EP3584013A1 - Segment de tamisage pour une essoreuse à panier-tamis - Google Patents

Segment de tamisage pour une essoreuse à panier-tamis Download PDF

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Publication number
EP3584013A1
EP3584013A1 EP18000537.3A EP18000537A EP3584013A1 EP 3584013 A1 EP3584013 A1 EP 3584013A1 EP 18000537 A EP18000537 A EP 18000537A EP 3584013 A1 EP3584013 A1 EP 3584013A1
Authority
EP
European Patent Office
Prior art keywords
sieve
segment
basket
outlet
inlet
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.)
Granted
Application number
EP18000537.3A
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German (de)
English (en)
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EP3584013B1 (fr
Inventor
Horst Dietschreit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siteg Siebtechnik GmbH
Siebtechnik GmbH
Original Assignee
Siteg Siebtechnik GmbH
Siebtechnik GmbH
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 Siteg Siebtechnik GmbH, Siebtechnik GmbH filed Critical Siteg Siebtechnik GmbH
Priority to EP18000537.3A priority Critical patent/EP3584013B1/fr
Priority to PCT/EP2019/000187 priority patent/WO2019242877A1/fr
Publication of EP3584013A1 publication Critical patent/EP3584013A1/fr
Application granted granted Critical
Publication of EP3584013B1 publication Critical patent/EP3584013B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/18—Rotary bowls formed or coated with sieving or filtering elements

Definitions

  • the invention relates to a sieve segment for mounting in a conical carrying basket of a sieve centrifuge and for forming a sieve basket formed from a plurality of sieve segments within the carrying basket of a sieve centrifuge with an inlet side and an outlet side, the sieve segment corresponding to an angular section of the conical shape of the carrier basket from an inlet edge to Arrangement on the inlet side of the screen centrifuge extended in the transport direction of the screened material towards a wider outlet edge for arrangement on the outlet side of the screen centrifuge.
  • Sieve segments of this type are known. From the EP 1 827 700 B1 and the EP 2 907 579 A1 conical baskets with sieve segments are known.
  • the material to be dried by means of the sieve centrifuge is introduced at the inlet side of the sieve centrifuge, ie at the smaller diameter of the conical carrier, and is transported due to the machine dynamics in the direction of transport to the outlet side of the sieve centrifuge at the larger diameter of the conical carrier.
  • a disadvantage of the known sieve segments is that they are often used in the material feed zone due to the high wear of the sieve segments must be replaced, other areas of the sieve segments are not yet so worn out at this time and could still be used over a further period.
  • the material feed zone means the area of the sieve segments which faces the inlet side of the sieve centrifuge.
  • the object of the invention is therefore to develop a sieve segment for a sieve centrifuge of the type mentioned at the outset in such a way that this allows optimum utilization with regard to its service life.
  • the sieve segment for mounting in a conical carrying basket of a sieve centrifuge and for forming a sieve basket formed from a plurality of sieve segments within the carrying basket of a sieve centrifuge with an inlet side and an outlet side, the sieve segment being corresponding to an angular section of the conical shape of the carrier basket from an inlet edge to Arrangement on the inlet side of the sieve centrifuge in the transport direction of the sieve material is extended to a wider outlet edge for arrangement on the outlet side of the sieve centrifuge, it is that the sieve segment in the transport direction of the sieve material is formed in several parts from at least two segment parts which can be assembled independently of one another, the sieve segment at least one Has inlet segment part with the inlet edge for arrangement on the inlet side and an outlet segment part with the wider outlet edge for arrangement on the outlet side, in particular that the sieve segment in transport direction of the screenings is formed in two parts.
  • the screen centrifuge can in particular be a screen screw, push or vibrating screen centrifuge.
  • transport direction the axial direction along the axis of the conical Carrying basket of the screen centrifuge from the inlet side on the small diameter to the outlet side on the large diameter.
  • the material to be dried by means of the screen centrifuge is placed on the inlet side of the screen centrifuge, i.e. introduced on the smaller diameter of the conical carrier and transported due to the machine dynamics in the transport direction to the outlet side of the screen centrifuge on the larger diameter of the conical carrier.
  • the sieve segment has an inlet edge for arrangement on the inlet side of the sieve centrifuge and a wider outlet edge for arrangement on the outlet side of the sieve centrifuge compared to the inlet edge.
