EP1441074A2 - Verfahren zur Verteilung von mit Flüssigkeit vermengtem Streustoff und Vorrichtung zur Durchführung des Verfahrens - Google Patents
Verfahren zur Verteilung von mit Flüssigkeit vermengtem Streustoff und Vorrichtung zur Durchführung des Verfahrens Download PDFInfo
- Publication number
- EP1441074A2 EP1441074A2 EP04000462A EP04000462A EP1441074A2 EP 1441074 A2 EP1441074 A2 EP 1441074A2 EP 04000462 A EP04000462 A EP 04000462A EP 04000462 A EP04000462 A EP 04000462A EP 1441074 A2 EP1441074 A2 EP 1441074A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spreading
- liquid
- brine
- carpet
- reduced
- 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
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000007480 spreading Effects 0.000 title claims description 163
- 230000008569 process Effects 0.000 title description 3
- 239000008187 granular material Substances 0.000 title 1
- 239000000463 material Substances 0.000 claims description 57
- 239000012267 brine Substances 0.000 claims description 36
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 17
- 150000003839 salts Chemical class 0.000 claims description 17
- 230000001419 dependent effect Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract 6
- 239000012530 fluid Substances 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 description 23
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 235000011148 calcium chloride Nutrition 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- -1 salt salt Chemical class 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 method for distributing liquid mixed Spreading material, especially of road salt mixed with brine, by means of a rotating spreading disc and a device for performing the Process.
- Road salt and brine are usually in a weight ratio of 70% to 30% directed onto a rotating spreading disc and due to the effect on it Centrifugal forces thrown off the spreading disc.
- a crescent moon is formed Spread pattern if the spreading disc is not moved forward (DE 40 39 795 C1, Fig. 4; DE 100 43 463 A1).
- By moving the Spreading device usually on the loading area of a winter service vehicle is mounted, a so-called "scatter carpet" is created.
- the structure of the the spreading device described in DE 100 43 463 A1 is for the purposes of present invention particularly suitable, and in so far the content of this Document also made the subject of the present application.
- de-icing salt is essential for the Preventive scattering, i.e. spreading on dry traffic areas. Adhesion of moist grit on dry roads is much higher than that of dry grit, so that the salt grains thrown onto the traffic area jump less far and therefore be distributed more controlled.
- a basic concern when spreading spreading material is to produce a spreading carpet that is as uniform as possible, ie a spreading carpet that has a spreading density s D that is as constant as possible over the entire spreading width b.
- the scattering material distribution is influenced by numerous boundary conditions.
- the measures proposed in the past are correspondingly numerous to positively influence the spreading material distribution. Numerous suggestions deal, for example, with the design of the spreading disc (DE 40 39 795 C1, DE 100 43 463 A1), others with the type and location of the feed of salt and brine to the spreader plate (DE 39 37 675 C2, DE 44 29 188 A1).
- the scatter pattern changes significantly when the scatter parameters are changed. If, for example, you change the spreading quantity Q in such a way that the spreading disc has to distribute significantly more spreading material per unit of time, and / or if you change the spreading width b by rotating the spreading disc at a higher speed n T , these changes have an immediate effect Spread pattern.
- the crescent-shaped scattering pattern not only shifts to the side, but also within the crescent-shaped contour, the distribution of the scattering material changes. When the spreading device moves forward, a correspondingly inhomogeneous distribution of the spreading material then occurs over the width of the spreading carpet.
- an increase in the spread rate Q as well as an increase in the rotational speed n T lead to a shift of the spreading carpet towards the edge of the road when the turntable rotates clockwise when viewed from above. This can be corrected by adjusting the turntable to the extent that the spreading carpet again covers the desired spreading width of the pavement. Due to the changed spreading material distribution within the crescent-shaped contour, there is nevertheless a transverse distribution of the spreading material in the spreading carpet, which increases towards the edge of the road. With low spreading quantities Q and also at low speeds n T , this effect can be observed in the opposite direction.
