EP1424449A2 - Dispositif d'épandage et dispositif d'humidification pour matériau épandable - Google Patents

Dispositif d'épandage et dispositif d'humidification pour matériau épandable Download PDF

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Publication number
EP1424449A2
EP1424449A2 EP03026873A EP03026873A EP1424449A2 EP 1424449 A2 EP1424449 A2 EP 1424449A2 EP 03026873 A EP03026873 A EP 03026873A EP 03026873 A EP03026873 A EP 03026873A EP 1424449 A2 EP1424449 A2 EP 1424449A2
Authority
EP
European Patent Office
Prior art keywords
openings
passage
nozzle
hollow chamber
spreading
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.)
Granted
Application number
EP03026873A
Other languages
German (de)
English (en)
Other versions
EP1424449B1 (fr
EP1424449A3 (fr
Inventor
Richard-Peter Seidl
Reinhold Otto Dankwart
Karl-Rudolf Schmidt
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.)
Kuepper Weisser GmbH
Original Assignee
Kuepper Weisser 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 Kuepper Weisser GmbH filed Critical Kuepper Weisser GmbH
Publication of EP1424449A2 publication Critical patent/EP1424449A2/fr
Publication of EP1424449A3 publication Critical patent/EP1424449A3/fr
Application granted granted Critical
Publication of EP1424449B1 publication Critical patent/EP1424449B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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

