EP2092124B1 - Dispositif d'épandage à monter sur un véhicule de support - Google Patents

Dispositif d'épandage à monter sur un véhicule de support Download PDF

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Publication number
EP2092124B1
EP2092124B1 EP07846698A EP07846698A EP2092124B1 EP 2092124 B1 EP2092124 B1 EP 2092124B1 EP 07846698 A EP07846698 A EP 07846698A EP 07846698 A EP07846698 A EP 07846698A EP 2092124 B1 EP2092124 B1 EP 2092124B1
Authority
EP
European Patent Office
Prior art keywords
spreading
liquid
feed
impeller
scattering
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.)
Not-in-force
Application number
EP07846698A
Other languages
German (de)
English (en)
Other versions
EP2092124A1 (fr
Inventor
Erik Van Gelder
Arjo Reinders
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.)
Schmidt Holding GmbH
Original Assignee
Schmidt Holding GmbH
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 Schmidt Holding GmbH filed Critical Schmidt Holding GmbH
Publication of EP2092124A1 publication Critical patent/EP2092124A1/fr
Application granted granted Critical
Publication of EP2092124B1 publication Critical patent/EP2092124B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
    • E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
    • E01C19/203—Centrifugal spreaders with substantially vertical axis
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C2019/2055—Details not otherwise provided for
    • E01C2019/207—Feeding the distribution means

