WO2011012629A1 - Revêtement de protection pour des parois de moulins, de malaxeurs, de trémies et d’autres machines - Google Patents

Revêtement de protection pour des parois de moulins, de malaxeurs, de trémies et d’autres machines Download PDF

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Publication number
WO2011012629A1
WO2011012629A1 PCT/EP2010/060910 EP2010060910W WO2011012629A1 WO 2011012629 A1 WO2011012629 A1 WO 2011012629A1 EP 2010060910 W EP2010060910 W EP 2010060910W WO 2011012629 A1 WO2011012629 A1 WO 2011012629A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
panel
seats
previous
snap
Prior art date
Application number
PCT/EP2010/060910
Other languages
English (en)
Inventor
Enzo Bianchi
Loriano Bocini
Original Assignee
B & B S.R.L.
Industrie Bitossi S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B & B S.R.L., Industrie Bitossi S.P.A. filed Critical B & B S.R.L.
Publication of WO2011012629A1 publication Critical patent/WO2011012629A1/fr

Links

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
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles
    • B01F35/511—Mixing receptacles provided with liners, e.g. wear resistant or flexible liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers
    • B02C17/225—Lining for containers using rubber or elastomeric material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0862—Adaptations of mixing containers therefor, e.g. use of material, coatings
    • 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 present invention relates to a protective lining for walls of mills, mixers, hoppers and other machines, in particular a protective lining which can be applied to these walls for protecting them from moving material.
  • EP 1479442, EP 1810752 and EP 1990086 disclose protective linings comprising panels or other elastomeric members having a high wear resistance.
  • rigid inserts can be inserted in the elastomeric material before its vulcanization, as in the first embodiment of DE 2061554.
  • the inserts must be degreased with solvents and coated by one or more layers of a primer for allowing their perfect adhesion to the panel during the vulcanization. Said chemical treatments however increase the manufacturing costs and times, and further they are ecologically disadvantageous.
  • the base of a spike is snap-fitted into a seat made in an elastomeric panel.
  • the tip of said spike protrudes from the panel and has a circular transversal section, so as to carry out a function substantially different from the function of said known rigid inserts.
  • GB 1431618 and WO 2007/054959 disclose a rigid layer snap-fitted onto an elastomeric layer, which thus does not comprise any functional protective surface. Therefore, the combined effect of rigid insert and elastomeric panel having coplanar protective surfaces, as in the first embodiment of DE 2061554, cannot be obtained.
  • US 2155215 discloses rigid inserts molten together with a metal panel. Since it is free from an elastomeric panel with a functional protective surface, also this known lining cannot be used as the lining according to the first embodiment of DE 2061554.
  • one or more inserts can be snap-fitted into particular seats made in the panel, so as to obtain a resistant coupling between panel and inserts without chemical treatments.
  • the outer profile of the transversal section of the inserts is substantially constant, so that inserts with different sizes can be manufactured by cutting with different lengths a single piece having the same outer profile.
  • the inserts can be applied to the linings also after the vulcanization of the panel, even after the installation of the linings on the walls to be protected, so as to simplify their assembly, since the panels without inserts are lighter and thus easier to be raised for their installation.
  • the synergic effect of the combination of the materials employed for the panel and for the inserts, as well as of their shapes and arrangements, allows to obtain a lining having a wear resistance which is much higher than the resistance of the known linings, also when they are provided with rigid inserts.
  • the protective surface of the insert is preferably flush with the protective surface of the panel around the seat which houses the insert, so as to reduce the consumption of electric energy during the milling and the wear of the milling means which come into contact with the lining.
  • figure 1 shows a top view of the first embodiment of the lining
  • figure 2 shows a side view of the lining of figure 1 ;
  • figure 3 shows an exploded side view of the lining of figure 1;
  • figure 4 shows a perspective exploded side view of the lining of figure 1;
  • FIG. 5 shows a top view of the second embodiment of the lining
  • FIG 6 shows a side view of the lining of figure 5.
  • the lining according to the first embodiment of the present invention comprises in a known way an elastomeric panel 1, in particular made of rubber with a hardness comprised between 35 Shore A and 97 Shore A or of polyurethane with a hardness comprised between 35 Shore A and 55 Shore D.
