EP2787121A2 - Method for processing the substructure located under the track of a railway section - Google Patents

Abstract

A method for refurbishing the substructure material located under the track 1 of a railway track provides for a dismounting work cart 3 as well as a plurality of module-like refurbishment work cart 8, 9 downstream of this dismounting work cart 3. In this work-up work cart 8, 9, the removed substructure material 2 is successively fractionated differently and worked up.

Description

The invention relates to a method for refurbishing the substructure material located under the track of a railway track.

The substructure materials are to be understood in the most general sense. In particular, the substructure materials are gravel, soil material, earth masses, etc.

Likewise, the working up of this substructure material is to be understood in the most general sense. In particular, the substructure material is fractionated in the sense of the workup according to the invention, separated, purified, worked up, etc.

The substructure materials in railway lines are subject to wear over the years due to mechanical stress. Thus, the original Neophyte undergoes changes in its grain size and in its grain composition by grinding and smashing changes. This increases the fines content, in conjunction with a natural organic and chemical pollution. This means that the ballast mixture must be regularly subjected to a cleaning process. Thus, the ballast is subjected to a mechanical fines cleaning at a achieved fine fraction of 20 to 30% in the rule. In concrete terms, this means that if the fine fraction of the grain (less than about 22 mm) is 20 to 30% of the total ballast fraction, a ballast cleaning is required. The fine fraction of 20 to 30% is lost ballast, which is caused by the non-reusable ballast masses in the ballast cleaning. This loss gravel must be compensated by supplying Neuschotter.

In the usual ballast cleaning measures, in which only the ballast is cleaned and replaced, the above fine fraction is always disposed of. The fines are spent by means of rail cars or trucks to a disposal point or a refurbishment outside the track area. The fines must then be worked up or disposed of in a facility approved under the environmental guidelines.

Basically, there are the so-called MFS cars / MT cars on the market, which can bunker and transport materials on construction sites in the track construction sector. The cars are then used to material on the track axis in one direction or in different To transport work directions without having to leave the track restriction profile (clearance gauge) with the material.

There are still track-laying machines on the market that can pick up, clean and re-install the ballast to be excavated. In these commercially available ballast cleaning machines, the material within the overall machine is removed on one and the same work cart, cleaned and the cleaned track ballast material fed back to the existing track body. The waste material in the form of undersize and protection is transferred to so-called MFS cars for transport.

As stated, in the known ballast cleaning machines, the fine fraction is transferred to the so-called MFS / MT cars for final recycling and disposal. This means that a certain, not reinstallable as track ballast fine fraction (small grains and dirt and organic matter) of the ballast cleaning machine is obtained as waste for disposal. However, this waste, in and of itself, for use in other construction purposes, includes grain fractions in its resulting fine fraction mixture.

On the whole, this means that the fine fraction mixture obtained during the ballast cleaning process contains absolutely no longer usable fine components such as organic components (humus, abrasives, impurities, etc.), but also theoretically reusable materials such as rock fractions which are below the grain size according to DIN again to be installed ballast fraction. This means in the result that in the ballast cleaning with commercially available systems, the fine fraction with grain sizes smaller than about 22 mm is treated as waste.

Based on this, the object of the invention is to provide a method for working up the substructure material under the track of a railway line with greater effectiveness in the sense that more parts of the original substructure material can be reused after the workup.

The technical solution is characterized by the features of claim 1.

As a result, a method for refurbishing the under-track subway material is created, which is characterized by a high degree of effectiveness in the sense of maximum reuse of the refurbished substructure material. The inventive method is characterized by the use of a track-bound and above all modular work vehicle system. Under the modular system is to be understood that each work car defines an individual refurbishment module, without this work car has other tasks. In addition to the individual processing of the substructure material, the corresponding work car can of course also caching the material and / or further transport.