  • the sieve segment parts widen from the inlet side in the transport direction of the material to be sieved to the outlet side.
  • the inlet segment part and the outlet segment part each have an inlet edge and an outlet edge opposite the inlet edge.
  • the inlet edge of the inlet segment part corresponds to the inlet edge of the sieve segment facing the inlet side of the sieve centrifuge and thus the narrower of the two edges of the inlet segment part.
  • the outlet edge of the inlet segment part is thus wider than the inlet edge and is directed towards the inlet edge of the outlet segment part.
  • the outlet edge of the outlet segment part corresponds to the outlet edge of the sieve segment.
  • the outlet edge of the outlet segment part is accordingly wider than the inlet edge of the outlet segment part.
  • the inlet segment part and the outlet segment part can be geometrically matched to one another, so that both form a complete sieve segment following one another in the transport direction.
  • the outlet edge of the inlet segment part can have almost the same, in particular the same width as the inlet edge of the corresponding outlet segment part, so that in the transport direction of the screened material, in particular, is almost seamless Transition between the inlet segment part and the outlet segment part is made possible.
  • further segment parts can be arranged between the inlet segment part and the outlet segment part, which are geometrically coordinated with the adjacent segment parts in order to enable an in particular almost seamless transition between the adjacent segment parts.
  • the sieve segment can be formed in three parts or four parts or five parts or n parts in the transport direction.
  • the sieve segment in the transport direction of the material to be sieved is made up of several parts from at least two segment parts that can be assembled independently of one another, the sieve segment having at least one inlet segment part and one outlet segment part, means that the inlet segment part that is usually worn out after shorter use can be replaced without the corresponding outlet segment part, which in particular has not yet been worn exchange. Conversely, however, it is also possible to replace the outlet segment part without replacing the corresponding inlet segment part. In this way, the useful life of the individual segment parts and thus the sieve segments as a whole is increased and the respective service life is optimally utilized.
  • material feed zone denotes that area of the sieve segment on the inlet side of the sieve centrifuge.
  • the feature that the at least two segment parts can be assembled independently of one another means that at least a first of the two Segment parts can be removed and exchanged without also replacing the second of the two segment parts, but instead continue to use the second segment part after the exchange of the first segment part.
  • the core of the invention is the interchangeability of the individual sieve segment parts independently of one another in order to be able to optimally use the respective service life.
  • segment parts in particular the inlet segment part and the outlet segment part
  • segment parts, in particular the inlet segment part and the outlet segment part can have different or the same gap widths.
  • segment parts, in particular the inlet segment part and the outlet segment part can have different or the same material thicknesses.
  • the segment parts, in particular the inlet segment part and the outlet segment part can have different or identical coatings and / or wear protection.
  • the sieve segments can be slotted sieve segments or milled sieve segments or laser-cut and / or water jet-cut sieve segments.
  • the sieve segments can be slotted in the circumferential direction and / or in the axial direction and / or at an angle to the axial direction.
  • different slot directions of the slots in the circumferential direction and / or in the axial direction and / or at an angle with respect to the axial direction can be combined in the sieve segments.
  • the inlet segment part can have a share of 1 percent up to 10% or up to 20% or up to 30% or up to 40% or up to 50% or up to 60% or up to 70% or up to 80 % or up to 90% of the extent of the sieve segment in the transport direction of the material to be sieved, the portion being able to assume any value in this interval.
  • the outlet segment part can accordingly have a proportion of 1 Percent to 90% of the extent of the sieve segment extend in the transport direction of the material to be sieved, the portion being able to assume any value in this interval.
  • the division of the extent of the sieve segment in the transport direction of the material to be sieved between the inlet segment part and the outlet segment part is particularly preferably 1 ⁇ 4 to 1 ⁇ 2 to 1 ⁇ 2 to 1 ⁇ 2.
  • the carrying basket can have a plurality of recesses for the removal of the, in particular liquid, substance separated from the screenings, which are in particular arranged uniformly distributed over the carrying basket.
  • Such recesses can be of the same or different sizes.
  • the inlet segment part preferably has at least one, in particular hook-shaped, fastening element arranged on its underside for forming a positive and / or non-positive connection with the carrying basket, in particular with the underside facing the carrying basket. Accordingly, the inlet segment part has an underside facing the carrying basket, which is opposite its upper side, onto which the material to be sieved is placed.
