EP2697435B1 - Method for filling and emptying a liquid tank of a spreader device for winter service vehicles, and spreader device - Google Patents

Method for filling and emptying a liquid tank of a spreader device for winter service vehicles, and spreader device Download PDF

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Publication number
EP2697435B1
EP2697435B1 EP12734916.5A EP12734916A EP2697435B1 EP 2697435 B1 EP2697435 B1 EP 2697435B1 EP 12734916 A EP12734916 A EP 12734916A EP 2697435 B1 EP2697435 B1 EP 2697435B1
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EP
European Patent Office
Prior art keywords
tank
liquid
container
tank container
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12734916.5A
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German (de)
French (fr)
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EP2697435A1 (en
Inventor
Rolf Isele
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Kuepper Weisser GmbH
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Kuepper Weisser GmbH
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Filing date
Publication date
Application filed by Kuepper Weisser GmbH filed Critical Kuepper Weisser GmbH
Priority to DK13177033.1T priority Critical patent/DK2682527T3/en
Priority to ES13177033.1T priority patent/ES2575162T3/en
Priority to EP13177033.1A priority patent/EP2682527B1/en
Publication of EP2697435A1 publication Critical patent/EP2697435A1/en
Application granted granted Critical
Publication of EP2697435B1 publication Critical patent/EP2697435B1/en
Priority to HRP20160627TT priority patent/HRP20160627T1/en
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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
    • E01H10/002—Roadside storage of gritting or solid thawing materials, e.g. grit or salt bins
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2483—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device the supplying means involving no pressure or aspiration, e.g. means involving gravity or capillarity
    • 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
    • E01C19/21—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 for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading ; for filling grooves and gritting the filling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes

Definitions

  • the invention relates to a method for filling and a method for emptying a liquid tank of a spreading device for winter maintenance vehicles and a suitably designed for carrying out these methods spreader for winter maintenance vehicles and equipped with such a spreader winter service vehicle as such.
  • a usable in the scattering tank tank bag can be provided.
  • the brine required for the pure brine dispersion is conveyed from the additional tanks in a conventional manner and the additional tanks are automatically refilled from time to time with brine from the scattering tank or the tank bag received therein.
  • a pump which pumps into the additional tanks via a hose projecting into the scattering container or tank bag.
  • a suction pump 51 as shown in Figures 17 and 18, or alternatively serve a submersible pump.
  • Object of the present invention is therefore to overcome this disadvantage of the prior art.
  • the inventive method for filling a liquid tank which as a first tank container, for example, the scattering container or the tank bag received therein and as one or more second sees Tank container such as the aforementioned additional tanks, before, that the first tank container with the second tank or containers via a liquid line is connected such that initially the first tank container with liquid, for example with brine, is filled to a moment from which the in the first tank container filled liquid begins to flow through the liquid line into the at least one second tank container, wherein the filling of the second tank container with liquid from the first tank container through the liquid line therethrough following this moment.
  • a liquid tank which as a first tank container, for example, the scattering container or the tank bag received therein and as one or more second sees Tank container such as the aforementioned additional tanks
  • the liquid line has a highest point between the two conduit openings at the respective ends of the liquid line.
  • This highest point is preferably at or above an upper portion of the first tank (main tank), so that the step of filling the second tank (s) does not begin until the first tank is completely or at least almost completely filled.
  • the filling of the second tank container (s) starts only after the liquid in the liquid line has reached the highest point, and thereafter the filling of the second tank container with liquid from the first tank container through the liquid pipe automatically proceeds by utilizing hydrostatic forces , as long as the line opening of the end of the liquid line projecting into the second tank container (auxiliary tank) is below the liquid level of the first tank container (main tank).
  • This possibility is not limited to the use of a tank bag as the first tank container, but may be used in consideration of certain constraints which will be explained later, e.g. the scattering container itself is used as the first tank container (main tank).
  • the (first) conduit opening of the liquid conduit is close to the bottom of the first tank container, so that the first tank container during emptying emptied as completely as possible.
  • the (second) conduit opening of the liquid conduit connected to or projecting into the second tank container (auxiliary tank) is located at a position below the (first) conduit opening of the opposite end of the fluid conduit connected to or projecting into the first tank vessel (main tank). so that the first tank container are emptied as deeply as possible when emptying the liquid tank.
  • the (second) conduit opening is therefore preferably located below the bottom of the first tank container.
  • the liquid line can be guided over an upper edge of the scattering container.
  • the highest point of the liquid line then lies above the scattering container or a tank bag received therein.
  • this offers the advantage that the maximum filling volume of the first tank container (scattering container or tank bag received therein) can easily be completely filled with liquid before the filling of the second tank container through the liquid line begins.
  • the problem is that in this case when using a tank bag as the first tank container, an overpressure must be built in the tank bag to force the liquid out of the tank bag over the highest point of the liquid line out through the liquid line.
  • the liquid is pumped into the first tank container with such a volume flow that the liquid not only spills over the highest point but completely fills the liquid line. Because only with a closed column of liquid in the liquid line, the goal is achieved that the liquid is automatically retightened due to hydrostatic forces of the first tank into the second tank container.
  • the first tank container is not formed by a tank bag but, for example, by the scattering container itself, the generation of an overpressure in the first tank container is not possible.
  • a suction pump can be provided on the liquid line with which the liquid is sucked once beyond the highest point of the liquid line out. Subsequently, the suction pump can be switched off and the further filling automatically runs off solely due to hydrostatic forces.
  • the overpressure problem can be avoided if the liquid line is not guided around the upper edge of the scattering container but in an upper area through the wall of the scattering container. Then, the filling of the second tank container begins when the first tank container is almost completely filled and continues automatically, as long as it is ensured that forms a closed column of liquid in the liquid line at the start of the self-filling process, as explained above.
  • the wall of the scattering container is relatively easily accessible even in the presence of a tank bag, so that the liquid line at this point can be easily passed through the wall of the scattering container to the tank bag or the tank bag at the appropriate location to an opening in the scattering container can be connected, at the opposite side then leading to the additional tank hose is connected.
  • the filling of the first tank can be stopped as soon as the second tank automatically fills due to the acting hydrostatic forces.
  • the first tank then empties as the second tank container fills. Therefore, it is preferable to continue to fill the first tank container while the second tank container automatically fills with liquid from the first tank container until both tank containers are completely filled.
  • vents are provided on the first and second tank containers, so that the air therein can escape to the extent that fills the corresponding tank container with liquid.
  • a level limiter can be provided in the second tank container or in the first tank container, depending on the chosen filling principle, which sends a stop signal to the filling apparatus when a predetermined filling level has been reached.
  • FIG. 1 Shown in FIG. 1 is an attachment spreader 1 as a construction on a loading area of a truck, which is not explicitly shown here.
  • a scattering container 3 On a welded support frame 2, a scattering container 3 is constructed, which has a funnel-shaped cross-section, so that collected in the scattering container Taustoffe collect on the conically converging bottom of the scattering container 3.
  • a screw conveyor at the bottom of the scattering container transports solid scattering substances, in particular road salt, out of the scattering container 3 to an outlet 4, through which the scattering substances in turn are forced into the downpipe 5 due to gravity a spreader 6 and can fall through the downpipe 5 on a spreading plate 7 of the spreader 6.
  • Two additional tanks 10 for liquid, in particular for a salt solution (brine), are provided in order to admix the liquid which has fallen through the downpipe 5 in a suitably metered quantity of liquid. This is done in a conventional manner via a suction line 15 using a suitably controlled pump 16.
  • the place of admixing does not necessarily have to be in the downpipe itself, but can for example take place only at the lower end of the downpipe 5 on the spreading plate 7.
  • Additional tanks 10 may be provided, for example, in front of the scattering container 3.
  • the additional tanks 10 can be made significantly smaller in size in favor of an increase in the content of the scattering container 3 than it is in FIG FIG. 1 is shown. If several additional tanks 10 are provided for mixing liquid detergents, they are preferably connected to one another via lines.
  • the functions pure brine spreading, dry salt scattering or wet salt scattering can be achieved with the pump 16 and suitable valves 11.2.
  • the pump 16 By means of the designed as a three-way cock valve 11.2 (for example ball valve), the pump 16 can be connected to the spray 17 or the downpipe 5 to switch between the pure brine and the Feuchtsalzstreuung. If dry salt is to be scattered, that is, without admixing brine from the additional tanks 10, either the pump 16 can be switched off or the three-way cock 11.2 can be pivoted so that the conduction path from the pump 16 to both the spraying device 17 and the scattering device 6 is interrupted. On the other hand, it is with the in FIG.
  • a liquid tank 40 is inserted into the scattering tank 3 and connected via a liquid line 50 to the auxiliary tanks 10.
  • the liquid tank 40 can be filled with brine via a filler neck 42.
  • a feedthrough 43 is provided, through which the liquid line 50 is led into the liquid tank 20 with a hose extension 50A.
  • the tube extension 50A extends to the bottom of the liquid tank 40.
  • the liquid tank 40 is formed by a tank bag 40A which is inserted into the scattering tank 3 as described.
  • the tank bag 40A need not necessarily be made of a flexible, collapsible material, it may as well be a rigid insert tank. However, it is preferable if the tank bag, as in DE 10 2010 029 142 A1 described, is flexible and collapsible, so that it is better storable.
  • the tank bag 40A fills only half of the scattering container 3. In the remaining other half, a second tank bag 40A or dry spreading material can be picked up, which is then conveyed under the tank bag 40A to the spreader 6. If a second tank bag 40A is provided, an overflow between the tank bags can be provided, which is arranged as far as possible for ease of use. To the overflow of the second tank bag then in turn joins a hose extension, which extends to the bottom of the second tank bag.
  • FIGS. 2 to 9 the principle of filling and emptying of the liquid tank is described below, which is composed here of the first tank container formed by the tank bag 40A and by two additional tanks 10 as a second tank container.
  • the illustrations are to be understood purely schematically.
  • FIG. 2 shows a first phase of the filling process of the tank 40A.
  • the additional tanks 10 are still completely empty.
  • the check valve 18 is closed.
  • the closing of the suction pipe 15 connected to the two auxiliary tanks 10 may also be effected solely by the pump 16 (FIG. FIG. 1 ) be ensured.
  • the tank bag 40A is not completely filled.
  • the pressure acting on the liquid corresponds to the ambient pressure po.
  • the arrow indicates that the tank bag 40A is further filled with liquid through the filler neck 42.
  • FIG. 3 the liquid level has risen so far that the vent valve 44 (see also FIG. 1 ) closes.
  • a float 45 in the vent valve 44 ensures that no liquid can escape from the tank bag 40A.
  • the pressure acting on the liquid in the tank bag 40A at this time still corresponds to the ambient pressure po.
  • the liquid level in the liquid line 50 has already risen above the tank bag 40A.
  • the pressure p acting on the liquid in the tank bag 40A is raised above the ambient pressure po.
  • the tank bag 40A inflates (not shown) as indicated by the arrows shown in the tank bag, and the liquid in the tank bag 40A is conveyed through the liquid line 50 via the highest point 50B of the tank Fluid line 50 pushed out. This moment is in FIG. 4 shown.
  • the volume flow flowing through the filler neck 42 is sufficiently large so that the liquid not only spills over the highest point 50B of the liquid line 50, but also completely fills and flows down the liquid line 50 as a closed liquid column.
  • FIG. 5 illustrates this principle.
  • the liquid level in the auxiliary tanks 10 increases in parallel as the liquid level in the tank bag 40 decreases. It is not necessary at this moment to continue to supply liquid through the filler neck 42 (however, this is advisable to keep the total filling time as short as possible).
  • FIG. 6 Fig. 14 shows the state in which the liquid levels in all the tank containers 40A and 10 have reached the same level. There is no further liquid flows through the liquid line 50. The liquid level of the additional tanks 10 has risen to the leading up vent pipes 30. At least now, the filling process is continued by further supply of liquid through the filler neck 42 in the tank bag 40A. The level of liquid in the vent tubes 30 continues to increase until the maximum fill volume is reached, as in FIG. 7 shown. Accordingly, the vent tubes 30 end above the highest fill level of the tank bag 40A.
  • the check valve 18 is opened or the pump 16 is operated accordingly. Liquid is then withdrawn from the auxiliary tanks 10 through the suction line 15, and to the same extent, liquid from the tank bag 40A flows through the liquid line 50 into the auxiliary tanks 10, as in FIG FIG. 8 shown. The liquid level drops in all Tank containers 40A and 10 evenly until it is in FIG. 9 has reached the lowest level shown, wherein the conduit opening of the projecting into the tank bag 40A tube extension 50A emerges from the liquid level. From this moment, the further emptying of the liquid tank takes place solely from the additional tanks 10.
  • the auxiliary tanks 10 may also be equipped with vent valves 31, as in FIG FIG. 1 shown.
  • This vent valve 31 closes similar to the vent valve 44 of the tank bag 40A automatically when a correspondingly high level is reached. This moment can be detected by measurement and serve as a signal to adjust the further filling of the tank bag 40 A, which, however, only makes sense if the filling of the tank bag 40 A is continued, while the additional tanks 10 with liquid passed through the liquid line 50 from the Fill tank bag 40A.
  • FIG. 10 shows an equivalent circuit diagram for the in FIG. 1 illustrated spreader.
  • Liquid is introduced into the tank bag 40A via a filler neck 42.
  • the tank bag 40A vented via the vent valve 44 and the liquid is supplied via the liquid line 50 and hose extension 50A of the connecting line 14 between the two additional tanks 10, through which the liquid then flows into the auxiliary tanks 10.
  • the two auxiliary tanks 10 are connected via vent pipes 30 to a common vent 30A which ends above the auxiliary tank 40A (not shown in the replacement diagram).
  • a separate level limiter 32 is connected to one of the two additional tanks 10 and signals at a predetermined level the end of the filling process.
  • the additional tanks 10 are coupled to a manifold 20 which supplies the liquid from the additional tanks 10 either the scattering device 6 or another distributor 21, with which the liquid can be assigned to several spray heads 17A, 17B, 17C.
  • FIG. 10 represents at the same time a second embodiment as a deviation of the first embodiment, which in FIG. 11 is shown again schematically. Accordingly, here leads the liquid line 50 in a connecting line 14 between the two additional tanks 10, which is different from the manifold 20 leading to the suction lines 19, is withdrawn through the liquid from the additional tanks 10.
  • FIG. 12 shows as a third embodiment, a further modification, which also already in connection with the replacement diagram according to FIG. 10 was explained.
  • the vent tubes 30 of the auxiliary tank 10 terminate in a common vent 30A, which in turn is a self-closing valve that closes when the liquid level in the entire liquid tank has reached the vent 30A. This can, as mentioned, be detected by measurement and serve as a signal for switching off the filling process.
  • the filler neck 42 is above the vent 30A, so that the filler neck 42 can be safely closed without liquid exiting the liquid tank.
  • FIG. 13 shows as a further modification, a fourth embodiment.
  • the uppermost point 50B of the liquid line 50 is located in an upper portion of the tank bag 40A immediately below the maximum fill level of the tank bag 40A.
  • the liquid therefore flows from the tank bag 40A into the liquid line 50 when the maximum level in the tank bag 40A is approximately reached without having to generate an overpressure in the tank bag 40A.
  • the liquid line 50 then continues through in the upper region of the scattering container 3 through a wall 3A of the scattering container 3.
  • Couplings 61 and 62 on the container wall 3A are provided to externally connect the liquid conduit 50 and internally the tube extension 50A thereto. This is also on the inside of the Litter container 3 relatively unproblematic, because this point of the litter box 3 is still easily accessible even in the presence of the tank bag 40A.
  • FIG. 14 shows as a further modification, a fifth embodiment.
  • the first tank container (main tank) is not formed by a tank bag used in the scattering container but by the scattering container 3 itself.
  • a sealing plate inserted into the hopper 3 plate 28 forms the bottom of the first tank.
  • the conveying device for conveying solid scattering substances runs in the event that the spreading container 3 at other times does not serve as a liquid tank but in a conventional manner as a container for receiving, for example, road salt.
  • the liquid line 50 is guided into the scattering container 3 via a passage 63 in the wall 3A of the scattering container 3 and protrudes with its hose extension 50A to the bottom of the scattering container 3.
  • the principle of filling and emptying corresponds to the above-described principle, in particular similar to the fourth embodiment according to FIG. 13 , If the liquid pressure during filling of the tank container is not sufficient to produce a closed water column in the liquid line 50 in order to ensure an independent subsequent flow of liquid from the scattering tank 3 into the additional tank 10, in addition eg a suction pump 52 and a check valve 53 be provided. First, the check valve 53 is closed and then the suction pump 52 in operation taken. Once the suction pump 52 has sucked liquid, the suction pump 52 can be turned off and then the check valve 53 are opened. Then, the liquid automatically flows through the liquid line 50 from the scattering tank 3 into the auxiliary tank 10. Other ways to start flowing through the liquid line 50 are also possible.
  • another tank can serve as the main tank or "first tank".
  • the principles described above, in particular the use of a connecting line 50 passing through a highest point, are equally applicable thereto.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Fertilizing (AREA)
  • Special Spraying Apparatus (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Befüllen und ein Verfahren zum Entleeren eines Flüssigkeitstanks eines Streustoffgeräts für Winterdienstfahrzeuge sowie ein für die Durchführung dieser Verfahren entsprechend eingerichtetes Streugerät für Winterdienstfahrzeuge und ein mit einem solchen Streugerät ausgerüstetes Winterdienstfahrzeug als solches.The invention relates to a method for filling and a method for emptying a liquid tank of a spreading device for winter maintenance vehicles and a suitably designed for carrying out these methods spreader for winter maintenance vehicles and equipped with such a spreader winter service vehicle as such.

