EP1491686A2 - Spreading apparatus - Google Patents

Spreading apparatus Download PDF

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Publication number
EP1491686A2
EP1491686A2 EP04014683A EP04014683A EP1491686A2 EP 1491686 A2 EP1491686 A2 EP 1491686A2 EP 04014683 A EP04014683 A EP 04014683A EP 04014683 A EP04014683 A EP 04014683A EP 1491686 A2 EP1491686 A2 EP 1491686A2
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EP
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Prior art keywords
spreading
mixing
spreading material
housing
liquid
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EP04014683A
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German (de)
French (fr)
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EP1491686A3 (en
Inventor
Felix Lugtenberg
Erik Nieuwenhuis
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Schmidt Holding GmbH
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Schmidt Holding GmbH
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Publication of EP1491686A2 publication Critical patent/EP1491686A2/en
Publication of EP1491686A3 publication Critical patent/EP1491686A3/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • 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 present invention relates to a spreading device for mounting on a carrier vehicle, comprising a spreading material storage container with a spreading material conveying device, a liquid container with a liquid conveying device, a dispensing device for moistened spreading material and a feed device connecting the spreading material conveying device to the dispensing device, the in which Spreading material storage container of dry spreading material is moistened with liquid after leaving the spreading material conveying device in a predetermined humidification zone.
  • Spreaders of the type specified above are used in winter service to combat slippery surfaces.
  • Dulling material grit
  • / or thawing material salt
  • the spreading material is moistened with liquid in the specified moistening zone.
  • the spreading material is moistened on the spreading plate usually used as a spreading device (see, for example, DE 3924358 A1, DE 3544060 C2, EP 593996 A1) or directly above the spreading plate (see. DE 10007925 A1).
  • a spreading device see, for example, DE 3924358 A1, DE 3544060 C2, EP 593996 A1
  • DE 10007925 A1 the spreading plate usually used as a spreading device
  • the results that can be achieved with such spreaders are unsatisfactory; because the dwell time of the spreading material on the spreading disc is too short to be effective, to some extent homogeneous moistening of the spreading material before it leaves the spreading plate would be possible.
  • the feed device comprises a chute and a downpipe arranged above it.
  • the liquid is atomized in the upper end of the downpipe via a turntable; Motor-driven rotors are provided below the corresponding humidification zone, in the central area of the downpipe.
  • Disadvantages of this spreading device are the unsatisfactory homogeneity of the moistening of the spreading material and, furthermore, the design-related restriction to certain mixing ratios between the spreading material and the liquid.
  • problems occur due to caking of the moist spreading material on the downpipe.
  • the scattering device known from EP 675231 B1 can be operated without problems only with such a high proportion of liquid that possible caking of the salt on the downpipe is washed away by excess liquid.
  • the present invention has for its object to provide a spreader of the type mentioned that is suitable for applying a homogeneous moistened spreading material with any mixing ratio of spreading material and liquid.
  • the feed device comprises a motor-driven mixing and homogenizing screw which is accommodated in an associated housing, the mixing and homogenizing screw feeding the moistened spreading material directly onto the spreading device.
  • the spreading device according to the invention is distinguished by a separate, motor-driven mixing and homogenizing screw which is part of the feed device which is connected downstream of the conveyor device assigned to the spreading material reservoir and connects it to the dispensing device.
  • the mixing and homogenizing screw actively promotes the mixture that occurs with a uniform, intimate mixing of the spreading material and liquid within the housing of the mixing and homogenizing screw directly in front of the dispensing device.
  • the batch falls without any further contact with the wall from the housing of the mixing and homogenizing screw (possibly a corresponding outlet connection) directly onto the spreading disc or the other spreading device; Caking of the moistened spreading material on any component is reliably prevented in this way, and in any mixing ratio between spreading material and liquid. Because of the correspondingly long A particularly uniform moistening of the spreading material or a particularly homogeneous mixture of spreading material and liquid can be achieved in the residence time of the spreading material in the mixing and homogenizing screw.
  • the mixing and homogenizing screw can additionally serve in the sense of finely metering the batch fed to the dispensing device in such a way that possible non-uniformities and fluctuations in the spreading material supply are compensated for in the areas of the feeding device upstream of the mixing and homogenizing screw.
  • the mixing and homogenizing screw and the associated housing as well as the drive for the mixing and homogenizing screw, the latter is additionally suitable for crushing coarse-grained salt crystals.
  • This has an extremely favorable effect on the advantages associated with moistening the spreading material. Because such crushing of the salt grains results in such a shift in the surface / weight ratio of the individual grains that the moisture adheres better when the moistened salt grain hits the surface.
  • the effect that can be observed in conventional spreading devices of the generic type namely that the liquid adhering to the salt grains after their moistening sprays when the salt grains hit the road surface to be sprinkled, can be reduced in this way, with the result that the deicing effect is substantially enhanced becomes.
  • the liquid delivery device opens into the housing of the mixing and homogenizing screw.
  • Spreading material and liquid come in this case only in contact within the housing of the mixing and homogenizing screw.
  • the liquid feed into the housing of the mixing and homogenizing screw is particularly preferably arranged upstream of the grit feed. This favors a particularly effective moistening of the spreading material.
  • Another development of the spreading device according to the invention is characterized in that the mixing and homogenizing screw is arranged inclined. This also proves to be favorable with regard to a particularly effective moistening of the spreading material.
  • the feed device upstream of the motor-driven mixing and homogenizing screw, can comprise a pouring trough which opens into the housing of the mixing and homogenizing screw.
  • a chute can be made in several parts in order to be able to compensate for changes in position of the dispensing unit relative to the grit storage container.
  • a chute is not mandatory; Rather, within the scope of the present invention, a direct feeding of the spreading material into the housing of the mixing and homogenizing screw through the spreading material delivery device assigned to the spreading material storage container is also possible.
  • the present invention can be used with particular advantage in those spreading devices in which the spreading material conveying device comprises a belt conveyor arranged at the bottom in the spreading material storage container.
  • Another advantage is that the mixing and homogenizing screw is particularly useful is suitable to break up any existing clumps. If this advantage is consistently exploited, the effort associated with a separate comminution device arranged in the grit storage container can be reduced.
  • the spreading device shown schematically in the drawing for mounting on a carrier vehicle comprises a spreading material storage container 1 with a spreading material conveying device 2, a liquid container 3 with a liquid conveying device (pump 4), a dispensing device 5 for moistened spreading material and one Spreading material conveying device with feed device 6 connecting the dispensing device.
  • the spreading material conveying device 2 is designed as a belt conveyor 7.
  • the spreading device 5 comprises a spreading disc 8 which is driven to rotate about a vertical axis by a hydraulic motor 9.
  • the feed device 6 of the spreading device shown comprises a pouring trough 10 and a mixing and homogenizing screw 12, which is accommodated in an associated housing 11 and is driven by a hydraulic motor 13.
  • the mixing and homogenizing screw 12 is on the one hand - via the chute 10 - the dry spreading material 14 leaving the belt conveyor 7 and on the other hand - via the pump 4 and the downstream one Liquid line 15 - the liquid 16 (water or brine) stored in the liquid storage container 3 is supplied.
  • the liquid delivery device opens directly into the housing 11 of the mixing and homogenizing screw 12, the liquid feed being arranged in the housing 11 of the mixing and homogenizing screw 12 upstream of the spreading material feed.
  • the mixing and homogenizing screw 12 which is driven essentially synchronized with the belt conveyor 7, is arranged inclined. It gives the moistened spreading material 17 directly to the spreading plate 8 in such a way that the moistened spreading material 17 reaches the spreading plate 8 without further contact with the wall after leaving the housing 11 of the mixing and homogenizing screw 12.

