DE2550820A1 - METHOD AND DEVICE FOR WASHING BED BALL OF RAILWAY TRACKS - Google Patents

Description

A 92o2 / 74 11/15/74

Franz Plasser railway construction machinery industrial company m.b.H. in Vienna

Method and device for washing the ballast ballast of railway tracks

Ing.Ha / Lei / AT

609821/0321

The invention relates to a method and a device for washing the ballast ballast of railway tracks during the mechanical cleaning of the ballast with the help of a mobile ballast bed cleaning machine, by means of which the ballast is taken up, screened and purer, if necessary while lifting the track framework Gravel is reintroduced.

The ballast of the railway tracks forming the bedding is soiled and has to be contaminated during the railway operation should always be cleaned once after a long period of time. This cleaning is necessary because to restore the elasticity and load-bearing capacity of the bedding and the stability of the track position to secure. The tracks, which largely consist of the cross sleepers connected to the rails, are partially located also on soft and especially on softenable surfaces such as loam, clay and mud, which is the case with deficient ones Drainage rises in the cavities of the ballast, with the ballast then being coated with these materials will. The track position is particularly unstable at these points and must therefore be repeated at short intervals be corrected.

When picking up the dirty ballast with the help of a Ballast bed cleaning machine is mostly only a part of the ground, dirt or the like. · When The sieving process is eliminated, while the part adhering to the gravel grains or stones returns with it reaches the track to form the ballast bed. With the sieving of the ballast alone, it can therefore be used in such Track sections are not cleaned satisfactorily.

It has already been suggested to clean the ballast Use sieving and washing systems that have at least one washing drum, a sand trap and water purifier onwei-ing, Ha / Lei

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sen. Such a system is, however, apart from the one to be carried Water tank relatively bulky and too heavy to be carried with the cleaning machine to be able to, furthermore, the existing screening plant is unused. It would also be conceivable to use the existing vibrating screen to use for washing. However, this measure in itself is not sufficient for a good cleaning, because the adhering substrate cannot be detached in the short time available.

The object of the invention is to create a method of the type mentioned at the outset with which a rapid detachment of the ground adhering to the gravel grains, dirt or the like., with a sufficient good cleaning action within acceptable economic limits can be achieved. According to the invention that will Objective according to the invention achieved in this way by using the above-mentioned method in the course of the machine Cleaning of the ballast, the substrate adhering to the ballast grains, dirt or the like., In particular during the ballast pick-up or the Äbfal! movement to the Sieve with high pressure water jets - if necessary with prior wetting of the unclean ballast or is detached and then washed off. This measure is relatively small with Effort achieved a quick and sufficiently good cleaning of the ballast grains and furthermore the effect of the Cleaning machine significantly increased in capacity. In particular, it is now with the measures according to the invention For the first time possible, gravel bed sections that are heavily mixed with clay or those that are subjected to heavy rain are exposed to cleaning in almost the same time as they are with the usual, uncontaminated routes must be expended.

The invention also relates to a mobile ballast bed cleaning machine to carry out the invention

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Method with ballast receiving organs, in particular a conveyor chain, cleaning devices, a vibrating screen system Or the like., And conveying means for re-introducing the cleaned ballast, which thereby is characterized in that wetting, detachment and washing nozzles in the area of the lower run of the conveyor chain, des Conveyor trough and the sieve box are arranged to deliver high pressure water jets with a Pump and a water source, preferably a mobile water tank, that of the gravel bed cleaning machine is downstream, are connected via pressure lines. The equipment of such a ballast bed cleaning machine with such high-pressure nozzles only for wetting with water or for detachment or for the washing process itself in the area of the conveyor chain or the conveyor trough and the sieve box is relative associated with low costs and can also be done easily - without hindering other machine parts or arrangements will. Furthermore, in connection with the conveying movement of the conveying means itself, a simple and but very effective washing or cleaning process before the gravel grains get to be screened. The pump and the mobile water tank can preferably be arranged downstream of the gravel bed cleaning machine, further depending on the area also fixed water connections with corresponding pipes for the supply of water use can find.

