EP2531301A1 - Protection block for the rotor of a material grinder - Google Patents
Protection block for the rotor of a material grinderInfo
- Publication number
- EP2531301A1 EP2531301A1 EP11708528A EP11708528A EP2531301A1 EP 2531301 A1 EP2531301 A1 EP 2531301A1 EP 11708528 A EP11708528 A EP 11708528A EP 11708528 A EP11708528 A EP 11708528A EP 2531301 A1 EP2531301 A1 EP 2531301A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- protection block
- fastening means
- block according
- fixing means
- shielding plate
- 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- Withdrawn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
- 230000004224 protection Effects 0.000 title claims abstract description 51
- 239000000463 material Substances 0.000 title claims abstract description 35
- 230000001681 protective effect Effects 0.000 claims description 21
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910001065 Chromium-vanadium steel Inorganic materials 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
- B02C13/04—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters hinged to the rotor; Hammer mills
-
- 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
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
- B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2210/00—Codes relating to different types of disintegrating devices
- B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like
Definitions
- the invention is in the field of machine tools of the type of industrial mills and particularly, without restriction, shredders scrap.
- the invention is in fact an improvement of the existing crushers which allows a significant decrease in the operating cost of said grinders by allowing, among other things, a substantial saving of the material in which the protections of the rotors of said crushers are manufactured. This improvement also allows easier handling of interchangeable parts constituting said protections of said rotors.
- the current grinders in particular the scrap crushers, consist of an internal main casing (1) inside which a rotor (2) driven by an electric motor rotates. Said rotor is provided on its periphery with hammers (3) adapted to cooperate with the edge of an anvil (4) integral with the housing.
- the casing has an inner wall covered with strong armor plates (5).
- the material to be ground (7) is injected into the housing by an opening (6) generally located near the rotor.
- the material to be ground is conveyed to the mill by a conveyor belt which feeds the mill continuously.
- the material to be ground is driven by the rotation of the rotor, crushed by crushing between the hammers of the rotor and an anvil.
- the crushed material fragments are then dragged tangentially on the wall of the casing to the portion opposite to the feed opening to be projected in the upper part of the casing which comprises a grid (8) disposed above the rotor and whose the size of the mesh is defined to determine the grain size of the product output: only the crushed material fragments having reached the desired particle size, defined by the mesh size of the grid, can be ejected.
- Said rotors generally consist of a series of disks (up to 13 for example) mounted in parallel on one or more axes. It is on this set that are fixed hammers (in number depending on the size of the rotor and mill, 12 to 26 in general) that will allow the grinding of materials. But the hammers do not cover the entire edge of the discs constituting the rotor. It is therefore necessary to provide a shielding to protect the discs and especially their slice. This is achieved by adding a set of shielding blocks constituting a shield (in the general sense of the term) made integral with the rotor and positioned on its periphery. Due to the presence of this shield, the disks and their wafer are no longer in contact with the material to be ground. It is therefore understood that the shielding of the rotor consists of several parts (the protective blocks or "caps”) constituting an assembly. In this text these parts are called “protection block” or "shield block”.
- the invention is directed to said protective or shielding blocks.
- said protective blocks are monoblock pieces, in any material compatible with the function, advantageously made of steel, integral with the rotor each comprising a shielding plate in the form of a rectangular metal plate, of thickness given, shaping an arc of a circle along its greatest length and whose radius is identical to the outer radius of the rotor discs that it must protect, and a means of fixing said shielding plate to said rotor discs, said fastening means being immovably attached to said armor plate.
- Each protection block shielding plate and fixing means
- the shielding plate wears during the grinding of the materials in the mill. It is therefore regularly necessary to replace them.
- the entire piece that is to say, complete protection block that must be replaced once the shielding portion worn. It is therefore clear that it is the whole of the protection block which is put to the rebus, while a large part of said part, mainly that constituting the means of attachment to the rotor, is intact.
- the invention seeks to make it more economical and easier to handle said protection blocks.
- protection blocks comprising two separate parts, a shielding plate and a means for fixing said shielding plate to said rotor discs, these two pieces being only when they are used.
- the shielding plate is the part that is in contact with the material to be ground, and is therefore damaged during the use of the mill.
- the fixing means meanwhile, not in contact with the material to be ground, is little damaged, and can be reused after being detached from the damaged armor plate, and can then be attached to a new plate of shielding.
- said protective blocks are no longer one-piece parts.
- the subject of the invention is a protective block for a material mill rotor, particularly scrap mill rotors, comprising
- a first shielding part or plate comprising itself, secured in a removable or irremovable manner on its internal face, a first fastening means, and
- said first fixing means is intended to secure said armor plate to the second fixing means which itself aims to secure said armor plate to the rotor of the mill.
- said shielding plate may be, in its orthogonal projection, of any form compatible with its function, preferably that of a parallelogram such as a rectangle, a square, a rhombus.
- the armor plate may be of rectangular shape.
- the shielding plate may have, in its lateral projection, any form compatible with its function, particularly compatible with the shape of the rotor that it must protect.
- the armor plate will have, along its greatest length, the shape of an arc whose radius is identical to the outer radius of the rotor discs that it must protect.
- the shielding plate may have any thickness compatible with its function. The skilled person will easily adapt said thickness to his needs.
- the shielding plate may have a thickness of between 10 mm and 100 mm, preferably between 40 mm and 60 mm.
- the first and second fixing means can take any form compatible with their functions.
- said first fixing means may be in four separate parts, positioned in pairs so as to be secured in a removable or irremovable manner to said shielding plate to one and the other ends of it.
- two of said parts may be positioned parallel to each other along the longitudinal axis of said armor plate, so that they can arrange between them a sufficient space for receiving said second fixing means.
- each of said pieces forming said first fixing means may have any form compatible with its function.
- these parts can take a form substantially equal to that of a right triangle whose hypotenuse may have a curvature allowing its adaptation to the curvature of the inner face of said armor plate.
- these parts may optionally also be of substantially square or rectangular shape, provided that one of their sides has a curvature allowing its adaptation to the curvature of the inner face of said armor plate.
- each of said parts will comprise at least one orifice intended to be positioned in line with an identical orifice formed in said second fixing means and intended to receive an axis capable of securing the armor plate assembly-second means of fixation.
- the shielding plate-first fixing means assembly may constitute one and the same molded part of a block or one and the same part, the parts forming the first fastening means. being weldable on the inner face of said shielding plate.
- the parts forming said first fastening means can be fixed to the armor plate reversibly by any appropriate means, such as screwing, bolting, interlocking or slide mounting.
- the parts forming said first fixing means can be fixed irreversibly to the shielding plate, for example by means of welds.
- the armor plate and the parts forming said first fastening means are molded (forged) in one piece, which has the advantage of ensuring better resistance of the assembly to shocks produced during grinding. .
- the parts forming the first fixing means may be of any material compatible with their function, advantageously these parts will be in the same material as the armor plate.
- each of the parts of the first fixing means and the second fixing means may have an identical thickness corresponding to one third of the dimension of the space between two rotor disks.
- the second fixing means can take any form compatible with its function, provided that on the one hand it can be secured to said armor plate and on the other hand it can be secured to said rotor.
- the second fastening means will have in lateral view substantially in the shape of a diamond having in its widest part a first orifice piercing perpendicularly through it, said first orifice to receive an axis for securing said second fastening means. said disks of said mill rotor.
- said second fixing means must also be able to be secured to said shielding plate, it may furthermore comprise at each of these ends at least a second orifice piercing it perpendicularly from one side to the other, said second orifice having to receive an axis allowing the securing of said second fastening means to said shielding plate through said second fastening means.
- the skilled person will easily adapt the diameter of each of the orifices as a function of the diameter of the axes he wishes to use, the diameter of said axes to be sufficient to have sufficient strength.
- said second fixing means may be configured in thickness so that it can, on the one hand, be inserted between two disks of the rotor of the mill, its thickness, at least over a part of its length, in front of therefore be compatible with the dimensions of the interior space separating two rotor discs so that the lateral play of said fastening means between the two discs is minimal.
- said second fastening means must be able to receive, at each of its ends, the first fastening means to secure the armor plate to the second fastening means.
- said second fixing means at each of its ends said second fixing means will have a thickness at most equal to the space provided between the two parts forming the first fastening means.
- said second fixing means may have in its middle part, around said first orifice, a thickness substantially equal to the distance between two rotor disks between which it must come to be inserted and at these ends a thickness less so as to provide sufficient space between itself and the rotor discs so that said first fastening means can also be inserted between the two discs of the rotor.
- the thickness of said second fastening means at these ends may be one-third of the size of the space between two disks.
- each of the parts of the first fixing means and the second fixing means may have an identical thickness corresponding to one-third of the dimension of the space between two disks of said rotor between which they must fit.
- said first fixing means and said second fixing means may have a configuration that is the opposite of that of the first embodiment.
- the shielding plate may bear only a first fixing means formed of two parts, advantageously identical to those forming the first fixing means described in the first embodiment of the invention, each of which may be positioned at one end of the inner face of the shielding plate and the second fixing means may be formed by the combination of two parts, advantageously identical to those forming the second fixing means described in the first embodiment of the invention, so that positioned parallel to each other these two parts will provide a space between it to receive the parts forming the first fixing means.
- the two parts forming said second fixing means can be joined in their middle by a spacer fixing the dimension of the space between said two parts.
- This spacer may or may not be immovably attached to said two parts. It is also possible to envisage that the spacer is secured in an irremovable manner only one of the two parts.
