EP0435979B1 - Dispositif d'epandage - Google Patents

Dispositif d'epandage Download PDF

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Publication number
EP0435979B1
EP0435979B1 EP90909676A EP90909676A EP0435979B1 EP 0435979 B1 EP0435979 B1 EP 0435979B1 EP 90909676 A EP90909676 A EP 90909676A EP 90909676 A EP90909676 A EP 90909676A EP 0435979 B1 EP0435979 B1 EP 0435979B1
Authority
EP
European Patent Office
Prior art keywords
liquid
chute
pipe
spreading
spreader device
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.)
Expired - Lifetime
Application number
EP90909676A
Other languages
German (de)
English (en)
Other versions
EP0435979A1 (fr
Inventor
Johan Jansen
Johannes Sebulke
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.)
Alfred Schmid AG
Original Assignee
Alfred Schmid AG
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 Alfred Schmid AG filed Critical Alfred Schmid AG
Priority to AT90909676T priority Critical patent/ATE84338T1/de
Publication of EP0435979A1 publication Critical patent/EP0435979A1/fr
Application granted granted Critical
Publication of EP0435979B1 publication Critical patent/EP0435979B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a spreading device for distributing granulated, moistened spreading material, with a chute arranged obliquely to the vertical axis of rotation of a spreading plate with a channel-shaped bottom for applying granulated, not moistened thawing material from a storage container and with a line for the supply of liquid a liquid container to the jet of dew, the outflowing liquid being mixed into the dry jet of dew after it has left the chute and before it reaches the spreading disc.
  • the known spreading device does not always work with a satisfactory result. This is because, especially when there is strong cross winds and / or strong air turbulence behind the vehicle, a considerable proportion of the liquid can be carried away laterally with the air flow after leaving the spray nozzle and does not reach the thawing material in order to moisten it.
  • the loss of liquid is particularly large because it is sprayed, i.e. leaves the line as the finest droplets.
  • the mixing of thawing material and liquid is not optimal.
  • the point of contact of dry dew and liquid varies depending on whether a large or a small amount of dew leaves the chute.
  • the present invention has for its object to provide a spreading device in which an optimal, uniform moisture content of the spreading material can be achieved even under unfavorable operating conditions before it leaves the spreading plate, so that good adhesion of the spreading material is always achieved on the traffic area.
  • the line is arranged on the back of the bottom of the chute and that the line is inclined slightly relative to the chute, such that it forms a somewhat more acute angle with the leveling plate level than the chute.
  • the essence of the invention is the knowledge that the liquid has to be mixed in during the flight of the thawing substance jet, that is, not already on the chute and not only on the spreading plate. Due to the unpressurized supply of the liquid and the adaptation of its jet width to that of the thawing agent jet, there is a very even mixing of the two fractions "in the air".
  • a preferred embodiment provides that the liquid, for example in the form of a brine, as it were from the back into the dry jet of thawing material is introduced without there being any lateral deflection of the liquid or penetration of the jet of thawing material through the liquid.
  • the particles of dew from the chute fall to a certain extent into the liquid jet and are largely wetted in the process.
  • This moistening of the spreading material is still perfected after it strikes the spreading plate, where the moistened spreading material is first deflected at a baffle, which is arranged in the center of the spreading plate and is non-rotatably tapered towards the top; on the lateral surface of the spreading material flows downwards until it reaches the actual spreading plate level, where it is circulated again before it is swirled in the area of the throwing blades, and finally the spreading plate through the outer end of the throwing blades as a uniformly moist mass, in which the entire Liquid portion is bound to leave.
  • a baffle which is arranged in the center of the spreading plate and is non-rotatably tapered towards the top
  • a particularly advantageous embodiment of the invention consists in that the cross section of the line is curved like the channel-shaped bottom of the chute; the cross section can have the shape of a slim sickle.