- the object of the present invention is now to spread the spreading material the spreading carpet width even with changing spreading parameters, in particular with changing spread rate and / or spread width, as constant as possible hold.
- This object is achieved according to the invention by the ratio of the liquid or amount of brine to the amount of grit depending on at least a scattering parameter influencing the spreading material distribution of the spreading carpet is adjusted.
- Spreading parameters are in particular those variable influencing quantities which are predetermined from the outside and have an effect on the scattering image, such as the predetermined spreading quantity Q, spreading density s D (has a v for a given vehicle speed and road carpet width b directly to the grit amount Q from) v running speed ( acts at a specified spreading density s D and spreading carpet width also b directly to the grit amount Q of) spreading width b (acting at a specified spreading density s D and traveling speed also v directly from on Q) and scatter creator speed n T (directly depends on the adjusted spreading width b from).
- the predetermined spreading quantity Q spreading density s D (has a v for a given vehicle speed and road carpet width b directly to the grit amount Q from)
- v running speed acts at a specified spreading density s D and spreading carpet width also b directly to the grit amount Q of
- spreading width b acting at a specified spreading density s D and traveling speed also v directly from on Q
- the type of grit can also be seen as a variable variable influencing the scatter pattern, in particular the granularity of the grit, such as coarse-grained rock salt on the one hand and much more fine-grained salt salt on the other.
- externally specified variables are the temperature of the spreading material, which is usually dependent on the ambient temperature, the moisture level of the road or the salt, and the like, because this can also change the spreading behavior of the spreading material and, consequently, the spreading pattern.
- the invention is based on the fact that the spreading material distribution within the spread pattern can be influenced by suitable adaptation of the brine-spreading material ratio in such a way that when one or more spreading parameters change, in particular when Q or n T changes , the changes under normal circumstances lead to a change Transverse distribution of the spreading material within the crescent-shaped spread pattern, this changed transverse distribution can be traced back to an approximately homogeneous transverse distribution of the spreading material: Admittedly, this also does not result in ideal conditions. Nevertheless, the results achieved in this way represent a significant improvement over the currently prevailing technology, which always works with a constant brine-to-grit ratio of usually 30% to 70%.
- n T At a relatively low speed n T, a correspondingly lower centrifugal force acts on the spreading material, so that it remains longer on the turntable and is accordingly thrown off later.
- the longer dwell time therefore leads to the spreading carpet being shifted to the center of the lane, but at the same time also to the spreading material sticking and clumping on the spreading disc before it has left the spreading disc.
- an increased brine content has a lubricant effect, which leads to an earlier release and to prevent the cluster material from clumping.
- the change in the spreading material distribution caused by the relatively low speed n T is thereby at least partially corrected again.
- this parameter changes with the given spreading width b or spreading disc speed n T and the given spreading density s D with the speed v of the spreading vehicle.
- the brine has a special function as Lubricant is added to the spreading disc and that due to the amount of brine the flight properties of the spreading material are also influenced. Because the brine portion is usually much larger than it is - as mentioned at the beginning - would be theoretically necessary, can by changing the brine volume Influence the spreading pattern significantly, without the necessary degree of moistening is significantly affected by this.
- the moisture better binds as a coarse-grained scattering material, such as rock salt.
- This behavior is on the relatively larger surface to be wetted the fine-grained Scattering materials returned. Accordingly, it is advantageous to fine-grained Spreading spreading materials with relatively more liquid than coarse-grained spreading materials. Because of the associated dilution of the fine-grained saline salt its thawing effect is reduced, but this is being considered acceptable spreading result.
- the only attached figure shows the dependence of the optimal brine fraction on the one hand on the spreading width b, which is directly dependent on the spreading disc speed n T, and on the other hand on the spreading quantity Q , which in turn is dependent on the spreading density s D of the driving speed v and the spreading width b.