  • the sieve basket which is composed of several sieve segments
  • the undersides of the inlet segment parts would form an outside of the sieve basket and the tops would form an inside the screen basket to which the screenings are placed.
  • the inlet segment part can have several, in particular two, fastening elements of this type. An undesirable displacement of the inlet segment parts can thus be avoided.
  • the inlet segment part can have fastening elements of this type at its end directed in the transport direction to the outlet side, the end of the inlet segment part being able to mean a proportion of 10 to 40 percent, in particular 10 percent or 20 percent or 30 percent or 40 percent of its extension in the transport direction.
  • a fastening element can in particular each have a recess reach through a recess in the carrier and / or reach behind the carrier and thus fix the inlet segment part to the carrier.
  • the hook-shaped fastening element (s) in particular can pass through a recess, in particular in each case one recess in the carrying basket and / or can engage behind the carrying basket.
  • the outlet segment part preferably has at least one, in particular hook-shaped, fastening element arranged on its underside to form a positive and / or non-positive connection with the carrying basket, in particular with the underside facing the carrying basket. Accordingly, the outlet segment part has an underside facing the carrying basket, which is opposite its top side, onto which the material to be screened is placed.
  • the undersides of the outlet segment parts When forming the screen basket, which is composed of a plurality of screen segments, the undersides of the outlet segment parts would together form an outside of the screen basket and the top sides would form an inside of the screen basket, to which the screenings would be placed.
  • the outlet segment part can have several, in particular two, fastening elements of this type. An undesirable displacement of the outlet segment parts can thus be avoided.
  • the particular hook-shaped fastening element (s) of the outlet segment part can pass through a recess, in particular in each case one recess, in the carrying basket and / or can engage behind the carrying basket.
  • the outlet segment part preferably has at least one tab on its underside which can be penetrated by at least one screw and can be detachably fixed by means of the screw, in particular can be fixed to a flange on the outlet side of the carrier basket.
  • the outlet segment part can be detachably and securely attached to the carrier basket.
  • the outlet segment part can extend over the entire width of the Have outlet segment part extending tab, which has one or more bores and / or elongated holes that can be penetrated by means of screws, in particular equidistantly arranged.
  • the outlet segment part can have a plurality of tabs distributed over the width, each with one or more bores and / or elongated holes.
  • the inlet segment part and / or the outlet segment part preferably have wear protection, in particular a coating, on their upper side, the upper side facing away from the carrying basket.
  • the inlet segment part and the outlet segment part are preferably designed such that they can be releasably connected to one another in a form-fitting and / or non-positive manner. For example, this can be done by means of a clip connection and / or a clamp connection and / or a snap connection and / or a screw connection.
  • the inlet segment part and the outlet segment part can be designed in the sense of a plug-socket pairing to form a positive connection.
  • the sieve basket is formed from 4 to 12 sieve segments according to the invention, in particular from 6 sieve segments each consisting of at least one inlet segment part and one outlet segment part.
  • the sieve segments in particular the inlet segment parts and / or the outlet segment parts on the sides on which two adjacent sieve segments, in particular two adjacent inlet segment parts and / or two adjacent outlet segment parts adjoin, can be integrally connected to one another, in particular welded and / or positively connected, or free of connections or fortifications.
  • a sieve basket for fastening in a conical support basket of a sieve centrifuge the sieve basket expanding in accordance with the conical shape of the support basket from an inlet diameter for arrangement on the inlet side of the sieve centrifuge in the transport direction of the sieve material to an outlet diameter for arrangement on the outlet side of the sieve centrifuge, is formed in several parts, in particular in two parts, at least from an inlet cone with the inlet diameter for arrangement on the inlet side of the sieve centrifuge and at least one outlet cone with the outlet diameter for arrangement on the outlet side of the sieve centrifuge, in particular the inlet cone can consist of a plurality of inlet segment parts welded together and / or the outlet cone be formed from a plurality of outlet segment parts welded together.
  • a sieve basket is provided analogously to the sieve segment according to the invention, which enables greater flexibility with regard to the possible utilization of the creep life of different areas of the sieve basket.