According to a further feature of the invention are the nozzles adjustable in their position on the ballast bed cleaning machine arranged and for applying the water jets against the direction of movement of the ballast in one optionally variable angle to the direction of ballast movement or also adjustable perpendicular to it. This measure allows the different gravel grains or on the respective degree of pollution

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and in particular the best possible Directions of exposure can be found quickly. Nozzles are expediently used for the delivery at least two water jets are formed, their points of impact at a distance from one another in each case the average Corresponding to the size of a gravel grain, whereby individual gravel grains almost rotate are offset and a particularly high cleaning effect can be achieved by this application.

Finally, according to a further feature of the invention, the nozzles can be used individually or in groups - according to the degree of contamination of the ballast to be cleaned - can be acted upon with higher or lower water pressure. In order to Another possibility is created to focus on the degree of pollution of the ballast.

The conveyor chain and / or the conveyor trough itself, like the screening system with the sieves, can have a vibration drive be connected in order 'to achieve a further increase in the performance of the cleaning process through this further movement. The machine according to the invention can also be equipped with collecting devices for the dirty water and, if necessary, water purification devices and sand separator.

The invention will now be described with reference to an embodiment example shown in the drawing, wherein further advantages emerge. In the drawing Fig.l shows a longitudinal view (partially in section) of a such mobile gravel bed cleaning machine according to the invention, Fig.2 is a plan view of this machine and FIGS. 3 and 4 show, on a larger scale, details of the nozzle arrangements in the region of the conveyor chain.

On the one consisting of rails 1 and cross sleepers 2

1/0321

G.leis, which is stored on the dirty ballast 3 and the already cleaned ballast 4, is a ballast bed cleaning machine 5, which is followed by a water tank 6, can be moved. The usual cleaning process with such a ballast bed cleaning machine consists in that by the conveyor chain 7 of the contaminated Ballast 3 added and over the conveyor trough 8 obliquely upwards to a vibrating screen system 9 with several Seven Io is promoted. The cleaned ballast is then by means of a conveyor belt 11 near the receiving point brought back to the track, while the sieve waste is brought to the loading area with conveyor belts 12 and 13 will.

With the mobile gravel bed cleaning machine designed according to the invention is now the adhering to the gravel grains of the ground, dirt or the like, especially during the ballast pick-up or during the move the individual gravel grains to the vibration screening system 9 with high pressure water jets, e.g. over 30 atmospheres from the water tank 6 acted upon by means of a pump 14 through high pressure pipes or hoses 15 via nozzles 16,17,18 or « replaced. This process can expediently a wetting of the unclean ballast with water by means of wetting nozzles

16 to ensure the longest possible network times and thus to achieve a better cleaning process. High-pressure cleaning nozzles are preferably used as nozzles, according to the respective tasks, atomizer nozzles for wetting and full jet nozzles for detachment and flat jet nozzles can be used for washing. Preferably, as can be seen from the drawing, in the lower strand of the conveyor chain at least four to five pairs of nozzles 16 and in the lower region of the conveyor chain at least five to six pairs of nozzles on the side of the chain strand conveying up in the conveyor trough 8

17 and also at least three to four rows of washing nozzles 18 are arranged in the area of the vibrating screen system 9.

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The individual nozzles that are used to deliver jets of water High pressure with the pump 14 and the water tank • are connected, are in particular in their location opposite to the conveyor chain 7 and to apply the water jets in the desired manner against the direction of movement of the ballast arranged adjustable, for example by articulated arrangement with clamping od. The like. This adjustability can be achieved by a wide variety of known measures, e.g. adjusting devices 19, These can be seen in FIGS. 3 and 4. It is essential that these nozzles if necessary also adjustable at an optionally variable angle to the direction of the ballast movement or also perpendicular to it are arranged. Both the nozzles 16 and the dissolving nozzle 17 and also the washing nozzles 18 are useful arranged at a distance from each other, which corresponds approximately to the average size of a gravel grain, for example 6o mm. Of course, a larger number of nozzles can also be arranged, in which case each also the direction of radiation in such a way to each other through the possibility of adjusting the nozzles to the existing one Gravel grain size or the soiled gravel condition can be turned off.

