EP3173529B1 - Snow stirring device - Google Patents

Snow stirring device Download PDF

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Publication number
EP3173529B1
EP3173529B1 EP16201506.9A EP16201506A EP3173529B1 EP 3173529 B1 EP3173529 B1 EP 3173529B1 EP 16201506 A EP16201506 A EP 16201506A EP 3173529 B1 EP3173529 B1 EP 3173529B1
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EP
European Patent Office
Prior art keywords
snow
hopper
conveyor belt
sonotrodes
crusher
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Application number
EP16201506.9A
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German (de)
French (fr)
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EP3173529A1 (en
Inventor
Jean VILLETON
Fabienne PASCAL-SUISSE
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Jean Villeton Ets
Original Assignee
Jean Villeton Ets
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/10—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat for melting snow or ice, whether cleared or not, combined or not with clearing or removing mud or water, e.g. burners for melting in situ, heated clearing instruments; Cleaning snow by blowing or suction only
    • E01H5/102—Self-contained devices for melting dislodged snow or ice, e.g. built-in melting chambers, movable melting tanks
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/12—Apparatus or implements specially adapted for breaking, disintegrating, or loosening layers of ice or hard snow with or without clearing or removing ; Roughening ice or hard snow by means of tools

Definitions

  • the present invention relates to a snow brewing device for reducing and melting a volume of snow.
  • This device comprises two tanks, namely a so-called fluidization tank and a storage tank.
  • the fluidizing tank is intended to fluidize the snow that is brought and paid by means of vehicles such as backhoe loaders and dump trucks.
  • the fluidizing tank comprises means for compacting the snow, mechanical kneading means arranged under the packing means, means for injecting water fed with water from the storage tank and placed in the above and below the mixing means, and ultrasonic generation means arranged under the mixing means and the water injection means.
  • the fluddy snow arriving at the bottom of the fluidization tank is then transferred to the storage tank, where the snow undergoes a natural melting.
  • the settlement made at the inlet of the tank by the settlement means has the disadvantage of forming compact blocks of snow. These compact blocks of snow are then difficult to break or reduce, despite the mixing means and the ultrasonic generation means. This can result in a saturation of the device.
  • the present invention aims to overcome this drawback by providing a snow brewing device for reducing and melting the snow with efficiency, reliability, that is to say without risk of saturation or overfeeding in hard snow, and with limited environmental impact.
  • the subject of the present invention is a snow-mixing device according to claim 1.
  • the snow brewing device provides a pre-mixing of the snow before introduction into the hopper. This makes it possible to work the snow upstream, that is to say crumble it before spilling into the hopper, to prevent compact blocks of hard snow being introduced into the hopper.
  • the conveyor belt spreads and destructures the snow because of its length and the vibrations it generates during operation, which limits any risk of saturation and then promotes the melting of snow in the hopper.
  • the conveyor belt is inclined towards the mill.
  • the conveyor belt is bordered by two movable lateral edges arranged on either side of it to prevent a spill of snow next to the conveyor belt, and configured drive means to move the two side edges relative to the conveyor belt.
  • the drive means can be configured to impart a reciprocating motion to the side edges.
  • the conveyor belt is arranged upstream of the mill.
  • the mill is arranged below the inlet opening and the feed assembly comprises means for conduction of snow from the mill to the inlet opening.
  • the device comprises flow control means configured to limit the flow of snow entering the hopper.
  • This feature prevents overfeeding of the hopper that can lead to saturation. This improves the reliability of the device.
  • the means for reducing the volume of snow comprise a plurality of sonotrodes for generating ultrasound inside the hopper, said sonotrodes being inclined.
  • This feature contributes to a better distribution of snow in the hopper, which improves the yield.
  • the hopper comprises an outlet opening arranged above the plurality of sonotrodes.
  • this arrangement has the advantage of allowing a certain height of water to remain at the bottom of the hopper. This stagnant water has more time to warm up than living water, so this stagnant, colder water improves the melting of the snow.
  • the sonotrodes have a proximal end attached to a side wall of the hopper and a free distal end.
  • the free end of the sonotrodes is located lower than their proximal end.
  • the sonotrodes are arranged in staggered rows.
  • the means for reducing the volume of snow comprise a device for injecting liquid water into the hopper.
  • the device comprises at least one magnet for retaining metal elements that may be present in the snow treated by the device.
  • This characteristic limits a risk of deterioration of the stirring means and, where appropriate, sonotrodes, as well as a risk of obstruction of an outlet opening of the hopper. This improves the reliability of the device.
  • the figure 1 shows a device 1 according to an embodiment of the invention for melting snow.
  • the device 1 comprises a hopper 100, means of fluidification and reduction of the volume of snow introduced into the hopper 100, which will be described in more detail below, and a unit or assembly 200 of feed configured to drive the snow from the outside of the hopper 100 to the inside thereof.
  • the hopper 100 includes an inlet opening 102 for receiving snow to melt and at least one main outlet opening 104 for discharging the treated snow into the hopper 100.
  • the hopper 100 may include a grid 108 across the hopper 100. main outlet opening 104 to prevent the rejection of solid elements from the hopper 100.
  • the hopper 100 here comprises four side walls 110, including two longitudinal side walls 110a and two side walls 110b transverse.
  • the hopper 100 is open at the top through the inlet opening 102, here delimited by an upper edge of the side walls 110, and closed at the bottom by a bottom wall 112 connecting a lower edge of the side walls 112.
  • the inlet opening 102 may be rectangular in shape.
  • the inlet opening 102 preferably delimits a substantially vertical normal inlet surface.
  • the hopper 100 may advantageously have a funnel shape, that is to say with a decreasing horizontal section progressing from top to bottom. So, as visible for example on the figure 12 , the hopper 100 may have an upper portion 100a of greater width, where the longitudinal side walls 110a are parallel, an intermediate portion 100b decreasing width, where the longitudinal side walls 110a are inclined and converging, and a lower part 100c can be of substantially parabolic shape, formed essentially by the bottom wall 112.
  • the hopper 100 may comprise one or more maintenance hatches 114, making it possible to release access through one of the side walls 110 for maintenance operations, or to seal this access in the event of operation of the hopper 100.
  • the trap or hatches 114 may be arranged at the intermediate portion 100b.
  • the hopper 100 may advantageously have a secondary outlet opening 106, arranged at the bottom wall 112, at the lowest position thereof if the bottom wall 112 is inclined.
  • the secondary outlet opening 106 is intended for a total evacuation of the water present in the hopper 100, during a total shutdown of the device 1, for example for a maintenance operation.
  • bottom wall 112 is advantageously inclined in a longitudinal direction of the hopper 100, as illustrated in FIG. figure 11 , especially in the direction of the secondary outlet opening 106.
  • the hopper 100 may advantageously comprise a cover 116 intended to close at least part of the inlet opening 102. This makes it possible to avoid spray splashing of the treated snow into the hopper 100. Also, the pieces of snow projected against the cover 116 break up, which improves the efficiency of the treatment of the snow in the hopper 100.
  • the cover 116 is for example mounted movably, in particular in rotation around an axis, preferably longitudinal, with respect to the hopper 100, between a shutter position, visible on the figure 3 , in which the cover 116 completely closes the inlet opening 102, and an open position, visible on the figure 1 , in which the cover 116 clears a passage through the inlet opening 102, thus allowing the snow pre-brewed by the feed assembly 200 to be discharged into the hopper 100.
  • the means of fluidification and reduction of the volume of snow introduced into the hopper 100 may comprise one or more kneading or hedgehog units 118, configured to stir the snow introduced into the hopper 100 via the inlet opening 102.
  • kneading members 118 are arranged inside the hopper 100, for example at the top 100a.
  • the stirring members 118 are of the mechanical type, and may each comprise a support rod 120 extending from one side to the other of the hopper 100, and more precisely in a substantially longitudinal direction thereof, and several kneading tools 122 (discs, fingers, pins, blades, etc.) intended to reduce and destructure the snow, these kneading tools 122 being supported by the support rod 120 and extending substantially radially from it; this.
  • the means of fluidification and reduction of the volume of snow preferably comprise several kneading units 118, for example parallel to one another, and the kneading members 118 are preferably arranged at different heights inside the hopper 100, as visible on the figure 12 where two kneading members 118 are arranged at a first height, and a third kneading member 118 is arranged at a height less than that of the two aforementioned kneading members 118, and more precisely under a free space separating these two kneading members 118 .
  • the kneading members 118 are mounted rotatably with respect to the hopper 100.
  • the device 1 may comprise drive means, such as motors 124, for pivoting the rods 120 on themselves and thus actuating the members 118 of the machine. mixing.
  • the means of fluidification and reduction of the volume of snow may furthermore comprise a device for injecting liquid water into the hopper 100, this liquid water injection device comprising, for example, nozzles 126 of water. injection.
  • the nozzles 126 advantageously open above the kneading members 118.
  • the nozzles 126 may be aligned along an upper edge of two side walls 110, including the longitudinal side walls 110a. Preferably, all the injection nozzles 126 open above the organs 118. mixing. In other words, there are no injection nozzles 126 opening under the kneading members 118.
  • the means of fluidification and reduction of snow volume may advantageously comprise ultrasonic generators, for example as those described in the patent document. WO2015007991 .
  • the means of fluidification and reduction of snow volume comprise a plurality of sonotrodes 128 which are inclined relative to the horizontal and the vertical, for example at an angle of the order of 45 °.