Abstract

The road salt spreader is mounted on a motor vehicle and has a hopper (1) with a salt conveyor (2) and a fluid tank (3) with a fluid feed. There is a disperser (5) for moistened salt (17) and a motorized mixing and homogenizing auger (12) mounted in a housing (12). The auger feeds moistened salt to the disperser. The fluid feed opens into the auger housing.

Description

Die vorliegende Erfindung betrifft ein Streugerät zum Aufbau auf ein Trägerfahrzeug, umfassend einen Streustoffvorratsbehälter mit einer Streustoff-Fördereinrichtung, einen Flüssigkeitsbehälter mit einer Flüssigkeits-Fördereinrichtung, eine Ausbringeinrichtung für befeuchteten Streustoff und eine die Streustoff-Fördereinrichtung mit der Ausbringeinrichtung verbindende Zuführeinrichtung, wobei der in dem Streustoffvorratsbehälter bevorratete trockene Streustoff nach Verlassen der Streustoff-Fördereinrichtung in einer vorgegebenen Befeuchtungszone mit Flüssigkeit befeuchtet wird.The present invention relates to a spreading device for mounting on a carrier vehicle, comprising a spreading material storage container with a spreading material conveying device, a liquid container with a liquid conveying device, a dispensing device for moistened spreading material and a feed device connecting the spreading material conveying device to the dispensing device, the in which Spreading material storage container of dry spreading material is moistened with liquid after leaving the spreading material conveying device in a predetermined humidification zone.