Aus der FR 2 667 335 A ist ein Streugerät mit Tankbehältern bekannt, die über Röhre verbunden sind.From the FR 2 667 335 A is a spreader with tank containers known, which are connected by tube.

Aus der deutschen Offenlegungsschrift DE 10 2010 029 142 A1 ist ein Streugerät für Winterdienstfahrzeuge bekannt, welches drei verschiedene Streumethoden in sich vereint, nämlich Trockensalzstreuung, Feuchtsalzstreuung und reine Solestreuung. Normalerweise befindet sich die Sole für die Feuchtsalzstreuung und reine Solestreuung in einem Zusatztank, der beispielsweise seitlich des Streustoffbehälters, in dem das Streusalz aufbewahrt wird, montiert ist. Da die Zusatztanks zu klein sind, um eine Standard-Streustrecke von ca. 50 km mit reiner Sole zu streuen, wird in der DE 10 2010 029142 A1 vorgeschlagen, den Streustoffbehälter wahlweise als weiteren Tankbehälter zur Aufnahme von Sole zu nutzen. Die Zusatztanks bleiben erhalten für den Fall, dass Feuchtsalz gestreut werden soll und der Streustoffbehälter zur Aufnahme fester Taustoffe benötigt wird. Anstatt den Streustoffbehälter selbst als weiteren Tankbehälter zu verwenden, kann alternativ ein in den Streustoffbehälter einsetzbarer Tanksack vorgesehen werden. Die für die reine Solestreuung benötigte Sole wird dabei in herkömmlicher Weise aus den Zusatztanks gefördert und die Zusatztanks werden von Zeit zu Zeit mit Sole aus dem Streustoffbehälter oder dem darin aufgenommenen Tanksack automatisch nachgefüllt. Dazu dient eine Pumpe, die über einen in den Streustoffbehälter bzw. Tanksack hineinragenden Schlauch die darin aufgenommene Sole in die Zusatztanks pumpt. Als Pumpe kann eine Saugpumpe 51, wie in Figur 17 und 18 dargestellt, oder alternativ eine Tauchpumpe dienen.From the German patent application DE 10 2010 029 142 A1 is a spreader for winter maintenance vehicles known, which combines three different scattering methods, namely dry salt scattering, wet salt dispersion and pure brine scattering. Normally, the brine for the wet salt dispersion and pure brine scattering is in an additional tank, for example, the side of the scattering container in which the road salt is stored, is mounted. Since the additional tanks are too small to sprinkle a standard spreading distance of approx. 50 km with pure brine, in the DE 10 2010 029142 A1 proposed to use the scattering container either as another tank container for receiving brine. The additional tanks are retained in the event that wet salt is to be scattered and the scattering container is required to take solid Taustoffe. Instead of using the scattering container itself as another tank container, alternatively, a usable in the scattering tank tank bag can be provided. The brine required for the pure brine dispersion is conveyed from the additional tanks in a conventional manner and the additional tanks are automatically refilled from time to time with brine from the scattering tank or the tank bag received therein. This is done by a pump which pumps into the additional tanks via a hose projecting into the scattering container or tank bag. As a pump, a suction pump 51, as shown in Figures 17 and 18, or alternatively serve a submersible pump.