  • the sonotrodes 128 advantageously extend to a height less than that of the kneading members 118, for example at the intermediate portion 100b.
  • the sonotrodes 128 extend from two opposite sides of the hopper 100, more precisely from the longitudinal side walls 110a, where appropriate substantially symmetrically with respect to a longitudinal median plane of the hopper 100. At each side of the hopper 100 the sonotrodes 128 may be substantially parallel to each other.
  • the sonotrodes 128 have a proximal end 130 attached to a longitudinal side wall 110a and a distal end 132 free.
  • the free distal end 132 is located lower than the proximal end 130, and points for example toward the bottom of the hopper 100.
  • sonotrodes 128 are advantageously arranged in staggered rows, in particular in two rows at each side of the hopper 100.
  • the sonotrodes 128 extend substantially parallel to the portion of the longitudinal side wall 110a of the intermediate portion 100b to which these sonotrodes 128 are attached.
  • the bottom of the hopper 100 can be filled with water until all or part of the sonotrodes 128 are immersed.
  • the main outlet opening 104 for evacuating the snow can be arranged to open at a height greater than that where the sonotrodes 128 are arranged, such as above the free distal end 132, and preferably at or above the proximal end 130, as visible on the figure 13 .
  • the hopper 100 is devoid of means for compacting the snow which is introduced at the entrance, which avoids forming compact blocks of snow in the hopper 100.
  • the feed assembly 200 comprises an endless conveyor conveyor belt 202 and a crusher 204, arranged outside the hopper 10, and which are configured to crumble the snow upstream of the treatment inside the hopper 10. the hopper 100, that is to say before introduction of this snow into the hopper 100.
  • the conveyor belt 202 may advantageously be inclined, preferably towards the mill 204.
  • the conveyor belt 202 is supported by a carrier frame or structure 206, which may also be configured to support the mill 2.
  • the carrier structure 206 is provided with flanks, angles or lateral anti-spill edges 208 which extend on two opposite longitudinal sides of the conveyor belt 202 to prevent a pre-brewed snow spill on either side of the carpet 202 of conveying.
  • the lateral edges 208 are advantageously movable with respect to the conveyor belt 202 and to the carrier structure 206, for example in rotation or translation along an axis substantially parallel to the direction in which the conveyor belt 202 extends.
  • the feed assembly 200 comprises driving means, such as a hydraulic motor (not shown), intended to move the lateral anti-spill edges 208 with respect to the conveyor belt 202 and the carrier structure 206, preferably in a back-and-forth motion. This makes it possible, particularly in very cold weather, to prevent the snow from sticking to the edges 208 of the conveyor belt 202.
  • the side edges 208 are for example formed by endless belts.
  • the conveyor belt 202 is for example driven by a motor shaft 210, rotatably mounted relative to the carrier structure 206, at one end of the conveyor belt 202.
  • the carrier structure 206 may also include a receiver shaft 214, rotatably mounted thereon, and arranged at another end of the conveyor belt 202.
  • the driving shaft 210 and, if appropriate, the receiving shaft 212 may comprise sprockets intended to mesh with the conveyor belt 202.
  • the carrier structure 206 may further comprise sliding strips 214 for supporting the conveyor belt 202 between the motor shaft 210 and the receiver shaft 212.
  • the sliding strips 214 are substantially orthogonal to the motor shaft 210, motor 212 and receiver.
  • a guide roller 216 may also be provided to tension the conveyor belt 202.
  • the conveyor belt 202 has a length of the order of three to five meters, which makes it possible to receive, if necessary, the volume of snow discharged by a machine 300 and allows sufficient destructuring of the snow in upstream of the hopper, while providing a limited footprint facilitating transport and the device device in situ.
  • the conveyor belt 202 is placed upstream of the mill 204. Amont and downstream agree with respect to the direction of flow of the snow towards the hopper 100.
  • the conveyor belt 202 receives the snow spilled by a type of machine dump truck or backhoe loader and drives the snow to the mill 204, pre-mixing it.
  • the conveyor belt 202 is placed downstream of the crusher 204.
  • the crusher 204 receives the snow discharged by a dump truck or backhoe loader and the snow crumbled by the crusher 204 is then conducted and pre-brewed by the conveyor belt 202 to the hopper 100.
  • the hopper 100 and the carrier structure 206 may here comprise support and receiving means, such as hooks 134, here attached to the hopper 100, and one or more support axes 218, here attached to the carrier structure 206, to allow the carrier structure 206 to rest on the hopper 100.
  • the feed assembly 200 may comprise conduction means or feed means configured to drive the pre-brewed snow from the mill 204 to the hopper 100.
  • the mill 204 is located below the hopper 100, a height less than this, so that the conduction means advantageously extend upwardly from a proximal end arranged at the mill 204 to a distal end arranged at the inlet opening 102 .
  • the distal end is preferably located vertically above the inlet opening 102 so that the pre-milled snow fed by the conveyor belt 202 drops and breaks in the hopper 100.
  • the conduction means may comprise a guide duct 220 intended to guide the projected snow at the outlet of the mill 204 to the hopper 100.
  • the assembly of the guide duct 220 and the mill 204 may for example be formed by a turbofan to snow.
  • the guide duct 220 advantageously has a closed contour.
  • the conduction means could comprise a conveyor belt similar to that illustrated in FIGS. Figures 6 to 13 .
  • the distal end of the guide duct 220 advantageously has a deflecting wall 222 for folding the flow of snow towards the inlet opening 102.
  • the deflecting wall 222 is arranged on the trajectory of the projected snow flow, although that the snow breaks against the deflecting wall 222, which thus contributes to disintegrate the snow before introduction into the hopper 100.
  • the distal end of the guide duct 220 is here of flared shape for a better distribution of the snow entering the hopper 100.
  • the conduction means can be orientable, that is to say mobile with respect to the hopper 100, in order to direct the flow of snow if necessary towards unencumbered areas of the hopper 100.
  • the 200 together power supply may comprise drive means, such as for example a motor or hydraulic actuator that allows the conduction means to move in a back and forth motion, for example in rotation about the axis the along which they extend.
  • the mill 204 may comprise one or more pre-mixing members 224 that can be rotated about the axis along which they extend.
  • This or these pre-brewing members 224 may be of the strawberry type, as illustrated in FIGS. Figures 1 to 5 , or endless helical screw or hedgehog, as illustrated on the Figures 6 to 13 .
  • the pre-mixing organs 224 may be substantially parallel to each other.
  • the mill 204 may comprise a pre-mixing tank 226 adapted to receive the snow and inside which are advantageously arranged the pre-mixing element or bodies 224.
  • the pre-mixing tank 226 may comprise two lateral flanges 228, here substantially parallel, between which the pre-mixing members 224 extend and, if necessary, a limiter 230 of height.
  • the pre-mixing organs 224 and the height limiter 230 extend here from one flange 228 to the other.
  • the pre-mixing tank 226 may also comprise a wall 232 movable relative to the flanges 228, between an open position ( Figures 6 and 7 ) where this movable wall 232 releases a passage between the flanges 228, and a closed position (not shown) in which the movable wall 232 closes this passage.
  • This movable wall 232 acts as a valve to close the inlet of the mill 204 when the unloading machine is no longer unloading phase.
  • the movable wall 232 is advantageously rotatably mounted relative to the flanges 228.
  • the flanges 228 define an opening allowing the pre-ground snow to be carried by the conveyor belt 202 towards the hopper 100.
  • the upper edges 236 of the flanges 228 may delimit between them an upper opening located vertically above the pre-mixing members 224.
  • the pre-mixing tank 226 may comprise one or more stiffening bars 238 spaced apart from one another and extending from one flange 202 laterally to the other, above the pre-mixing members 224. These bars 238 make it possible to stiffen the pre-mixing tray 226 and may be magnetized to retain any metallic elements present in the spilled snow. These bars 228 also contribute to the disintegration of snow blocks during the spill.
  • the bars 238 are advantageously parallel to each other, rectilinear, and delimit between them free spaces 240.
  • the feed assembly 200 preferably comprises flow control means configured to limit the flow of snow entering the hopper 100.
  • These flow control means may comprise a limiter 230 of snow height, for example at the outlet of the grinder 204 or at conveyor belt 202.
  • This limiter 230 of height may be a blade, a worm, or a hedgehog, for example mobile in rotation about the axis along which it extends.
  • the flow control means may comprise a regulator of the speed of advancement of conveyor belt 202 to limit the flow of snow discharged into hopper 100.
  • the device 1 may comprise at least one magnet 136 intended to retain metal elements that may be present in the treated snow.
  • the device 1 may comprise a magnet 136a arranged at one of the side walls 110, in particular one of the transverse side walls 110b, as visible on FIG. figure 12 , preferably in the upper part 100a, at the height of the kneading members 122 or, where appropriate, between the two levels at which the kneading members 122 are arranged.
  • the device 1 may comprise a magnet 136b arranged along the bottom wall 112, and / or a magnet arranged through or next to the main outlet opening 104. More precisely, the filtering grid 108 can be magnetized.
  • the device 1 may also comprise a magnet at the grinder 204 or conveyor belt 202, such as for example the magnetic bars 238 described above.
  • the device 1 may furthermore comprise a storage tank (not shown), a first transfer circuit adapted to transfer the treated snow, from the outlet opening 104 to the storage tank, for example by means of a pump, and advantageously a second transfer circuit adapted to transfer liquid water from the storage tank to the storage device. injection of liquid water, for example also via a pump.
  • the storage tank is fixed, while the rest of the device, in particular the hopper 100 and the feed assembly 200, are likely to be moved for example by truck for installation within a site to to clear snow, that is to say closer to the snow to melt.
  • the water stored in the storage tank is thus reused for melting snow. Outside the operating period of the device 1, the water present in the storage tank can of course be used for other purposes, depending on the site where the device 1 is installed.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Accessories For Mixers (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)