Streugeräte der vorstehend angegebenen Art werden im Winterdienst zur Glättebekämpfung eingesetzt. Als Streustoff kommt dabei abstumpfendes Material (Splitt) und/oder auftauendes Material (Salz) zum Einsatz. Beim Einsatz von auftauendem Streustoff hat sich dessen Befeuchtung als vorteilhaft herausgestellt, um die Wirkung zu beschleunigen und ein Verfrachten des ausgebrachten Salzes zu unterbinden. Hierzu wird bei Streugeräten der gattungsgemäßen Art der Streustoff in der vorgegebenen Befeuchtungszone mit Flüssigkeit befeuchtet.Spreaders of the type specified above are used in winter service to combat slippery surfaces. Dulling material (grit) and / or thawing material (salt) is used as the spreading material. When thawing spreading material is used, its moistening has proven to be advantageous in order to accelerate the effect and prevent the salt that has been applied from being removed. For this purpose, in the case of spreaders of the generic type, the spreading material is moistened with liquid in the specified moistening zone.

Verbreitet erfolgt dabei die Befeuchtung des Streustoffes auf dem üblicherweise als Ausbringvorrichtung eingesetzten Streuteller (vgl. z.B. DE 3924358 A1, DE 3544060 C2, EP 593996 A1) oder aber unmittelbar oberhalb des Streutellers (vgl. DE 10007925 A1). Die mit solchen Streugeräten erzielbaren Ergebnisse befriedigen nicht; denn die Verweildauer des Streustoffes auf dem Streuteller ist zu gering, als daß eine wirksame, einigermaßen homogene Befeuchtung des Streustoffes, bevor dieser den Streuteller verläßt, möglich wäre.Commonly, the spreading material is moistened on the spreading plate usually used as a spreading device (see, for example, DE 3924358 A1, DE 3544060 C2, EP 593996 A1) or directly above the spreading plate (see. DE 10007925 A1). The results that can be achieved with such spreaders are unsatisfactory; because the dwell time of the spreading material on the spreading disc is too short to be effective, to some extent homogeneous moistening of the spreading material before it leaves the spreading plate would be possible.

Ein weiteres gattungsgemäßes Streugerät ist aus der EP 675231 B1 bekannt. Bei diesem Streugerät umfaßt die Zuführeinrichtung eine Schüttrinne und ein oberhalb dieser angeordnetes Fallrohr. Im oberen Ende des Fallrohres wird die Flüssigkeit über einen Drehteller verdüst; unterhalb der entsprechenden Befeuchtungszone, im mittleren Bereich des Fallrohres, sind motorisch angetriebene Rotoren vorgesehen. Nachteilig bei diesem Streugerät ist die wiederum unbefriedigende Homogenität der Befeuchtung des Streustoffes und des weiteren die bauartbedingte Beschränkung auf bestimmte Mischungsverhältnisse zwischen Streustoff und Flüssigkeit. Gerade in dem besonders wichtigen Bereich einer geringen und mittleren Befeuchtung des Streustoffes kommt es durch Anbackungen des feuchten Streustoffes an dem Fallrohr zu Problemen. Das aus der EP 675231 B1 bekannte Streugerät kann problemfrei nur bei einem so hohen Flüssigkeitsanteil betrieben werden, daß mögliche Anbackungen des Salzes an dem Fallrohr durch überschüssige Flüssigkeit abgeschwemmt werden.Another generic spreader is known from EP 675231 B1. In this spreader, the feed device comprises a chute and a downpipe arranged above it. The liquid is atomized in the upper end of the downpipe via a turntable; Motor-driven rotors are provided below the corresponding humidification zone, in the central area of the downpipe. Disadvantages of this spreading device are the unsatisfactory homogeneity of the moistening of the spreading material and, furthermore, the design-related restriction to certain mixing ratios between the spreading material and the liquid. Especially in the particularly important area of low and medium moistening of the spreading material, problems occur due to caking of the moist spreading material on the downpipe. The scattering device known from EP 675231 B1 can be operated without problems only with such a high proportion of liquid that possible caking of the salt on the downpipe is washed away by excess liquid.

