578377B2 (en) * 1986-09-30 1988-10-20 Kawasaki Jukogyo Kabushiki Kaisha Gyratory crusher
JPS63143949A (ja) * 1986-12-09 1988-06-16 アイエヌジ商事株式会社 粉砕機に使用される破砕面部材
JPS6463052A (en) * 1987-09-03 1989-03-09 Kawasaki Heavy Ind Ltd Rotary crusher

Also Published As

Publication number Publication date
KR950035569A (ko) 1995-12-30
DE69218014T2 (de) 1997-10-16
ZA921817B (en) 1992-11-25
AU641329B2 (en) 1993-09-16
AU1219492A (en) 1992-10-15
AU636531B2 (en) 1993-04-29
KR970005343B1 (ko) 1997-04-15
EP0506126A1 (en) 1992-09-30
JPH0771641B2 (ja) 1995-08-02
KR920017719A (ko) 1992-10-21
DE69218014D1 (de) 1997-04-17
JPH04298248A (ja) 1992-10-22
KR940006972B1 (ko) 1994-08-03
AU3286293A (en) 1993-04-22
KR950035570A (ko) 1995-12-30
KR970005342B1 (ko) 1997-04-15

Similar Documents

Publication Publication Date Title
EP1017499B1 (en) Rock crusher having crushing-enhancing inserts
DE3787791T2 (de) Zerkleinerungselemente für Zerkleinerungsmaschinen.
DE102019204836B3 (de) Exzenterwalzenbrechbackensatz und Exzenterwalzenbrechanlage umfassend einen solchen Brechbackensatz
ZA200606924B (en) Milling rollers for vertical miller
EP0506126B1 (en) Crushing member of gyratory crusher
US5080294A (en) Gyratory mantle liner assembly
WO2016181574A1 (ja) 破砕機用の刃板及び破砕機
CA1182088A (en) Synchronously coordinated counterrotated crusher roll teeth system
US5950940A (en) Apparatus for comminuting sheet metal or similar material
EP0187252A2 (de) Prallmühle zum Zerkleinern von Gestein od. dgl.
EP0567077B1 (en) Crushing member of gyrating-type crushers
JP4579035B2 (ja) 破砕面部材
JP2535291B2 (ja) 破砕機の歯板
JP2524936B2 (ja) 破砕機の歯板
AU2008201356B2 (en) Rock box liners
JP3155149B2 (ja) ジョークラッシャ用の固定ジョープレート
JP2782130B2 (ja) 旋動式破砕機の歯板
EP4115979B1 (en) Mantle for a gyratory or cone crusher
JPH05317731A (ja) 破砕機の歯板
JPH05104008A (ja) 旋動式破砕機の歯板
JPH03118847A (ja) コーンクラッシャ用ライナ
JPH05317734A (ja) 破砕機の歯板
JPH067692A (ja) 旋動式破砕機の歯板構造
MXPA06009927A (en) Milling rollers for vertical miller

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19920327

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT

17Q First examination report despatched

Effective date: 19940414

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT

REF Corresponds to:

Ref document number: 69218014

Country of ref document: DE

Date of ref document: 19970417

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010319

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010321

Year of fee payment: 10

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050327