The basic idea of the method according to the invention for refurbishing the substructure material located under the track of a railway track is that a plurality of different refurbishment work trolleys are provided in succession, which separates the substructure material into different fractions in the context of the workup according to the invention. This means that with the processing work car set up in succession, the separated fraction size becomes larger and larger. This further means that the modular assembly of individual machines is used without interruption of the track-bound work flow for processing and for further processing according to the invention of the fines obtained during ballast cleaning. This means a total of a simple and targeted workup, separation and purification of incurred in the ballast cleaning fines, which would otherwise be supplied to the disposal. In concrete terms, this means that the fractions resulting from ballast cleaning, for example less than 22 mm, are processed in a track-bound working process. It is precisely those fine fractions which usually have to be disposed of or which have to be supplied to a work-up in an approved plant outside the track area. In this case, according to the invention, the above-described gravel shares are separated and processed one after the other. Here are the reworkable fines, such as the natural aggregate below the fraction of 22 mm separated and cleaned and made available for other purposes, while the no longer usable fines such as soil, humus, dirt, etc. are finally disposed of. This eliminates the disposal or processing of fine fraction fraction smaller than, for example, 22 mm at a track independent disposal or refurbishment. Only the non-reusable fines such as dirt, humus, organic soil and components, chemical contaminants, etc. must - as stated - be eliminated via a final disposal. The reusable fines already obtained during the removal in this way can be supplied to a direct utilization in the track area or a utilization outside of the track area. The amount of contaminated fines without qualitative usability is thereby greatly reduced. Thus, for example, natural rock fractions of the fine grained fraction up to the ballast boundary of 22 mm can again be used as marginal material, as drainage material or as substructure material or other filling material. In the worst case, the usable fines from the track construction measure but also a targeted utilization outside the track can be supplied. This eliminates a shipment and stationary workup at central places for the extracted raw materials throughout. Since the disposal costs depend directly on the load class of a disposal group, this results in immediate savings in the construction process.

Overall, therefore, the core idea of the method according to the invention in a variable processing of the substructure material with a fractionation and / or processing of ballast or soil materials within the process of overburden excavation.

According to the development in claim 2 ...

This means that the individual fractions obtained can be further treated in a variety of ways.

An advantageous development proposes according to claim 3, that at the end of the refurbishment work cart a refurbishment module is arranged. This means that the refurbishment module of the invention is at the end of the respective work car. This also means that at the end of the task of the work car, the refurbishment module is disposed within the conveyor line. In conventional work cars, the material is transported through conveyor belts in the roof area or abandoned by conveyor belts of the neighboring car. The use according to the invention of a work-up module at the point of application of an MFS wagon / MT wagon enables additional fractionation and processing of the existing fines without interruption of the working flow with little technical effort.

Preferably, according to the embodiment of claim 4, the refurbishment module in the roof area of the refurbishment work car is arranged.

A further development proposes according to claim 5, that the refurbishment module is part of a respect to the actual work-up truck separate roof rack, which is arranged as needed on the actual work-up work car. The basic idea here is that the entire roof rack can be removed with its processing module removable and replaced with another roof rack with another processing module of the work car. In this roof rack may alternatively be a roof rack without processing module, which has only standard conveyor belts. This means that the base work car can be used universally as such. It can thus be used as a normal work car for bunkering of materials and / or for the transport of materials, but also be used in the sense of the invention by replacing the roof rack such that a workup of the substructure material in the sense of the invention is possible.

The development according to claim 6 proposes that for the preparation of the substructure material this fractionated and possibly additionally cleaned. As a result, a simple and targeted separation, cleaning and processing of the resulting in the treatment fines are possible, which are usually supplied for disposal. Optionally - as stated - a washing, cleaning or otherwise processing of the fine fraction fraction is possible.

According to the embodiment in claim 7, a sieve is used for fractionating the substructure material. This means that the workup modules usually have a sieve and fractionation unit using a sieve grate to separate the desired grain. The sieve grates can also be designed as roller grates. The hole width of the mesh grates or the roller grate size is decisive for the fraction size. Basically, the mesh grids can be changed to vary the hole size of the screening and thus the desired Siebkörnung.

Finally, the development proposes according to claim 8, that the work trolley bottom conveyor belts, roof conveyor belts and end transfer belts have. In this case, both the bottom conveyor belts and the roof conveyor belts can have end-side transfer belts. This means that by means of conveyor belts of the work vehicle, a universal material transport from work car to work car is possible.

