EP0667187A1 - Waste shredder with external bearings connected to the housing - Google Patents
Waste shredder with external bearings connected to the housing Download PDFInfo
- Publication number
- EP0667187A1 EP0667187A1 EP95200300A EP95200300A EP0667187A1 EP 0667187 A1 EP0667187 A1 EP 0667187A1 EP 95200300 A EP95200300 A EP 95200300A EP 95200300 A EP95200300 A EP 95200300A EP 0667187 A1 EP0667187 A1 EP 0667187A1
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- EP
- European Patent Office
- Prior art keywords
- rotor
- plate
- side wall
- bearing
- crusher according
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
Definitions
- the invention relates to a waste crusher comprising at least one grinding rotor provided with grinding members such as rotary teeth and which extends in the lower part and inside a grinding box crossed by the waste during of their grinding.
- the body is generally formed by four side walls mounted on a chassis, namely two side walls parallel to the rotor (s) and two end side walls perpendicular to the rotor (s) which pass through at least one of these walls.
- Each rotor is carried and guided outside the body and opposite each end side wall through which it passes, by an external bearing mounted on the chassis.
- shredders with external bearings are generally less rigid than the shredders with internal bearings whose rotors are directly mounted on the body.
- shredders with external bearings are subject to vibrations, deformations and faster wear of the constituent elements and main assemblies.
- the load-bearing structure of the crusher frame (base, frame, support, slab, sealing, etc.) is subject to these vibrations and deformations.
- the invention therefore aims to overcome these drawbacks by proposing a mill with external bearings having increased reliability and longevity.
- the invention aims to propose an external bearing mill less subject to vibrations and deformations.
- the invention further aims to provide such a crusher whose maintenance is facilitated, and in particular whose constituent elements, and in particular the rotor (s) can (can) be dismantled without requiring the complete disassembly of the crusher and crate.
- the invention relates to a waste crusher comprising at least one grinding rotor extending inside a grinding box formed by four side walls mounted on a chassis, at least one rotor extending through at least one lateral end wall of the body and being carried outside the body and facing each end lateral wall which it crosses, by an external bearing mounted on the chassis, characterized in that 'It comprises rigid connecting means extending between each outer bearing and the body above the rotor (s), these rigid connecting means being rigidly fixed to the outer bearing and to the body which they connect.
- the rigid connection means are fixed to the top of the bearing, and comprise a rigid horizontal connection plate and a plate for fixing to the corresponding end side wall of the body.
- the fixing plate extends parallel to the lateral end wall, against this lateral end wall and inside the box.
- the fixing plate to the end side wall comprises, for each rotor passing through this side wall, a notch open towards the bottom allowing the mounting / dismounting of this fixing plate over the rotor.
- the lateral end wall of the body comprises, for each rotor passing through it, a notch open at the top allowing the engagement / disengagement of the rotor from above.
- each outer bearing consists of a lower half-bearing and an upper half-bearing clamped one against the other around the- (of) rotor (s) according to a horizontal joint plane passing through the axis (axes) of the rotor (s).
- the mill according to the invention comprises an external plate for receiving a seal and a cable gland for each rotor, and this external plate consists of an upper half-plate and a lower half-plate. mounted one on the other outside each end side wall and, around each rotor along a horizontal joint plane passing through the axis (axes) of the rotor (s).
- the crusher further comprises scraper combs interposed between grinding teeth carried by each rotor and each scraper comb consists of an upper half-comb surrounding an upper section portion of the rotor and a lower half-comb surrounding a lower section portion of the rotor.
- each rotor can be dismantled from the top without having to dismantle the entire body.
- the invention also relates to a crusher comprising in combination all or part of the characteristics mentioned above or below.
- the crusher according to the invention shown in the figures comprises two parallel rotors 1 rotating in opposite directions and carrying teeth 2 for grinding.
- the two rotors extend inside a grinding box 3 which is formed by four side walls, namely two side walls 4 parallel to the rotors 1, and two end side walls 5 perpendicular to the rotors 1.
- the Crushing box 3 is in the form of a bottomless hopper and contains the rotors 1.
- the side walls 4, 5 are mounted on a frame 6 which is formed of beams, and which supports all of the elements of the crusher.
- the two rotors 1 pass through the two end side walls 5 of the box 3, and are carried, outside this box 3, by external bearings 7 mounted on the frame 6 opposite each side wall respectively. end 5.
- the crusher according to the invention comprises rigid connection means 8 which extend between each outer bearing 7 and the body 3 above the rotors 1, and which are rigidly fixed on the one hand to the outer bearing 7, and on the other hand to the box 3 which they connect and secure.
- the mill has symmetry with respect to a central vertical axis, and its two axial ends are identical. Thereafter, only one of these axial ends and described.
- the rigid connecting means 8 are rigidly fixed on one side to the top of the outer bearing 7 which carries the two rotors 1, and on the other side to the end side wall 5 which is crossed by the rotors 1 and which s 'extends opposite the outer bearing 7.
- the rigid connection means 8 consist of a square reinforcement 8 forming a rigid horizontal connection plate 9, and a vertical plate 10 for attachment to the end end wall 5 of the body 3.
- the external bearing 7 has a horizontal upper face 11, and the connecting plate 9 rests and is fixed on this face 11 by four vertical screws 12 extending through holes 13 of the plate 9. The screws 12 are engaged in tapped holes 14 with vertical axis in the bearing 7.
