CA2159726C - Roll - Google Patents
Roll Download PDFInfo
- Publication number
- CA2159726C CA2159726C CA002159726A CA2159726A CA2159726C CA 2159726 C CA2159726 C CA 2159726C CA 002159726 A CA002159726 A CA 002159726A CA 2159726 A CA2159726 A CA 2159726A CA 2159726 C CA2159726 C CA 2159726C
- Authority
- CA
- Canada
- Prior art keywords
- roll
- core
- ribs
- roller
- gap
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/02—Bearings
- F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
- F16C13/024—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
- B30B3/005—Roll constructions
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0206—Controlled deflection rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/05—Sleeved rolls with deflectable sleeves
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Crushing And Grinding (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Massaging Devices (AREA)
- Paper (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
A roll is described, particularly a roll for crushing or de-agglomerating different materials.
It can be used in all situations where deformations of the roll ends, in association with a constant roll gap, constitute a problem, particularly at high roll loadings.
The object of the invention is to further develop a roll of this type so that variable adjustments or a constant roll gap are possible at different operating stages.
This object is achieved in that the roll consists of a core and a roll shell, wherein elastic elements are disposed between the core and the roll shell.
It can be used in all situations where deformations of the roll ends, in association with a constant roll gap, constitute a problem, particularly at high roll loadings.
The object of the invention is to further develop a roll of this type so that variable adjustments or a constant roll gap are possible at different operating stages.
This object is achieved in that the roll consists of a core and a roll shell, wherein elastic elements are disposed between the core and the roll shell.
Description
Description Roll This invention relates to a roll, particularly a roll for crushing or de-agglomerating different materials, such as granular bulk material, pigments and the like, for example, and also for treating sheet-like products, according to the precharacterising clause of claim 1.
It can be used in all situations where deformations of the roll ends, in association with a constant roll gap, constitute a problem in an operating situation.
Depending on their function, rolls disposed in roll mills, calenders and the like are either arranged parallel to each other with a defined spacing (roll gap or crushing gap) or they are pressed against each other practically without a gap. In this respect they undergo both wear and a certain deflection in operation, which results in departures from defined operating prerequisites. If a roll which is mounted at its ends is pressed against a second, similarly mounted roll, the rolls deflect. The deflection is greater in the middle than at the mounted ends.
A deflection such as this gives rise, in printing machinery for example, to an unequal contact pressure on the line of contact, which has an adverse effect on the print result. Solutions have been sought in order to compensate for a deflection of this type, particularly in the construction of printing machinery, where long, slender rolls are employed.
Apart from comparatively simple solutions, such as the provision of elastic shell layers (rubber), the controlled-deflection roll is primarily employed, where roll deflections are compensated for in a controlled manner by means of costly constructional and control technology arrangements. This is primarily accomplished by hydraulic systems, wherein the roll is a rotating hollow roll with a stationary crosshead (see European patent application number 91102665.6 published on October 16, 1991, under publication number 0 451 470 A2 or European patent application number 91114596.9 published on April 29, 1992, under publication number 0 482 318 Al).
According to 0 451 470 A2, supporting elements arranged in rows against the internal periphery of the hollow roll are pressurised by means of a fluid in order thus to maintain a specific bending line.
. . . CA 02159726 2004-04-23 In the known NIPCO rolls a hydrostatic bearing arrangement enables deflection to be compensated for. The production of a hydrostatic plain bearing such as this is very costly, however.
In contrast, the use of electromagnets instead of hydraulic systems is proposed in European patent application number 80103334.1 published on January 7, 1981, under publication number 0 021 297. A multiplicity of electromagnets is disposed in the roll shell, with each of which a rotor and a sensor is associated, wherein the energisation of the individual electromagnets can be controlled via the associated sensors.
As another possibility, European patent application number 86309081.7 published on July 1, 1987, under publication number 0 227 302 proposes the construction of calendar rolls as hollow rolls, in the interiors of which an axial support is again mounted.
This axial support is mounted both at its ends and supported against the internal periphery of the hollow roll. In addition, the hollow shaft is also mounted at its external periphery at its ends.
The use of cambered rolls is also generally known, although by this means compensation for deflection is only possible for an adjusting force (specific pressure) which has to be determined beforehand by calculation. During changes which are necessary during operation, cambering such as this becomes inappropriate. However, for previously calculated operating situations it enables a uniform work of comminution to be achieved over the entire roll width for crushing rolls (smooth rolls).
