EP3274112B1 - Dispositif de refroidissement de sable de moulage - Google Patents

Dispositif de refroidissement de sable de moulage Download PDF

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Publication number
EP3274112B1
EP3274112B1 EP16710969.3A EP16710969A EP3274112B1 EP 3274112 B1 EP3274112 B1 EP 3274112B1 EP 16710969 A EP16710969 A EP 16710969A EP 3274112 B1 EP3274112 B1 EP 3274112B1
Authority
EP
European Patent Office
Prior art keywords
sand
chamber
sifter
casting sand
rotary speed
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.)
Active
Application number
EP16710969.3A
Other languages
German (de)
English (en)
Other versions
EP3274112A1 (fr
Inventor
Andreas Seiler
Stefan Gerl
Feng Li
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.)
Maschinenfabrik Gustav Eirich GmbH and Co KG
Original Assignee
Maschinenfabrik Gustav Eirich GmbH and Co KG
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 Maschinenfabrik Gustav Eirich GmbH and Co KG filed Critical Maschinenfabrik Gustav Eirich GmbH and Co KG
Priority to SI201630889T priority Critical patent/SI3274112T1/sl
Priority to PL16710969T priority patent/PL3274112T3/pl
Publication of EP3274112A1 publication Critical patent/EP3274112A1/fr
Application granted granted Critical
Publication of EP3274112B1 publication Critical patent/EP3274112B1/fr
Priority to HRP20201389TT priority patent/HRP20201389T1/hr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/82—Pan-type mixers, i.e. mixers in which the stirring elements move along the bottom of a pan-shaped receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/85—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with two or more stirrers on separate shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/3204—Motor driven, i.e. by means of an electric or IC motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • 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
    • B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
    • B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
    • B22C5/0422—Devices having a fixed receptable with rotating tools, some or all of these tools being rolls or balls loosely mounted on their axis or loose balls in contact with the side wall or the bottom of the receptacle, e.g. with aerating means; "Devices of the Muller type"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
    • B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
    • B22C5/044—Devices having a vertical stirrer shaft in a fixed receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/18—Plants for preparing mould materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/98—Cooling

