EP0246775A2 - Mineral breaker - Google Patents
Mineral breaker Download PDFInfo
- Publication number
- EP0246775A2 EP0246775A2 EP87303933A EP87303933A EP0246775A2 EP 0246775 A2 EP0246775 A2 EP 0246775A2 EP 87303933 A EP87303933 A EP 87303933A EP 87303933 A EP87303933 A EP 87303933A EP 0246775 A2 EP0246775 A2 EP 0246775A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- teeth
- breaker
- drums
- mineral
- support member
- 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.)
- Withdrawn
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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
- B02C4/18—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a bar
Definitions
- the present invention relates to a mineral breaker.
- the present invention relates to a mineral breaker including a pair of rotatable drums each of which are provided with opposed breaker teeth.
- the teeth on each drum are arranged in circumferentially extending groups and the groups on the drums are staggered so that teeth in one group on one drum pass between neighbouring groups of teeth on the other drum.
- the present invention provides such a mineral breaker which further includes a breaker bar assembly having a plurality of breaker teeth extending longitudinally of the drums and located between and beneath the axes of rotation of the drums so as to co-operate with the breaker teeth on the opposed drums for breaking oversized lumps of mineral.
- the plurality of breaker teeth are arranged on an elongate support member which is mounted at opposite ends to opposed end walls of the breaker housing.
- the elongate support member is cast from a suitable ductile steel.
- the teeth are preferably each in the form of a base formed integrally with the support member and to which a removal tooth cap is attached.
- Each tooth cap is preferably formed of a hard wearing steel such as a high manganese steel.
- the mineral breaker l0 shown in Figures l to 3 includes a housing l2 in which is rotatably housed a pair of breaker drums l4.
- Each drum includes breaker teeth l6 which are arranged in circumferentially extending groups l8.
- the groups l8 on one drum are staggered in relation to the groups l8 on the other drum such that the teeth on one drum sweep in between teeth of adjacent groups on the other drum.
- Each drum l4 and teeth l6 may be of any desired construction; preferably the teeth l6 are constructed in accordance with the construction disclosed in our United Kingdom Patent Application No. 85l95l6.
- Each end wall 20 of the housing is preferably constructed from three side wall end portions 20 a , 20 b and 20 c which are bolted together.
- Each portion 20 a , 20 b and 20 c are preferably a steel casting.
- Portions 20 a and 20 b are provided with recesses so as to define therebetween bearing housings 24 (only two of which is visible) in which bearings 26 are located.
- the bearings 26 rotatably support the drum shafts 27 (only one of which is visible).
- a breaker bar assembly 30 extends between and is supported by opposed end portions 20 c .
- the assembly 30 includes a main elongate support body 3l having support flanges 32 integrally formed at each end.
- the support flanges 32 overlap a flange 20 d formed on portion 20 c and are thus supported thereby.
- Shims 38 are located between support flanges 32 and flanges 20 d in order to provide height adjustment of the breaker bar assembly 30 relative to the breaker drums l4.
- the support flanges 32 are held in position by bolts 34.
- a series of tooth bases 40 project from each longitudinal side of the main support body 3l.
- the tooth bases 40 of each series are spaced from one another to define gaps 4l through which breaker teeth l6 on a facing breaker drum may sweep through on rotation of the drum.
- each tooth cap 50 has a recess or pocket 5l which seats upon an elongate projection 53.
- the dimensions of the pocket 5l and corresponding projection 53 are such as to provide a tight fit to effectively key the tooth cap in position so as to accommodate working loadings.
- Each tooth cap 50 is held in place on a projection 53 by means of bolts 55.
- the external profile of the tooth caps 50 is chosen to cater for the type of mineral to be broken and so the shape may vary accordingly. However it is preferred to provide a raised central portion 56 which as seen in Figure 3 is located centrally between the drums l4. The central portions 56 of all the tooth caps are aligned longitudinally of the support 3l preferably contiguous to collectively form a ridge or shed.
- the provision of the breaker bar assembly 30 enables the mineral breaker to size mineral from a relatively large size to a relatively small size in one pass.
- mineral lumps of say up to one metre cube size into the machine and obtain mineral lumps not exceeding say 200 mm cube size.
- This is very advantageous as it means that one machine can be used at a mineral winning location to break down won mineral to a size suitable for conveying the mineral away.