Definitions

  • the invention relates to a spreading device and in particular to a device for moistening spreading material for the spreading device.
  • a spreading device and in particular to a device for moistening spreading material for the spreading device.
  • the invention hereinafter in connection with the spreading of salt in winter service described, it is not limited to this use. Also different types of spreading material, which are used for the purpose of spreading with moisture is mixed, can be advantageous with the invention explained below sprinkle.
  • Spreading salt to be spread is usually moistened before it is spread becomes. It is assumed that with moistened road salt, the thawing effect of the salt sets in faster and the flight characteristics of the road salt be positively influenced. However, moistening the road salt can long before spreading to clump the road salt in the storage container lead, which would make spreading much more difficult. The Moistening therefore takes place essentially only at the moment of the spreading process. For this purpose, the road salt and for moistening the road salt used brine in separate containers on a winter service vehicle carried and only at the time of the actual spreading with each other blended by rotating the two components, for example Scattering plates can be fed separately in a limited area.
  • the object of the present invention is therefore to show possibilities of how better wetting of the spreading material can be achieved.
  • the device according to the invention has a passage for the spreading material, which is the liquid for moistening the spreading material from several sides is fed simultaneously.
  • a passage for the spreading material which is the liquid for moistening the spreading material from several sides is fed simultaneously.
  • the liquid supplied via the feed line then flows through the openings or nozzles into the passage and mixes with the flow of scattering material passed through the passage. That way uniform wetting of the spreading material can be achieved.
  • the device according to the invention is comparable to an annular nozzle.
  • the term is therefore also used below "Ring nozzle” used.
  • the spreading material is usually from a spreading material container, a downpipe or a chute, through which the spreading material follows gravity is fed to the spreading disc.
  • the ring nozzle can be beneficial to everyone anywhere between the spreading plate and the upper feed opening of the Downpipe or the slide can be provided.
  • the arrangement is particularly advantageous the ring nozzle directly at the feed opening, d. H. at the upper end of the downpipe, since then a further mixing of the spreading material with brine takes place over the entire fall distance.
  • the downpipe does not necessarily have to be vertical, but can be wholly or partially inclined and one Form a slide.
  • An advantageous embodiment of the ring nozzle has between the openings or nozzles and the liquid supply line at least one hollow chamber, that surrounds the passage.
  • the liquid is then fed to the hollow chamber and can be distributed in the hollow chamber around the passage, so that they pass through all openings or nozzles simultaneously and with the same pressure flows into the passage.
  • the liquid preferably flows into the passage in the radial direction, so that the individual nozzle jets in the case of sufficient jet pressure Center of the hollow chamber meet and the liquid accordingly atomized and / or swirled.
  • This effect is maximal if each two nozzles are arranged diametrically opposite each other because the Liquid jets then meet vertically.
  • the radial alignment The advantage of the nozzles is that the amount of spreading material comes into contact as soon as they come into contact with the liquid penetrated into the inside of liquid becomes.
  • a particularly simple construction provides that the openings or nozzles as holes in a wall of the passage or in a Wall of the hollow chamber surrounding the passage are formed.
  • the beam width then essentially depends on the opening diameter Number of openings on the circumference of the passage and the height of the Liquid column in the hollow chamber.
  • the hollow chamber can too be pressurized so that the jet width is not from the liquid column but depends on the pressure applied to the liquid from the outside.
  • nozzle rings Preferably, several groups of openings or nozzles are around the Passage arranged distributed and each form a nozzle ring.
  • the nozzle rings can be spaced apart in the direction of the spreading material be d. H. can be arranged one above the other, and / or can thereby distinguish from each other that the nozzles of a nozzle ring one have a different diameter than the nozzles of another nozzle ring.
  • the diameter of the Nozzles of the lowest nozzle ring is smaller than the diameter of the nozzles one or more nozzle rings above. Because of the smaller ones Through openings, the liquid level rises in the lower part of the Hollow chamber starts relatively quickly, so that even with small quantities and accordingly small amounts of brine, a sufficiently high pressure is built up to inject the brine into the center of the ring nozzle. In particular it is prevented that the brine only runs down the ring wall.
  • the liquid is preferably fed to the hollow chamber via two or more supply connection points arranged uniformly around the circumference of the hollow chamber, so that the hollow chamber is as even as possible Fills liquid and the liquid accordingly from all nozzles Nozzle ring emerges with approximately the same jet pressure.
  • the supply connection points are preferably placed so that the liquid supplied is not immediate impinges on the nozzle outlet openings but preferably between the nozzles. This serves for the favorable distribution of the liquid within of the ring, which is considered to be optimal when the liquid is connected to the supply line is introduced into the hollow chamber in the radial direction, so that they are perpendicular to the opposite cavity wall between the nozzle openings provided there.
  • a Baffle plate must be provided in front of the supply connection points.
  • FIG 1 is a schematic cross section of the side view of a spreader shown.
  • the spreading material is from a storage container, not shown by means of a suitable conveyor, for example a conveyor belt or a screw conveyor, through a feed channel 1 to the upper one End 2 of a down pipe 3 fed.
  • a suitable conveyor for example a conveyor belt or a screw conveyor
  • At the lower end 4 of the downpipe 3 occurs Spreading material and falls on a spreading material distributor in the form of one by one Rotation axis 5 rotating spreading plate 6, of which the spreading material by centrifugal force is dropped in the horizontal direction.
  • the downpipe 3 is telescopic to the device to different spreading vehicles to be able to adapt.
  • the slope of the downpipe can be more or less be as it is shown in Figure 1.
