EP1372858B1 - Dispositif pour amener un materiau - Google Patents

Dispositif pour amener un materiau Download PDF

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Publication number
EP1372858B1
EP1372858B1 EP02737910A EP02737910A EP1372858B1 EP 1372858 B1 EP1372858 B1 EP 1372858B1 EP 02737910 A EP02737910 A EP 02737910A EP 02737910 A EP02737910 A EP 02737910A EP 1372858 B1 EP1372858 B1 EP 1372858B1
Authority
EP
European Patent Office
Prior art keywords
strap belt
conveyor
double
vertical mill
belt
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 - Lifetime
Application number
EP02737910A
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German (de)
English (en)
Other versions
EP1372858A2 (fr
Inventor
Thomas Loesche
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.)
Loesche GmbH
Original Assignee
Loesche 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 Loesche GmbH filed Critical Loesche GmbH
Priority to DK02737910T priority Critical patent/DK1372858T3/da
Publication of EP1372858A2 publication Critical patent/EP1372858A2/fr
Application granted granted Critical
Publication of EP1372858B1 publication Critical patent/EP1372858B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices

Definitions

  • the invention relates to a device for feeding Material in a vertical mill with air flow promotion according to the preamble of the claim 1.
  • the invention is in particular for the material feed of containers and devices suitable in which the material stored, processed or processed at negative or positive pressure becomes.
  • a preferred area of application are grinding plants in which Raw material vertical mills with air flow conveyance, for example Airflow roller mills, with the help of conveyors and fed to a feeder for grinding becomes.
  • Fig. 1 shows a partial view of a grinding plant 2 in the area an airflow roller mill as a vertical mill 6 with Air flow promotion.
  • a feeding device for the material to be shredded Grist which consists of a silo 37 of a conveyor 43 is supplied is a cellular wheel sluice 45 used.
  • the rotary valve 45 is above one Classifying ceiling 46 of the vertical mill 6 arranged.
  • the regrind (not shown) passes through an inlet chute 47 in the grinding chamber 12 of the vertical mill 6.
  • Fig. 1 illustrates the considerable building height, the necessary structural engineering System parts and the length of the conveyor 43, which increase the total cost of the grinding plant.
  • From AT-PS 400 684 is a device for feeding Raw coal to a pressurized mill is known.
  • the feeder Around the pressure shock resistant parts to a minimum restrict, the feeder has a silo a first delivery line, then a feed bunker, a second delivery line, an intermediate bunker and a third Delivery line on.
  • the third conveyor line is a trough chain conveyor, which serves as an allocation organ and complete is arranged in a pressure shock-proof housing. About one that ends in the middle of the classifier's ceiling of the mill The raw coal enters the feed shaft from the third delivery line to the mill.
  • the entire feeder points due to the stacked bunkers and horizontal arranged, three delivery lines a relatively large height and requires a corresponding investment, Assembly and energy expenditure.
  • An elevator conveyor for bulk goods with two endless Conveyor belts that lie against each other at their longitudinal edges and at least one of them in a vertical area runs inside an air box; is from DE 27 26 038 C2 known.
  • the conveyor belts are attached to the air box Sealing strips and prestressing means are provided.
  • a double belt conveyor is known from DE 34 32 553 A1.
  • the shroud belt has longitudinal and transverse reinforcements on, between which indentations for admission of the goods to be funded.
  • the dents or funding areas are on the other side of the second flat belt of the conveyor belt completed.
  • continuous Longitudinal guides consist of U-shaped steel profile sections and provide the necessary seals of the funding areas.
  • the invention has for its object to provide a device for feeding material into a container, in particular raw material to be comminuted in a vertical mill, which has a particularly simple and cost-saving design, an optimized material task with a lower overall height of the system and reduced control technology Effort and an efficient grinding and classifying process.
