Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
  • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
  • B02C4/00—Crushing or disintegrating by roller mills
  • B02C4/28—Details
  • B02C4/30—Shape or construction of rollers
  • B02C4/305—Wear resistant rollers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
  • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
  • B02C4/00—Crushing or disintegrating by roller mills
  • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
  • B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers

Definitions

• the invention relates to a grinding roller and to a method and a device for processing a grinding roller.
• a grinding roller according to the invention comprises in a first aspect
• Roll basic body wherein the Walzengrundkorper in the region of the roll ends having a plurality of wear protection elements, which are arranged in the circumferential direction.
• Each of the wear protection elements stands with the
• the connecting element is designed such that it connects the wear protection element cohesively with the Walzengroundkorper.
• the arrangement of a connecting element which produces a material connection between the wear protection element and the Walzengroundkorper, for connection of the wear protection element with the Walzengroundkorper, offers the advantage of a simple and inexpensive assembly and disassembly of
• the connecting element is placed on the Roller body applied at the point at which the
• Wear protection element is to be arranged.
• the connecting element is
• the wear protection element is arranged on the liquid connecting element and then enters, for example under ambient conditions, a cohesive connection with the connecting element. It is also conceivable to heat the roller base body or or the wear protection element to be mounted on the roller base body in order to produce the integral connection.
• the at least one wear protection element has at least one
• Connection area which has a surface area of
• Wear protection element comprises.
• connection region of the wear protection element is in particular the area to understand, via the connecting element with the
• Roller body is in communication.
• the roller body is in communication.
• Connection region of the wear protection element a lateral, extending in the radial direction surface and / or in the circumferential direction of the
• Roll base body extending surface.
• the roller base body has at least one connection region, wherein the connection region of the wear protection element is connected to the connection region of the roller base body via the connection element.
• Connecting region of the roller body is a substantially flat surface.
• Roll main body and the wear protection element formed substantially flat.
• a substantially flat, in particular straight surface, for example, has no recesses, bends or protrusions.
• Connecting region of the roller body is after a first
• Embodiment formed by at least one recess formed by at least one recess.
• a recess in at least one of the connecting regions enlarges the area for the connection of the roller base body with the wear protection elements, on which the connecting element is arranged. Furthermore, it is possible that
• connecting element within the recess. This allows a simpler application of the connecting element, wherein it is also possible to perform the application automated.
• Connecting region of the roll base is also according to another
• Wave-shaped means, for example, a plurality of waves or only one wave in the connection region.
• a wave-shaped formation of the connection areas also provides a larger surface area of the connection areas, whereby the
• the wear protection element has at least two projections which in each case interact with a recess in a connecting region of the roller base body.
• Connection for example a tongue and groove connection
• Wear protection element is arranged a recess which cooperates with the projection of the roller body.
• the wear protection elements protrude, for example, in the radial direction and / or in the axial direction from the surface of the roller base body. A protrusion of the wear protection elements in the radial direction of the
• Roller body ensures better wear protection of the
• Roller body surface in particular, such an arrangement allows the formation of an autogenous wear protection between adjacent wear protection elements in the inner region of the grinding roller surface.
• the roller base body has at least one circumferential recess, wherein in each of the at least one recess a plurality of wear protection elements are arranged in the circumferential direction.
• the recess is advantageously on lateral
• connection regions of the roll base body preferably comprise the recess of the roll base body.
• a connection area of the roll base body is formed, for example, from an area of the roll base body which extends in the circumferential direction or in the radial direction.
• At least one of the recesses extends according to another
• Embodiment over the entire circumference of the grinding roller. This simplifies the production of the recess in the roller body and the arrangement of the wear protection elements therein.
• the connecting element comprises a solder, in particular a metal alloy, which at least partially contains elements of silver and / or copper and / or cadmium and / or zinc.
• solder in particular a metal alloy, which at least partially contains elements of silver and / or copper and / or cadmium and / or zinc.
• the connecting element comprises an adhesive, in particular a one- or two-component adhesive.
• An adhesive is ashed or embrittled, for example, by supplying heat, so that a
• At least one support element that the wear protection element is supported at least in the radial direction.
• the invention further comprises a method for processing a grinding roller, which comprises a roller body, to which a plurality of wear protection elements can be arranged in the region of the roller ends, the method comprising: rotatably mounting the roller body on a holding device, providing at least one wear protection element; Providing a connecting element for connecting the at least one wear protection element to the roller base body and
