EP0079867B1 - Washing apparatus for inert materials such as sand, gravel and the like - Google Patents
Washing apparatus for inert materials such as sand, gravel and the like Download PDFInfo
- Publication number
- EP0079867B1 EP0079867B1 EP82830280A EP82830280A EP0079867B1 EP 0079867 B1 EP0079867 B1 EP 0079867B1 EP 82830280 A EP82830280 A EP 82830280A EP 82830280 A EP82830280 A EP 82830280A EP 0079867 B1 EP0079867 B1 EP 0079867B1
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- EP
- European Patent Office
- Prior art keywords
- rotor
- materials
- washed
- buckets
- washing water
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/42—Devices therefor, other than using centrifugal force of drum or lifting wheel type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/56—Drum classifiers
Definitions
- the invention relates to an installation for washing inert materials such as sand, gravel or the like.
- bucket installations consisting of a semi-cylindrical tank containing the inert material and the washing liquid: the buckets, fixed radially to a central shaft, catch, mix and lift the material while leaving the liquid washing go through the specially made holes in the buckets and discharging the washed inert material into the adjacent compartments.
- washing basin for inert materials of cylindrical shape, which is rotated around its own horizontal axis and which is provided with several annular diaphragms making it possible to delimit as many corresponding compartments for the materials; the circumferential wall of each compartment of the basin is provided with a series of flanges forming pockets for lifting the materials and advancing them towards one or more tiles intended to pass the materials into the following compartment: said tiles being perforated to allow drainage of materials.
- the washing water is introduced into the compartment which is at one end of the basin, and it is from this same compartment that the treated materials are discharged, while it leaves the compartment situated at the end opposite of the basin and into which the materials to be treated are introduced.
- the materials to be treated are introduced into the compartment where the water is in a minor quantity and which therefore has a lower washing capacity; in addition, the mud remains, for the most part, deposited in the various compartments of the basin, so that a large quantity of water and a large motive force are required to rotate the basin and an extended period of operation.
- the object of the present invention is to propose an installation for washing inert materials, such as sand, gravel or the like, eliminating or greatly reducing these drawbacks.
- a washing installation comprising several identical rotors, operating according to the counter-current principle and rotating around the same axis, each of the rotors being composed of a compartment delimited by two annular flat diaphragms of the same width and by a cylindrical wall, which wall being provided with several angularly equidistant radial troughs, means for supplying the installation with washing water, means for loading the materials to be washed into the rotor which is located one end of the installation, means for recovering the materials washed at the outlet of the rotor which is at the other end of the installation, characterized in that the different rotors are axially spaced from one another, the axis of the rotors is inclined relative to the horizontal, the inert material is loaded into the lowest rotor, each rotor is supplied separately with clean washing water, and q ue the buckets are formed by a triangular bottom, provided with many holes for the flow of mud
- inert material to be washed introduced through the mouth of the rotor located at one end of the installation, advances against the current passing through all the rotors before being discharged through the orifice of the rotor located at the other end of the installation.
- the advantages obtained thanks to this invention consist essentially in that inert materials of any size can be washed even if very dirty; in that the consumption of washing liquid and motive energy is much lower than that of installations of known type, even compared to the quantity of washed material produced; in that the installation has a longer service life and in that it requires only reduced maintenance.
- Figure 1 is the longitudinal section of a first embodiment according to the invention
- Figure 2 is the longitudinal section of a second embodiment
- 3 shows the installation of Figures 1 and 2, in front view of the outlet side of the washed inert and in partial section
- FIG. 4 is a variant of FIG. 3.
- each rotor (1) is provided with several intermediate annular diaphragms (2a) delimiting several annular channels (3).
- the washing liquid supply pipe (7) has a drainage mouth (8) only opposite the upper annular channel (23) of each rotor (1), while the channels (3) of each rotor located below the first are filled with water overflowing from the corresponding upper channel.
- FIGS 3 and 4 of the accompanying drawings show the arrangement of the buckets (15) according to two possible orientations, namely in radial position and inclined relative to the radius of the rotor (1); in any case, the washed inert material is discharged into the adjacent annular channel (3) situated above it due to the rotation of the rotor (1).
