WO2012098131A1 - Procédé et dispositif de criblage des impuretés contenues dans un flux pneumatique de fibres - Google Patents

Procédé et dispositif de criblage des impuretés contenues dans un flux pneumatique de fibres Download PDF

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Publication number
WO2012098131A1
WO2012098131A1 PCT/EP2012/050664 EP2012050664W WO2012098131A1 WO 2012098131 A1 WO2012098131 A1 WO 2012098131A1 EP 2012050664 W EP2012050664 W EP 2012050664W WO 2012098131 A1 WO2012098131 A1 WO 2012098131A1
Authority
WO
WIPO (PCT)
Prior art keywords
normal
section
chute
stream
coarse material
Prior art date
Application number
PCT/EP2012/050664
Other languages
German (de)
English (en)
Inventor
Fritz Schneider
Original Assignee
Dieffenbacher GmbH Maschinen- und Anlagenbau
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 Dieffenbacher GmbH Maschinen- und Anlagenbau filed Critical Dieffenbacher GmbH Maschinen- und Anlagenbau
Priority to CN2012800054941A priority Critical patent/CN103313802A/zh
Priority to EP12701987.5A priority patent/EP2665565A1/fr
Publication of WO2012098131A1 publication Critical patent/WO2012098131A1/fr

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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
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging 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
    • B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness
    • 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
    • B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
    • 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
    • B07B7/086—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by the winding course of the gas stream
    • 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
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres

Definitions

  • the invention relates to a method and an apparatus for the prospect of impurities in the form of coarse material from a for the production of
  • Fiber boards provided, pneumatic stream of fibers.
  • Fiber flow which may for example come from a dry gluing, it is a pneumatic flow, which is generated by negative pressure.
  • the fibers are preferably lignocellulosic and / or
  • the fiberboards are lightweight, medium density (MDF) and high density (HDF) fiberboard.
  • the separator is integrated into a fiber-free air flow.
  • the fiber material is fed to the classifier via external, mechanical conveying elements.
  • the disadvantage here is that the fiber material, which is process-related before the sighting always in an air flow, for example in a pipe dryer, must be passed to the mechanical conveying elements in a previous step. This step requires costly
  • FIG. Facilities such as one or more air-fiber separator with
  • Rotary valves, conveyor belts, dosing bins and ancillary equipment contributes significantly to the operating costs and reduces the reliability.
  • the entire fiber material is subjected to the sighting. It is disadvantageous that because of the lightweight and therefore voluminous fiber material correspondingly large and thus expensive visual systems are required to produce a high resolution of the fiber material. High resolution is the prerequisite for effectively estimating the relative low level of impurities, i. Foreign particles or heavy particles, in the form of coarse material. The proportion of coarse material is approximately 0.01% in relation to that of fibers
  • the invention has for its object to provide a method for the screening of fiber material, wherein the sighting is integrated into a fiber-guiding air flow. Furthermore, the invention has for its object to provide a device that can be integrated into a fiber-guiding air flow.
  • the object concerning the method is solved by the features of claim 1.
  • the fiber stream is guided along a curve. This splits the fiber stream into a stream called the sighting air stream and a stream called the main fiber stream.
  • the meetungs Kunststoffstrom contains apart from air only normal, which consists of fibers.
  • the main fiber stream contains this Coarse material and at least part of the normal good. In the division of the fiber flow, the centrifugal force is exploited, which causes the main fiber flow is guided in an outer region of the curvature.
  • the sighting air stream is sucked off at an inner region of the curve, that is to say where there is no coarse material and as a rule only a small amount of normal material.
  • the main fiber stream is fed to a separation roller which is provided on its surface with a plurality of pins. It rotates in such a way that the coarse material or normal material impinging on the roller is deflected by the pins and guided along a shaft section.
  • Shaft section is formed by a portion of the roll circumference and an opposite wall.
  • the normal good is by the pins and an airflow generated by this to approximately the
  • the separation roller can rotate at a peripheral speed of 10-80 m / s, preferably 50 m / s.
  • At least one suction line is provided which has an inlet opening arranged opposite the shaft section.
  • Chute section is arranged. After passing through the chute, the normal product and the coarse material pass into a wind sifter unit.
  • At least part of the sighting airflow is used for the
  • Wind classifier to be supplied This is done under a related to the coming out of the chute coarse and normal blunt angle.
  • the prepareungs Kunststoffstrom has such a strength that through him coming from the chute normal, which has a substantially vertical component of motion, is redirected, in a Normalgutabsaugschacht into about the continuation of
  • the strength of the sighting air flow is such that, on the other hand, the coarse material is not significantly influenced by the sighting air flow in its likewise essentially vertical direction of movement and reaches a coarse material discharge.
  • the sighting process the fiber material to be viewed can be supplied via the air, which is basically provided for transporting the fibers.
  • the facilities are a complete pneumatic transport system, since the fibers need not be fed to the screening process via an external, mechanical conveyor.
  • Sighting air flow influenced by one or more adjustable means.
  • adjustable means may in particular be a regulating flap or a slide which is arranged in the region of the division of the fiber flow.
  • the strength of the applied negative pressure also plays a role, which significantly influences the speed of the fiber flow within the bend. This speed may be in the range of 10-60 m / s, preferably 25 m / s.
  • this wall of the chute is inclined, with an angle in the range of 25 to 35 degrees is advantageous. This reinforces the effect that the coarse material in the
  • Wind classifier enters, while normal goods across the entire width of Fall shaft enters the wind sifter unit. A movement of the
  • Coarse material along this wall is advantageous because near the inner wall there is a vortex-free zone of the chute. In this way, the separation between coarse and normal material is supported in the wind sifter unit, namely by the coarse material with a certain distance from a
  • the chute has a significantly larger cross-section than the chute section.
  • the main fiber flow within the shaft section only has a thickness of 1 -3 mm. This can be done by an appropriate Dimensioning of the separation roller in relation to the fiber volume can be achieved.
  • a portion of the sighting air flow is not in the
  • Wind classifier can be achieved.
  • the single or one of the plurality of suction lines is arranged so that its inlet opening adjacent to a lower portion of the separating roller, e.g. at the lowest point of the
  • Separation roller is provided. This allows a particularly effective extraction of normal material can be achieved. Because of the number of pins, the separating roller generates a rotating air flow profile, which is supported by the suction. As a result, a considerable part of the normal material passes into the suction, while the heavy particles of the coarse material do not follow the sudden deflection due to their higher kinetic energy. The proportion of extracted normal good depends on the amount of air that is supplied to the chute or withdrawn. To the best possible separation of the main fiber stream in coarse material and
  • the inlet opening of the suction line can also be arranged below the separating roller. It is also possible to provide a second or third suction line with an inlet opening arranged opposite the shaft section. The second and third suction can with their inlet below the first suction or the
  • Windlass unit remains.
  • the coming from the air classifier normal is usually with the through the at least one suction line
  • the inventive method is integrated into one
  • pneumatic transport route which consists of transporting the fibers from one location to another desired location.
  • the device has a portion of a transport line which serves to pneumatically transport the fiber stream.
  • the transport line is connected to at least one fan, which generates a negative pressure in the transport line and is preferably frequency-controlled for adjusting the suction power.
  • the Transport line section has a curvature. In an outlet region of the curvature, ie in a curvature outlet section or in a subsequent adjacent transport line section, the transport line divides into a line referred to below as the fiber main line and a line designated as air secondary line.
  • the air bypass begins at an inner portion of the bend, i. immediately in the course of or adjacent to the inner curvature region, when the branch occurs just past the end region of the curvature.
  • the air bypass is arranged so that taking advantage of the centrifugal force through them only a part of the normal
  • This fiber stream will be according to the above
  • the Fiber Main has its origin at an outer one
  • Curvature area i. immediately in the course of the outer
  • the fiber main line carries a coarse and normal material containing fiber stream, which is referred to as the main fiber stream according to the method described above.
  • the fiber main extends to an outlet port located above a separation roller.
  • the separating roller points at her Surface on a plurality of pins and is rotatable so that the impacting on the roller coarse material or normal material is deflected by the pins and fed to a manhole section.
  • the manhole section is defined by a section of the circumference of the separating roll and a
  • the rotation of the roller is further designed so that the normal material through the pins and an air flow generated by them to approximately the peripheral speed of the separating roller so
  • At least one suction line is provided which has an inlet opening arranged opposite the shaft section.
  • an inlet opening of a chute is arranged below the outlet opening of the shaft section. This opens into a wind sifter unit.
  • the air bypass is designed to cover at least part of the