Moreover, wear of the roll shell can be compensated for within limits by cambering or camber grinding. The underlying object of the present invention is now to further develop a roll of this type, particularly a crushing roll (smooth roll), so that on overcoming the disadvantages of the known prior art a non-controlled, passive compensation for deflection is provided in order to achieve a constant crushing gap. The aim is to achieve a high level of operational reliability at a cost which is technically and economically justifiable.
This object is achieved by means of the characterising features of claim 1.
According to the invention, the roll contains a core with two-point mounting at its ends.
Elastic elements are disposed between the core and a wear-resistant shell. The shell is _2159726 supported by these elastic elements. The elastic elements may either consist of individual spring elements known in the art (e.g. elastomeric spring elements, metal springs and the like) or may be constructed in the form of a continuous or discontinuous elastic intermediate layer. An intermediate layer such as this is softer than the material used for the core and shell.
The spring travel of the elastic elements must be greater than the deflection of the roll core When individual spring elements are used, the size of the gap between the core and the shell likewise depends on the extent of the deflection, wherein the gap size must be greater than the latter. The fixed mounting of spring elements such as this must also be included in the determination of the gap size, if necessary.
It is possible to use spring elements of different stiffness, which enables deflection to be almost eliminated.
The solution according to the invention also enables longer rolls exhibiting low deflection to be produced, or enables cylinder mills having longer operative rolls to be manufactured more economically as regards compensation for deformation/deflection. Moreover, if the roll shell becomes damaged it can easily be replaced.
The gap can also be used for cooling in very different forms and in the form known in the art. For example, if a cooling coil is employed, with introduction of the coolant on one end face (with the "smaller" radius) and discharge of the coolant on the other end face, even thermal expansions which give rise to a tapered deformation of the roll are not deleterious for the purpose of achieving a constant crushing gap, provided that the departure from the cylinder is significantly less than the deflection of the roll shell. The roll shell merely has to be linear.
The lower heat capacity of the roll shell proves to be favourable as regards control technology.
Using the roll according to the invention, it is possible to achieve a constant crushing gap at different operating stages, e.g. during start-up.
Cambering, which was hitherto customary for crushing rolls (smooth rolls), can be dispensed with.
A roll construction such as this makes variable adjustments possible when the loading is not constant and also at constant, higher loading.
In fact it is also known that elastic intermediate or outer layers can be used for the rolls of printing machinery, but these can only be used for considerably lower forces and pressures.
It is not possible simply to transfer solutions of this type to the smooth rolls of the grinding compartments of a cylinder mill, or to a pigment roll mill, for example.
The invention is described in more detail below by way of an example of an embodiment and with reference to a drawing. The drawing illustrates the principle of a roll according to the mvent~on.
A smooth roll I, of length one metre, for a cylinder mill (grinding compartment) consists of a core 2 in the form of a thick-walled tube made of normal cast steel. The wall thickness is sufficient for the machining of the bearing stubs 3. The surface is merely turned.
Commercially available spring elements 4 made of elastomer and of identical spring stiffness are disposed on the surface at intervals of about 100 mm, and are seated in guides 5 in accordance with their material properties. The outside diameter of the spring elements 4 is selected so that a gap 8 of about 10 mm is produced between the core 2 and a roll shell 6 made of chilled cast iron. This roll shell 6 is cylindrically ground on its outside diameter and is again merely turned inside.
Because at a limiting loading of 50 N/mm roll length the eccentricity of the roll 1 is less than 1 mm, the gap 8 can also be reduced to just this size. The gap is sealed at the sides, i.e. at the end faces of the roll, with customary sealing elements 7.
~m9~~s In a modified form the spring elements 4 may also be arranged in the manner of ribs, preferably in the form of discontinuous, prestressed longitudinal ribs which consist of polyurethane, for example, and which are adhesively bonded to or cast on the core 2.
Sealing elements 7 are again disposed at the ends of the roll 1. In addition to the transmission of torque and its ease of manufacture, the arrangement of discontinuous longitudinal ribs also facilitates the optimum circulation of coolant, if necessary.
The roll I according to the invention, which is not restricted to the embodiment illustrated, enables a high level of functionality to be achieved at comparatively low manufacturing and operating costs, and in particular enables a crushing gap which is constant over many hours of operation to be achieved in association with the possibility of cooling.
Its functional advantages during the uniform comminution or size reduction of material to be crushed are manifested in a longer service life and/or greater variability of the operating parameters.