  • the outer surface of panel 1, namely the lower surface in the figures, is preferably provided with at least one shaped groove 2, for example with a transversal section having an outer profile substantially mushroom-shaped, for coupling panel 1 with a corresponding shaped profile fastened to the surface of the machine to be protected.
  • the lateral surfaces of panel 1 are preferably provided with complementary grooves 3 and/or ridges 4 for coupling panel 1 with one or more adjacent panels.
  • the protective surface of panel 1, namely the upper surface in the figures, which is the consumable surface which comes into contact with the material from which the machine has to be protected, can be provided with at least one protrusion 5, in particular a partially cylindrical bulge arranged along the shaped groove 2.
  • panel 1 is provided with one or more seats 6, 7 (shown with broken lines in figure 3) which are open at least toward the protective surfaces and are internally shaped toward the bottom for forming at least one snap-fit joint.
  • said snap-fit joint comprises one or more flexible ribs 8, 9 projecting from lateral surfaces of seats 6, 7 and having one or more rounded edges.
  • Base 10 of seats 6, 7 is tapered toward the bottom.
  • one or first seats 6 comprise at least two parallel ribs 8, 9 projecting from opposite lateral surfaces.
  • First seats 6 are substantially parallelepiped-shaped and are arranged in a substantially parallelepiped portion of panel 1 along parallel columns and/or offset rows, in particular with a quincuncial arrangement.
  • One or more second seats 7 are substantially arc-shaped and are arranged in protrusion 5 of panel 1.
  • Second seats 7 comprise at least two pairs of flexible ribs 8, 9 arranged one parallel to the other at the ends of the arc of second seats 7.
  • Second seats 7 are also arranged parallelly along protrusion 5, so that shaped groove 2 is arranged in the arc of second seats 7.
  • One or more protective inserts 11, 12 made of a rigid material, in particular a sintered ceramic material with a content of alumina equal to or higher than 80%, a density equal to or higher than 3,1 g/cm 3 and a Rockwell 45N hardness equal to or higher than 70, namely a material more rigid than the material of panel 1 , are suitable for being arranged in seats 6, 7, respectively, of panel 1 and have a shape substantially complementary to these seats, namely substantially parallelepiped- or arc-shaped, so that inserts 11, 12 do not protrude from the respective seats 6, 7 and the protective surface of an insert 11, 12 is flush with the protective surface of panel 1 around seat 6, 7 which houses insert 11, 12, as it is clearly shown in the figures.
  • the base of protective inserts 11, 12 is provided with at least one snap -fit joint suitable for being inserted into the snap-fit joint of seats 6, 7.
  • the snap-fit joint of protective inserts 11, 12 comprises one or more grooves 13, 14 which are made along lateral surfaces of inserts 11, 12 and have one or more rounded edges, so as to be easily coupled with flexible ribs 8, 9 of seats 6, 7 of panel 1.
  • Base 15 of inserts 11, 12 is tapered, so as to easily bend flexible ribs 8, 9 for carrying out the snap-fit coupling.
  • the distance between grooves 13, 14 and the protective surface of inserts 11, 12 is substantially equal to the distance between flexible ribs 8, 9 and the protective surface of panel 1.
  • first inserts 11 are substantially parallelepiped-shaped and are snap-fitted into first seats 6 of panel 1 thanks to at least one pair of parallel grooves 13, 14 made along opposite lateral surfaces of first inserts 11.
  • Second inserts 12 are substantially arc-shaped and are snap-fitted into second seats 7 of panel 1 thanks to at least two pairs of parallel grooves 13, 14 made at the ends of the arc of second inserts 12.
  • Panel 1 is preferably vulcanized before inserts 11, 12 are inserted therein.
  • the lining according to the second embodiment of the invention comprises an elastomeric panel 16 made of the same material of panel 1 but with a substantially circular or annular, in particular annular, sector shape.
  • the outer surface of panel 16 is preferably provided with one or more shaped grooves 17 (shown with broken lines in figure 5) which are arranged along radial axes, while the lateral surfaces are preferably provided with complementary grooves 18 and/or ridges 19.
  • Panel 16 is provided with one or more seats which are open at least toward the protective surface and are internally shaped for obtaining a snap-fit joint similar to the joint of seats 6. Said seats, as well as the ribs of the relevant snap-fit joints, are arranged along radial axes of panel 16. Protective inserts 20 made of the same material and shaped substantially with the same transversal section of inserts 11 are snap-fitted into the seats of panel 16.
  • the outer profile of the transversal section of inserts 11, 12, 20 is substantially constant along a longitudinal axis thereof.
  • the inner profile of the transversal section of seats 6, 7 of panel 1, as well as of the seats of panel 16, is substantially constant along a longitudinal axis thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Accessories For Mixers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