- the inert material to be washed is brought in front of the lower annular channel or channels (3) of the lower end of the installation and the supply pipe (7) supplies the washing liquid which fills the lowest area of each channel (3) to the edge of the lower diaphragm (2) from which it flows outside or into the adjacent channel (3) located below.
- the water or washing liquid supplied continuously and in small quantities through the hose (7) flows downward, entailing the impurities removed from the inert material.
- the inert material being washed is lifted by the buckets (15) allowing the washing liquid to flow through the holes (4); by the effect of the inclination of the walls (6) and after a certain elevation, the inert material is discharged (in the direction indicated by the arrow F1 in Fig. 1) into the adjacent channel (3) located above and this , insofar as this wall protrudes from the diaphragm (2) of the corresponding channel.
- the inert material passes through the second adjacent channel (3) and, from channel (3) to channel (3) reaches the last from where it will be discharged onto a chute (14) and thus withdrawn.
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
L'invention concerne une installation de lavage de matières inertes telles que du sable, du gravier ou des matières similaires.The invention relates to an installation for washing inert materials such as sand, gravel or the like.
On sait qu'il faut laver les matières inertes, en particulier les matériaux de construction, afin d'en éliminer la boue, le filler, le limon, la poussière et les substances organiques.We know that it is necessary to wash inert materials, in particular construction materials, in order to remove mud, filler, silt, dust and organic substances.
Dans ce but, existent actuellement des installations à vis d'Archimède principalement constituées par un bac allongé, légèrement incliné par rapport à l'horizontale et dans lequel tourne la vis d'Archimède. La matière à laver est amenée en face de l'extrémité la plus basse du bac et le liquide de lavage, en général de l'eau, est apporté en correspondance de l'extrémité la plus haute du dit bac. L'alimentation étant continue, le liquide de lavage passe par dessus le bord le plus bas et entraîne les impuretés contenues dans la matière inerte qui, transportée par la vis d'Archimède, atteint l'extrémité la plus haute d'où elle est déchargée.To this end, there are currently Archimedes screw installations mainly constituted by an elongated tank, slightly inclined relative to the horizontal and in which the Archimedes screw rotates. The material to be washed is brought in front of the lowest end of the tank and the washing liquid, generally water, is brought in correspondence with the highest end of said tank. The feed being continuous, the washing liquid passes over the lowest edge and entrains the impurities contained in the inert material which, transported by the Archimedes screw, reaches the highest end from where it is discharged .
Ces installations connues à vis d'Archimède présentent le problème du lavage insuffisant de la matière inerte, surtout si très sale, dans la mesure où elle n'est lavée qu'une seule fois. Ces installations ont en outre des frais d'exploitation extrêmement élevés: en effet, elles requièrent de grandes quantités de liquide de lavage, en particulier de l'eau, chose désavantageuse en raison de la diminution toujours croissante des ressources hydriques. De plus, en raison de l'existence de l'énorme frottement, il faut une grande puissance pour que la vis d'Archimède puisse tourner et en conséquence, les palettes de celle-ci s'usent rapidement. Il faut donc remplacer fréquemment les pièces mécaniques usées. En dernier lieu, ces installations présentent un autre problème particulièrement désavantageux consistant en ce qu'elles ne peuvent pas laver des matières inertes de taille supérieure à 5-8 mm.These known installations with Archimedes present the problem of insufficient washing of the inert material, especially if very dirty, insofar as it is washed only once. These installations also have extremely high operating costs: in fact, they require large quantities of washing liquid, in particular water, which is disadvantageous due to the ever-increasing decrease in water resources. In addition, due to the existence of enormous friction, it takes a great deal of power for the Archimedes' screw to rotate and, as a result, its pallets wear out quickly. Worn mechanical parts must therefore be replaced frequently. Finally, these installations present another particularly disadvantageous problem consisting in that they cannot wash inert materials of size greater than 5-8 mm.