Fig. 1

eine schematische Ansicht eines Arbeitszuges mit verschiedenen Arbeitswagen;

Fig. 2a

eine Ansicht von Arbeitswagen zur Aufarbeitung des Unterbaumaterials;

Fig. 2b

ein Detailausschnitt aus Fig. 2a;

Fig. 3a

zwei verschiedene Ansichten eines Siebrostes;

Fig. 3b

zwei verschiedene Ansichten eines Rollenrostes;

Fig. 4

verschiedene Ansichten des Siebrostes mit aufgegebenem Unterbaumaterial;

Fig. 5

entsprechende Ansichten wie in Fig. 4, jedoch zusätzlich mit einer Wascheinrichtung;

Fig. 6a bis 6f

verschiedene Darstellungen zum Materialtransport zwischen zwei benachbarten Arbeitswagen;

Fig. 7a und 7b

- Darstellungen eines Arbeitswagens mit abnehmbarem Dachgestell.

Exemplary embodiments of the method according to the invention for refurbishing the substructure material located under the track of a railway track are described below with reference to the drawings. In these shows:

Fig. 1

a schematic view of a work train with different work cars;

Fig. 2a

a view of work cars for processing the substructure material;

Fig. 2b

a detail from Fig. 2a ;

Fig. 3a

two different views of a sieve grate;

Fig. 3b

two different views of a roller grate;

Fig. 4

different views of the sieve grate with abandoned substructure material;

Fig. 5

corresponding views as in Fig. 4 but additionally with a washing device;

Fig. 6a to 6f

various illustrations for material transport between two adjacent work cars;

Fig. 7a and 7b

- Representations of a work car with removable roof frame.

Fig. 1 shows a work train to rehabilitate a railway line. This railway consists of a track 1, which rests on a substructure material 2. This substructure material 2 consists essentially of gravel and underlying earth masses. Also, a layer protection layer is conceivable.

The work train initially has a track-bound expansion work cart 3 for removal and installation of the substructure material 2, in particular the ballast on. The expansion work cart 3 is optionally followed by a transfer work cart 4. The further provided intermediate bunker work cart 5 serve the intermediate bunking of materials. The adjoining additional work cart 6 serves for the separation and washing of the substructure material 2 in the case of lack of space as an extension of the subsequent modular cleaning work cart 7.

This is followed by the work-up work cars 8, 9 according to the invention and possibly further work-up work cars (not shown). The refurbishment work cars 8, 9 each have a refurbishment module 10 at one end, namely where the substructure material 2 to be processed is supplied. These refurbishment modules 10 may, in the most general sense, be a sieve 11, as it appears in FIG Fig. 3a as a grate and in Fig. 3b is shown as a roller grate.

• Das mittels des Ausbau-Arbeitswagens 3 ausgebildete Unterbaumaterial 2 wird nach Passieren der vorbeschriebenen Arbeitswagen zunächst dem Aufarbeitungs-Arbeitswagen 8 zugeführt. Als Transporteinrichtungen weisen die Arbeitswagen Bodenförderbänder 12, Dachförderbänder 13 sowie Übergabeförderbänder 14 an den Enden der Bodenförderbänder 12 sowie der Dachförderbänder 13 auf.

The operation is as follows:

• The substructure material 2 formed by means of the dismantling work cart 3, after passing through the above-described work trolleys, is first of the work-up work trolley 8 fed. As transport facilities, the work car floor conveyor belts 12, roof conveyor belts 13 and transfer conveyor belts 14 at the ends of the floor conveyor belts 12 and the roof conveyor belts 13.

The removed substructure material 2 is given up to the refurbishment module 10 of the refurbishment work cart 8. In this case, a first fractionation of the ballast is carried out via the screening device 11. As in Fig. 2b It can be seen that the larger gravel parts do not pass through the sieve device 11. Only the finer gravel parts pass through the sieve device 11 and are picked up by the first refurbishment work cart 8.