Definitions

  • the present invention relates to a device for cooling warm foundry sand. Such devices are also referred to as molding sand coolers.
  • Used foundry sand can be reused if the foundry sand is processed. To do this, it is necessary to cool the used sand.
  • Such a device is for example from the DE 1 508 698 known.
  • the device described there consists of a mixing container and has two vertically arranged drive shafts which carry a mixing tool.
  • the foundry mold sand to be cooled is introduced into the mixing container on one side and removed on the other side. While the foundry sand to be cooled is in the device, the foundry sand is mixed using the mixing tools.
  • the mixing container has an opening for supplying air directly on the container base in the container wall.
  • the appropriately cooled molding sand can be prepared for the subsequent use with the addition of new sand, bentonite, carbon and water.
  • Cooling drums, fluidized bed coolers or mixing coolers are used for this purpose, in which either molding sand that is to be processed continuously is supplied or in which batches, i.e. discontinuously, the corresponding molding sand is fed.
  • the coolers described have in common that the hot and dry sand introduced into the coolers, generally into a sand chamber, is moistened by spraying in water and then cooled by passing large amounts of air through it and using evaporative cooling from about 70 to 100 ° C to about 45 ° C.
  • the appropriately cooled sand leaves the cooler with a humidity of approx. 1 to 2%.
  • the corresponding coolers generally have a sand chamber which has an air inlet optionally with a fan for supplying air into the sand chamber and an air outlet optionally with a fan for extracting air from the sand chamber.
  • this object is achieved by a molding sand cooler according to claim 1.
  • a dynamic wind sifter is constructed in such a way that a centrifugal force field is realized by it.
  • the air which may be loaded with sand particles, is then sucked against the centrifugal force inside the dynamic air classifier. It is therefore possible with the help of an air classifier, if this is operated at a correspondingly high speed, to remove the solid particles from the exhaust air stream, so that they remain in the sand chamber or can be returned to it.
  • the dynamic air classifier has a classifying wheel which can be rotated about an axis of rotation, which has an outlet substantially surrounding the axis of rotation, which is connected to the air outlet, and which has at least one inlet which is not arranged on the axis of rotation.
  • the classifying wheel can be cylindrical, conical or frustoconical, the at least one inlet being arranged on the lateral surface of the classifying wheel.
  • the classifying wheel has a large number of inlet openings.
  • the lateral surface can have a large number of holes.
  • the classifying wheel can have a plurality of lamellae which are spaced apart from one another, so that the inlets are formed by the distance between the lamellae.
  • a centrifugal force field is generated by the rotation of the classifier wheel, so that a centrifugal force acts on all particles that are inside the classifier wheel.
  • the centrifugal force is opposed by the force exerted on the particles by the air flow into the classifier wheel. Since the centrifugal force increases in proportion to the particle mass, particles with a certain limit size are rejected by the wind sifter, since for them the centrifugal force is greater than the force applied by the air flow.
  • the axis of rotation can be aligned vertically, horizontally or inclined with respect to the vertical.
  • the molding sand cooler has at least two dynamic air classifiers, since it has been shown that the reduction in sand discharge can be carried out more effectively with a plurality of air classifiers. Alternatively, it would of course also be possible to make the single air classifier larger. However, the formation of the molding sand cooler with several air classifiers has proven to be more effective.
  • the molding sand cooler can have a molding sand inlet via which molding sand can be fed into the sand chamber and a molding sand outlet via which molding sand can be removed from the sand chamber, in which case one wind sifter is best arranged closer to the molding sand outlet than the other wind sifter.
  • the air classifiers can have a different size and / or can be operated at different speeds in order to take account of the progressive cooling and the associated change in the consistency of the molding sand during the continuous cooling process.
  • the molding sand cooler additionally has a static wind sifter, preferably a deflection separator.
  • the static air classifier is connected upstream of the dynamic wind classifier.
  • the static wind sifter differs from the dynamic wind sifter in that the sifter is not rotated to create a centrifugal field. Instead, for example, the gravitational force and the flow resistance force caused by the air flow can ensure the separation of coarse and fine material.
  • a deflection separator can also be used, which uses a separation by the inertial forces at a deflection.
  • the flow flow follows the deflection, so that inertial forces occur in the area of the deflection, which leads to a separation of coarse and fine material.
  • static windsifters are not as effective as dynamic windsifters.
  • the maximum capacity of a dynamic air classifier is quickly reached, especially when large amounts of sand are discharged with the air.
  • the dynamic air classifier can be relieved by connecting a static air classifier, which already preselects coarse material.