Il existe également d'autres installations à godets, constituées par un bac semi-cylindrique contenant la matière inerte et le liquide de lavage: les godets, fixés radialement à un arbre central, y pêchent, mélangent et soulèvent la matière tout en laissant le liquide de lavage passer par les trous spécialement ménagés dans les godets et en déchargeant la matière inerte lavée dans les compartiments adjacents.There are also other bucket installations, consisting of a semi-cylindrical tank containing the inert material and the washing liquid: the buckets, fixed radially to a central shaft, catch, mix and lift the material while leaving the liquid washing go through the specially made holes in the buckets and discharging the washed inert material into the adjacent compartments.
Ces installations ont elles aussi un grand désavantage: le frottement produit et la grande puissance motrice nécessaire au fonctionnement, dans la mesure où le sable mouillé devient très compact. De plus, le lavage est lui aussi insuffisant, surtout si les matières inertes sont très sales, de même que ces installations ne peuvent produire que de petities quantités de matière lavée à la fois. En conséquence, ces installations à godets n'ont qu'un faible rendement. En dernier lieu, comme il est parfois nécessaire, ces installations ne peuvent laver que des matières inertes de taille inférieure à 5-8 mm.These installations also have a great disadvantage: the friction produced and the great motive power necessary for the operation, insofar as the wet sand becomes very compact. In addition, washing is also insufficient, especially if the inert materials are very dirty, just as these installations can only produce small quantities of washed material at a time. Consequently, these bucket installations have only a low yield. Finally, as is sometimes necessary, these installations can only wash inert materials smaller than 5-8 mm.
On connaît également d'après le brevet USA 1824688 un bassin de lavage pour matériaux inertes, de forme cylindrique, que l'on fait tourner autour de son propre axe horizontal et qui est muni de plusieurs diaphragmes annulaires permettant de délimiter autant de compartiments correspondants pour les matériaux; la paroi en circonférence de chaque compartiment du bassin est munie d'une série de brides formant des poches pour soulever les matériaux et les faire avancer vers une ou plusieurs tuiles destinées à faire passer les matériaux dans le compartiment suivant: lesdites tuiles étant perforées pour permettre le drainage des matériaux.Also known from patent US 1824688 is a washing basin for inert materials, of cylindrical shape, which is rotated around its own horizontal axis and which is provided with several annular diaphragms making it possible to delimit as many corresponding compartments for the materials; the circumferential wall of each compartment of the basin is provided with a series of flanges forming pockets for lifting the materials and advancing them towards one or more tiles intended to pass the materials into the following compartment: said tiles being perforated to allow drainage of materials.
L'eau de lavage est introduite dans le compartiment qui se trouve à une des extrémités du bassin, et c'est de ce même compartiment que l'on décharge les matériaux traités, tandis qu'elle sort du compartiment se trouvant à l'extrémité opposée du bassin et dans lequel on introduit les matériaux à traiter. Toutefois, avec un tel type de bassin de lavage, les matériaux à traiter sont introduits dans le compartiment où l'eau se trouve en quantité mineure et qui a donc une capacité inférieure de lavage; en outre, la boue reste, en grande partie, déposée dans les divers compartiments du bassin, de sorte qu'il faut une grande quantité d'eau et une grande force motrice pour faire tourner le bassin et une période prolongée de fonctionnement.The washing water is introduced into the compartment which is at one end of the basin, and it is from this same compartment that the treated materials are discharged, while it leaves the compartment situated at the end opposite of the basin and into which the materials to be treated are introduced. However, with such a type of washing basin, the materials to be treated are introduced into the compartment where the water is in a minor quantity and which therefore has a lower washing capacity; in addition, the mud remains, for the most part, deposited in the various compartments of the basin, so that a large quantity of water and a large motive force are required to rotate the basin and an extended period of operation.
La présente invention a pour but de proposer une installation de lavage de matières inertes, telles que du sable, du gravier ou des matières similaires éliminant ou réduisant fortement ces inconvénients.The object of the present invention is to propose an installation for washing inert materials, such as sand, gravel or the like, eliminating or greatly reducing these drawbacks.