- the second fastening means may be formed of a single single piece, or two separate pieces or three separate pieces.
- the second fixing means when the spacer is immovably secured to the two parts then the second fixing means may be a single molded piece or welded, and when the spacer is immovably attached to one of the two pieces then this set can be a single piece molded or welded.
- the parts forming the first and the second fixing means may be the same as those forming the first and the second fastening means of the first embodiment of the invention, it being understood that when there were two pairs of pieces to form the first fastening means in the first embodiment, there are only two pieces in the second embodiment of the invention and when there was only a piece for forming the second fastening means in the first embodiment, there are two in the second embodiment of the invention.
- the shielding plate through the first fastening means and the second fixing means can be secured by means of axes positioned perpendicularly to said first and second means in the orifices arranged for this purpose in said fixing means.
- the shielding plate assembly and second fixing means may be secured to the rotor by means of an axis traversing perpendicularly said parts forming said second fixing means in the orifice formed in this respect at its center.
- the armor plate and the second fixing means can be secured by means of a simple set of tenon / mortise.
- the shielding plate can have on its inner face at least one mortise, of any possible shape, and for the second fastening means to have on its edge coming into contact with the shielding plate at least one complementary profile tenon. profile of the said mortise.
- said mortise and said pin will be configured at the time of manufacture of said parts, for example during the molding thereof.
- the assembly of the shielding plate and the second fixing means can be done by simply sliding one piece on the other so that the pin takes its place in the mortise.
- said shielding plate, the first and the second fixing means may be made of any material suitable for the purpose for which they are intended. According to the invention, they can be made in the same material or in different materials. Advantageously, these parts will be in the same material.
- said shielding plate, the first and second fixing means may be made of manganese or chromium-vanadium steel or HARDOX® type abrasion-resistant welded steel (Swedish Steel, Sweden), CREUSABO® or equivalent (ARCELOR, France).
- the orifices intended to receive the pins can take any known form. They can be circular, square, rectangular, triangular, or elliptical. Preferably, the orifices have a circular shape. According to the invention, the dimensions of said orifices are defined by the size of the pins or pins that will be used. The skilled person can easily adapt said dimensions to the object he wishes to obtain.
- the subject of the invention is also a protection shield for a material mill rotor, preferably for scrap mills, comprising at least one protection block according to the invention.
- the invention also relates to the use of at least one protection block according to the invention for making a protective shield for a material mill rotor, preferably scrap mills.
- the invention can be adapted to any existing mill rotor they can have varying dimensions. It is therefore understood that depending on the rotor dimensions, the number of protection blocks may be variable and said blocks can take all the desired dimensions. Those skilled in the art will easily adapt the number and dimensions of said blocks to the dimensions of the rotor that it uses.
- the invention also relates to a material crusher, particularly a scrap mill, comprising a protective armor of the rotor comprising at least one protection block according to the invention.
- the invention relates to a material crusher, particularly a scrap crusher, comprising an internal main casing, at least one rotor, hammers on said rotor, at least one anvil, a closed crankcase and covered with armor plates. resistant, a feed opening, an ejection grid disposed above the rotor and an ejection door, said rotor having protective blocks as described above.
- the grinder of material according to the invention is a grinder as described in the European patent application EP2012924.
- - Figure (1) shows a cross section of a conventional scrap mill
- - Figure (2) shows a three-dimensional view of a first embodiment of a protection block according to the invention, with 2a an exploded view of the two parts forming the block;
- FIG. (3) shows a three-dimensional view of a second embodiment of a protection block according to the invention, with 3a an exploded view of the two parts forming the block;
- FIG. 4 shows a side view of a third embodiment of a protection block according to the invention.
- FIG. (1) shows a cross-section of a conventional scrap mill, in which are represented the inner main casing 1, the rotor 2, the hammers 3, the anvil 4, the closed bottom of the casing and covered with plates of 5, the supply opening 6, the material to be ground 7, the grid 8 disposed above the rotor and the ejection door 9.
- FIG. 2 represents a three-dimensional view of a protection block according to the first embodiment of the invention with an exploded view of said protection block in 2a and a view of the same mounted protection block in FIG. 2.1 shows said protective block, with 2.2 the shielding plate, 2.3 the parts forming the first fixing means, and 2.4 the second fixing means.
- the axis (or pin) which through the orifices 2.6 will allow the reversible connection of the armor plate and the second fixing means.
- the orifice 2.7 which allows using a pin or pin not shown to secure the protective block to the rotor of the mill.
- the parts of the first fastening means 2.3 are irreversibly secured to the shielding plate 2.2 by means of welds 2.8.
- FIG. 3 represents a three-dimensional view of a protection block according to the second embodiment of the invention with an exploded view of said protection block and a view of the same protective block mounted on it.
- This FIG. 3 shows the protective block, with the shielding plate 3.2, the parts forming the first fastening means 3.3, and the parts forming the second fastening means.
- the axis (or pin) which through the orifices 3.6 will allow solidarity reversible armor plate and the second attachment means.
- the orifice 3.7 which allows using a pin or pin not shown to secure the protective block to the rotor of the mill.
- the parts of the first fastening means 3.3 are irreversibly secured to the shielding plate 3.2 by means of welds 3.8.
- FIG. 4 shows a side view of a protection block according to the third embodiment of the invention with 4.1 said protective block, 4.2 the shielding plate and 4.4 the second fixing means.
- the armor plate carries at each of its ends a tenon 4.10 and that the second fixing means carries, at the right of said tenons, a mortise 4.11 to the dimensions of said tenons.
- the orifice 4.7 which allows using a pin or pin not shown to secure the protective block to the rotor of the mill.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention is an improvement to existing grinders, that enables a significant reduction of the cost of using said grinders, enabling, inter alia, a substantial saving in the quantity of the product used to produce the protections of the rotors of said grinders. The invention relates to a protection block for a rotor of a material grinder, especially rotors for scrap grinders, comprising a first part or shielding plate (2.2) that, in turn, comprises a first fixing means (2.3) that is rigidly connected to its inner face, in a removable or non-removable manner, and a second part, independent from the first part, forming a second fixing means (2.4).
Description
L'invention se place dans le domaine des machines-outils du type des broyeurs industriels et particulièrement, sans restriction aucune, des broyeurs de ferrailles. L'invention est en fait un perfectionnement des broyeurs existant qui permet une baisse significative du coût d'exploitation desdits broyeurs en permettant entre autre une économie substantielle de la matière dans laquelle les protections des rotors desdits broyeurs sont fabriquées. Ce perfectionnement permet en outre une manipulation plus aisée des pièces interchangeables constituant lesdites protections desdits rotors. The invention is in the field of machine tools of the type of industrial mills and particularly, without restriction, shredders scrap. The invention is in fact an improvement of the existing crushers which allows a significant decrease in the operating cost of said grinders by allowing, among other things, a substantial saving of the material in which the protections of the rotors of said crushers are manufactured. This improvement also allows easier handling of interchangeable parts constituting said protections of said rotors.
De manière générale les broyeurs actuels (voir la figure 1), particulièrement les broyeurs de ferrailles, sont constitués d'un carter principal interne (1) à l'intérieur duquel tourne un rotor (2) mu par un moteur électrique. Ledit rotor est muni sur sa périphérie de marteaux (3) adaptés à coopérer avec l'arête d'une enclume (4) solidaire du carter. Le carter a une paroi interne recouverte de plaques de blindage résistantes (5). In general, the current grinders (see FIG. 1), in particular the scrap crushers, consist of an internal main casing (1) inside which a rotor (2) driven by an electric motor rotates. Said rotor is provided on its periphery with hammers (3) adapted to cooperate with the edge of an anvil (4) integral with the housing. The casing has an inner wall covered with strong armor plates (5).
La matière à broyer (7) est injectée dans le carter par une ouverture (6) généralement située à proximité du rotor. En général la matière à broyer est convoyée jusqu'au broyeur par un tapis roulant qui alimente le broyeur de façon continue. The material to be ground (7) is injected into the housing by an opening (6) generally located near the rotor. In general, the material to be ground is conveyed to the mill by a conveyor belt which feeds the mill continuously.
La matière à broyer est entraînée par la rotation du rotor, concassée par écrasement entre les marteaux du rotor et une enclume. Les fragments de matière broyés sont alors traînés tangentiellement sur la paroi du carter jusqu'à la partie opposée à l'ouverture d'alimentation pour être projetés dans la partie supérieure du carter qui comporte une grille (8) disposée au dessus du rotor et dont la dimension des mailles est définie pour déterminer la granulométrie du produit en sortie : seuls les fragments de matière broyés ayant atteint la granulométrie désirée, définie par les dimensions des mailles de la grille, peuvent être éjectés. The material to be ground is driven by the rotation of the rotor, crushed by crushing between the hammers of the rotor and an anvil. The crushed material fragments are then dragged tangentially on the wall of the casing to the portion opposite to the feed opening to be projected in the upper part of the casing which comprises a grid (8) disposed above the rotor and whose the size of the mesh is defined to determine the grain size of the product output: only the crushed material fragments having reached the desired particle size, defined by the mesh size of the grid, can be ejected.