Bereits bedeutend früher ist, allerdings ohne nachhaltigen Erfolg, vorgeschlagen worden (vgl. US 3420451), den Streustoff im Bereich der dem Streustoffvorratsbehälter zugeordneten Fördereinrichtung zu befeuchten, um anschließend den angefeuchteten Streustoff der Ausbringeinrichtung über ein Fallrohr zuzuführen. Die vorstehend im Zusammenhang mit der EP 675231 B1 beschriebenen Probleme (Anbackungen des angefeuchteten Streustoffs an dem Fallrohr) gelten hier in gleicher Weise.It has already been proposed significantly earlier, but without lasting success (cf. US 3420451), to moisten the spreading material in the area of the conveyor device assigned to the spreading material storage container, in order to then feed the moistened spreading material to the dispensing device via a downpipe. The problems described above in connection with EP 675231 B1 (caking of the moistened scattering material on the downpipe) apply here in the same way.

Im Lichte des vorstehend aufgezeigten Standes der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein Streugerät der eingangs angegebenen Art bereitzustellen, daß sich zum Ausbringen eines möglichst homogenen angefeuchteten Streustoffes bei einem beliebigen Mischungsverhältnis von Streustoff und Flüssigkeit eignet.In the light of the prior art shown above, the present invention has for its object to provide a spreader of the type mentioned that is suitable for applying a homogeneous moistened spreading material with any mixing ratio of spreading material and liquid.

Gelöst wird diese Aufgabenstellung gemäß der vorliegenden Erfindung dadurch, daß die Zuführeinrichtung eine motorisch angetriebene Misch- und Homogenisierungsschnecke umfaßt, die in einem zugeordneten Gehäuse untergebracht ist, wobei die Misch- und Homogenisierungsschnecke den angefeuchteten Streustoff unmittelbar auf die Ausbringeinrichtung aufgibt. Des erfindungsgemäße Streugerät zeichnet sich mit anderen Worten durch eine gesonderte, motorisch angetriebene Misch- und Homogenisierungsschnecke aus, die Teil der Zuführeinrichtung ist, welche der dem Streustoffvorratsbehälter zugeordneten Fördereinrichtung nachgeschaltet ist und diese mit der Ausbringeinrichtung verbindet. Die Misch- und Homogenisierungsschnecke fördert dabei aktiv das bei einer gleichmäßigen, innigen Durchmischung von Streustoff und Flüssigkeit innerhalb des Gehäuses der Misch- und Homogenisierungsschnecke entstehende Gemenge unmittelbar vor die Ausbringeinrichtung. Das Gemenge fällt, ohne irgend eine weitere Wandberührung, aus dem Gehäuse der Misch- und Homogenisierungsschnecke (ggfs. einem entsprechenden Austrittsstutzen) unmittelbar auf den Streuteller bzw. die sonstige Ausbringeinrichtung; Anbackungen des angefeuchteten Streustoffes an irgendwelchen Bauteilen werden auf diese Weise zuverlässig verhindert, und zwar bei jedem beliebigen Mischungsverhältnis zwischen Streustoff und Flüssigkeit. Durch die entsprechend lange Verweildauer des Streustoffes in der Misch- und Homogenisierungsschnecke läßt sich eine besonders gleichmäßige Befeuchtung des Streustoffes bzw. ein besonders homogenes Streustoff-Flüssigkeits-Gemenge erreichen. Die Misch- und Homogenisierungsschnecke kann ergänzend in dem Sinne der Feindosierung des der Ausbringeinrichtung zugeführten Gemenges dienen, daß mögliche Ungleichförmigkeiten und Schwankungen der Streustoffzufuhr in den der Misch- und Homogenisierungsschnecke vorgeschalteten Bereichen der Zuführeinrichtung ausgeglichen werden.This object is achieved in accordance with the present invention in that the feed device comprises a motor-driven mixing and homogenizing screw which is accommodated in an associated housing, the mixing and homogenizing screw feeding the moistened spreading material directly onto the spreading device. In other words, the spreading device according to the invention is distinguished by a separate, motor-driven mixing and homogenizing screw which is part of the feed device which is connected downstream of the conveyor device assigned to the spreading material reservoir and connects it to the dispensing device. The mixing and homogenizing screw actively promotes the mixture that occurs with a uniform, intimate mixing of the spreading material and liquid within the housing of the mixing and homogenizing screw directly in front of the dispensing device. The batch falls without any further contact with the wall from the housing of the mixing and homogenizing screw (possibly a corresponding outlet connection) directly onto the spreading disc or the other spreading device; Caking of the moistened spreading material on any component is reliably prevented in this way, and in any mixing ratio between spreading material and liquid. Because of the correspondingly long A particularly uniform moistening of the spreading material or a particularly homogeneous mixture of spreading material and liquid can be achieved in the residence time of the spreading material in the mixing and homogenizing screw. The mixing and homogenizing screw can additionally serve in the sense of finely metering the batch fed to the dispensing device in such a way that possible non-uniformities and fluctuations in the spreading material supply are compensated for in the areas of the feeding device upstream of the mixing and homogenizing screw.