Der Einsatz der Pumpen zum automatischen Auffüllen der Zusatztanks hat sich allerdings als störanfällig erwiesen.However, the use of the pumps to automatically fill the additional tanks has proven to be prone to failure.

Aufgabe der vorliegenden Erfindung ist es daher, diesen Nachteil des Standes der Technik zu überwinden.Object of the present invention is therefore to overcome this disadvantage of the prior art.

Diese Aufgabe wird durch ein Verfahren zum Befüllen sowie ein Verfahren zum Entleeren eines Flüssigkeitstanks eines Winterdienststreugeräts sowie durch ein entsprechend angepasstes Streugerät mit den Merkmalen der unabhängigen Ansprüche gelöst. In davon abhängigen Ansprüchen sind vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung angegeben.This object is achieved by a method for filling and a method for emptying a liquid tank of a winter maintenance spreader and by a correspondingly adapted spreader with the features of the independent claims. In dependent claims advantageous developments and refinements of the invention are given.

Der Kern der Erfindung ist darin zu sehen, dass das automatische Nachfüllen der Zusatztanks mit Sole aus dem Streustoffbehälter oder dem darin eingesetzten Tanksack im Wesentlichen allein durch hydrostatische Kräfte erreicht wird. Mittels der erfindungsgemäßen Lösung ist es aber nicht nur möglich, die Zusatztanks im laufenden Betrieb nachzufüllen, sondern es ist gleichfalls möglich, das erstmalige Befüllen der Zusatztanks so mit dem Befüllen des Streustoffbehälters bzw. des darin aufgenommenen Tanksacks zu koppeln, dass dies in einem Schritt erfolgen kann. Die unterschiedlichen Tankbehälter brauchen somit nicht mehr getrennt befüllt zu werden, was eine deutliche Erleichterung und Zeitersparnis bedeutet.The essence of the invention is to be seen in the fact that the automatic refilling of the additional tanks with brine from the scattering container or the tank bag inserted therein is achieved essentially solely by hydrostatic forces. By means of the solution according to the invention, it is not only possible to replenish the additional tanks during operation, but it is also possible to couple the initial filling of the additional tanks with the filling of the scattering container or the bag taken therein, that this is done in one step can. The different tank containers thus need not be filled separately, which means a significant relief and time savings.

Dementsprechend sieht das erfindungsgemäße Verfahren zum Befüllen eines Flüssigkeitstanks, der als einen ersten Tankbehälter z.B. den Streustoffbehälter oder den darin aufgenommenen Tanksack und als einen oder mehrere zweite Tankbehälter z.B. die vorgenannten Zusatztanks umfasst, vor, dass der erste Tankbehälter mit dem oder den zweiten Tankbehältern über eine Flüssigkeitsleitung derart verbunden ist, dass zunächst der erste Tankbehälter mit Flüssigkeit, zum Beispiel mit Sole, bis zu einem Moment befüllt wird, ab dem die in den ersten Tankbehälter gefüllte Flüssigkeit durch die Flüssigkeitsleitung hindurch in den mindestens einen zweiten Tankbehälter zu fließen beginnt, wobei das Befüllen des oder der zweiten Tankbehälter mit Flüssigkeit aus dem ersten Tankbehälter durch die Flüssigkeitsleitung hindurch im Anschluss an diesen Moment erfolgt.Accordingly, the inventive method for filling a liquid tank, which as a first tank container, for example, the scattering container or the tank bag received therein and as one or more second sees Tank container such as the aforementioned additional tanks, before, that the first tank container with the second tank or containers via a liquid line is connected such that initially the first tank container with liquid, for example with brine, is filled to a moment from which the in the first tank container filled liquid begins to flow through the liquid line into the at least one second tank container, wherein the filling of the second tank container with liquid from the first tank container through the liquid line therethrough following this moment.

Dazu besitzt die Flüssigkeitsleitung einen höchsten Punkt zwischen den beiden Leitungsöffnungen an den jeweiligen Enden der Flüssigkeitsleitung. Dieser höchste Punkt liegt vorzugsweise auf Höhe eines oberen Bereichs des ersten Tankbehälters (Haupttank) oder darüber, so dass der Schritt des Befüllens des oder der zweiten Tankbehälter (Zusatztanks) erst beginnt, wenn der erste Tankbehälter vollständig oder zumindest nahezu vollständig gefüllt ist. Das Befüllen des oder der zweiten Tankbehälter beginnt nämlich erst, nachdem die Flüssigkeit in der Flüssigkeitsleitung den höchsten Punkt erreicht hat, und danach setzt sich das Befüllen des oder der zweiten Tankbehälter mit Flüssigkeit aus dem ersten Tankbehälter durch die Flüssigkeitsleitung hindurch unter Ausnutzung hydrostatischer Kräfte automatisch fort, nämlich solange wie die Leitungsöffnung des in den zweiten Tankbehälter (Zusatztank) ragenden Endes der Flüssigkeitsleitung unter dem Flüssigkeitspegel des ersten Tankbehälters (Haupttank) liegt. Diese Möglichkeit ist nicht auf die Verwendung eines Tanksacks als ersten Tankbehälter beschränkt sondern kann bei Beachtung gewisser Randbedingungen, die nachfolgend noch erläutert werden, auch eingesetzt werden, wenn z.B. der Streustoffbehälter selbst als erster Tankbehälter (Haupttank) genutzt wird.For this purpose, the liquid line has a highest point between the two conduit openings at the respective ends of the liquid line. This highest point is preferably at or above an upper portion of the first tank (main tank), so that the step of filling the second tank (s) does not begin until the first tank is completely or at least almost completely filled. Namely, the filling of the second tank container (s) starts only after the liquid in the liquid line has reached the highest point, and thereafter the filling of the second tank container with liquid from the first tank container through the liquid pipe automatically proceeds by utilizing hydrostatic forces , as long as the line opening of the end of the liquid line projecting into the second tank container (auxiliary tank) is below the liquid level of the first tank container (main tank). This possibility is not limited to the use of a tank bag as the first tank container, but may be used in consideration of certain constraints which will be explained later, e.g. the scattering container itself is used as the first tank container (main tank).

Vorzugsweise liegt die (erste) Leitungsöffnung der Flüssigkeitsleitung nahe am Grund des ersten Tankbehälters, damit sich der erste Tankbehälter beim Entleeren möglichst vollständig entleert. Aus demselben Grund liegt die (zweite) Leitungsöffnung des an den zweiten Tankbehälter (Zusatztank) angeschlossenen oder darin hineinragenden Endes der Flüssigkeitsleitung an einer Stelle unterhalb der (ersten) Leitungsöffnung des an den ersten Tankbehälter (Haupttank) angeschlossenen oder darin hineinragenden gegenüberliegenden Endes der Flüssigkeitsleitung, damit der erste Tankbehälter beim Entleeren des Flüssigkeitstanks möglichst tief entleert werden. Vorzugsweise liegt die (zweite) Leitungsöffnung daher unterhalb des Grundes des ersten Tankbehälters.Preferably, the (first) conduit opening of the liquid conduit is close to the bottom of the first tank container, so that the first tank container during emptying emptied as completely as possible. For the same reason, the (second) conduit opening of the liquid conduit connected to or projecting into the second tank container (auxiliary tank) is located at a position below the (first) conduit opening of the opposite end of the fluid conduit connected to or projecting into the first tank vessel (main tank). so that the first tank container are emptied as deeply as possible when emptying the liquid tank. The (second) conduit opening is therefore preferably located below the bottom of the first tank container.