Moreover, it is thus possible, in pigment roll mills for example, to employ only one type of roll for different coloured pigments.
- ~ _ 215976 Reference Numerals 1 roll 2 core 3 bearing stub 4 spring element guide 6 roll shell 7 sealing element 8 gap
It can be used in all situations where deformations of the roll ends, in association with a constant roll gap, constitute a problem in an operating situation.
Depending on their function, rolls disposed in roll mills, calenders and the like are either arranged parallel to each other with a defined spacing (roll gap or crushing gap) or they are pressed against each other practically without a gap. In this respect they undergo both wear and a certain deflection in operation, which results in departures from defined operating prerequisites. If a roll which is mounted at its ends is pressed against a second, similarly mounted roll, the rolls deflect. The deflection is greater in the middle than at the mounted ends.
A deflection such as this gives rise, in printing machinery for example, to an unequal contact pressure on the line of contact, which has an adverse effect on the print result. Solutions have been sought in order to compensate for a deflection of this type, particularly in the construction of printing machinery, where long, slender rolls are employed.
Apart from comparatively simple solutions, such as the provision of elastic shell layers (rubber), the controlled-deflection roll is primarily employed, where roll deflections are compensated for in a controlled manner by means of costly constructional and control technology arrangements. This is primarily accomplished by hydraulic systems, wherein the roll is a rotating hollow roll with a stationary crosshead (see European patent application number 91102665.6 published on October 16, 1991, under publication number 0 451 470 A2 or European patent application number 91114596.9 published on April 29, 1992, under publication number 0 482 318 Al).
According to 0 451 470 A2, supporting elements arranged in rows against the internal periphery of the hollow roll are pressurised by means of a fluid in order thus to maintain a specific bending line.
. . . CA 02159726 2004-04-23 In the known NIPCO rolls a hydrostatic bearing arrangement enables deflection to be compensated for. The production of a hydrostatic plain bearing such as this is very costly, however.
In contrast, the use of electromagnets instead of hydraulic systems is proposed in European patent application number 80103334.1 published on January 7, 1981, under publication number 0 021 297. A multiplicity of electromagnets is disposed in the roll shell, with each of which a rotor and a sensor is associated, wherein the energisation of the individual electromagnets can be controlled via the associated sensors.
As another possibility, European patent application number 86309081.7 published on July 1, 1987, under publication number 0 227 302 proposes the construction of calendar rolls as hollow rolls, in the interiors of which an axial support is again mounted.
This axial support is mounted both at its ends and supported against the internal periphery of the hollow roll. In addition, the hollow shaft is also mounted at its external periphery at its ends.
The use of cambered rolls is also generally known, although by this means compensation for deflection is only possible for an adjusting force (specific pressure) which has to be determined beforehand by calculation. During changes which are necessary during operation, cambering such as this becomes inappropriate. However, for previously calculated operating situations it enables a uniform work of comminution to be achieved over the entire roll width for crushing rolls (smooth rolls).
Moreover, wear of the roll shell can be compensated for within limits by cambering or camber grinding. The underlying object of the present invention is now to further develop a roll of this type, particularly a crushing roll (smooth roll), so that on overcoming the disadvantages of the known prior art a non-controlled, passive compensation for deflection is provided in order to achieve a constant crushing gap. The aim is to achieve a high level of operational reliability at a cost which is technically and economically justifiable.
This object is achieved by means of the characterising features of claim 1.
According to the invention, the roll contains a core with two-point mounting at its ends.
Elastic elements are disposed between the core and a wear-resistant shell. The shell is _2159726 supported by these elastic elements. The elastic elements may either consist of individual spring elements known in the art (e.g. elastomeric spring elements, metal springs and the like) or may be constructed in the form of a continuous or discontinuous elastic intermediate layer. An intermediate layer such as this is softer than the material used for the core and shell.
The spring travel of the elastic elements must be greater than the deflection of the roll core When individual spring elements are used, the size of the gap between the core and the shell likewise depends on the extent of the deflection, wherein the gap size must be greater than the latter. The fixed mounting of spring elements such as this must also be included in the determination of the gap size, if necessary.
It is possible to use spring elements of different stiffness, which enables deflection to be almost eliminated.
The solution according to the invention also enables longer rolls exhibiting low deflection to be produced, or enables cylinder mills having longer operative rolls to be manufactured more economically as regards compensation for deformation/deflection. Moreover, if the roll shell becomes damaged it can easily be replaced.