- the connecting plate 9 has a contour which corresponds to that of the upper face 11 of the bearing 7, so that this connecting plate 9 completely covers this upper face 11 on which it is supported.
- the outer bearing 7 consists of a lower half-bearing 7a, and an upper half-bearing 7b, these two half-bearings 7a, 7b being clamped one against the other around the two rotors 1 along a horizontal joint plane 15 passing through the axes 16 of the rotors 1.
- the two half-bearings 7a, 7b are tightened one against the other by clamping screws 17 arranged in pairs on each side of each rotor 1.
- the six clamping screws 17 extend vertically downward through vertical holes 18 passing through the upper half-bearing 7b, and are engaged in vertical threads 19 formed in the lower half-bearing 7a.
- the connecting plate 9 has through cylindrical openings 20 in which the heads of the screws 17 are housed and by which they are accessible. It is thus possible, if necessary, to tighten or loosen the clamping screws 17 from above without having to dismantle the rigid connection means 8.
- the grinding box 3 has a height identical to that of the outer bearings 7. If necessary, a waste supply hopper can be mounted above the grinding box 3 with vertical or inclined side walls extending upwards the vertical side walls 4, 5 of the grinding box 3 on which they are mounted by bolts engaged in vertical holes 62 of the walls of the box 3. In a variant not shown, the side walls 4, 5 of the grinding box 3 can also be slightly inclined relative to the vertical to facilitate the circulation of waste through the grinding rotors.
- the horizontal upper edge 21 of the lateral end wall 5 is level with the upper face 11 of the outer bearing 7, and the connecting plate 9 rests on this horizontal upper edge 21 of the lateral end wall 5.
- the plate 10 for fixing to the side wall 5 of the box 3 extends inside this box 3 vertically against the internal face 22 of the end side wall 5.
- the plate 10 for fixing is welded to the plate 9 connecting or machined in one piece with this connecting plate 9.
- the connecting plate 9 is fixed to the side wall 5 by two vertical screws 23 passing through holes 24 in the plate 9 and engaged in blind tapped holes 25 formed in the upper edge 21 of the end side wall 5 between the two rotors 1.
- the upper edge 21 of the end side wall 5 is extended parallel to the axes 16 of the rotors and outside of the body 3 by horizontal extensions 26 on which rest lateral wings 27 of the connecting plate 9. These lateral wings 27 extend horizontally projecting in the direction perpendicular to the rotors 1.
- Bolts 28 with vertical axes make it possible to tighten the wings 27 on the extensions 26.
- the fixing plate 10 comprises, for each rotor 1 passing through the lateral end wall 5, a notch 29 the opening of which is oriented downwards and which allows the mounting / dismounting of the fixing plate 10 over the rotors 1.
- the top 30 of these notches 29 is semi-cylindrical and surrounds the rotor 1 above.
- the end side wall 5 of the body 3 comprises, for each rotor 1 passing through it, a notch 31 open upwards and allowing the engagement / disengagement of the rotors 1 from above.
- the bottom 32 of these notches 31 is semi-cylindrical and surrounds below the rotor 1.
- each rotor 1 is wedged between the notch 29 of the fixing plate 10, and the notch 31 of the side wall 5.
- the fixing plate 10 is made of reinforced steel and / or covered with a protective shield.
- the fixing plate 10 carries an upper casing 33 which covers the first grinding tooth of one of the two rotors 1.
- An outer plate 34 is attached against the outer face of the end side wall 5 for mounting a seal 36 and a gland 35 around each rotor 1.
- Each gland 35 is constituted an upper half cable gland and a lower half cable gland, mounted one on the other with a joint plane passing through the axis 16 of the rotor 1.
- This plate 34 consists of a half upper plate 34b and a lower half-plate 34a mounted one on the other outside the end side wall 5 and around each rotor 1 according to a horizontal joint plane 37 passing through the axes 16 of the rotors 1.
- a semi-cylindrical notch 38a with opening oriented upwards is formed in the lower half-plate 34a for each rotor 1.
- a notch 38b of semi-cylindrical section with opening oriented downwards is formed in the half-plate upper 34b for each rotor 1.
- each rotor 1 is trapped in a cylindrical opening formed by the notches 38a, 38b in the plate 34 after tightening of the upper half-plates 34b and lower 34a one on the other.
- the lower half-plate 34a is fixed against the external face of the lateral end wall 5 by means of horizontal screws 40a engaged through horizontal bores 39a of this lower half-plate 34a and whose threaded free ends are engaged in horizontal threads 64 formed in the end side plate 5.
- the upper half-plate 34b is fixed against the external face of the end side wall 5 by means of horizontal screws 40b engaged through horizontal bores 39b of this half upper plate 34b, through horizontal holes 63 formed through the lateral end wall 5, and whose threaded free ends are engaged in horizontal threads 41 formed in the fixing plate 10.
- the upper half-plate 34b is therefore assembled with the fixing plate 10 on the end side wall 5 sandwiched between this half-plate 34b and the fixing plate 10.
- the cylindrical openings formed by the notches 38a, 38b of the half-plates 34a, 34b receive a seal 36 for sealing.
- a cable gland 35 is engaged in these cylindrical openings and fixed by horizontal screws 42 to the half-plates 34a, 34b to compress the seal 36 and seal the body 3 at the rotors 1.
- the screws 42 are tightened in threads of the half-plates 34a, 34b.