Definitions

  • the present invention relates to a spreader for mounting on a host vehicle, comprising a spreader hopper having a spreader hopper, a liquid-storing liquid container with a liquid conveyor, a dispenser for humidified spreading material and a feeder, which of the spreading material conveyor with dry spreading material and is fed by the liquid conveyor with liquid and the dispenser fed with moistened spreading material.
  • the stocked in the scattering material reservoir dry spreader is typically moistened before application or during application. On the one hand, this should improve the adherence of the scattering substance to the road surface and in this way reduce the spreading of the scattering substance by wind or vortex. Furthermore, the moistening serves to accelerate and improve the thawing effect especially of discharged salt.
  • the US 5931393 A discloses a spreader for mounting on a host vehicle, wherein the feeder comprises a venturi in which the mixing of dry spill and liquid occurs.
  • the Venturi tube of the feeder opens an air supply line through which air is blown into the feeder by means of a blower.
  • the present invention seeks to provide a spreader of the type described, in its use, a particularly uniform scattering pattern can be achieved while maintaining the predetermined scattering parameters (scatter, spreading density, liquid content).
  • a spreader of the generic type the scattering material enters the feed device upstream of the blower and flows through the blower.
  • the present invention it is thus a central feature that an air flow is actively generated in the feeder, namely using a blower intended for this purpose, wherein the air flow induced by the blower passes through the feeder in the direction in which the scattering substance (FIG. without the airflow generated by the blower) the feeder flows through.
  • the feed device has an air inflow opening, through which the air drawn in by the blower enters the feed device. Into those airstreams the dry spreading material and the liquid serving for its moistening are introduced.
  • the liquid is not in a by gravity slipping ( FR 2661201 A1 ) or transported by a screw conveyor ( EP 1491686 A2 and US 3,420,451 ), except for an air pore volume compact amount of dust introduced, but rather in an air flow, which carries the scattering material with it.
  • the air flowing through the feeder typically still occupies significantly more than 50% of the volume of the feeder, even at the highest possible throughput of material throughput.
  • the volume content of the scattering substance could be between about 10% and 40%, preferably between about 20% and 30%, whereby this proportion decreases correspondingly at a scattering substance throughput reduced compared to the maximum value (eg, well below 1%). ).
  • the spreader according to the invention therefore, more or less scattered scattering grains are transported through the air flow generated by means of the fan through the feed device.
  • the resulting decisive Advantages lie on the one hand in the possibility of optimal moistening of the scattering grains on their entire surface and on the other hand in the ability to actively influence the impact velocity of the moistened scattering material on the dispensing by a corresponding control of the velocity of the air flow, in particular by an impact velocity is set, the significantly above that which would result solely from a gravitational fall or slippage of the moistened spreading material onto the spreading plate.
  • a first preferred embodiment of the invention is characterized in that the impeller of the fan upstream of the liquid feed is arranged in the feeder.
  • the impeller of the fan causes a turbulence of transported with the airflow scattering particles, which has a favorable effect on the subsequent uniform moistening of the scattering substance. Further, as compared with feeding the liquid upstream of the blower, the risk of wet spreading on the impeller of the blower is reduced.
  • a rotating comminuting tool is arranged downstream of the impeller within the feed device.
  • the comminution tool may have, together with the impeller, rotationally driven striking elements which may be designed, for example, as flat impact plates.
  • the grain size of the scattering material particles is evened out, which contributes to an increased homogeneity of the scattering substance to be applied after its subsequent moistening.
  • the comminution can in individual cases to a pulverization of the scattering material rich, the degree of achievable crushing not least on the volume content of the scattering substance in the air flow (see above) and is in an inverse relationship to this.
  • the subsequent moistening of the scattering substance particles also has an advantageous effect on the subsequent moistening, in that it promotes the uniform wetting of the scattering material particles on the surface thereof.
  • the advantages set out above are particularly pronounced when the impact elements in the axial direction are distributed over several levels, ie the shredding tool is made multi-level.
  • the comminuting tool is designed as a combined comminution and mixing tool, in that the liquid feed takes place into the feed device upstream or in the area of the comminuting tool.
  • An intimate contact between the (comminuted) scattering material particles and the liquid takes place on the rotating impact elements of the combined comminution and mixing tool, it also being possible for liquid droplets to be comminuted or atomized by the impact elements, which in turn has a positive effect on the uniform wetting of the surface the scattering particle shows.
  • the impact elements of the comminuting tool are distributed in the axial direction over several levels, it is particularly favorable if the liquid feed into the feed device takes place downstream of the first striking elements in the throughflow direction. In this case, the first striking elements in the direction of flow serve primarily to comminute the not yet moistened scattering material particles, while the impact elements arranged downstream of the liquid feed effect primarily the intimate wetting of the comminuted scattering material particles.
  • a further motor-driven impeller is provided downstream of the crushing tool or the combined crushing and mixing tool, which supports and amplifies the air flow caused by the fan.
