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WO1994020229A1 - Convoyeur pour matieres en vrac - Google Patents

Convoyeur pour matieres en vrac Download PDF

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Publication number
WO1994020229A1
WO1994020229A1 PCT/EP1994/000668 EP9400668W WO9420229A1 WO 1994020229 A1 WO1994020229 A1 WO 1994020229A1 EP 9400668 W EP9400668 W EP 9400668W WO 9420229 A1 WO9420229 A1 WO 9420229A1
Authority
WO
WIPO (PCT)
Prior art keywords
outlet
trough
channel
conveyor
opening
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.)
Ceased
Application number
PCT/EP1994/000668
Other languages
German (de)
English (en)
Inventor
Wolfgang Seichter
Hagen Wiards
Michael Meinen
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.)
Seichter GmbH
Original Assignee
Seichter 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 Seichter GmbH filed Critical Seichter GmbH
Publication of WO1994020229A1 publication Critical patent/WO1994020229A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • 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
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
    • 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
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
    • B07B13/07—Apparatus in which aggregates or articles are moved along or past openings which increase in size in the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G27/00—Jigging conveyors
    • B65G27/04—Load carriers other than helical or spiral channels or conduits

Definitions

  • the invention relates to a conveyor for bulk goods, with a trough with two side walls and an outlet opening at one end.
  • Such conveyors are known in many forms. Occasionally it also happens that these conveying devices for classifying the bulk material are additionally designed.
  • DE 90 00 291 U1 describes a device for classifying tobacco for the manufacture of cigarettes.
  • a vibrating conveyor trough with a plurality of recesses which are V-shaped in cross section and run parallel to one another is used as the conveyor device.
  • the bottom of the V-shaped depressions is provided with outlet slots running in the longitudinal direction. Elongated tobacco parts fall through the V-shaped recesses in the channel, frizzy and fibrous tobacco parts remain in the channel and are conveyed further.
  • a bunker discharge channel for underground use is known from the magazine "Förder und Heben” 19 (1969) No. 10 pages 590 to 599.
  • Raw coal is slidably conveyed on a slightly curved, essentially flat, sloping vibratory feeder.
  • a large number of finger-shaped recesses at the discharge end initially drop the fine portion of the coal onto a conveyor belt and thus provide natural protection against the impact of coarse individual pieces.
  • the object of the invention is to propose a conveying device which makes it possible to separate the fine-grained from the coarse-grained components of the bulk material during conveying.
  • the channel has a V-shaped cross section and the bottom of the channel is provided with a slot widening towards the end at the outlet end.
  • the fine-grained portion of the bulk material preferably collects at the deepest point, this process being supported by the vibrations of the drive of the conveying device;
  • a conveying device one has to imagine, for example, a bucket extraction trough and / or balancing trough.
  • the opening angle of the slot which arises at the outlet-side end of the bottom of the channel, is preferably greater than the self-releasing angle of the bulk material. It has been shown that such an angle can very reliably prevent jamming of fragments of bulk material, since, for example, glass fragments which have been clamped can loosen themselves again from the waste glass recycling in the case of such angle openings.
  • the opening angle is particularly preferably greater than 16 °.
  • a separating device for example a partition or dividing wall, is particularly preferably arranged below the outlet opening, so that the fractions falling locally separate from one another can be collected particularly easily and fed to a separate use.
  • the separating or dividing wall separates the resulting separated material flows of the bulk material into different paths.
  • a discharge device can also be used, which picks up one of the separating material streams that arise and removes them directly in a targeted manner.
  • This can be a conveyor belt or a chute that conveys the larger glass fragments away, while the smaller, crumb-like dust particles fall down or can also be extracted.
  • the upper edge of the partition or, in the alternative form, the top of this discharge device should preferably have a distance from the outlet-side end of the trough that is larger than an expected bulk material part.
  • the gutter according to the invention can be further improved by some further preferred measures.
  • a device for the jamming-free metering of coarse-grained bulk goods is created.
  • coarse-grained bulk materials such as the glass breakage mentioned from the recycling of waste glass
  • the problem often arises that the dimensions of the dosing elements have to be kept very small because of the low mass flows, but on the other hand precisely because of this the risk of canting individual pieces consists. This problem occurs in particular when using balancing conveyors as a bunker discharge channel.