  • the use is also fundamental a completely vertical downpipe is not completely excluded, although the slipping effect of a down pipe inclined at least in the lower part a precise feeding of the spreading material onto the spreading plate 6 is facilitated.
  • the humidifier can also be under the lower end 4 of the downpipe 3 or at a point within the downpipe 3 be arranged.
  • the moistening device 8 has a wall 13 delimited by it Passage 12 on. It preferably comprises an annular hollow chamber 9, in which via two opposite supply lines 10 in the radial direction Liquid or brine is introduced. The brine then passes through nozzles 11 out of the hollow chamber 9 in the in this embodiment of the Wall 13 of the annular hollow chamber formed passage 12 in the direction the single arrows.
  • the openings 11 in the wall 13 of the passage 12 to initiate the Liquid in the passage 12, or the preferred nozzles, are through Holes are formed in the inner housing wall 13 of the hollow chamber 9.
  • the Nozzle openings 11 are at regular intervals around the inner housing wall 13 and distributed in several levels. Each group lying on one level of nozzles forms a nozzle ring.
  • the passage 12 shown in FIG. 1 has three such overlying nozzle rings, each with 8 nozzles Nozzle ring on.
  • the flow pressure with which the liquid, in particular brine, from the Hollow chamber 9 is pushed through the openings 11 depends essentially from the liquid column prevailing in the hollow chamber 9, which in turn depends on the amount of liquid supplied through the supply lines 10.
  • the nozzles 11 of the lower nozzle ring plane approximately inject as far into the passage 12 as the nozzles of the one above it Nozzle ring planes, the nozzles 11 have the lower nozzle ring plane a correspondingly smaller diameter, which reduces the throttling effect of these nozzles increased.
  • nozzle rings with different nozzle diameters are also possible to be provided in a common plane or other variations of the Nozzle ring arrangements and the nozzle diameter to make the Moisten the scattering material falling through the passage 12 optimize.
  • the nozzles 11 of the nozzle rings shown in FIG. 1 are located vertically one above the other.
  • the nozzle rings could also be used Purposes of moistening the nozzle spreading material more evenly by a certain amount Angle offset from each other relative to the direction of spreading material be arranged.
  • the moistening device 8 shown in Figure 1 has three superimposed nozzle rings. Instead, you can only one or two or possibly more than three nozzle rings are provided his.
  • a moistening device equipped with three nozzle rings and a hollow chamber 9 is shown in further detail in Figure 2.
  • the hollow chamber 9 is again formed by two concentric hollow cylinders that pass through on both sides Cover rings 14, 15 are closed.
  • In the inner housing wall 13 were three nozzle rings in a simple manner using a pulling tool generated, of which only the nozzles 11 cut in the illustration are shown, which protrude into the passage 12 like a spout.
  • the flow direction of the grit through passage 12 is through a large one Arrow marked.
  • the nozzles 11 are radial to the direction of flow of the scattering material oriented, and two nozzles 11 of each nozzle ring are each other arranged diametrically opposite, so that those emerging from the nozzles 11 Brine rays in the center of the passage 12 approximately perpendicular to one another to meet.
  • FIG 3 the humidification device 8 in plan view shows. Only two nozzle rings are shown in Figure 3, so that each other are offset that viewed in plan view each nozzle of the one nozzle ring exactly between two nozzles of the other nozzle ring. to are a better illustration of the different position of the nozzle rings the two nozzle rings in Figure 3 and those emerging from the respective nozzles Brine beams are shown differently, namely once in solid lines Lines and another time in dash lines.
  • the special advantage of is perpendicular to each other, radially aligned nozzle arrangement to be seen in the fact that maximum swirling of the injected brine is achieved becomes.
  • the nozzle rings in Figure 3 each have eight equally spaced from each other Nozzles on. Of course, more or fewer nozzles can also be used be distributed around the circumference of the passage. However, at eight over the Nozzles distributed around the circumference a relatively uniform moistening of grit can be achieved, in particular with a passage width of approximately 145 mm. The passage should not exceed a width of 200 mm and of Do not fall below 100 mm.
  • the nozzles 11 of the lower nozzle ring form one have smaller passage diameters than the nozzles 11 of the upper one Nozzle ring.
  • diameters between 1.5 mm and 10 mm suitable.
  • Good results have been obtained when the diameter of the Nozzles of the upper nozzle ring was about twice the diameter of the lower nozzle ring, in particular a diameter ratio of 6 mm to 3 mm.
  • the diameter of the nozzles of the intermediate nozzle ring does not necessarily have to be between these two values.
  • Good results have also been achieved, for example, when the nozzle of the middle one Nozzle ring the same diameter of 6 mm as the nozzles of the possessed upper nozzle ring.
  • the two feed lines 10 are diametrically opposite each other.
  • the two feed lines 10 are diametrically opposite each other.
  • the connection points of the feed lines 10 to the hollow chamber 9 of the moistening device 8 are chosen so that the supplied liquid against the inner Housing wall 13 of the hollow chamber 9 injected between two nozzles 11, so that it can distribute itself evenly in the hollow chamber 9 and not immediately exits through one of the nozzles.
  • the liquid is usually mixed with a Pressure of 2 bar and a delivery volume between 0 and 100 liters / min pumped into the hollow chamber 9, however, comes essentially without pressure there on.
  • the liquid pressure in the hollow chamber 9 is determined alone, as already described by the prevailing liquid level.
  • the cross section the passage 12 may not be circular.
  • it can also be one have a square or rectangular or oval cross section.
  • the Wall 13 of the passage 12 can also have a constriction, so that the passage 12 is also nozzle-shaped.
  • Hollow chamber 9 it is possible to Hollow chamber 9 to fill completely with liquid and the pressure within the Varying chamber 9 to vary the flow rate through the nozzles 11 to influence.
  • each individual nozzle 11 or to supply liquid separately to a group of selected nozzles so that the hollow chamber 9 around the passage 12 can be dispensed with.
  • All or one Part of the openings or nozzles 11 can also be designed such that they generate strong diverging jets or a spray.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)
  • Coating Apparatus (AREA)
  • Special Spraying Apparatus (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP03026873A 2002-11-26 2003-11-24 Dispositif d'épandage avec dispositif d'humidification du matériau épandable Expired - Lifetime EP1424449B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10255101 2002-11-26
DE10255101A DE10255101A1 (de) 2002-11-26 2002-11-26 Streuvorrichtung und Streustoffanfeuchtungsvorrichtung dafür