The gap can also be used for cooling in very different forms and in the form known in the art. For example, if a cooling coil is employed, with introduction of the coolant on one end face (with the "smaller" radius) and discharge of the coolant on the other end face, even thermal expansions which give rise to a tapered deformation of the roll are not deleterious for the purpose of achieving a constant crushing gap, provided that the departure from the cylinder is significantly less than the deflection of the roll shell. The roll shell merely has to be linear.
The lower heat capacity of the roll shell proves to be favourable as regards control technology.
Using the roll according to the invention, it is possible to achieve a constant crushing gap at different operating stages, e.g. during start-up.
Cambering, which was hitherto customary for crushing rolls (smooth rolls), can be dispensed with.
A roll construction such as this makes variable adjustments possible when the loading is not constant and also at constant, higher loading.
In fact it is also known that elastic intermediate or outer layers can be used for the rolls of printing machinery, but these can only be used for considerably lower forces and pressures.
It is not possible simply to transfer solutions of this type to the smooth rolls of the grinding compartments of a cylinder mill, or to a pigment roll mill, for example.
The invention is described in more detail below by way of an example of an embodiment and with reference to a drawing. The drawing illustrates the principle of a roll according to the mvent~on.
A smooth roll I, of length one metre, for a cylinder mill (grinding compartment) consists of a core 2 in the form of a thick-walled tube made of normal cast steel. The wall thickness is sufficient for the machining of the bearing stubs 3. The surface is merely turned.
Commercially available spring elements 4 made of elastomer and of identical spring stiffness are disposed on the surface at intervals of about 100 mm, and are seated in guides 5 in accordance with their material properties. The outside diameter of the spring elements 4 is selected so that a gap 8 of about 10 mm is produced between the core 2 and a roll shell 6 made of chilled cast iron. This roll shell 6 is cylindrically ground on its outside diameter and is again merely turned inside.
Because at a limiting loading of 50 N/mm roll length the eccentricity of the roll 1 is less than 1 mm, the gap 8 can also be reduced to just this size. The gap is sealed at the sides, i.e. at the end faces of the roll, with customary sealing elements 7.
~m9~~s In a modified form the spring elements 4 may also be arranged in the manner of ribs, preferably in the form of discontinuous, prestressed longitudinal ribs which consist of polyurethane, for example, and which are adhesively bonded to or cast on the core 2.
Sealing elements 7 are again disposed at the ends of the roll 1. In addition to the transmission of torque and its ease of manufacture, the arrangement of discontinuous longitudinal ribs also facilitates the optimum circulation of coolant, if necessary.
The roll I according to the invention, which is not restricted to the embodiment illustrated, enables a high level of functionality to be achieved at comparatively low manufacturing and operating costs, and in particular enables a crushing gap which is constant over many hours of operation to be achieved in association with the possibility of cooling.
Its functional advantages during the uniform comminution or size reduction of material to be crushed are manifested in a longer service life and/or greater variability of the operating parameters.
Moreover, it is thus possible, in pigment roll mills for example, to employ only one type of roll for different coloured pigments.
- ~ _ 215976 Reference Numerals 1 roll 2 core 3 bearing stub 4 spring element guide 6 roll shell 7 sealing element 8 gap
Claims (17)
1. A milling roller for compensating roller deformations and deflections, the miller roller comprising:
a cylindrical core and a tubular roller sleeve;
elastic elements being positioned between the core and the roller sleeve and therefore a gap being formed between the core and the roller sleeve;
the elastic elements being arranged as spring elements at intervals from one another in the form of lengthwise ribs made of elastomer;
a range of spring of the elastic elements being greater than the deflection of the core;
and a magnitude of the gap between the core and the roller sleeve being greater than the deflection of the core.
a cylindrical core and a tubular roller sleeve;
elastic elements being positioned between the core and the roller sleeve and therefore a gap being formed between the core and the roller sleeve;
the elastic elements being arranged as spring elements at intervals from one another in the form of lengthwise ribs made of elastomer;
a range of spring of the elastic elements being greater than the deflection of the core;
and a magnitude of the gap between the core and the roller sleeve being greater than the deflection of the core.
2. The roller according to claim 1, characterized in that the gap between the core and the roller sleeve has the magnitude of a maximum deflection of the core.
3. The roller according to either one of claim 1 or claim 2, characterized in that the roller sleeve is cylindrical.
4. The roller according to any one of claims 1 through 3, characterized in that the roller sleeve is conical.
5. The roller according to any one of claims 1 through 4, characterized in that the lengthwise ribs are implemented as an interrupted elastic layer.