• the wear protection elements are preferably arranged in the circumferential direction of the roller body.
• the at least one wear protection element has a connection region, which comprises a surface region of the wear protection element, wherein the roller main body has at least one connection region, wherein the connection element between the connection region of the
• connection region of the wear protection element and / or the connection region of the roller base body may be, for example, an approximately straight surface or wavy. Furthermore, the connection region of the wear protection element and / or the connection region of the roller base body may be, for example, an approximately straight surface or wavy. Furthermore, the connection region of the wear protection element and / or the connection region of the roller base body may be, for example, an approximately straight surface or wavy. Furthermore, the connection region of the wear protection element and / or the connection region of the roller base body may be, for example, an approximately straight surface or wavy. Furthermore, the
• Connecting region may be formed by at least one recess or be formed such that the connecting portion of the wear protection element comprises a projection and the connecting portion of the roller body comprises a recess, wherein the projection of the connecting portion of the
• Wear protection element cooperates with the recess of the connecting portion of the roller body.
• Curing can be done, for example, under ambient conditions, but it is also possible, a curing of the connecting element via a
• connection between the at least one wear protection element and the roller body is achieved by heating the connecting element.
• the connecting element comprises a solder, in particular a metal alloy, or an adhesive.
• an adhesive which is present in liquid form without additional heat influence, wherein the adhesive cures for connection of the wear protection element with the roller body, for example, under ambient conditions and liquefied by subsequent heating, ashed or embrittled.
• the heating is in another aspect by means of at least one flame, a laser, a soldering torch, hot air, ultrasound, a
• Electron beam, an arc or induction heating generated offer the advantage of being a local
• the step of heating further comprises heating to a temperature of at least 300 ° C, more preferably at least 550 ° C, most preferably more than 650 ° C. At such a temperature, a cohesive connection between the connecting element and the roller base body and the wear protection element is ensured.
• the roller body is rotatably mounted or mounted according to a further embodiment on a holding device, whereby a simplified implementation of the heating of the connecting element, which is arranged in particular over the entire circumference of the roller body is made possible.
• a holding device is, for example, a rotatable plate, in particular a plate, on which the roller base body rests for processing.
• Such a holding device allows a simple arrangement of the connecting elements and the wear protection elements on the roller body, wherein the wear protection elements with the at least one connecting element on the roller body, for example in its final position, are braced and, for example, by heating the
• the invention further comprises a device for processing a grinding roller having a roller base body and at least one
• Wear protection element which is designed such that it in the
• Circumferential direction of the roll main body can be arranged, wherein each of
• Connecting element is integrally connected, wherein the device comprises a holding device for rotatably supporting the grinding roller and a
• Heating device for heating the connecting element has.
• the device may further comprise means for applying the
• the device comprises a
• Cooling device for cooling the connecting element.
• the device further comprises according to a further embodiment means for arranging the at least one connecting element and / or the at least a wear protection element on the roller base body.
• the means is for example designed such that it holds the connecting element and / or the wear protection element at the position on the Walzengrundgroper on which the connecting element and / or the wear protection element is to be attached.
• Such a means allows attachment of the connecting elements and / or the wear protection elements on the roller base body, before in a next step, the connecting element is heated and a cohesive connection between the wear protection element and the roller base body is produced.
• the agent also prevents slipping of the
• the processing device can furthermore be movable relative to the roller body. Furthermore, it is possible, the heating device and the
• Machining device are arranged to cool or heat only at least one of the connecting elements.
• Roller body movable.
• the heating and cooling of the connecting element can via a
• Controlling means are controlled / regulated, so that the heating or cooling is time-dependent, and thus optimal heating or cooling is achieved.
• Fig. 1 shows a schematic representation of a roll mill.
• Fig. 2 shows a schematic representation of a plan view of a grinding roller in the region of a roll end.
• FIG 3 shows a schematic representation of a cross section of an end region of a grinding roller according to a first exemplary embodiment.
• Figs. 4 to 12 and Figs. 15 and 16 are schematic views showing a cross section of an end portion of a grinding roll according to others
• Fig. 13 shows a cross section of an apparatus for processing a grinding roller.
• Fig. 14 shows a plan view of the apparatus for processing a grinding roller
• FIG. 13 with a processing device.
• a roll mill 10 is shown schematically.
• the roller mill 10 consists of two grinding rollers 12, 14, shown schematically as circles, which have the same diameter and are arranged side by side. Between the grinding rollers 12, 14 is a grinding gap, which is adjustable, for example, in size.