Bei entsprechender Auslegung der Misch- und Homogenisierungsschnecke und des zugeordneten Gehäuses wie auch des Antriebs für die Misch- und Homogenisierungsschnekke ist letztere ergänzend dazu geeignet, grobkörnige Salzkristalle zu zerkleinern. Dies wirkt sich äußerst günstig auf die mit der Befeuchtung des Streustoffs verbundenen Vorteile aus. Denn durch eine solche Zerkleinerung der Salzkörner ergibt sich eine solche Verschiebung des Oberflächen/Gewichts-Verhältnisses der einzelnen Körner, daß die Feuchtigkeit besser anhaftet, wenn das befeuchtet Salzkorn auf dem Untergrund auftrifft. Der bei herkömmlichen Streugeräten der gattungsgemäßen Art zu beobachtende Effekt, daß nämlich die an den Salzkörnern nach deren Befeuchtung anhaftende Flüssigkeit beim Auftreffen der Salzkörner auf die zu bestreuende Fahrbahn abspritzt, läßt sich auf diese Weise nachhaltig reduzieren, mit der Folge, daß die Enteisungswirkung substantiell begünstigt wird.With appropriate design of the mixing and homogenizing screw and the associated housing as well as the drive for the mixing and homogenizing screw, the latter is additionally suitable for crushing coarse-grained salt crystals. This has an extremely favorable effect on the advantages associated with moistening the spreading material. Because such crushing of the salt grains results in such a shift in the surface / weight ratio of the individual grains that the moisture adheres better when the moistened salt grain hits the surface. The effect that can be observed in conventional spreading devices of the generic type, namely that the liquid adhering to the salt grains after their moistening sprays when the salt grains hit the road surface to be sprinkled, can be reduced in this way, with the result that the deicing effect is substantially enhanced becomes.

Gemäß einer ersten bevorzugten Weiterbildung der Erfindung ist vorgesehen, daß die Flüssigkeits-Fördereinrichtung in das Gehäuse der Misch- und Homogenisierungsschnecke mündet. Streustoff und Flüssigkeit kommen in diesem Falle erst innerhalb des Gehäuses der Mischund Homogenisierungsschnecke in Berührung. Besonders bevorzugt ist dabei die Flüssigkeitseinspeisung in das Gehäuse der Misch- und Homogenisierungsschnecke stromaufwärts der Streustoffeinspeisung angeordnet. Dies begünstigt eine besonders wirksame Befeuchtung des Streustoffs.According to a first preferred development of the invention, it is provided that the liquid delivery device opens into the housing of the mixing and homogenizing screw. Spreading material and liquid come in this case only in contact within the housing of the mixing and homogenizing screw. The liquid feed into the housing of the mixing and homogenizing screw is particularly preferably arranged upstream of the grit feed. This favors a particularly effective moistening of the spreading material.

Eine andere Weiterbildung des erfindungsgemäßen Streugeräts zeichnet sich dadurch aus, daß die Misch- und Homogenisierungsschnecke geneigt angeordnet ist. Auch dies erweist sich als günstig im Hinblick auf eine besonders wirksame Befeuchtung des Streustoffs.Another development of the spreading device according to the invention is characterized in that the mixing and homogenizing screw is arranged inclined. This also proves to be favorable with regard to a particularly effective moistening of the spreading material.