- the result is a three-dimensional family of curves that forms a curved surface. It can be seen that with a constant spreading quantity Q, the optimum brine fraction, expressed in percent by weight, decreases as the spreading width b or spreading disc speed n T increases. Correspondingly, it can be seen that with a constant spreading width b or spreading disc speed n T, the optimum brine fraction decreases when the spreading quantity Q increases, for example due to an increase in the driving speed.
- the dependence of the optimal brine fraction is not shown in this figure of other influencing factors, such as. B. of spreading disc radius, wing length, - Height, direction of extension and in particular of the granularity.
- the curved surface shown in the figure was determined for rock salt, which had an average grain diameter of 2 mm, where 95% of the grains were in a diameter range of 0.16 to 5 mm.
- the grain size of saline salt is significantly lower.
- Has a typical salt of salt for example, an average grain diameter of only about 0.6 mm, wherein over 90% of the grains in a diameter range from 0.3 to 0.9 mm lie.
- a spreading device for performing the above-described method includes, apart from the rotating spreading disc and apart from one Device for feeding the spreading material and the liquid to the rotating one Scatter plate, a control device with which the ratio of Amount of liquid to amount of scattering material depending on one or more of the Spreading material distribution of influencing factors influencing the spreading carpet can be set is. This is easily possible using digital technology.
- the operator in the driver's cab of a winter service spreading vehicle sets the spreading width b of the spreading carpet on the one hand and the spreading density s D with which the spreading carpet is to be distributed on the traffic area on the other hand. From these two specifications, taking into account the automatically detected vehicle speed v, the quantity Q which is supplied to the spreading plate by the feed device per unit of time is determined in a computer-assisted manner. The corresponding spreading disc speed n T is also automatically determined and set from the predefined spreading width b.
- the information “spreading width b” and “spreading quantity Q ” are thus already available in the control device, so that the optimum amount of brine to be supplied to the spreading material can be derived on the basis thereof by comparison with the family of curves stored in a digital memory according to the figure. Instead of the family of curves, only a correspondingly large number of setting values can be stored.
- the brine supply is then adjusted according to the determined optimum value by means of suitable measures familiar to the person skilled in the art and, in the case of changing influencing variables (spreading quantity Q, spreading width b, scattering material grain size, ...) throttled or increased accordingly.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Fertilizers (AREA)
- Seasonings (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
Claims (10)
- Verfahren zur Verteilung von mit Flüssigkeit vermengtem Streustoff mittels einem rotierenden Streuteller zur Erzeugung eines Streuteppichs mit möglichst homogener Streustoffverteilung, wobei der Streustoff und die Flüssigkeit dem Streuteller zugeführt und von diesem abgeschleudert werden, während der Streuteller vorwärts bewegt wird, dadurch gekennzeichnet, dass das Verhältnis von Flüssigkeitsmenge zu Streustoffmenge abhängig von mindestens einem die Streustoffverteilung des Streuteppichs beeinflussenden Parameter, wie insbesondere die Streumenge Q und/oder die Streubreite b und/oder die Streustoffkörnigkeit, eingestellt wird.
- Verfahren nach Anspruch 1, wobei der Flüssigkeitsanteil erhöht wird, wenn die Streumenge Q reduziert wird und umgekehrt.
- Verfahren nach Anspruch 1 oder 2, wobei der Flüssigkeitsanteil erhöht wird, wenn die Streubreite b reduziert wird, und umgekehrt.
- Verfahren nach einem der Ansprüche 1 bis 3, wobei der Flüssigkeitsanteil erhöht wird, wenn die Streustoffkörnigkeit reduziert wird und umgekehrt.
- Verfahren nach einem der Ansprüche 1 bis 4, wobei als Flüssigkeit Sole und als Streustoff Streusalz eingesetzt werden.