- Size variation of the obtained product may be achieved by adjusting the height of the breaker bar assembly relative to the breaker drums.
- a breaker bar enables the breaker drums l4 to be independently driven which is advantageous as it enables optimum grip to be obtained on large lumps of mineral being gripped between the opposed leading faces of breaker teeth on opposite drums. It is however possible if desired, to drivingly connect both breaker drums and drive them with a single power source.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
Description
- The present invention relates to a mineral breaker.
- In particular, the present invention relates to a mineral breaker including a pair of rotatable drums each of which are provided with opposed breaker teeth. The teeth on each drum are arranged in circumferentially extending groups and the groups on the drums are staggered so that teeth in one group on one drum pass between neighbouring groups of teeth on the other drum.
- In a general aspect, the present invention provides such a mineral breaker which further includes a breaker bar assembly having a plurality of breaker teeth extending longitudinally of the drums and located between and beneath the axes of rotation of the drums so as to co-operate with the breaker teeth on the opposed drums for breaking oversized lumps of mineral.
- Preferably the plurality of breaker teeth are arranged on an elongate support member which is mounted at opposite ends to opposed end walls of the breaker housing.
- Preferably the elongate support member is cast from a suitable ductile steel.
- The teeth are preferably each in the form of a base formed integrally with the support member and to which a removal tooth cap is attached. Each tooth cap is preferably formed of a hard wearing steel such as a high manganese steel.
- Various aspects of the present invention are hereinafter described with reference to the accompanying drawings, in which:-
- Figure l is a side view, partly in section, of a mineral breaker according to the present invention;
- Figure 2 is a plan view, partly in section, of the mineral breaker shown in Figure l;
- Figure 3 is an end view, partly in section, of the mineral breaker shown in Figure l;
- Figure 4 is a plan view of a central breaker bar assembly incorporated in the mineral breaker shown in Figure l;
- Figure 5 is a side view of the breaker bar assembly shown in Figure 4; and
- Figure 6 is an underneath plan view of a breaker tooth cap which forms part of the breaker bar assembly.
- The mineral breaker l0 shown in Figures l to 3 includes a housing l2 in which is rotatably housed a pair of breaker drums l4. Each drum includes breaker teeth l6 which are arranged in circumferentially extending groups l8. The groups l8 on one drum are staggered in relation to the groups l8 on the other drum such that the teeth on one drum sweep in between teeth of adjacent groups on the other drum. Each drum l4 and teeth l6 may be of any desired construction; preferably the teeth l6 are constructed in accordance with the construction disclosed in our United Kingdom Patent Application No. 85l95l6.
- Each end wall 20 of the housing is preferably constructed from three side
wall end portions portion Portions bearings 26 are located. Thebearings 26 rotatably support the drum shafts 27 (only one of which is visible). - A
breaker bar assembly 30 extends between and is supported by opposed end portions 20c. Theassembly 30 includes a main elongate support body 3l havingsupport flanges 32 integrally formed at each end. Thesupport flanges 32 overlap a flange 20d formed on portion 20c and are thus supported thereby. Shims 38 are located betweensupport flanges 32 and flanges 20d in order to provide height adjustment of thebreaker bar assembly 30 relative to the breaker drums l4. Thesupport flanges 32 are held in position by bolts 34. - A series of
tooth bases 40 project from each longitudinal side of the main support body 3l. Thetooth bases 40 of each series are spaced from one another to define gaps 4l through which breaker teeth l6 on a facing breaker drum may sweep through on rotation of the drum. - Removably fixed to the upper surface of the main support body 3l and
tooth bases 40 aretooth caps 50. As seen in Figures 3 and 5 eachtooth cap 50 has a recess or pocket 5l which seats upon anelongate projection 53. Preferably the dimensions of the pocket 5l andcorresponding projection 53 are such as to provide a tight fit to effectively key the tooth cap in position so as to accommodate working loadings. - Each
tooth cap 50 is held in place on aprojection 53 by means ofbolts 55. - The external profile of the
tooth caps 50 is chosen to cater for the type of mineral to be broken and so the shape may vary accordingly. However it is preferred to provide a raisedcentral portion 56 which as seen in Figure 3 is located centrally between the drums l4. Thecentral portions 56 of all the tooth caps are aligned longitudinally of the support 3l preferably contiguous to collectively form a ridge or shed. - Consequently it is not possible for elongate pieces of material to lodge or reside at this position.