  • the fact that the strainer in the area of the material feed zone wears out faster than the area of the strainer basket distant from the material feed zone is met in a favorable manner, particularly with regard to assembly, material and costs.
  • the inlet cone and the outlet cone can be geometrically matched to one another, so that both form a complete screen basket following one another in the transport direction.
  • the inlet cone and / or outlet cone can in particular have hook-shaped fastening elements for fastening to the carrier basket on their underside facing the carrier basket.
  • the outlet cone on its underside facing the carrying basket can have at least one tab which can be penetrated by at least one screw and can be detachably fixed by means of the screw, in particular can be fixed on a flange on the outlet side of the carrying basket.
  • the outlet cone and / or inlet cone can have wear protection, in particular a coating, on their upper side facing away from the carrying basket, the upper side facing away from the carrying basket.
  • the outlet cone and / or inlet cone can be designed such that they can be releasably connected to one another in a form-fitting and / or non-positive manner. For example, this can be done by means of a clip connection and / or a clamp connection and / or a snap connection and / or a screw connection.
  • such a screen centrifuge can have a drive unit for translatory and / or rotary movement of the carrier basket and / or a sieve screw running within the carrier basket.
  • such a screen centrifuge can also have at least one housing and / or at least one line for transporting the material to be screened into the screen basket and / or at least one washing line for introducing a washing solution, in particular an acid and / or an alkali, into the screen basket and / or at least in each case a container for collecting the material separated by the sieve centrifuge.
  • a sieve centrifuge is provided analogously to the sieve segment according to the invention, which enables greater flexibility with regard to the possible utilization of the service life of different areas of the sieve segments.
  • the fact that the sieve segments in the area of the material feed zone wear out faster than the area of the sieve segments distant from the material feed zone is met in a favorable manner, in particular with regard to assembly, material and costs.
  • the carrier basket preferably has an annular groove on a flange on the inlet side, in which the inlet segment parts lie in a form-fitting manner.
  • this groove can form a circumferential or segmented contact shoulder which engages behind and / or engages over the inlet segment parts.
  • the sieve segments in particular the inlet segment parts and / or the outlet segment parts, on the sides on which two adjacent sieve segments, in particular two adjacent inlet segment parts and / or two adjacent outlet segment parts are adjacent, are preferably cohesive, in particular welded and / or positively connected or free of connections or fastenings.
  • At least one inlet segment part in particular at its end directed in the transport direction towards the outlet side, has at least one, in particular hook-shaped, fastening element on its underside facing the carrier basket, the fastening element reaching through a recess in the carrier basket and / or engaging behind the carrier basket and by means of which the inlet segment part is positively and / or or is non-positively fixed to the support cage.
  • each inlet segment part can have one or more such fastening elements, which each penetrate a recess in the support cage and / or can be distributed over the width of the inlet segment part.
  • the inlet segment part can have one or more such fastening elements on its end directed in the transport direction towards the outlet side, the end of the inlet segment part meaning a proportion of 10 to 40 percent, in particular 10 percent or 20 percent or 30 percent or 40 percent of its extension in the transport direction can be.
  • At least one outlet segment part preferably has at least one, in particular hook-shaped, fastening element on its side facing the carrier basket Underside, wherein the fastening element engages through a recess in the carrying basket and / or engages behind the carrying basket and by means of which the inlet segment part is fixed to the carrying basket in a positive and / or non-positive manner.
  • each outlet segment part can have one or more fastening elements of this type, which each pass through a recess in the support basket and / or can be distributed over the width of the outlet segment part.
  • the outlet segment part can have one or more such fastening elements at its end facing the inlet side of the screen centrifuge and thus towards the inlet segment part, with a portion of 10 to 40 percent, in particular 10 percent or 20 percent or 30 percent or 40 percent of the end of the outlet segment part Extension in the direction of transport can be meant.
  • the inlet segment parts are preferably axially secured by the outlet segment parts.
  • one outlet segment part can secure one inlet segment part.
  • an outlet segment part can partially or entirely axially secure several inlet segment parts.
  • an inlet segment part of a plurality of outlet segment parts can also be axially secured.
  • the outlet segment parts can be mounted circumferentially offset in the conical support basket relative to the inlet segment parts.
  • the number of inlet segment parts can vary over the circumference from the number of outlet segment parts.
