EP0403694A2 - Concasseur continu - Google Patents

Concasseur continu Download PDF

Info

Publication number: EP0403694A2
Authority: EP; European Patent Office
Prior art keywords: striking; polygon; disks; roller; tools
Prior art date: 1989-06-21
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

EP89120969A

Other languages

German (de)

English (en)

Other versions

EP0403694B1 (fr

EP0403694A3 (fr

Inventor

Heinrich Haake

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.)

Mueller Herne Pumpen Maschinen Stahlbau GmbH

Original Assignee

Mueller Herne Pumpen Maschinen Stahlbau 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.)

1989-06-21

Filing date

1989-11-11

Publication date

1990-12-27

1989-11-11 Application filed by Mueller Herne Pumpen Maschinen Stahlbau GmbH filed Critical Mueller Herne Pumpen Maschinen Stahlbau GmbH

1990-12-27 Publication of EP0403694A2 publication Critical patent/EP0403694A2/fr

1991-06-19 Publication of EP0403694A3 publication Critical patent/EP0403694A3/fr

1994-07-06 Application granted granted Critical

1994-07-06 Publication of EP0403694B1 publication Critical patent/EP0403694B1/fr

2009-11-11 Anticipated expiration legal-status Critical

Status 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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers

Definitions

the invention relates to a continuous crusher according to the preamble of claim 1.
Continuous crushers according to the invention differ from so-called intake crushers, among others. through the arrangement and design of their abutment. Since inlet crushers are arranged above a conveyor trough and use their own crushing bar, they require a certain passage height above which the crushed material is conveyed downwards. Continuous crushers, on the other hand, use the stationary construction of a conveyor as a crushing abutment and therefore do not consume any head. They are therefore particularly suitable for underground operations, the underground rooms of which are usually low in height. The known flow crusher of this type are therefore mainly used to shred the conveyed material, which consists of a mixture of coals and mountains.
the impact roller which forms the movable crushing element of the flow crusher according to the invention, rotates in the conveying direction of the conveyor forming the crushing abutment with its channel. This distinguishes the continuous crusher according to the invention from other continuous crushers, whose beater roller is opposite to the Direction of conveyance circulates. In the case of the latter flow crushers, this results in a different crushing effect.
the impact roller rotating against the conveying direction allows the impact tools to dip into the material to be crushed, which dig out the oversize grain in the crushing gap and fling it upwards, which then impacts a stationary crushing bar and is thereby broken.
the oversize is opened and split by one or more of the rapidly rotating impact tools and is not crushed between the crushing tools and the conveyor trough or hurled onto the conveyor trough. Only after the oversize has been crushed is the crushed material thrown into the space behind the beater roller and transported on by the conveyor.
This mode of operation which supports the conveyance, is advantageous, but presupposes that the striking tools have sufficient impact energy.
the invention is based on a previously known flow crusher (DE-PS 2 554 111). Its peculiarity is that the crushing roller builds a compact unit from welded fillet welded or cast together, alternating and congruent circular plates and hub-shaped discs, as well as rotating is firmly connected to the drive shaft on both sides. As a result, the impact roller and the shaft are protected, and an energy-consuming, unsteady rotation of the roller is avoided, so that high breaking performance is achieved.
the holders of the striking tools which are thereby immovably fixed on the disks, are arranged on striking arms which are formed in one piece and in pairs on each disk.
the discs therefore form hubs, from which the striking arms project radially like spokes.
the two striking arms of each disc are offset from each other by a semicircle.
the number of discs is even and the disc offset is offset by a quarter circle. This causes the impact roller to be balanced, which is a prerequisite for high speeds.
Such a continuous crusher can have two rollers arranged one behind the other and has a throughput of approx. 350 t / h in the case of material to be conveyed consisting of coal and accompanying rock, the impact roller rotating at approx. 350 rpm.
the crushed material to be crushed has an upper limit of approx. 250 to 300 mm.
the crushed material has a size of approx. 800 x 600 x 1500 mm.
mountains are to be conveyed hydraulically, because the crushed material has to be broken down to maximum grain sizes of 80 to 120 mm. If such mountains consist of hard rock, such as sand shale or sandstone, they can also be crushed only with difficulty because when they strike a striking tool they are not thrown out into the crushing gap, but in the opposite direction and then pose a considerable danger to the environment of the flow breaker.
the invention has for its object to provide a continuous crusher of the type described, which breaks down a crushed material, in particular from mountains, to smaller grain sizes and works as intended as described.