L’invention concerne un revêtement de protection comprenant un panneau élastomère (1 ; 16) doté d’au moins une surface de protection et d’un ou de plusieurs logements (6, 7) qui sont ouverts au moins en direction de la surface de protection et sont agencés intérieurement de manière à former au moins un joint encliquetable (8, 9, 10), la base d’au moins un insert de protection (11, 12 ; 20) étant dotée d’au moins un joint encliquetable (13, 14, 15) inséré dans le joint encliquetable (8, 9, 10) d’un logement (6, 7), l’insert (11, 12 ; 20) étant disposé dans ledit logement (6, 7) et présentant une forme complémentaire à la forme de son logement (6, 7), le joint encliquetable (8, 9, 10) du siège (6, 7) présentant une ou plusieurs nervures flexibles (8, 9) faisant saillie depuis des surfaces latérales du siège (6, 7), le joint encliquetable (13, 14, 15) de l’insert (11, 12 ; 20) présentant une ou plusieurs rainures (13, 14) réalisées le long de surfaces latérales de l’insert (11, 12 ; 20), la distance entre les rainures (13, 14) et la surface de protection de l'insert (11, 12 ; 20) étant sensiblement égale à la distance entre les nervures flexibles (8, 9) et la surface de protection du panneau (1 ; 16).
PCT/EP2010/060910 2009-07-28 2010-07-27 Revêtement de protection pour des parois de moulins, de malaxeurs, de trémies et d’autres machines WO2011012629A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2009A001338 2009-07-28
IT001338A ITMI20091338A1 (it) 2009-07-28 2009-07-28 Rivestimento ed inserto protettivo per pareti di mulini, mescolatrici, tramogge ed altre macchine

Publications (1)

Publication Number Publication Date
WO2011012629A1 true WO2011012629A1 (fr) 2011-02-03

Family

ID=42112321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/060910 WO2011012629A1 (fr) 2009-07-28 2010-07-27 Revêtement de protection pour des parois de moulins, de malaxeurs, de trémies et d’autres machines

Country Status (2)

Country Link
IT (1) ITMI20091338A1 (fr)
WO (1) WO2011012629A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2644276A1 (fr) 2012-03-27 2013-10-02 Sandvik Intellectual Property Ab Système d'élément d'usure
ITMO20120152A1 (it) * 2012-06-11 2013-12-12 Certech S P A A Socio Unico Procedimento per la realizzazione di pannelli antiusura.
EP2698204A3 (fr) * 2012-08-13 2014-04-09 Sandvik Intellectual Property AB Cassette de protection contre l'usure de trémie d'alimentation de broyeur
EP2526210B1 (fr) * 2010-01-19 2015-01-07 Tega Industries Limited Tambour mélangeur pour haut fourneau
WO2016116837A1 (fr) * 2015-01-19 2016-07-28 Flsmidth A/S Système de panneaux résistant à l'usure avec imbrication
CN110339913A (zh) * 2019-08-20 2019-10-18 安徽科雷伯格胶辊有限公司 一种金属矿半自磨球磨机衬板

