EP1424449A2 - Streuvorrichtung und Streustoffanfeuchtungsvorrichtung dafür - Google Patents
Streuvorrichtung und Streustoffanfeuchtungsvorrichtung dafür Download PDFInfo
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims description 41
- 230000005484 gravity Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000012267 brine Substances 0.000 description 17
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 17
- 150000003839 salts Chemical class 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Images
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)
Abstract
Description
Claims (21)
- Streustoffanfeuchtungsvorrichtung (8) umfassend:einen Durchgang (12) zum Hindurchleiten des Streustoffs,mindestens eine Zuleitung (10) zum Zuleiten von Flüssigkeit zum Durchgang,mindestens eine Gruppe von Öffnungen (11), die um den Durchgang (12) herum verteilt sind und mit der mindestens einen Zuleitung (10) derart verbunden sind, dass von der mindestens einen Zuleitung (10) zugeleitete Flüssigkeit durch die Öffnungen (11) hindurch in den Durchgang (12) hineinströmt.
- Vorrichtung nach Anspruch 1, wobei die Düsen (11) zum Zentrum des Durchgangs (12) so ausgerichtet sind, dass sich einzelne Düsenstrahlen im Durchgang treffen.
- Vorrichtung nach Anspruch 1 oder 2 des weiteren umfassend eine zwischen den Öffnungen (11) und der mindestens einen Zuleitung (10) angeordnete Hohlkammer (9), die den Durchgang (12) mindestens teilweise umgibt.
- Vorrichtung nach Anspruch 3, wobei die Öffnungen (11) durch Löcher in einer Gehäusewandung (13) der Hohlkammer (9) gebildet sind.
- Vorrichtung nach Anspruch 4, wobei die Düsenöffnungen tüllenartig in den Durchgang hineinragen.
- Vorrichtung nach einem der Ansprüche 3 bis 5, wobei mindestens zwei gleichmäßig um den Umfang der Hohlkammer (9) verteilte Anschlußstellen für die Zuleitungen (10) vorgesehen sind.
- Vorrichtung nach Anspruch 4 oder 5 oder nach Anspruch 6 mit 3, wobei die Anschlußstelle/n für die mindestens eine Zuleitung (10) an der Hohlkammer (9) so plaziert ist/sind, dass durch die mindestens eine Zuleitung zugeleitete Flüssigkeit auf die die Öffnungen (11) aufweisende Gehäusewandung (13) der Hohlkammer (9) zwischen den Öffnungen (11) auftrifft.
- Vorrichtung nach Anspruch 7, wobei die mindestens eine Zuleitung (10) so an die Hohlkammer (9) angeschlossen ist, dass die Flüssigkeit zur Hohlkammer (9) in radialer Richtung relativ zur Streustoffdurchleitrichtung zuführbar ist.
- Vorrichtung nach einem der Ansprüche 1 bis 8, wobei jeweils zwei Öffnungen (11) einander diametral gegenüberliegend angeordnet sind.
- Vorrichtung nach einem der Ansprüche 1 bis 9, wobei die Öffnungen (11) gleichmäßig um den Durchgang (12) herum angeordnet sind.
- Vorrichtung nach einem der Ansprüche 1 bis 10, wobei mehrere Gruppen von Öffnungen (11) vorgesehen sind, die so um den Durchgang (12) verteilt sind, dass jede dieser mehreren Gruppen von Öffnungen (11) einen Düsenkranz bildet.
- Vorrichtung nach Anspruch 11, wobei der Austrittsdurchmesser der Öffnungen (11) eines ersten Düsenkranzes größer ist als der Austrittsdurchmesser der Öffnungen (11) eines zweiten Düsenkranzes.
- Vorrichtung nach Anspruch 11 oder 12, wobei die Düsenkränze in Richtung der Streustoffdurchleitung voneinander beabstandet sind.
- Vorrichtung nach Anspruch 12, wobei der erste Düsenkranz mit den Öffnungen größeren Durchmessers in Richtung der Streustoffdurchleitung vor dem zweiten Düsenkranz mit den Öffnungen kleineren Durchmessers angeordnet ist.
- Vorrichtung nach einem der Ansprüche 11 bis 14, wobei jeder Düsenkranz mindestens'drei, vorzugsweise acht, Öffnungen umfaßt.
- Vorrichtung nach einem der Ansprüche 11 bis 15 mit drei oder mehr Düsenkränzen.
- Vorrichtung nach Anspruch 16, wobei die Öffnungen einen Durchmesser zwischen 1,5 mm und 10 mm besitzen, insbesondere zwischen 3 mm und 6 mm.
- Vorrichtung nach einem der Ansprüche 13 bis 17, wobei der Abstand zwischen zwei benachbarten Düsenkranzebenen zwischen 10 mm und 50 mm, vorzugsweise etwa 15 mm beträgt.
- Streuvorrichtung umfassend eine Streustoffanfeuchtungsvorrichtung nach einem der Ansprüche 1 bis 18, ein mit dem Durchgang (12) der Streustoffanfeuchtungsvorrichtung (8) verbundenes Fallrohr (3) oder Rutsche, durch welche hindurch der Streustoff der Schwerkraft folgend leitbar ist, und einen Streustoffverteiler (6) zum Verstreuen des durch das Fallrohr (3) und die Streustoffanfeuchtungsvorrichtung (8) hindurchgeleiteten Streustoffs.
- Streuvorrichtung nach Anspruch 19, wobei die Streustoffanfeuchtungsvorrichtung (8) im Bereich eines oberen Endes (2) des Fallrohrs (3) bzw. der Rutsche angeordnet ist.
- Streustoffvorrichtung nach Anspruch 19 oder 20, wobei der Durchgang (12) im Bereich der Öffnungen (11) eine Weite zwischen 100 mm bis 200 mm, insbesondere etwa 145 mm, aufweist.
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 (de) | 2004-06-02 |
| EP1424449A3 EP1424449A3 (de) | 2005-01-26 |
| EP1424449B1 EP1424449B1 (de) | 2010-08-18 |
Family
ID=32240436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03026873A Expired - Lifetime EP1424449B1 (de) | 2002-11-26 | 2003-11-24 | Streuvorrichtung mit Streustoffanfeuchtungsvorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1424449B1 (de) |
| AT (1) | ATE478199T1 (de) |
| DE (2) | DE10255101A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1775387B1 (de) | 2005-10-13 | 2016-12-07 | Küpper-Weisser GmbH | Winterdienststreuvorrichtung |
| DE102012012146B4 (de) * | 2012-06-20 | 2017-07-13 | Nutreon Engineering GmbH | Mischen und/oder Dispergieren mithilfe eines Sprühteppichs aus einer fließfähigen Masse |
Citations (3)
| 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)
| 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 |
-
2002
- 2002-11-26 DE DE10255101A patent/DE10255101A1/de not_active Withdrawn
-
2003
- 2003-11-24 AT AT03026873T patent/ATE478199T1/de active
- 2003-11-24 DE DE50312997T patent/DE50312997D1/de not_active Expired - Lifetime
- 2003-11-24 EP EP03026873A patent/EP1424449B1/de not_active Expired - Lifetime
Patent Citations (3)
| 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 (de) | 2010-08-18 |
| EP1424449A3 (de) | 2005-01-26 |
| DE10255101A1 (de) | 2004-06-03 |
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