  • the feed device of the spreader comprises a mixing housing in which the impeller and possibly the crushing tool and the further impeller is / are housed, open into the scattering material supply and the liquid supply and to which an outlet pipe or an outlet hose is connected.
  • the airflow generated by the blower Together with the humidified and crushed scattering material transported therein, the mixing housing leaves through the outlet pipe or the outlet hose. It is particularly advantageous if the outlet pipe or the outlet hose is deformable and / or variable position connected to the mixing housing to - to change the impact point of the humidified spreading material transporting air flow on the dispensing device - with fixedly mounted mixing housing.
  • the lower end of the outlet tube or outlet tube can be displaced relative to the dispensing device by means of an actuator. If a further impeller is provided in the sense described above, which supports and amplifies the air flow caused by the fan, then this is preferably arranged adjacent to a bottom of the mixing housing.
  • liquid supply is advantageously carried out in a substantially vertically downwardly flowed through section of the feeder. In this way gravitational asymmetries in the mixing zone are avoided.
  • the shown in the drawing only in the scope of the relevant here lower rear portion, designed to be mounted on a carrier vehicle and prepared spreader comprises the storage of dry scattering material (eg salt, grit, salt-grit mixture) serving silo-like scattering substance reservoir 1 with a scattering material -Förder Road 2, which is presently designed as a belt conveyor whose rear, protruding from the litter storage tank end is covered with a housing 3.
  • the spreader comprises a liquid container (not shown) which holds liquid (brine) and is provided with a liquid conveyor.
  • the spreader has a dispenser 4 for moistened spreading material, which in the present case in the commonly used manner comprises a spreading plate 5, which is driven in rotation by a hydraulic motor 6 about a vertical axis.
  • the dispensing device is suspended by means of the carrier 7 on the frame 8 of the spreader.
  • a feed device 9 is provided, which is supplied with liquid by the spreading material conveying device 2 with dry scattering material and by the liquid conveying device and feeds the spreading device with moistened scattering substance.
  • the feeder 9 comprises a vertically oriented cylindrical Mixed housing 10, which is suspended via two tabs 11 on the frame 8 of the spreader and, for stiffening the structure, with two brackets 12 connected to the carrier 7 for the dispensing device, wherein the two brackets 12 and the handling when pivoting the entire unit from Dispensing device 4 and feed device 9 should facilitate in a transport position.
  • the supply means comprises a top connected to the mixing housing transition piece 13, which represents a transition from the wider, approximately rectangular outlet opening for the scattering material in the housing 3 of the belt conveyor to the round cross-section of the mixing housing 10.
  • the mixing material supplied to the mixing housing 10 from the belt conveyor flows through the mixing housing in the vertical direction (arrow A) from top to bottom.
  • a central shaft 14 is arranged, which is rotatably mounted in the bearing sleeve 16 connected to the bottom 15 of the mixing housing 10 and driven in rotation by a motor 17 connected to the bearing sleeve 16 (arrow B).
  • a blower 18 is provided in the mixing housing 10, which comprises a mounted on the shaft 14 near the upper end of the impeller 19.
  • the impeller 19, which rotates together with the shaft 14, generates a top-down air flow L in the feeder 9.
  • the top opening of the transition piece 13 constitutes an air inflow opening through which air can enter the feeder, which, after having moved it Transition piece 13 and the mixing housing 10 has flowed through from top to bottom, the mixing housing 10 through the disposed at the bottom 15 outlet nozzle 20 again leaves.
  • air inlet openings could be provided for example in the wall of the transition piece 13 and / or in the region of the transition from the transition piece 13 to the mixing housing 10.
  • the air stream is added to the discarded by the belt conveyor dry scattering material.
  • the fan 18 is followed by a rotary comminuting tool 21 in the flow direction of the feed device.
  • This comprises a total of eight fixedly connected to the shaft 14, with this rotating impact elements 22, which are designed as flat, each in an axial plane projecting radially from the shaft 14, interchangeable attached to corresponding holders impact plates 23 and arranged in two mutually offset in the axial direction planes ,
  • eight fixed baffle elements 24 are provided, which project from the wall of the mixing housing 10 inwardly into the flow path of the air flow L.
  • the eight baffles 24 are arranged distributed two different axial planes, namely four of them as upper baffles 24 o between the fan 18 and the first in the flow direction, ie the upper impact plate 23 o and four more, offset with respect to the upper baffle elements in the circumferential direction, as lower baffles 24 u between the upper impact plates 23 o and the lower impact plates 23 u .
  • an inlet connection 25 for the supply of liquid into the interior of the mixing housing 10 is connected to the mixing housing.
  • a nozzle is provided, which ensures atomization of the liquid introduced into the mixing housing.
  • the (fast) rotating lower impact plates 23 u cause both intimate mixing of scattering particles and liquid as well as a further comminution of the liquid droplets and the pre-shredded in the first, upper stage of the comminution tool 21 scattering particles.
  • a combined comminution and mixing tool is provided in the embodiment shown.
  • another motor-driven impeller 26 is provided, which is also fixedly connected to the shaft 14 and thus rotates together with this.
  • the impeller is designed so that it supports and amplifies the air flow L caused by the fan 18.
  • the outlet nozzle 20 passes into an outlet pipe 27, which opens just above the spreading plate 5.
  • an actuator 29 is provided, which acts on the lower end of the outlet pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Disintegrating Or Milling (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Nozzles (AREA)