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155215A (en) 1936-02-27 1939-04-18 Beament Thomas Geoffrey Method of producing composite wear-resisting bodies
DE2061554A1 (de) 1969-12-16 1971-07-15 Trelleborgs Gummifabnks Aktiebolag, Trelleborg (Schweden) Verschleißschutzkorper aus Hartmetall oder keramischem Material in Kombination mit einer Elastschicht
GB1431618A (en) 1973-07-19 1976-04-14 Waagner Biro Ag Tube mill
EP1479442A2 (fr) 2003-05-20 2004-11-24 B & B S.r.l. Broyeur tubulaire avec revêtement interieur spécial
WO2007054959A1 (fr) 2005-11-08 2007-05-18 Tega Industries Limited Éléments d’impact et processus pour les fabriquer
EP1810752A1 (fr) 2006-01-18 2007-07-25 B & B S.r.l. Revêtement pour broyeur tubulaire
EP1990086A1 (fr) 2007-05-08 2008-11-12 B & B s.r.l. Revêtement de mélangeur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155215A (en) 1936-02-27 1939-04-18 Beament Thomas Geoffrey Method of producing composite wear-resisting bodies
DE2061554A1 (de) 1969-12-16 1971-07-15 Trelleborgs Gummifabnks Aktiebolag, Trelleborg (Schweden) Verschleißschutzkorper aus Hartmetall oder keramischem Material in Kombination mit einer Elastschicht
GB1431618A (en) 1973-07-19 1976-04-14 Waagner Biro Ag Tube mill
EP1479442A2 (fr) 2003-05-20 2004-11-24 B & B S.r.l. Broyeur tubulaire avec revêtement interieur spécial
WO2007054959A1 (fr) 2005-11-08 2007-05-18 Tega Industries Limited Éléments d’impact et processus pour les fabriquer
EP1810752A1 (fr) 2006-01-18 2007-07-25 B & B S.r.l. Revêtement pour broyeur tubulaire
EP1990086A1 (fr) 2007-05-08 2008-11-12 B & B s.r.l. Revêtement de mélangeur

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2526210B1 (fr) * 2010-01-19 2015-01-07 Tega Industries Limited Tambour mélangeur pour haut fourneau
EP2644276A1 (fr) 2012-03-27 2013-10-02 Sandvik Intellectual Property Ab Système d'élément d'usure
WO2013143900A1 (fr) 2012-03-27 2013-10-03 Sandvik Intellectual Property Ab Système d'élément d'usure
CN104203420A (zh) * 2012-03-27 2014-12-10 山特维克知识产权股份有限公司 磨损元件系统
US9272286B2 (en) 2012-03-27 2016-03-01 Sandvik Intellectual Property Ab Wear element system
ITMO20120152A1 (it) * 2012-06-11 2013-12-12 Certech S P A A Socio Unico Procedimento per la realizzazione di pannelli antiusura.
EP2674221A1 (fr) * 2012-06-11 2013-12-18 Certech S.P.A. A Socio Unico Procédé de réalisation de panneaux résistant à l'usure
EP2698204A3 (fr) * 2012-08-13 2014-04-09 Sandvik Intellectual Property AB Cassette de protection contre l'usure de trémie d'alimentation de broyeur
WO2014072135A1 (fr) * 2012-11-08 2014-05-15 Sandvik Intellectual Property Ab Cassette de protection contre l'usure d'une trémie d'alimentation de concasseur
WO2016116837A1 (fr) * 2015-01-19 2016-07-28 Flsmidth A/S Système de panneaux résistant à l'usure avec imbrication
US10543985B2 (en) 2015-01-19 2020-01-28 Flsmidth A/S Interlocking wear-resistant panel system
CN110339913A (zh) * 2019-08-20 2019-10-18 安徽科雷伯格胶辊有限公司 一种金属矿半自磨球磨机衬板

Also Published As

Publication number Publication date
ITMI20091338A1 (it) 2011-01-29

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