Stromaufwärts der motorisch angetriebenen Misch- und Homogenisierungsschnecke kann die Zuführeinrichtung gemäß einer anderen Weiterbildung der Erfindung eine Schüttrinne umfassen, welche in das Gehäuse der Mischund Homogenisierungsschnecke mündet. Insbesondere kann eine solche Schüttrinne mehrteilig ausgeführt sein, um Lageveränderungen der Ausbringeinheit relativ zum Streustoffvorratsbehälter ausgleichen zu können. Zwingend ist eine solche Schüttrinne indessen nicht; vielmehr kommt im Rahmen der vorliegenden Erfindung ebenfalls eine direkte Einspeisung des Streustoffs durch die dem Streustoffvorratsbehälter zugeordnete Streustoff-Fördereinrichtung in das Gehäuse der Mischund Homogenisierungsschnecke in Betracht.According to another development of the invention, upstream of the motor-driven mixing and homogenizing screw, the feed device can comprise a pouring trough which opens into the housing of the mixing and homogenizing screw. In particular, such a chute can be made in several parts in order to be able to compensate for changes in position of the dispensing unit relative to the grit storage container. However, such a chute is not mandatory; Rather, within the scope of the present invention, a direct feeding of the spreading material into the housing of the mixing and homogenizing screw through the spreading material delivery device assigned to the spreading material storage container is also possible.

Mit besonderem Vorteil läßt sich die vorliegende Erfindung bei solchen Streugeräten einsetzen, bei denen die Streustoff-Fördereinrichtung einen bodenseitig im Streustoffvorratsbehälter angeordneten Bandförderer umfaßt. Hier kommt als weiterer Vorteil in besonderer Weise zum tragen, daß die Misch- und Homogenisierungsschnecke geeignet ist, möglicherweise bestehende Verklumpungen aufzubrechen. Wird dieser Vorteil konsequent ausgenutzt, läßt sich der mit einer gesonderten, in dem Streustoffvorratsbehälter angeordneten Zerkleinerungseinrichtung verbundene Aufwand ggfs. reduzieren.The present invention can be used with particular advantage in those spreading devices in which the spreading material conveying device comprises a belt conveyor arranged at the bottom in the spreading material storage container. Another advantage is that the mixing and homogenizing screw is particularly useful is suitable to break up any existing clumps. If this advantage is consistently exploited, the effort associated with a separate comminution device arranged in the grit storage container can be reduced.

Im folgenden wird die vorliegende Erfindung anhand eines in der Zeichnung veranschaulichten bevorzugten Ausführungsbeispiels näher erläutert.The present invention is explained in more detail below on the basis of a preferred exemplary embodiment illustrated in the drawing.

In als solches bekannter Weise umfaßt das in der Zeichnung schematisch gezeigte Streugerät zum Aufbau auf ein Trägerfahrzeug einen Streustoffvorratsbehälter 1 mit einer Streustoff-Fördereinrichtung 2, einen Flüssigkeitsbehälter 3 mit einer Flüssigkeits-Fördereinrichtung (Pumpe 4), eine Ausbringeinrichtung 5 für befeuchteten Streustoff und eine die Streustoff-Fördereinrichtung mit der Ausbringeinrichtung verbindende Zuführeinrichtung 6. Die Streustoff-Fördereinrichtung 2 ist dabei als Bandförderer 7 ausgeführt. Die Ausbringeinrichtung 5 umfaßt einen Streuteller 8, der durch einen Hydraulikmotor 9 um eine vertikale Achse rotierend angetrieben wird. In Anbetracht dessen, daß Streugeräte mit einem solchen grundsätzlichen Aufbau hinlänglich bekannt sind, bedarf es insoweit keiner weiteren Erläuterungen.In a manner known as such, the spreading device shown schematically in the drawing for mounting on a carrier vehicle comprises a spreading material storage container 1 with a spreading material conveying device 2, a liquid container 3 with a liquid conveying device (pump 4), a dispensing device 5 for moistened spreading material and one Spreading material conveying device with feed device 6 connecting the dispensing device. The spreading material conveying device 2 is designed as a belt conveyor 7. The spreading device 5 comprises a spreading disc 8 which is driven to rotate about a vertical axis by a hydraulic motor 9. In view of the fact that spreaders with such a basic structure are well known, no further explanations are required.