- the two half-bearings 7a, 7b of a bearing 7 trap, for each rotor 1, a bearing 43 for guiding this rotor 1.
- Each lower half-bearing 7a is fixed to the chassis 6 by bolts 44.
- Each rotor 1 is extended on one side of the body 3 beyond the bearing 7 to be coupled to a motor 45 carried by the chassis 6.
- the crusher further comprises scraping combs 46 interposed between the grinding teeth 2 which are carried by each rotor 1.
- Each scraping comb 46 consists of an upper half-comb 46b surrounding a portion of upper section of the rotor 1, and a lower half-comb 46a surrounding a lower section portion of the rotor 1.
- Each half-comb 46a, 46b is formed by a plate extending in a plane radial to the axis 16 of the rotor 1. Both half-combs 46a, 46b are mounted one above the other along a horizontal joint plane 47 passing through the axes 16 of the rotor 1.
- the two half-combs 46a, 46b are fixed together rigidly but so removable on a side wall 4 of the body 3 parallel to the rotor 1 by means of a common horizontal fixing angle 48 interposed between them and extending inside this side wall 4 on which it is mounted by clamping screws 49 horizontal accessible from outside the body 3.
- the common fixing angle 48 forms upper 50 and lower 51 longitudinal rails engaged in recesses 52, 53 corresponding to the upper half-comb 46b, respectively of the lower half-comb 46a.
- the upper half-combs 46b are also fixed by means of a horizontal upper angle 54 extending inside the side wall 4 on which it is mounted by clamping screws 55 accessible from the outside.
- This upper angle 54 defines a rail 56 engaged in a recess 57 formed at the upper corner of each upper half-comb 46b.
- each lower half-comb 46a is fixed by a horizontal bottom angle 58 mounted inside the side wall 4 by clamping screws 59 accessible from the outside.
- the lower angle 58 defines a rail 60 engaged in a recess 61 formed in the lower corner of each half-comb 46a.
- each half-comb 46a, 46b can be removed simply by loosening the screws 49 for tightening the common angle 48 and removing the upper angle 54 or the lower angle 58.
- This disassembly can be carried out without having to disassemble the rotors 1.
- the upper half-combs are released from the top and the lower half-combs are released from the bottom.
- the crusher 1 according to the invention can be easily and quickly assembled and disassembled, which facilitates its maintenance and lowers labor costs. It is nevertheless extremely rigid and can withstand significant powers relative to its dimensions.
- the horizontal connection plate 9 also has the function of protecting the seals 36 and the cable glands 35 for output from the rotors 1 and the bearings 43 of the bearings 7 from liquid projections, in particular those which would come from the upper hopper.
- the invention is also applicable to any other type of mill than that shown in the figures.
- the number of rotors can be different, and the mill can include one rotor or more than two rotors.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
L'invention concerne un broyeur à déchets comprenant au moins un rotor de broyage muni d'organes de broyage tels que des dents rotatives et qui s'étend en partie inférieure et à l'intérieur d'une caisse de broyage traversée par les déchets lors de leur broyage.The invention relates to a waste crusher comprising at least one grinding rotor provided with grinding members such as rotary teeth and which extends in the lower part and inside a grinding box crossed by the waste during of their grinding.
On connaît déjà de tels broyeurs à déchets mono ou multirotors de formes et dimensions variables en fonction de la nature et du volume des déchets à traiter, et de usage qui est fait du broyeur. La caisse est généralement formée de quatre parois latérales montées sur un châssis, à savoir deux parois latérales parallèles au(x) rotor(s) et deux parois latérales d'extrémité perpendiculaires au(x) rotor(s) qui traversent au moins une de ces parois. Chaque rotor est porté et guidé à l'extérieur de la caisse et en regard de chaque paroi latérale d'extrémité qu'il traverse, par un palier extérieur monté sur le châssis.We already know such single or multirotor waste shredders of variable shape and size depending on the nature and volume of the waste to be treated, and the use made of the shredder. The body is generally formed by four side walls mounted on a chassis, namely two side walls parallel to the rotor (s) and two end side walls perpendicular to the rotor (s) which pass through at least one of these walls. Each rotor is carried and guided outside the body and opposite each end side wall through which it passes, by an external bearing mounted on the chassis.
En disposant ainsi les paliers à l'extérieur de la caisse, on accroît la durée de vie de ces paliers, on peut laver l'intérieur de la caisse et les rotors à l'eau ou à la vapeur sous pression sans risque pour les paliers, et on peut broyer des déchets en milieu liquide ou sous aspersion de liquide. Par ailleurs, les tolérances de fabrication sévères imposées pour les paliers de guidage du(des) rotor(s) ne sont pas répercutées sur la fabrication de la caisse.By thus placing the bearings outside the box, it increases the service life of these bearings, it is possible to wash the inside of the box and the rotors with water or steam under pressure without risk for the bearings , and waste can be ground in a liquid medium or under liquid spraying. Furthermore, the severe manufacturing tolerances imposed for the guide bearings of the rotor (s) are not passed on to the manufacture of the body.
Néanmoins, on constate en pratique que les broyeurs à paliers extérieurs sont généralement moins rigides que les broyeurs à paliers intérieurs dont les rotors sont directement montés sur la caisse. En particulier les broyeurs à paliers extérieurs sont sujets aux vibrations, aux déformations et à une usure plus rapide des éléments constitutifs et des assemblages principaux. De plus, la structure porteuse du châssis du broyeur (piète- ment, charpente, support, dalle, scellement...) est soumise à ces vibrations et déformations.However, it is found in practice that the shredders with external bearings are generally less rigid than the shredders with internal bearings whose rotors are directly mounted on the body. In particular, shredders with external bearings are subject to vibrations, deformations and faster wear of the constituent elements and main assemblies. In addition, the load-bearing structure of the crusher frame (base, frame, support, slab, sealing, etc.) is subject to these vibrations and deformations.