Lesdits rotors sont généralement constitués d'une série de disques (pouvant aller jusqu'à 13 par exemple) montés parallèlement sur un ou plusieurs axes. C'est sur cet ensemble que viennent se fixer les marteaux (en nombre variable suivant la taille du rotor et du broyeur, 12 à 26 en général) qui vont permettre le broyage des matières. Mais les marteaux ne couvrent pas la tranche complète des disques constituant le rotor. Il est donc nécessaire de prévoir un
blindage afin de protéger les disques et particulièrement leur tranche. Cela est réalisé par l'ajout d'un ensemble de blocs de protection constituant un blindage (au sens général du terme) rendus solidaires du rotor et positionnés sur sa périphérie. Du fait de la présence de ce blindage, les disques et leur tranche ne sont plus en contact avec la matière à broyer. On comprend donc que le blindage du rotor est constitué de plusieurs pièces (les blocs de protection ou "caps") constituant un ensemble. Dans le présent texte ces pièces sont dénommées "bloc de protection" ou "bloc de blindage". Said rotors generally consist of a series of disks (up to 13 for example) mounted in parallel on one or more axes. It is on this set that are fixed hammers (in number depending on the size of the rotor and mill, 12 to 26 in general) that will allow the grinding of materials. But the hammers do not cover the entire edge of the discs constituting the rotor. It is therefore necessary to provide a shielding to protect the discs and especially their slice. This is achieved by adding a set of shielding blocks constituting a shield (in the general sense of the term) made integral with the rotor and positioned on its periphery. Due to the presence of this shield, the disks and their wafer are no longer in contact with the material to be ground. It is therefore understood that the shielding of the rotor consists of several parts (the protective blocks or "caps") constituting an assembly. In this text these parts are called "protection block" or "shield block".
L'invention s'adresse audits blocs de protection ou de blindage. The invention is directed to said protective or shielding blocks.
Jusqu'à présent lesdits blocs de protection sont des pièces monoblocs, en tout matériau compatible avec la fonction, avantageusement en acier, montées solidaires du rotor comprenant chacune une plaque de blindage se présentant sous la forme d'une plaque métallique rectangulaire, d'épaisseur donnée, mise en forme d'arc de cercle selon sa plus grande longueur et dont le rayon est identique au rayon extérieur des disques du rotor qu'elle doit protéger, et un moyen de fixation de ladite plaque de blindage auxdits disques du rotor, ledit moyen de fixation étant solidaire de manière inamovible de ladite plaque de blindage. Chaque bloc de protection (plaque de blindage et moyen de fixation) peut être une pièce unique moulée ou deux pièces liées entre elles par soudure. Until now said protective blocks are monoblock pieces, in any material compatible with the function, advantageously made of steel, integral with the rotor each comprising a shielding plate in the form of a rectangular metal plate, of thickness given, shaping an arc of a circle along its greatest length and whose radius is identical to the outer radius of the rotor discs that it must protect, and a means of fixing said shielding plate to said rotor discs, said fastening means being immovably attached to said armor plate. Each protection block (shielding plate and fixing means) may be a single molded piece or two pieces bonded together by welding.
Ces pièces monoblocs sont lourdes, ce qui rend leur manipulation peu aisée, et sont coûteuses puisqu'elles mettent en jeu beaucoup de matière première pour leur fabrication. A titre d'exemple pour un broyeur dont le rotor a un diamètre de 1350 mm, une telle pièce peut avoir un poids allant de 80 à 120 Kg voire parfois beaucoup plus. These one-piece parts are heavy, which makes their handling difficult, and are expensive since they involve a lot of raw material for their manufacture. As an example for a mill whose rotor has a diameter of 1350 mm, such a piece can have a weight ranging from 80 to 120 kg or sometimes much more.
De plus du fait du mode de fonctionnement des broyeurs dans lesquels ces pièces sont utilisées, la plaque de blindage s'use lors du broyage des matériaux dans le broyeur. Il est donc régulièrement nécessaire de les remplacer. Outre le poids, du fait de leur conception monobloc c'est donc l'ensemble de la pièce monobloc, c'est-à-dire bloc de protection complet qu'il faut remplacer une fois la partie blindage usée. On comprend donc que c'est l'ensemble du bloc de protection qui est mis au rébus, alors qu'une grande partie de ladite pièce, principalement celle constituant le moyen de fixation au rotor, est
intacte. Ainsi à chaque changement du blindage, une grande quantité de matière première se voit donc rejetée sans réelle nécessité. Moreover, because of the operating mode of the mills in which these parts are used, the shielding plate wears during the grinding of the materials in the mill. It is therefore regularly necessary to replace them. In addition to the weight, because of their monobloc design is therefore the entire piece, that is to say, complete protection block that must be replaced once the shielding portion worn. It is therefore clear that it is the whole of the protection block which is put to the rebus, while a large part of said part, mainly that constituting the means of attachment to the rotor, is intact. Thus with each change of the shielding, a large quantity of raw material is therefore rejected without any real need.
Le document US 5 169 077 A (Stelk John C(US)) divulgue des extrémités amovibles pour les marteaux en bout de chaque bras d'un broyeur à marteaux. Il décrit un bloc de protection constitué d'une partie faisant office de blindage et d'un moyen de fixation, ledit moyen de fixation étant solidaire dudit blindage. Dans cette configuration, le remplacement du blindage nécessite de fait le remplacement du moyen de fixation qui lui est solidaire alors que celui-ci n'est pas usé. US 5,169,077 A (Stelk John C (US)) discloses removable ends for hammers at the end of each arm of a hammer mill. It describes a protection block consisting of a shielding part and a fixing means, said fixing means being integral with said shield. In this configuration, the replacement of the shielding in fact requires the replacement of the attachment means which is integral with it while it is not worn.
L'invention s'attache à rendre plus économique et plus facile la manipulation desdits blocs de protection. Après de longs essais la demanderesse a constaté qu'il est possible d'utiliser des blocs de protection comprenant deux pièces distinctes, une plaque de blindage et un moyen de fixation de ladite plaque de blindage auxdits disques du rotor, ces 2 pièces n'étant solidarisés qu'au moment de leur utilisation. La plaque de blindage est la pièce qui est en contact avec la matière à broyer, et elle est de ce fait endommagée au fil de l'utilisation du broyeur. Le moyen de fixation, quant à lui, n'étant pas au contact de la matière à broyer, est peu abimé, et peut être réutilisé après avoir été désolidarisé de la plaque de blindage endommagée, et peut alors être fixé à une nouvelle plaque de blindage. Ainsi selon l'invention lesdits blocs de protection ne sont plus des pièces monoblocs. The invention seeks to make it more economical and easier to handle said protection blocks. After long tests the Applicant has found that it is possible to use protection blocks comprising two separate parts, a shielding plate and a means for fixing said shielding plate to said rotor discs, these two pieces being only when they are used. The shielding plate is the part that is in contact with the material to be ground, and is therefore damaged during the use of the mill. The fixing means, meanwhile, not in contact with the material to be ground, is little damaged, and can be reused after being detached from the damaged armor plate, and can then be attached to a new plate of shielding. Thus according to the invention said protective blocks are no longer one-piece parts.
La Demanderesse a en outre pu constater que la résistance desdits blocs de protection n'est pas altérée si lesdits blocs se trouvent être non plus sous la forme de pièces monoblocs mais constituées en deux parties distinctes solidarisées au moment de leur utilisation. The Applicant has also found that the resistance of said protection blocks is not impaired if said blocks are found either in the form of single-piece parts but made of two separate parts secured at the time of their use.
Ainsi l'invention a pour objet un bloc de protection pour rotor de broyeur de matériau, particulièrement les rotors de broyeurs de ferrailles, comportant Thus, the subject of the invention is a protective block for a material mill rotor, particularly scrap mill rotors, comprising
- une première pièce ou plaque de blindage comportant elle-même, solidarisé de manière amovible ou inamovible sur sa face interne un premier moyen de fixation, et a first shielding part or plate comprising itself, secured in a removable or irremovable manner on its internal face, a first fastening means, and
- une seconde pièce, indépendante de la première pièce, formant un second moyen de fixation.
Selon l'invention, ledit premier moyen de fixation vise à solidariser ladite plaque de blindage au second moyen de fixation qui lui-même vise à solidariser ladite plaque de blindage au rotor du broyeur. a second part, independent of the first part, forming a second fixing means. According to the invention, said first fixing means is intended to secure said armor plate to the second fixing means which itself aims to secure said armor plate to the rotor of the mill.
Selon l'invention, ladite plaque de blindage peut être, dans sa projection orthogonale, de toute forme compatible avec sa fonction, préférentiellement celle d'un parallélogramme comme par exemple un rectangle, un carré, un losange. Avantageusement selon l'invention, la plaque de blindage pourra être de forme rectangulaire. According to the invention, said shielding plate may be, in its orthogonal projection, of any form compatible with its function, preferably that of a parallelogram such as a rectangle, a square, a rhombus. Advantageously according to the invention, the armor plate may be of rectangular shape.
Selon encore l'invention la plaque de blindage pourra avoir, dans sa projection latérale, toute forme compatible avec sa fonction, particulièrement compatible avec la forme du rotor qu'elle doit protéger. Avantageusement la plaque de blindage aura selon sa plus grande longueur la forme d'un arc de cercle dont le rayon est identique au rayon extérieur des disques du rotor qu'elle doit protéger. According to the invention the shielding plate may have, in its lateral projection, any form compatible with its function, particularly compatible with the shape of the rotor that it must protect. Advantageously, the armor plate will have, along its greatest length, the shape of an arc whose radius is identical to the outer radius of the rotor discs that it must protect.