• the grinding rollers 12, 14 rotate in the direction of rotation 18, 20 in opposite directions to each other, wherein the material to be ground in the direction of fall 16 passes through the grinding gap and is ground.
• FIG. 2 shows an end region of a grinding roller 24, which has a roller base body 22, are attached to the wear protection elements 26.
• the Wear protection elements 26 are mounted in an inner surface area of the grinding roller which does not comprise the end of the grinding roller.
• FIG. 2 shows ten wear protection elements 26, which are spaced apart from one another in two rows and are arranged next to one another, having a circular cross section. It is also conceivable that the
• Wear protection elements across the surface of the grinding roller in size, the number, the cross-sectional shape and the arrangement vary from each other, for example, to compensate for local differences in wear during operation of the grinding roller 24.
• the grinding roller 24 at the end of the grinding roller 24 mounted wear protection elements 28, which for example have a rectangular cross-section and are arranged in series side by side so that they over the
• Circumference of the grinding roller 24 form a ring.
• FIG. 2 shown cross-sectional shape differ. A spaced-apart arrangement of the wear protection elements 28 is possible.
• Fig. 2 by way of example only the left end of the grinding roller 24 is shown, wherein the right
• FIG. 3 schematically shows a cross section of a section of an end region of a grinding roller 30.
• the grinding roller 30 has, by way of example, three
• Wear protection elements 34 which are cylindrical and are mounted in an inner surface region of the grinding roller 30, which does not include the end of the grinding roller.
• the wear protection elements are each arranged in a recess in the roller base body 36 of the grinding roller, wherein an upper region of the wear protection elements 34 protrudes from the roller base body 36.
• the juxtaposed wear protection elements are spaced apart from each other such that during operation of the grinding roller 30 between adjacent wear protection elements 34 an autogenous
• Wear protection element 32 is flush with the outside of the
• FIG. 3 further shows a connecting element 38, which between the
• Wear protection element 32 and the roller base 36 is mounted.
• the connecting element is over the entire surface of the recess in the
• roller base body 36 in which the wear protection element is arranged, applied, so that the wear protection element 32 is exclusively via the connecting element 38 with the roller body 36 in connection.
• the wear protection element 32 and the Walzengrundgroper 36 each have two connection areas on which the connecting element 38 is applied.
• the lower region of the connecting element is to be understood as meaning the radially inwardly arranged surface region of the connecting element.
• FIG. 4 shows a grinding roller 40 with a wear protection element 42 at the end of the roller base body 48, which for example has a square cross section and at the end of the roller base body on the side surface
• the wear protection element 42 projects in the radial direction from the surface of the roller base body and in the axial direction from the side surface of the roller base body.
• the grinding roller 40 further has between the side surface of the grinding roller main body and the wear protection element 42, a connecting element 46, which the Mahlwalzengrund emotions with the
• Wear protection element 42 connects.
• a rectangular support member 44 is further arranged, which with its long Side is attached to the side surface of the roller body 48 and rests with its upper side against the wear protection element 42 and this is supported in the radial direction.
• FIG. 5 shows a grinding roller 50 according to a further embodiment, wherein the grinding roller 50 at the end of the roller body 58 a
• Wear protection element 52 which has a pentagonal cross-section and is arranged in a recess at the end of the roller body 58 such that it protrudes in both the radial and in the axial direction of the roller body.
• Wear protection element 52 from the roller base body 58 is supported by a support member 54 in the radial direction, wherein the cross section of the wear protection element 52 in the direction of the support surface between the
• Wear protection element 52 and the support member 54 tapers. Furthermore, the grinding roller 50 has a connecting element 56 which is arranged within the recess in the roller base body 58 and connects the roller base body 58 with the wear protection element 52.
• FIG. 6 shows a grinding roller 60 according to a further exemplary embodiment with one arranged at the end of the roller body 68
• Wear protection element 62 which has a wedge-shaped cross-section and in a likewise wedge-shaped recess in the roller base body 68th
• Wear protection element 62 a connecting element 66 is attached, so that the wear protection element 62 is only via the connecting element 66 with the roller body 68 in connection.
• FIG. 7 shows a wear protection element 70 with an exemplary rectangular cross section, which is arranged in a recess in a roller base body 74 and terminates flush with the roller base body 74.
• Wear protection element 70 has at its facing the roller body Each side on a projection 76, wherein in the roller body a recess 78 is arranged. Between the recess 78 and the projection 76, a connecting element 72 is attached, which connects the roller base body 74 with the wear protection element 70. It is also conceivable, at the edges outside of the recess 78 and the projection 76, in which touch the roller base body 74 and the wear protection element 70, also to attach a connecting element for connecting these elements.