- Vorrichtung zum Verteilen von mit Flüssigkeit vermengtem Streustoff zur Erzeugung eines Streuteppichs mit möglichst homogener Streustoffverteilung umfassend einen rotierenden Streuteller, eine Vorrichtung zum Zuführen des Streustoffs und der Flüssigkeit zum rotierenden Streuteller derart, dass der Streustoff mit der Flüssigkeit vom rotierenden Streuteller abgeschleudert werden, um beim Vorwärtsbewegen des Streutellers einen Streuteppich erzeugen zu können, gekennzeichnet durch eine Steuerungseinrichtung, mit welcher das Verhältnis von Flüssigkeitsmenge zu Streustoffmenge abhängig von mindestens einem die Streustoffverteilung beeinflussenden Parameter eingestellt wird, wie insbesondere die Streumenge Q und/oder die Streubreite b und/oder die Streustoffkörnigkeit.
- Vorrichtung nach Anspruch 6, wobei der Flüssigkeitsanteil erhöht wird, wenn die Streumenge Q reduziert wird, und umgekehrt.
- Vorrichtung nach Anspruch 6 oder 7, wobei der Flüssigkeitsanteil erhöht wird, wenn die Streubreite b reduziert wird, und umgekehrt.
- Vorrichtung nach einem der Ansprüche 6 bis 8, wobei der Flüssigkeitsanteil erhöht wird, wenn die Streustoffkörnigkeit reduziert wird und umgekehrt.
- Vorrichtung nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass es sich um eine Vorrichtung zum Ausstreuen von mit Sole vermengtem Streusalz für ein Winterdienstfahrzeug handelt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10301285A DE10301285A1 (de) | 2003-01-15 | 2003-01-15 | Verfahren zur Verteilung von mit Flüssigkeit vermengten Streustoff und Vorrichtung zur Durchführung des Verfahrens |
DE10301285 | 2003-01-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1441074A2 true EP1441074A2 (de) | 2004-07-28 |
EP1441074A3 EP1441074A3 (de) | 2005-04-06 |
EP1441074B1 EP1441074B1 (de) | 2009-05-13 |
Family
ID=32519976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04000462A Expired - Lifetime EP1441074B1 (de) | 2003-01-15 | 2004-01-12 | Verfahren zur Verteilung von mit Flüssigkeit vermengtem Streustoff und Vorrichtung zur Durchführung des Verfahrens |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1441074B1 (de) |
AT (1) | ATE431464T1 (de) |
DE (2) | DE10301285A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006000241A1 (de) * | 2004-06-25 | 2006-01-05 | Küpper-Weisser GmbH | Verfahren zur verteilung von mit flüssigkeit vermengtem streustoff und vorrichtung zur durchführung des verfahrens |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005026325A1 (de) * | 2005-06-07 | 2006-12-14 | Schmidt Holding Gmbh | Winterdienstfahrzeug |
DE102021130515A1 (de) | 2021-11-22 | 2023-05-25 | Küpper-Weisser GmbH | Verfahren und Vorrichtung zur Verteilung von Streustoffen |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1279707B (de) | 1962-08-10 | 1968-10-10 | Inh Anton Schroeder | Vorrichtung zum dosierten Aufstreuen von Aufstausalzen in Form eines aus Wasser und Auftausalz gebildeten Salzbreis auf Verkehrsflaechen |
DE2632794B1 (de) | 1976-07-21 | 1977-12-29 | Weisser Hubert Kg | Salzstreugeraet mit streugutbefeuchtungseinrichtung fuer ein fahrzeug |
DE8913447U1 (de) | 1989-11-14 | 1990-02-01 | Biere, Adolf, 2720 Rotenburg, De | |