6. The roller according to any one of claims 1 through 4, characterized in that the lengthwise ribs are implemented as an uninterrupted elastic layer.
7. A crushing roll with elastic elements to compensate for roll deflection and roll end deformation, wherein the roll comprises:
a cylindrical core having a circumference with a uniform outer diameter, a tubular roll shell surrounding and spaced from said core by a gap, the tubular roll shell comprising a single metal layer, and elastic elements disposed in said gap between the core and the roll shell, the elastic elements comprising a plurality of prestressed elongated ribs extending longitudinally with respect to the roll and being discontinuous around the core circumference.
a cylindrical core having a circumference with a uniform outer diameter, a tubular roll shell surrounding and spaced from said core by a gap, the tubular roll shell comprising a single metal layer, and elastic elements disposed in said gap between the core and the roll shell, the elastic elements comprising a plurality of prestressed elongated ribs extending longitudinally with respect to the roll and being discontinuous around the core circumference.
8. The crushing roll as in claim 7 wherein each of the ribs has an identical spring stiffness.
9. The crushing roll as in claim 7 wherein the ribs are polyurethane ribs.
10. The crushing roll as in claim 7 wherein the ribs are angularly spaced around the core circumference.
11. The crushing roll as in claim 7 wherein the ribs are configured to allow coolant flow between said ribs.
12. The crushing roll as in claim 7 wherein the ribs are attached to the core by an adhesive.
13. The crushing roll as in claim 7 wherein the ribs are attached to the core by casting.
14. The crushing roll as in claim 7 wherein the circumference of the core comprises a turned outer surface.
15. The crushing roll as in claim 7 wherein the roll shell is cylindrical.
16. The crushing roll as in claim 7 wherein each of the plurality of elongated ribs has the same spring stiffness.
17. The crushing roll as in claim 7 wherein the cylindrical core has guides in the circumference, and wherein the ribs are positioned in the guides.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1773/94-7 | 1994-06-06 | ||
| CH177394 | 1994-06-06 | ||
| PCT/CH1995/000115 WO1995033932A1 (en) | 1994-06-06 | 1995-05-23 | Roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2159726A1 CA2159726A1 (en) | 1995-12-07 |
| CA2159726C true CA2159726C (en) | 2004-10-26 |
Family
ID=4218273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002159726A Expired - Fee Related CA2159726C (en) | 1994-06-06 | 1995-05-23 | Roll |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP0712469B1 (en) |
| JP (1) | JP3464224B2 (en) |
| KR (1) | KR100345227B1 (en) |
| CN (1) | CN1046573C (en) |
| AT (1) | ATE230079T1 (en) |
| CA (1) | CA2159726C (en) |
| CZ (1) | CZ284597B6 (en) |
| DE (1) | DE59510514D1 (en) |
| ES (1) | ES2188659T3 (en) |
| FI (1) | FI960524A0 (en) |
| HU (1) | HUT73837A (en) |
| RU (1) | RU2144849C1 (en) |
| WO (1) | WO1995033932A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558425A (en) * | 2020-05-27 | 2020-08-21 | 时公玉 | Green building rubbish disposal pool |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19650297A1 (en) * | 1996-12-04 | 1998-06-18 | Achenbach Buschhuetten Gmbh | Laminator |
| DE19739187A1 (en) * | 1997-09-08 | 1999-03-11 | Truetzschler Gmbh & Co Kg | Device on a card with a revolving lid device |
| DE10024851C5 (en) * | 2000-05-19 | 2010-12-16 | Erich Netzsch Gmbh & Co Holding Kg | Roller with deflection compensation |
| DE10242579A1 (en) * | 2002-09-11 | 2005-03-17 | Claas Selbstfahrende Erntemaschinen Gmbh | Device for absorbing vibration gene in an agricultural harvester |