Description

La présente invention concerne un dispositif de brassage de neige, destiné à réduire et faire fondre un volume de neige.The present invention relates to a snow brewing device for reducing and melting a volume of snow.

A la suite d'intempéries, l'activité de certaines installations ou infrastructures, notamment industrielles ou aéroportuaires, peut être sensiblement perturbée du fait de la neige accumulée et des congères formées.As a result of bad weather, the activity of certain facilities or infrastructures, particularly industrial or airport, can be significantly disturbed due to accumulated snow and snowdrifts formed.

Pour limiter la gêne et le danger résultant de cette accumulation de neige et de la formation de congères, il est nécessaire de déneiger le site concerné, idéalement le plus rapidement possible pour limiter l'impact économique, et de la manière la plus écologique possible pour limiter l'impact environnemental.To limit the inconvenience and the danger resulting from this snow accumulation and the formation of snowdrifts, it is necessary to clear the site concerned, ideally as quickly as possible to limit the economic impact, and in the most ecological way possible to limit the environmental impact.

A cette fin, il est connu du document de brevet WO2015007991 un dispositif de réduction du volume et fluidification de neige pour l'évacuation de neige accumulée sur des chaussées dans les lieux publics ou sites industriels et aéroportuaires.For this purpose, it is known from the patent document WO2015007991 a device for reducing the volume and fluidification of snow for the evacuation of snow accumulated on roadways in public places or industrial and airport sites.

Ce dispositif comprend deux réservoirs, à savoir un réservoir dit de fluidification et un réservoir de stockage. Le réservoir de fluidification est destiné à fluidifier la neige qui y est amenée et versée au moyen de véhicules de type tractopelles et camions benne. Le réservoir de fluidification comprend à cet effet des moyens de tassement de la neige, des moyens mécaniques de malaxage disposés sous les moyens de tassement, des moyens d'injection d'eau alimentés par de l'eau provenant du réservoir de stockage et placés au-dessus et en-dessous des moyens de malaxage, et des moyens de génération d'ultrasons disposés sous les moyens de malaxage et les moyens d'injection d'eau. La neige fludifiée arrivant au fond du réservoir de fluidification est ensuite transférée au réservoir de stockage, où cette neige subit une fonte naturelle.This device comprises two tanks, namely a so-called fluidization tank and a storage tank. The fluidizing tank is intended to fluidize the snow that is brought and paid by means of vehicles such as backhoe loaders and dump trucks. For this purpose, the fluidizing tank comprises means for compacting the snow, mechanical kneading means arranged under the packing means, means for injecting water fed with water from the storage tank and placed in the above and below the mixing means, and ultrasonic generation means arranged under the mixing means and the water injection means. The fluddy snow arriving at the bottom of the fluidization tank is then transferred to the storage tank, where the snow undergoes a natural melting.

Cependant, le tassement réalisé en entrée du réservoir par les moyens de tassement a l'inconvénient de former des blocs compacts de neige. Ces blocs compacts de neige sont ensuite difficiles à briser ou réduire, malgré les moyens de malaxage et les moyens de génération d'ultrasons. Il peut en résulter une saturation du dispositif.However, the settlement made at the inlet of the tank by the settlement means has the disadvantage of forming compact blocks of snow. These compact blocks of snow are then difficult to break or reduce, despite the mixing means and the ultrasonic generation means. This can result in a saturation of the device.

Aussi, la présente invention vise à pallier cet inconvénient en proposant un dispositif de brassage de neige permettant de réduire et faire fondre la neige avec efficacité, fiabilité, c'est-à-dire sans risque de saturation ni suralimentation en neige dure, et avec un impact environnemental limité.Also, the present invention aims to overcome this drawback by providing a snow brewing device for reducing and melting the snow with efficiency, reliability, that is to say without risk of saturation or overfeeding in hard snow, and with limited environmental impact.

A cet effet, la présente invention a pour objet un dispositif de brassage de neige conforme à la revendication 1.To this end, the subject of the present invention is a snow-mixing device according to claim 1.

Ainsi, le dispositif de brassage de neige selon l'invention offre un pré-brassage de la neige avant introduction dans la trémie. Cela permet de travailler la neige en amont, c'est-à-dire l'émietter avant déversement dans la trémie, pour éviter que des blocs compacts de neige dure soient introduits dans la trémie. Le tapis de convoyage permet d'étaler et déstructurer la neige du fait de sa longueur et des vibrations qu'il engendre en fonctionnement, ce qui limite tout risque de saturation et favorise ensuite la fonte de la neige dans la trémie.Thus, the snow brewing device according to the invention provides a pre-mixing of the snow before introduction into the hopper. This makes it possible to work the snow upstream, that is to say crumble it before spilling into the hopper, to prevent compact blocks of hard snow being introduced into the hopper. The conveyor belt spreads and destructures the snow because of its length and the vibrations it generates during operation, which limits any risk of saturation and then promotes the melting of snow in the hopper.

Selon un mode de réalisation préféré, le tapis de convoyage est incliné en direction du broyeur.According to a preferred embodiment, the conveyor belt is inclined towards the mill.

Cela permet sous l'effet de la gravité de précipiter les blocs de neige compacts contre le broyeur afin de favoriser leur désagrégation.This allows under the effect of the gravity to precipitate compact blocks of snow against the mill to promote their disintegration.

Selon un mode de réalisation préféré, le tapis de convoyage est bordé par deux bords latéraux mobiles agencés de part et d'autre de celui-ci pour empêcher un déversement de la neige à côté du tapis de convoyage, et des moyens d'entraînement configurés pour déplacer les deux bords latéraux par rapport au tapis de convoyage.According to a preferred embodiment, the conveyor belt is bordered by two movable lateral edges arranged on either side of it to prevent a spill of snow next to the conveyor belt, and configured drive means to move the two side edges relative to the conveyor belt.

Cette caractéristique permet d'empêcher un agglutinement de la neige contre les bords latéraux. En particulier, les moyens d'entraînement peuvent être configurés pour impartir un mouvement de va-et-vient aux bords latéraux.This feature prevents snow from clinging to the side edges. In particular, the drive means can be configured to impart a reciprocating motion to the side edges.

Selon l'invention, le tapis de convoyage est agencé à l'amont du broyeur.According to the invention, the conveyor belt is arranged upstream of the mill.

Cela améliore l'efficacité du pré-brassage.This improves the efficiency of pre-brewing.

Selon un mode de réalisation préféré, le broyeur est agencé en contrebas de l'ouverture d'entrée et l'ensemble d'alimentation comprend des moyens de conduction de la neige depuis le broyeur jusqu'à l'ouverture d'entrée.According to a preferred embodiment, the mill is arranged below the inlet opening and the feed assembly comprises means for conduction of snow from the mill to the inlet opening.

Ainsi, par gravité, les plus gros blocs compacts résiduels de neige en sortie du broyeur retombent par gravité en direction du broyeur au lieu d'être introduits dans la trémie.Thus, by gravity, the largest residual compact blocks of snow at the outlet of the mill fall by gravity towards the mill instead of being introduced into the hopper.

Selon un mode de réalisation préféré, le dispositif comprend des moyens de régulation de débit configurés pour limiter le débit de neige entrant dans la trémie.According to a preferred embodiment, the device comprises flow control means configured to limit the flow of snow entering the hopper.

Cette caractéristique permet de prévenir une suralimentation de la trémie susceptible d'entraîner une saturation. Cela améliore donc la fiabilité du dispositif.This feature prevents overfeeding of the hopper that can lead to saturation. This improves the reliability of the device.