L'invention vise donc à pallier ces inconvénients en proposant un broyeur à paliers extérieurs ayant une fiabilité et une longévité accrues. En particulier, l'invention vise à proposer un broyeur à palier extérieur moins sujet aux vibrations et aux déformations.The invention therefore aims to overcome these drawbacks by proposing a mill with external bearings having increased reliability and longevity. In particular, the invention aims to propose an external bearing mill less subject to vibrations and deformations.
L'invention vise en outre à proposer un tel broyeur dont la maintenance est facilitée, et notamment dont les éléments constitutifs, et en particulier le(les) rotor(s) peut (peuvent) être démonté(s) sans nécessiter le démontage intégral du broyeur et de la caisse.The invention further aims to provide such a crusher whose maintenance is facilitated, and in particular whose constituent elements, and in particular the rotor (s) can (can) be dismantled without requiring the complete disassembly of the crusher and crate.
Pour ce faire, l'invention concerne un broyeur à déchets comprenant au moins un rotor de broyage s'étendant à l'intérieur d'une caisse de broyage formée de quatre parois latérales montées sur un châssis, au moins un rotor s'étendant à travers au moins une paroi latérale d'extrémité de la caisse et étant porté à l'extérieur de la caisse et en regard de chaque paroi latérale d'extrémité qu'il traverse, par un palier extérieur monté sur le châssis, caractérisé en ce qu'il comporte des moyens rigides de liaison s'étendant entre chaque palier extérieur et la caisse au-dessus du(des) rotor(s), ces moyens rigides de liaison étant fixés rigidement au palier extérieur et à la caisse qu'ils relient.To do this, the invention relates to a waste crusher comprising at least one grinding rotor extending inside a grinding box formed by four side walls mounted on a chassis, at least one rotor extending through at least one lateral end wall of the body and being carried outside the body and facing each end lateral wall which it crosses, by an external bearing mounted on the chassis, characterized in that 'It comprises rigid connecting means extending between each outer bearing and the body above the rotor (s), these rigid connecting means being rigidly fixed to the outer bearing and to the body which they connect.
Avantageusement et selon l'invention, les moyens rigides de liaison sont fixés au sommet du palier, et comportent une plaque rigide horizontale de liaison et une plaque de fixation à la paroi latérale d'extrémité correspondante de la caisse. La plaque de fixation s'étend parallèlement à la paroi latérale d'extrémité, contre cette paroi latérale d'extrémité et à l'intérieur de la caisse.Advantageously and according to the invention, the rigid connection means are fixed to the top of the bearing, and comprise a rigid horizontal connection plate and a plate for fixing to the corresponding end side wall of the body. The fixing plate extends parallel to the lateral end wall, against this lateral end wall and inside the box.
Par ailleurs et selon l'invention, la plaque de fixation à la paroi latérale d'extrémité comporte, pour chaque rotor traversant cette paroi latérale, une échancrure ouverte vers le bas permettant le montage/le démontage de cette plaque de fixation par-dessus le rotor. De plus, la paroi latérale d'extrémité de la caisse comporte, pour chaque rotor la traversant, une échancrure ouverte vers le haut permettant l'engagement/le dégagement du rotor par le haut. Egalement, chaque palier extérieur est constitué d'un demi-palier inférieur et d'un demi-palier supérieur serrés l'un contre l'autre autour du-(des) rotor(s) selon un plan de joint horizontal passant par l'axe (les axes) du(des) rotor(s). Egalement, le broyeur selon l'invention comporte une plaque externe de réception d'un joint et d'un presse-étoupe pour chaque rotor, et cette plaque externe est constituée d'une demi-plaque supérieure et d'une demi-plaque inférieure montées l'une sur l'autre à l'extérieur de chaque paroi latérale d'extrémité et, autour de chaque rotor selon un plan de joint horizontal passant par l'axe (les axes) du(des) rotor(s). Selon l'invention, le broyeur comporte en outre des peignes de raclage interposés entre des dents de broyage portées par chaque rotor et chaque peigne de raclage est constitué d'un demi-peigne supérieur entourant une portion de section supérieure du rotor et d'un demi-peigne inférieur entourant une portion de section inférieure du rotor. Ainsi, le montage et le démontage des pièces maîtresses du broyeur selon l'invention (palier, rotor(s), dents de broyage, parois, peignes...) sont grandement facilités. En particulier, on peut démonter chaque rotor par le haut sans avoir à démonter toute la caisse.Furthermore and according to the invention, the fixing plate to the end side wall comprises, for each rotor passing through this side wall, a notch open towards the bottom allowing the mounting / dismounting of this fixing plate over the rotor. In addition, the lateral end wall of the body comprises, for each rotor passing through it, a notch open at the top allowing the engagement / disengagement of the rotor from above. Also, each outer bearing consists of a lower half-bearing and an upper half-bearing clamped one against the other around the- (of) rotor (s) according to a horizontal joint plane passing through the axis (axes) of the rotor (s). Also, the mill according to the invention comprises an external plate for receiving a seal and a cable gland for each rotor, and this external plate consists of an upper half-plate and a lower half-plate. mounted one on the other outside each end side wall and, around each rotor along a horizontal joint plane passing through the axis (axes) of the rotor (s). According to the invention, the crusher further comprises scraper combs interposed between grinding teeth carried by each rotor and each scraper comb consists of an upper half-comb surrounding an upper section portion of the rotor and a lower half-comb surrounding a lower section portion of the rotor. Thus, the assembly and disassembly of the main parts of the mill according to the invention (bearing, rotor (s), grinding teeth, walls, combs ...) are greatly facilitated. In particular, each rotor can be dismantled from the top without having to dismantle the entire body.