Selon encore l'invention la plaque de blindage pourra avoir toute épaisseur compatible avec sa fonction. L'Homme du métier saura sans difficulté adapter ladite épaisseur à ses besoins. Avantageusement selon l'invention la plaque de blindage pourra avoir une épaisseur comprise entre 10 mm et 100 mm, préférentiellement entre 40 mm et 60 mm. According to the invention, the shielding plate may have any thickness compatible with its function. The skilled person will easily adapt said thickness to his needs. Advantageously according to the invention, the shielding plate may have a thickness of between 10 mm and 100 mm, preferably between 40 mm and 60 mm.
Selon l'invention, les premier et second moyens de fixation peuvent prendre toutes les formes compatibles avec leurs fonctions. According to the invention, the first and second fixing means can take any form compatible with their functions.
Ainsi, selon un premier mode de réalisation de l'invention, ledit premier moyen de fixation pourra être en quatre pièces distinctes, positionnées par paires afin d'être solidaires de manière amovible ou inamovible de ladite plaque de blindage à l'une et l'autre des extrémités de celle-ci. Thus, according to a first embodiment of the invention, said first fixing means may be in four separate parts, positioned in pairs so as to be secured in a removable or irremovable manner to said shielding plate to one and the other ends of it.
Selon l'invention, à chacune des extrémités de ladite plaque de blindage, deux desdites pièces pourront être positionnées parallèlement l'une à l'autre selon l'axe longitudinal de ladite plaque de blindage, de telle sorte qu'elles pourront ménager entre elles un espace suffisant destiné à recevoir ledit second moyen de fixation. According to the invention, at each end of said shielding plate, two of said parts may be positioned parallel to each other along the longitudinal axis of said armor plate, so that they can arrange between them a sufficient space for receiving said second fixing means.
Selon ce mode de réalisation de l'invention, chacune desdites pièces formant ledit premier moyen de fixation pourra avoir toute forme compatible avec sa fonction. Avantageusement en vue latérale ces pièces pourront prendre une
forme sensiblement égale à celle d'un triangle rectangle dont l'hypoténuse pourra présenter une courbure permettant son adaptation à la courbure de la face interne de ladite plaque de blindage. Cependant ces pièces pourront éventuellement également être de forme sensiblement carrée ou rectangulaire, sous réserve que l'un de leurs côtés présente une courbure permettant son adaptation à la courbure de la face interne de ladite plaque de blindage. According to this embodiment of the invention, each of said pieces forming said first fixing means may have any form compatible with its function. Advantageously in a side view these parts can take a form substantially equal to that of a right triangle whose hypotenuse may have a curvature allowing its adaptation to the curvature of the inner face of said armor plate. However, these parts may optionally also be of substantially square or rectangular shape, provided that one of their sides has a curvature allowing its adaptation to the curvature of the inner face of said armor plate.
Selon l'invention encore chacune desdites pièces comportera au moins un orifice destiné à se positionner au droit d'un orifice identique ménagé dans ledit second moyen de fixation et destiné à recevoir un axe apte à solidariser l'ensemble plaque de blindage-second moyen de fixation. According to the invention, each of said parts will comprise at least one orifice intended to be positioned in line with an identical orifice formed in said second fixing means and intended to receive an axis capable of securing the armor plate assembly-second means of fixation.
Selon encore ce mode de réalisation de l'invention, l'ensemble plaque de blindage-premier moyen de fixation peut constituer une seule et même pièce moulée d'un bloc ou encore une seule et même pièce, les pièces formant le premier moyen de fixation pouvant être soudées sur la face interne de ladite plaque de blindage. According to this embodiment of the invention, the shielding plate-first fixing means assembly may constitute one and the same molded part of a block or one and the same part, the parts forming the first fastening means. being weldable on the inner face of said shielding plate.
Selon une variante de l'invention les pièces formant ledit premier moyen de fixation peuvent être fixés sur la plaque de blindage de manière réversible par tout moyen approprié, comme par exemple un vissage, un boulonnage, un emboîtement ou encore un montage sur glissière. According to a variant of the invention the parts forming said first fastening means can be fixed to the armor plate reversibly by any appropriate means, such as screwing, bolting, interlocking or slide mounting.
Selon une autre variante de l'invention, les pièces formant ledit premier moyen de fixation peuvent être fixées sur la plaque de blindage de manière irréversible par exemple au moyen de soudures. According to another variant of the invention, the parts forming said first fixing means can be fixed irreversibly to the shielding plate, for example by means of welds.
De manière encore plus préférée, la plaque de blindage et les pièces formant ledit premier moyen de fixation sont moulées (forgées) en une seule pièce, ce qui a pour avantage d'assurer une meilleure résistance de l'ensemble aux chocs produits pendant le broyage. Even more preferably, the armor plate and the parts forming said first fastening means are molded (forged) in one piece, which has the advantage of ensuring better resistance of the assembly to shocks produced during grinding. .
Selon encore ce mode de réalisation les pièces formant le premier moyen de fixation peuvent être en tout matériau compatible avec leur fonction, avantageusement ces pièces seront dans le même matériau que la plaque de blindage. According to this embodiment, the parts forming the first fixing means may be of any material compatible with their function, advantageously these parts will be in the same material as the armor plate.
De même ces pièces peuvent avoir toute épaisseur compatible avec leur fonction. Cependant, dans la mesure où une fois solidarisées au second moyen de fixation l'ensemble constitué (à chaque extrémité de la plaque de blindage)
par les deux pièces du premier moyen de fixation et la pièce du second moyen de fixation doit pouvoir s'insérer dans l'espace ménagé entre deux disques du rotor du broyeur, on comprend aisément que l'Homme du métier ajustera l'épaisseur tant des pièces du premier moyen de fixation que celle du second moyen de fixation afin que l'ensemble ait une épaisseur au plus égale à la dimension dudit espace, tout en conservant à chacune des pièces une épaisseur compatible avec la résistance qu'elle doit présenter. Avantageusement selon l'invention chacune des pièces du premier moyen de fixation et le second moyen de fixation pourront avoir une épaisseur identique correspondant au tiers de la dimension de l'espace compris entre deux disques du rotor. Similarly, these parts can have any thickness compatible with their function. However, to the extent that once secured to the second fastening means the assembly formed (at each end of the armor plate) by the two parts of the first fixing means and the part of the second fixing means must be able to fit into the space between two discs of the rotor of the mill, it is easy to understand that the skilled person will adjust the thickness of both parts of the first fastening means that the second fastening means so that the assembly has a thickness at most equal to the size of said space, while maintaining each of the parts a thickness consistent with the resistance it must have. Advantageously according to the invention each of the parts of the first fixing means and the second fixing means may have an identical thickness corresponding to one third of the dimension of the space between two rotor disks.
Selon ce premier mode de réalisation de l'invention, le second moyen de fixation pourra prendre toute les formes compatibles avec sa fonction, sous réserve que d'une part il puisse être solidarisé avec ladite plaque de blindage et d'autre part il puisse être solidarisé avec ledit rotor. According to this first embodiment of the invention, the second fixing means can take any form compatible with its function, provided that on the one hand it can be secured to said armor plate and on the other hand it can be secured to said rotor.
Avantageusement le second moyen de fixation aura en vue latérale sensiblement la forme d'un losange comportant en sa partie la plus large un premier orifice le transperçant perpendiculairement de part en part, ledit premier orifice devant recevoir un axe permettant la solidarisation dudit second moyen de fixation auxdits disques dudit rotor du broyeur. Advantageously, the second fastening means will have in lateral view substantially in the shape of a diamond having in its widest part a first orifice piercing perpendicularly through it, said first orifice to receive an axis for securing said second fastening means. said disks of said mill rotor.
Dans la mesure où ledit second moyen de fixation doit également pouvoir être solidarisé à ladite plaque de blindage, il pourra en outre comprendre à chacune de ces extrémités au moins un second orifice le transperçant perpendiculairement de part en part, ledit second orifice devant recevoir un axe permettant la solidarisation dudit second moyen de fixation à ladite plaque de blindage au travers dudit second moyen de fixation. Inasmuch as said second fixing means must also be able to be secured to said shielding plate, it may furthermore comprise at each of these ends at least a second orifice piercing it perpendicularly from one side to the other, said second orifice having to receive an axis allowing the securing of said second fastening means to said shielding plate through said second fastening means.
Selon l'invention l'Homme du métier saura sans difficulté adapter le diamètre de chacun des orifices en fonction du diamètre des axes qu'il souhaite utiliser, le diamètre desdits axes devant être suffisant pour présenter une résistance suffisante. According to the invention the skilled person will easily adapt the diameter of each of the orifices as a function of the diameter of the axes he wishes to use, the diameter of said axes to be sufficient to have sufficient strength.
Selon l'invention, ledit second moyen de fixation pourra être configuré en épaisseur de telle sorte qu'il puisse d'une part s'insérer entre deux disques du rotor du broyeur, son épaisseur, au moins sur une partie de sa longueur, devant donc être compatible avec les dimensions de l'espace intérieur séparant deux
disques du rotor afin que le jeu latéral dudit moyen de fixation entre les deux disques soit minimal. Mais dans le même temps ledit second moyen de fixation doit pouvoir recevoir, à chacune de ses extrémités le premier moyen de fixation afin de solidariser la plaque de blindage au second moyen de fixation. Ainsi, dans cette forme de réalisation de l'invention, à chacune de ses extrémités ledit second moyen de fixation aura une épaisseur au plus égale à l'espace ménagé entre les deux pièces formant le premier moyen de fixation. According to the invention, said second fixing means may be configured in thickness so that it can, on the one hand, be inserted between two disks of the rotor of the mill, its thickness, at least over a part of its length, in front of therefore be compatible with the dimensions of the interior space separating two rotor discs so that the lateral play of said fastening means between the two discs is minimal. But at the same time said second fastening means must be able to receive, at each of its ends, the first fastening means to secure the armor plate to the second fastening means. Thus, in this embodiment of the invention, at each of its ends said second fixing means will have a thickness at most equal to the space provided between the two parts forming the first fastening means.