Selon un mode de réalisation préféré, les moyens de réduction de volume de neige comprennent une pluralité de sonotrodes destinées à générer des ultrasons à l'intérieur de la trémie, lesdites sonotrodes étant inclinées.According to a preferred embodiment, the means for reducing the volume of snow comprise a plurality of sonotrodes for generating ultrasound inside the hopper, said sonotrodes being inclined.

Cette caractéristique contribue à une meilleure répartition de la neige dans la trémie, ce qui améliore le rendement.This feature contributes to a better distribution of snow in the hopper, which improves the yield.

Selon un mode de réalisation préféré, la trémie comprend une ouverture de sortie agencée au-dessus de la pluralité de sonotrodes.According to a preferred embodiment, the hopper comprises an outlet opening arranged above the plurality of sonotrodes.

Par rapport à une ouverture de sortie située sous les sonotrodes, cette disposition a l'avantage de laisser stagner une certaine hauteur d'eau au fond de la trémie. Cette eau stagnante a davantage le temps de se réchauffer qu'une eau vive, si bien que cette eau stagnante, moins froide, améliore la fonte de la neige.With respect to an outlet opening located below the sonotrodes, this arrangement has the advantage of allowing a certain height of water to remain at the bottom of the hopper. This stagnant water has more time to warm up than living water, so this stagnant, colder water improves the melting of the snow.

Avantageusement, les sonotrodes ont une extrémité proximale fixée à une paroi latérale de la trémie et une extrémité distale libre. Selon une forme d'exécution avantageuse, l'extrémité libre des sonotrodes est située plus bas que leur extrémité proximale.Advantageously, the sonotrodes have a proximal end attached to a side wall of the hopper and a free distal end. According to an advantageous embodiment, the free end of the sonotrodes is located lower than their proximal end.

De préférence, les sonotrodes sont agencées en quinconce.Preferably, the sonotrodes are arranged in staggered rows.

Selon un mode de réalisation préféré, les moyens de réduction du volume de neige comprennent un dispositif d'injection d'eau liquide à l'intérieur de la trémie.According to a preferred embodiment, the means for reducing the volume of snow comprise a device for injecting liquid water into the hopper.

Cela permet d'améliorer la rapidité et l'efficacité de la fonte de la neige dans la trémie.This improves the speed and efficiency of melting snow in the hopper.

Selon un mode de réalisation préféré, le dispositif comprend au moins un aimant destiné à retenir des éléments métalliques pouvant être présents dans la neige traitée par le dispositif.According to a preferred embodiment, the device comprises at least one magnet for retaining metal elements that may be present in the snow treated by the device.

Cette caractéristique limite un risque de détérioration des moyens de brassage et le cas échéant des sonotrodes, ainsi qu'un risque d'obstruction d'une ouverture de sortie de la trémie. Cela améliore donc la fiabilité du dispositif.This characteristic limits a risk of deterioration of the stirring means and, where appropriate, sonotrodes, as well as a risk of obstruction of an outlet opening of the hopper. This improves the reliability of the device.

D'autres caractéristiques et avantages de la présente invention ressortiront clairement de la description détaillée ci-après d'un mode de réalisation, donné à titre d'exemple non limitatif, en référence aux dessins annexés dans lesquels :

  • La figure 1 est vue en perspective d'un dispositif de brassage de neige selon un mode de réalisation de l'invention,
  • La figure 2 est une vue de côté d'un dispositif de brassage de neige selon un mode de réalisation de l'invention,
  • La figure 3 est une vue en perspective d'un dispositif de brassage de neige selon un mode de réalisation de l'invention,
  • La figure 4 est une vue en perspective d'une partie d'un dispositif de brassage de neige selon un mode de réalisation de l'invention,
  • La figure 5 est une vue de côté d'une partie d'un dispositif de brassage de neige selon un mode de réalisation de l'invention
  • La figure 6 est une vue en perspective d'un dispositif de brassage de neige,
  • La figure 7 est une vue de côté d'un dispositif de brassage de neige,
  • La figure 8 est une vue de dessus d'un dispositif de brassage de neige,
  • La figure 9 est une vue en perspective et par transparence d'un dispositif de brassage de neige,
  • La figure 10 est un détail de la figure 9,
  • La figure 11 est une vue de côté et par transparence d'un dispositif de brassage de neige,
  • La figure 12 est une vue en coupe selon la ligne I-I de la figure 11,
  • La figure 13 est une vue de côté et par transparence d'un dispositif de brassage de neige.
Other features and advantages of the present invention will emerge clearly from the following detailed description of an embodiment, given by way of non-limiting example, with reference to the appended drawings in which:
  • The figure 1 is a perspective view of a snow mixing device according to one embodiment of the invention,
  • The figure 2 is a side view of a snow-blowing device according to one embodiment of the invention,
  • The figure 3 is a perspective view of a snow mixing device according to one embodiment of the invention,
  • The figure 4 is a perspective view of a portion of a snowmaking device according to one embodiment of the invention,
  • The figure 5 is a side view of a portion of a snowmaking device according to one embodiment of the invention
  • The figure 6 is a perspective view of a snow brewing device,
  • The figure 7 is a side view of a snowmaking device,
  • The figure 8 is a top view of a snowmaking device,
  • The figure 9 is a perspective and transparency view of a snow brewing device,
  • The figure 10 is a detail of the figure 9 ,
  • The figure 11 is a side view and by transparency of a device of mixing of snow,
  • The figure 12 is a sectional view along line II of the figure 11 ,
  • The figure 13 is a side and transparency view of a snow brewing device.

La figure 1 montre un dispositif 1 selon un mode de réalisation de l'invention, destiné à faire fondre de la neige.The figure 1 shows a device 1 according to an embodiment of the invention for melting snow.

Le dispositif 1 comprend une trémie 100, des moyens de fluidification et de réduction du volume de neige introduite dans la trémie 100, qui seront décrits plus en détails ci-après, et une unité ou ensemble 200 d'alimentation configuré pour conduire la neige depuis l'extérieur de la trémie 100 jusqu'à l'intérieur de celle-ci.The device 1 comprises a hopper 100, means of fluidification and reduction of the volume of snow introduced into the hopper 100, which will be described in more detail below, and a unit or assembly 200 of feed configured to drive the snow from the outside of the hopper 100 to the inside thereof.

La trémie 100 comprend une ouverture d'entrée 102 pour recevoir de la neige à faire fondre et au moins une ouverture 104 de sortie principale pour évacuer la neige traitée dans la trémie 100. la trémie 100 peut comprendre une grille 108 en travers de l'ouverture 104 de sortie principale pour éviter le rejet d'éléments solides hors de la trémie 100.The hopper 100 includes an inlet opening 102 for receiving snow to melt and at least one main outlet opening 104 for discharging the treated snow into the hopper 100. The hopper 100 may include a grid 108 across the hopper 100. main outlet opening 104 to prevent the rejection of solid elements from the hopper 100.

La trémie 100 comprend ici quatre parois latérales 110, dont deux parois latérales 110a longitudinales et deux parois latérales 110b transversales.The hopper 100 here comprises four side walls 110, including two longitudinal side walls 110a and two side walls 110b transverse.

La trémie 100 est ouverte en haut par l'ouverture d'entrée 102, ici délimitée par un bord supérieur des parois latérales 110, et fermée en bas par une paroi 112 de fond reliant un bord inférieur des parois latérales 112.The hopper 100 is open at the top through the inlet opening 102, here delimited by an upper edge of the side walls 110, and closed at the bottom by a bottom wall 112 connecting a lower edge of the side walls 112.

L'ouverture d'entrée 102 peut être de forme rectangulaire. L'ouverture d'entrée 102 délimite de préférence une surface d'entrée de normale sensiblement verticale.The inlet opening 102 may be rectangular in shape. The inlet opening 102 preferably delimits a substantially vertical normal inlet surface.

La trémie 100 peut avantageusement présenter une forme en entonnoir, c'est-à-dire avec une section horizontale décroissante en progressant de haut en bas. Ainsi, comme visible par exemple sur la figure 12, la trémie 100 peut présenter une partie haute 100a de plus grande largeur, où les parois latérales 110a longitudinales sont parallèles, une partie intermédiaire 100b à largeur décroissante, où les parois latérales 110a longitudinales sont inclinées et convergentes, et une partie basse 100c pouvant être de forme sensiblement parabolique, formée essentiellement par la paroi 112 de fond.The hopper 100 may advantageously have a funnel shape, that is to say with a decreasing horizontal section progressing from top to bottom. So, as visible for example on the figure 12 , the hopper 100 may have an upper portion 100a of greater width, where the longitudinal side walls 110a are parallel, an intermediate portion 100b decreasing width, where the longitudinal side walls 110a are inclined and converging, and a lower part 100c can be of substantially parabolic shape, formed essentially by the bottom wall 112.