- The provision of the
breaker bar assembly 30 enables the mineral breaker to size mineral from a relatively large size to a relatively small size in one pass. Thus it is possible to feed mineral lumps of say up to one metre cube size into the machine and obtain mineral lumps not exceeding say 200 mm cube size. This is very advantageous as it means that one machine can be used at a mineral winning location to break down won mineral to a size suitable for conveying the mineral away. - Size variation of the obtained product may be achieved by adjusting the height of the breaker bar assembly relative to the breaker drums.
- In addition the provision of a breaker bar enables the breaker drums l4 to be independently driven which is advantageous as it enables optimum grip to be obtained on large lumps of mineral being gripped between the opposed leading faces of breaker teeth on opposite drums. It is however possible if desired, to drivingly connect both breaker drums and drive them with a single power source.
- In addition positive sizing is achieved since it is not possible for mineral lumps of a greater than predetermined size to pass through the machine.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB868612202A GB8612202D0 (en) | 1986-03-20 | 1986-03-20 | Mineral breaker |
GB8612202 | 1986-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0246775A2 true EP0246775A2 (en) | 1987-11-25 |
EP0246775A3 EP0246775A3 (en) | 1989-02-01 |
Family
ID=10598107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87303933A Withdrawn EP0246775A3 (en) | 1986-03-20 | 1987-05-01 | Mineral breaker |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0246775A3 (en) |
CN (1) | CN87103574A (en) |
AU (1) | AU7292987A (en) |
GB (1) | GB8612202D0 (en) |
ZA (1) | ZA87655B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000035585A1 (en) * | 1998-12-15 | 2000-06-22 | Mmd Design & Consultancy Limited | A mineral breaker |
WO2005046874A1 (en) * | 2003-11-08 | 2005-05-26 | Mmd Design & Consultancy Limited | A drum construction for a mineral breaker |
CN101745442B (en) * | 2008-12-12 | 2011-08-10 | 上海建设路桥机械设备有限公司 | Wheel tooth type crusher |
CN101745443B (en) * | 2008-12-12 | 2011-08-10 | 上海建设路桥机械设备有限公司 | Rotor part for gear tooth type crusher |
CN105728164A (en) * | 2016-02-29 | 2016-07-06 | 李娟� | Heated mineral breaking equipment based on modular installation |
RU201396U1 (en) * | 2020-09-30 | 2020-12-14 | Общество с ограниченной ответственностью «Амитекс» | AUGER UNIT |
CN112718088A (en) * | 2021-01-26 | 2021-04-30 | 黎海军 | A soil prosthetic devices that hardens for municipal garden afforestation |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE385526C (en) * | 1923-11-24 | Funke & Esch | Slag crusher | |
EP0052165A1 (en) * | 1980-11-13 | 1982-05-26 | Mmd Design And Consultancy Limited | Mineral breakers |
DE3203328A1 (en) * | 1982-02-02 | 1983-08-11 | Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster | ROLL BREAKER |
EP0110665A2 (en) * | 1982-11-27 | 1984-06-13 | Peak Pattern Co. Limited | Comminuting apparatus |
EP0114725A2 (en) * | 1983-01-20 | 1984-08-01 | Mmd Design And Consultancy Limited | Mineral Breaker |
EP0124449A1 (en) * | 1983-03-18 | 1984-11-07 | Societe D'etudes Et De Realisation Thermiques S E R T | Waste shredder |
SE437477B (en) * | 1982-04-01 | 1985-03-04 | Tillverknings Ab Processproduk | Device for decomposition of material such as domestic waste, forest waste and similar |
GB2155808A (en) * | 1984-03-15 | 1985-10-02 | Mmd Design & Consultancy Isle | Mineral breaker |
-
1986
- 1986-03-20 GB GB868612202A patent/GB8612202D0/en active Pending
-
1987
- 1987-01-29 ZA ZA87655A patent/ZA87655B/en unknown
- 1987-05-01 EP EP87303933A patent/EP0246775A3/en not_active Withdrawn
