EP2276584A1 - Rotating device for pretreating continuously taken in household refuse - Google Patents

Rotating device for pretreating continuously taken in household refuse

Info

Publication number
EP2276584A1
EP2276584A1 EP09749995A EP09749995A EP2276584A1 EP 2276584 A1 EP2276584 A1 EP 2276584A1 EP 09749995 A EP09749995 A EP 09749995A EP 09749995 A EP09749995 A EP 09749995A EP 2276584 A1 EP2276584 A1 EP 2276584A1
Authority
EP
European Patent Office
Prior art keywords
fraction
waste
screen
mixing
drum assembly
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.)
Withdrawn
Application number
EP09749995A
Other languages
German (de)
French (fr)
Inventor
Michel Mazon
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2276584A1 publication Critical patent/EP2276584A1/en
Withdrawn legal-status Critical Current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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • B07B1/24—Revolving drums with fixed or moving interior agitators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/007—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls specially adapted for disintegrating refuse

Definitions

  • the present invention relates to a device and a system for pretreatment of household waste and the like. It relates in particular to the recovery of organic matter from household waste and the like by a rotary device.
  • the primary objective of the invention is to propose a solution for facilitating the operations of opening the bags, preparing the mass of the waste at the separation and then the separation itself of the two organic and non-organic fractions.
  • the second objective of the invention is furthermore to propose a simple and efficient system for improving, as soon as possible, the separation of household waste and the like.
  • a confined enclosure adapted to receive the waste comprising at least one inlet and at least one outlet, said enclosure comprises a rotary drum;
  • said drum comprises a plurality of blades regularly distributed on the inside face of its cylindrical wall
  • a toothing extends over a major part of the length of the drum adapted to tear the bags of waste
  • the toothing has a transverse inclination to the drum, in a direction corresponding to the mixing direction.
  • the present invention differs from the two previous ones, even though it incorporates certain features of the aforementioned patents, since it is a pre-treatment system by separation of household and similar waste, and not of a treatment system. in that the device set up is different as much on its final design as on the desired functions of the tools put in place, as will be understood from the following description:
  • Fiq No. 1 a mixer / screener device comprising the following features:
  • FIG. 1 a movable drum assembly in two fractions (FIG. 1) coupled in rotation about an axis X1 so as to simultaneously mix and screen the waste:
  • a "mixer" fraction M whose length is preferably twice that of the "screen” fraction equipped with tilting blades 1, in the form of teeth, the inclination and orientation of which may vary according to the direction of rotation chosen, and
  • the mixer outlet which serves as weir in the screen, is made by an outlet tympanum 11 (fig 2)
  • the device is also provided with an input tympanum 13 (FIG. 3);
  • the device comprises a fixed circular hood covering the screen (FIG. 4).
  • the "blender" fraction will in length at least double the "screen” fraction.
  • the discharge tympanum 11 is attached to the opposite end of the input tympanum 13 inside the mixing tube and rotates therewith. It is composed of a solid metal wall provided with a circular hole 15 centered on the axis X1 of the mixing tube as well as lifting blades 17.
  • the input eardrum 13 is fixed and equipped with a feed chute 19 located on the upper quarter of the eardrum opposite the direction of rotation of the mixing tube. It can also be rotatable and identical to the output eardrum with a feed hole centered on the axis of rotation of the mixing tube.
  • the circular cover 7 is fixed and smooth in its inner part, its diameter is about 400 mm larger than the diameter of the screen 4 so as to allow it to cap the screen and abut with a suitable seal on the mixing drum. It is equipped with fixed feet 21 (FIG. 1), an evacuation chute 23, a "refusal” receiving conveyor 25, a “passing” receiving conveyor 27 as well as a ramp provided with of compressed air nozzles 29 and a ventilation stitch 31 for aspiration of vapors or odors. Operation of the invention
  • the mixing / screening tube M, 4 being rotated in the intended direction, the household waste and the like are transported to the input tympanum 13 where they are introduced into the mixer by the feed chute 19.
  • This chute of Feed can also receive other liquid or solid fluids for the purpose of mixing.
  • the measurement of the weight of the waste in treatment is done in a specific way on the "mixer" part M.
  • the weight rate of the screen / mixer will be given by the speed of filling of the mixer .
  • the flow can also be done more naturally by giving a more or less accentuated slope to the sieve / mixer assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Processing Of Solid Wastes (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