Nous avons atteint ce résultat, selon l'invention, avec une installation de lavage comprenant plusieurs rotors identiques, fonctionnant selon le principe à contre-courant et tournant autour d'un même axe, chacun des rotors étant composé d'un compartiment délimité par deux diaphragmes plans annulaires de même largeur et par une paroi cylindrique, laquelle paroi étant munie de plusieurs augets radiaux angulairement équidistants, des moyens pour alimenter l'installation en eau de lavage, des moyens pour charger les matériaux à laver dans le rotor qui se trouve à l'une des extrémité de l'installation, des moyens pour récupérer les matériaux lavés à la sortie du rotor qui se trouve à l'autre extrémité de l'installation caractérisée par le fait que les différents rotors sont espacés axialement les uns des autres, l'axe des rotors est incliné par rapport à l'horizontale, la matière inerte est chargée dans le rotor le plus bas, chaque rotor est alimenté séparément en eau de lavage propre, et que les augets sont formés par un fond de forme triangulaire, pourvu de nombreux trous pour l'écoulement de la boue et prolongé par une paroi faisant un angle avec le fond et s'étendant à l'extérieur du diaphragme annulaire qui est tourné vers la sortie des matériaux, pour permettre le transfert des matériaux, sans eau de lavage, dans le rotor adjacent correspondant.We have achieved this result, according to the invention, with a washing installation comprising several identical rotors, operating according to the counter-current principle and rotating around the same axis, each of the rotors being composed of a compartment delimited by two annular flat diaphragms of the same width and by a cylindrical wall, which wall being provided with several angularly equidistant radial troughs, means for supplying the installation with washing water, means for loading the materials to be washed into the rotor which is located one end of the installation, means for recovering the materials washed at the outlet of the rotor which is at the other end of the installation, characterized in that the different rotors are axially spaced from one another, the axis of the rotors is inclined relative to the horizontal, the inert material is loaded into the lowest rotor, each rotor is supplied separately with clean washing water, and q ue the buckets are formed by a triangular bottom, provided with many holes for the flow of mud and extended by a wall at an angle with the bottom and extending outside the annular diaphragm which is turned towards the material outlet, to allow materials to be transferred, without washing water, into the corresponding adjacent rotor.
Ainsi la matière inerte à laver, introduite par la bouche du rotor situé à une extrémité de l'installation, avance à contre-courant passant par tous les rotors avant d'être déchargée par l'orifice du rotor situé à l'autre extrémité de l'installation. Les avantages obtenus grâce à cette invention consistent essentiellement en ce que l'on peut laver des matières inertes de toute taille même si très sales; en ce que la consommation de liquide de lavage et d'énergie motrice est nettement inférieure à celle des installations de type connu et ce, même par rapport à la quantité de matière lavée produite; en ce que l'installation a une durée de vie plus longue et en ce qu'elle ne requiert qu'une maintenance réduite.Thus the inert material to be washed, introduced through the mouth of the rotor located at one end of the installation, advances against the current passing through all the rotors before being discharged through the orifice of the rotor located at the other end of the installation. The advantages obtained thanks to this invention consist essentially in that inert materials of any size can be washed even if very dirty; in that the consumption of washing liquid and motive energy is much lower than that of installations of known type, even compared to the quantity of washed material produced; in that the installation has a longer service life and in that it requires only reduced maintenance.
Dans ce qui suit, l'invention est exposée plus en détail à l'aide des dessins en annexe représentant seulement un mode d'exécution.In the following, the invention is explained in more detail with the aid of the accompanying drawings showing only one embodiment.
La figure 1 est la coupe longitudinale d'un premier mode de réalisation selon l'invention; la figure 2 est la coupe longitudinale d'une deuxième forme de réalisation; la figure 3 représente l'installation des Figures 1 et 2, en vue frontale du côté de sortie de l'inerte lavée et en coupe partielle; la figure 4 est une variante de la figure 3.Figure 1 is the longitudinal section of a first embodiment according to the invention; Figure 2 is the longitudinal section of a second embodiment; 3 shows the installation of Figures 1 and 2, in front view of the outlet side of the washed inert and in partial section; FIG. 4 is a variant of FIG. 3.