  • the sieve segments in particular the outlet segment parts, preferably protrude beyond the carrying basket on the outlet side.
  • the outlet segment parts can protrude beyond possible tabs arranged on the outlet segment parts, in particular screws, by means of which the tabs for fastening the outlet segment parts can be penetrated.
  • the carrier basket itself therefore always lies in the discharge shadow of the sieve segments, since these protrude beyond the carrier basket and the carrier basket as well on the outlet side Protect fasteners such as screws and tabs.
  • the basket itself and the fasteners are therefore not subject to any abrasion and therefore no increased wear.
  • the outlet segment parts can each have at least one tab on the underside facing the carrying basket, which can be penetrated by at least one screw, in particular a fastening screw, and by means of which the outlet segment parts are detachably fixed to a flange on the outlet side of the carrying basket, in particular that the tabs of the outlet segment parts Have bores and / or elongated holes, which are penetrated by screws, in particular fastening screws, and by means of which the outlet segment parts are detachably fixed to the carrier basket.
  • each outlet segment part can have a plurality of tabs on the underside facing the support basket and fix each sieve segment to the support basket at several points above the circumferential cut of the segment by means of screws.
  • at least one outlet segment part can have a tab running over the entire circumferential section of the sieve segment with a plurality of in particular equidistantly arranged bores and / or elongated holes and fix each sieve segment at several points above the circumferential section by means of screws on the carrier basket.
  • the tab (s) can be formed by flat iron.
  • the tab (s) can be welded to the outlet segment part.
  • At least one inlet segment part is detachably connected to one another with at least one outlet segment part, and / or non-positively, in particular by means of a clip connection and / or a clamp connection and / or a snap connection and / or a screw connection.
  • an inlet segment part of a sieve segment can be connected to the corresponding outlet segment part of the same sieve segment.
  • the outlet segment parts can each have at least one tab on their underside which is penetrated by at least one screw and is detachably fixed to a flange on the outlet side of the carrier basket by means of the screw.
  • Fig. 1 shows a perspective view of a carrier basket 10 of a screen centrifuge according to a first embodiment with six screen segments 12a + b according to the invention, each consisting of an inlet segment part 12b and an outlet segment part 12a.
  • the inlet side of the sieve centrifuge is on the side of the sieve centrifuge facing the image plane.
  • the outlet side of the screen centrifuge is in the view of Fig. 1 on the side facing out of the image plane.
  • the carrier basket 10 has a conical shape that widens from the inlet side to the outlet side.
  • the carrier basket 10 has a plurality of recesses 11. Through the recesses 11 in the conical support basket 10, the liquid removed from the material to be treated can be discharged to the environment.
  • the outlet segment parts 12b have a plurality of hook-shaped fastening elements 35b, which each pass through a recess 11 in the carrier basket 10 and thus engage behind the carrier basket 10.
  • the outlet segment parts 12a also have a plurality of hook-shaped fastening elements 35a, which likewise each pass through a recess 11 in the carrier basket 10 and thus engage behind the carrier basket 10.
  • the outlet segment parts 12a each have a tab 13 running over the entire width of the outlet segment parts, which are fastened to a flange of the carrier basket 10 by means of a plurality of screws 15.
  • the tabs 13 each have a plurality of elongated holes, so that the outlet segment parts 12a can be adjusted and positioned in the circumferential direction with regard to their position in relation to the support basket 10.
  • the elongated holes in the tabs 13 are penetrated by screws 15, which are screwed into corresponding threaded bores in the outlet-side flange of the support basket 10.
  • the inlet segment parts 12b and the outlet segment parts 12a can be installed independently of one another.
  • the inlet segment parts 12b lie in an annular groove on the inlet side of the screen centrifuge, which is shown in FIG Figure 5 is described in more detail.
  • the outlet segment parts 12a secure the inlet segment parts 12b axially in the sieve centrifuge.
  • a drive unit of the sieve centrifuge sets the carrying basket 10 in a rotational movement, so that a material to be sieved applied to the sieve basket is separated into several components, in particular dried, due to the centrifugal forces.
  • Fig. 2 shows a view of a second exemplary embodiment of a sieve segment according to the invention, the outlet segment part 12a having a tab 13 running over the entire width on the outlet side.
