EP1491686A2 - Dispositif d'épandage - Google Patents

Dispositif d'épandage 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
Authority
EP
European Patent Office
Prior art keywords
spreading
spreading material
mixing
liquid
moistened
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.)
Withdrawn
Application number
EP04014683A
Other languages
German (de)
English (en)
Other versions
EP1491686A3 (fr
Inventor
Felix Lugtenberg
Erik Nieuwenhuis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aebi Schmidt Deutschland GmbH
Original Assignee
Schmidt Holding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schmidt Holding GmbH filed Critical Schmidt Holding GmbH
Publication of EP1491686A2 publication Critical patent/EP1491686A2/fr
Publication of EP1491686A3 publication Critical patent/EP1491686A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
    • E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads

Definitions

  • the 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.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Nozzles (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
EP04014683A 2003-06-26 2004-06-23 Dispositif d'épandage Withdrawn EP1491686A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328913 2003-06-26
DE2003128913 DE10328913B3 (de) 2003-06-26 2003-06-26 Streugerät

Publications (2)

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

Family

ID=33395008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04014683A Withdrawn EP1491686A3 (fr) 2003-06-26 2004-06-23 Dispositif d'épandage

Country Status (3)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1775386A1 (fr) 2005-10-13 2007-04-18 Küpper-Weisser GmbH Véhicule d'épandage pour service d'hiver
EP1775387A1 (fr) * 2005-10-13 2007-04-18 Küpper-Weisser GmbH Véhicule d'épandage pour service d'hiver
EP1775385A1 (fr) * 2005-10-13 2007-04-18 Küpper-Weisser GmbH Appareil de répandage pour service d'hiver
WO2008061714A1 (fr) * 2006-11-23 2008-05-29 Schmidt Holding Gmbh Dispositif d'épandage à monter sur un véhicule de support
WO2008118029A3 (fr) * 2007-05-02 2008-11-13 Quinspread Technologies Ltd Appareil et procédé d'épandage de matériau particulaire
EP3929358A1 (fr) 2020-06-24 2021-12-29 Aebi Schmidt Nederland BV Appareil d'épandage pour service hivernal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011106086A1 (de) * 2011-06-08 2012-12-13 Aebi Schmidt Nederland Bv Streugerät
DE102013009388A1 (de) 2013-06-05 2014-12-11 Aebi Schmidt Nederland Bv Winterdienst-Streugerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544060C2 (fr) 1985-12-13 1989-08-24 Willy 7715 Braeunlingen De Kuepper
DE3924358A1 (de) 1989-07-22 1991-01-31 Pietsch Max Kg Gmbh & Co Streuvorrichtung fuer den winterdienst
EP0593996A1 (fr) 1992-10-21 1994-04-27 KÜPPER-WEISSER GmbH Dispositif d'épandage avec alimentation de liquide pour service d'hiver
DE10007925A1 (de) 2000-02-21 2001-08-30 Kuepper Weisser Gmbh Streuvorrichtung zum Ausbringen von angefeuchtetem Streugut

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1459727B1 (de) * 1964-08-25 1970-10-15 Anton Karlbacher Fahrbare Vorrichtung zum Streuen von Streugut auf Straßen od. dgl.
DE3045044A1 (de) * 1980-01-21 1982-10-21 Schneider, geb. Sternberg, Gerda, 1000 Berlin Vorrichtung zum erhitzen und verteilen von granulat zum abstumpfen von verkehrsflaechen gegen eisglaette
US4575010A (en) * 1984-06-20 1986-03-11 Zimmerman Harold M Method and apparatus for spreading heated sand
DE9010069U1 (de) * 1989-07-26 1990-10-04 Ing. Alfred Schmidt Gmbh, 7822 St Blasien Streuvorrichtung für feuchtes Streugut
IT1241203B (it) * 1990-04-24 1993-12-29 Giletta Michele S P A Dispositivo spargitore di materiali granulari o in polvere atto ad essere montato su un veicolo
SE9401054L (sv) * 1994-03-28 1995-03-06 Friggeraokers Verkstaeder Ab Sätt och anordning vid spridning av saltuppslamning

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544060C2 (fr) 1985-12-13 1989-08-24 Willy 7715 Braeunlingen De Kuepper
DE3924358A1 (de) 1989-07-22 1991-01-31 Pietsch Max Kg Gmbh & Co Streuvorrichtung fuer den winterdienst
EP0593996A1 (fr) 1992-10-21 1994-04-27 KÜPPER-WEISSER GmbH Dispositif d'épandage avec alimentation de liquide pour service d'hiver
DE10007925A1 (de) 2000-02-21 2001-08-30 Kuepper Weisser Gmbh Streuvorrichtung zum Ausbringen von angefeuchtetem Streugut

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1775386A1 (fr) 2005-10-13 2007-04-18 Küpper-Weisser GmbH Véhicule d'épandage pour service d'hiver
EP1775387A1 (fr) * 2005-10-13 2007-04-18 Küpper-Weisser GmbH Véhicule d'épandage pour service d'hiver
EP1775385A1 (fr) * 2005-10-13 2007-04-18 Küpper-Weisser GmbH Appareil de répandage pour service d'hiver
JP2007107376A (ja) * 2005-10-13 2007-04-26 Kuepper-Weisser Gmbh 冬季散布サービス装置
JP2007107375A (ja) * 2005-10-13 2007-04-26 Kuepper-Weisser Gmbh 凍結防止剤散布装置
NO340599B1 (no) * 2005-10-13 2017-05-15 Kuepper Weisser Gmbh Strøapparat for vintervedlikehold
WO2008061714A1 (fr) * 2006-11-23 2008-05-29 Schmidt Holding Gmbh Dispositif d'épandage à monter sur un véhicule de support
WO2008118029A3 (fr) * 2007-05-02 2008-11-13 Quinspread Technologies Ltd Appareil et procédé d'épandage de matériau particulaire
AU2008100708B4 (en) * 2007-05-02 2012-08-02 Nhance Technologies (Australia) Limited Apparatus and Method for Spreading Particulate Material
AU2008230193B2 (en) * 2007-05-02 2012-08-16 Nhance Technologies (Australia) Limited Apparatus and method for spreading particulate material
EP3929358A1 (fr) 2020-06-24 2021-12-29 Aebi Schmidt Nederland BV Appareil d'épandage pour service hivernal
DE102020116598A1 (de) 2020-06-24 2021-12-30 Aebi Schmidt Nederland Bv Winterdienst-Streugerät

Also Published As

Publication number Publication date
EP1491686A3 (fr) 2005-08-24
NO20042685L (no) 2004-12-27
DE10328913B3 (de) 2005-03-24

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