Die Zuführeinrichtung 6 des gezeigten Streugeräts umfaßt eine Schüttrinne 10 sowie eine in einem zugeordneten Gehäuse 11 untergebrachte Misch- und Homogenisierungsschnecke 12, welche durch einen Hydraulikmotor 13 angetrieben wird. Der Misch- und Homogenisierungsschnecke 12 wird einerseits - über die Schüttrinne 10 - der den Bandförderer 7 verlassende trockene Streustoff 14 und andererseits - über die Pumpe 4 und die nachgeschaltete Flüssigkeitsleitung 15 - die in dem Flüssigkeits-Vorratsbehälter 3 bevorratete Flüssigkeit 16 (Wasser oder Sole) zugeführt. Die Flüssigkeits-Fördereinrichtung mündet dabei direkt in das Gehäuse 11 der Misch- und Homogenisierungsschnecke 12, wobei die Flüssigkeitseinspeisung in das Gehäuse 11 der Mischund Homogenisierungsschnecke 12 stromaufwärts der Streustoffeinspeisung angeordnet ist.The feed device 6 of the spreading device shown comprises a pouring trough 10 and a mixing and homogenizing screw 12, which is accommodated in an associated housing 11 and is driven by a hydraulic motor 13. The mixing and homogenizing screw 12 is on the one hand - via the chute 10 - the dry spreading material 14 leaving the belt conveyor 7 and on the other hand - via the pump 4 and the downstream one Liquid line 15 - the liquid 16 (water or brine) stored in the liquid storage container 3 is supplied. The liquid delivery device opens directly into the housing 11 of the mixing and homogenizing screw 12, the liquid feed being arranged in the housing 11 of the mixing and homogenizing screw 12 upstream of the spreading material feed.

Die Misch- und Homogenisierungsschnecke 12, welche im wesentlichen mit dem Bandförderer 7 synchronisiert angetrieben wird, ist geneigt angeordnet. Sie gibt den angefeuchteten Streustoff 17 in dem Sinne unmittelbar auf den Streuteller 8 auf, daß der angefeuchtete Streustoff 17 nach Verlassen des Gehäuses 11 der Misch- und Homogenisierungsschnecke 12 ohne weitere Wandberührung auf den Streuteller 8 gelangt.The mixing and homogenizing screw 12, which is driven essentially synchronized with the belt conveyor 7, is arranged inclined. It gives the moistened spreading material 17 directly to the spreading plate 8 in such a way that the moistened spreading material 17 reaches the spreading plate 8 without further contact with the wall after leaving the housing 11 of the mixing and homogenizing screw 12.

Claims (9)

Streugerät zum Aufbau auf ein Trägerfahrzeug, umfassend einen Streustoffvorratsbehälter (1) mit einer Streustoff-Fördereinrichtung (2), einen Flüssigkeitsbehälter (3) mit einer Flüssigkeits-Fördereinrichtung, eine Ausbringeinrichtung (5) für befeuchteten Streustoff (17)und eine die Streustoff-Fördereinrichtung (2) mit der Ausbringeinrichtung (5) verbindende Zuführeinrichtung (6), wobei der Streustoff (14) nach Verlassen der Streustoff-Fördereinrichtung (2) in einer vorgegebenen Befeuchtungszone mit Flüssigkeit befeuchtet wird,
dadurch gekennzeichnet,
daß die Zuführeinrichtung (6) eine motorisch angetriebene Misch- und Homogenisierungsschnecke (12) umfaßt, die in einem zugeordneten Gehäuse (11) untergebracht ist, wobei die Misch- und Homogenisierungsschnecke (12) den angefeuchteten Streustoff (17) unmittelbar auf die Ausbringeinrichtung (5) aufgibt.Spreading device for mounting on a carrier vehicle, comprising a spreading material storage container (1) with a spreading material conveying device (2), a liquid container (3) with a liquid conveying device, a dispensing device (5) for moistened spreading material (17) and one the spreading material conveying device (2) feeding device (6) connecting the dispensing device (5), the spreading material (14) being moistened with liquid in a predetermined moistening zone after leaving the spreading material conveying device (2),
characterized,
that the feed device (6) comprises a motor-driven mixing and homogenizing screw (12), which is accommodated in an associated housing (11), the mixing and homogenizing screw (12) directing the moistened spreading material (17) onto the application device (5 ) gives up. Streugerät nach Anspruch 1,
dadurch gekennzeichnet,
daß die Flüssigkeits-Fördereinrichtung in das Gehäuse (11) der Misch- und Homogenisierungsschnecke (12) mündet.Spreading device according to claim 1,
characterized,
that the liquid delivery device opens into the housing (11) of the mixing and homogenizing screw (12). Streugerät nach Anspruch 2,
dadurch gekennzeichnet,
daß die Flüssigkeitseinspeisung in das Gehäuse (11) der Misch- und Homogenisierungsschnecke (12) stromaufwärts der Streustoffeinspeisung angeordnet ist.Spreading device according to claim 2,
characterized,
that the liquid feed is arranged in the housing (11) of the mixing and homogenizing screw (12) upstream of the grit feed. Streugerät nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Misch- und Homogenisierungsschnecke (12) geneigt angeordnet ist.Spreading device according to one of claims 1 to 3,
characterized,
that the mixing and homogenizing screw (12) is arranged inclined. Streugerät nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die Zuführeinrichtung (6) eine Schüttrinne (10) umfaßt, welche in das Gehäuse (11) der Misch- und Homogenisierungsschnecke (12) mündet.Spreading device according to one of claims 1 to 4,
characterized,
that the feed device (6) comprises a chute (10) which opens into the housing (11) of the mixing and homogenizing screw (12). Streugerät nach Anspruch 5,
dadurch gekennzeichnet,
daß die Schüttrinne (10) mehrteilig ausgeführt ist.Spreading device according to claim 5,
characterized,
that the chute (10) is made in several parts. Streugerät nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß die Ausbringeinrichtung (5) einen motorisch angetriebenen Streuteller (8) umfaßt, oberhalb dessen das Gehäuse (11) der Misch- und Homogenisierungsschnecke (12) eine Austrittsöffnung für befeuchteten Streustoff (17) aufweist.Spreading device according to one of claims 1 to 6,
characterized,
that the dispensing device (5) comprises a motor-driven spreading disc (8), above which the housing (11) of the mixing and homogenizing screw (12) has an outlet opening for moistened spreading material (17). Streugerät nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß die Streustoff-Fördereinrichtung (2) einen bodenseitig im Streustoffvorratsbehälter (1) angeordneten Bandförderer (7) umfaßt.Spreading device according to one of claims 1 to 7,
characterized,
that the spreading material conveying device (2) comprises a belt conveyor (7) arranged at the bottom in the spreading material storage container (1). Streugerät nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet,
daß die Misch- und Homogenisierungsschnecke (12), deren Gehäuse (11) sowie der zugeordnete Antrieb für eine Zerkleinerung der aufgegebenen Streustoffkörner ausgelegt sind.Spreading device according to one of claims 1 to 8,
characterized,
that the mixing and homogenizing screw (12), its housing (11) and the associated drive for a reduction of the size of the spreading grains.
EP04014683A 2003-06-26 2004-06-23 Spreading apparatus Withdrawn EP1491686A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328913 2003-06-26
DE2003128913 DE10328913B3 (en) 2003-06-26 2003-06-26 spreader