  • the tab 13 has a plurality of bores 14 which can be penetrated by screws and thus can be fastened to a flange on the outlet side of the carrier basket.
  • the outlet segment part 12a has a plurality of fastening elements 35a, which are hook-shaped and can each pass through a recess in the carrying basket and thus can reach behind the carrying basket.
  • the inlet segment part 12b also has a plurality of fastening elements 35b, which are hook-shaped and each penetrate a recess in the carrier basket and can therefore engage behind the carrier basket.
  • the fastening element 35b is arranged on the end of the inlet segment part 12b directed towards the outlet side.
  • the hook-shaped fastening elements 35a, 35b each form a positive connection with the carrier basket.
  • the outlet segment part 12a and the inlet segment part 12b are two separate components which can be assembled independently of one another.
  • the inlet segment part 12b is mounted in the carrier basket.
  • the outlet segment part 12a is then mounted in the support basket and secures the inlet segment part 12b in the axial direction.
  • the outlet segment part 12a must therefore first be dismantled, around the inlet segment part 12b to make it accessible.
  • the outlet segment part 12a since the outlet segment part 12a has a longer service life due to less abrasion than the inlet segment part 12b, the outlet segment part 12a can be reused and replaced after the replacement of the inlet segment part 12b.
  • Fig. 3 shows a view of the underside of the sieve segment facing the carrying basket Figure 2 , It can be seen here that both the inlet segment part 12b and the outlet segment part 12a each have two fastening elements 35b and 35a.
  • the outlet segment part 12a has an area 16 projecting beyond the tab 13.
  • Fig. 4 shows a side section through the basket of a screen centrifuge Fig. 1 , Details A and B are shown here, which are shown in the Figures 5 and 6 are shown enlarged.
  • a drive unit of the sieve centrifuge sets the carrying basket 10 in a rotational movement, so that a material to be sieved applied to the sieve basket is separated into several components, in particular dried, due to the centrifugal forces.
  • Fig. 5 shows an enlarged view of detail A.
  • Fig. 4 Here, the circumferential annular groove 17 on the flange of the support basket 10 on the inlet side can be clearly recognized.
  • the inlet segment part 12b is inserted into the groove 17 and is further fastened to the carrier basket by means of the fastening element 35b which passes through the recess 11 of the carrier basket 10 and thus engages behind the carrier basket 10. Furthermore, the inlet segment part 12b is axially secured by means of the outlet segment part. By inserting the inlet segment part 12b in the groove 17 and the fastening elements 35b, the inlet segment part 12b is fastened to the support basket 10 in a form-fitting manner.
  • Fig. 6 shows an enlarged view of detail B.
  • the outlet segment part 12a has a plurality of hook-shaped fastening elements 35a, which each pass through a recess 11 in the carrier basket 10 and thus engage behind the carrier basket 10.
  • the outlet segment part 12a has also a tab 13, which is fastened to the flange 18 of the support basket 10 on the outlet side by means of screws 15. It can also be seen that the outlet segment part 12a protrudes beyond the carrying basket 10 with its region 16 on the outlet side.
  • the carrying basket 10 and the screws 15 are thus protected from wear in the form of abrasion by the outlet segment part 12a, in that the material to be sieved which goes beyond the outlet side of the sieve centrifuge does not come into contact with the carrying basket 10.
  • the screws 15 as well as the tab 13 and the flange 18 of the carrier basket 10 thus lie in the discharge shadow of the outlet segment part 12a and are protected from abrasion by the region 16 protruding in the transport direction.
  • Fig. 7 shows a carrying basket of a screen centrifuge according to a third embodiment, wherein a plurality of screen segments 22a + b, each consisting of an inlet segment part 22b and an outlet segment part 22a, are arranged.
  • the inlet segment parts 22b each have a plurality of hook-shaped fastening elements 35b, which each pass through a recess 21 in the carrier basket 20 and thus engage behind the carrier basket 20.
  • the outlet segment parts 22a likewise have hook-shaped fastening elements 35a, which each pass through a recess 21 in the carrier basket 20 and thus engage behind the carrier basket 20.
  • the outlet segment parts 22a also each have a plurality of tabs 23, each of which is penetrated by a screw 25.
  • the outlet segment parts 22a are fastened to a flange of the carrier basket 20 by means of the screws 25.