La trémie 100 peut comporter une ou plusieurs trappes 114 de maintenance, permettant de libérer un accès à travers une des parois latérales 110 pour des opérations de maintenance, ou de fermer de manière étanche cet accès en cas de fonctionnement de la trémie 100. Comme visible sur la figure 11, la ou les trappes 114 peuvent être agencées au niveau de la partie intermédiaire 100b.The hopper 100 may comprise one or more maintenance hatches 114, making it possible to release access through one of the side walls 110 for maintenance operations, or to seal this access in the event of operation of the hopper 100. As visible on the figure 11 , the trap or hatches 114 may be arranged at the intermediate portion 100b.

La trémie 100 peut avantageusement comporter une ouverture de sortie 106 secondaire, agencée au niveau de la paroi de fond 112, à l'emplacement le plus bas de celle-ci si la paroi de fond 112 est inclinée. L'ouverture de sortie 106 secondaire est destinée à une évacuation totale de l'eau présente dans la trémie 100, lors d'un arrêt total du dispositif 1, par exemple pour une opération de maintenance.The hopper 100 may advantageously have a secondary outlet opening 106, arranged at the bottom wall 112, at the lowest position thereof if the bottom wall 112 is inclined. The secondary outlet opening 106 is intended for a total evacuation of the water present in the hopper 100, during a total shutdown of the device 1, for example for a maintenance operation.

On notera que la paroi 112 de fond est avantageusement inclinée dans une direction longitudinale de la trémie 100, comme illustré sur la figure 11, notamment en direction de l'ouverture de sortie 106 secondaire.It will be noted that the bottom wall 112 is advantageously inclined in a longitudinal direction of the hopper 100, as illustrated in FIG. figure 11 , especially in the direction of the secondary outlet opening 106.

La trémie 100 peut avantageusement comprendre un couvercle 116 destiné à obturer au moins en partie l'ouverture 102 d'entrée. Cela permet d'éviter des éclaboussures par projection de la neige traitée dans la trémie 100. Aussi, les morceaux de neige projetés contre le couvercle 116 se désagrègent, ce qui améliore l'efficacité du traitement de la neige dans la trémie 100.The hopper 100 may advantageously comprise a cover 116 intended to close at least part of the inlet opening 102. This makes it possible to avoid spray splashing of the treated snow into the hopper 100. Also, the pieces of snow projected against the cover 116 break up, which improves the efficiency of the treatment of the snow in the hopper 100.

Le couvercle 116 est par exemple monté mobile, notamment en rotation autour d'un axe de préférence longitudinal, par rapport à la trémie 100, entre une position d'obturation, visible sur la figure 3, dans laquelle le couvercle 116 obture complètement l'ouverture d'entrée 102, et une position d'ouverture, visible sur la figure 1, dans laquelle le couvercle 116 dégage un passage à travers l'ouverture d'entrée 102, permettant ainsi de déverser dans la trémie 100 la neige pré-brassée par l'ensemble 200 d'alimentation.The cover 116 is for example mounted movably, in particular in rotation around an axis, preferably longitudinal, with respect to the hopper 100, between a shutter position, visible on the figure 3 , in which the cover 116 completely closes the inlet opening 102, and an open position, visible on the figure 1 , in which the cover 116 clears a passage through the inlet opening 102, thus allowing the snow pre-brewed by the feed assembly 200 to be discharged into the hopper 100.

Les moyens de fluidification et de réduction du volume de neige introduite dans la trémie 100 peuvent comprendre un ou des organes 118 de malaxage ou hérissons, configurés pour brasser la neige introduite dans la trémie 100 via l'ouverture d'entrée 102. Le ou les organes 118 de malaxage sont agencés à l'intérieur de la trémie 100, par exemple au niveau de la partie haute 100a.The means of fluidification and reduction of the volume of snow introduced into the hopper 100 may comprise one or more kneading or hedgehog units 118, configured to stir the snow introduced into the hopper 100 via the inlet opening 102. kneading members 118 are arranged inside the hopper 100, for example at the top 100a.

Les organes 118 de malaxage sont de type mécanique, et peuvent chacun comprendre une tige 120 de support, s'étendant d'un côté à l'autre de la trémie 100, et plus précisément selon une direction sensiblement longitudinale de celle-ci, et plusieurs outils 122 de malaxage (disques, doigts, ergots, lames, etc.), destinés à réduire et déstructurer la neige, ces outils 122 de malaxage étant supportés par la tige 120 de support et s'étendant sensiblement radialement à partir de celle-ci.The stirring members 118 are of the mechanical type, and may each comprise a support rod 120 extending from one side to the other of the hopper 100, and more precisely in a substantially longitudinal direction thereof, and several kneading tools 122 (discs, fingers, pins, blades, etc.) intended to reduce and destructure the snow, these kneading tools 122 being supported by the support rod 120 and extending substantially radially from it; this.

Les moyens de fluidification et de réduction du volume de neige comprennent de préférence plusieurs organes 118 de malaxage, par exemple parallèles entre eux, et les organes 118 de malaxage sont de préférence disposés à des hauteurs distinctes à l'intérieur de la trémie 100, comme visible sur la figure 12 où deux organes 118 de malaxage sont agencés à une première hauteur, et un troisième organe 118 de malaxage est agencé à une hauteur inférieure à celle des deux organes 118 de malaxage précités, et plus précisément sous un espace libre séparant ces deux organes 118 de malaxage.The means of fluidification and reduction of the volume of snow preferably comprise several kneading units 118, for example parallel to one another, and the kneading members 118 are preferably arranged at different heights inside the hopper 100, as visible on the figure 12 where two kneading members 118 are arranged at a first height, and a third kneading member 118 is arranged at a height less than that of the two aforementioned kneading members 118, and more precisely under a free space separating these two kneading members 118 .

Les organes 118 de malaxage sont montés mobiles en rotation par rapport à la trémie 100. Le dispositif 1 peut comprendre des moyens d'entraînement, comme des moteurs 124, pour faire pivoter les tiges 120 sur elles-mêmes et actionner ainsi les organes 118 de malaxage.The kneading members 118 are mounted rotatably with respect to the hopper 100. The device 1 may comprise drive means, such as motors 124, for pivoting the rods 120 on themselves and thus actuating the members 118 of the machine. mixing.

Les moyens de fluidification et de réduction du volume de neige peuvent par ailleurs comprendre un dispositif d'injection d'eau liquide à l'intérieur de la trémie 100, ce dispositif d'injection d'eau liquide comprenant par exemple des buses 126 d'injection. Les buses 126 débouchent avantageusement au-dessus des organes 118 de malaxage. Les buses 126 peuvent être alignées le long d'un bord supérieur de deux parois latérales 110, notamment les parois latérales 110a longitudinales. De préférence, toutes les buses 126 d'injection débouchent au-dessus des organes 118 de malaxage. Autrement dit, il n'y a pas de buses 126 d'injection débouchant sous les organes 118 de malaxage.The means of fluidification and reduction of the volume of snow may furthermore comprise a device for injecting liquid water into the hopper 100, this liquid water injection device comprising, for example, nozzles 126 of water. injection. The nozzles 126 advantageously open above the kneading members 118. The nozzles 126 may be aligned along an upper edge of two side walls 110, including the longitudinal side walls 110a. Preferably, all the injection nozzles 126 open above the organs 118. mixing. In other words, there are no injection nozzles 126 opening under the kneading members 118.

Les moyens de fluidification et de réduction de volume de neige peuvent avantageusement comprendre des générateurs d'ultrasons, par exemple comme ceux décrits dans le document de brevet WO2015007991 . De préférence, les moyens de fluidification et de réduction de volume de neige comprennent une pluralité de sonotrodes 128 qui sont inclinées par rapport à l'horizontale et à la verticale, par exemple à un angle de l'ordre de 45°.The means of fluidification and reduction of snow volume may advantageously comprise ultrasonic generators, for example as those described in the patent document. WO2015007991 . Preferably, the means of fluidification and reduction of snow volume comprise a plurality of sonotrodes 128 which are inclined relative to the horizontal and the vertical, for example at an angle of the order of 45 °.

Les sonotrodes 128 s'étendent avantageusement à une hauteur inférieure à celle des organes 118 de malaxage, par exemple au niveau de la partie intermédiaire 100b.The sonotrodes 128 advantageously extend to a height less than that of the kneading members 118, for example at the intermediate portion 100b.

Les sonotrodes 128 s'étendent depuis deux côtés opposés de la trémie 100, plus précisément depuis les parois latérales 110a longitudinales, le cas échéant de manière sensiblement symétrique par rapport à un plan médian longitudinal de la trémie 100. A chaque côté de la trémie 100, les sonotrodes 128 peuvent être sensiblement parallèles entre elles.The sonotrodes 128 extend from two opposite sides of the hopper 100, more precisely from the longitudinal side walls 110a, where appropriate substantially symmetrically with respect to a longitudinal median plane of the hopper 100. At each side of the hopper 100 the sonotrodes 128 may be substantially parallel to each other.