Publications (2)

Publication Number Publication Date
EP1491686A2 true EP1491686A2 (en) 2004-12-29
EP1491686A3 EP1491686A3 (en) 2005-08-24

Family

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Application Number Title Priority Date Filing Date
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Country Status (3)

Country Link
EP (1) EP1491686A3 (en)
DE (1) DE10328913B3 (en)
NO (1) NO20042685L (en)

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EP1775386A1 (en) 2005-10-13 2007-04-18 Küpper-Weisser GmbH Road spreading vehicle for winter service
EP1775387A1 (en) * 2005-10-13 2007-04-18 Küpper-Weisser GmbH Road spreading vehicle for winter service
EP1775385A1 (en) * 2005-10-13 2007-04-18 Küpper-Weisser GmbH Spreading apparatus for servicing of roads in winter
WO2008061714A1 (en) * 2006-11-23 2008-05-29 Schmidt Holding Gmbh A gritting device for assembly on a carrier vehicle
WO2008118029A3 (en) * 2007-05-02 2008-11-13 Quinspread Technologies Ltd Apparatus and method for spreading particulate material
EP3929358A1 (en) 2020-06-24 2021-12-29 Aebi Schmidt Nederland BV Salt spreading unit

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DE102011106086A1 (en) * 2011-06-08 2012-12-13 Aebi Schmidt Nederland Bv spreader
DE102013009388A1 (en) 2013-06-05 2014-12-11 Aebi Schmidt Nederland Bv Winter gritting equipment

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EP1775386A1 (en) 2005-10-13 2007-04-18 Küpper-Weisser GmbH Road spreading vehicle for winter service
EP1775387A1 (en) * 2005-10-13 2007-04-18 Küpper-Weisser GmbH Road spreading vehicle for winter service
EP1775385A1 (en) * 2005-10-13 2007-04-18 Küpper-Weisser GmbH Spreading apparatus for servicing of roads in winter
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EP3929358A1 (en) 2020-06-24 2021-12-29 Aebi Schmidt Nederland BV Salt spreading unit

Also Published As

Publication number Publication date
EP1491686A3 (en) 2005-08-24
DE10328913B3 (en) 2005-03-24
NO20042685L (en) 2004-12-27

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