EP3925709B1 - Séparateur de force centrifuge doté d'une roue de séparateur spéciale - Google Patents

Séparateur de force centrifuge doté d'une roue de séparateur spéciale Download PDF

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Publication number
EP3925709B1
EP3925709B1 EP21190772.0A EP21190772A EP3925709B1 EP 3925709 B1 EP3925709 B1 EP 3925709B1 EP 21190772 A EP21190772 A EP 21190772A EP 3925709 B1 EP3925709 B1 EP 3925709B1
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EP
European Patent Office
Prior art keywords
separator
drum
classifier
centrifugal
wheel
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.)
Active
Application number
EP21190772.0A
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German (de)
English (en)
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EP3925709A1 (fr
Inventor
Sergio Alegre
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.)
Netzsch Feinmahltechnik GmbH
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Netzsch Feinmahltechnik GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging arrangements

Definitions

  • the length of the hub sleeve in the direction of the axis of rotation is greater than the length of the rim of the wheel disc.
  • the length of the hub sleeve in the direction of the axis of rotation is at least 30%, better at least 50% greater than the corresponding length of the rim.
  • a certain proportion of classifier air is additionally blown into the classifier space via the coarse material outlet 8 or the auxiliary air supply 9 arranged there, by means of a blower (not shown in the figure).
  • This auxiliary air supply is in Figure 1 symbolized by the small black arrow. This means that particularly fine material that has unintentionally fallen into the area of the coarse material outlet or unintentionally falls into this area threatened to fall, transported back into the sifting room. This leads to a significant improvement in the quality of the screening results.
  • the classifier wheel 7 essentially consists of a classifier drum 14 with a classifier wheel shaft 11, which forms its axis of rotation.
  • the rim is preferably provided on its outer peripheral surface with one or more sealing grooves 23, which form part of the labyrinth-like seal with which the classifier wheel is sealed on its end faces from the fine material outlet 6 - which will be discussed in more detail later.
  • the preferred design of the spokes 17 can be seen from the rear part of the Figure 6 comprehend.
  • the spokes 17 preferably extend in a purely radial direction from the hub sleeve 16 to the rim rim 18.
  • Each spoke 17 is just as long as the latter where it is connected to the hub sleeve 16, measured in the direction of the rotation axis L.
  • Each spoke 17 tapers towards the rim 18. This means that each of the spokes usually protrudes into the interior of the sifter drum 14 and protrudes outwards on its opposite side in the direction of the axis of rotation L over the rim rim 18. In this way, the spokes have a relatively large area and can therefore effectively help to get the classifier air to rotate.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Centrifugal Separators (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Cyclones (AREA)

Claims (15)

  1. Séparateur centrifuge (1) ayant un carter (2) et une roue (7) qui tourne dans le carter (2), la roue (7) comprenant un tambour (14) et un arbre de roue (11) qui forme son axe de rotation, et le carter (2) ayant au moins une sortie de matériau grossier (8), caractérisé en ce qu'un élément de guidage (28) est disposé dans la région de la du moins une sortie de matériau grossier (8),
    l'élément de guidage (28) étant disposé à une distance X de la surface latérale intérieure de la section du carter entourant le tambour (14)
    et étant conçu de telle manière que le matériau à être séparé, qui s'écoule le long de ladite surface latérale intérieure à une distance radiale ≤ X, passe sous l'élément de guidage (28) et est ensuite évacué dans la sortie de matériau grossier (8),
    et le matériau à être séparé, qui s'écoule le long de ladite surface latérale intérieure à une distance radiale >X, est dévié radialement vers l'intérieur vers le tambour (14).
  2. Le séparateur centrifuge (1) selon la revendication 1, caractérisé en ce que l'élément de guidage (28) couvre partiellement la sortie de matériau grossier (8) dans la direction de l'écoulement.
  3. Le séparateur centrifuge (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la au moins une sortie de matériau grossier (8) est disposée au-dessous du tambour (14) et l'air est injecté à la sortie de matériau grossier (8) et s'écoule via le tambour (14).
  4. Le séparateur centrifuge (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le rapport NL/ND entre la longueur efficace NL du tambour (14) et le diamètre extérieur efficace maximum ND du tambour (14) est ≥ 2.
  5. Le séparateur centrifuge (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que des aubes (26) font saillie radialement vers l'intérieur à partir de la surface latérale intérieure du tambour (14).
  6. Le séparateur centrifuge (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que des anneaux de support qui sont fermés dans le sens circonférentiel font saillie radialement vers l'intérieur à partir de la surface latérale intérieure du tambour (14).
  7. Le séparateur centrifuge (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le tambour (14) est constitué de plusieurs éléments de tambour (14a; 14b) qui sont disposés l'un derrière l'autre le long de l'axe commun de rotation (L) et reliés ou vissés l'un à l'autre.
  8. Le séparateur centrifuge (1) selon la revendication 7, caractérisé en ce que chaque élément de tambour (14a; 14b) forme sur ses faces frontales une bride de fixation annulaire en forme de disque (24a; 24b; 24c) qui s'étend, par rapport à la surface latérale intérieure de l'élément de tambour (14a; 14b), d'un montant (H) radialement vers l'intérieur.
  9. Le séparateur centrifuge (1) selon l'une des revendications 7 ou 8, caractérisé en ce qu'un anneau intermédiaire (25) est installé au milieu du tambour (14) entre deux éléments du tambour (14a, 14a).
  10. Le séparateur centrifuge (1) selon l'une des revendications 7 à 9 en combinaison avec la revendication 4, caractérisé en ce que l'anneau intermédiaire (25) comporte des aubes (26) faisant saillie radialement vers l'intérieur à partir de sa surface latérale intérieure.
  11. Le séparateur centrifuge (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les disques de roue (15) sont constitués chacun d'une jante (18) qui est reliée à un manchon de moyeu (16) via au moins deux rayons (17).
  12. Le séparateur centrifuge (1) selon la revendication 11, caractérisé en ce que la première partie et la deuxième partie de l'arbre de roue (11) forment chacune une bride à disque (19) qui fait saillie radialement vers l'extérieur et qui repose sur la surface annulaire frontale du manchon de moyeu (16) associé à cette partie de l'arbre de roue (11) ou est vissée au manchon de moyeu (16), la surface annulaire frontale faisant face à l'intérieur du tambour (14).
  13. Le séparateur centrifuge (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la vitesse nominale du tambour est telle que la valeur cible de 160 m/s au diamètre extérieur du tambour est atteinte ou dépassée.
  14. Le séparateur centrifuge (1) selon la revendication 2, caractérisé en ce que la position de l'élément de guidage peut être modifiée dans le sens de rotation et dans le sens opposé à la rotation.
  15. Le séparateur centrifuge (1) selon la revendication 8, caractérisé en ce que du moins une bride de fixation (24) de chaque élément du tambour (14a ; 14b) est biseautée sur au moins 25% de son étendue radiale.
EP21190772.0A 2018-12-13 2019-11-25 Séparateur de force centrifuge doté d'une roue de séparateur spéciale Active EP3925709B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018132155.4A DE102018132155B3 (de) 2018-12-13 2018-12-13 Fliehkraftsichter mit speziellem sichterrad
EP19211099.7A EP3677348B1 (fr) 2018-12-13 2019-11-25 Séparateur de force centrifuge doté d'une roue de séparateur spéciale