Ainsi selon l'invention ledit second moyen de fixation pourra avoir en sa partie médiane, autour dudit premier orifice, une épaisseur sensiblement égale à la distance séparant deux disques du rotor entre lesquels il doit venir s'intercaler et au niveau de ces extrémités une épaisseur moindre afin de ménager entre lui- même et les disques du rotor des espaces suffisants pour que ledit premier moyen de fixation puisse également s'insérer entre les deux disques du rotor. Avantageusement selon l'invention l'épaisseur dudit second moyen de fixation à ces extrémités pourra correspondre au tiers de la dimension de l'espace situé entre deux disques. Thus according to the invention said second fixing means may have in its middle part, around said first orifice, a thickness substantially equal to the distance between two rotor disks between which it must come to be inserted and at these ends a thickness less so as to provide sufficient space between itself and the rotor discs so that said first fastening means can also be inserted between the two discs of the rotor. Advantageously according to the invention the thickness of said second fastening means at these ends may be one-third of the size of the space between two disks.
Encore plus avantageusement selon cette première forme de réalisation de l'invention chacune des pièces du premier moyen de fixation et le second moyen de fixation pourront avoir une épaisseur identique correspondant au tiers de la dimension de l'espace compris entre deux disques dudit rotor entre lesquels ils doivent s'insérer. Even more advantageously according to this first embodiment of the invention each of the parts of the first fixing means and the second fixing means may have an identical thickness corresponding to one-third of the dimension of the space between two disks of said rotor between which they must fit.
Selon un second mode de réalisation de l'invention, ledit premier moyen de fixation et ledit second moyen de fixation pourront présenter une configuration inverse de celle du premier mode de réalisation. According to a second embodiment of the invention, said first fixing means and said second fixing means may have a configuration that is the opposite of that of the first embodiment.
Ainsi à l'inverse du premier mode de réalisation dans lequel ladite plaque de blindage porte sur sa face interne une double paire de pièces pour former le premier moyen de fixation et le second moyen de fixation est en une seul pièce, dans le second mode de réalisation de l'invention, la plaque de blindage pourra ne porter qu'un premier moyen de fixation formé de deux pièces, avantageusement identiques à celles formant le premier moyen de fixation décrit dans le premier mode de réalisation de l'invention, chacune pouvant être positionnée à l'une des extrémités de la face interne de la plaque de blindage et le second moyen de fixation pourra être formé par l'association de deux pièces,
avantageusement identiques à celles formant le second moyen de fixation décrit dans le premier mode de réalisation de l'invention, de telle sorte que positionnées parallèlement l'une à l'autre ces deux pièces ménageront entre elle un espace destiné à recevoir les pièces formant le premier moyen de fixation. Thus, in contrast to the first embodiment in which said shielding plate bears on its internal face a pair of parts to form the first fastening means and the second fastening means is in one piece, in the second embodiment of the invention. embodiment of the invention, the shielding plate may bear only a first fixing means formed of two parts, advantageously identical to those forming the first fixing means described in the first embodiment of the invention, each of which may be positioned at one end of the inner face of the shielding plate and the second fixing means may be formed by the combination of two parts, advantageously identical to those forming the second fixing means described in the first embodiment of the invention, so that positioned parallel to each other these two parts will provide a space between it to receive the parts forming the first fixing means.
Avantageusement, sans que cela ne soit obligatoire, les deux pièces formant ledit second moyen de fixation peuvent être jointes en leur milieu par une entretoise fixant la dimension de l'espace entre lesdites deux pièces. Cette entretoise pourra être ou ne pas être solidaire de manière inamovible desdites deux pièces. Il est d'ailleurs possible d'envisager que l'entretoise ne soit solidaire de manière inamovible que d'une seule des deux pièces. Ainsi le second moyen de fixation peut être formé d'une seule pièce unique monobloc, ou de deux pièces distinctes ou de trois pièces distinctes. Advantageously, without this being mandatory, the two parts forming said second fixing means can be joined in their middle by a spacer fixing the dimension of the space between said two parts. This spacer may or may not be immovably attached to said two parts. It is also possible to envisage that the spacer is secured in an irremovable manner only one of the two parts. Thus the second fastening means may be formed of a single single piece, or two separate pieces or three separate pieces.
Selon ce second mode de réalisation, quand l'entretoise est solidaire de manière inamovible des deux pièces alors le second moyen de fixation peut être une seule pièce monobloc moulée ou soudée, et quand l'entretoise est solidaire de manière inamovible de l'une des deux pièces alors cet ensemble peut être une seule pièce monobloc moulée ou soudée. According to this second embodiment, when the spacer is immovably secured to the two parts then the second fixing means may be a single molded piece or welded, and when the spacer is immovably attached to one of the two pieces then this set can be a single piece molded or welded.
Il est aisément compréhensible que dans ce second mode de réalisation les pièces formant le premier et le second moyen de fixation peuvent être les mêmes que celles formant le premier et le second moyen de fixation du premier mode de réalisation de l'invention, étant entendu que quand il y avait deux paires de pièces pour former le premier moyen de fixation dans le premier mode de réalisation, il n'y a que deux pièces dans le second mode de réalisation de l'invention et que quand il n'y avait qu'une pièce pour former le second moyen de fixation dans le premier mode de réalisation, il y en a deux dans le second mode de réalisation de l'invention. It is easily understood that in this second embodiment the parts forming the first and the second fixing means may be the same as those forming the first and the second fastening means of the first embodiment of the invention, it being understood that when there were two pairs of pieces to form the first fastening means in the first embodiment, there are only two pieces in the second embodiment of the invention and when there was only a piece for forming the second fastening means in the first embodiment, there are two in the second embodiment of the invention.
On comprend aisément que dans ce mode de réalisation lors de l'assemblage de la plaque de blindage et du second moyen de fixation les pièces formant le premier moyen de fixation viendront s'intercaler entre les deux pièces formant le second moyen de fixation. C'est pour cela que selon ce second mode de réalisation l'épaisseur de la pièce formant le premier mode de réalisation sera au plus égale à la dimension de l'espace ménagé entre les deux pièces du second moyen de fixation.
Selon toujours ce second mode de réalisation de l'invention la plaque de blindage au travers du premier moyen de fixation et le second moyen de fixation pourront être rendus solidaires par l'intermédiaire d'axes positionnés perpendiculairement auxdits premier et second moyen dans les orifices ménagés à cet effet dans lesdits moyens de fixation. De même l'ensemble plaque de blindage et second moyen de fixation pourront être rendus solidaires du rotor au moyen d'un axe traversant perpendiculairement lesdites pièces formant ledit second moyen de fixation dans l'orifice ménagé à cet égard en son centre. It is easily understood that in this embodiment during the assembly of the shielding plate and the second fastening means the parts forming the first fastening means will be interposed between the two parts forming the second fastening means. For this reason, according to this second embodiment, the thickness of the part forming the first embodiment will be at most equal to the dimension of the space provided between the two parts of the second fixing means. According to always this second embodiment of the invention the shielding plate through the first fastening means and the second fixing means can be secured by means of axes positioned perpendicularly to said first and second means in the orifices arranged for this purpose in said fixing means. Similarly, the shielding plate assembly and second fixing means may be secured to the rotor by means of an axis traversing perpendicularly said parts forming said second fixing means in the orifice formed in this respect at its center.
Selon encore un autre mode de réalisation de l'invention, la plaque de blindage et le second moyen de fixation peuvent être solidarisés au moyen d'un simple jeu de tenon/mortaise. Ainsi il est possible que la plaque de blindage comporte sur sa face interne au moins une mortaise, de toute forme possible, et que le second moyen de fixation comporte sur son bord venant au contact de la plaque de blindage au moins un tenon de profil complémentaire du profil de la dite mortaise. Avantageusement ladite mortaise et ledit tenon seront configurés au moment de la fabrication desdites pièces, par exemple lors du moulage de celles-ci. Dans ce troisième mode de réalisation, l'assemblage de la plaque de blindage et du second moyen de fixation pourra se faire par simple glissement d'une pièce sur l'autre afin que le tenon prenne sa place dans la mortaise. According to yet another embodiment of the invention, the armor plate and the second fixing means can be secured by means of a simple set of tenon / mortise. Thus it is possible for the shielding plate to have on its inner face at least one mortise, of any possible shape, and for the second fastening means to have on its edge coming into contact with the shielding plate at least one complementary profile tenon. profile of the said mortise. Advantageously said mortise and said pin will be configured at the time of manufacture of said parts, for example during the molding thereof. In this third embodiment, the assembly of the shielding plate and the second fixing means can be done by simply sliding one piece on the other so that the pin takes its place in the mortise.