  • a feed device is provided above the trough, the underside of which has an outlet opening and that the clear width between the edges of this outlet opening and the side walls of the trough is always larger than the largest grain diameter to be expected.
  • the trough is arranged relative to the feed device in such a way that it is so long both towards the exit-side end and towards the opposite end that both ends are not reached during operation when the angle of repose is freely formed.
  • the bulk material can then "breathe" freely in the trough after leaving the feed device. Blockages or influences on the further flow are avoided in this way since irregularities in the feed rate, for example due to changing magnitudes of the grain sizes of the bulk material, are freely compensated for.
  • the support is provided or supported by vibration exciters.
  • these vibrations can be braked or damped if the bulk material, without a freely developing angle of repose, for example lies against the end of the conveyor trough lying in the opposite direction of conveyance and clogs.
  • the outlet opening of the bunker Above the V-shaped bunker discharge trough with vibratory drive, the outlet opening of the bunker is arranged so that the free angle of repose of the material can form without the material being able to leave the device at any point when stationary.
  • the distance between the edge of the bunker outlet opening and the components of the discharge channel is in each case significantly larger than the largest dimension of an individual grain to be expected. As a result, there is no longer any risk of jamming.
  • the wall of the metering trough opposite the conveying direction is so far away from the bunker outlet opening that it is not touched when the free pouring angle is fully formed in operation, ie when the vibration drive is switched on.
  • the freedom of movement of the fragments in itself is not restricted, so that there is also no risk of jamming.
  • the end of the channel which lies opposite the end on the outlet side, can be closed off with a wall. It can also remain open, since the movement of the bulk material tends to make fragments unlikely to fall out in the opposite direction.
  • the bulk material in the gutter "breathes" freely in both directions and thus compensates for unevenness in the inflow.
  • Fig. 1 shows a schematic embodiment of the invention from different views
  • Fig. 2 shows a second embodiment.
  • the core of the conveyor device is a channel 1 with a V-shaped cross section.
  • the channel has two side walls 11 and 12 which enclose an approximately right angle with one another. The angle is arranged at the lowest end of the essentially symmetrically arranged V-shaped channel 1 and forms the bottom 13 there.
  • the vibration drive 2 is indicated below the channel 1
  • the feed device 3 which is constructed like a bunker and has an outlet opening 31 at its lower end.
  • the trough 1 itself has an exit-side end 5, at which the conveyed bulk goods emerge, and an end 4 opposite the exit-side end 5.
  • a wall 4 opposite the conveying direction is provided in the drawing in order to stabilize the trough and to prevent bulk material that is inadvertently conveyed from escaping on this side. As a rule, this wall is not absolutely necessary.
  • the outlet-side end 5 is not provided with such a wall, but is open.
  • the two side walls 11 and 12 are here simply vertical in their upper region cut off. In its lower, the 13 adjacent floor
  • the area is formed by a slot in that the side walls 11 and 12 are cut off obliquely from the floor in the direction of the exit end upwards.
  • a separating device 6, in this case a partition 6, is located below the outlet end.
  • the bulk material from the feed device 3 falls into the channel 1 and is conveyed in the direction away from the wall 4 towards the opening at the outlet-side end 5. Due to the vibrations and the V-shaped design, the fine-grained portions 21 get near the bottom 13, while the coarse-grained portions 22 collect further up in the channel 1. From the slot at the outlet-side end 5 of the channel 1, the fine-grained fractions 21 therefore first fall down from the channel 1 in front of the separating device 6 in the conveying direction and can be discharged separately. The coarse-grained portions 22 will reach the separating device 6 at the outlet and will be treated separately as a coarse portion.
  • the distance between the edge of the outlet opening 31 of the feed device 3 and the individual elements of the channel 1, essentially the side walls 11 and 12, is greater than the largest possible diameter of the grains of the bulk material. Nevertheless, the feed opening 31 protrudes under the upper edges of the side walls 11 and 12 of the channel 1.
  • the second embodiment largely corresponds to the first, so reference is made to the corresponding description.
  • a discharge device 23 is provided here, for example a conveyor belt or a further vibrating trough or slide.
  • the fine-grained portions 21 fall vertically downward through the slot and in front of the front edge of the discharge device 23, while the coarse-grained portions 22 reach the exit-side end 5 undisturbed from the slot located below them and only fall there, here onto the removal device 23, which extends up to here.
  • the falling parabola of the respective parts is taken into account in the drawing.
  • the coarse-grained (large-grained) portions 22 are then transported away on the discharge device 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Jigging Conveyors (AREA)