This device for pretreating household waste is noteworthy in that it comprises a drum assembly having a mixer section (M) and a screen section (C) coupled together and rotating about a single axis (X1).

Description

Dispositif rotatif de pré-traitement des ordures ménagères et assimilés en continu Rotating device for pre-treatment of household waste and the like
La présente invention se rapporte à un dispositif et à un système de prétraitement des ordures ménagères et assimilés. Elle se rapporte notamment à la récupération de la matière organique des déchets ménagers et assimilés par un dispositif rotatif.The present invention relates to a device and a system for pretreatment of household waste and the like. It relates in particular to the recovery of organic matter from household waste and the like by a rotary device.
Il existe des procédés pour valoriser les ordures ménagères, notamment le tri puis la transformation des déchets organiques en compost ou fertilisant. Cependant, les ordures ménagères sont généralement contenues dans des sacs poubelles, résistants et difficiles à ouvrir. Ainsi, il faut beaucoup de temps à des opérateurs pour ouvrir les sacs et libérer les ordures proprement dites puis, si nécessaire, en séparer les différents contenus et fractions avant une transformation ultérieure.There are processes for recovering household waste, including sorting and then converting organic waste into compost or fertilizer. However, garbage is usually contained in garbage bags, resistant and difficult to open. Thus, it takes a lot of time for operators to open the bags and release the garbage itself and, if necessary, separate the different contents and fractions before a subsequent transformation.
L'objectif premier de l'invention est de proposer une solution pour faciliter les opérations d'ouverture des sacs, préparation de la masse des déchets à la séparation puis la séparation elle-même des deux fractions organiques et non- organiques.The primary objective of the invention is to propose a solution for facilitating the operations of opening the bags, preparing the mass of the waste at the separation and then the separation itself of the two organic and non-organic fractions.
Le deuxième objectif de l'invention est en outre de proposer un système simple et performant pour améliorer dans les plus brefs délais la séparation des ordures ménagères et assimilés.The second objective of the invention is furthermore to propose a simple and efficient system for improving, as soon as possible, the separation of household waste and the like.
II existe notamment un brevet d'invention n° 05 08416 délivré à VALOROM et déposé le 08/08/2005 concernant un dispositif de mélange revendiquant certains éléments du dispositif, à savoir :There exists in particular a patent of invention No. 05 08416 issued to VALOROM and filed on 08/08/2005 concerning a mixing device claiming certain elements of the device, namely:
- une enceinte confinée apte à recevoir les déchets comportant au moins une entrée et au moins une sortie, ladite enceinte comprend un tambour rotatif,a confined enclosure adapted to receive the waste comprising at least one inlet and at least one outlet, said enclosure comprises a rotary drum;
- des moyens pour mettre ladite enceinte en mouvement,means for putting said enclosure in motion,
- dispositif dans lequel ledit tambour comprend une pluralité de pales réparties régulièrement sur la face intérieure de sa paroi cylindrique,device in which said drum comprises a plurality of blades regularly distributed on the inside face of its cylindrical wall,
- dispositif dans lequel l'axe du tambour est incliné de manière à faciliter la sortie des déchets, - dispositif dans lequel ledit tambour est monté sur des moyens de pesage.- device in which the axis of the drum is inclined so as to facilitate the exit of the waste, - Device wherein said drum is mounted on weighing means.