  • a basic idea of the invention can be seen in as a feeding device, which is used to hold an end region a conveyor for the feed Material trained and with the recorded End area of the conveyor in the printing system a vertical mill with air flow conveyance, is included, a sandwich lock and as a conveyor a double belt conveyor with a double belt insert and the sandwich lock for side feeding and feeding the material in the area of a feed opening the housing of the vertical mill to arrange.
  • Material locks such as the two-flap or three-flap locks or cellular wheel locks, no longer required and significant cost savings in the area of construction, the mechanical equipment and related electrical equipment reached.
  • the device according to the invention permits lateral feeding and feeding of the Materials which saved about 7 to 8 m building height can be. Other advantages are with the particular airtight, continuous material conveying and feeding connected with the help of the double belt conveyor, whereby promoting horizontally, vertically and / or obliquely in each Tilt angle can be done.
  • a discontinuous material input is done with the conveyor task unit according to the invention a continuous material flow entry realizable. This results in opportunities for optimization a plant and especially a grinding and classifying process in a grinding plant, which leads to a reduction in energy consumption and to significant advantages in ecological Respect.
  • the sandwich lock is preferably with a gas and / or pressure-tight housing formed, which back of a container wall or a mill housing and via a feed opening with the grinding and / or The mill's visual space is connected.
  • the end area of the double belt conveyor reaching into the sandwich lock has pulleys for the lower and upper webbing.
  • the deflection drums are expedient complementary to the straps and such staggered in the sandwich lock that the Upper belt strap for releasing the material in the conveyor is arranged in front of the lower pulley.
  • the lower pulley serves as a dropping device for the Material and is so to the feed opening in the container or arranged in the vertical mill that the material into the feed opening and the container or the vertical mill arrives.
  • Labyrinth seals are expedient for the return upper webbing and for the returning lower webbing intended.
  • the one located between the slot openings Through opening is advantageously at least in an upper sealing area to adapt to a different arched upper webbing height adjustable educated.
  • sealing lamellae can be provided be which resilient or dragging on the upper webbing of the double webbing can be pressed.
  • the lower Belt strap is expediently relatively stable and with one constant trough for receiving the material. To also with the redirected and returned lower Webbing to maintain the trough-shaped formation it makes sense to arrange support rollers accordingly.
  • a labyrinth seal can be arranged.
  • the passage opening and the lower and the upper Slot opening can be made regardless of the seals used complementary to the cross section of the double webbing as well as the deflected lower and upper webbing his. It is particularly advantageous that through the Use of a double webbing and a sandwich lock the raw material falling freely in the area of a feed opening or fed to the container or grinding chamber can be. This can be done through an adjustable speed of the double webbing depending on the distance the raw material from the lower guide drum from the feed opening go directly to the middle of the mill.
  • the main advantages of the device according to the invention are less technical and machine-based Expenses for material supply due to the arrangement the sandwich lock above the grinding rollers in a side Area of the mill housing or in the connection area between the mill and classifier housing.
  • the manufacturing technology Effort and assembly effort for the Sandwich lock and the double belt conveyor are relative low.
  • Another advantage is that with the Double belt conveyor, which is horizontal, vertical and in each any angle of inclination can be arranged, a continuous material feed is guaranteed. In order to associated is a lower energy consumption of the facility and an optimized grinding and classifying process.
  • FIG. 2 The partial view of a grinding plant 2 shown in FIG. 2 has initially analogous to FIG. 1, which is in the prior art is described, an airflow roller mill as a vertical mill 6 with air flow promotion and silos 37, in which the in the vertical mill 6 material to be shredded is stored, on.