Claims (16)

  1. Dispositif d'épandage, destiné à être monté sur un véhicule porteur, comprenant un réservoir de matière d'épandage (1) pour stocker une matière d'épandage sèche avec un dispositif d'acheminement de la matière d'épandage (2), un réservoir à liquide pour le stockage de liquide, un dispositif de distribution (4) de la matière d'épandage humidifiée et un dispositif d'amenage (9) alimenté en matière d'épandage sèche par le dispositif d'acheminement de la matière d'épandage (2) et en liquide par le dispositif d'acheminement du liquide et qui charge le dispositif de distribution en matière d'épandage humidifiée,
    le dispositif d'amenage (9) comportant un orifice d'entrée d'air et dans le dispositif d'amenage (9) étant placée une soufflerie (18) comprenant une roue à ailettes (19) entraînée par moteur et générant un courant d'air (L) orienté dans la même direction que le passage de la matière d'épandage dans le dispositif d'amenage (9), caractérisé en ce que la matière d'épandage entre dans le dispositif d'amenage en amont de la soufflerie et circule à travers la soufflerie.
  2. Dispositif d'épandage selon la revendication 1, caractérisé en ce que la roue à ailettes (19) de la soufflerie (18) est placée en amont de l'alimentation en liquide dans le dispositif d'amenage (9).
  3. Dispositif d'épandage selon la revendication 1 ou la revendication 2, caractérisé en ce qu'à l'intérieur du dispositif d'amenage (9), un outil de concassage (21) rotatif est disposé en aval de la roue à ailettes (19).
  4. Dispositif d'épandage selon la revendication 3, caractérisé en ce que l'outil de concassage (21) comprend en commun avec la roue à ailettes (19) des éléments de battage (22) entraînés en rotation, notamment des plaques de battage (23).
  5. Dispositif d'épandage selon la revendication 4, caractérisé en ce que les éléments de battage (22) sont distribués sur plusieurs niveau dans l'axe.
  6. Dispositif d'épandage selon l'une quelconque des revendications 3 à 5, caractérisé en ce que l'outil de concassage (21) est réalisé sous la forme d'un outil mixte de concassage et de malaxage, en ce que l'alimentation de liquide dans le dispositif d'amenage (9) s'effectue en amont ou dans la région de l'outil de concassage (21).
  7. Dispositif d'épandage selon la revendication 5 et 6, caractérisé en ce que l'alimentation en liquide dans le dispositif d'amenage (9) s'effectue en aval du premier élément de battage (22) dans la direction de circulation.
  8. Dispositif d'épandage selon l'une quelconque des revendications 3 à 8, caractérisé en ce qu'en aval de l'outil de concassage (21) est réalisée une roue à ailettes (26) supplémentaire, laquelle assiste et renforce le courant d'air (L) provoqué par la soufflerie (18).
  9. Dispositif d'épandage selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le dispositif d'amenage (9) comprend un carter de malaxage (10) dans lequel est/sont logé(s) la roue à ailettes (19) et le cas échéant l'outil de concassage (21) et le cas échéant la roue à ailettes (26) supplémentaire, dans lequel débouchent l'acheminement de matière d'épandage et l'acheminement de liquide et sur lequel est raccordé un tube d'écoulement (27) ou un flexible d'écoulement.
  10. Dispositif d'épandage selon la revendication 9, caractérisé en ce que l'extrémité inférieure du tube d'écoulement (27) ou du flexible d'écoulement (29) est à position variable par rapport au dispositif de distribution (4).
  11. Dispositif d'épandage selon les revendications 8 et 9, caractérisé en ce que la roue à ailettes (26) supplémentaire est placée à proximité d'un fond (15) du carter de malaxage (10).
  12. Dispositif d'épandage selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'à l'intérieur du dispositif d'amenage (9) sont placés des éléments de rebondissement et/ou des éléments de guidage (24) stationnaires saillant dans le trajet de circulation.
  13. Dispositif d'épandage selon la revendication 12, caractérisé en ce que les éléments de rebondissement et/ou éléments de guidage (24) stationnaires sont placés en aval de la roue à ailettes (19).
  14. Dispositif d'épandage selon la revendication 12, caractérisé en ce que les éléments de rebondissement et/ou éléments de guidage (24) stationnaires sont distribués sur plusieurs niveaux dans l'axe.
  15. Dispositif d'épandage selon les revendications 5 et 14, caractérisé en ce que les niveaux des éléments de battage (22) rotatifs et les niveaux des éléments de rebondissement et/ou éléments de guidage (24) s'alternent dans la direction de circulation.
  16. Dispositif d'épandage selon l'une quelconque des revendications 1 à 15, caractérisé en ce que l'amenage de liquide s'effectue dans une partie traversée en aval, sensiblement à la verticale du dispositif d'amenage (9).
EP07846698A 2006-11-23 2007-11-21 Dispositif d'épandage à monter sur un véhicule de support Not-in-force EP2092124B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006055270A DE102006055270A1 (de) 2006-11-23 2006-11-23 Streugerät zum Aufbau auf ein Trägerfahrzeug
PCT/EP2007/010057 WO2008061714A1 (fr) 2006-11-23 2007-11-21 Dispositif d'épandage à monter sur un véhicule de support

Publications (2)

Publication Number Publication Date
EP2092124A1 EP2092124A1 (fr) 2009-08-26
EP2092124B1 true EP2092124B1 (fr) 2011-01-12

Family

ID=39079622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07846698A Not-in-force EP2092124B1 (fr) 2006-11-23 2007-11-21 Dispositif d'épandage à monter sur un véhicule de support

Country Status (5)

Country Link
EP (1) EP2092124B1 (fr)
AT (1) ATE495309T1 (fr)
DE (2) DE102006055270A1 (fr)
DK (1) DK2092124T3 (fr)
WO (1) WO2008061714A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011106086A1 (de) * 2011-06-08 2012-12-13 Aebi Schmidt Nederland Bv Streugerät
CN111305140A (zh) * 2020-03-25 2020-06-19 安徽安康塑业有限公司 一种前置挂载的组合式扫雪刷

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243996A (en) * 1938-05-12 1941-06-03 Bernice G Baughman Broadcasting machine
DE3829716A1 (de) * 1988-09-01 1990-04-05 Schoerling Waggonbau Streufahrzeug mit einer streuanlage
US5052627A (en) * 1990-05-23 1991-10-01 Charles Balmer Spreading of particulate material
US5931393A (en) * 1992-04-10 1999-08-03 Iboco, Inc. Salt-sand spreader with liquid injector
DE10328913B3 (de) * 2003-06-26 2005-03-24 Schmidt Holding Gmbh Streugerät

Also Published As

Publication number Publication date
WO2008061714A1 (fr) 2008-05-29
DE102006055270A1 (de) 2008-05-29
DK2092124T3 (da) 2011-05-09
DE502007006269D1 (de) 2011-02-24
ATE495309T1 (de) 2011-01-15
EP2092124A1 (fr) 2009-08-26

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