  • the section of the pipe near the mouth may be open at the top.
  • the mouth of the line is slightly below the end of the chute; this enables very weak liquid flows to be mixed into the thawing agent jet without loss of liquid.
  • a particularly advantageous embodiment of the invention is that the moistened spreading material against a rotationally fixed in the center of the spreading plate Arranged, upwardly tapered impact body flows, which has on its circumference along radial planes grooves for forwarding the spreading material, which adjoin the surface of the spreading plate.
  • the already extensively moistened spreading material jet is directed down to the actual spreading disc level.
  • the grooves prevent the two fractions from segregating as a result of the rotational movement of the impact body, which is non-rotatably connected to the spreading plate, and furthermore improve the transmission of the angular momentum to the moistened spreading material hitting the rotating spreading plate.
  • the liquid in order to ensure pressure-free liquid guidance in the area of the line, provision is further made for the liquid to be supplied through a plurality of holes in the bottom part of the line; the holes can expediently be distributed over the entire line cross section, preferably in such a way that the holes are provided in several rows with a decreasing size downstream.
  • Fig. 1 shows a spreading plate 1, in the center of which a conical impact body 2 is attached.
  • the spreading disc 1 has radially extending throwing blades 3 on its top, from which the spreading material is thrown radially in the direction of the dashed arrows f.
  • the spreading disc 1 is driven by means of a vertical shaft 4, which is received in a bearing 5 on a frame 6.
  • a hydraulic drive motor 7 is seated on the bearing 5 as a rotary drive for the spreading plate 1.
  • a line 12 for the supply of liquid is fastened by means of spacers 13, which line is connected via a pipeline 14 to a liquid storage container (not shown).
  • the granulated, not yet moistened thawing material flows downwards through the chute 10 against the cone surface of the impact body 2 provided with grooves 15 (FIG. 2). Even before the thawing material jet 16 reaches the impact body, it flows into this jet its underside the liquid flow 17 is introduced from the line 12. Because the liquid flow 17 is depressurized, it is possible to absorb all of the liquid in the jet of thawing material, ie liquid is sprayed off to the side or its passage through the thawing agent jet is avoided.
  • a further mixing of the two fractions then takes place on the surface of the rotating impact body 2, along the grooves 15 of which the moistened spreading material is transported downwards in the direction of the arrow p in the direction of the top of the spreading plate 1 and during this Transport is circulated.
  • This circulation then continues on the inner ring section 18 of the spreading disc 1 between the impact body 2 and the inlet ends 19 of the throwing blades 3.
  • the mixing of the two fractions in the interior of the throwing blades 3 is then continued until a completely uniformly moistened spreading material leaves the outlet ends 20 of the throwing blades 3 in the direction of the arrows f.
  • an optimal throwing parabola results with the discharge directed upwards in accordance with the spreading inclination according to the arrows f.
  • Fig. 4 shows an enlarged, perspective view of the trough-shaped bottom 11 of the chute 10, on the back of which the line 12 for the liquid is arranged.
  • the cross section of the line 12 corresponds to a slim crescent shape, through the bottom part 21 of which the liquid is fed via a distribution chamber 22 which is connected to the liquid storage container via the pipe 14. So that this can be done without pressure and over the entire width of the base part, the latter has in the connection area with the distribution chamber 22 holes 23, which, as shown in FIG. 5, are provided in several rows, the hole sizes decreasing downstream from row to row.
  • This type of liquid supply ensures that the crescent-shaped cross section of the line 12 is acted on over its full width even with small amounts of liquid, the liquid flowing out of the line 12 according to the arrows 1 to form a wide liquid flow. It must always be ensured that the liquid flow 17 (FIG. 3) is approximately as wide as the thawing material flow 16 so that a complete wetting of the thawing material can be achieved.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)