  • the molding sand cooler has a classifying chamber in which the dynamic wind classifier is arranged.
  • the sand chamber is connected to the classifying chamber via a flow channel, the cross section of the flow channel decreasing in the direction of the classifying chamber.
  • the narrowing of the flow cross section leads to an increase in the flow speed.
  • the flow channel is advantageously arranged such that the fluid flow directed from the sand chamber via the flow channel into the classifier wheel is directed at a wall of the classifier chamber and not at the dynamic classifier. This results in a sharp deflection of the gas flow, since the air is sucked out by the dynamic air classifier.
  • the classifier chamber is connected to the sand chamber via a return channel, preferably a conveyor system, and preferably a screw conveyor, is provided in order to convey bulk material collected on the bottom of the classifier chamber into the sand chamber.
  • a return channel preferably a conveyor system, and preferably a screw conveyor
  • a static air classifier is implemented in the classifier chamber leads to an accumulation of the bulk material, which was rejected by the two classifiers.
  • This bulk material can be brought into the sand cooler.
  • a flap or a double flap can be provided, for example, with which the accumulated bulk material can be returned from the classifying chamber to the sand chamber.
  • An embodiment is particularly preferred in which a conveyor system conveys bulk material that has accumulated permanently or at regular intervals back into the sand chamber.
  • a speed device for controlling or regulating the speed of the dynamic air classifier.
  • the separation between coarse and fine material can be set.
  • the limit size can be set by the speed. The higher the speed, the smaller the limit and vice versa.
  • the speed device is preferably designed such that the speed is so high that all particles in the sand chamber are completely separated.
  • a device for detecting the amount of air flow through the air outlet can be provided, the detected amount of air flow being made available to the speed device, so that the speed device can control or regulate the speed as a function of the detected amount of air flow.
  • the limit variable described, i.e. the size to which particles are rejected by the air classifier is determined not only by the speed of the air classifier, but also by the flow velocity of the air flow from the air inlet to the air outlet. If, for example, the flow speed decreases, the speed of the air classifier can be reduced, which saves energy.
  • the speed device can also be designed such that the speed is increased during the molding sand cooling.
  • the speed can be reduced or even the rotation can be stopped. The speed can then be increased in the course of the molding sand cooling and adapted to the different preparation phases.
  • a device for detecting the particle discharge and / or the particle size distribution via the air outlet can be provided, the detected particle discharge being made available to the speed device, so that the speed device can be designed such that the speed is controlled or dependent on the detected particle discharge is regulated.
  • a device for supplying water into the sand chamber can be provided, wherein preferably a water control device is provided, to which the detected particle discharge and possibly the rotational speed of the dynamic wind classifier is made available, and which is designed such that the amount of water supplied is dependent on from the detected particle discharge and possibly the speed of the dynamic air classifier.
  • particle discharge detection is used indirectly as a moisture measurement. The drier the sand in the cooler, the higher the solids discharge through the air classifier. If a high solids discharge is found, this means that the sand is relatively dry and water may have to be added.
  • a moisture sensor is provided for detecting the moisture of the sand in the sand chamber, the moisture sensor preferably being connected to the speed device and being designed such that the speed is regulated or controlled as a function of the detected moisture. If a moisture sensor is present, as described here, a particle discharge sensor does not necessarily have to be present, because due to the relationship between moisture and particle discharge, the moisture sensor can also be used to control the speed device.
  • the rotational speed device is designed such that it controls or regulates the rotational speed in such a way that large particles whose grain size is larger than a predetermined limit grain size are separated by the air classifier, while smaller particles with a grain size which is smaller than the predetermined limit grain size, are withdrawn via the air outlet.
  • a size between 120 ⁇ m and 10 ⁇ m and particularly preferably between 30 ⁇ m and 60 ⁇ m is preferably selected as the limit grain size.
  • This measure makes it possible, for example, to remove only the additives such as carbon and bentonite from the molding sand to be processed, while sand components remain in the molding sand.
  • the sand-free bentonite and carbon thus recovered can be fed back in the subsequent treatment process.
  • FIG. 1 a first embodiment of a molding sand cooler 1 is shown. This has a sand chamber 2 and an air inlet 3 with a corresponding fan 4 and an air outlet 5 with a corresponding fan 6.
  • a molding sand inlet 7, via which molding sand to be cooled can be introduced into the sand chamber 2, and a molding sand outlet 8, via which molding sand can be removed from the chamber, are provided.
  • Two motor-driven mixing tools 9 are arranged within the sand chamber 2.