Il existe également une demande de brevet d'invention n° 06 09478 du 27/10/2006 déposée par Monsieur MAZON Michel à savoir :There is also a patent application 06 09478 of 27/10/2006 filed by Mr. MAZON Michel, namely:
- dispositif caractérisé en ce qu'une denture s'étend sur une majeure partie de la longueur du tambour adaptée à déchirer les sacs de déchets,- Device characterized in that a toothing extends over a major part of the length of the drum adapted to tear the bags of waste,
- dispositif caractérisé en ce que la denture a une inclinaison transversale au tambour, selon une direction correspondant au sens de mélange.- Device characterized in that the toothing has a transverse inclination to the drum, in a direction corresponding to the mixing direction.
La présente invention diffère des deux précédentes, même si elle reprend certaines caractéristiques des brevets susmentionnés, du fait qu'il s'agit d'un système de pré-traitement par séparation des déchets ménagers et assimilés, et non d'un système de traitement, en ceci que le dispositif mis en place est différent autant sur sa conception finale que sur les fonctions souhaitées des outils mis en place, comme cela va pouvoir être compris à partir de la description suivante:The present invention differs from the two previous ones, even though it incorporates certain features of the aforementioned patents, since it is a pre-treatment system by separation of household and similar waste, and not of a treatment system. in that the device set up is different as much on its final design as on the desired functions of the tools put in place, as will be understood from the following description:
Fiq n°1 : un dispositif mélangeur/cribleur comprenant les caractéristiques suivantes :Fiq No. 1: a mixer / screener device comprising the following features:
- un ensemble tambour mobile en deux fractions (fig.1) accouplées en rotation autour d'un axe X1 pour assurer simultanément le mélange et le criblage des déchets :a movable drum assembly in two fractions (FIG. 1) coupled in rotation about an axis X1 so as to simultaneously mix and screen the waste:
1. une fraction « mélangeur » M dont la longueur est de préférence le double de la fraction « crible » équipée de pales de relevage 1 , en forme de dents, dont l'inclinaison et l'orientation peuvent varier en fonction du sens de rotation choisi, et1. a "mixer" fraction M whose length is preferably twice that of the "screen" fraction equipped with tilting blades 1, in the form of teeth, the inclination and orientation of which may vary according to the direction of rotation chosen, and
2. une fraction « crible » C équipée de longerons horizontaux 3 supportant les grilles criblantes 4 dont le diamètre des mailles est fonction du choix technique voulu. Ces longerons sont eux-mêmes équipés de bavettes rigides 5 (fig.4) venant en appui suivant un angle approximatif de 90° sur le capot fixe 7 afin de le nettoyer. Une spire sans fin 9 (fig.1) est fixée sur toute la paroi intérieure du crible afin de faciliter l'extraction des refus.2. a "screen" C fraction equipped with horizontal spars 3 supporting screening screens 4 whose mesh size is a function of the desired technical choice. These rails are themselves equipped with rigid flaps 5 (fig.4) bearing at an approximate angle of 90 ° to the fixed cover 7 to clean it. An endless turn 9 (fig.1) is fixed on the entire inner wall of the screen to facilitate the extraction of refusals.
• La motorisation du dispositif est faite sur la partie « mélangeur »• The motorization of the device is made on the "mixer" part