L'invention concerne aussi un broyeur comportant en combinaison tout ou partie des caractéristiques mentionnées ci-dessus ou ci-après.The invention also relates to a crusher comprising in combination all or part of the characteristics mentioned above or below.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante qui se réfère aux figures annexées dans lesquelles :
- - la figure 1 est une vue de dessus d'un broyeur selon l'invention,
- - la figure 2 est une vue de face et en coupe partielle selon la ligne II-II de la figure 1,
- - la figure 3 est une vue partielle en perspective éclatée illustrant l'assemblage des moyens rigides de liaison d'un broyeur selon l'invention,
- - la figure 4 est une vue en coupe selon la ligne IV-IV de la figure 2,
- - la figure 5 est une vue en perspective éclatée illustrant l'assemblage des peignes d'un broyeur selon l'invention.
- FIG. 1 is a top view of a grinder according to the invention,
- FIG. 2 is a front view and in partial section along the line II-II of FIG. 1,
- FIG. 3 is a partial exploded perspective view illustrating the assembly of the rigid connection means of a mill according to the invention,
- FIG. 4 is a sectional view along line IV-IV of FIG. 2,
- - Figure 5 is an exploded perspective view illustrating the assembly of the combs of a grinder according to the invention.
Le broyeur selon l'invention représenté sur les figures comporte deux rotors 1 parallèles tournant en sens inverses et portant des dents 2 de broyage. Les deux rotors s'étendent à l'intérieur d'une caisse 3 de broyage qui est formée de quatre parois latérales, à savoir deux parois latérales 4 parallèles aux rotors 1, et deux parois latérales d'extrémité 5 perpendiculaires aux rotors 1. La caisse 3 de broyage est en forme de trémie sans fond et contient les rotors 1. Les parois latérales 4, 5 sont montées sur un châssis 6 qui est formé de poutres, et qui supporte l'ensemble des éléments du broyeur. Les deux rotors 1 traversent les deux parois latérales d'extrémité 5 de la caisse 3, et sont portés, à l'extérieur de cette caisse 3, par des paliers 7 extérieurs montés sur le châssis 6 en regard respectivement de chaque paroi latérale d'extrémité 5.The crusher according to the invention shown in the figures comprises two
Le broyeur selon l'invention comporte des moyens 8 rigides de liaison qui s'étendent entre chaque palier 7 extérieur et la caisse 3 au-dessus des rotors 1, et qui sont fixés rigidement d'une part au palier extérieur 7, et d'autre part à la caisse 3 qu'ils relient et solidarisent.The crusher according to the invention comprises rigid connection means 8 which extend between each
Dans le mode de réalisation représenté, le broyeur présente une symétrie par rapport à un axe vertical central, et ses deux extrémités axiales sont identiques. Par la suite, une seule de ces extrémités axiales et décrite.In the embodiment shown, the mill has symmetry with respect to a central vertical axis, and its two axial ends are identical. Thereafter, only one of these axial ends and described.
Les moyens 8 rigides de liaison sont fixés rigidement d'un côté au sommet du palier 7 extérieur qui porte les deux rotors 1, et de l'autre côté à la paroi latérale d'extrémité 5 qui est traversée par les rotors 1 et qui s'étend en regard du palier 7 extérieur.The
Les moyens 8 rigides de liaison sont constitués d'un renfort en équerre 8 formant une plaque 9 rigide horizontale de liaison, et une plaque 10 verticale de fixation à la paroi latérale d'extrémité 5 de la caisse 3. Le palier 7 extérieur comporte une face supérieure horizontale 11, et la plaque 9 de liaison repose et est fixée sur cette face 11 par quatre vis verticales 12 s'étendant à travers des perçages 13 de la plaque 9. Les vis 12 sont engagées dans des taraudages 14 à axe vertical ménagés dans le palier 7. La plaque 9 de liaison a un contour qui correspond à celui de la face supérieure 11 du palier 7, de sorte que cette plaque 9 de liaison recouvre entièrement cette face supérieure 11 sur laquelle elle prend appui.The rigid connection means 8 consist of a
Par ailleurs, le palier 7 extérieur est constitué d'un demi-palier inférieur 7a, et d'un demi-palier supérieur 7b, ces deux demi-paliers 7a, 7b étant serrés l'un contre l'autre autour des deux rotors 1 selon un plan de joint horizontal 15 passant par les axes 16 des rotors 1. Les deux demi-paliers 7a, 7b sont serrés l'un contre l'autre par des vis 17 de serrage disposées par paires de chaque côté de chaque rotor 1. Les six vis 17 de serrage s'étendent verticalement vers le bas à travers des perçages 18 verticaux traversants du demi-palier supérieur 7b, et sont engagées dans des taraudages 19 verticaux ménagés dans le demi-palier inférieur 7a.Furthermore, the