Abstract

Un convoyeur pour matières en vrac comprend un couloir (1) avec deux parois latérales (11, 12) et un orifice de sortie à une extrémité (5). Le couloir a une section transversale en V. A son extrémité de sortie (5), le fond du couloir est pourvu d'une ouverture ménagée avant l'extrémité du couloir.
PCT/EP1994/000668 1993-03-06 1994-03-07 Convoyeur pour matieres en vrac Ceased WO1994020229A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4307138.4 1993-03-06
DE19934307138 DE4307138A1 (de) 1993-03-06 1993-03-06 Fördereinrichtung für Schüttgut

Publications (1)

Publication Number Publication Date
WO1994020229A1 true WO1994020229A1 (fr) 1994-09-15

Family

ID=6482157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/000668 Ceased WO1994020229A1 (fr) 1993-03-06 1994-03-07 Convoyeur pour matieres en vrac

Country Status (2)

Country Link
DE (1) DE4307138A1 (fr)
WO (1) WO1994020229A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019097528A1 (fr) * 2017-11-16 2019-05-23 Osmund Justin Jebaraj Crible à percussion
US11154908B2 (en) 2016-12-16 2021-10-26 Siltronic Ag Separating apparatus for polysilicon

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19833128C2 (de) * 1997-07-26 2002-01-17 Rwk Kalk Ag Verfahren und Vorrichtung zum Sortieren von Gesteinsbrocken
DE19914998A1 (de) * 1999-04-01 2000-10-12 Wacker Chemie Gmbh Schwingförderer und Verfahren zur Förderung von Siliciumbruch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455445A (en) * 1966-02-01 1969-07-15 Kenneth M Allen V-trough grader
US4304661A (en) * 1980-03-10 1981-12-08 Nelson George S Machines for concentrating ore
SU977315A1 (ru) * 1978-03-02 1982-11-30 Центральный научно-исследовательский институт оловянной промышленности Вибрационный питатель дл выпуска руды
DE9000291U1 (de) * 1990-01-12 1990-03-01 Niepmann Traylift Transportsysteme GmbH & Co KG, 5820 Gevelsberg Vorrichtung zum Klassifizieren von Tabak

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035960A1 (de) * 1990-11-12 1992-05-14 Lindemann Maschfab Gmbh Verfahren und vorrichtung zum trennen unterschiedlich grosser gemischbestandteile eines feststoffgemisches

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455445A (en) * 1966-02-01 1969-07-15 Kenneth M Allen V-trough grader
SU977315A1 (ru) * 1978-03-02 1982-11-30 Центральный научно-исследовательский институт оловянной промышленности Вибрационный питатель дл выпуска руды
US4304661A (en) * 1980-03-10 1981-12-08 Nelson George S Machines for concentrating ore
DE9000291U1 (de) * 1990-01-12 1990-03-01 Niepmann Traylift Transportsysteme GmbH & Co KG, 5820 Gevelsberg Vorrichtung zum Klassifizieren von Tabak

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
K. STEINBRÜCK: "Hannover-Messebericht : Schwingförderer", FORDERN UND HEBEN, vol. 19, no. 10, 1969, MAINZ DE, pages 590 - 599 *
SOVIET INVENTIONS ILLUSTRATED Section PQ Week K40, 16 November 1983 Derwent World Patents Index; Class Q35, AN 83-781202 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11154908B2 (en) 2016-12-16 2021-10-26 Siltronic Ag Separating apparatus for polysilicon
WO2019097528A1 (fr) * 2017-11-16 2019-05-23 Osmund Justin Jebaraj Crible à percussion

Also Published As

Publication number Publication date
DE4307138A1 (de) 1994-09-08

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