Die Flüssigkeitsleitung kann über einen oberen Rand des Streustoffbehälters geführt werden. Der höchste Punkt der Flüssigkeitsleitung liegt dann oberhalb des Streustoffbehälters oder eines darin aufgenommenen Tanksacks. Dies bietet einerseits den Vorteil, dass das maximale Füllvolumen des ersten Tankbehälters (Streustoffbehälter bzw. darin aufgenommener Tanksack) problemlos vollständig mit Flüssigkeit gefüllt werden kann, bevor das Befüllen des zweiten Tankbehälters durch die Flüssigkeitsleitung hindurch beginnt. Problematisch ist allerdings, dass für diesen Fall bei der Verwendung eines Tanksacks als erstem Tankbehälter ein Überdruck in dem Tanksack aufgebaut werden muss, um die Flüssigkeit aus dem Tanksack heraus über den höchsten Punkt der Flüssigkeitsleitung hinaus durch die Flüssigkeitsleitung zu drängen. Wichtig dabei ist auch, dass die Flüssigkeit mit einem solchen Volumenstrom in den ersten Tankbehälter hinein gepumpt wird, dass die Flüssigkeit über den höchsten Punkt nicht nur hinüberschwappt sondern die Flüssigkeitsleitung vollständig füllt. Denn nur bei einer geschlossenen Flüssigkeitssäule in der Flüssigkeitsleitung wird das Ziel erreicht, dass die Flüssigkeit aufgrund hydrostatischer Kräfte automatisch von dem ersten Tankbehälter in den zweiten Tankbehälter nachgezogen wird.The liquid line can be guided over an upper edge of the scattering container. The highest point of the liquid line then lies above the scattering container or a tank bag received therein. On the one hand, this offers the advantage that the maximum filling volume of the first tank container (scattering container or tank bag received therein) can easily be completely filled with liquid before the filling of the second tank container through the liquid line begins. The problem, however, is that in this case when using a tank bag as the first tank container, an overpressure must be built in the tank bag to force the liquid out of the tank bag over the highest point of the liquid line out through the liquid line. It is also important that the liquid is pumped into the first tank container with such a volume flow that the liquid not only spills over the highest point but completely fills the liquid line. Because only with a closed column of liquid in the liquid line, the goal is achieved that the liquid is automatically retightened due to hydrostatic forces of the first tank into the second tank container.

Wenn dagegen der erste Tankbehälter nicht durch einen Tanksack sondern z.B. durch den Streustoffbehälter selbst gebildet wird, ist die Erzeugung eines Überdrucks im ersten Tankbehälter nicht möglich. Für diesen Fall kann beispielsweise eine Saugpumpe an der Flüssigkeitsleitung vorgesehen werden, mit der die Flüssigkeit einmalig über den höchsten Punkt der Flüssigkeitsleitung hinaus gesaugt wird. Anschließend kann die Saugpumpe abgeschaltet werden und der weitere Befüllvorgang läuft automatisch allein aufgrund hydrostatischer Kräfte ab. Die Überdruckproblematik lässt sich vermeiden, wenn die Flüssigkeitsleitung nicht um den oberen Rand des Streustoffbehälters herum sondern in einem oberen Bereich durch die Wandung des Streustoffbehälters hindurch geführt wird. Dann beginnt das Befüllen des zweiten Tankbehälters, wenn der erste Tankbehälter nahezu vollständig gefüllt ist und setzt sich automatisch fort, sofern sichergestellt ist, dass sich in der Flüssigkeitsleitung beim Anlaufen des selbständigen Befüllvorgangs eine geschlossene Flüssigkeitssäule bildet, wie zuvor erläutert.If, on the other hand, the first tank container is not formed by a tank bag but, for example, by the scattering container itself, the generation of an overpressure in the first tank container is not possible. For this case can For example, a suction pump can be provided on the liquid line with which the liquid is sucked once beyond the highest point of the liquid line out. Subsequently, the suction pump can be switched off and the further filling automatically runs off solely due to hydrostatic forces. The overpressure problem can be avoided if the liquid line is not guided around the upper edge of the scattering container but in an upper area through the wall of the scattering container. Then, the filling of the second tank container begins when the first tank container is almost completely filled and continues automatically, as long as it is ensured that forms a closed column of liquid in the liquid line at the start of the self-filling process, as explained above.

Im oberen Bereich des Streustoffbehälters ist die Wandung des Streustoffbehälters selbst bei Gegenwart eines Tanksacks relativ gut zugänglich, so dass die Flüssigkeitsleitung an dieser Stelle ohne weiteres durch die Wandung des Streustoffbehälters zum Tanksack geführt werden kann oder der Tanksack an der entsprechenden Stelle an eine Öffnung im Streustoffbehälter angeschlossen werden kann, an deren gegenüberliegender Seite dann ein zum Zusatztank führender Schlauch angeschlossen wird.In the upper region of the scattering container, the wall of the scattering container is relatively easily accessible even in the presence of a tank bag, so that the liquid line at this point can be easily passed through the wall of the scattering container to the tank bag or the tank bag at the appropriate location to an opening in the scattering container can be connected, at the opposite side then leading to the additional tank hose is connected.

Das Befüllen des ersten Tankbehälters kann beendet werden, sobald sich der zweite Tankbehälter automatisch aufgrund der wirkenden hydrostatischen Kräfte füllt. Der erste Tankbehälter leert sich dann in dem Maße, wie sich der zweite Tankbehälter füllt. Daher ist es bevorzugt, den ersten Tankbehälter weiter zu befüllen, während sich der zweite Tankbehälter automatisch mit Flüssigkeit aus dem ersten Tankbehälter füllt, bis beide Tankbehälter vollständig gefüllt sind.The filling of the first tank can be stopped as soon as the second tank automatically fills due to the acting hydrostatic forces. The first tank then empties as the second tank container fills. Therefore, it is preferable to continue to fill the first tank container while the second tank container automatically fills with liquid from the first tank container until both tank containers are completely filled.

Wenn man im späteren Betrieb des Streugeräts den Flüssigkeitstank entleert, indem Flüssigkeit aus den zweiten Tankbehältern (Zusatztanks) abgezweigt wird, so sinkt zunächst der Flüssigkeitspegel in dem ersten Flüssigkeitstank (Haupttank, das heißt Streustoffbehälter oder Tanksack), bis dessen Flüssigkeitspegel bis auf die Höhe des höchsten zweiten Tankbehälters (Zusatztank) gesunken ist. Anschließend sinken die Flüssigkeitspegel in beiden Tankbehältern in gleichem Maße, bis die (erste) Leitungsöffnung in dem ersten Tankbehälter über den Flüssigkeitspegel ragt. In diesem Moment reißt die Flüssigkeitssäule in der Flüssigkeitsleitung ab. Wenn der Durchmesser der Flüssigkeitsleitung klein und die Kapillarkräfte ausreichend groß sind, wird die in der Flüssigkeitsleitung befindliche Flüssigkeitssäule beim weiteren Entleeren des zweiten Tankbehälters nachgezogen. Dieser Effekt ist jedermann in Zusammenhang mit Strohhalmen geläufig. Daher kann es sinnvoll sein, die Flüssigkeitsleitung aus einem Bündel von Leitungen mit ausreichend kleinem Querschnitt zu bilden, um diesen Effekt zu begünstigen.If you empty the liquid tank in later operation of the spreader by liquid is diverted from the second tank containers (additional tanks), so first decreases the liquid level in the first liquid tank (main tank, ie Litter container or tank bag) until its liquid level has dropped to the level of the highest second tank (additional tank). Subsequently, the liquid levels in both tank containers decrease to the same extent until the (first) line opening in the first tank container protrudes above the liquid level. At this moment, the liquid column in the liquid line breaks off. If the diameter of the liquid line is small and the capillary forces are sufficiently large, the liquid column located in the liquid line is retightened as the second tank container is further emptied. This effect is familiar to anyone in the context of straws. Therefore, it may be useful to form the liquid line from a bundle of lines of sufficiently small cross-section to promote this effect.

Vorzugsweise sind Entlüftungsöffnungen an den ersten und zweiten Tankbehältern vorgesehen, so dass die darin befindliche Luft in dem Maße entweichen kann, wie sich der entsprechende Tankbehälter mit Flüssigkeit füllt. Desweiteren kann ein Füllstandsbegrenzer im zweiten Tankbehälter oder im ersten Tankbehälter, je nach dem gewählten Befüllungsprinzip, vorgesehen werden, der an die Befüllungsapparatur ein Stoppsignal sendet, wenn ein vorgegebener Füllstand erreicht ist.Preferably, vents are provided on the first and second tank containers, so that the air therein can escape to the extent that fills the corresponding tank container with liquid. Furthermore, a level limiter can be provided in the second tank container or in the first tank container, depending on the chosen filling principle, which sends a stop signal to the filling apparatus when a predetermined filling level has been reached.

Nachfolgend wird die Erfindung beispielhaft anhand der begleitenden Zeichnungen beschrieben. Darin zeigen:

Figur 1
ein isoliertes Streugerät gemäß einem ersten Ausführungsbeispiel in perspektivischer Ansicht,
Figuren 2 bis 9
verschiedene Zustände beim Befüllen und Entleeren des Flüssigkeitstanks des in Figur 1 dargestellten Streugeräts schematisch im Querschnitt,
Figur 10
ein Ersatzschaubild für das Streugerät gemäß Figuren 1 bis 9,
Figur 11
einen schematischen Querschnitt durch ein Streugerät gemäß einem zweiten Ausführungsbeispiel,
Figur 12
einen schematischen Querschnitt durch ein Streugerät gemäß einem dritten Ausführungsbeispiel,
Figur 13
einen schematischen Querschnitt durch ein Streugerät gemäß einem vierten Ausführungsbeispiel,
Figur 14
einen schematischen Querschnitt durch ein Streugerät gemäß einem fünften Ausführungsbeispiel,
Figur 15
ein Streugerät gemäß dem Stand der Technik mit einem im Streustoffbehälter aufgenommenen Tanksack und
Figur 16
das Streugerät gemäß dem Stand der Technik aus Figur 15 ohne den Tanksack.
The invention will now be described by way of example with reference to the accompanying drawings. Show:
FIG. 1
an insulated spreader according to a first embodiment in perspective view,
FIGS. 2 to 9
different states when filling and emptying the liquid tank of the FIG. 1 shown spreader schematically in cross section,
FIG. 10
a replacement diagram for the spreader according to FIGS. 1 to 9 .
FIG. 11
a schematic cross section through a spreader according to a second embodiment,
FIG. 12
a schematic cross section through a spreader according to a third embodiment,
FIG. 13
a schematic cross section through a spreader according to a fourth embodiment,
FIG. 14
a schematic cross section through a spreader according to a fifth embodiment,
FIG. 15
a spreader according to the prior art with a received in the hopper tank and tank
FIG. 16
the spreader according to the prior art FIG. 15 without the tank bag.