La plaque 9 de liaison comporte des lumières cylindriques 20 traversantes dans lesquelles les têtes des vis 17 viennent se loger et par lesquelles elles sont accessibles. On peut ainsi au besoin serrer ou desserrer les vis 17 de serrage par le haut sans avoir à démonter les moyens 8 rigides de liaison.The connecting
La caisse 3 de broyage a une hauteur identique à celle des paliers 7 extérieurs. Au besoin, une trémie d'alimentation des déchets peut être montée au-dessus de la caisse 3 de broyage avec des parois latérales verticales ou inclinées prolongeant vers le haut les parois latérales 4, 5 verticales de la caisse 3 de broyage sur lesquelles elles sont montées grâce à des boulons engagés dans des perçages verticaux 62 des parois de la caisse 3. En variante non représentée, les parois 4, 5 latérales de la caisse 3 de broyage peuvent également être légèrement inclinées par rapport à la verticale pour faciliter la circulation des déchets à travers les rotors de broyage.The grinding box 3 has a height identical to that of the
Le chant supérieur 21 horizontal de la paroi latérale d'extrémité 5 est de niveau avec la face supérieure 11 du palier 7 extérieur, et la plaque 9 de liaison repose sur ce chant supérieur 21 horizontal de la paroi latérale 5 d'extrémité.The horizontal
La plaque 10 de fixation à la paroi latérale 5 de la caisse 3 s'étend à l'intérieur de cette caisse 3 verticalement contre la face interne 22 de la paroi latérale d'extrémité 5. La plaque 10 de fixation est soudée à la plaque 9 de liaison ou usinée d'un seul tenant avec cette plaque 9 de liaison. La plaque 9 de liaison est fixée à la paroi latérale 5 par deux vis 23 verticales traversant des perçages 24 de la plaque 9 et engagées dans des taraudages 25 borgnes ménagés dans le chant supérieur 21 de la paroi latérale d'extrémité 5 entre les deux rotors 1. Egalement, le chant supérieur 21 de la paroi latérale d'extrémité 5 est prolongé parallèlement aux axes 16 des rotors et à l'extérieur de la caisse 3 par des extensions 26 horizontales sur lesquelles viennent reposer des ailes latérales 27 de la plaque 9 de liaison. Ces ailes latérales 27 s'étendent horizontalement en saillie dans la direction perpendiculaire aux rotors 1. Des boulons 28 à axes verticaux permettent de serrer les ailes 27 sur les extensions 26.The
La plaque 10 de fixation comporte, pour chaque rotor 1 traversant la paroi latérale d'extrémité 5, une échancrure 29 dont l'ouverture est orientée vers le bas et qui permet le montage/le démontage de la plaque 10 de fixation par-dessus les rotors 1. Le sommet 30 de ces échancrures 29 est hémicylindrique et vient entourer le rotor 1 par-dessus.The
Egalement, la paroi latérale d'extrémité 5 de la caisse 3 comporte, pour chaque rotor 1 la traversant, une échancrure 31 ouverte vers le haut et permettant l'engagement/le dégagement des rotors 1 par le haut. Le fond 32 de ces échancrures 31 est hémicylindrique et entoure par-dessous le rotor 1. Ainsi, chaque rotor 1 est coincé entre l'échancrure 29 de la plaque 10 de fixation, et l'échancrure 31 de la paroi latérale 5.Also, the
La plaque 10 de fixation est constituée en acier renforcé et/ou recouverte d'un blindage de protection. La plaque 10 de fixation porte un carter 33 supérieur venant recouvrir la première dent de broyage de l'un des deux rotors 1.The fixing
Une plaque externe 34 est rapportée contre la face extérieure de la paroi latérale d'extrémité 5 pour le montage d'un joint 36 d'étanchéité et d'un presse-étoupe 35 autour de chaque rotor 1. Chaque presse-étoupe 35 est constitué d'un demi presse-étoupe supérieur et d'un demi presse-étoupe inférieur, montés l'un sur l'autre avec un plan de joint passant par l'axe 16 du rotor 1. Cette plaque 34 est constituée d'une demi-plaque supérieure 34b et d'une demi-plaque inférieure 34a montées l'une sur l'autre à l'extérieur de la paroi latérale d'extrémité 5 et autour de chaque rotor 1 selon un plan de joint 37 horizontal passant par les axes 16 des rotors 1. Une échancrure 38a hémicylindrique à ouverture orientée vers le haut est ménagée dans la demi-plaque inférieure 34a pour chaque rotor 1. Egalement, une échancrure 38b de section hémicylindrique à ouverture orientée vers le bas est ménagée dans la demi-plaque supérieure 34b pour chaque rotor 1. Ainsi, chaque rotor 1 est emprisonné dans une ouverture cylindrique formée par les échancrures 38a, 38b dans la plaque 34 après serrage des demi-plaques supérieure 34b et inférieure 34a l'une sur l'autre. La demi-plaque inférieure 34a est fixée contre la face externe de la paroi latérale d'extrémité 5 grâce à des vis 40a horizontales engagées à travers des perçages horizontaux 39a de cette demi-plaque inférieure 34a et dont les extrémités libres filetées sont engagées dans des taraudages horizontaux 64 ménagés dans la plaque latérale d'extrémité 5. La demi-plaque supérieure 34b est fixée contre la