Quel que soit le mode de réalisation de l'invention, ladite plaque de blindage, le premier et le second moyen de fixation peuvent être réalisés en tout matériau approprié à l'usage pour lequel ils sont destinés. Selon l'invention, ils peuvent être réalisés dans le même matériau ou dans des matériaux différents. Avantageusement ces pièces seront dans le même matériau. Whatever the embodiment of the invention, said shielding plate, the first and the second fixing means may be made of any material suitable for the purpose for which they are intended. According to the invention, they can be made in the same material or in different materials. Advantageously, these parts will be in the same material.
Selon l'invention, ladite plaque de blindage, le premier et le second moyen de fixation peuvent être réalisés en acier moulé au manganèse ou en acier au chrome-vanadium ou en acier mécano soudé antiabrasion du type HARDOX® (Swedish Steel, Suède), CREUSABO® ou équivalents (ARCELOR, France). According to the invention, said shielding plate, the first and second fixing means may be made of manganese or chromium-vanadium steel or HARDOX® type abrasion-resistant welded steel (Swedish Steel, Sweden), CREUSABO® or equivalent (ARCELOR, France).
Selon l'invention, les orifices destinés à recevoir les goupilles peuvent prendre toute forme connue. Ils peuvent être de forme circulaire, carrée, rectangulaire, triangulaire, ou elliptique. Préférentiellement les orifices ont une forme circulaire.
Selon l'invention, les dimensions desdits orifices sont définies par la taille des axes ou goupilles qui seront utilisées. L'Homme du métier sait adapter sans difficulté lesdites dimensions à l'objet qu'il souhaite obtenir. According to the invention, the orifices intended to receive the pins can take any known form. They can be circular, square, rectangular, triangular, or elliptical. Preferably, the orifices have a circular shape. According to the invention, the dimensions of said orifices are defined by the size of the pins or pins that will be used. The skilled person can easily adapt said dimensions to the object he wishes to obtain.
L'invention a aussi pour objet un blindage de protection de rotor de broyeur de matière, préférentiellement de broyeurs de ferrailles, comportant au moins un bloc de protection selon l'invention. The subject of the invention is also a protection shield for a material mill rotor, preferably for scrap mills, comprising at least one protection block according to the invention.
L'invention a aussi pour objet l'utilisation d'au moins un bloc de protection selon l'invention pour la confection d'un blindage de protection pour rotor de broyeur de matériau, préférentiellement de broyeurs de ferrailles. The invention also relates to the use of at least one protection block according to the invention for making a protective shield for a material mill rotor, preferably scrap mills.
Bien entendu, l'invention pouvant s'adapter à tout rotor de broyeur existant ceux-ci peuvent présenter des dimensions variables. On comprend donc qu'en fonction des dimensions du rotor, le nombre de blocs de protections pourra être variable et lesdits blocs pourront prendre toutes les dimensions voulues. L'homme du métier saura adapter sans difficulté le nombre et les dimensions desdits blocs aux dimensions du rotor qu'il utilise. Of course, the invention can be adapted to any existing mill rotor they can have varying dimensions. It is therefore understood that depending on the rotor dimensions, the number of protection blocks may be variable and said blocks can take all the desired dimensions. Those skilled in the art will easily adapt the number and dimensions of said blocks to the dimensions of the rotor that it uses.
L'invention a également pour objet un broyeur de matière, particulièrement un broyeur de ferraille, comprenant un blindage de protection du rotor comprenant au moins un bloc de protection selon l'invention. The invention also relates to a material crusher, particularly a scrap mill, comprising a protective armor of the rotor comprising at least one protection block according to the invention.
Particulièrement, l'invention concerne un broyeur de matière, particulièrement un broyeur de ferraille, comportant un carter principal interne, au moins un rotor, des marteaux sur ledit rotor, au moins une enclume, un fond de carter fermé et recouvert de plaques de blindage résistantes, une ouverture d'alimentation, une grille d'éjection disposée au dessus du rotor et une porte d'éjection, ledit rotor comportant des blocs de protection telles que décrits précédemment. In particular, the invention relates to a material crusher, particularly a scrap crusher, comprising an internal main casing, at least one rotor, hammers on said rotor, at least one anvil, a closed crankcase and covered with armor plates. resistant, a feed opening, an ejection grid disposed above the rotor and an ejection door, said rotor having protective blocks as described above.
Avantageusement le broyeur de matériau selon l'invention est un broyeur tel que décrit dans la demande de brevet européen EP2012924. Advantageously, the grinder of material according to the invention is a grinder as described in the European patent application EP2012924.
Des objets, caractéristiques et avantages de l'invention ressortent de la description qui suit, donnée à titre illustratif, non limitatif, en regard des dessins annexés dans lesquels : Objects, characteristics and advantages of the invention appear from the description which follows, given by way of nonlimiting illustration, with reference to the appended drawings, in which:
- la figure (1) représente une coupe transversale d'un broyeur de ferraille classique ;
- la figure (2) représente une vue en trois dimensions d'un premier mode de réalisation d'un bloc de protection conforme à l'invention, avec en 2a une vue éclatée des deux pièces formant le bloc ; - Figure (1) shows a cross section of a conventional scrap mill; - Figure (2) shows a three-dimensional view of a first embodiment of a protection block according to the invention, with 2a an exploded view of the two parts forming the block;
- la figure (3) représente une vue en trois dimensions d'un second mode de réalisation d'un bloc de protection conforme à l'invention, avec en 3a une vue éclatée des deux pièces formant le bloc ; - Figure (3) shows a three-dimensional view of a second embodiment of a protection block according to the invention, with 3a an exploded view of the two parts forming the block;
- la figure 4 représente une vue de profil d'un troisième mode de réalisation d'un bloc de protection conforme à l'invention. - Figure 4 shows a side view of a third embodiment of a protection block according to the invention.
La figure (1) représente une coupe transversale d'un broyeur de ferraille classique, dans laquelle sont représentés le carter principal interne 1 , le rotor 2, les marteaux 3, l'enclume 4, le fond fermé du carter et recouvert de plaques de blindage résistantes 5, l'ouverture d'alimentation 6, la matière à broyer 7, la grille 8 disposée au dessus du rotor et la porte d'éjection 9. FIG. (1) shows a cross-section of a conventional scrap mill, in which are represented the inner main casing 1, the rotor 2, the hammers 3, the anvil 4, the closed bottom of the casing and covered with plates of 5, the supply opening 6, the material to be ground 7, the grid 8 disposed above the rotor and the ejection door 9.
La figure 2 représente une vue en trois dimensions d'un bloc de protection conforme au premier mode de réalisation de l'invention avec en 2a une vue éclatée dudit bloc de protection et en 2 b une vue du même bloc de protection monté. On voit représenté dans cette figure en 2.1 ledit bloc de protection, avec en 2.2 la plaque de blindage, en 2.3 les pièces formant le premier moyen de fixation, et en 2.4 le second moyen de fixation. On note en 2.5, l'axe (ou goupille) qui en traversant les orifices 2.6 permettra la solidarisation réversible de la plaque de blindage et du second moyen de fixation. On note encore l'orifice 2.7 qui permet à l'aide d'un axe ou goupille non représenté de solidariser le bloc de protection au rotor du broyeur. Dans ce mode de réalisation, les pièces du premier moyen de fixation 2.3 sont solidarisées de manière irréversible à la plaque de blindage 2.2 au moyen de soudures 2.8. On note enfin la différence d'épaisseur entre le centre du second moyen de fixation et ses extrémités. FIG. 2 represents a three-dimensional view of a protection block according to the first embodiment of the invention with an exploded view of said protection block in 2a and a view of the same mounted protection block in FIG. 2.1 shows said protective block, with 2.2 the shielding plate, 2.3 the parts forming the first fixing means, and 2.4 the second fixing means. In 2.5, the axis (or pin) which through the orifices 2.6 will allow the reversible connection of the armor plate and the second fixing means. There is still the orifice 2.7 which allows using a pin or pin not shown to secure the protective block to the rotor of the mill. In this embodiment, the parts of the first fastening means 2.3 are irreversibly secured to the shielding plate 2.2 by means of welds 2.8. Finally, note the difference in thickness between the center of the second fixing means and its ends.
La figure 3 représente une vue en trois dimensions d'un bloc de protection conforme au second mode de réalisation de l'invention avec en 3a une vue éclatée dudit bloc de protection et en 3 b une vue du même bloc de protection, monté. On voit représenté dans cette figure en 3.1 ledit bloc de protection, avec en 3.2 la plaque de blindage, en 3.3 les pièces formant le premier moyen de fixation, et en 3.4 les pièces formant le second moyen de fixation. On note en 3.5, l'axe (ou goupille) qui en traversant les orifices 3.6 permettra la solidarisation
réversible de la plaque de blindage et du second moyen de fixation. On note encore l'orifice 3.7 qui permet à l'aide d'un axe ou goupille non représenté de solidariser le bloc de protection au rotor du broyeur. Dans ce mode de réalisation, les pièces du premier moyen de fixation 3.3 sont solidarisées de manière irréversible à la plaque de blindage 3.2 au moyen de soudures 3.8. On note enfin la présence entre les 2 pièces 3.4 formant le second moyen de fixation d'une entretoise 3.9. FIG. 3 represents a three-dimensional view of a protection block according to the second embodiment of the invention with an exploded view of said protection block and a view of the same protective block mounted on it. This FIG. 3 shows the protective block, with the shielding plate 3.2, the parts forming the first fastening means 3.3, and the parts forming the second fastening means. We note in 3.5, the axis (or pin) which through the orifices 3.6 will allow solidarity reversible armor plate and the second attachment means. We still note the orifice 3.7 which allows using a pin or pin not shown to secure the protective block to the rotor of the mill. In this embodiment, the parts of the first fastening means 3.3 are irreversibly secured to the shielding plate 3.2 by means of welds 3.8. Finally, note the presence between the two parts 3.4 forming the second means of fixing a spacer 3.9.