Dargestellt in Figur 1 ist ein Aufsatz-Streugerät 1 als Aufbau auf eine Ladefläche eines LKWs, der hier nicht explizit dargestellt ist. Auf einen geschweißten Trägerrahmen 2 ist ein Streustoffbehälter 3 aufgebaut, der einen trichterförmigen Querschnitt besitzt, so dass sich in dem Streustoffbehälter aufgenommene Taustoffe am konisch zusammenlaufenden Grund des Streustoffbehälters 3 sammeln. Eine Förderschnecke am Grund des Streustoffbehälters transportiert feste Streustoffe, insbesondere Streusalz, aus dem Streustoffbehälter 3 hinaus zu einem Auslass 4, durch den hindurch die Streustoffe wiederum schwerkraftbedingt in das Fallrohr 5 einer Streueinrichtung 6 und durch das Fallrohr 5 hindurch auf einen Streuteller 7 der Streueinrichtung 6 fallen können. Zwei Zusatztanks 10 für Flüssigkeit, insbesondere für eine Salzlösung (Sole), sind vorgesehen, um den durch das Fallrohr 5 hindurchfallenden trockenen Streustoffen in geeignet dosierter Menge Flüssigkeit zuzumischen. Dies erfolgt in an sich bekannter Weise über eine Saugleitung 15 unter Verwendung einer entsprechend angesteuerten Pumpe 16. Der Ort der Zumischung muss nicht notwendiger Weise im Fallrohr selbst liegen, sondern kann beispielsweise auch erst am unteren Ende des Fallrohrs 5 auf dem Streuteller 7 erfolgen.Shown in FIG. 1 is an attachment spreader 1 as a construction on a loading area of a truck, which is not explicitly shown here. On a welded support frame 2, a scattering container 3 is constructed, which has a funnel-shaped cross-section, so that collected in the scattering container Taustoffe collect on the conically converging bottom of the scattering container 3. A screw conveyor at the bottom of the scattering container transports solid scattering substances, in particular road salt, out of the scattering container 3 to an outlet 4, through which the scattering substances in turn are forced into the downpipe 5 due to gravity a spreader 6 and can fall through the downpipe 5 on a spreading plate 7 of the spreader 6. Two additional tanks 10 for liquid, in particular for a salt solution (brine), are provided in order to admix the liquid which has fallen through the downpipe 5 in a suitably metered quantity of liquid. This is done in a conventional manner via a suction line 15 using a suitably controlled pump 16. The place of admixing does not necessarily have to be in the downpipe itself, but can for example take place only at the lower end of the downpipe 5 on the spreading plate 7.

Es können weitere Zusatztanks 10 beispielsweise vor dem Streustoffbehälter 3 vorgesehen sein. Insbesondere können die Zusatztanks 10 zugunsten einer Vergrößerung des Inhalts des Streustoffbehälters 3 deutlich kleiner ausgeführt sein, als es in Figur 1 dargestellt ist. Falls mehrere Zusatztanks 10 zum Zumischen von flüssigen Taustoffen vorgesehen sind, so sind sie vorzugsweise über Leitungen miteinander verbunden.Additional tanks 10 may be provided, for example, in front of the scattering container 3. In particular, the additional tanks 10 can be made significantly smaller in size in favor of an increase in the content of the scattering container 3 than it is in FIG FIG. 1 is shown. If several additional tanks 10 are provided for mixing liquid detergents, they are preferably connected to one another via lines.

Die Funktionen reine Solestreuung, Trockensalzstreuung oder Feuchtsalzstreuung lassen sich mit der Pumpe 16 und geeigneten Ventilen 11.2 erreichen. Mittels des als Dreiwegehahn ausgebildeten Ventils 11.2 (zum Beispiel Kugelhahn) kann die Pumpe 16 mit der Sprüheinrichtung 17 oder mit dem Fallrohr 5 verbunden werden, um zwischen der reinen Solestreuung und der Feuchtsalzstreuung umzuschalten. Falls Trockensalz gestreut werden soll, also ohne Zumischung von Sole aus den Zusatztanks 10, kann entweder die Pumpe 16 abgeschaltet oder der Dreiwegehahn 11.2 so verschwenkt werden, dass der Leitungsweg von der Pumpe 16 sowohl zur Sprüheinrichtung 17 als auch zur Streueinrichtung 6 unterbrochen ist. Andererseits ist es mit der in Figur 1 dargestellten Stellung des Dreiwegehahns 11.2 auch möglich, sowohl Trockensalz mittels der Streueinrichtung 6 als auch reine Sole mittels der Sprüheinrichtung 17 zu streuen. Durch geeignete Abwandlung des Systems, beispielsweise durch andere oder zusätzliche Wegeventile und/oder zusätzliche Leitungen und/oder Leitungsverzweigungen und/oder durch ein oder mehrere weitere Pumpen kann auch gewährleistet werden, gleichzeitig reine Sole über die Sprüheinrichtung 17 sowie Feuchtsalz über die Streueinrichtung 6 zu streuen.The functions pure brine spreading, dry salt scattering or wet salt scattering can be achieved with the pump 16 and suitable valves 11.2. By means of the designed as a three-way cock valve 11.2 (for example ball valve), the pump 16 can be connected to the spray 17 or the downpipe 5 to switch between the pure brine and the Feuchtsalzstreuung. If dry salt is to be scattered, that is, without admixing brine from the additional tanks 10, either the pump 16 can be switched off or the three-way cock 11.2 can be pivoted so that the conduction path from the pump 16 to both the spraying device 17 and the scattering device 6 is interrupted. On the other hand, it is with the in FIG. 1 illustrated position of the three-way valve 11.2 also possible to disperse both dry salt by means of the spreader 6 and pure brine by means of the spray 17. By suitable modification of the system, for example by other or additional directional valves and / or additional lines and / or line branches and / or by one or more Additional pumps can also be guaranteed to scatter at the same time pure brine on the spray 17 and moist salt on the spreader 6.

Um nun die Soleaufnahmekapazität des Streugeräts 1 zu erhöhen, ist in dem Streustoffbehälter 3 ein Flüssigkeitstank 40 eingesetzt und über eine Flüssigkeitsleitung 50 mit den Zusatztanks 10 verbunden. Der Flüssigkeitstank 40 kann über einen Einfüllstutzen 42 mit Sole befüllt werden.In order now to increase the brine absorption capacity of the spreader 1, a liquid tank 40 is inserted into the scattering tank 3 and connected via a liquid line 50 to the auxiliary tanks 10. The liquid tank 40 can be filled with brine via a filler neck 42.

Zusätzlich zu dem Einfüllstutzen 42 ist ein Durchführstutzen 43 vorgesehen, durch den hindurch die Flüssigkeitsleitung 50 mit einer Schlauchverlängerung 50A in den Flüssigkeitstank 20 hineingeführt wird. Die Schlauchverlängerung 50A reicht bis zum Grund des Flüssigkeitstanks 40. So kann der Flüssigkeitstank 40 durch die Flüssigkeitsleitung 50 hindurch vollständig entleert werden und den Zusatztanks 10, das heißt im konkreten Ausführungsbeispiel gemäß Figur 1 der die beiden Zusatztanks 10 verbindenden Saugleitung 15, zugeleitet werden.In addition to the filler neck 42, a feedthrough 43 is provided, through which the liquid line 50 is led into the liquid tank 20 with a hose extension 50A. The tube extension 50A extends to the bottom of the liquid tank 40. Thus, the liquid tank 40 can be completely emptied through the liquid line 50 and the additional tanks 10, that is, in the concrete embodiment according to FIG. 1 the two additional tanks 10 connecting suction line 15, are fed.

Im Ausführungsbeispiel gemäß Figur 1 wird der Flüssigkeitstank 40 durch einen Tanksack 40A gebildet, der - wie beschrieben - in den Streustoffbehälter 3 eingesetzt ist. Für die Zwecke der vorliegenden Erfindung muss der Tanksack 40A nicht unbedingt aus einem flexiblen, zusammenlegbaren Material bestehen, er kann genauso gut als steifer Einsatztank ausgebildet sein. Jedoch ist es bevorzugt, wenn der Tanksack, wie in DE 10 2010 029 142 A1 beschrieben, flexibel und zusammenlegbar ist, so dass er besser lagerbar ist.In the embodiment according to FIG. 1 For example, the liquid tank 40 is formed by a tank bag 40A which is inserted into the scattering tank 3 as described. For the purposes of the present invention, the tank bag 40A need not necessarily be made of a flexible, collapsible material, it may as well be a rigid insert tank. However, it is preferable if the tank bag, as in DE 10 2010 029 142 A1 described, is flexible and collapsible, so that it is better storable.

Der Tanksack 40A füllt nur die Hälfte des Streustoffbehälters 3 aus. In der verbleibenden anderen Hälfte kann ein zweiter Tanksack 40A oder aber trockener Streustoff aufgenommen werden, der dann unter dem Tanksack 40A hindurch zur Streueinrichtung 6 gefördert wird. Sofern ein zweiter Tanksack 40A vorgesehen wird, kann ein Überlauf zwischen den Tanksäcken vorgesehen werden, der zur einfacheren Bedienbarkeit möglichst weit oben angeordnet ist. An den Überlauf des zweiten Tanksacks schließt sich dann wiederum eine Schlauchverlängerung an, die zum Grund des zweiten Tanksacks reicht.The tank bag 40A fills only half of the scattering container 3. In the remaining other half, a second tank bag 40A or dry spreading material can be picked up, which is then conveyed under the tank bag 40A to the spreader 6. If a second tank bag 40A is provided, an overflow between the tank bags can be provided, which is arranged as far as possible for ease of use. To the overflow of the second tank bag then in turn joins a hose extension, which extends to the bottom of the second tank bag.