Publications (3)

Publication Number Publication Date
EP1424449A2 true EP1424449A2 (fr) 2004-06-02
EP1424449A3 EP1424449A3 (fr) 2005-01-26
EP1424449B1 EP1424449B1 (fr) 2010-08-18

Family

ID=32240436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03026873A Expired - Lifetime EP1424449B1 (fr) 2002-11-26 2003-11-24 Dispositif d'épandage avec dispositif d'humidification du matériau épandable

Country Status (3)

Country Link
EP (1) EP1424449B1 (fr)
AT (1) ATE478199T1 (fr)
DE (2) DE10255101A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1775387B1 (fr) 2005-10-13 2016-12-07 Küpper-Weisser GmbH Véhicule d'épandage pour service d'hiver
DE102012012146B4 (de) * 2012-06-20 2017-07-13 Nutreon Engineering GmbH Mischen und/oder Dispergieren mithilfe eines Sprühteppichs aus einer fließfähigen Masse

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2656371A1 (de) 1975-12-15 1977-06-16 Anton Kahlbacher Vorrichtung zum verteilen von, die griffigkeit von verkehrsflaechen erhoehendem material
DE19845083A1 (de) 1998-09-30 2000-04-27 Epoke A S Alfred Thomsen Vejen Verfahren und Vorrichtung zur Verteilung von Taumitteln
DE10007926A1 (de) 2000-02-21 2001-09-06 Kuepper Weisser Gmbh Streuvorrichtung mit einem Zwischenbehälter zum Ausbringen von flüssigem Streugut

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419654A (en) * 1992-09-25 1995-05-30 Kleiger; Scott P. Vehicle for road repair and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2656371A1 (de) 1975-12-15 1977-06-16 Anton Kahlbacher Vorrichtung zum verteilen von, die griffigkeit von verkehrsflaechen erhoehendem material
DE19845083A1 (de) 1998-09-30 2000-04-27 Epoke A S Alfred Thomsen Vejen Verfahren und Vorrichtung zur Verteilung von Taumitteln
DE10007926A1 (de) 2000-02-21 2001-09-06 Kuepper Weisser Gmbh Streuvorrichtung mit einem Zwischenbehälter zum Ausbringen von flüssigem Streugut

Also Published As

Publication number Publication date
DE50312997D1 (de) 2010-09-30
ATE478199T1 (de) 2010-09-15
EP1424449B1 (fr) 2010-08-18
EP1424449A3 (fr) 2005-01-26
DE10255101A1 (de) 2004-06-03

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