WO2003055607A1 - Insert for mineral breakers - Google Patents

Insert for mineral breakers Download PDF

Info

Publication number
WO2003055607A1
WO2003055607A1 PCT/ZA2002/000200 ZA0200200W WO03055607A1 WO 2003055607 A1 WO2003055607 A1 WO 2003055607A1 ZA 0200200 W ZA0200200 W ZA 0200200W WO 03055607 A1 WO03055607 A1 WO 03055607A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
extremity
holder
combination
zone
Prior art date
Application number
PCT/ZA2002/000200
Other languages
French (fr)
Inventor
Harold Albert Collins
Original Assignee
Collins, Shane, Crawford
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 Collins, Shane, Crawford filed Critical Collins, Shane, Crawford
Priority to AU2002359903A priority Critical patent/AU2002359903A1/en
Publication of WO2003055607A1 publication Critical patent/WO2003055607A1/en

Links

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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor

Definitions

  • This invention relates to an insert for a mineral breaker.
  • the wear pattern caused by the flowing mineral has the effect of eroding the zone in a certain pattern and this includes the zone immediately in contact with the insert. Such erosion eventually results in the insert becoming loose leading to its removal from the recess holding it in the holder.
  • At least two inserts were provided, the insert at or towards the extremity of the holder being at an obtuse angle to the flow of mineral material exiting the breaker.
  • the insert adjacent the extremity insert serves as a back-up for the extremity insert.
  • an insert for a mineral breaker is provided which is adapted to be located at the extremity of the holder to form a portion of the extreme surface of the holder unit the insert fitting into a recess in the holder and which has a surface forming the extremity of the holder, the surface comprising or including a curved zone intermediate the ends thereof.
  • the surface of the insert forming the extremity 5 of the holder has a curved portion which extends to or near the top zone of the holder and which also extends to or near the vertical surface of the extremity of the holder.
  • a back-up insert may be provided adjacent the insert forming the extremity surface of the holders.
  • a holder 40 includes a pair of recesses 42, 44, the former accommodating a back up insert 46 and the latter having an insert 48 which has a portion 15 50 located in the recess 44 and a major portion 52 which forms an extremity of the holder.
  • the angle between the portion 50 and the base of the portion 52 may be about 60 to 150 degrees but an angle of 90 degrees is shown in the drawing.
  • a radiused zone 56 is provided intermediate the ends of the outer portion 52 of the insert. This radiused or ⁇ curved zone extends approximately from the top zone of the holder to the vertical surface 20 of the extremity of the holder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

A combination of holder (40) and insert (48) for a mineral breaker has a recess (44) at or near its extremity to receive an insert which forms the extremity surface of the combination, the extreme surface being curved.

Description

INSERT FOR MINERAL BREAKERS
TECHNICAL FIELD OF THE INVENTION
This invention relates to an insert for a mineral breaker.
BACKGROUND ART
Many arrangements have been proposed for the location of hard inserts, such as tungsten carbide inserts, into the holders of mineral breakers with a view to strengthening those zones of the holders which are subjected to the most wear.
The wear pattern caused by the flowing mineral has the effect of eroding the zone in a certain pattern and this includes the zone immediately in contact with the insert. Such erosion eventually results in the insert becoming loose leading to its removal from the recess holding it in the holder.
In one solution of the problem, at least two inserts were provided, the insert at or towards the extremity of the holder being at an obtuse angle to the flow of mineral material exiting the breaker. The insert adjacent the extremity insert serves as a back-up for the extremity insert.
It was found that wear occurs in the zone on the outside of the extremity insert, this zone usually comprising steel which is subject to wear in normal operation.
It is an object of the present invention to overcome or at least greatly reduce the wear at the this zone.
DISCLOSURE OF THE INVENTION
According to the invention an insert for a mineral breaker is provided which is adapted to be located at the extremity of the holder to form a portion of the extreme surface of the holder unit the insert fitting into a recess in the holder and which has a surface forming the extremity of the holder, the surface comprising or including a curved zone intermediate the ends thereof.
In a preferred form of the invention the surface of the insert forming the extremity 5 of the holder has a curved portion which extends to or near the top zone of the holder and which also extends to or near the vertical surface of the extremity of the holder.
A back-up insert may be provided adjacent the insert forming the extremity surface of the holders.
BEST MODE FOR CARRYING OUT THE INVENTION
10 An embodiment of the invention is described below with reference to the accompanying drawing which is a sectional side view of a holder with an insert according to the invention
In the drawing a holder 40 includes a pair of recesses 42, 44, the former accommodating a back up insert 46 and the latter having an insert 48 which has a portion 15 50 located in the recess 44 and a major portion 52 which forms an extremity of the holder.
The angle between the portion 50 and the base of the portion 52 may be about 60 to 150 degrees but an angle of 90 degrees is shown in the drawing. A radiused zone 56 is provided intermediate the ends of the outer portion 52 of the insert. This radiused or^ curved zone extends approximately from the top zone of the holder to the vertical surface 20 of the extremity of the holder.
The curved nature of the surface considerably reduces the tendency of the insert to fracture if it included angled zones.

Claims

CLAIMS:
1. A combination holder and inserts for a mineral breaker characterised in that a recess is provided at or near its extremity adapted to receive an insert, a portion of the surface of which forming the extremity surface of the combination, such surface comprising or including a curved zone intermediate the ends thereof.
2. The combination as claimed in claim 1 characterised in that the surface of the insert forming the extremity surface of the combination has a curved portion extending from at or near the top zone of the holder to or near to the vertical surface thereof.
3. The combination as claimed in either of the above claims characterised in that a back-up insert is provided adjacent the insert forming the extremity of the combination.
4. A combination holder and insert substantially as described with reference to the accompanying drawing.
PCT/ZA2002/000200 2001-12-27 2002-12-09 Insert for mineral breakers WO2003055607A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002359903A AU2002359903A1 (en) 2001-12-27 2002-12-09 Insert for mineral breakers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2001/7059 2001-12-27
ZA200107059 2001-12-27

Publications (1)

Publication Number Publication Date
WO2003055607A1 true WO2003055607A1 (en) 2003-07-10

Family

ID=25589283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2002/000200 WO2003055607A1 (en) 2001-12-27 2002-12-09 Insert for mineral breakers

Country Status (2)

Country Link
AU (1) AU2002359903A1 (en)
WO (1) WO2003055607A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010359A1 (en) * 1993-10-14 1995-04-20 Tidco International Limited Accessory for mineral breaker
WO1995011086A1 (en) * 1993-10-22 1995-04-27 Barmac Associates Limited Mineral breakers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010359A1 (en) * 1993-10-14 1995-04-20 Tidco International Limited Accessory for mineral breaker
WO1995011086A1 (en) * 1993-10-22 1995-04-27 Barmac Associates Limited Mineral breakers

Also Published As

Publication number Publication date
AU2002359903A1 (en) 2003-07-15

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