Anhand der Figuren 2 bis 9 wird nachfolgend das Prinzip des Befüllens und Entleerens des Flüssigkeitstanks beschrieben, der sich hier aus dem durch den Tanksack 40A gebildeten ersten Tankbehälter und durch zwei Zusatztanks 10 als zweite Tankbehälter zusammensetzt. Die Darstellungen sind rein schematisch zu verstehen.Based on FIGS. 2 to 9 the principle of filling and emptying of the liquid tank is described below, which is composed here of the first tank container formed by the tank bag 40A and by two additional tanks 10 as a second tank container. The illustrations are to be understood purely schematically.

Figur 2 zeigt eine erste Phase des Befüllvorgangs des Tankbehälters 40A. Zu diesem Moment sind die Zusatztanks 10 noch vollständig leer. Das Sperrventil 18 ist geschlossen. Anstelle des Sperrventils 18 kann das Verschließen der an die beiden Zusatztanks 10 angeschlossenen Saugleitung 15 auch allein durch die Pumpe 16 (Figur 1) sichergestellt werden. Gemäß dem in Figur 2 dargestellten Flüssigkeitspegel ist der Tanksack 40A noch nicht vollständig gefüllt. Der auf die Flüssigkeit wirkende Druck entspricht dem Umgebungsdruck po. Der Pfeil zeigt an, dass der Tanksack 40A durch den Einfüllstutzen 42 hindurch weiter mit Flüssigkeit befüllt wird. FIG. 2 shows a first phase of the filling process of the tank 40A. At this moment, the additional tanks 10 are still completely empty. The check valve 18 is closed. Instead of the check valve 18, the closing of the suction pipe 15 connected to the two auxiliary tanks 10 may also be effected solely by the pump 16 (FIG. FIG. 1 ) be ensured. According to the in FIG. 2 shown liquid level, the tank bag 40A is not completely filled. The pressure acting on the liquid corresponds to the ambient pressure po. The arrow indicates that the tank bag 40A is further filled with liquid through the filler neck 42.

In Figur 3 ist der Flüssigkeitspegel soweit gestiegen, dass das Entlüftungsventil 44 (vgl. auch Figur 1) schließt. Ein Schwimmer 45 im Entlüftungsventil 44 stellt sicher, dass keine Flüssigkeit aus dem Tanksack 40A austreten kann. Der auf die Flüssigkeit in dem Tanksack 40A wirkende Druck entspricht zu diesem Zeitpunkt immer noch dem Umgebungsdruck po. Der Flüssigkeitspegel ist in der Flüssigkeitsleitung 50 bereits über den Tanksack 40A gestiegen.In FIG. 3 the liquid level has risen so far that the vent valve 44 (see also FIG. 1 ) closes. A float 45 in the vent valve 44 ensures that no liquid can escape from the tank bag 40A. The pressure acting on the liquid in the tank bag 40A at this time still corresponds to the ambient pressure po. The liquid level in the liquid line 50 has already risen above the tank bag 40A.

Beim weiteren Füllen des Tanksacks 40A (Figur 4) wird der auf die in dem Tanksack 40A befindliche Flüssigkeit wirkende Druck p über den Umgebungsdruck po erhöht. Der Tanksack 40A bläht sich auf (nicht gezeigt), wie durch die im Tanksack dargestellten Pfeile angedeutet wird, und die im Tanksack 40A befindliche Flüssigkeit wird durch die Flüssigkeitsleitung 50 über den höchsten Punkt 50B der Flüssigkeitsleitung 50 hinaus gedrängt. Dieser Moment ist in Figur 4 dargestellt. Der durch den Einfüllstutzen 42 strömende Volumenstrom ist ausreichend groß, damit die Flüssigkeit über den höchsten Punkt 50B der Flüssigkeitsleitung 50 nicht nur hinüberschwappt, sondern als geschlossene Flüssigkeitssäule die Flüssigkeitsleitung 50 vollständig ausfüllt und hinabströmt.Upon further filling of the tank bag 40A (FIG. FIG. 4 ), the pressure p acting on the liquid in the tank bag 40A is raised above the ambient pressure po. The tank bag 40A inflates (not shown) as indicated by the arrows shown in the tank bag, and the liquid in the tank bag 40A is conveyed through the liquid line 50 via the highest point 50B of the tank Fluid line 50 pushed out. This moment is in FIG. 4 shown. The volume flow flowing through the filler neck 42 is sufficiently large so that the liquid not only spills over the highest point 50B of the liquid line 50, but also completely fills and flows down the liquid line 50 as a closed liquid column.

Sobald die Flüssigkeitssäule den tiefsten Punkt des Tanksacks 40A unterschritten hat, fließt automatisch Flüssigkeit aus dem Tanksack 40A durch die Flüssigkeitsleitung 50 in den rechten Zusatztank 10 nach und über die Verbindungsleitung 15 auch in den linken Zusatztank 10 hinein. Figur 5 veranschaulicht dieses Prinzip. Das Flüssigkeitsniveau in den Zusatztanks 10 steigt parallel in dem Maße, wie das Flüssigkeitsniveau im Tanksack 40 sinkt. Es ist in diesem Moment nicht notwendig, weiter Flüssigkeit durch den Einfüllstutzen 42 zuzuführen (jedoch ist dies ratsam, um die Gesamtbefüllungsdauer möglichst kurz zu halten).As soon as the liquid column has fallen below the lowest point of the tank bag 40A, liquid automatically flows from the tank bag 40A through the liquid line 50 into the right auxiliary tank 10 and also into the left auxiliary tank 10 via the connecting line 15. FIG. 5 illustrates this principle. The liquid level in the auxiliary tanks 10 increases in parallel as the liquid level in the tank bag 40 decreases. It is not necessary at this moment to continue to supply liquid through the filler neck 42 (however, this is advisable to keep the total filling time as short as possible).

Figur 6 zeigt den Zustand, in dem die Flüssigkeitsniveaus in allen Tankbehältern 40A und 10 denselben Pegel erreicht haben. Es strömt keine weitere Flüssigkeit durch die Flüssigkeitsleitung 50. Der Flüssigkeitspegel der Zusatztanks 10 ist bis in die nach oben führenden Entlüftungsrohre 30 angestiegen. Spätestens jetzt wird der Befüllvorgang durch weiteres Zuführen von Flüssigkeit durch den Einfüllstutzen 42 in den Tanksack 40A fortgeführt. Der Flüssigkeitspegel in den Entlüftungsrohren 30 steigt weiter an, bis das maximale Füllvolumen erreicht ist, wie in Figur 7 dargestellt. Dementsprechend enden die Entlüftungsrohre 30 oberhalb des höchsten Füllniveaus des Tanksacks 40A. FIG. 6 Fig. 14 shows the state in which the liquid levels in all the tank containers 40A and 10 have reached the same level. There is no further liquid flows through the liquid line 50. The liquid level of the additional tanks 10 has risen to the leading up vent pipes 30. At least now, the filling process is continued by further supply of liquid through the filler neck 42 in the tank bag 40A. The level of liquid in the vent tubes 30 continues to increase until the maximum fill volume is reached, as in FIG FIG. 7 shown. Accordingly, the vent tubes 30 end above the highest fill level of the tank bag 40A.

Zum Entleeren des Flüssigkeitstanks wird das Sperrventil 18 geöffnet oder die Pumpe 16 entsprechend betrieben. Flüssigkeit wird dann durch die Saugleitung 15 hindurch aus den Zusatztanks 10 entnommen, und in gleichem Maße fließt Flüssigkeit aus dem Tanksack 40A durch die Flüssigkeitsleitung 50 hindurch in die Zusatztanks 10 nach, wie in Figur 8 dargestellt. Der Flüssigkeitspegel sinkt in allen Tankbehältern 40A und 10 gleichmäßig, bis er das in Figur 9 gezeigte unterste Niveau erreicht hat, bei dem die Leitungsöffnung der in dem Tanksack 40A hineinragenden Schlauchverlängerung 50A aus dem Flüssigkeitspegel auftaucht. Ab diesem Moment erfolgt die weitere Entleerung des Flüssigkeitstanks allein aus den Zusatztanks 10 heraus.To empty the liquid tank, the check valve 18 is opened or the pump 16 is operated accordingly. Liquid is then withdrawn from the auxiliary tanks 10 through the suction line 15, and to the same extent, liquid from the tank bag 40A flows through the liquid line 50 into the auxiliary tanks 10, as in FIG FIG. 8 shown. The liquid level drops in all Tank containers 40A and 10 evenly until it is in FIG. 9 has reached the lowest level shown, wherein the conduit opening of the projecting into the tank bag 40A tube extension 50A emerges from the liquid level. From this moment, the further emptying of the liquid tank takes place solely from the additional tanks 10.

Anstelle der Entlüftungsrohre 30 können die Zusatztanks 10 auch mit Entlüftungsventilen 31 ausgestattet sein, wie in Figur 1 dargestellt. Dieses Entlüftungsventil 31 schließt ähnlich wie das Entlüftungsventil 44 des Tanksacks 40A automatisch, wenn ein entsprechend hoher Füllstand erreicht ist. Dieser Moment kann messtechnisch erfasst werden und als Signal dafür dienen, das weitere Befüllen des Tanksacks 40A einzustellen, was allerdings nur dann sinnvoll ist, wenn das Befüllen des Tanksacks 40A fortgesetzt wird, während sich die Zusatztanks 10 mit durch die Flüssigkeitsleitung 50 geleitete Flüssigkeit aus dem Tanksack 40A füllen.Instead of the vent tubes 30, the auxiliary tanks 10 may also be equipped with vent valves 31, as in FIG FIG. 1 shown. This vent valve 31 closes similar to the vent valve 44 of the tank bag 40A automatically when a correspondingly high level is reached. This moment can be detected by measurement and serve as a signal to adjust the further filling of the tank bag 40 A, which, however, only makes sense if the filling of the tank bag 40 A is continued, while the additional tanks 10 with liquid passed through the liquid line 50 from the Fill tank bag 40A.