As can be seen from FIGS. 3 and 4, for example the nozzles 17 are arranged in pairs in such a way that their jets have a variable angle to the direction of movement lock in. From the illustration on the basis of FIGS. 3 and 4, a nozzle attachment is in connection with the adjusting devices 19 can be seen with which almost every beam system and beam direction is adjustable. The nozzles themselves are preferably arranged in groups and according to the degree of soiling the ballast to be cleaned can be hit via the pump 14 with higher or lower water pressure. TJm To increase the cleaning performance even further by acting on the nozzles, the Conveyor chain or at least the conveyor trough with one

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Vibration drive 2o are connected.

The ballast bed cleaning machine according to Figures 1 and is also equipped with collecting devices, expediently with containers, 21 and 22, in which the soiled Water is collected. From there it is either emptied directly or a conventional water purification device, e.g. a hydrocyclone. The pure water is pumped back into the water tank and the deposited sand is deposited along the track.

Of course, the invention is not limited to the exemplary embodiment shown, but it can in particular in the context of the choice of the different nozzles, the number and in particular the arrangement Various other useful changes can be made to such nozzles without departing from the invention. For example, such nozzles can also be arranged directly in the screen box to ensure that these jets of high pressure water the gravel grains falling on the sieve or sieves in the act on free fall, possibly depending on the choice of nozzle directions According to the degree of pollution, corresponding conditions can be created in connection with the The usual screen cleaning process does not result in one-sided agglomerations or accumulations of such materials .

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Claims (7)

Claims Method of washing the ballast ballast of railway tracks during machine cleaning the ballast with the help of a mobile ballast bed cleaning machine, by means of which the ballast can be removed if necessary while lifting the track frame, it is picked up, screened and pure ballast is reintroduced, characterized in that the substrate adhering to the gravel grains, dirt or the like., In particular during the ballast pick-up, or. the movement of waste to the sieve, with high pressure water jets - if necessary applied with prior wetting of the unclean ballast or, is detached and then washed off. 2. Mobile ballast bed cleaning machine for performing the method according to claim 1 with ballast receiving members, in particular a conveyor chain, cleaning devices, a vibrating screen system (9) and Funding means for reintroducing the cleaned ballast, characterized in that wetting, detaching and washing nozzles (16, 17, 18) in the area of the lower run the conveyor chain (7), the conveyor trough (8) and the screening system (9) are arranged for the delivery of water jets high pressure with a pump (14) and a water source, preferably a mobile water tank (6), which is arranged downstream of the ballast bed cleaning machine, are in communication via pressure lines (15). 3. Machine according to claim 2, characterized in that the nozzles (16,17,18) in their position on the ballast bed cleaning machine (5) arranged to be adjustable and for applying the water jets against the direction of movement of the ballast at an optionally changeable angle to the direction of the ballast movement or also vertically are designed to be adjustable. 609821/0321 4. Machine according to one of claims 2 or 3, characterized by the use of nozzles (16,17,18) which are designed to deliver at least two water jets, the points of impact of which are spaced apart from one another corresponds to the average size of a gravel grain. 5. Machine according to one of claims 2, 3 or 4, characterized in that the nozzles (16,17,18) individually or in groups - according to the degree of soiling of the ballast to be cleaned - with higher or lower water pressure can be acted upon. 6. Machine according to one of claims 2 to 5, characterized characterized in that the conveyor chain (7) and / or the conveyor trough (8) is connected to a vibration drive (2o) is. 7. Machine according to one of claims 2 to 6, characterized in that additional collecting devices (21,22) for the dirty water and, if necessary, water purification devices and sand separators are provided. Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. 609821/0321 Blank page