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP19211099.7A Division EP3677348B1 (fr) 2018-12-13 2019-11-25 Séparateur de force centrifuge doté d'une roue de séparateur spéciale
EP19211099.7A Division-Into EP3677348B1 (fr) 2018-12-13 2019-11-25 Séparateur de force centrifuge doté d'une roue de séparateur spéciale

Publications (2)

Publication Number Publication Date
EP3925709A1 EP3925709A1 (fr) 2021-12-22
EP3925709B1 true EP3925709B1 (fr) 2023-10-18

Family

ID=68652293

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21190772.0A Active EP3925709B1 (fr) 2018-12-13 2019-11-25 Séparateur de force centrifuge doté d'une roue de séparateur spéciale
EP19211099.7A Active EP3677348B1 (fr) 2018-12-13 2019-11-25 Séparateur de force centrifuge doté d'une roue de séparateur spéciale

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19211099.7A Active EP3677348B1 (fr) 2018-12-13 2019-11-25 Séparateur de force centrifuge doté d'une roue de séparateur spéciale

Country Status (11)

Country Link
US (2) US11278935B2 (fr)
EP (2) EP3925709B1 (fr)
CN (1) CN111318456B (fr)
BR (1) BR102019026628B1 (fr)
DE (1) DE102018132155B3 (fr)
DK (1) DK3925709T3 (fr)
ES (2) ES2966995T3 (fr)
FI (1) FI3925709T3 (fr)
HU (1) HUE064873T2 (fr)
PL (2) PL3925709T3 (fr)
RU (1) RU2728628C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113428561A (zh) * 2021-07-13 2021-09-24 湖南核三力技术工程有限公司 用于烟丝掺配系统的垂直落料缓冲装置

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Also Published As

Publication number Publication date
PL3925709T3 (pl) 2024-03-11
DE102018132155B3 (de) 2019-12-12
EP3677348A3 (fr) 2020-10-21
ES2966995T3 (es) 2024-04-25
US11607709B2 (en) 2023-03-21
ES2964042T3 (es) 2024-04-03
BR102019026628A2 (pt) 2020-06-23
CN111318456A (zh) 2020-06-23
FI3925709T3 (fi) 2024-01-11
EP3677348A2 (fr) 2020-07-08
EP3677348B1 (fr) 2023-09-06
RU2728628C1 (ru) 2020-07-30
US20210394237A1 (en) 2021-12-23
DK3925709T3 (da) 2024-01-22
EP3925709A1 (fr) 2021-12-22
CN111318456B (zh) 2023-03-24
US20200188959A1 (en) 2020-06-18
US11278935B2 (en) 2022-03-22
HUE064873T2 (hu) 2024-04-28
PL3677348T3 (pl) 2024-02-26
BR102019026628B1 (pt) 2024-03-05

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