La figure 4 représente une vue latérale d'un bloc de protection conforme au troisième mode de réalisation de l'invention avec en 4.1 ledit bloc de protection, en 4.2 la plaque de blindage et en 4.4 le second moyen de fixation. On note que dans cette configuration, la plaque de blindage porte à chacune de ses extrémités un tenon 4.10 et que le second moyen de fixation porte au droit desdits tenon une mortaise 4.11 aux dimensions desdits tenons. On note enfin la présence de l'orifice 4.7 qui permet à l'aide d'un axe ou goupille non représenté de solidariser le bloc de protection au rotor du broyeur.
FIG. 4 shows a side view of a protection block according to the third embodiment of the invention with 4.1 said protective block, 4.2 the shielding plate and 4.4 the second fixing means. It should be noted that in this configuration, the armor plate carries at each of its ends a tenon 4.10 and that the second fixing means carries, at the right of said tenons, a mortise 4.11 to the dimensions of said tenons. Finally, note the presence of the orifice 4.7 which allows using a pin or pin not shown to secure the protective block to the rotor of the mill.
Claims
1. ) Bloc de protection pour rotor de broyeur de matériau, particulièrement les rotors de broyeurs de ferrailles, comportant 1.) Protection block for material mill rotor, particularly scrap mill rotors, comprising
- une première pièce ou plaque de blindage (2.2) comportant elle-même, solidarisé de manière amovible ou inamovible sur sa face interne un premier moyen de fixation (2.3), et a first shielding part or plate (2.2) comprising itself, secured in a removable or irremovable manner on its internal face, a first fastening means (2.3), and
- une seconde pièce, indépendante de la première pièce, formant un second moyen de fixation (2.4). a second part, independent of the first part, forming a second fixing means (2.4).
2. ) Bloc de protection selon la revendication 1 , caractérisé en ce que ladite plaque de blindage (2.2) est, dans sa projection orthogonale, en forme de parallélogramme comme par exemple un rectangle, un carré, un losange. 2.) Protection block according to claim 1, characterized in that said shielding plate (2.2) is, in its orthogonal projection, in the form of a parallelogram such as for example a rectangle, a square, a rhombus.
3. ) Bloc de protection selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que ledit premier moyen de fixation (2.3) est en quatre pièces distinctes, positionnées par paires afin d'être solidaires de manière amovible ou inamovible de ladite plaque de blindage (2.2) à l'une et l'autre des extrémités de celle-ci. 3.) Protective block according to any one of claims 1 or 2, characterized in that said first fixing means (2.3) is in four separate parts, positioned in pairs to be secured in a detachable or irremovable manner of said shielding plate (2.2) at one and the other end thereof.
4. ) Bloc de protection selon la revendication 3, caractérisé en ce que à chaque extrémité de ladite plaque de blindage (2.2) lesdites 2 pièces formant le premier moyen de fixation (2.3) sont positionnées parallèlement l'une à l'autre selon l'axe longitudinal de ladite plaque de blindage (2.2), de telle sorte qu'elles ménagent entre elles un espace suffisant destiné à recevoir ledit second moyen de fixation (2.4). 4.) Protection block according to claim 3, characterized in that at each end of said shielding plate (2.2) said two parts forming the first fastening means (2.3) are positioned parallel to each other according to the invention. longitudinal axis of said shielding plate (2.2), such that they provide between them sufficient space for receiving said second fastening means (2.4).
5. ) Bloc de protection selon l'une quelconque des revendications 3 ou 4, caractérisé en ce que chacune desdites pièces formant ledit premier moyen de fixation (2.3) a sensiblement la forme d'un triangle rectangle, d'un carré ou d'un rectangle dont l'un des côtés présente une courbure permettant son adaptation à la courbure de la face interne de ladite plaque de blindage (2.2). 5.) Protection block according to any one of claims 3 or 4, characterized in that each of said pieces forming said first fastening means (2.3) has substantially the shape of a right triangle, a square or of a rectangle whose one side has a curvature allowing its adaptation to the curvature of the inner face of said shielding plate (2.2).
6. ) Bloc de protection selon l'une quelconque des revendications 3 à 5, caractérisé en ce que chacune desdites pièces formant ledit premier moyen de fixation (2.3) comporte au moins un orifice destiné à se positionner au droit d'un orifice identique ménagé dans ledit second moyen de fixation (2.4) et destiné à recevoir un axe apte à solidariser l'ensemble plaque de blindage-second moyen de fixation. 6.) Protection block according to any one of claims 3 to 5, characterized in that each of said parts forming said first fixing means (2.3) comprises at least one orifice intended to be positioned at the right of an identical orifice formed in said second fixing means (2.4) and intended to receive an axis adapted to secure the shield plate assembly-second fastening means.
7. ) Bloc de protection selon l'une quelconque des revendications 3 à 6, caractérisé en ce que l'ensemble plaque de blindage-premier moyen de fixation constitue une seule et même pièce moulée d'un bloc ou encore une seule et même pièce, les pièces formant le premier moyen de fixation (2.3) étant soudées sur la face interne de ladite plaque de blindage (2.2). 7.) Protection block according to any one of claims 3 to 6, characterized in that the shielding plate assembly-first fastening means is a single molded part of a block or one and the same piece , the parts forming the first fastening means (2.3) being welded to the inner face of said shielding plate (2.2).
8. ) Bloc de protection selon l'une quelconque des revendications 3 à 7, caractérisé en ce que le second moyen de fixation (2.4) a en vue latérale sensiblement la forme d'un losange comportant en sa partie la plus large un premier orifice le transperçant perpendiculairement de part en part, ledit premier orifice devant recevoir un axe permettant la solidarisation dudit second moyen de fixation (2.4) auxdits disques dudit rotor du broyeur. 8.) Protection block according to any one of claims 3 to 7, characterized in that the second fastening means (2.4) has a lateral view substantially in the shape of a diamond having in its widest part a first orifice the piercing perpendicularly through, said first orifice to receive an axis for securing said second fastening means (2.4) to said disks of said rotor mill.
9.) Bloc de protection selon l'une quelconque des revendications 3 à 8, caractérisé en ce que le second moyen de fixation (2.4) comprend à chacune de ces extrémités au moins un second orifice le transperçant perpendiculairement de part en part, ledit second orifice devant recevoir un axe permettant la solidarisation dudit second moyen de fixation (2.4) à ladite plaque de blindage (2.2) au travers dudit second moyen de fixation9.) Protective block according to any one of claims 3 to 8, characterized in that the second fastening means (2.4) comprises at each of these ends at least a second orifice piercing perpendicularly from one side to the other, said second orifice to receive an axis for securing said second fastening means (2.4) to said shielding plate (2.2) through said second fastening means
(2.4). (2.4).
10.) Bloc de protection selon l'une quelconque des revendications 3 à 9, caractérisé en ce que ledit second moyen de fixation (2.4) a en sa partie médiane, autour dudit premier orifice, une épaisseur sensiblement égale à la distance séparant deux disques du rotor entre lesquels il doit venir s'intercaler et au niveau de ces extrémités une épaisseur moindre afin de ménager entre lui-même et les disques dudit rotor des espaces suffisants pour que ledit premier moyen de fixation (2.3) puisse également s'insérer entre les deux disques du rotor. 10.) Protection block according to any one of claims 3 to 9, characterized in that said second fastening means (2.4) has in its middle part, around said first orifice, a thickness substantially equal to the distance between two disks. rotor between which it must come to intercalate and at these ends a smaller thickness to provide between itself and the discs of said rotor sufficient space for said first fastening means (2.3) can also be inserted between the two rotor disks.
11.) Bloc de protection selon la revendication 10, caractérisé en ce que l'épaisseur dudit second moyen de fixation (2.4) à ces extrémités correspond au tiers de la dimension de l'espace situé entre deux disques dudit rotor. 11.) Protection block according to claim 10, characterized in that the thickness of said second fastening means (2.4) at these ends corresponds to one third of the dimension of the space between two discs of said rotor.
12. ) Bloc de protection selon l'une quelconque des revendications 3 à 1 1 , caractérisé en ce que chacune des pièces du premier moyen de fixation12.) Protection block according to any one of claims 3 to 1 1, characterized in that each of the parts of the first fixing means
(2.3) et le second moyen de fixation (2.4) ont une épaisseur identique correspondant au tiers de la dimension de l'espace compris entre deux disques dudit rotor entre lesquels ils doivent s'insérer. (2.3) and the second fixing means (2.4) have an identical thickness corresponding to one third of the dimension of the space between two disks of said rotor between which they must be inserted.
13. ) Bloc de protection selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la plaque de blindage (2.2) porte un premier moyen de fixation (2.3) formé de deux pièces, chacune positionnée à l'une des extrémités de la face interne de ladite plaque de blindage (2.2). 13.) Protection block according to any one of claims 1 or 2, characterized in that the shielding plate (2.2) carries a first fixing means (2.3) formed of two parts, each positioned at one of the ends. of the inner face of said shielding plate (2.2).