  • the feed device according to the invention has a conveying device a double belt conveyor 3 and as a feed device for that brought up with the double belt conveyor 3 Material (not shown) on the double belt conveyor 3 adjusted lock, which below is referred to as sandwich lock 5.
  • This sandwich lock 5 is gas and / or pressure tight in Area of a feed opening 11 (see Fig. 3) on the housing 10 of the vertical mill 6 attached.
  • FIG. 2 A comparison of the grinding plant of the prior art in Fig. 1 and the grinding plant of FIG. 2 with an inventive Material feed, which is a sandwich lock 5 and a double belt conveyor 3 which interacts with this shows that a significantly lower building height is achieved in the grinding plant 2 of FIG. 2.
  • the double belt conveyor 3 in the area of the silos 37 a lower horizontal conveying area 30 to which there is a vertical conveying area 31 connects, which over an upper horizontal conveying area 32 extends into the sandwich lock 5.
  • a lower horizontal conveying area 30 to which there is a vertical conveying area 31 connects which over an upper horizontal conveying area 32 extends into the sandwich lock 5.
  • FIG. 3 and FIG. 4 illustrate the design and arrangement a sandwich lock 5 on a vertical mill 6 with air flow conveyance, of the vertical mill 6 only one Area of the housing 10 is shown.
  • the sandwich lock 5 is box-shaped and has a housing 8 with an end face 28, which with a Passage opening 23 for the double webbing 13 with therein enclosed and in particular sealed airtight Material 4 (see Fig. 4).
  • An end region 7 of the double belt conveyor 3 is arranged within the housing 8 and thus in the printing system of the sandwich lock 5 and Vertical mill 6 included via the feed opening 11.
  • the sandwich lock 5 is shown in FIG. 3 without a front side wall, around the formation of the end region 7 and the deflection of the To show double webbing 13.
  • the double webbing 13 has a lower webbing 14 and upper webbing 15.
  • a recording room 20 for the material 4 (Fig. 4) are the lower 14 and that upper webbing 15 trough-shaped and lie in Area of material-free overlap areas on the edge 19 mirror-symmetrical to one another, so that an im Cross section biconvex receiving space 20 is formed (see also Fig. 4).
  • suitable sealing devices which expediently arranged in front of the sandwich lock 5 (not shown), the double webbing 13 is preferred sealed several times so that material side a false air entry in the sandwich lock 5 and in the Vertical mill 6 can be largely excluded.
  • the end area accommodated within the sandwich lock 5 7 of the double belt conveyor 3 has a lower deflection drum 17, which is arranged relatively close to the feed opening 11 is.
  • An upper pulley 18 for the upper Webbing 15 is offset, so that on the lower, continued webbing 14 overlying material (not shown) to one through the deflection drum 17th formed drop point and depending on the speed of the double webbing 13 and depending on the distance to Task opening 11 thrown almost centrally into the vertical mill 6 becomes.
  • the guide drums 17, 18 are formed. According to the almost flat, material-free overlapping areas 19 are the deflection drums 17, 18 with circular cylindrical End regions 21 provided while between the circular cylindrical End areas 21 complementary to the trough-shaped Belt straps 14, 15 the guide drums 17, 18 almost are designed as a single-shell hyperboloid.
  • seals of which in Fig. 3 only an upper sealing area 34 a Seal 33 of the passage opening 23 and a lower sealing area 35 are shown.
  • the upper seal area 34 has height-adjustable sealing slats, which are resilient or lie abrasively on the upper sealing tape 15.
  • Lower slot opening seals 24 and the upper slot opening 25 are not shown. This Seals and the lower sealing area 35 can in particular be designed as a labyrinth seal.
  • Fig. 4 shows the formation and arrangement of the double webbing 13 between the upper, deflected webbing 15 and the lower, deflected webbing 14.
  • the upper deflected webbing In principle, 15 does not require pulleys.
  • the double webbing 13 between the redirected lower and upper Webbing 14, 15 has in the cross-section biconvex receiving space 20 on the regrind 4 to be fed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Disintegrating Or Milling (AREA)
  • Vending Machines For Individual Products (AREA)
  • Centrifugal Separators (AREA)
  • Crushing And Grinding (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (16)