Par référence à la Fig. 1 des dessins en annexe, l'installation objet de l'invention comprend essentiellement:
- - plusieurs rotors tubulaires (1) placés à distance les uns à côté des autres et fixés au même arbre (13), légèrement incliné par rapport à l'horizontale; chaque rotor est muni de deux diaphragmes transversaux et annulaires (2) délimitant un canal annulaire (3). Dans chaque canal annulaire (3) sont fixés plusieurs augets (15) ayant chacun un fond (5) triangulaire et une paroi (6) continue, pliée en angle par rapport au fond (5) dépassant ou non de ce canal annulaire (3). Cette paroi (6) est inclinée par rapport à l'arbre (13) des rotors (1) et se développe selon cet arbre de façon à ce que, de préférence, l'extrémité libre soit dans le canal annulaire (3) du rotor (1) adjacent situé plus haut; la paroi (6) du rotor (1) situé à l'extrémité supérieure de l'installation dépasse en dehors de celle-ci de façon à ce que les moyens de remassage et de transport (14) de la matière inerte lavée puissent la recueillir en fin de lavage. Du point de vue de la construction, chacune de ces parois (6) peut ne pas dépasser du rotor correspondant (1) à condition que son inclinaison par rapport à l'arbre (13) soit telle qu'elle permette à la matière inerte de s'écouler dans le canal annulaire (3) successif ou en dehors de l'installation lorsqu'elle se trouve dans le dernier rotor (1).
- - Several tubular rotors (1) placed at a distance next to each other and fixed to the same shaft (13), slightly inclined relative to the horizontal; each rotor is provided with two transverse and annular diaphragms (2) delimiting an annular channel (3). In each annular channel (3) are fixed several buckets (15) each having a triangular bottom (5) and a continuous wall (6), bent at an angle relative to the bottom (5) projecting or not from this annular channel (3) . This wall (6) is inclined relative to the shaft (13) of the rotors (1) and develops along this shaft so that, preferably, the free end is in the annular channel (3) of the rotor (1) adjacent located above; the wall (6) of the rotor (1) situated at the upper end of the installation protrudes outside of it so that the means for collecting and transporting (14) the washed inert material can collect it at the end of washing. From the construction point of view, each of these walls (6) may not protrude from the corresponding rotor (1) provided that its inclination relative to the shaft (13) is such that it allows the inert material to flow in the successive annular channel (3) or outside the installation when it is in the last rotor (1).
Conformément à la Fig. 3 des dessins en annexe, plusieurs galets (12) ont été prévus pour servir de support et faire tourner les rotors (1).
- - Un tuyau (7) d'alimentation en liquide lavage passe, de préférence en sens axial, dans les rotors et est muni de plusieurs bouches (8) de sortie du liquide (9) de lavage, Le mode d'exécution de la figure 1 prévoit une bouche (8) par rotor (1).
- - Des dispositifs d'amenée de la matière inerte sale (10) situés en face de l'extrémité inférieure de l'installation et qui sont constitués soit par un tapis transporteur (11) soit par une trémie ou similaire.
- - A pipe (7) for supplying washing liquid passes, preferably axially, through the rotors and is provided with several outlets (8) for outlet of the washing liquid (9), The embodiment of the figure 1 provides a mouth (8) per rotor (1).
- - Dirty inert material supply devices (10) located opposite the lower end of the installation and which are constituted either by a conveyor belt (11) or by a hopper or the like.
Par référence à la figure 2 des dessins en annexe, chaque rotor (1) est muni de plusieurs diaphragmes annulaires intermédiaires (2a) délimitant plusieurs canaux annulaires (3). De plus, le tuyau d'alimentation (7) en liquide de lavage présente une bouche (8) d'écoulement seulement en face du canal annulaire (23) supérieur de chaque rotor (1), alors que les canaux (3) de chaque rotor situés en dessous du premier sont remplis par l'eau débordant du canal supérieur correspondant.With reference to Figure 2 of the accompanying drawings, each rotor (1) is provided with several intermediate annular diaphragms (2a) delimiting several annular channels (3). In addition, the washing liquid supply pipe (7) has a drainage mouth (8) only opposite the upper annular channel (23) of each rotor (1), while the channels (3) of each rotor located below the first are filled with water overflowing from the corresponding upper channel.