face externe de la paroi latérale d'extrémité 5 grâce à des vis 40b horizontales engagées à travers des perçages horizontaux 39b de cette demi-plaque supérieure 34b, à travers des perçages horizontaux 63 ménagés à travers la paroi latérale d'extrémité 5, et dont les extrémités libres filetées sont engagées dans des taraudages horizontaux 41 ménagés dans la plaque 10 de fixation. La demi-plaque supérieure 34b est donc assemblée avec la plaque 10 de fixation sur la paroi latérale d'extrémité 5 prise en sandwich entre cette demi-plaque 34b et la plaque 10 de fixation. Les ouvertures cylindriques formées par les échancrures 38a, 38b des demi-plaques 34a, 34b reçoivent un joint 36 d'étanchéité. Un presse-étoupe 35 est engagé dans ces ouvertures cylindriques et fixé par des vis horizontales 42 aux demi-plaques 34a, 34b pour comprimer le joint 36 et assurer l'étanchéité de la caisse 3 au niveau des rotors 1. Les vis 42 sont serrées dans des taraudages des demi-plaques 34a, 34b.An
Les deux demi-paliers 7a, 7b d'un palier 7 emprisonnent, pour chaque rotor 1, un roulement 43 de guidage de ce rotor 1. Chaque demi-palier inférieur 7a est fixé sur le châssis 6 grâce à des boulons 44. Chaque rotor 1 est prolongé d'un côté de la caisse 3 au-delà du palier 7 pour être accouplé à un moteur 45 porté par le châssis 6.The two half-
Le broyeur comporte en outre des peignes 46 de raclage interposés entre les dents de broyage 2 qui sont portées par chaque rotor 1. Chaque peigne 46 de raclage est constitué d'un demi-peigne supérieur 46b entourant une portion de section supérieure du rotor 1, et d'un demi-peigne inférieur 46a entourant une portion de section inférieure du rotor 1. Chaque demi-peigne 46a, 46b est formé d'une plaque s'étendant dans un plan radial à l'axe 16 du rotor 1. Les deux demi-peignes 46a, 46b sont montés l'un au-dessus de l'autre selon un plan de joint 47 horizontal passant par les axes 16 du rotor 1. Et les deux demi-peignes 46a, 46b sont fixés ensemble rigidement mais de façon amovible sur une paroi latérale 4 de la caisse 3 parallèle au rotor 1 grâce à une cornière de fixation commune 48 horizontale interposée entre eux et s'étendant à l'intérieur de cette paroi latérale 4 sur laquelle elle est montée par des vis de serrage 49 horizontales accessibles de l'extérieur de la caisse 3. La cornière 48 de fixation commune forme des rails longitudinaux supérieur 50 et inférieur 51 engagés dans des évidements 52, 53 correspondants du demi-peigne supérieur 46b, respectivement du demi-peigne inférieur 46a. Les demi-peignes supérieurs 46b sont également fixés grâce à une cornière supérieure 54 horizontale s'étendant à l'intérieur de la paroi latérale 4 sur laquelle elle est montée par des vis de serrage 55 accessibles de l'extérieur. Cette cornière supérieure 54 définit un rail 56 engagé dans un évidement 57 ménagé à l'angle supérieur de chaque demi-peigne supérieur 46b. De même, chaque demi-peigne inférieur 46a est fixé par une cornière inférieure 58 horizontale montée à l'intérieur de la paroi latérale 4 par des vis de serrage 59 accessibles de l'extérieur. La cornière inférieure 58 définit un rail 60 engagé dans un évidement 61 ménagé au coin inférieur de chaque demi-peigne 46a. Ainsi, tous les peignes 46 sont fixés sur la paroi latérale 4 parallèle à et en regard du rotor 1 par les cornières 48, 54, 58 de fixation s'étendant le long et à l'intérieur de la paroi latérale 4 sur laquelle elles sont montées par des vis 49, 55, 59 accessibles de l'extérieur de la caisse 3. Ainsi, chaque demi-peigne 46a, 46b peut être démonté simplement en desserrant les vis 49 de serrage de la cornière commune 48 et en ôtant la cornière supérieure 54 ou la cornière inférieure 58. Ce démontage peut être effectué sans avoir à démonter les rotors 1. Les demi-peignes supérieurs sont dégagés par le haut et les demi-peignes inférieurs sont dégagés par le bas.The crusher further comprises scraping combs 46 interposed between the grinding
Le broyeur 1 selon l'invention peut être aisément et rapidement monté et démonté, ce qui facilite sa maintenance et diminue les coûts de main-d'oeuvre. Il est néanmoins d'une extrêmement grande rigidité et peut supporter des puissances importantes relativement à ses dimensions. En outre, la plaque 9 de liaison horizontale a également pour fonction de protéger les joints 36 et les presse-étoupes 35 de sortie des rotors 1 et les roulements 43 des paliers 7 des projections de liquide, notamment celles qui proviendraient de la trémie supérieure.The
L'invention est applicable également à tout autre type de broyeur que celui représenté sur les figures. En particulier, le nombre des rotors peut être différent, et le broyeur peut comporter un rotor ou plus de deux rotors.The invention is also applicable to any other type of mill than that shown in the figures. In particular, the number of rotors can be different, and the mill can include one rotor or more than two rotors.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9401775 | 1994-02-11 | ||