M, le crible 4 étant entraîné par la fraction « mélangeur ». La sortie mélangeur qui sert de déversoir dans le crible, est faite par un tympan de sortie 11 (fig 2)M, the sieve 4 being driven by the "mixer" fraction. The mixer outlet which serves as weir in the screen, is made by an outlet tympanum 11 (fig 2)
- le dispositif est également muni d'un tympan d'entrée 13 (fig 3) ;the device is also provided with an input tympanum 13 (FIG. 3);
- le dispositif comprend un capot circulaire fixe couvrant le crible (fig 4).the device comprises a fixed circular hood covering the screen (FIG. 4).
De préférence, la fraction « mélangeur » fera en longueur au moins le double de la fraction « crible ».Preferably, the "blender" fraction will in length at least double the "screen" fraction.
Fig n°2 : Le tympan de sortie 11 des déchets est fixé à l'extrémité opposée du tympan d'entrée 13 à l'intérieur du tube mélangeur et tourne avec celui-ci. Il est composé d'une paroi métallique pleine munie d'un trou circulaire 15 centré sur l'axe X1 du tube mélangeur ainsi que de pales de relevage 17.Fig 2: The discharge tympanum 11 is attached to the opposite end of the input tympanum 13 inside the mixing tube and rotates therewith. It is composed of a solid metal wall provided with a circular hole 15 centered on the axis X1 of the mixing tube as well as lifting blades 17.
Fiq n°3 : Le tympan d'entrée 13 est fixe et équipé d'une goulotte d'alimentation 19 située sur le quart haut du tympan à l'opposé du sens de rotation du tube mélangeur. Il peut être également rotatif et identique au tympan de sortie avec un trou d'alimentation centré sur l'axe de rotation du tube mélangeur.Fiq No. 3: The input eardrum 13 is fixed and equipped with a feed chute 19 located on the upper quarter of the eardrum opposite the direction of rotation of the mixing tube. It can also be rotatable and identical to the output eardrum with a feed hole centered on the axis of rotation of the mixing tube.
Fiq n°4 : Le capot circulaire 7 est fixe et lisse dans sa partie intérieure, son diamètre est supérieur de 400 mm environ au diamètre du crible 4 de façon à lui permettre de coiffer le crible et de venir buter avec une étanchéité adaptée sur le tambour mélangeur. Il est équipé de pieds fixes 21 (fig.1), d'une goulotte d'évacuation 23, d'un convoyeur de réception « refus » 25, d'un convoyeur de réception « passant » 27 ainsi que d'une rampe munie de buses à air comprimé 29 et d'un piquage de ventilation 31 permettant une aspiration des vapeurs ou odeurs. Fonctionnement de l'invention :Fiq No. 4: The circular cover 7 is fixed and smooth in its inner part, its diameter is about 400 mm larger than the diameter of the screen 4 so as to allow it to cap the screen and abut with a suitable seal on the mixing drum. It is equipped with fixed feet 21 (FIG. 1), an evacuation chute 23, a "refusal" receiving conveyor 25, a "passing" receiving conveyor 27 as well as a ramp provided with of compressed air nozzles 29 and a ventilation stitch 31 for aspiration of vapors or odors. Operation of the invention
Le tube mélangeur/cribleur M, 4 étant en rotation dans le sens prévu, les déchets ménagers et assimilés sont transportés jusqu'au tympan d'entrée 13 où ils sont introduits dans le mélangeur par la goulotte d'alimentation 19. Cette goulotte d'alimentation peut également recevoir, d'autres fluides liquides ou solides pour les besoin du mélange.The mixing / screening tube M, 4 being rotated in the intended direction, the household waste and the like are transported to the input tympanum 13 where they are introduced into the mixer by the feed chute 19. This chute of Feed can also receive other liquid or solid fluids for the purpose of mixing.
Le mesurage du poids des déchets en traitement se fait d'une façon spécifique sur la partie « mélangeur » M.The measurement of the weight of the waste in treatment is done in a specific way on the "mixer" part M.