Figur 10 zeigt ein Ersatzschaltbild für das in Figur 1 dargestellte Streugerät. Über einen Einfüllstutzen 42 wird Flüssigkeit in den Tanksack 40A geleitet. Der Tanksack 40A entlüftet über das Entlüftungsventil 44 und die Flüssigkeit wird über die Flüssigkeitsleitung 50 und Schlauchverlängerung 50A der Verbindungsleitung 14 zwischen den beiden Zusatztanks 10 zugeführt, über die die Flüssigkeit dann in die Zusatztanks 10 strömt. Die beiden Zusatztanks 10 sind über Entlüftungsrohre 30 an eine gemeinsame Entlüftung 30A angeschlossen, die oberhalb des Zusatztanks 40A endet (im Ersatzschaubild nicht dargestellt). Ein separater Füllstandsbegrenzer 32 ist an einen der beiden Zusatztanks 10 angeschlossen und signalisiert bei einem vorgegebenen Füllstand das Ende des Befüllvorgangs. FIG. 10 shows an equivalent circuit diagram for the in FIG. 1 illustrated spreader. Liquid is introduced into the tank bag 40A via a filler neck 42. The tank bag 40A vented via the vent valve 44 and the liquid is supplied via the liquid line 50 and hose extension 50A of the connecting line 14 between the two additional tanks 10, through which the liquid then flows into the auxiliary tanks 10. The two auxiliary tanks 10 are connected via vent pipes 30 to a common vent 30A which ends above the auxiliary tank 40A (not shown in the replacement diagram). A separate level limiter 32 is connected to one of the two additional tanks 10 and signals at a predetermined level the end of the filling process.

Über Leitungen 19 sind die Zusatztanks 10 an einen Verteiler 20 gekoppelt, der die Flüssigkeit aus den Zusatztanks 10 wahlweise der Streueinrichtung 6 oder einem weiteren Verteiler 21 zuführt, mit dem die Flüssigkeit mehreren Sprühköpfen 17A, 17B, 17C zugeteilt werden kann.Via lines 19, the additional tanks 10 are coupled to a manifold 20 which supplies the liquid from the additional tanks 10 either the scattering device 6 or another distributor 21, with which the liquid can be assigned to several spray heads 17A, 17B, 17C.

Figur 10 stellt damit gleichzeitig ein zweites Ausführungsbeispiel als Abweichung des ersten Ausführungsbeispiels dar, welches in Figur 11 nochmal schematisch wiedergegeben ist. Demnach führt hier die Flüssigkeitsleitung 50 in eine Verbindungsleitung 14 zwischen den beiden Zusatztanks 10, die verschieden ist von den zum Verteiler 20 führenden Saugleitungen 19, über die Flüssigkeit aus den Zusatztanks 10 abgezogen wird. FIG. 10 represents at the same time a second embodiment as a deviation of the first embodiment, which in FIG. 11 is shown again schematically. Accordingly, here leads the liquid line 50 in a connecting line 14 between the two additional tanks 10, which is different from the manifold 20 leading to the suction lines 19, is withdrawn through the liquid from the additional tanks 10.

Figur 12 zeigt als drittes Ausführungsbeispiel eine weitere Abwandlung, die ebenfalls bereits im Zusammenhang mit dem Ersatzschaubild gemäß Figur 10 erläutert wurde. Dementsprechend enden die Entlüftungsrohre 30 des Zusatztanks 10 in einer gemeinsamen Entlüftung 30A, die wiederum als selbstschließendes Ventil ausgebildet ist, das dann schließt, wenn der Flüssigkeitspegel im gesamten Flüssigkeitstank die Entlüftung 30A erreicht hat. Dies kann, wie erwähnt, messtechnisch erfasst werden und als Signal zum Abschalten des Befüllvorgangs dienen. Dementsprechend liegt bei diesem dritten Ausführungsbeispiel der Einfüllstutzen 42 oberhalb der Entlüftung 30A, damit der Einfüllstutzen 42 gefahrlos verschlossen werden kann, ohne dass dabei Flüssigkeit aus dem Flüssigkeitstank austritt. FIG. 12 shows as a third embodiment, a further modification, which also already in connection with the replacement diagram according to FIG. 10 was explained. Accordingly, the vent tubes 30 of the auxiliary tank 10 terminate in a common vent 30A, which in turn is a self-closing valve that closes when the liquid level in the entire liquid tank has reached the vent 30A. This can, as mentioned, be detected by measurement and serve as a signal for switching off the filling process. Accordingly, in this third embodiment, the filler neck 42 is above the vent 30A, so that the filler neck 42 can be safely closed without liquid exiting the liquid tank.

Figur 13 zeigt als weitere Abwandlung ein viertes Ausführungsbeispiel. Hier liegt der oberste Punkt 50B der Flüssigkeitsleitung 50 in einem oberen Bereich des Tanksacks 40A unmittelbar unterhalb der maximalen Füllhöhe des Tanksacks 40A. Die Flüssigkeit strömt daher aus dem Tanksack 40A in die Flüssigkeitsleitung 50, wenn der maximale Füllstand im Tanksack 40A in etwa erreicht ist, ohne dass ein Überdruck im Tanksack 40A erzeugt werden muss. Die Flüssigkeitsleitung 50 führt dann weiter im oberen Bereich des Streustoffbehälters 3 durch eine Wandung 3A des Streustoffbehälters 3 hindurch. Kupplungen 61 und 62 an der Behälterwand 3A sind vorgesehen, um von außen die Flüssigkeitsleitung 50 und von innen die Schlauchverlängerung 50A daran anzuschließen. Dies ist auch auf der Innenseite des Streustoffbehälters 3 relativ unproblematisch, weil diese Stelle des Streustoffbehälters 3 selbst bei Gegenwart des Tanksacks 40A noch gut zugänglich ist. FIG. 13 shows as a further modification, a fourth embodiment. Here, the uppermost point 50B of the liquid line 50 is located in an upper portion of the tank bag 40A immediately below the maximum fill level of the tank bag 40A. The liquid therefore flows from the tank bag 40A into the liquid line 50 when the maximum level in the tank bag 40A is approximately reached without having to generate an overpressure in the tank bag 40A. The liquid line 50 then continues through in the upper region of the scattering container 3 through a wall 3A of the scattering container 3. Couplings 61 and 62 on the container wall 3A are provided to externally connect the liquid conduit 50 and internally the tube extension 50A thereto. This is also on the inside of the Litter container 3 relatively unproblematic, because this point of the litter box 3 is still easily accessible even in the presence of the tank bag 40A.

Figur 14 zeigt als weitere Abwandlung ein fünftes Ausführungsbeispiel. In diesem Falle wird der erste Tankbehälter (Haupttank) nicht durch einen in den Streustoffbehälter eingesetzten Tanksack sondern durch den Streustoffbehälter 3 selbst gebildet. Eine dichtend in den Streustoffbehälter 3 eingesetzte Platte 28 bildet den Grund des ersten Tankbehälters. Darunter verläuft die Fördereinrichtung zum Fördern von festen Streustoffen für den Fall, dass der Streubehälter 3 zu anderen Zeiten nicht als Flüssigkeitstank sondern in herkömmlicher Weise als Behälter zur Aufnahme von zum Beispiel Streusalz dient. Die Flüssigkeitsleitung 50 ist über einen Durchlass 63 in der Wandung 3A des Streustoffbehälters 3 in den Streustoffbehälter 3 hineingeführt und ragt mit seiner Schlauchverlängerung 50A bis an den Grund des Streustoffbehälters 3. Das Prinzip des Befüllens und Entleerens entspricht dem vorbeschriebenen Prinzip, insbesondere ähnlich dem vierten Ausführungsbeispiel gemäß Figur 13. Sofern der Flüssigkeitsdruck beim Befüllen der Tankbehälter nicht ausreicht, eine geschlossene Wassersäule in der Flüssigkeitsleitung 50 zu erzeugen, um im Anschluss daran ein selbständiges Nachströmen von Flüssigkeit aus dem Streustoffbehälter 3 in den Zusatztank 10 zu gewährleisten, können zusätzlich z.B. eine Saugpumpe 52 und ein Sperrventil 53 vorgesehen werden. Zunächst wird das Sperrventil 53 geschlossen und anschließend die Saugpumpe 52 in Betrieb genommen. Sobald die Saugpumpe 52 Flüssigkeit angesaugt hat, kann die Saugpumpe 52 abgeschaltet und anschließend das Sperrventil 53 geöffnet werden. Dann fließt die Flüssigkeit durch die Flüssigkeitsleitung 50 automatisch vom Streustoffbehälter 3 in den Zusatztank 10. Andere Möglichkeiten, um ein Fließen durch die Flüssigkeitsleitung 50 in Gang zu setzen, sind ebenfalls möglich. FIG. 14 shows as a further modification, a fifth embodiment. In this case, the first tank container (main tank) is not formed by a tank bag used in the scattering container but by the scattering container 3 itself. A sealing plate inserted into the hopper 3 plate 28 forms the bottom of the first tank. Underneath, the conveying device for conveying solid scattering substances runs in the event that the spreading container 3 at other times does not serve as a liquid tank but in a conventional manner as a container for receiving, for example, road salt. The liquid line 50 is guided into the scattering container 3 via a passage 63 in the wall 3A of the scattering container 3 and protrudes with its hose extension 50A to the bottom of the scattering container 3. The principle of filling and emptying corresponds to the above-described principle, in particular similar to the fourth embodiment according to FIG. 13 , If the liquid pressure during filling of the tank container is not sufficient to produce a closed water column in the liquid line 50 in order to ensure an independent subsequent flow of liquid from the scattering tank 3 into the additional tank 10, in addition eg a suction pump 52 and a check valve 53 be provided. First, the check valve 53 is closed and then the suction pump 52 in operation taken. Once the suction pump 52 has sucked liquid, the suction pump 52 can be turned off and then the check valve 53 are opened. Then, the liquid automatically flows through the liquid line 50 from the scattering tank 3 into the auxiliary tank 10. Other ways to start flowing through the liquid line 50 are also possible.