  • the connection to the air outlet 5 is embedded in the upper wall of the sand chamber 2.
  • a dynamic wind classifier 10 is arranged in this area and can be rotated about its vertical axis.
  • the classifier here consists of an essentially cylindrical wheel, on the outer surface of which a plurality of spaced-apart lamellae are arranged, so that air can flow radially inward through the lamellae in order to be suctioned off via the air outlet 5.
  • the embodiment shown has an air quantity sensor 14, with which the air quantity extracted via the air outlet 5 can be measured.
  • a particle discharge sensor 13 is provided, which can be designed, for example, as a triboelectric filter monitor or particle counter or as an online particle size measuring device.
  • a moisture sensor 15 is arranged in the area of the sand chamber 2. The sensors are all connected to a control and regulating unit 12, which evaluates the corresponding measurement signals and, based on the measurement, adjusts the speed of the motor 11 in order to set the desired limit grain size.
  • FIG. 2 A second embodiment of the invention is shown, which essentially differs from the embodiment of FIG Figure 1 distinguishes that two dynamic air classifiers 10 ′ and 10 ′′ are arranged here, each of which is connected to the air outlet 5 via separate feed lines.
  • the dynamic wind classifier 10 ′ is arranged closer to the molding sand inlet 7 than the other dynamic air classifier 10 ′′.
  • the shape of the dynamic air classifier can be selected differently. While the air classifier 10 'has the shape of a truncated cone and also has lamellae, the dynamic air classifier 10 "is again cylindrical, but has a large number of holes in its lateral surface.
  • the geometry of the dynamic air classifier can be adjusted depending on the desired process.
  • FIG 3 a third embodiment of the invention is shown. This differs from the previous embodiments essentially in that two dynamic air classifiers 10 ′ ′′, which are of identical design, are connected to the air outlet via the same air outlet line 5.
  • FIG 4 a fourth embodiment of the invention is shown.
  • the sifter 10 is not arranged inside the sand chamber 2, but in a separate sifter chamber 16.
  • the sifter chamber 16 is connected to the sand chamber 2 via a connecting channel 17 that tapers in the direction of flow. Due to the tapered design of the connecting channel 17, the flow rate of the air flow increases in the direction of the classifying chamber 16.
  • the arrangement shown here forms a sharp deflection at the end of the connecting channel 17, so that part of the sand, namely essentially the parts of the sand that cannot follow the air flow in the area of the sharp deflection due to the inertial forces, bounce off the wall 18 and be slowed down. These sand particles then fall to the bottom of the classifier chamber 16.
  • the remaining air-sand stream is then passed through the classifier 10, which rotates here about a horizontal axis, through which sand parts, the diameter of which is larger than a limit grain size, are also rejected.
  • the particles, which are smaller, are drawn off via the air outlet 5.
  • the particles accumulating at the bottom of the classifying chamber 16 are conveyed back into the sand chamber 2 with the aid of the conveyor system 17 designed here as a screw conveyor.
  • Figure 5 shows a fifth embodiment in which the molding sand cooling takes place continuously.
  • a fluidized bed 19 is arranged inside the sand chamber 2, so that molding sand, which is introduced via the molding sand inlet 7, is gradually but continuously transported towards the molding sand outlet 8 via the fluidized bed 19. During this transport, a large amount of air is fed into the sand chamber via the air inlet 3 and discharged via the air outlet 5.
  • a dynamic classifier 10 is interposed.
  • FIG. 6 a sixth embodiment of the invention is shown. The entire process of molding sand preparation can be explained using this embodiment.
  • Used molding sand 20 is introduced into the sand chamber 2 via the molding sand inlet 7.
  • the molding sand cooler essentially corresponds to the embodiment of FIG Figure 1 , however, a speed control is provided which makes a separation between coarse and fine goods in the manner according to the invention.
  • the molding sand to be cooled in the sand chamber is optionally mixed with water and then flowed through with a large amount of air which is introduced into the sand chamber 2 via the air inlet 3.
  • the air is passed through the dynamic classifier 10, via the connecting line 25 and via a filter 23 via the air outlet 5.
  • the classifier 10 is set by means of the control device in such a way that sand portions, ie particles with a size that is greater than 100 ⁇ m, are rejected by the classifier. However, smaller particles are allowed to pass through the classifier. These are essentially bentonite and carbon. These are filtered off in the filter 23 and fed into the weighing device 24. The amount of the bentonite-carbon mixture deposited in the weighing device 24 is measured and, if necessary, corrected by adding new bentonite 21 or carbon 22. As soon as the molding sand within the sand chamber 2 is cooled to the desired temperature of approximately 45 °, the sand can be transferred to the weighing device 27 via the molding sand outlet 8.
  • bentonite and carbon in the desired composition can then be supplied via the weighing device 24. If necessary, new sand 20 must also be added.
  • the resulting mixture is then fed to a processing mixer 28 and, if necessary, the water content of the molding sand in the processing mixer 28 is adjusted via the water supply 29.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Combined Means For Separation Of Solids (AREA)