Les sonotrodes 128 ont une extrémité proximale 130 fixée à une paroi latérale 110a longitudinale et une extrémité distale 132 libre. De préférence, l'extrémité distale 132 libre est située plus bas que l'extrémité proximale 130, et pointe par exemple en direction du fond de la trémie 100.The sonotrodes 128 have a proximal end 130 attached to a longitudinal side wall 110a and a distal end 132 free. Preferably, the free distal end 132 is located lower than the proximal end 130, and points for example toward the bottom of the hopper 100.

On notera que les sonotrodes 128 sont avantageusement agencées en quinconce, notamment sur deux rangées à chaque côté de la trémie 100.It will be noted that the sonotrodes 128 are advantageously arranged in staggered rows, in particular in two rows at each side of the hopper 100.

En particulier, les sonotrodes 128 s'étendent de manière sensiblement parallèle à la partie de la paroi latérale 110a longitudinale de la partie intermédiaire 100b à laquelle ces sonotrodes 128 sont rattachées.In particular, the sonotrodes 128 extend substantially parallel to the portion of the longitudinal side wall 110a of the intermediate portion 100b to which these sonotrodes 128 are attached.

Pour favoriser la diffusion des ultrasons à travers la neige, le fond de la trémie 100 peut être rempli d'eau jusqu'à immerger en tout ou partie les sonotrodes 128. Ainsi, l'ouverture de sortie 104 principale pour évacuer la neige peut être agencée de manière à déboucher à une hauteur supérieure à celle où sont agencées les sonotrodes 128, comme par exemple au-dessus de l'extrémité distale libre 132, et de préférence à hauteur ou au-dessus de l'extrémité proximale 130, comme visible sur la figure 13.To promote the diffusion of ultrasound through the snow, the bottom of the hopper 100 can be filled with water until all or part of the sonotrodes 128 are immersed. Thus, the main outlet opening 104 for evacuating the snow can be arranged to open at a height greater than that where the sonotrodes 128 are arranged, such as above the free distal end 132, and preferably at or above the proximal end 130, as visible on the figure 13 .

On notera que la trémie 100 est dépourvue de moyens de tassement de la neige qui est introduite en entrée, ce qui évite de former des blocs compacts de neige dans la trémie 100.It will be noted that the hopper 100 is devoid of means for compacting the snow which is introduced at the entrance, which avoids forming compact blocks of snow in the hopper 100.

L'ensemble 200 d'alimentation comprend un tapis 202 de convoyage, de type à bande sans fin, et un broyeur 204, agencés hors de la trémie 10, et qui sont configurés pour émietter la neige en amont du traitement à l'intérieur de la trémie 100, c'est-à-dire avant introduction de cette neige dans la trémie 100.The feed assembly 200 comprises an endless conveyor conveyor belt 202 and a crusher 204, arranged outside the hopper 10, and which are configured to crumble the snow upstream of the treatment inside the hopper 10. the hopper 100, that is to say before introduction of this snow into the hopper 100.

Le tapis 202 de convoyage peut être avantageusement incliné, de préférence en direction du broyeur 204.The conveyor belt 202 may advantageously be inclined, preferably towards the mill 204.

Le tapis 202 de convoyage est supporté par un châssis ou structure 206 porteuse, qui peut aussi être configurée pour supporter le broyeur 2.The conveyor belt 202 is supported by a carrier frame or structure 206, which may also be configured to support the mill 2.

La structure 206 porteuse est munie de flancs, cornières ou bords 208 latéraux anti-déversement qui s'étendent à deux côtés longitudinaux opposés du tapis 202 de convoyage pour éviter un déversement de neige pré-brassée de part et d'autre du tapis 202 de convoyage.The carrier structure 206 is provided with flanks, angles or lateral anti-spill edges 208 which extend on two opposite longitudinal sides of the conveyor belt 202 to prevent a pre-brewed snow spill on either side of the carpet 202 of conveying.

Les bords 208 latéraux sont avantageusement mobiles par rapport au tapis 202 de convoyage et à la structure 206 porteuse, par exemple en rotation ou translation selon un axe sensiblement parallèle à la direction dans laquelle s'étend le tapis 202 de convoyage. L'ensemble 200 d'alimentation comprend des moyens d'entraînement, comme un moteur hydraulique (non représenté), destinés à déplacer les bords 208 latéraux anti-déversement, par rapport au tapis 202 de convoyage et à la structure 206 porteuse, de préférence selon un mouvement de va-et-vient. Cela permet, en particulier par grand froid, d'empêcher la neige de coller aux bords 208 du tapis 202 de convoyage. Selon une possibilité, les bords 208 latéraux sont par exemple formés par des tapis sans fin.The lateral edges 208 are advantageously movable with respect to the conveyor belt 202 and to the carrier structure 206, for example in rotation or translation along an axis substantially parallel to the direction in which the conveyor belt 202 extends. The feed assembly 200 comprises driving means, such as a hydraulic motor (not shown), intended to move the lateral anti-spill edges 208 with respect to the conveyor belt 202 and the carrier structure 206, preferably in a back-and-forth motion. This makes it possible, particularly in very cold weather, to prevent the snow from sticking to the edges 208 of the conveyor belt 202. According to one possibility, the side edges 208 are for example formed by endless belts.

Le tapis 202 de convoyage est par exemple entraîné par un arbre moteur 210, monté mobile en rotation par rapport à la structure 206 porteuse, à une extrémité du tapis 202 de convoyage. La structure 206 porteuse peut aussi comprendre un arbre récepteur 214, monté libre en rotation sur celle-ci, et agencé à une autre extrémité du tapis 202 de convoyage. L'arbre moteur 210 et le cas échéant l'arbre récepteur 212 peuvent comprendre des pignons destinés à engrener avec le tapis 202 de convoyage. La structure 206 porteuse peut comprendre par ailleurs des bandes 214 de glissement destinées à supporter le tapis 202 de convoyage entre les arbres moteur 210 et récepteur 212. Les bandes 214 de glissement sont sensiblement orthogonales aux arbres 210, 212 moteur et récepteur. Un rouleau 216 de guidage peut aussi être prévu pour tendre le tapis 202 de convoyage.The conveyor belt 202 is for example driven by a motor shaft 210, rotatably mounted relative to the carrier structure 206, at one end of the conveyor belt 202. The carrier structure 206 may also include a receiver shaft 214, rotatably mounted thereon, and arranged at another end of the conveyor belt 202. The driving shaft 210 and, if appropriate, the receiving shaft 212 may comprise sprockets intended to mesh with the conveyor belt 202. The carrier structure 206 may further comprise sliding strips 214 for supporting the conveyor belt 202 between the motor shaft 210 and the receiver shaft 212. The sliding strips 214 are substantially orthogonal to the motor shaft 210, motor 212 and receiver. A guide roller 216 may also be provided to tension the conveyor belt 202.

Avantageusement, le tapis 202 de convoyage présente une longueur de l'ordre de trois à cinq mètres, ce qui permet de recevoir le cas échéant le volume de neige déchargé par un engin 300 et permet déstructuration suffisante de la neige en amont de la trémie, tout en offrant un encombrement limité facilitant le transport et le dispositif du dispositif in situ.Advantageously, the conveyor belt 202 has a length of the order of three to five meters, which makes it possible to receive, if necessary, the volume of snow discharged by a machine 300 and allows sufficient destructuring of the snow in upstream of the hopper, while providing a limited footprint facilitating transport and the device device in situ.

Selon l'exemple préféré des figures 1 à 5, le tapis 202 de convoyage est placé à l'amont du broyeur 204. Amont et aval s'entendent par rapport au sens de circulation de la neige vers la trémie 100. Le tapis 202 de convoyage reçoit la neige déversée par un engin de type camion benne ou tractopelle et conduit la neige jusqu'au broyeur 204, en la pré-brassant.According to the preferred example of Figures 1 to 5 , the conveyor belt 202 is placed upstream of the mill 204. Amont and downstream agree with respect to the direction of flow of the snow towards the hopper 100. The conveyor belt 202 receives the snow spilled by a type of machine dump truck or backhoe loader and drives the snow to the mill 204, pre-mixing it.

Selon l'exemple des figures 6 à 13, qui n'est pas conforme à l'invention, le tapis 202 de convoyage est placé à l'aval du broyeur 204. Le broyeur 204 reçoit la neige déversée par un engin de type camion benne ou tractopelle et la neige émiettée par le broyeur 204 est ensuite conduite et pré-brassée par le tapis 202 de convoyage jusqu'à la trémie 100. La trémie 100 et la structure 206 porteuse peuvent ici comprendre des moyens de support et de réception, comme des crochets 134, ici rattachés à la trémie 100, et un ou des axes 218 d'appui, ici rattachés à la structure 206 porteuse, pour permettre à la structure 206 porteuse de prendre appui sur la trémie 100.According to the example of Figures 6 to 13 , which is not in accordance with the invention, the conveyor belt 202 is placed downstream of the crusher 204. The crusher 204 receives the snow discharged by a dump truck or backhoe loader and the snow crumbled by the crusher 204 is then conducted and pre-brewed by the conveyor belt 202 to the hopper 100. The hopper 100 and the carrier structure 206 may here comprise support and receiving means, such as hooks 134, here attached to the hopper 100, and one or more support axes 218, here attached to the carrier structure 206, to allow the carrier structure 206 to rest on the hopper 100.