Les déchets, une fois dans le mélangeur, sont brassés par les pales à dents 1 dans le sens de la rotation, les sacs s'ouvrent et les déchets se déstructurent sous l'effet des dents et de l'humidité qu'ils contiennent. Le volume des déchets ainsi brassés se réduit, le niveau de remplissage monte jusqu'au niveau bas du trou 15 du tympan de sortie 1 1 , assurant à ce niveau une masse importante en mélange pouvant atteindre plusieurs tonnes. Pour assurer le débit de passage en continu, on va continuer à alimenter le mélangeur en déchets ou autres fluides par la goulotte 19 du tympan d'entrée 13 afin de faire monter le niveau de remplissage ; ce niveau va permettre, par la pression des déchets entrants sur les déchets en mélange, aux déchets en mélange de se déverser dans le crible C par le trou 15 du tympan de sortie 11. Les pales 17 du tympan de sortie 11 , en rotation, facilitant la remontée de la masse de déchets vers le trou 15 d'évacuation du tympan de sortie 11 et le déversement des déchets ainsi déstructurés dans le crible 4. Le débit en poids du crible/mélangeur, sera donné par la vitesse de remplissage du mélangeur. Le débit peut également se faire de façon plus naturelle en donnant une pente plus ou moins accentuée à l'ensemble crible/mélangeur.The waste, once in the mixer, are stirred by the blades with teeth 1 in the direction of rotation, the bags open and the waste is destructured under the effect of the teeth and the humidity they contain. The volume of the waste thus brewed is reduced, the level of filling rises to the low level of the hole 15 of the outlet tympanum 1 1, ensuring at this level a large mass of mixture of up to several tons. To ensure the continuous flow rate, we will continue to feed the mixer waste or other fluids through the chute 19 of the input eardrum 13 to raise the level of filling; this level will allow, by the pressure of the incoming waste on the mixed waste, mixed waste to pour into the screen C through the hole 15 of the output tympanum 11. The blades 17 of the output tympanum 11, in rotation, facilitating the return of the mass of waste to the discharge hole 15 of the outlet tympanum 11 and the discharge of the waste thus destructured in the screen 4. The weight rate of the screen / mixer, will be given by the speed of filling of the mixer . The flow can also be done more naturally by giving a more or less accentuated slope to the sieve / mixer assembly.
Les déchets déversés dans la fraction « crible » C par le tympan de sortie 11 vont subir, suivant une maille de crible 4 définie pour le meilleur rendement, une séparation granulométrique. La partie passante se projetant sur la paroi du capot fixe 7 et la partie refus emmenée vers la goulotte 23 par une spire d'évacuation 9. Les bavettes de raclage 5 en appui sur la paroi fixe 7 du capot, tournant avec le crible 4, vont permettre la récupération des déchets passants vers le tapis d'évacuation 27 des produits criblés et le nettoyage de la paroi intérieure du capot. Les buses d'air comprimé 29 fixées sur la paroi extérieure du capot fixe 7 et traversant celui-ci, vont permettre de nettoyer et de déboucher les mailles du crible 4. The waste dumped in the fraction "screen" C by the output tympanum 11 will suffer, according to a screen mesh 4 defined for the best yield, a particle size separation. The passing portion projecting on the wall of the fixed hood 7 and the refusal part taken to the chute 23 by a discharge turn 9. The scraper strips 5 resting on the fixed wall 7 of the hood, rotating with the screen 4, will allow the recovery of waste passing to the conveyor belt 27 of the screened products and the cleaning of the inner wall of the hood. Air nozzles compressed 29 fixed on the outer wall of the fixed cover 7 and passing therethrough, will allow to clean and unclog the mesh of the screen 4.