Les figures 3 et 4 des dessins en annexe montrent l'agencement des augets (15) selon deux orientations possibles, à savoir en position radiale et inclinée par rapport au rayon du rotor (1); en tout cas, la matière inerte lavée est déchargée dans le canal annulaire (3) adjacent et situé au-dessus en raison de la rotation du rotor (1).Figures 3 and 4 of the accompanying drawings show the arrangement of the buckets (15) according to two possible orientations, namely in radial position and inclined relative to the radius of the rotor (1); in any case, the washed inert material is discharged into the adjacent annular channel (3) situated above it due to the rotation of the rotor (1).
Le fonctionnement est le suivant: la matière inerte à laver est amenée en face du ou des canaux annulaires (3) inférieurs de l'extrémité inférieure de l'installation et le tuyeau (7) d'alimentation fournit le liquide de lavage qui remplit la zone la plus basse de chaque canal (3) jusqu'au bord du diaphragme (2) inférieur d'où il s'écoule en dehors ou dans le canal (3) adjacent situé au-dessous. Après avoir débordé dans les canaux appropriés, l'eau ou le liquide de lavage apporté continuellement et en petites quantités par le tuyau (7), s'écoule vers le bas entraînant les impuretés retirées de la matière inerte. Par effet de la rotation des rotors (1), la matière inerte en cours de lavage est soulevée par les augets (15) laissant le liquide de lavage s'écouler par les trous (4); par effet de l'inclinaison des parois (6) et après une certaine élévation, la matière inerte est déchargée (dans le sens indiqué par la flèche F1 de la Fig. 1) dans la canal (3) adjacent situé au-dessus et ce, dans la mesure où cette paroi dépasse du diaphragme (2) du canal correspondant. De cette façon, après avoir été déchargée par le tapis transporteur (11) et lavée dans le premier canal (3) inférieur, la matière inerte passe dans le deuxième canal (3) adjacent et, de canal (3) en canal (3) atteint le dernier d'où elle sera déchargée sur une goulotte (14) et ainsi retirée.The operation is as follows: the inert material to be washed is brought in front of the lower annular channel or channels (3) of the lower end of the installation and the supply pipe (7) supplies the washing liquid which fills the lowest area of each channel (3) to the edge of the lower diaphragm (2) from which it flows outside or into the adjacent channel (3) located below. After having overflowed into the appropriate channels, the water or washing liquid supplied continuously and in small quantities through the hose (7) flows downward, entailing the impurities removed from the inert material. By effect of the rotation of the rotors (1), the inert material being washed is lifted by the buckets (15) allowing the washing liquid to flow through the holes (4); by the effect of the inclination of the walls (6) and after a certain elevation, the inert material is discharged (in the direction indicated by the arrow F1 in Fig. 1) into the adjacent channel (3) located above and this , insofar as this wall protrudes from the diaphragm (2) of the corresponding channel. In this way, after being discharged from the conveyor belt (11) and washed in the first lower channel (3), the inert material passes through the second adjacent channel (3) and, from channel (3) to channel (3) reaches the last from where it will be discharged onto a chute (14) and thus withdrawn.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82830280T ATE27924T1 (en) | 1981-11-12 | 1982-11-12 | WASHING PLANT FOR INERT MATERIALS SUCH AS SAND, GRAVEL AND THE LIKE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2503081 | 1981-11-12 | ||
| IT25030/81A IT1194146B (en) | 1981-11-12 | 1981-11-12 | INERT WASHING EQUIPMENT, SUCH AS SAND, GRAVEL AND SIMILAR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0079867A1 EP0079867A1 (en) | 1983-05-25 |
| EP0079867B1 true EP0079867B1 (en) | 1987-06-24 |
Family