Selon l'exemple des figures 1 à 5, l'ensemble 200 d'alimentation peut comprendre des moyens de conduction ou d'amenée configurés pour conduire la neige pré-brassée depuis le broyeur 204 jusqu'à la trémie 100. Le broyeur 204 est situé en contrebas de la trémie 100, à une hauteur inférieure à celle-ci, si bien que les moyens de conduction s'étendent avantageusement de bas en haut depuis une extrémité proximale agencée au niveau du broyeur 204 jusqu'à une extrémité distale agencée au niveau de l'ouverture 102 d'entrée. L'extrémité distale est de préférence située à l'aplomb de l'ouverture d'entrée 102 afin que la neige pré-broyée amenée par le tapis 202 de convoyage chute et se brise dans la trémie 100.According to the example of Figures 1 to 5 the feed assembly 200 may comprise conduction means or feed means configured to drive the pre-brewed snow from the mill 204 to the hopper 100. The mill 204 is located below the hopper 100, a height less than this, so that the conduction means advantageously extend upwardly from a proximal end arranged at the mill 204 to a distal end arranged at the inlet opening 102 . The distal end is preferably located vertically above the inlet opening 102 so that the pre-milled snow fed by the conveyor belt 202 drops and breaks in the hopper 100.

Les moyens de conduction peuvent comprendre un conduit 220 de guidage destiné à guider la neige projetée en sortie du broyeur 204 jusqu'à la trémie 100. L'ensemble du conduit 220 de guidage et du broyeur 204 peut être par exemple formé par une turbofraise à neige. Le conduit 220 de guidage a avantageusement un contour fermé. Au lieu d'un conduit 220 de guidage, les moyens de conduction pourraient comprendre un tapis de convoyage similaire à celui illustré aux figures 6 à 13.The conduction means may comprise a guide duct 220 intended to guide the projected snow at the outlet of the mill 204 to the hopper 100. The assembly of the guide duct 220 and the mill 204 may for example be formed by a turbofan to snow. The guide duct 220 advantageously has a closed contour. Instead of a guide duct 220, the conduction means could comprise a conveyor belt similar to that illustrated in FIGS. Figures 6 to 13 .

L'extrémité distale du conduit 220 de guidage présente avantageusement une paroi 222 déflectrice destinée à rabattre le flux de neige en direction de l'ouverture d'entrée 102. La paroi 222 déflectrice est agencée sur la trajectoire du flux de neige projetée, si bien que la neige se brise contre la paroi 222 déflectrice, qui contribue ainsi à désagréger cette neige avant introduction dans la trémie 100. L'extrémité distale du conduit 220 de guidage est ici de forme évasée pour une meilleure répartition de la neige entrant dans la trémie 100.The distal end of the guide duct 220 advantageously has a deflecting wall 222 for folding the flow of snow towards the inlet opening 102. The deflecting wall 222 is arranged on the trajectory of the projected snow flow, although that the snow breaks against the deflecting wall 222, which thus contributes to disintegrate the snow before introduction into the hopper 100. The distal end of the guide duct 220 is here of flared shape for a better distribution of the snow entering the hopper 100.

Par ailleurs, les moyens de conduction peuvent être orientables, c'est-à-dire mobiles par rapport à la trémie 100, afin de diriger si besoin le flux de neige vers des zones peu encombrées de la trémie 100. En particulier, l'ensemble 200 d'alimentation peut comprendre des moyens d'entraînement, comme par exemple un moteur ou actionneur hydraulique qui permet aux moyens de conduction de se déplacer selon un mouvement de va-et-vient, par exemple en rotation autour de l'axe le long duquel ils s'étendent.Moreover, the conduction means can be orientable, that is to say mobile with respect to the hopper 100, in order to direct the flow of snow if necessary towards unencumbered areas of the hopper 100. In particular, the 200 together power supply may comprise drive means, such as for example a motor or hydraulic actuator that allows the conduction means to move in a back and forth motion, for example in rotation about the axis the along which they extend.

Le broyeur 204 peut comprendre un ou plusieurs organes 224 de pré-brassage pouvant être entraînés en rotation autour de l'axe le long duquel ils s'étendent. Ce ou ces organes 224 de pré-brassage peuvent être de type fraise à neige, comme illustré sur les figures 1 à 5, ou vis hélicoïdale sans fin ou encore hérisson, comme illustré sur les figures 6 à 13. Les organes 224 de pré-brassage peuvent être sensiblement parallèles entre eux.The mill 204 may comprise one or more pre-mixing members 224 that can be rotated about the axis along which they extend. This or these pre-brewing members 224 may be of the strawberry type, as illustrated in FIGS. Figures 1 to 5 , or endless helical screw or hedgehog, as illustrated on the Figures 6 to 13 . The pre-mixing organs 224 may be substantially parallel to each other.

Selon l'exemple des figures 6 à 13, le broyeur 204 peut comprendre un bac 226 de pré-brassage adapté pour recevoir la neige et à l'intérieur duquel sont avantageusement agencés le ou les organes 224 de pré-brassage.According to the example of Figures 6 to 13 the mill 204 may comprise a pre-mixing tank 226 adapted to receive the snow and inside which are advantageously arranged the pre-mixing element or bodies 224.

Le bac 226 de pré-brassage peut comprendre deux flasques 228 latéraux, ici sensiblement parallèles, entre lesquels s'étendent les organes 224 de pré-brassage, et le cas échéant un limiteur 230 de hauteur. Les organes 224 de pré-brassage, et le limiteur 230 de hauteur, s'étendent ici d'un flasque 228 à l'autre.The pre-mixing tank 226 may comprise two lateral flanges 228, here substantially parallel, between which the pre-mixing members 224 extend and, if necessary, a limiter 230 of height. The pre-mixing organs 224 and the height limiter 230 extend here from one flange 228 to the other.

Le bac 226 de pré-brassage peut aussi comprendre une paroi 232 mobile par rapport aux flasques 228, entre une position d'ouverture (figures 6 et 7) où cette paroi 232 mobile libère un passage entre les flasques 228, et une position de fermeture (non représentée) dans laquelle la paroi 232 mobile ferme ce passage. Cette paroi 232 mobile fait office de clapet afin de fermer l'entrée du broyeur 204 lorsque l'engin de déchargement n'est plus en phase de déchargement. La paroi 232 mobile est avantageusement montée mobile en rotation par rapport aux flasques 228. Le bac 226 de pré-brassage un ou des actionneurs, comme des vérins 234, pour déplacer la paroi 232 mobile de la position de fermeture à la position d'ouverture et inversement.The pre-mixing tank 226 may also comprise a wall 232 movable relative to the flanges 228, between an open position ( Figures 6 and 7 ) where this movable wall 232 releases a passage between the flanges 228, and a closed position (not shown) in which the movable wall 232 closes this passage. This movable wall 232 acts as a valve to close the inlet of the mill 204 when the unloading machine is no longer unloading phase. The movable wall 232 is advantageously rotatably mounted relative to the flanges 228. The pre-mixing tank 226 or actuators, such as cylinders 234, to move the wall 232 movable from the closed position to the open position and vice versa.

De l'autre côté des flasques 228, opposé à celui où est disposée la paroi 232 mobile, les flasques 228 délimitent une ouverture permettant à la neige pré-broyée d'être emportée par le tapis 202 de convoyage en direction de la trémie 100.On the other side of the flanges 228, opposite the one where the movable wall 232 is arranged, the flanges 228 define an opening allowing the pre-ground snow to be carried by the conveyor belt 202 towards the hopper 100.

Par ailleurs, les bords supérieurs 236 des flasques 228 peuvent délimiter entre eux une ouverture supérieure située à l'aplomb des organes 224 de pré-brassage.Furthermore, the upper edges 236 of the flanges 228 may delimit between them an upper opening located vertically above the pre-mixing members 224.

Le bac 226 de pré-brassage peut comprendre une ou plusieurs barres 238 de rigidification espacées les unes des autres et s'étendant d'un flasque 202 latéral à l'autre, au-dessus des organes 224 de pré-brassage. Ces barres 238 permettent de rigidifier le bac 226 de pré-brassage et peuvent être aimantées pour retenir d'éventuels éléments métalliques présents dans la neige déversée. Ces barres 228 contribuent aussi à la désagrégation de blocs de neige lors du déversement. Les barres 238 sont avantageusement parallèles entre elles, rectilignes, et délimitent entre elles des espaces libres 240.The pre-mixing tank 226 may comprise one or more stiffening bars 238 spaced apart from one another and extending from one flange 202 laterally to the other, above the pre-mixing members 224. These bars 238 make it possible to stiffen the pre-mixing tray 226 and may be magnetized to retain any metallic elements present in the spilled snow. These bars 228 also contribute to the disintegration of snow blocks during the spill. The bars 238 are advantageously parallel to each other, rectilinear, and delimit between them free spaces 240.