Claims

Revendications claims
1. Dispositif de pré-traitement des déchets ménagers, caractérisé en ce qu'il comprend un ensemble de tambour comportant une fraction mélangeur (M) et une fraction crible (C), accouplées l'une à l'autre et rotatives autour d'un même axe (X1 ).1. Device for pre-treatment of domestic waste, characterized in that it comprises a drum assembly comprising a mixing fraction (M) and a sieve fraction (C), coupled to one another and rotatable around the same axis (X1).
2. Dispositif selon la revendication 1 , caractérisé en ce qu'il comprend un tympan de sortie des déchets 11 solidaire en rotation dudit ensemble de tambour, disposé entre lesdites fractions mélangeur (M) et crible (C) et muni d'un trou circulaire (15).2. Device according to claim 1, characterized in that it comprises a waste outlet tympanum 11 integral in rotation with said drum assembly, disposed between said mixer (M) and sieve (C) fractions and provided with a circular hole (15).
3. Dispositif selon la revendication 2, caractérisé en ce qu'il comprend des pales de relevage (17) disposées autour dudit trou (15).3. Device according to claim 2, characterized in that it comprises lifting blades (17) disposed around said hole (15).
4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un tympan d'entrée (13) fixe et équipé d'une goulotte d'alimentation (19).4. Device according to any one of the preceding claims, characterized in that it comprises an input tympanum (13) fixed and equipped with a feed chute (19).
5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite fraction mélangeur (M) est équipée de pales à dents (1 ).5. Device according to any one of the preceding claims, characterized in that said mixing fraction (M) is equipped with toothed blades (1).
6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite fraction crible (C) comprend un crible rotatif (4) couplé à ladite fraction mélangeur (M), monté à l'intérieur d'un capot circulaire fixe (7).6. Device according to any one of the preceding claims, characterized in that said sieve fraction (C) comprises a rotary screen (4) coupled to said mixing fraction (M), mounted inside a fixed circular hood ( 7).
7. Dispositif selon la revendication 6, caractérisé en ce que ledit crible rotatif (4) est muni de longerons (3) équipés de bavettes rigides (5) venant en appui sur ledit capot fixe (7).7. Device according to claim 6, characterized in that said rotary screen (4) is provided with longitudinal members (3) equipped with rigid flaps (5) resting on said fixed cover (7).
8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la longueur de ladite fraction mélangeur (M) est au moins égale au double de ladite fraction crible (C).8. Device according to any one of the preceding claims, characterized in that the length of said mixing fraction (M) is at least equal to twice said screen fraction (C).
9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit ensemble de tambour présente une pente. 9. Device according to any one of the preceding claims, characterized in that said drum assembly has a slope.
10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la motorisation dudit ensemble de tambour est faite sur ladite fraction mélangeur (M). 10. Device according to any one of the preceding claims, characterized in that the motorization of said drum assembly is made on said mixing fraction (M).
EP09749995A 2008-05-23 2009-04-01 Rotating device for pretreating continuously taken in household refuse Withdrawn EP2276584A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0802794A FR2931373A1 (en) 2008-05-23 2008-05-23 ROTARY DEVICE FOR THE PRETREATMENT OF HOUSEHOLD AND CONTINUOUSLY ASSIMILATED GARBAGE
PCT/FR2009/000387 WO2009141514A1 (en) 2008-05-23 2009-04-01 Rotating device for pretreating continuously taken in household refuse

Publications (1)

Publication Number Publication Date
EP2276584A1 true EP2276584A1 (en) 2011-01-26

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Family Applications (1)

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EP09749995A Withdrawn EP2276584A1 (en) 2008-05-23 2009-04-01 Rotating device for pretreating continuously taken in household refuse

Country Status (3)

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EP (1) EP2276584A1 (en)
FR (1) FR2931373A1 (en)
WO (1) WO2009141514A1 (en)

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Publication number Priority date Publication date Assignee Title
RU2478420C2 (en) * 2011-07-25 2013-04-10 Государственное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" ГОУ ВПО ТГТУ Method of continuous preparation of multicomponent mixes and device to this end
CN102921336A (en) * 2012-11-19 2013-02-13 大连职业技术学院 Sand sieving agitator
CN104841319B (en) * 2015-05-20 2017-03-01 佛山市东鹏陶瓷有限公司 A kind of storage glaze cylinder with diversified function and its method improving glaze slip performance

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Publication number Priority date Publication date Assignee Title
US6955265B2 (en) * 2003-05-13 2005-10-18 Steven Tse Apparatus of piercing garbage bags and classifying garbage
GB2428015B (en) * 2006-05-03 2009-05-20 Bernard Buckley Improvements In And Relating To Waste Handling

Non-Patent Citations (1)

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Title
See references of WO2009141514A1 *

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FR2931373A1 (en) 2009-11-27

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