Claims (16)

  1. Dispositif de refroidissement de sable de moulage comportant une chambre de sable (2) présentant une entrée d'air (3) et une sortie d'air (5), dans lequel l'entrée d'air (3) est pourvue d'un ventilateur destiné à l'amenée d'air dans la chambre de sable (2) et/ou la sortie d'air (5) est pourvue d'un ventilateur destiné à l'aspiration de l'air hors de la chambre de sable, caractérisé en ce qu'est prévu un séparateur à air dynamique (10) pouvant pivoter autour d'un axe, disposé à l'intérieur du dispositif de refroidissement de sable de moulage et actionnable de telle manière que sensiblement l'intégralité du flux d'air quittant la chambre de sable (2) par la sortie d'air (5) est guidée à travers le séparateur à air dynamique (10) et les particules solides sont éliminées du flux d'air sortant et restent dans la chambre de sable ou peuvent être recyclées dans celle-ci.
  2. Dispositif de refroidissement de sable de moulage selon la revendication 1, caractérisé en ce que le séparateur à air dynamique (10) comporte une roue de séparation qui peut pivoter autour d'un axe de rotation, et qui présente une sortie entourant sensiblement l'axe de rotation, laquelle est reliée à la sortie d'air (5) et comporte au moins une entrée qui n'est pas disposée sur l'axe de rotation.
  3. Dispositif de refroidissement de sable de moulage selon la revendication 2, caractérisé en ce que la roue de séparation est de forme cylindrique, conique ou tronconique, l'entrée, au moins au nombre de une, étant disposée sur la surface d'enveloppe de la roue de séparation.
  4. Dispositif de refroidissement de sable de moulage selon l'une des revendications 2 à 3, caractérisé en ce que l'axe de rotation est orienté verticalement, horizontalement ou incliné par rapport à la verticale.
  5. Dispositif de refroidissement de sable de moulage selon l'une des revendications 2 à 4, caractérisé en ce que le dispositif de refroidissement de sable de moulage (1) est pourvu d'une entrée de sable de moulage (7), par laquelle du sable de moulage peut être amené dans la chambre de sable (2), et d'une sortie de sable de moulage (8) par laquelle du sable de moulage peut être prélevé de la chambre de sable (2), au moins deux séparateurs à air dynamiques (10) étant prévus, chacun comportant une roue de séparation pouvant pivoter autour d'un axe de rotation, un séparateur à air étant de préférence situé plus près de la sortie de sable de moulage (8) que l'autre séparateur à air.
  6. Dispositif de refroidissement de sable de moulage selon la revendication 5, caractérisé en ce que les deux séparateurs à air (10) sont pourvus d'entraînements conçus de manière à permettre le fonctionnement des séparateurs à air à des vitesses différentes.
  7. Dispositif de refroidissement de sable de moulage selon l'une des revendications 1 à 6, caractérisé en ce qu'est monté en amont du séparateur à air dynamique (10) un séparateur à air statique, de préférence un déflecteur.
  8. Dispositif de refroidissement de sable de moulage selon la revendication 7, caractérisé en ce que le dispositif de refroidissement de sable de moulage (1) comprend une chambre de séparateur (16) dans laquelle est disposé le séparateur à air dynamique (10) et la chambre de sable (2) est reliée à la chambre de séparateur (16) par l'intermédiaire d'un canal d'écoulement dont la section transversale diminue en direction de la chambre de séparateur (16), le canal d'écoulement étant de préférence disposé de telle sorte que le courant de fluide guidé depuis la chambre de sable vers la roue de séparateur via le canal d'écoulement est dirigé sur une paroi de la chambre de séparateur (16) et non sur le séparateur dynamique.
  9. Dispositif de refroidissement de sable de moulage selon la revendication 8, caractérisé en ce que la chambre de séparateur (16) est reliée à la chambre de sable (2) via un canal de retour.
  10. Dispositif de refroidissement de sable de moulage selon la revendication 8 ou 9, caractérisé en ce qu'est prévue une installation de transport (17), idéalement un convoyeur à vis sans fin pour transporter la matière en vrac accumulée sur le fond de la chambre de séparateur (16) dans la chambre de sable (2).
  11. Dispositif de refroidissement de sable de moulage selon l'une des revendications 1 à 10, caractérisé en ce qu'est prévu un dispositif de vitesse (12) destiné à commander ou réguler la vitesse du séparateur à air dynamique (10).
  12. Dispositif de refroidissement de sable de moulage selon la revendication 11, caractérisé en ce qu'est prévu un dispositif (14) de détection du débit d'air à travers la sortie d'air (5), le débit d'air détecté étant fourni au dispositif de vitesse (12), le dispositif de vitesse étant de préférence conçu de telle sorte que la vitesse peut être commandée ou régulée en fonction du débit d'air détecté.
  13. Dispositif de refroidissement de sable de moulage selon la revendication 11 ou 12, caractérisé en ce que le dispositif de refroidissement de sable de moulage (1) est un dispositif de refroidissement de sable de moulage discontinu, le dispositif de vitesse (12) étant conçu de telle sorte que la vitesse est augmentée pendant le refroidissement du sable de moulage.
  14. Dispositif de refroidissement de sable de moulage selon l'une des revendications 11 à 13, caractérisé en ce qu'est prévu un dispositif de détection de la décharge de particules via la sortie d'air (5), la décharge de particules détectée étant fournie au dispositif de vitesse (12), le dispositif de vitesse (12) étant de préférence conçu de telle sorte que la vitesse peut être commandée ou régulée en fonction de la décharge de particules détectée.
  15. Dispositif de refroidissement de sable de moulage selon l'une des revendications 11 à 14, caractérisé en ce qu'est prévu un dispositif (29) destiné à alimenter en eau la chambre de sable (2), et en ce qu'il est de préférence prévu un dispositif de commande d'eau auquel est fournie la décharge de particules détectée et le cas échéant la vitesse du séparateur à air dynamique (10), et qui est conçu de telle sorte que la quantité d'eau amenée est fonction de la décharge de particules détectée et le cas échéant de la vitesse du séparateur à air dynamique (10).
  16. Dispositif de refroidissement de sable de moulage selon l'une des revendications 11 à 15, caractérisé en ce qu'est prévu un capteur d'humidité permettant de détecter l'humidité du sable dans la chambre de sable (2), le capteur d'humidité étant de préférence relié au dispositif de vitesse et ce dernier étant conçu de telle sorte que la vitesse peut être régulée ou commandée en fonction de l'humidité détectée.
EP16710969.3A 2015-03-23 2016-03-18 Dispositif de refroidissement de sable de moulage Active EP3274112B1 (fr)