  • Sighting air flow leads to the wind sifter unit, in such a way that it acts at an obtuse angle on the coming out of the chute normal and coarse material and thus the normal is deflected into a Normalgutabsaugschacht, which is arranged approximately in continuation of the direction of the supplied sighting air flow.
  • a coarse material discharge is arranged below the area of the normal goods diversion. This serves to accommodate the coarse material, which in its direction of movement is not significantly influenced by the sighting air flow.
  • the inventive method can be performed.
  • the device has substantially the same advantages as previously described in connection with the method. This also applies to the preferred embodiments of the device described below.
  • one or more adjustable means are arranged such that, by appropriate adjustment of the means, the division into the main fiber flow and the sighting air flow can be adjusted.
  • the means which may be in particular a butterfly valve or a slide, for example, where the transport line divides into the fiber main line and the air bypass, be appropriate.
  • the wall of the shaft section preferably passes directly into a wall of the chute. This is the wall on the side from which the sighting air flow led into the wind sifter unit becomes.
  • the chute is preferably inclined, the inclination preferably being 25 to 35 degrees.
  • the chute has a significantly larger cross-section than the chute section.
  • a said suction line is provided so that their
  • Inlet opening is arranged adjacent to a lower portion of the separation roller, wherein it can be located in particular at the level of the lowest point of the separation roller.
  • the inlet opening of the suction line can also be arranged below the separating roller.
  • Chute section arranged inlet opening may be provided.
  • the second and third suction line can be arranged with its inlet opening below the first suction line or its inlet opening.
  • the at least one suction line and the Normalgutabsaugschacht the air classifier are usually, but not necessarily connected to each other.
  • the device according to the invention is integrated in one
  • pneumatic transport line provided to transport the fibers from one location to another desired location, for example, from a dry fiber sizing apparatus to a forming machine.
  • the device according to the invention and the method according to the invention can be referred to as an inline classifier or as an inline screening method.
  • FIG. 1 shows schematically a device according to the invention.
  • the device according to FIG. 1 is a device for the prospect of
  • the device consists of a pre-treatment unit 1 and a wind sifter unit 2.
  • the device has a transport line section, which has a
  • pneumatic fiber stream 4 in the direction of arrow 5 leads.
  • Two fans 6 and 7 are connected to the transport line and generate a negative pressure in this.
  • the fiber stream 4 is fed from a device, not shown, e.g. may be avelmaschinebeleimungsvortechnisch sucked. There are also impurities in the form of relatively heavy particles between the fibers representing the normal material 9, which are referred to below as coarse material 10.
  • the transport line section 3 describes a
  • the curvature 12 is formed so that the out of the Normalgut 9 and the coarse material 10 existing fiber stream 4, which moves in the transport line section 3 at a speed of 10 - 60 m / s, preferably 25 m / s, by the action of the curvature 12 acting centrifugal force to an outer region or outer
  • Curvature edge applies.
  • a current divider 15 branch line In the outlet region of the curvature 12 is a designated as a current divider 15 branch line.
  • the flow divider 15 could also be located slightly behind the end of the curve 12, but before it is in the
  • the flow divider 15 divides the transportation line section 3 into a branch, which is referred to below as the main fiber line 16, and a branch, which is referred to as air bypass 17.
  • the flow divider 15 has a control flap 19.
  • the fiber main 16 begins at an outer portion of the bend 12 by the outer region 13 merges into the fiber main line 16.
  • the air bypass 17 begins at an inner portion of the bend 12 by an inner portion 20 of the bend 12 merges into the air bypass 17.
  • the main fiber line 16 passes a main fiber stream 22, which contains the entire coarse material 10 and almost all fibers as normal material 9, on a separating roller 23, on the surface of a plurality of nail-like pins 24 is attached.
  • the air bypass 17 almost fiber-free air, which is referred to below as the sighting air flow 25, sucked by the fan 6 and fed as transport air at an obtuse angle in the direction of arrow 26 of the wind sifter unit 2.
  • Part of this air is used to regulate the flow conditions in the wind sifter unit 2 through a bypass line 27, which has a control flap 28, on the wind sifter unit 2
  • the separating roller 23 rotates in the direction indicated by arrow 30
  • the separating roller 23 has a variable-speed drive.
  • a portion of the separation roll periphery and a wall 32 define a well portion 33 that extends approximately from an exit port 34 of the fiber main 16 to the lowest point of the separation roll 23 and has an exit port 35 therein. With the outlet opening 35 of the shaft portion 33 opens into a chute 37, the one
  • Inlet opening 38 has and a connection between the
  • the separating roller 23 serves to accelerate both the normal and the coarse material in the main fiber stream 22 to the peripheral speed of the separating roller 23 and to let the main fiber stream 22 emerge from the outlet opening 35 in this state.
  • the Shaft portion 33 has a curvature 39, which is slightly larger than the curvature of the separating roller 23 and is designed so that the main fiber flow 22 by applying acting in the curvature 39 centrifugal force against the wall 32 applies.
  • the separating roller 23 is dimensioned in proportion to the fiber volume so that the
  • High-speed main fiber stream 22 in the manhole section 33 only has a thickness of 1 to 3 mm.
  • variable control valve 19 of the flow divider 15 the amount of air can be adjusted, which through the fiber main line 16 together with the
  • Main fiber stream 22 of the separation roller 23 is supplied.
  • Shaft section 33 is arranged, opens into an extension 42 of a Normalgutabsaugschachtes 43.
  • a control slide 45 is arranged to control the amount of air to be sucked.
  • Chute 37 is a relatively large change in cross section with respect to the main fiber stream 22 available space.
  • Air velocity which causes the thin main fiber stream 22 exiting the well section 33 to fan out and partially continue in the chute 37 as a falling stream.
  • the fibers of the normal 9 are to adapt as light particles of this air velocity and the fan-like flow profile, while the coarse material 10 but hardly slows down and their will be maintained by the predetermined by the separating roller 23 direction. This results in a significant speed difference between the normal product and the coarse material 10 and a
  • the chute 37 has an inclination of approximately 30 °, which causes the coarse material 10 to rest on an inner wall 49 of the chute 37 and in an inner wall 49 adjacent, swirl-free zone 50 of the chute 37 slide down.
  • the wind sifter unit 2 connects. This has a Grobgutaustrag 54 with a rotary valve 55 below the confluence of the prepare for the preparation of the feed.
  • a rotary valve 55 below the confluence of the prepare for the preparation of the feedungs Kunststoffstroms 25 and an inlet 52 of the Normalgutabsaugschachtes 43.
  • the separation of the coarse material 10 from the normal material 9 takes place as follows:
  • the separating roller 23 generates by the plurality of pins 24, a rotating air flow profile, by the through
  • the proportion of extracted by the suction line 40 normal goods depends on the amount of air that is fed to the chute 37 and withdrawn. To one as possible to achieve optimal separation of the main fiber stream 22 in coarse material 10 and normal within the pretreatment unit 1, almost the same amount of air is supplied to the chute 37 together with the main fiber stream 22, or possibly a slightly larger Luftmange through the suction line 40 from the chute 37th aspirated. Below the suction line 40, a second and third suction line could be additionally provided, is sucked through the normal, which has not been detected by the suction line 40 and is in the falling stream. The consisting of heavy particles coarse material 10 passes together with remaining normal at the outlet 51 of the chute 37 in the
  • Windscreen unit 2 2.
  • the operation of the wind sifter unit 2 is known to be that the normal material is deflected by the prepare for delivery and the transport stream in the Normalgutabsaugschacht 43 inside, while the coarse material 10 due to their higher kinetic energy such deflection does not experience and get into the Grobgutaustrag 54.
  • the aim is to obtain as many normal items as possible through the at least one
  • Wind classifier unit 2 remains.
  • the separation roller 23 also has the positive side effect of dissolving fiber agglomerates, which greatly contributes to better sighting. (PP1098) List of Reference Numerals: PP 1098