14.) Bloc de protection selon la revendication 13, caractérisé en ce que chacune desdites pièces formant ledit premier moyen de fixation (2.3) a sensiblement la forme d'un triangle rectangle, d'un carré ou d'un rectangle, un des côtés de ladite pièce présentant une courbure permettant son adaptation à la courbure de la face interne de ladite plaque de blindage (2.2). 14.) Protection block according to claim 13, characterized in that each of said pieces forming said first fixing means (2.3) has substantially the shape of a right triangle, a square or a rectangle, one of the sides said piece having a curvature allowing its adaptation to the curvature of the inner face of said shielding plate (2.2).
15.) Bloc de protection selon la revendication 14, caractérisé en ce que chacune desdites pièces formant ledit premier moyen de fixation (2.3) est positionnée à l'une des extrémités de la face interne de la plaque de blindage (2.2). 15.) Protection block according to claim 14, characterized in that each of said parts forming said first fixing means (2.3) is positioned at one end of the inner face of the shielding plate (2.2).
16.) Bloc de protection selon l'une quelconque des revendications 13 à 15, caractérisé en ce que chacune desdites pièces formant ledit premier moyen de fixation (2.3) comporte au moins un orifice destiné à se positionner au droit d'un orifice identique ménagé dans ledit second moyen de fixation16.) Protection block according to any one of claims 13 to 15, characterized in that each of said parts forming said first fixing means (2.3) comprises at least one orifice intended to be positioned in line with an identical orifice arranged in said second fastening means
(2.4) et destiné à recevoir un axe apte à solidariser l'ensemble plaque de blindage-second moyen de fixation. (2.4) and intended to receive an axis adapted to secure the shield plate assembly-second fixing means.
17. ) Bloc de protection selon l'une quelconque des revendications 13 à 16, caractérisé en ce que l'ensemble plaque de blindage-premier moyen de fixation constitue une seule et même pièce moulée d'un bloc ou encore une seule et même pièce, les pièces formant le premier moyen de fixation (2.3) étant soudées sur la face interne de ladite plaque de blindage (2.2). 17.) Protection block according to any one of claims 13 to 16, characterized in that the shielding plate assembly-first fixing means is a single molded part of a block or one and the same piece , the parts forming the first fastening means (2.3) being welded to the inner face of said shielding plate (2.2).
18. ) Bloc de protection selon l'une quelconque des revendications 13 à 17, caractérisé en ce que le second moyen de fixation (2.4) est formé par l'association de deux pièces qui en vue latérale ont sensiblement la forme d'un losange comportant en sa partie la plus large un premier orifice le transperçant perpendiculairement de part en part, ledit premier orifice devant recevoir un axe permettant la solidarisation dudit second moyen de fixation (2.4) auxdits disques dudit rotor du broyeur. 18.) Protection block according to any one of claims 13 to 17, characterized in that the second fastening means (2.4) is formed by the combination of two parts which in lateral view have substantially the shape a rhombus comprising in its widest part a first orifice piercing perpendicularly through, said first orifice to receive an axis for securing said second fastening means (2.4) to said disks of said rotor mill.
19.) Bloc de protection selon la revendication 18, caractérisé en ce que les deux pièces qui forment le second moyen de fixation (2.4) sont positionnées parallèlement l'une à l'autre en ménageant entre elle un espace destiné à recevoir les pièces formant le premier moyen de fixation (2.3). 19.) Protection block according to claim 18, characterized in that the two parts which form the second fastening means (2.4) are positioned parallel to each other by providing between them a space for receiving the parts forming the first fastening means (2.3).
20. ) Bloc de protection selon la revendication 19, caractérisé en ce que les deux pièces formant ledit second moyen de fixation (2.4) sont jointes en leur milieu par une entretoise. 20.) Protection block according to claim 19, characterized in that the two parts forming said second fixing means (2.4) are joined in their middle by a spacer.
21. ) Bloc de protection selon la revendication 20, caractérisé en ce que le second moyen de fixation (2.4) est formé d'une seule pièce unique monobloc, ou de deux pièces distinctes ou de trois pièces distinctes. 21.) Protection block according to claim 20, characterized in that the second fixing means (2.4) is formed of a single piece single piece, or two separate pieces or three separate pieces.
22.) Bloc de protection selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la plaque de blindage (2.2) et le second moyen de fixation (2.4) sont solidarisés au moyen d'un simple jeu de tenon/mortaise.22.) Protection block according to any one of claims 1 or 2, characterized in that the shielding plate (2.2) and the second fixing means (2.4) are secured by means of a simple set of tenon / mortise .
23. ) Bloc de protection selon l'une quelconque des revendications 1 à 22, caractérisé en ce que ladite plaque de blindage (2.2), le premier (2.3) et le second moyen de fixation (2.4) sont réalisés dans le même matériau ou dans des matériaux différents, avantageusement dans le même matériau.23.) Protection block according to any one of claims 1 to 22, characterized in that said shielding plate (2.2), the first (2.3) and the second fixing means (2.4) are made of the same material or in different materials, advantageously in the same material.
24. ) Bloc de protection selon la revendication 23, caractérisé en ce que ledit matériau est choisi parmi l'acier moulé au manganèse ou l'acier au chrome- vanadium ou l'acier mécano soudé antiabrasion du type HARDOX® (Swedish Steel, Suède), CREUSABO® ou équivalents (ARCELOR,24.) Protective block according to claim 23, characterized in that said material is selected from manganese-molded steel or chromium-vanadium steel or welded steel anti-abrasion type HARDOX® (Swedish Steel, Sweden). ), CREUSABO® or equivalent (ARCELOR,
France). France).
25. ) Blindage de protection de rotor de broyeur de matière, préférentiellement de broyeurs de ferrailles, comportant au moins un bloc de protection tel que décrit à l'une quelconque des revendications 1 à 24. 25. Shielding protection of the material mill rotor, preferably scrap mills, comprising at least one protective block as described in any one of claims 1 to 24.
26.) Utilisation d'au moins un bloc de protection tel que décrit à l'une quelconque des revendications 1 à 24, pour la confection d'un blindage de protection pour rotor de broyeur de matériau, préférentiellement de broyeurs de ferrailles. Broyeur de matière, particulièrement broyeur de ferraille, comprenant un blindage de protection du rotor comprenant au moins un bloc de protection tel que décrit à l'une quelconque des revendications 1 à 24. 26.) Use of at least one protection block as described in any one of claims 1 to 24, for the production of a protective shield for a material mill rotor, preferably of scrap mills. A material crusher, particularly a scrap mill, comprising a rotor protective shield comprising at least one protection block as described in any one of claims 1 to 24.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1000458A FR2956042A1 (en) | 2010-02-05 | 2010-02-05 | BLOCK OF PROTECTION FOR ROTOR OF MILLER OF MATERIAL |
PCT/FR2011/000068 WO2011095710A1 (en) | 2010-02-05 | 2011-02-03 | Protection block for the rotor of a material grinder |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2531301A1 true EP2531301A1 (en) | 2012-12-12 |
Family
ID=42710674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11708528A Withdrawn EP2531301A1 (en) | 2010-02-05 | 2011-02-03 | Protection block for the rotor of a material grinder |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130037640A1 (en) |
EP (1) | EP2531301A1 (en) |
JP (1) | JP2013518709A (en) |
FR (1) | FR2956042A1 (en) |
WO (1) | WO2011095710A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104084259B (en) * | 2014-08-01 | 2017-02-22 | 张珂 | Roller and rolling device thereof |
JP6624874B2 (en) | 2015-10-02 | 2019-12-25 | クボタ環境サ−ビス株式会社 | Liner mounting structure for discharge section of vertical crusher |
WO2020057744A1 (en) * | 2018-09-20 | 2020-03-26 | Stahlwerke Bochum Gmbh | Protective cap and rotor equipped with same for a machine for comminuting metal objects or rock materials |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3524725A1 (en) * | 1985-07-11 | 1987-01-15 | Hans Ing Grad Lenz | Hammer mill with rotor components protected against wear by protective means |
FR2598099B1 (en) * | 1986-05-02 | 1988-12-02 | Copex | DEVICE FOR PROTECTING THE DISKS CONSTITUTING A HAMMER CRUSHER ROTOR |
US5169077A (en) * | 1988-11-02 | 1992-12-08 | Sivyer Steel Corporation | Replaceable end member for a hammermill spider |
DE3938725A1 (en) * | 1989-11-23 | 1991-05-29 | Lindemann Maschfab Gmbh | Rotor for stone crushing machine - has protective covers fitted to rotor discs between hammers |
FR2900068B1 (en) | 2006-04-25 | 2008-06-20 | Jean Luc Mossotti | EJECTION DOOR FOR SHREDDER |
-
2010
- 2010-02-05 FR FR1000458A patent/FR2956042A1/en not_active Withdrawn
-
2011
- 2011-02-03 EP EP11708528A patent/EP2531301A1/en not_active Withdrawn
- 2011-02-03 WO PCT/FR2011/000068 patent/WO2011095710A1/en active Application Filing
- 2011-02-03 US US13/577,376 patent/US20130037640A1/en not_active Abandoned
- 2011-02-03 JP JP2012551661A patent/JP2013518709A/en not_active Withdrawn
Non-Patent Citations (1)
Title |
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See references of WO2011095710A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20130037640A1 (en) | 2013-02-14 |
FR2956042A1 (en) | 2011-08-12 |
JP2013518709A (en) | 2013-05-23 |
WO2011095710A1 (en) | 2011-08-11 |
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