• the wear protection element 80 shown in FIG. 8 is arranged, as in FIG. 7, in a recess of the roller base body and has a lower wave-shaped surface 82, wherein a connecting element 84 is mounted between the wave-shaped surface 82 and the roller base body. It is also conceivable to form both surfaces of the wear protection element 80 that are in contact with the roller body in a corrugated manner in order to achieve a stronger connection of the roller body with the wear protection element 80 via the connection element 84. Furthermore, the
• Roll basic body have wavy surfaces.
• FIG. 9 shows a wear protection element 86 which, according to FIG.
• Roller main body 88 is arranged, wherein the roller base body 88 in the recess on each of the surfaces connected to the wear protection element 86 has a recess 90 in which a
• Connecting element 92 is arranged for connection of the roller base body 88 with the wear protection element 86.
• Roller base 96 in associated surfaces with one each
• Recess 98 provided, in which a connecting element 100 is arranged for connection of the roller base body 96 with the wear protection element 94.
• Fig. 11 and Fig. 12 show a wear protection element 102, wherein a
• Connecting element 104, 106 is attached to each only one with the roller base body in connection surface.
• FIG. 15 shows a wear protection element 120, which is attached to a roller base body 124 via a connecting element 122.
• Fig. 16 shows a
• Wear protection element 126 which is attached via a connecting element 128 to a roller base body 130, wherein the lower portion of the
• Connecting element 126 and the associated with this region of the roll base 130 have a wave profile.
• connection element 38, 44, 56, 66, 72, 84, 92, 102 described with reference to FIGS. 3 to 12 and FIGS. 15 and 16 is, for example, a solder, in particular of a metal alloy, which at least partially comprises elements of silver and / or copper and / or cadmium and / or zinc.
• the connecting element 38, 44, 56, 66, 72, 84, 92, 102 can be an adhesive, in particular a one-component or two-component adhesive.
• FIG. 13 shows a cross-section of a device 112 for processing a grinding roller with a holding device 10, which is shown schematically in FIG. 13 as two vertically extending struts. Between the two struts a grinding roller 108 is arranged, which is rotatable about its longitudinal axis in the
• Holding device 110 is attached.
• Fig. 14 shows a plan view of the apparatus for processing a grinding roller.
• Wear protection elements are arranged, additionally shown. In the By way of example, not the entire surfaces of the recesses at the ends of the grinding roller 108 are covered with wear protection elements 118.
• the device 1 12 shown in Fig. 14 further comprises a
• Processing device 1 14, which is shown schematically extending in the axial direction along the entire length of the grinding roller extending.
• Processing station 1 14 further comprises a heating device 1 6, which is arranged on the processing station 1 14, that they
• Wear protection elements 1 18 of the grinding roller 108 is opposite.
• Heating device for example, be attached to the processing device 114 so that it can be moved within the processing device 1 14.
• a further heating device 116 at the right end region of the grinding roller 108 in FIG. 14 is optionally shown in dashed lines.
• another processing device 14 it is possible to have another processing device 14 on the other side of the grinding roller 108 opposite to that shown
• Machining device 1 14 to arrange, as shown in Fig. 14 in dashed lines.
• Roll base body rotatably mounted in the holding device.
• Connecting element 38, 44, 56, 66, 72, 84, 92, 102 for example a
• Soldering material or an adhesive is applied to the roller body on the area on which a wear protection element is to be attached.
• the connecting element 38, 44, 56, 66, 72, 84, 92, 102 is applied in the recesses at the ends of the roller base body.
• the roll base body as well as the wear protection element to be fastened to the roll base body is heated, for example, by the heating device 16 of the processing device 14.
• the connecting element in particular the solder, liquefies.
• Heating device 116 may be, for example, a flame, a Laser, a soldering torch, a hot air device, an ultrasonic device, an electron beam device or an induction heating device act.
• the wear protection element is in a next step on the
• the liquid connecting element cures, for example under ambient conditions, wherein a compound, in particular a cohesive connection, between the roller body and the wear protection element is formed.
• the wear protection element together with the connecting element, in particular a solder on the
• Roll base body positioned and then heated by the heating device, so that the particular cohesive connection between the roller body and the wear protection element is formed. It is furthermore advantageous to arrange the heating device 16 and an additional cooling device on the processing device 114 in such a way that a heating / cooling of a connecting element offset in time or a parallel processing of different connecting elements is made possible.

Landscapes

• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Rolls And Other Rotary Bodies (AREA)
• Crushing And Grinding (AREA)
• Pistons, Piston Rings, And Cylinders (AREA)
• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
• Preliminary Treatment Of Fibers (AREA)
• Grinding Of Cylindrical And Plane Surfaces (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (2)

Family

ID=52345161

Family Applications (1)

Country Status (8)

Family Cites Families (7)

• 2013
  • 2013-12-19 DE DE102013114516.7A patent/DE102013114516B4/de active Active
• 2014
  • 2014-12-18 WO PCT/EP2014/003434 patent/WO2015090602A2/de active Application Filing
  • 2014-12-18 BR BR112016014233-0A patent/BR112016014233B1/pt active IP Right Grant
  • 2014-12-18 PE PE2016000821A patent/PE20161150A1/es unknown
  • 2014-12-18 AU AU2014365743A patent/AU2014365743B2/en active Active
  • 2014-12-18 CA CA2933396A patent/CA2933396C/en active Active
• 2016
  • 2016-06-10 ZA ZA2016/03965A patent/ZA201603965B/en unknown
  • 2016-06-17 CL CL2016001562A patent/CL2016001562A1/es unknown

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