ID=11215477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82830280A Expired EP0079867B1 (en) | 1981-11-12 | 1982-11-12 | Washing apparatus for inert materials such as sand, gravel and the like |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4472272A (en) |
| EP (1) | EP0079867B1 (en) |
| AT (1) | ATE27924T1 (en) |
| DE (1) | DE3276620D1 (en) |
| IT (1) | IT1194146B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH022444Y2 (en) * | 1985-09-13 | 1990-01-22 | ||
| JPS6246438Y2 (en) * | 1985-09-25 | 1987-12-15 | ||
| US5089123A (en) * | 1989-09-14 | 1992-02-18 | Metanetix, Inc. | Apparatus for continuous removal of materials from a liquid |
| US5173122A (en) * | 1991-01-04 | 1992-12-22 | Tilby Sydney E | Apparatus for washing sugarcane billets |
| US5343596A (en) * | 1991-01-29 | 1994-09-06 | Ankal Pty. Limited | Inclined rotatable drums and method for grading fibrous material |
| DE4436002A1 (en) * | 1994-10-08 | 1996-04-11 | F & F Filter Und Foerdertechni | Conveyor for fluid media, e.g. cooling and lubricating fluids |
| DE19601262C2 (en) * | 1996-01-16 | 1998-10-01 | Horst Brenner | Device for separating sand and gravel from washed-out residual concrete |
| GB9722128D0 (en) * | 1997-10-21 | 1997-12-17 | Pronatur Products Limited | Method and apparatus for recycling an aggregate contaminated with a hydrocarbon |
| GB9828333D0 (en) * | 1998-12-23 | 1999-02-17 | Crown Cork & Seal Tech Corp | Rinsing device |
| SE513214C2 (en) * | 1999-06-29 | 2000-07-31 | Potato Processing Mach | Rinse equipment for water rinsing slices of root vegetables when slicing them |
| JP3231748B2 (en) * | 1999-12-14 | 2001-11-26 | 栄工機株式会社 | Stock washing equipment |
| DE10012719A1 (en) * | 2000-03-16 | 2001-10-04 | Fraunhofer Ges Forschung | Device to clean and dry work pieces; has work piece holders in transport wheels, which are rotated to convey work pieces to working area of cleaning unit before unloading |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1422309A (en) * | 1919-07-16 | 1922-07-11 | U S Electrogalvanizing Company | Apparatus for cleaning articles |
| GB218490A (en) * | 1923-07-10 | 1924-07-10 | Edward Wilson Dixon | Improvements in or relating to washing, screening and separating apparatus |
| US1824688A (en) * | 1930-01-30 | 1931-09-22 | Richard W Rigler | Washer |
| US1943861A (en) * | 1931-06-18 | 1934-01-16 | Friberg Harry Adolph | Sand washing apparatus |
| GB414809A (en) * | 1933-03-11 | 1934-08-16 | James Peebles | Improvements in and connected with machines for washing sand, gravel, and other likematerials |
| US2074788A (en) * | 1935-06-26 | 1937-03-23 | Delinting Cotton Seed Company | Means for delinting cottonseed or the like |
| DE680065C (en) * | 1936-02-13 | 1939-08-21 | Hardinge Company Inc | Washing and sorting device |
| US2286132A (en) * | 1940-11-30 | 1942-06-09 | Michael P Walle | Separator |
| US2375499A (en) * | 1943-08-05 | 1945-05-08 | Dow Chemical Co | Rotary lime treating apparatus |
| FR2395072A1 (en) * | 1977-06-21 | 1979-01-19 | Akae Kikai Kogyo Co | Wet sand grader unit - has surplus water outlet on rotary drum end with graded sand discharge on other |
| IT1120688B (en) * | 1979-08-10 | 1986-03-26 | Pulimetal Di Guido Florioli S | METALLIC MATERIAL RECOVERY PROCEDURE AND PLANT CONTAINED IN SCRAPS FROM THE CRUSHING OF MOTOR VEHICLES |
| US4399828A (en) * | 1981-10-29 | 1983-08-23 | Kontos Nicholas G | Methods and apparatus for treating work pieces |
-
1981
- 1981-11-12 IT IT25030/81A patent/IT1194146B/en active
-
1982
- 1982-11-12 US US06/441,147 patent/US4472272A/en not_active Expired - Lifetime
- 1982-11-12 EP EP82830280A patent/EP0079867B1/en not_active Expired
- 1982-11-12 AT AT82830280T patent/ATE27924T1/en not_active IP Right Cessation
- 1982-11-12 DE DE8282830280T patent/DE3276620D1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT8125030A0 (en) | 1981-11-12 |
| ATE27924T1 (en) | 1987-07-15 |
| IT1194146B (en) | 1988-09-14 |
| EP0079867A1 (en) | 1983-05-25 |
| DE3276620D1 (en) | 1987-07-30 |
| US4472272A (en) | 1984-09-18 |
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