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne un procédé et un dispositif de criblage des impuretés contenues sous forme de matière grossière (10) dans un flux pneumatique de fibres (4) destiné à la fabrication de plaques en fibres. Le flux de fibres est divisé en utilisant la force centrifuge, en un flux d'air de criblage (25) qui ne contient que de l'air ainsi que de la matière normale (9) constituée de fibres et en un flux de fibres principal (22) contenant la matière grossière (10) ainsi que de la matière normale (9). Le flux de fibres (4) suit une courbe (12), le flux de fibres principal est guidé dans une partie extérieure (13) de la courbe et le flux d'air de criblage est aspiré sur une partie intérieure (20) de la courbe. Le flux de fibres principal est amené à un rouleau séparateur (23) qui comporte sur sa surface une pluralité de pointes (24) et qui tourne de telle manière que la matière grossière et la matière normale présentes sont déviées et guidées le long d'une section puits (33) et que la matière normale est accélérée approximativement à la vitesse périphérique du cylindre, de sorte qu'une partie de la matière normale sort de la zone active du cylindre selon une composante de mouvement horizontale. Une partie de la matière normale est aspirée par une conduite d'aspiration (40) et une partie de la matière normale et la matière grossière pénètrent dans un puits vertical (37) et en sortent pour pénétrer dans un séparateur pneumatique (2), au moins une partie de l'air de criblage étant amené au séparateur de telle manière qu'il agit sur la matière normale et grossière provenant du puits vertical (37) et dévie la matière normale dans un puits d'aspiration (43) de la matière normale, tandis que la matière grossière rejoint une évacuation de la matière grossière (54). Le procédé et le dispositif peuvent être intégrés dans une ligne de transport existante.
PCT/EP2012/050664 2011-01-17 2012-01-17 Procédé et dispositif de criblage des impuretés contenues dans un flux pneumatique de fibres WO2012098131A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2012800054941A CN103313802A (zh) 2011-01-17 2012-01-17 从纤维气流中分离出污染物的方法和装置
EP12701987.5A EP2665565A1 (fr) 2011-01-17 2012-01-17 Procédé et dispositif de criblage des impuretés contenues dans un flux pneumatique de fibres