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SI201630889T SI3274112T1 (sl) 2015-03-23 2016-03-18 Hladilnik formarskega peska
PL16710969T PL3274112T3 (pl) 2015-03-23 2016-03-18 Chłodnica piasku formierskiego
HRP20201389TT HRP20201389T1 (hr) 2015-03-23 2020-08-31 Uređaj za hlađenje kalupnog pijeska

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DE102015104340.8A DE102015104340A1 (de) 2015-03-23 2015-03-23 Formsandkühler
PCT/EP2016/055911 WO2016150835A1 (fr) 2015-03-23 2016-03-18 Dispositif de refroidissement de sable de moulage

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AR (1) AR104036A1 (fr)
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MX (1) MX2017011867A (fr)
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PT (1) PT3274112T (fr)
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SI (1) SI3274112T1 (fr)
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UA (1) UA119913C2 (fr)
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CN111822353B (zh) * 2019-05-16 2022-10-28 台州锐祥机械设备有限公司 五谷杂粮吹筛装置
CN114558983A (zh) * 2022-02-23 2022-05-31 福建新佳鑫实业有限公司 一种消失模铸造用具有冷却功能的砂库

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UA119913C2 (uk) 2019-08-27
TW201641183A (zh) 2016-12-01
EP3274112A1 (fr) 2018-01-31
PT3274112T (pt) 2020-08-25
AR104036A1 (es) 2017-06-21
CN205414308U (zh) 2016-08-03
WO2016150835A1 (fr) 2016-09-29
ES2809499T3 (es) 2021-03-04
BR112017018380A2 (pt) 2018-04-17
KR20170130507A (ko) 2017-11-28
RU2672125C1 (ru) 2018-11-12
JP6396606B2 (ja) 2018-09-26
DE102015104340A1 (de) 2016-09-29
US10124399B2 (en) 2018-11-13
CA2976720C (fr) 2018-04-17
BR112017018380B1 (pt) 2021-08-17
JP2018510781A (ja) 2018-04-19
KR101946425B1 (ko) 2019-05-31
CA2976720A1 (fr) 2016-09-29
TWI666076B (zh) 2019-07-21
HRP20201389T1 (hr) 2021-01-08
CN107405679B (zh) 2019-08-27
MX2017011867A (es) 2017-12-07
US20180029108A1 (en) 2018-02-01
ZA201706396B (en) 2019-01-30
SI3274112T1 (sl) 2020-09-30
CN107405679A (zh) 2017-11-28
PL3274112T3 (pl) 2020-11-16

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