  1. Dispositif pour introduire un matériau dans un moulin vertical (6) à transport par courant d'air,
    avec un dispositif de transport (3) pour le transport du matériau (4) et avec un dispositif d'introduction (5) par l'intermédiaire duquel le matériau (4) peut être introduit dans le moulin vertical (6), le dispositif de transport (3) étant placé avec une partie d'extrémité (7) dans le dispositif d'introduction (5) et le dispositif d'introduction (5) et la partie d'extrémité (7) du dispositif de transport (3) qui s'y trouve étant intégrés au système de pression du moulin vertical (6),
    caractérisé en ce qu'on utilise comme dispositif de transport un convoyeur (3) à bandes jumelées et comme dispositif d'introduction un sas (5) de type sandwich,
    en ce que le convoyeur (3) à bandes jumelées comporte un tapis (13) à bandes jumelées avec une bande inférieure (14) et une bande supérieure (15) entre lesquelles du matériau à broyer (4) est emprisonné en tant que matériau (4) à introduire, et
    en ce que le convoyeur (3) à bandes jumelées comporte, dans la partie d'extrémité (7) placée dans le sas (5) de type sandwich, un tambour de renvoi inférieur (17) pour la bande inférieure (14) et un rouleau de renvoi supérieur (18) pour la bande supérieure (15), le rouleau de renvoi supérieur (18) étant placé avant le rouleau de renvoi inférieur (17) dans la direction de transport,
    en ce que le sas (5) de type sandwich est fixé latéralement sur le carter (10) du moulin vertical (6) et
    en ce qu'une ouverture d'introduction (11) est formée dans le carter (10) du moulin vertical (6) dans la direction de déversement du produit à broyer (4).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le carter (8) du sas (5) de type sandwich comporte une ouverture de passage (23) pour le tapis (13) à bandes jumelées avec le matériau (4) emprisonné à l'intérieur et des ouvertures fendues inférieure (24) et supérieure (25) pour la bande inférieure (14) et la bande supérieure (15) de retour, et en ce que l'ouverture de passage (23) et les ouvertures fendues supérieure (24) et inférieure (25) sont munies de joints (33, 34, 35) afin de maintenir le niveau de la pression dans le sas (5) de type sandwich et le moulin vertical (6).
  3. Dispositif selon la revendication 1,
    caractérisé en ce que l'ouverture de passage (23) et les ouvertures fendues inférieure (24) et supérieure (25) sont adaptées chacune au contour du tapis (13) à bandes jumelées avec le matériau (4) emprisonné à l'intérieur, respectivement à la bande inférieure (14) renvoyée et à la bande supérieure (15).
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le matériau (4) à introduire est emprisonné d'une manière étanche à l'air entre les bandes inférieure (14) et supérieure (15) au moins dans la partie d'extrémité (7) du convoyeur à bandes jumelées (3) située dans le sas (5) de type sandwich.
  5. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'au niveau du bord, le tapis (13) à bandes jumelées comporte des zones de chevauchement (19) sans matériau et peut être fermé hermétiquement afin d'éviter un mauvais apport d'air dans le sas (5) de type sandwich et le moulin vertical (6).
  6. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que des dispositifs d'étanchéité sont prévus pour rendre hermétique le tapis (13) à bandes jumelées avec le produit à broyer (4) emprisonné à l'intérieur et en ce que les dispositifs d'étanchéité, qui sont conformés en joints à rouleaux, joints frottants ou joints à brosse, sont placés avant le sas (5) de type sandwich (5).
  7. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'une dépression ou une surpression règne dans le moulin vertical (6) et le sas (5) de type sandwich, et le sas (5) de type sandwich comporte un carter (8) qui est réalisé hermétique au gaz et/ou à la pression.
  8. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la bande inférieure (14) et la bande supérieure (15) sont réalisées en forme de bac et sont placées l'une sur l'autre selon une symétrie spéculaire avec leurs zones de chevauchement (19) dépourvues de matériau, lesquelles sont réalisés quasi planes, de telle manière qu'un logement (20) de section biconvexe soit formé pour le produit à broyer (4).
  9. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que les tambours de renvoi (17, 18) du convoyeur (3) à bandes jumelées sont réalisés complémentaires des bandes (14, 15) en forme de bacs et présentent pratiquement la forme d'un hyperboloïde à une nappe entre des parties frontales (21) cylindriques.
  10. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'au moins au niveau de la bande inférieure (14) renvoyée, il est prévu des rouleaux d'appui (26) pour maintenir la configuration en bac.
  11. Dispositif selon l'une quelconque des revendications 2 à 10,
    caractérisé en ce que le joint (33) de l'ouverture de passage (23) destinée au tapis (13) à bandes jumelées comporte des zones d'étanchéité supérieure (34) et inférieure (35), et en ce que la zone d'étanchéité supérieure (34) est réglable en hauteur et peut être adaptée à la courbure de la bande supérieure (15) et une zone d'étanchéité (35) constante est prévue pour la bande inférieure (14).
  12. Dispositif selon la revendication 11,
    caractérisé en ce que la zone d'étanchéité supérieure (34) réglable en hauteur du joint (33) comporte des lamelles d'étanchéité qui s'appuient élastiquement ou avec frottement sur la bande supérieure (15) du tapis (13) à bandes jumelées, et en ce que la zone d'étanchéité inférieure (35) du joint (33) et les joints destinés aux ouvertures fendues inférieure (24) et supérieure (25) sont réalisés en joints à labyrinthe.
  13. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le convoyeur (3) à bandes jumelées comporte une zone de transport inférieure (30) quasi horizontale pour recevoir des matières premières provenant par exemple de silos (37), une zone de transport verticale (31) et une zone de transport supérieure (32) quasi horizontale, et en ce que la zone de transport supérieure horizontale (32) va jusque dans le sas (5) de type sandwich.
  14. Dispositif selon l'une quelconque des revendications 2 à 13,
    caractérisé en ce que le sas (5) de type sandwich comporte un carter (8) en forme de boíte avec une face frontale (28) qui est opposée à l'ouverture d'introduction (11) et dans lequel sont formées l'ouverture de passage (23) et les ouvertures fendues inférieure (24) et supérieure (25).
  15. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le produit à broyer (4) introduit dans le tapis (13) à bandes jumelées et déversé dans l'ouverture d'introduction (11) arrive en chute libre ou sous conduite forcée dans la chambre de broyage (12) du moulin vertical (6).
  16. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la vitesse du tapis (13) à bandes jumelées est réglable en fonction de la distance entre le tambour de renvoi inférieur (17) et l'ouverture d'introduction (11), de telle sorte que le produit à broyer (4) arrive directement au centre du moulin.
EP02737910A 2001-04-03 2002-04-02 Dispositif pour amener un materiau Expired - Lifetime EP1372858B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK02737910T DK1372858T3 (da) 2001-04-03 2002-04-02 Indretning til materialetilförsel