Anstelle des Streustoffbehälters 3 kann auch ein anderer Tank als Haupttank bzw. "erster Tank" dienen. Die vorbeschriebenen Prinzipien, insbesondere die Verwendung einer einen höchsten Punkt durchlaufenden Verbindungsleitung 50, sind darauf in gleicher Weise anwendbar.Instead of the scattering container 3, another tank can serve as the main tank or "first tank". The principles described above, in particular the use of a connecting line 50 passing through a highest point, are equally applicable thereto.

Claims (15)

  1. A method for filling a liquid tank (40A, 10; 3, 10) of a spreader (1) for winter service vehicles, wherein the liquid tank has a first tank container (40A; 3) and at least one second tank container (10) connected to the first tank container via a liquid line (50, 50A), and wherein the first tank container (40; 3) is e.g. a spreading material container (3) which is coupled or is coupleable to a spreading device (6) for spreading solid spreading materials received in the spreading material container, or a tank sack (40A) or rigid insertable tank received in the spreading material container (3), characterized by the following steps:
    - filling the first tank container (40A; 3) with liquid, such as for example brine, up to a moment as of when the liquid filled in the first tank container (40A; 3) begins to flow through the liquid line (50, 50A) into the at least one second tank container (10), and
    - filling the at least one second tank container (10) with liquid from the first tank container (40A; 3) through the liquid line (50) following the above-mentioned moment, wherein the liquid line (50, 50A) possesses a highest point (50B) and the step of filling the at least one second tank container (10) only begins and is continued exploiting hydrostatic forces after the liquid in the liquid line (50, 50A) has reached the highest point (50B).
  2. The method according to claim 1, wherein the at least one second tank container (10) is disposed beside and/or in front of the spreading material container.
  3. The method according to claim 1 or 2, wherein the highest point (50B) of the liquid line (50, 50A) lies at the height of an upper region of the first tank container (40A; 3) or thereabove, so that the step of filling the at least one second tank container (10) only begins when the first tank container (40A; 3) is completely or at least almost completely filled.
  4. The method according to claim 3, wherein a maximum filling volume of the first tank container (40A; 3) is completely filled with liquid before the filling of the at least one second tank container (10) begins.
  5. The method according to any of claims 1 to 4, wherein the filling of the first tank container (40A; 3) is continued during the filling of the second tank container (10).
  6. A method for emptying a liquid tank (40A, 10; 3, 10) of a spreader (1) for winter service vehicles, wherein the liquid tank has a first tank container (40A; 3) and at least one second tank container (10) connected to the first tank container via a liquid line (50; 50A), a first line opening of the liquid line (50A) lies in the first tank container, preferably at the bottom of the first tank container (40A; 3), and the first tank container (40A; 3) is e.g. a spreading material container (3) which is coupled or is coupleable to a spreading device for spreading solid spreading materials received in the spreading material container, or a tank sack (40A) or rigid insertable tank received in the spreading material container (3), wherein the liquid line (50, 50A) is so disposed that a highest point (50B) of the liquid line (50, 50A) lies between the first line opening of the liquid line (50) and the second line opening of the liquid line (50A), having the following steps:
    - removing liquid from the first tank container (40A; 3) through the second tank container (10) by a second line opening of the liquid line (50) being so disposed that upon removal of the liquid from the second tank container (10) liquid from the first tank container (40A; 3) flows into the second tank container (10) solely due to hydrostatic forces.
  7. The method according to claim 6, wherein the at least one second tank container (10) is disposed beside and/or in front of the spreading material container (3).
  8. The method according to claim 6 or 7, wherein the highest point (50B) of the liquid line (50, 50A) lies at the height of an upper region of the first tank container (40A; 3) or thereabove.
  9. A spreader (1) for winter service vehicles having a liquid tank (40A, 10; 3, 10) which comprises at least one first tank container (40A; 3) and at least one second tank container (10) connected to the first tank container via a liquid line (50, 50A), wherein the first tank container (40A; 3) is e.g. a spreading material container (3) which is coupled or is coupleable to a spreading device (6) for spreading solid spreading materials received in the spreading material container, or a tank sack (40A) or rigid insertable tank received in the spreading material container (3), and wherein the liquid line (50, 50A) is attached at a first end to the first tank container (40A; 3) or protrudes thereinto and possesses there a first line opening, preferably at the bottom of the first tank container (40A; 3), and is attached at a second end to the at least second tank container (10) or protrudes thereinto and possesses there a second line opening, preferably at a place below the first line opening, wherein the liquid line (50, 50A) possesses a highest point (50B) between the first line opening and the second line opening, which lies at the height of an upper region of the first tank container (40A; 3) or thereabove, and wherein the liquid line (50, 50A) is arranged to transport liquid from the first tank container (40A; 3) through the liquid line (50, 50A) into the second tank container (10) without any device for actively conveying the liquid and solely due to hydrostatic forces.
  10. The spreader according to claim 9, wherein the at least one second tank container (10) is disposed beside and/or in front of the spreading material container (3).
  11. The spreader according to claim 9 or 10, wherein there is provided on the liquid line a suction pump with which the liquid is suckable from the first tank container beyond the highest point (50B) of the liquid line once, so that subsequently after the suction pump is switched off the liquid is transported through the liquid line (50, 50A) solely due to hydrostatic forces.
  12. The spreader according to claim 10 or 11, wherein the liquid line (50, 50A) leads through a walling (3a) of the spreading material container (3).
  13. The spreader according to any of claims 9 to 12, wherein the first tank container (40A; 3) has a first vent opening (44) which is arranged so that air can escape through the first vent opening while the first tank container (40A; 3) is being filled with liquid through an opening (42) different from the first vent opening (44).
  14. The spreader according to any of claims 9 to 13, wherein the at least one second tank container (10) has at least a second vent opening (30; 30A; 31) which is arranged so that air can escape through the second vent opening while the at least one second tank container (10) is being filled with liquid through an opening different from the second vent opening (30; 30A; 31).
  15. A winter service vehicle comprising a spreader according to any of claims 9 to 14.
EP12734916.5A 2012-07-06 2012-07-06 Method for filling and emptying a liquid tank of a spreader device for winter service vehicles, and spreader device Active EP2697435B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK13177033.1T DK2682527T3 (en) 2012-07-06 2012-07-06 A method for filling and emptying a liquid tank a current injection device for winter service vehicle and sprinkling appliance
ES13177033.1T ES2575162T3 (en) 2012-07-06 2012-07-06 Procedure for filling and emptying a liquid reservoir of a spreading apparatus for winter service vehicles, as well as spreading apparatus
EP13177033.1A EP2682527B1 (en) 2012-07-06 2012-07-06 Method for filling and emptying a liquid tank of a distribution device for winter service vehicles and distribution device
HRP20160627TT HRP20160627T1 (en) 2012-07-06 2016-06-07 Method for filling and emptying a liquid tank of a distribution device for winter service vehicles and distribution device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/063237 WO2014005648A1 (en) 2012-07-06 2012-07-06 Method for filling and emptying a liquid tank of a spreader device for winter service vehicles, and spreader device

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EP13177033.1A Division-Into EP2682527B1 (en) 2012-07-06 2012-07-06 Method for filling and emptying a liquid tank of a distribution device for winter service vehicles and distribution device
EP13177033.1A Division EP2682527B1 (en) 2012-07-06 2012-07-06 Method for filling and emptying a liquid tank of a distribution device for winter service vehicles and distribution device

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EP2697435A1 EP2697435A1 (en) 2014-02-19
EP2697435B1 true EP2697435B1 (en) 2015-04-15

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EP13177033.1A Active EP2682527B1 (en) 2012-07-06 2012-07-06 Method for filling and emptying a liquid tank of a distribution device for winter service vehicles and distribution device
EP12734916.5A Active EP2697435B1 (en) 2012-07-06 2012-07-06 Method for filling and emptying a liquid tank of a spreader device for winter service vehicles, and spreader device

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EP (2) EP2682527B1 (en)
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KR (1) KR20140138236A (en)
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HR (1) HRP20160627T1 (en)
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DE102015116686A1 (en) * 2015-10-01 2017-04-06 Aebi Schmidt Nederland Bv spreader
DE102015117151A1 (en) 2015-10-08 2017-04-13 Aebi Schmidt Nederland Bv Winter gritting equipment

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DK2697435T3 (en) 2015-07-20
ES2575162T3 (en) 2016-06-24
CA2859263A1 (en) 2014-01-09
DK2682527T3 (en) 2016-06-20
US20150129689A1 (en) 2015-05-14
EP2697435A1 (en) 2014-02-19
PT2682527E (en) 2016-06-08
US10577766B2 (en) 2020-03-03
RU2014129408A (en) 2016-02-10
HUE027880T2 (en) 2016-10-28
CN104136687A (en) 2014-11-05
WO2014005648A1 (en) 2014-01-09
JP5878248B2 (en) 2016-03-08
EP2682527B1 (en) 2016-03-09
CA2859263C (en) 2017-04-25
PL2682527T3 (en) 2016-09-30
JP2015511284A (en) 2015-04-16
EP2682527A3 (en) 2014-12-17
RU2603765C2 (en) 2016-11-27
KR20140138236A (en) 2014-12-03
HRP20160627T1 (en) 2016-07-29
EP2682527A2 (en) 2014-01-08
CN104136687B (en) 2016-11-23

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