The ballast fraction, which has passed through the screening device 11 of the first work-up work car 8, passes via the roof conveyor belt 13 to the second work-up work car 9 and arrives at the work-up module 10 of this second work-up work car 9. Here, exactly the same thing happens; H. the screening device allows the corresponding fraction to pass, while the ballast material, which is not transmitted through the screening device 11, is transported further and possibly fed to a further processing work cart. The passage size of the screening device 11 of the second work-up work cart 9 is greater than the passage size of the screening device 11 of the first work-up work cart 8.

In Fig. 5 It is shown how the screening device 11 may additionally be associated with a washing device 15. This washer 15 cleans the ballast of unusable fines such as dirt, humus, organic soil and components, chemical contaminants, etc. These non-usable fines are eliminated through final disposal.

Fig. 6a to 6f show in different embodiments, the material flow of the supplied substructure material 2 to the refurbishment module 10 of the respective work-up work car 8, 9. The black arrows show the gravel with larger fraction size and the white arrows show the gravel fraction with smaller grain size. Thus it can be seen how the ballast fraction with the smaller grain size falls through the screening device 11. Furthermore, it can be seen how the ballast is fed via different ways, namely via roof conveyor belts 13 and transfer conveyor belts 14 to the refurbishment module 10.

Fig. 7a and 7b Finally, a further development of the refurbishment work car 8, 9 to the effect that the refurbishment modules 10 not fixed and durable are connected to the corresponding work-up work cars 8, 9, but that the refurbishment modules 10 are part of a roof rack 16, which is arranged detachably on the respective work car 8, 9. This means that the base frame of the work cart can be equipped as required with a special roof rack 16, wherein the roof rack 16 - as in the illustrated embodiment - has a work-up module 10 for the work-up process according to the invention, but can also be equipped without reprocessing module 10 and then only Owns conveyor belts. As a result, the base work car are universally applicable, including in the sense of refurbishment of substructure materials 2 according to the invention using Aufarbeitungsmodulen 10, which are part of the roof frame 16 in this case.

LIST OF REFERENCE NUMBERS

1

track

2

Support material

3

Construction working car

4

Passing trolley

5

Intermediate bunker working car

6

Additional working car

7

Cleaning trolley

8th

Reconditioning working car

9

Reconditioning working car

10

workup module

11

screening

12

Floor conveyor

13

Roof conveyor belt

14

Transfer conveyor belt

15

wash

16

roof rack

Claims (8)

Method for refurbishing the substructure material (2) under the track (1) of a railway track,
in which an expansion work carriage (3) for removing the substructure material (2) as well as a plurality of modular and the dismantling work car (3) downstream processing work cart (8, 9) are used,
wherein first by means of the expansion work carriage (3) the substructure material (2) is removed and
subsequently in such a way that the removed substructure material (2) is successively supplied to the work-up trolley (8, 9),
that in the first presentation work cart (8) the substructure material (2) is partially worked up,
that the remaining substructure material (2) not processed in this first processing work cart (8) is supplied to the second processing work cart (9) for working up this remaining substructure material (2), and
that optionally in at least one further processing work cart, the preparation of the respective remaining substructure material (2) is carried out further successively. Method according to the preceding claim,
characterized in that
the substructure material (2) processed in the respective processing work cart (8, 9) is either temporarily stored in this processing work cart (8, 9) or fed to a separate work cart or removed outside the track area or returned to the construction site for replacement. Method according to one of the preceding claims,
characterized in that
a refurbishment module (10) is arranged at the end of the refurbishment work cart (8, 9). Method according to claim 3,
characterized in that
the refurbishment module (3) is arranged in the roof area of the refurbishment work cart (8, 9). Method according to claim 3 or 4,
characterized in that
the refurbishment module (10) is part of a roof rack (16) separate from the actual refurbishment work cart (8, 9), which is, if necessary, detachably arranged on the actual refurbishment work cart (8, 9). Method according to one of the preceding claims,
characterized in that
to work up the substructure material (2) this fractionated and possibly additionally cleaned. Method according to claim 6,
characterized in that
for fractionating the substructure material (2) a screening device (11) is used. Method according to one of the preceding claims,
characterized in that
the work car floor conveyor belts (12), roof conveyor belts (13) and end transfer belts (14) have.

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