the number of crushing tools is significantly increased, which are attached to a disc with holders, so that there is a multiplication of the striking tools over the entire crushing roller. It is also known by the previous ten hubs achieved by the omission of the crushing arms significantly enlarged disc diameter, so that each time a crushing tool strikes an oversize of the crushed material, the braking that occurs is compensated. Contrary to the expectation that a crushing roller designed in this way, especially if it only has to crush mountains and also hard mountains, for example from sand slate, will throw the oversize out of the crushing gap, the opposite is the case. Rather, the crushing roller runs smoothly and throws the broken oversize into the space behind the beater roller.
the enlargement of the circular plates in diameter to a diameter that is larger than the polygon of the disc edges in turn increases the mass of the impact roller and makes it insensitive to the multiplication of the braking processes that occur when breaking and splitting the oversize particles. It also prevents the occurrence of oversize particles in the crushed material behind the beater roller, so that the continuous crusher according to the invention delivers an evenly broken down product.
the invention has the advantage that it breaks down coarse crushed material in one pass to substantially smaller grain sizes, for example to the required 80 to 120 mm, with smooth running of the beater roller being guaranteed, which protects the beater roller and its shaft.
the Impact roller can therefore be driven via V-belts without excessive slip occurring in the drive.
V-belt drives are particularly useful in flow breakers in order to be able to elastically transmit the required drive energies. In fact, it has been found that the throughputs can be increased to approximately 2000 t / h under comparable conditions with the flow crushers according to the invention.
the shaft (1) shown in Fig. 1 can accommodate on each of its twisted ends (2, 3) a non-rotatable drive pulley for a belt drive, which transmits the energy of a drive, not shown, to the shaft (1).
the drive sits stationary on a conveyor trough, not shown, which serves as an abutment.
the beater roller (4) rotates in the conveying direction of the conveyor to which the conveyor trough belongs. It is composed of three circular plates (5, 6 and 7) and four disks (8-11).
the expression compound means different form-fitting or non-positive connections, e.g. B.
the crushing roller has a disk (12 or 13) on both ends, the diameter of which is larger than that of the congruent circular plates (5-7).
These outer disks (12, 13) are congruent and provided with a recess (14) on the outside.
a flange (15) is countersunk in the recess, through which the screws (16), which are arranged on a pitch circle, penetrate and on which the screws are supported with their heads.
the screws (16) serve to fasten the disks (12 and 13) with the arrangement of the congruent circular plates (5-7) and the congruent disks (8-11), as well as with an annular flange (17) on each side of the shaft ( 1) to brace.
the shaft is also wedged with the beater roller (4), as shown at (18). This guarantees an absolutely rotationally fixed connection of the beater roller (4) to the shaft (1).
the disc (8) shown in view in Fig. 2 is provided with holders (19-24) which are integrally connected to the disc body (8). This has a circular recess (25) for the shaft (1) in the middle. Each holder carries an impact tool (26), only the impact tool (26) mounted in the holder (24) being shown for reasons of clarity in FIG. 2.
the striking tool has a forward, ie in the circumferential direction convex beating nose (27) and a shaft (28). It is welded with a back to a pin (29) which has a threaded end (30).
a clamping nut (31) fixes the pin (29) in a bore or cylindrical recess (33) in the holder (24) via one or more spring springs or spring washers (32).
the disc (8) has a polygonal edge (34).
the polygon thus formed has six sides (35-40), which corresponds to the number of six holders (24) and six striking tools (26). Since the holders (24) are each assigned to a polygon side (35-40), the striking tools (26) are arranged in a star shape.
Fig. 1 shows a total of four disks (8-11), which are congruent.
adjacent disks as shown in the example of disks (8 and 9), are each offset in the same direction by 30 degrees. The offset is always in one direction. As a result, the beater roller is balanced overall. It also means that each striking tool (26) acts separately on the oversize in the crushed material.
the circular plates (5-7) arranged between the disks (8-11) are so in diameter dimensioned so that their marginal edges (41) lie within the polygon circumscribed by the sides (35-40) of the polygon.
each polygon side (35-40) are provided with a right-angled, two-sided recess (44) in which the breaking tool (26) is supported with the rear of its part (28).
the crushing roller (4) rotates in the direction of the curved arrow (45), while the conveyor which defines the crushing gap conveys in the direction of the straight arrow (46). This ensures that the broken oversize grain is thrown into the space behind the crushing roller (4).