L'ensemble 200 d'alimentation comprend de préférence des moyens de régulation de débit configurés pour limiter le débit de neige entrant dans la trémie 100. Ces moyens de régulation de débit peuvent comprendre un limiteur 230 de hauteur de neige, par exemple en sortie du broyeur 204 ou au niveau du tapis 202 de convoyage. Ce limiteur 230 de hauteur peut être une lame, une vis sans fin, ou un hérisson, par exemple mobile en rotation autour de l'axe le long duquel il s'étend. Alternativement ou en complément, les moyens de régulation de débit peuvent comprendre un régulateur de la vitesse d'avancement du tapis 202 de convoyage pour limiter le débit de neige déversée dans la trémie 100.The feed assembly 200 preferably comprises flow control means configured to limit the flow of snow entering the hopper 100. These flow control means may comprise a limiter 230 of snow height, for example at the outlet of the grinder 204 or at conveyor belt 202. This limiter 230 of height may be a blade, a worm, or a hedgehog, for example mobile in rotation about the axis along which it extends. Alternatively or in addition, the flow control means may comprise a regulator of the speed of advancement of conveyor belt 202 to limit the flow of snow discharged into hopper 100.

Selon une possibilité avantageuse, on notera que le dispositif 1 peut comprendre au moins un aimant 136 destiné à retenir des éléments métalliques pouvant être présents dans la neige traitée.According to an advantageous possibility, it will be noted that the device 1 may comprise at least one magnet 136 intended to retain metal elements that may be present in the treated snow.

En particulier, le dispositif 1 peut comprendre un aimant 136a agencé au niveau d'une des parois latérales 110, notamment une des parois latérales 110b transversales, comme visible sur la figure 12, de préférence dans la partie haute 100a, à hauteur des organes 122 de malaxage ou le cas échéant entre les deux niveaux auxquels sont agencés les organes 122 de malaxage.In particular, the device 1 may comprise a magnet 136a arranged at one of the side walls 110, in particular one of the transverse side walls 110b, as visible on FIG. figure 12 , preferably in the upper part 100a, at the height of the kneading members 122 or, where appropriate, between the two levels at which the kneading members 122 are arranged.

Alternativement ou en complément, le dispositif 1 peut comprendre un aimant 136b agencé le long de la paroi de fond 112, et/ou un aimant agencé à travers ou à côté de l'ouverture de sortie 104 principale. Plus précisément, la grille 108 de filtrage peut être aimantée. Le dispositif 1 peut aussi comprendre un aimant au niveau du broyeur 204 ou du tapis 202 de convoyage, comme par exemple les barres 238 aimantées décrites précédemment.Alternatively or in addition, the device 1 may comprise a magnet 136b arranged along the bottom wall 112, and / or a magnet arranged through or next to the main outlet opening 104. More precisely, the filtering grid 108 can be magnetized. The device 1 may also comprise a magnet at the grinder 204 or conveyor belt 202, such as for example the magnetic bars 238 described above.

Le dispositif 1 peut comprendre par ailleurs un réservoir de stockage (non représenté), un premier circuit de transfert adapté pour transférer la neige traitée, depuis l'ouverture de sortie 104 jusqu'au réservoir de stockage, par exemple par l'intermédiaire d'une pompe, et avantageusement un deuxième circuit de transfert adapté pour transférer de l'eau liquide depuis le réservoir de stockage jusqu'au dispositif d'injection d'eau liquide, par exemple aussi via une pompe.The device 1 may furthermore comprise a storage tank (not shown), a first transfer circuit adapted to transfer the treated snow, from the outlet opening 104 to the storage tank, for example by means of a pump, and advantageously a second transfer circuit adapted to transfer liquid water from the storage tank to the storage device. injection of liquid water, for example also via a pump.

Le réservoir de stockage est fixe, tandis que le reste du dispositif, notamment la trémie 100 et l'ensemble 200 d'alimentation, sont susceptibles d'être déplacés par exemple par camion en vue d'être installés au sein d'un site à déneiger, c'est-à-dire au plus près de la neige à faire fondre.The storage tank is fixed, while the rest of the device, in particular the hopper 100 and the feed assembly 200, are likely to be moved for example by truck for installation within a site to to clear snow, that is to say closer to the snow to melt.

L'eau stockée dans le réservoir de stockage est ainsi réutilisée pour la fonte de neige. Hors période de fonctionnement du dispositif 1, l'eau présente dans le réservoir de stockage peut bien entendu être utilisée à d'autres fins, en fonction du site où est installé le dispositif 1.The water stored in the storage tank is thus reused for melting snow. Outside the operating period of the device 1, the water present in the storage tank can of course be used for other purposes, depending on the site where the device 1 is installed.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit ci-dessus, ce mode de réalisation n'ayant été donné qu'à titre d'exemple. Des modifications sont possibles, notamment du point de vue de la constitution des divers éléments ou par la substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention, tel que défini dans les revendications.Of course, the invention is not limited to the embodiment described above, this embodiment having been given as an example. Modifications are possible, particularly from the point of view of the constitution of the various elements or by the substitution of technical equivalents, without departing from the scope of the invention as defined in the claims.

Claims (9)

  1. A snow brewing device (1) comprising a hopper (100), the hopper (100) having an inlet opening (102) for receiving snow, and means for reducing the volume of snow introduced into the hopper (100), the device (1) further comprising a supply set (200) configured to lead snow from outside the hopper (100) up to the inlet opening (102), the supply set (200) comprising at least one conveyor belt (202) and a crusher (204) allowing pre-brewing snow before introduction into the hopper (100), characterized in that the conveyor belt (202) is arranged upstream of the crusher (204).
  2. The device (1) according to claim 1, wherein the conveyor belt (202) is inclined in the direction of the crusher (204).
  3. The device (1) according to claim 1 or 2, wherein the conveyor belt (202) is bordered by two movable lateral edges (208) arranged on either side thereof to prevent a spill-off of snow at the side of the conveyor belt (202), and drive means configured to displace the two lateral edges (208) relative to the conveyor belt (202).
  4. The device (1) according to any of claims 1 to 3, wherein the crusher (204) is arranged down below the inlet opening (102) and the supply set (200) comprises means for leading snow from the crusher (204) up to the inlet opening (102).
  5. The device (1) according to any of claims 1 to 4, wherein the device (1) comprises flow rate regulation means configured to limit the flow rate of snow entering into the hopper (100).
  6. The device (1) according to any of claims 1 to 5, wherein the means for reducing the volume of snow comprise a plurality of sonotrodes (128) intended to generate ultrasounds inside the hopper (100), said sonotrodes (128) being inclined.
  7. The device (1) according to claim 6, wherein the hopper (100) comprises an outlet opening (106) arranged above the plurality of sonotrodes (128).
  8. The device (1) according to any of claims 1 to 7, wherein the means for reducing the volume of snow comprise a device for injecting liquid water inside the hopper (100).
  9. The device (1) according to any of claims 1 to 8, wherein the device (1) comprises at least one magnet (136, 136a, 136b) intended to retain metallic elements likely to be present in snow processed by the device (1).
EP16201506.9A 2015-11-30 2016-11-30 Snow stirring device Active EP3173529B1 (en)

Applications Claiming Priority (1)

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FR1561608A FR3044331B1 (en) 2015-11-30 2015-11-30 SNOW BREWING DEVICE

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Publication number Priority date Publication date Assignee Title
CN107227711A (en) * 2017-08-01 2017-10-03 米爱荣 A kind of snow cleaning truck for road
CN110387854B (en) * 2019-08-09 2021-05-11 绍兴和为贵机械科技有限公司 Snow fast removing vehicle running along electric vehicle track
CN111686888B (en) * 2020-06-11 2021-10-26 大冶市都鑫摩擦粉体有限公司 A automatic reation kettle device for producing artifical graphite
CN112900339B (en) * 2021-01-20 2023-02-03 临沂大学 Road and bridge ice and snow clearing device

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US1051969A (en) * 1911-05-05 1913-02-04 Patrick D Riordan Snow-destroyer.
US1718360A (en) * 1927-03-22 1929-06-25 Michael Zielinski Automatic snow cleaning and melting machine
US4071966A (en) * 1976-11-23 1978-02-07 Nathan Cohen Apparatus for removing snow from roadway
FR2900167A1 (en) * 2006-04-20 2007-10-26 Maurice Villibord Snow collecting and melting device for use during winter season, has roller provided with scrubbing brushes, where rotation axis of roller is designed to project snow on mat equipped of gutters, and driving mat for collecting snow
FR3008721B1 (en) 2013-07-19 2018-02-09 Cie Maritime D'expertises DEVICE AND METHOD FOR RECOVERY
US20150315758A1 (en) * 2014-05-02 2015-11-05 Amari Spievey Snow removal apparatus

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EP3173529A1 (en) 2017-05-31
FR3044331B1 (en) 2018-11-16

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