FR9401775A FR2716125B1 (en) | 1994-02-11 | 1994-02-11 | Waste crusher with external bearings linked to the body. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0667187A1 true EP0667187A1 (en) | 1995-08-16 |
EP0667187B1 EP0667187B1 (en) | 1999-05-12 |
Family
ID=9460147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95200300A Expired - Lifetime EP0667187B1 (en) | 1994-02-11 | 1995-02-07 | Waste shredder with external bearings connected to the housing |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0667187B1 (en) |
AT (1) | ATE179910T1 (en) |
DE (1) | DE69509568T2 (en) |
ES (1) | ES2132512T3 (en) |
FR (1) | FR2716125B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2737979A1 (en) * | 1995-08-25 | 1997-02-28 | Kuczer Didier | DEVICE FOR SNAILING BODIES OF DIFFERENT NATURE |
EP0997197A1 (en) | 1998-10-30 | 2000-05-03 | Didier Kuczer | Knife for a shredding device with rotary shears adapted to be mounted on a polygonal shaft and shredder including such a knife |
WO2000035585A1 (en) * | 1998-12-15 | 2000-06-22 | Mmd Design & Consultancy Limited | A mineral breaker |
EP1099481A1 (en) | 1999-11-13 | 2001-05-16 | artech Recyclingtechnik GmbH | Comminuting machine |
CN104722551A (en) * | 2013-12-23 | 2015-06-24 | 环创(厦门)科技股份有限公司 | Garbage pulverizer |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4423424C2 (en) * | 1994-07-06 | 2002-03-14 | Svedala Lindemann Gmbh | Rotor shears for crushing particularly bulky waste |
DE102007040046B4 (en) * | 2007-08-24 | 2011-03-10 | Amni Maschinenbau Gmbh | Rotorshredder |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3240436A (en) * | 1963-07-02 | 1966-03-15 | Buell Engineering Company Inc | Apparatus for breaking up solids |
US3910510A (en) * | 1971-12-13 | 1975-10-07 | Victor Danberg | Solid waste chopper of rotary type |
US4099678A (en) * | 1977-05-31 | 1978-07-11 | Garbalizer Machinery Corporation | Shredder structure and improvements therein |
FR2387685A1 (en) * | 1977-04-22 | 1978-11-17 | Dresser Europe Sa | Rotary crusher for coal or minerals - has drum with rotating pointed picks working together with stationary gear system |
EP0125830A1 (en) * | 1983-05-10 | 1984-11-21 | The Uniroyal Goodrich Tire Company | Scrap tire cutting apparatus |
-
1994
- 1994-02-11 FR FR9401775A patent/FR2716125B1/en not_active Expired - Fee Related
-
1995
- 1995-02-07 EP EP95200300A patent/EP0667187B1/en not_active Expired - Lifetime
- 1995-02-07 DE DE69509568T patent/DE69509568T2/en not_active Expired - Lifetime
- 1995-02-07 AT AT95200300T patent/ATE179910T1/en not_active IP Right Cessation
- 1995-02-07 ES ES95200300T patent/ES2132512T3/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3240436A (en) * | 1963-07-02 | 1966-03-15 | Buell Engineering Company Inc | Apparatus for breaking up solids |
US3910510A (en) * | 1971-12-13 | 1975-10-07 | Victor Danberg | Solid waste chopper of rotary type |
FR2387685A1 (en) * | 1977-04-22 | 1978-11-17 | Dresser Europe Sa | Rotary crusher for coal or minerals - has drum with rotating pointed picks working together with stationary gear system |
US4099678A (en) * | 1977-05-31 | 1978-07-11 | Garbalizer Machinery Corporation | Shredder structure and improvements therein |
EP0125830A1 (en) * | 1983-05-10 | 1984-11-21 | The Uniroyal Goodrich Tire Company | Scrap tire cutting apparatus |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2737979A1 (en) * | 1995-08-25 | 1997-02-28 | Kuczer Didier | DEVICE FOR SNAILING BODIES OF DIFFERENT NATURE |
EP0760257A1 (en) * | 1995-08-25 | 1997-03-05 | Didier Kuczer | Shearing device for different kinds of bodies |
EP0997197A1 (en) | 1998-10-30 | 2000-05-03 | Didier Kuczer | Knife for a shredding device with rotary shears adapted to be mounted on a polygonal shaft and shredder including such a knife |
FR2785203A1 (en) | 1998-10-30 | 2000-05-05 | Didier Kuczer | KNIFE FOR SHREDDERS WITH ROTARY SHEARS SUITABLE TO BE THREADED ON A SHAFT WITH CROSS-SECTION OF REGULAR POLYGONAL SHAPE AND SHREDDER WITH SUCH A KNIFE |
WO2000035585A1 (en) * | 1998-12-15 | 2000-06-22 | Mmd Design & Consultancy Limited | A mineral breaker |
EP1099481A1 (en) | 1999-11-13 | 2001-05-16 | artech Recyclingtechnik GmbH | Comminuting machine |
CN104722551A (en) * | 2013-12-23 | 2015-06-24 | 环创(厦门)科技股份有限公司 | Garbage pulverizer |
Also Published As
Publication number | Publication date |
---|---|
DE69509568T2 (en) | 2000-01-13 |
ATE179910T1 (en) | 1999-05-15 |
FR2716125B1 (en) | 1996-04-26 |
ES2132512T3 (en) | 1999-08-16 |
DE69509568D1 (en) | 1999-06-17 |
EP0667187B1 (en) | 1999-05-12 |
FR2716125A1 (en) | 1995-08-18 |
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