Landscapes

Engineering & Computer Science (AREA)
Food Science & Technology (AREA)
Crushing And Pulverization Processes (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

EP89120969A 1989-06-21 1989-11-11 Concasseur continu Expired - Lifetime EP0403694B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3920305		1989-06-21
DE3920305A DE3920305A1 (de)	1989-06-21	1989-06-21	Durchlaufbrecher

Publications (3)

Publication Number	Publication Date
EP0403694A2 true EP0403694A2 (fr)	1990-12-27
EP0403694A3 EP0403694A3 (fr)	1991-06-19
EP0403694B1 EP0403694B1 (fr)	1994-07-06

Family

ID=6383241

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89120969A Expired - Lifetime EP0403694B1 (fr)	1989-06-21	1989-11-11	Concasseur continu

Country Status (4)

Country	Link
EP (1)	EP0403694B1 (fr)
AT (1)	ATE108094T1 (fr)
DE (2)	DE3920305A1 (fr)
ES (1)	ES2056178T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1995027563A1 (fr) *	1994-04-11	1995-10-19	Mount Isa Mines Limited	Broyeur par frottement
WO1998058739A1 (fr) *	1997-06-23	1998-12-30	Mmd Design & Consultancy Limited	Broyeur de mineraux
US5984213A (en) *	1994-04-11	1999-11-16	Mount Isa Mines Limited	Attrition mill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4410309C2 (de) *	1994-03-25	2002-02-28	Westfalia Becorit Ind Tech	Schlagwalzenbrecher

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3061210A (en) *	1961-09-29	1962-10-30	Columbus Mckinnon Corp	Material handling machine
GB2116875B (en) *	1979-02-03	1984-03-21	Mmd Design And Consultance Lim	Mineral breakers
US4311284A (en) *	1980-02-08	1982-01-19	The W. R. Stamler Corporation	Device for fracturing material
GB2110954B (en) *	1981-12-05	1984-10-10	Dresser Europe Sa	Tool-holding mounting ring for crushing machine rotor
DE8630905U1 (de) *	1986-11-18	1987-03-12	Klöckner-Becorit GmbH, 4620 Castrop-Rauxel	Schlagwerkzeug

1989
- 1989-06-21 DE DE3920305A patent/DE3920305A1/de not_active Withdrawn
- 1989-11-11 AT AT89120969T patent/ATE108094T1/de active
- 1989-11-11 DE DE58908015T patent/DE58908015D1/de not_active Expired - Fee Related
- 1989-11-11 ES ES89120969T patent/ES2056178T3/es not_active Expired - Lifetime
- 1989-11-11 EP EP89120969A patent/EP0403694B1/fr not_active Expired - Lifetime

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1995027563A1 (fr) *	1994-04-11	1995-10-19	Mount Isa Mines Limited	Broyeur par frottement
US5797550A (en) *	1994-04-11	1998-08-25	Mount Isa Mines Limited	Attrition mill
US5984213A (en) *	1994-04-11	1999-11-16	Mount Isa Mines Limited	Attrition mill
WO1998058739A1 (fr) *	1997-06-23	1998-12-30	Mmd Design & Consultancy Limited	Broyeur de mineraux

Also Published As

Publication number	Publication date
ES2056178T3 (es)	1994-10-01
ATE108094T1 (de)	1994-07-15
DE3920305A1 (de)	1991-01-03
EP0403694B1 (fr)	1994-07-06
EP0403694A3 (fr)	1991-06-19
DE58908015D1 (de)	1994-08-11

Legal Events

Date	Code	Title	Description
1990-11-10	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
1990-12-27	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
1991-02-27	RBV	Designated contracting states (corrected)	Designated state(s): AT BE DE ES FR GB IT
1991-04-17	17P	Request for examination filed	Effective date: 19910215
1991-05-02	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
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1994-09-02	ET	Fr: translation filed
1994-09-21	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19940818
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1995-06-28	26N	No opposition filed
1997-10-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19971027 Year of fee payment: 9
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1999-05-31	BERE	Be: lapsed	Owner name: MULLER G.M.B.H. HERNE PUMPEN MASCHINEN STAHLBAU Effective date: 19981130
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