| DE20221793U1 (en) | 2002-10-31 | 2007-10-31 | Koenig & Bauer Aktiengesellschaft | Rotational body of a printing machine with a bale |
| DE102009033482A1 (en) * | 2009-06-22 | 2011-01-05 | Leonhard Breitenbach Gmbh | Roller, in particular refining roller |
| CN101984317A (en) * | 2010-11-18 | 2011-03-09 | 苏州博恒浩科技有限公司 | Elastic drying roll |
| RU2603727C2 (en) | 2011-05-12 | 2016-11-27 | Бюлер Аг | Device and method of grinding particles in fluid material |
| WO2012167849A1 (en) | 2011-06-06 | 2012-12-13 | Andritz Küsters Gmbh | Roller and methods for production and operation |
| JP6255899B2 (en) * | 2013-10-29 | 2018-01-10 | 凸版印刷株式会社 | Flexographic printing machine, functional thin film manufacturing method and functional thin film manufacturing apparatus using the same |
| CN104759312B (en) * | 2015-02-13 | 2017-08-04 | 青岛德固特节能装备股份有限公司 | A kind of oppositely rolling roller crusher |
| CN109016612A (en) * | 2018-07-24 | 2018-12-18 | 绍兴民程纺织科技有限公司 | A kind of continous way weaving wool compaction apparatus |
| CN110976005B (en) * | 2019-12-19 | 2020-12-01 | 乐清市路航电气有限公司 | Biomass particle fuel smashing device with material pressing function |
| CN112974536A (en) * | 2021-03-15 | 2021-06-18 | 王俊勇 | Composite roller with detachable and reusable roller sleeve |
| CN114162634A (en) * | 2021-12-24 | 2022-03-11 | 莱芜钢铁集团泰东实业有限公司 | Ash discharging and conveying device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR194727A1 (en) * | 1971-09-13 | 1973-08-14 | Gulf & Western Syst Co | A COMPOSITE CYLINDER AND A METHOD OF PRODUCING IT |
| DE2251763C3 (en) * | 1972-10-21 | 1975-06-05 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover | Roller with deflection compensation for rolling out plastic materials into foil webs on a calender or rolling mill |
| DE2618698C3 (en) * | 1976-04-28 | 1979-03-29 | Develop Dr. Eisbein Gmbh & Co, 7016 Gerlingen | Pressure or press roller |
| DE9105482U1 (en) * | 1991-05-03 | 1991-07-04 | Derichs, Eberhard, 4150 Krefeld | Roller serving as a heat exchanger |
-
1995
- 1995-05-23 HU HU9503646A patent/HUT73837A/en unknown
- 1995-05-23 CA CA002159726A patent/CA2159726C/en not_active Expired - Fee Related
- 1995-05-23 AT AT95917881T patent/ATE230079T1/en not_active IP Right Cessation
- 1995-05-23 RU RU96104252A patent/RU2144849C1/en active
- 1995-05-23 EP EP95917881A patent/EP0712469B1/en not_active Revoked
- 1995-05-23 ES ES95917881T patent/ES2188659T3/en not_active Expired - Lifetime
- 1995-05-23 KR KR1019950704807A patent/KR100345227B1/en not_active IP Right Cessation
- 1995-05-23 CN CN95190182A patent/CN1046573C/en not_active Expired - Lifetime
- 1995-05-23 DE DE59510514T patent/DE59510514D1/en not_active Revoked
- 1995-05-23 CZ CZ953034A patent/CZ284597B6/en not_active IP Right Cessation
- 1995-05-23 JP JP50012996A patent/JP3464224B2/en not_active Expired - Lifetime
- 1995-05-23 WO PCT/CH1995/000115 patent/WO1995033932A1/en active IP Right Grant
-
1996
- 1996-02-05 FI FI960524A patent/FI960524A0/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558425A (en) * | 2020-05-27 | 2020-08-21 | 时公玉 | Green building rubbish disposal pool |
Also Published As
| Publication number | Publication date |
|---|---|
| HUT73837A (en) | 1996-09-30 |
| JP3464224B2 (en) | 2003-11-05 |
| CN1046573C (en) | 1999-11-17 |
| ES2188659T3 (en) | 2003-07-01 |
| DE59510514D1 (en) | 2003-01-30 |
| EP0712469A1 (en) | 1996-05-22 |
| CZ284597B6 (en) | 1999-01-13 |
| ATE230079T1 (en) | 2003-01-15 |
| KR960701704A (en) | 1996-03-28 |
| JPH09501763A (en) | 1997-02-18 |
| CA2159726A1 (en) | 1995-12-07 |
| CZ303495A3 (en) | 1997-02-12 |
| WO1995033932A1 (en) | 1995-12-14 |
| FI960524A (en) | 1996-02-05 |
| KR100345227B1 (en) | 2002-11-08 |
| HU9503646D0 (en) | 1996-02-28 |
| FI960524A0 (en) | 1996-02-05 |
| RU2144849C1 (en) | 2000-01-27 |
| CN1124519A (en) | 1996-06-12 |
| EP0712469B1 (en) | 2002-12-18 |
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