  • the outlet segment parts 22a axially secure the corresponding inlet segment parts 22b to the support basket 20.
  • Fig. 8 shows a perspective view of a sieve segment after Fig. 7 , wherein bores 24 are also shown in the tabs 23. These bores 24 can be penetrated by fastening screws, by means of which the outlet segment part 22a is fastened to a flange of a carrier cage.
  • Fig. 9 shows a view of the underside of the sieve segment after Fig. 7 , Several tabs 23 are across the width of the outlet segment part 22a distributed.
  • the fastening elements 35b of the inlet segment part 22b and the fastening elements 35a of the outlet segment part 22a can also be seen.
  • Fig. 10 shows a perspective view of a sieve segment according to a fourth exemplary embodiment, the outlet segment part 32a having a tab 33 running over the entire width.
  • the tab 33 has a plurality of elongated holes 34 and bores which can be penetrated by means of screws and thus can be fastened to a flange of a carrier basket, so that the outlet segment part 32a can be fastened to the carrier basket.
  • the inlet segment part 32b at its end facing the outlet side has a hook-shaped fastening element 35b, by means of which the carrying basket can be gripped behind.
  • the sieve segment in the transport direction of the material to be sieved consists of two independently mountable segment parts, namely in each case an inlet segment part 12b, 22b, 32b and an outlet segment part 12a, 22a, 32a, so that the inlet segment part 12b, which is usually worn out after shorter use, 22b, 32b can be exchanged without replacing the corresponding not yet worn outlet segment part 12a, 22a, 32a.
  • the outlet segment part 12a, 22a, 32a without replacing the corresponding inlet segment part 12b, 22b, 32b.
  • the useful life of the individual segment parts is increased, so that assembly effort, material and costs are reduced. This enables greater flexibility with regard to the possible utilization of the creep life of the different areas of the sieve segments.

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  • Centrifugal Separators (AREA)
EP18000537.3A 2018-06-19 2018-06-19 Segment de tamisage pour une essoreuse à panier-tamis Active EP3584013B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18000537.3A EP3584013B1 (fr) 2018-06-19 2018-06-19 Segment de tamisage pour une essoreuse à panier-tamis
PCT/EP2019/000187 WO2019242877A1 (fr) 2018-06-19 2019-06-17 Segment de tamis pour centrifugeuse à tamis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18000537.3A EP3584013B1 (fr) 2018-06-19 2018-06-19 Segment de tamisage pour une essoreuse à panier-tamis

Publications (2)

Publication Number Publication Date
EP3584013A1 true EP3584013A1 (fr) 2019-12-25
EP3584013B1 EP3584013B1 (fr) 2021-08-11

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EP18000537.3A Active EP3584013B1 (fr) 2018-06-19 2018-06-19 Segment de tamisage pour une essoreuse à panier-tamis

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EP (1) EP3584013B1 (fr)
WO (1) WO2019242877A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1821684A (en) * 1931-01-06 1931-09-01 John A Wiener Rotary pulp screen
GB1601831A (en) * 1978-05-17 1981-11-04 Greening N Ltd Centrifuge apparatus
EP1827700B1 (fr) 2004-11-30 2013-12-18 Siebtechnik GMBH Panier de centrifugeuse destine a une centrifugeuse a tamis
US20140076796A1 (en) * 2012-09-14 2014-03-20 Bilfinger Water Technologies, Inc. Variable geometry centrifugal basket
EP2907579A1 (fr) 2014-02-17 2015-08-19 Siebtechnik GmbH Panier pour essoreuse à panier-tamis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1821684A (en) * 1931-01-06 1931-09-01 John A Wiener Rotary pulp screen
GB1601831A (en) * 1978-05-17 1981-11-04 Greening N Ltd Centrifuge apparatus
EP1827700B1 (fr) 2004-11-30 2013-12-18 Siebtechnik GMBH Panier de centrifugeuse destine a une centrifugeuse a tamis
US20140076796A1 (en) * 2012-09-14 2014-03-20 Bilfinger Water Technologies, Inc. Variable geometry centrifugal basket
EP2907579A1 (fr) 2014-02-17 2015-08-19 Siebtechnik GmbH Panier pour essoreuse à panier-tamis

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