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10116550 2001-04-03
DE10116550A DE10116550B4 (de) 2001-04-03 2001-04-03 Einrichtung zum Zuführen von Material
PCT/EP2002/003636 WO2002081090A2 (fr) 2001-04-03 2002-04-02 Dispositif pour amener un materiau

Publications (2)

Publication Number Publication Date
EP1372858A2 EP1372858A2 (fr) 2004-01-02
EP1372858B1 true EP1372858B1 (fr) 2004-12-01

Family

ID=7680189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02737910A Expired - Lifetime EP1372858B1 (fr) 2001-04-03 2002-04-02 Dispositif pour amener un materiau

Country Status (12)

Country Link
US (1) US6896213B2 (fr)
EP (1) EP1372858B1 (fr)
JP (1) JP4026842B2 (fr)
KR (1) KR100868826B1 (fr)
CN (1) CN1265889C (fr)
AT (1) ATE283730T1 (fr)
AU (1) AU2002312787A1 (fr)
CA (1) CA2445424C (fr)
DE (2) DE10116550B4 (fr)
DK (1) DK1372858T3 (fr)
ES (1) ES2233825T3 (fr)
WO (1) WO2002081090A2 (fr)

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
DE10116550B4 (de) * 2001-04-03 2005-06-02 Loesche Gmbh Einrichtung zum Zuführen von Material
DE102005010700A1 (de) * 2005-03-09 2006-09-14 Studiengesellschaft Kohle Mbh Verfahren zur Synthese von Verbindungen
DE102009007481A1 (de) * 2009-01-30 2010-09-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Fördersystem zum Transport von Materialien, insbesondere von Schüttgut
US9643800B2 (en) * 2013-02-23 2017-05-09 Phillip Douglas Horizontal support system
CN109250474A (zh) * 2018-11-01 2019-01-22 温州金余塑胶板有限公司 一种眼镜板材清洗设备
CN110899212A (zh) * 2019-12-24 2020-03-24 江苏奥星电子有限公司 一种铝壳的自动化清洗装置
EP4142948B1 (fr) * 2020-04-29 2024-05-22 Fidetechnology Lda Appareil de production de ciment et procédé de broyage de matériau particulaire
EP3903940A1 (fr) * 2020-04-29 2021-11-03 Mads Jespersen Appareil de production de ciment et procédé de broyage de matériau particulaire
CN111545327B (zh) * 2020-05-19 2021-09-17 铜仁职业技术学院 一种矿石加工装置

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KR200419250Y1 (ko) 2006-03-31 2006-06-16 주식회사 에이원코리아 합성수지원료의 분쇄 및 이송장치

Also Published As

Publication number Publication date
US20040140177A1 (en) 2004-07-22
ES2233825T3 (es) 2005-06-16
CA2445424A1 (fr) 2002-10-17
CN1265889C (zh) 2006-07-26
WO2002081090A3 (fr) 2003-01-03
DE10116550B4 (de) 2005-06-02
KR100868826B1 (ko) 2008-11-14
AU2002312787A1 (en) 2002-10-21
US6896213B2 (en) 2005-05-24
EP1372858A2 (fr) 2004-01-02
CA2445424C (fr) 2007-09-04
DE50201679D1 (de) 2005-01-05
KR20030094319A (ko) 2003-12-11
WO2002081090A2 (fr) 2002-10-17
DK1372858T3 (da) 2005-03-29
CN1531462A (zh) 2004-09-22
DE10116550A1 (de) 2002-10-17
JP4026842B2 (ja) 2007-12-26
JP2004534634A (ja) 2004-11-18
ATE283730T1 (de) 2004-12-15

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