DE3937675C2 (de) | 1989-11-13 | 1992-03-05 | Kuepper-Weisser Gmbh, 7715 Braeunlingen, De | |
DE4039795C1 (de) | 1990-12-13 | 1992-03-12 | Kuepper-Weisser Gmbh, 7715 Braeunlingen, De | |
DE4109366A1 (de) | 1991-03-22 | 1992-09-24 | Pietsch Max Kg Gmbh & Co | Verfahren zum streuen von festen und fluessigen streustoffen fuer den winterdienst und einrichtung zur durchfuehrung des verfahrens |
DE4429188A1 (de) | 1994-08-18 | 1996-03-14 | Beilhack Maschf Martin | Streuvorrichtung und Streuverfahren für granuliertes und flüssiges Streugut |
DE19845083A1 (de) | 1998-09-30 | 2000-04-27 | Epoke A S Alfred Thomsen Vejen | Verfahren und Vorrichtung zur Verteilung von Taumitteln |
DE10043463A1 (de) | 2000-09-04 | 2002-03-14 | Kuepper Weisser Gmbh | Winterdienst-Streugerät und Streuteller für Winterdienst-Streugerät |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4210690C1 (de) * | 1992-04-01 | 1993-09-23 | Schmidt Winterdienst- Und Kommunaltechnik Gmbh, 79837 St Blasien, De | |
SE501330C2 (sv) * | 1993-05-14 | 1995-01-16 | Joergen Gustafsson | Metod vid och anordning för spridning av vägsalt |
-
2003
- 2003-01-15 DE DE10301285A patent/DE10301285A1/de not_active Withdrawn
-
2004
- 2004-01-12 EP EP04000462A patent/EP1441074B1/de not_active Expired - Lifetime
- 2004-01-12 AT AT04000462T patent/ATE431464T1/de active
- 2004-01-12 DE DE502004009474T patent/DE502004009474D1/de not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1279707B (de) | 1962-08-10 | 1968-10-10 | Inh Anton Schroeder | Vorrichtung zum dosierten Aufstreuen von Aufstausalzen in Form eines aus Wasser und Auftausalz gebildeten Salzbreis auf Verkehrsflaechen |
DE2632794B1 (de) | 1976-07-21 | 1977-12-29 | Weisser Hubert Kg | Salzstreugeraet mit streugutbefeuchtungseinrichtung fuer ein fahrzeug |
DE3937675C2 (de) | 1989-11-13 | 1992-03-05 | Kuepper-Weisser Gmbh, 7715 Braeunlingen, De | |
DE8913447U1 (de) | 1989-11-14 | 1990-02-01 | Biere, Adolf, 2720 Rotenburg, De | |
DE4039795C1 (de) | 1990-12-13 | 1992-03-12 | Kuepper-Weisser Gmbh, 7715 Braeunlingen, De | |
DE4109366A1 (de) | 1991-03-22 | 1992-09-24 | Pietsch Max Kg Gmbh & Co | Verfahren zum streuen von festen und fluessigen streustoffen fuer den winterdienst und einrichtung zur durchfuehrung des verfahrens |
DE4429188A1 (de) | 1994-08-18 | 1996-03-14 | Beilhack Maschf Martin | Streuvorrichtung und Streuverfahren für granuliertes und flüssiges Streugut |
DE19845083A1 (de) | 1998-09-30 | 2000-04-27 | Epoke A S Alfred Thomsen Vejen | Verfahren und Vorrichtung zur Verteilung von Taumitteln |
DE10043463A1 (de) | 2000-09-04 | 2002-03-14 | Kuepper Weisser Gmbh | Winterdienst-Streugerät und Streuteller für Winterdienst-Streugerät |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006000241A1 (de) * | 2004-06-25 | 2006-01-05 | Küpper-Weisser GmbH | Verfahren zur verteilung von mit flüssigkeit vermengtem streustoff und vorrichtung zur durchführung des verfahrens |
Also Published As
Publication number | Publication date |
---|---|
DE502004009474D1 (de) | 2009-06-25 |
EP1441074B1 (de) | 2009-05-13 |
EP1441074A3 (de) | 2005-04-06 |
DE10301285A1 (de) | 2004-07-29 |
ATE431464T1 (de) | 2009-05-15 |
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