- 1987-05-14 AU AU72929/87A patent/AU7292987A/en not_active Abandoned
- 1987-05-14 CN CN198787103574A patent/CN87103574A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE385526C (en) * | 1923-11-24 | Funke & Esch | Slag crusher | |
EP0052165A1 (en) * | 1980-11-13 | 1982-05-26 | Mmd Design And Consultancy Limited | Mineral breakers |
DE3203328A1 (en) * | 1982-02-02 | 1983-08-11 | Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster | ROLL BREAKER |
SE437477B (en) * | 1982-04-01 | 1985-03-04 | Tillverknings Ab Processproduk | Device for decomposition of material such as domestic waste, forest waste and similar |
EP0110665A2 (en) * | 1982-11-27 | 1984-06-13 | Peak Pattern Co. Limited | Comminuting apparatus |
EP0114725A2 (en) * | 1983-01-20 | 1984-08-01 | Mmd Design And Consultancy Limited | Mineral Breaker |
EP0124449A1 (en) * | 1983-03-18 | 1984-11-07 | Societe D'etudes Et De Realisation Thermiques S E R T | Waste shredder |
GB2155808A (en) * | 1984-03-15 | 1985-10-02 | Mmd Design & Consultancy Isle | Mineral breaker |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000035585A1 (en) * | 1998-12-15 | 2000-06-22 | Mmd Design & Consultancy Limited | A mineral breaker |
WO2005046874A1 (en) * | 2003-11-08 | 2005-05-26 | Mmd Design & Consultancy Limited | A drum construction for a mineral breaker |
AU2004289509B2 (en) * | 2003-11-08 | 2008-08-21 | Mmd Design & Consultancy Limited | A drum construction for a mineral breaker |
US7658343B2 (en) | 2003-11-08 | 2010-02-09 | Mmd Design & Consultancy Limited | Drum construction for a mineral breaker |
CN101745442B (en) * | 2008-12-12 | 2011-08-10 | 上海建设路桥机械设备有限公司 | Wheel tooth type crusher |
CN101745443B (en) * | 2008-12-12 | 2011-08-10 | 上海建设路桥机械设备有限公司 | Rotor part for gear tooth type crusher |
CN105728164A (en) * | 2016-02-29 | 2016-07-06 | 李娟� | Heated mineral breaking equipment based on modular installation |
RU201396U1 (en) * | 2020-09-30 | 2020-12-14 | Общество с ограниченной ответственностью «Амитекс» | AUGER UNIT |
CN112718088A (en) * | 2021-01-26 | 2021-04-30 | 黎海军 | A soil prosthetic devices that hardens for municipal garden afforestation |
Also Published As
Publication number | Publication date |
---|---|
GB8612202D0 (en) | 1986-06-25 |
AU7292987A (en) | 1987-10-01 |
CN87103574A (en) | 1987-12-02 |
EP0246775A3 (en) | 1989-02-01 |
ZA87655B (en) | 1987-09-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0167178B1 (en) | Mineral sizers | |
US5598981A (en) | Hammermill | |
US4799627A (en) | Mineral sizers | |
US7658343B2 (en) | Drum construction for a mineral breaker | |
US4519551A (en) | Replaceable protective caps for spider arms of a reversible hammer mill | |
US7708219B2 (en) | Mineral breaker | |
EP0110665B1 (en) | Comminuting apparatus | |
EP0246775A2 (en) | Mineral breaker | |
US1864973A (en) | Rock breaker | |
GB2215237A (en) | Centrifugal refining crusher | |
US5320293A (en) | Rotary grinder exploying blades | |
CN104203418A (en) | Improvements in the mounting of wear parts for vertical shaft impact crushers | |
GB2198060A (en) | An impact mill for crushing hard material | |
US4953793A (en) | Bowl-and-roller mill | |
WO2000035585A1 (en) | A mineral breaker | |
US5772135A (en) | Jaw crushers | |
CA1153347A (en) | Mineral breakers | |
GB2110113A (en) | Impeller bar for hammer type mill | |
US4580736A (en) | Cage mill | |
CA2216389A1 (en) | Rotor for shredders and hammermills | |
US3608840A (en) | Nonclogging impact crusher | |
EP0052165A1 (en) | Mineral breakers | |
US4635863A (en) | Reversible, axially fed, cage rotor impact breaker | |
AU625367B2 (en) | A rotor having protective shields for a crushing machine | |
EP0403694A3 (en) | Continuous crusher |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19890802 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: POTTS, ALAN |