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011008757.5 2011-01-17
DE102011008757A DE102011008757A1 (de) 2011-01-17 2011-01-17 Verfahren und Vorrichtung zum Aussichten von Verunreinigungen aus einem pneumatischen Faserstrom

Publications (1)

Publication Number Publication Date
WO2012098131A1 true WO2012098131A1 (fr) 2012-07-26

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Country Status (4)

Country Link
EP (1) EP2665565A1 (fr)
CN (1) CN103313802A (fr)
DE (1) DE102011008757A1 (fr)
WO (1) WO2012098131A1 (fr)

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WO2015027634A1 (fr) * 2013-08-26 2015-03-05 上海金匙环保科技股份有限公司 Appareil de séparation de matériau
CN107670983A (zh) * 2017-11-10 2018-02-09 重庆市贵金象炭黑有限责任公司 一种物料分离装置以及重质物料分离系统

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CN105329565B (zh) * 2015-11-29 2017-07-14 重庆元创汽车整线集成有限公司 一种料斗
DE102017120033B4 (de) 2017-08-31 2024-02-08 Siempelkamp Maschinen- Und Anlagenbau Gmbh Vorrichtung zur Abtrennung und/oder Gewinnung von Silikatpartikeln aus pflanzlichem Material
WO2020254538A2 (fr) * 2019-06-21 2020-12-24 Librixer Ab Broyeur librixer et système de classificateur pneumatique de particules
CN111014035B (zh) * 2019-12-21 2022-12-06 铜陵万华禾香板业有限公司 一种用于分离棉杆纤维与絮状物的风选机
CN112974245A (zh) * 2021-01-28 2021-06-18 南县三缘米业有限公司 一种环保型大米加工用除杂装置
CN113171877B (zh) * 2021-06-30 2021-08-24 西南交通大学 一种建筑回收骨料筛分装置

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WO2001089783A1 (fr) 2000-05-24 2001-11-29 Flakeboard Company Limited Procede et dispositif pour supprimer les irregularites dans un flux de fibres de bois

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WO2015027634A1 (fr) * 2013-08-26 2015-03-05 上海金匙环保科技股份有限公司 Appareil de séparation de matériau
CN107670983A (zh) * 2017-11-10 2018-02-09 重庆市贵金象炭黑有限责任公司 一种物料分离装置以及重质物料分离系统

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