Abstract

Un dispositif d'épandage pour la distribution de matière en granules mouillée par un liquide comprend un plateau d'épandage (1) entraîné en rotation par un axe vertical. Par l'intermédiaire d'un déversoir (10) ayant un fond en forme de gouttière (11), une matière de décongélation en granules, non humidifiée, est amenée sur le plateau (1). Par ailleurs, un liquide est amené par un conduit (12) pour le mouillage de la matière de décongélation. Le conduit (12) est monté à l'arrière du déversoir (10) de façon qu'il fasse, avec le plan dudit plateau, un angle un peu plus aigu que le déversoir (10). Par le conduit (12) débouchant à proximité de l'extrémité libre du déversoir (10), le liquide est mélangé et incorporé sans pression, à partir du bas, dans le jet de matière de décongélation séchée, avant que ce liquide atteigne le plateau d'épandage (1).

Claims (10)

  1. Dispositif d'épandage, pour distribuer un produit d'épandage granulé, humidifié avec un liquide, avec une goulotte (10), disposée inclinée par rapport à l'axe de rotation vertical d'un plateau d'éjection (1) et comportant un fond en forme de gouttière (11), pour appliquer un produit de dégèlement, granulé et non humide, venant d'un réservoir, et avec une conduite, pour l'amenée de liquide venant d'un réservoir à liquide vers le jet de produit de dégèlement, le liquide sortant étant mélangé dans le jet de produit de dégèlement, après que celui-ci ait quitté la goulotte et avant qu'il ait atteint le plateau d'éjection (1), caractérisé en ce que l'amenée de liquide s'effectue pratiquement sans pression, en ce que la conduite (12) débouche à proximité directe de l'extrémité libre de la goulotte (10) et en ce que les largeurs des jets de liquide et de produit de dégèlement sont adaptables l'une par rapport à l'autre.
  2. Dispositif d'épandage selon la revendication 1, caractérisé en ce que la conduite (12) est disposée sur la face arrière du fond (11) de la goulotte (10) et en ce que la conduite (12) est légèrement inclinée par rapport à la goulotte (10), de telle façon qu'elle fasse avec le plan du plateau d'éjection un angle un peu plus aigu que la goulotte (10).
  3. Dispositif d'épandage selon la revendication 1 ou 2, caractérisé en ce que la section transversale de la conduite (12) est d'une courbure identique à celle du fond en gouttière (11).
  4. Dispositif d'épandage selon la revendication 3, caractérisé en ce que la section transversale présente la forme d'une faucille élancée.
  5. Dispositif d'épandage selon la revendication 4, caractérisé en ce que le tronçon de conduite (12) situé près de l'embouchure est ouvert vers le haut.
  6. Dispositif d'épandage selon la revendication 2, caractérisé en ce que l'embouchure de la conduite (12) se trouve un peu en dessous de l'extrémité de la goulotte (10).
  7. Dispositif d'épandage selon la revendication 1, caractérisé en ce que le produit à épandre humidifié s'écoule vers un corps de percussion (2), disposé, assujetti en rotation, au centre du plateau d'éjection (1) et allant en s'effilant coniquement vers le haut, qui présente sur sa périphérie des cannelures (15) s'étendant le long de plans radiaux, destinées à continuer à diriger le produit à épandre et attenant à la face supérieure du plateau d'éjection (1).
  8. Dispositif d'épandage selon la revendication 2, caractérisé en ce que le liquide est amené par une pluralité de trous (23) ménagés dans la partie de fond (21) de la conduite (12).
  9. Dispositif d'épandage selon la revendication 8, caractérisé en ce que les trous (23) sont distribués sur la totalité de la section transversale de la conduite.
  10. Dispositif d'épandage selon la revendication. 9, caractérisé en ce que les trous (23) sont prévus en plusieurs rangées de grandeur décroissante vers l'aval de l'écoulement.
EP90909676A 1989-07-26 1990-06-15 Dispositif d'epandage Expired - Lifetime EP0435979B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90909676T ATE84338T1 (de) 1989-07-26 1990-06-15 Streuvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3924647 1989-07-26
DE3924647A DE3924647A1 (de) 1989-07-26 1989-07-26 Streuvorrichtung

Publications (2)

Publication Number Publication Date
EP0435979A1 EP0435979A1 (fr) 1991-07-10
EP0435979B1 true EP0435979B1 (fr) 1993-01-07

Family

ID=6385826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90909676A Expired - Lifetime EP0435979B1 (fr) 1989-07-26 1990-06-15 Dispositif d'epandage

Country Status (3)

Country Link
EP (1) EP0435979B1 (fr)
DE (2) DE3924647A1 (fr)
WO (1) WO1991002122A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589658B1 (fr) * 1992-09-21 2002-07-17 Matsushita Electric Industrial Co., Ltd. Incrustation de données graphiques avec mémorisation des paramètres graphiques
DE10007925C2 (de) * 2000-02-21 2002-01-17 Kuepper Weisser Gmbh Streuvorrichtung zum Ausbringen von angefeuchtetem Streugut
DE10007926C2 (de) * 2000-02-21 2002-10-02 Kuepper Weisser Gmbh Streuvorrichtung mit einem Zwischenbehälter zum Ausbringen von flüssigem Streugut
DE20114202U1 (de) * 2001-08-30 2002-02-07 Lindner, Anton, 83131 Nußdorf Sprühkasten
EP1775386A1 (fr) 2005-10-13 2007-04-18 Küpper-Weisser GmbH Véhicule d'épandage pour service d'hiver
DK1775387T3 (en) * 2005-10-13 2017-03-13 Küpper-Weisser GmbH Spreading device for winter service
DK1775385T3 (en) * 2005-10-13 2016-11-28 Küpper-Weisser GmbH Spreading device for winter service

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE291227C (fr) *
DE1299013B (de) * 1967-12-16 1969-07-10 Beilhack Maschf Martin Verfahren zum Streuen von Feuchtsalz
AT360070B (de) * 1975-12-15 1980-12-29 Kahlbacher Anton Vorrichtung zum bestreuen von verkehrsflaechen
DE2632794C2 (de) * 1976-07-21 1978-08-24 Hubert Weisser Kg, 7715 Braeunlingen Salzstreugerät mit Streugutbefeuchtungseinrichtung für ein Fahrzeug
DE2730256A1 (de) * 1977-07-05 1979-01-25 Franz Huebner Streumaschine zum austrag von streuguetern auf verkehrsflaechen
DE3544060A1 (de) * 1985-12-13 1987-06-19 Willy Kuepper Streuvorrichtung mit fluessigkeitszufuhr zum ausstreuen angefeuchteter granulate
DE3712452A1 (de) * 1986-07-11 1988-11-24 Pietsch Max Kg Gmbh & Co Streufahrzeug mit verteilereinrichtung fuer taustoffe
DE8901867U1 (de) * 1989-02-17 1989-04-06 Klenner, Günther, 8201 Riedering Kombistreuteller

Also Published As

Publication number Publication date
DE3924647C2 (fr) 1991-07-18
DE59000727D1 (de) 1993-02-18
DE3924647A1 (de) 1991-01-31
WO1991002122A1 (fr) 1991-02-21
EP0435979A1 (fr) 1991-07-10

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